CN209191555U - A kind of type of push and pull up down blackboard - Google Patents
A kind of type of push and pull up down blackboard Download PDFInfo
- Publication number
- CN209191555U CN209191555U CN201821973356.3U CN201821973356U CN209191555U CN 209191555 U CN209191555 U CN 209191555U CN 201821973356 U CN201821973356 U CN 201821973356U CN 209191555 U CN209191555 U CN 209191555U
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- blackboard eraser
- electromagnet
- blackboard
- interior
- retainer
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Abstract
The utility model relates to teaching aids and office equipment field, and in particular to a kind of type of push and pull up down blackboard, including inner panel, interior blackboard eraser, outside plate and outer blackboard eraser, interior blackboard eraser are connected to the upper end of outside plate and between outside plate and inner panels；The type of push and pull up down blackboard of the utility model is by blackboard eraser and outer blackboard eraser in being arranged, therefore operator only need to pull outside plate that can clear up monolith blackboard, efficiently convenient；By blackboard eraser electromagnet absorption activity iron bar in controlling, wiping sponge at this time can bend and contact with inner plate surfaces, it will be able to wipe to inner panel；Blackboard eraser axis shaft end is adsorbed by controlling outer blackboard eraser electromagnet, the wiping sponge coated on blackboard eraser axis can contact with the surface of outside plate, it will be able to wipe to outside plate；Due to using magnet control, inner and outer plates or individually cleaning inner panel or outside plate can also be selected while cleared up as needed.
Description
Technical field
The utility model relates to teaching aids and office equipment field, and in particular to a kind of type of push and pull up down blackboard.
Background technique
Blackboard is essential equipment in classroom, and with the development of blackboard, the blackboard of monolith has been rarely employed, and is taught at present
Most commonly used in room is type of push and pull up down blackboard, and this blackboard is made of (in hereinafter referred to as inside blackboard and outside blackboard
Plate and outside plate), inner panel and outside plate always constant speed counter motion have the gap of certain distance between two plates.However blackboard eraser is but always
It does not update, when needing to clear up large area letter written with chalk, needs repeatedly to wipe by the blackboard eraser of operator's handheld size very little
Plate face, it is time-consuming and laborious, also occur that fugitive dust when wiping speed is too fast, destroy classroom environment, to the body of Faculty and Students have compared with
Big harm.
Utility model content
To solve problems of the prior art, the purpose of this utility model is to design a kind of type of push and pull up down blackboard,
The blackboard of the utility model eliminates the reliance on traditional blackboard wiping when clearing up large area letter written with chalk, only outside plate need to be pulled to clear up whole
A plate face, it is easy to operate high-efficient, the traditional small size scrubbing brush of effective solution there are the problem of.
The technical solution adopted in the utility model is as follows:
A kind of type of push and pull up down blackboard, including inner panel, interior blackboard eraser, outside plate, blackboard outer rim and outer blackboard eraser, blackboard outer rim
The periphery of inner panel and outside plate is set, and is connect with inner panel and outside plate；Interior blackboard eraser be connected to the upper end of outside plate and in outside plate with
Between inner panel；
Interior blackboard eraser includes interior blackboard eraser electromagnet, movable iron bar, wiping sponge, interior blackboard eraser retainer and the fixed dress of interior blackboard eraser
It sets, the fixed device of interior blackboard eraser is fixedly connected with outside plate, and interior blackboard eraser retainer is set on the fixed device of interior blackboard eraser, interior blackboard eraser electromagnetism
Ferropexy is fixedly connected with interior blackboard eraser electromagnet, wipes under sponge in the upper end of interior blackboard eraser retainer, the upper end for wiping sponge
End is fixedly connected with activity iron bar, and movable iron bar is set to the lower section of interior blackboard eraser electromagnet, when interior blackboard eraser electromagnet is by active iron
After item absorption, wiping sponge can bend and contact with inner plate surfaces；
Outer blackboard eraser includes outer blackboard eraser electromagnet, blackboard eraser axis, restoring board, elastic positioning device and outer blackboard eraser retainer；Outside plate
The one end for wiping retainer is connect with the middle part of blackboard outer rim, and the other end extends to the front of outside plate, outer blackboard eraser retainer with it is black
One end of plate outer rim connection is denoted as the rear end of outer blackboard eraser retainer, and one end that outer blackboard eraser retainer extends in front of outside plate is denoted as
The front end of outer blackboard eraser retainer, the front end of blackboard eraser retainer offer slideway, and restoring board is set in slideway and can be along slideway certainly
By sliding；Outer blackboard eraser electromagnet is arranged in the rear end of blackboard eraser retainer and is connected with restoring board, restoring board and blackboard eraser retainer
Reset spring is equipped between rear end；Blackboard eraser axis is set between restoring board and blackboard eraser retainer front end, and blackboard eraser axle position is before outside plate
The part of side is coated with wiping sponge, and the material of blackboard eraser axis shaft end is iron, after outer blackboard eraser electromagnet adsorbs blackboard eraser axis shaft end, plate
Restoring board can pressed against and compress reset spring by wiping axis shaft end, and the wiping sponge coated on blackboard eraser axis at this time can be with outside plate
Surface contact.
It is detachably connected between interior blackboard eraser retainer and the fixed device of interior blackboard eraser by concave convex groove structure.
The shape of interior blackboard eraser retainer is L shape, including orthogonal first while and when second, the first side and interior blackboard eraser are solid
Determine device connection, second while be in first while lower part and stretch to inner panel, the end on the second side is connected with rotational positioning block, rotation
Locating piece and the end on the second side are rotatably connected；The cunning that shape is moved up and down for movable iron bar between rotational positioning block and the first side
Road.
The upper end for wiping sponge is Nian Jie with interior blackboard eraser electromagnet, and the lower end for wiping sponge is Nian Jie with movable iron bar, fixed dress
It sets and is adhered on outside plate.
The outer blackboard eraser electromagnet jack for installing outer blackboard eraser electromagnet is offered in the middle part of blackboard eraser retainer rear end, restoring board
Middle part offers the restoring board through-hole passed through for movable core, and one end of outer blackboard eraser electromagnet is fixed at outer blackboard eraser electromagnet
In jack, the other end of outer blackboard eraser electromagnet passes through restoring board through-hole, and the part that outer blackboard eraser electromagnet passes through restoring board, which is equipped with, to be used
In the overhanging structure limited to restoring board.
The shaft end pin hole being adapted to the part that outer blackboard eraser electromagnet passes through restoring board is offered on blackboard eraser axis shaft end, works as outside plate
When wiping electromagnet absorption blackboard eraser axis shaft end, outer blackboard eraser electromagnet partially protrudes into the pin hole of shaft end across restoring board；Blackboard eraser axis axis
End is equipped with a shaft end pin hole every 90 ° along its circumferential direction；
The lower part of slideway is equipped with elastic positioning device, and elastic positioning device is the elastic pin shaft being adapted to shaft end pin hole, when
When outer blackboard eraser electromagnet absorption blackboard eraser axis shaft end, elastic positioning device can bend to adapt to the displacement of blackboard eraser axis shaft end.
The utility model has the advantages that
The type of push and pull up down blackboard of the utility model is by blackboard eraser and outer blackboard eraser in being arranged, therefore operator only needs to pull
Outside plate can clear up monolith blackboard, efficiently convenient；By blackboard eraser electromagnet absorption activity iron bar in controlling, sponge energy is wiped at this time
It is enough to bend and contacted with inner plate surfaces, it will be able to which that inner panel is wiped；Blackboard eraser axis axis is adsorbed by controlling outer blackboard eraser electromagnet
It holds, the wiping sponge coated on blackboard eraser axis can contact with the surface of outside plate, it will be able to wipe to outside plate；Due to using electricity
Magnet control, therefore can also select while clear up inner and outer plates or individually cleaning inner panel or outside plate as needed.
Detailed description of the invention
The schematic three dimensional views of Fig. 1 the utility model type of push and pull up down blackboard；
Blackboard eraser side structure schematic view in Fig. 2 the utility model；
The outer blackboard eraser side structure schematic view of Fig. 3 the utility model；
The outer blackboard eraser retainer partial 3-D structural schematic diagram of Fig. 4 the utility model；
The three dimensional structure diagram of Fig. 5 the utility model outside plate eraser board eraser axis；
The three dimensional structure diagram of Fig. 6 the utility model.
In figure: 1 inner panel, 2 outer blackboard erasers, 3 outside plates, blackboard eraser in 4, blackboard eraser wipes sponge, blackboard eraser electromagnet in 6,7 inner panels in 5
It wipes and fixes device, blackboard eraser retainer in 8,9 movable iron bars, 10 rotational positioning blocks, 11 outer blackboard eraser retainers, 12 reset springs, 13
Restoring board, 14 blackboard eraser axis, 15 elastic positioning device, 16 fixed bolt hole, 17 outer blackboard eraser electromagnet, 18 outer blackboard eraser electromagnet jacks,
19 restoring board through-holes, 20 blackboard eraser axis shaft ends, 21 blackboard eraser axis working shafts, 22 shaft end pin holes, 23 blackboard outer rims.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Referring to Fig.1~Fig. 4, the type of push and pull up down blackboard of the utility model, including inner panel 1, interior blackboard eraser 4, outside plate 3, outside plate
2 and blackboard outer rim 23 are wiped, the periphery of inner panel 1 Yu outside plate 3 is arranged in blackboard outer rim 23, and connect with inner panel 1 and outside plate 3；
As depicted in figs. 1 and 2, interior blackboard eraser 4 is connected to the upper end of outside plate 3 and between outside plate 3 and inner panel 1；Interior blackboard eraser 4 includes inner panel
Wipe electromagnet 6, movable iron bar 9, wiping sponge 5, interior blackboard eraser retainer 8 and the fixed device 7 of interior blackboard eraser, the fixed device 7 of interior blackboard eraser
It is fixedly connected with outside plate 3, interior blackboard eraser retainer 8 is set on the fixed device 7 of interior blackboard eraser, and interior blackboard eraser electromagnet 6 is fixed on inner panel
The upper end of retainer 8 is wiped, the upper end of wiping sponge 5 is fixedly connected with interior blackboard eraser electromagnet 6, wipes lower end and the activity of sponge 5
Iron bar 9 is fixedly connected, and movable iron bar 9 is set to the lower section of interior blackboard eraser electromagnet 6, when interior blackboard eraser electromagnet 6 inhales movable iron bar 9
Attached, wiping sponge 5 can bend and contact with 1 surface of inner panel；
As shown in Figure 3 and Figure 4, outer blackboard eraser 2 includes outer blackboard eraser electromagnet 17, blackboard eraser axis 14, restoring board 13, flexibly positioned dress
Set 15 and outer blackboard eraser retainer 11；One end of outer blackboard eraser retainer 11 is connect with the middle part of blackboard outer rim 23, and the other end extends
To the front of outside plate 3, one end that outer blackboard eraser retainer 11 is connect with blackboard outer rim 23 is denoted as the rear end of outer blackboard eraser retainer 11,
One end that outer blackboard eraser retainer 11 extends to the front of outside plate 3 is denoted as the front end of outer blackboard eraser retainer 11, before blackboard eraser retainer 11
End offers slideway, and restoring board 13 is set in slideway and can be free to slide along slideway；Outer blackboard eraser electromagnet 17 is arranged in blackboard eraser
The rear end of retainer 11 and it is connected with restoring board 13, reset spring is equipped between restoring board 13 and the rear end of blackboard eraser retainer 11
12；Blackboard eraser axis 14 is set between 11 front end of restoring board 13 and blackboard eraser retainer, and blackboard eraser axis 14 is located at the part in 11 front of outside plate
It is coated with wiping sponge, the material of blackboard eraser axis shaft end 20 is iron, after outer blackboard eraser electromagnet 17 adsorbs blackboard eraser axis shaft end 20, blackboard eraser
Axis shaft end 20 can press against restoring board 13 and compress reset spring 12, and the wiping sponge coated on blackboard eraser axis 14 at this time can be with
The surface of outside plate 3 contacts.
As the utility model preferred embodiment, as shown in Fig. 2, interior blackboard eraser retainer 8 and the fixed device 7 of interior blackboard eraser
Between be detachably connected by concave convex groove structure.
As the utility model preferred embodiment, as shown in Fig. 2, the shape of interior blackboard eraser retainer 8 is L shape, including
Orthogonal first while and when second, the first side connect with interior blackboard eraser fixed device 7, and the second lower part while in first is simultaneously
Inner panel 1 is stretched to, the end on the second side is connected with rotational positioning block 10, and rotational positioning block 10 and the end on the second side rotatably connect
It connects；The slideway that shape is moved up and down for movable iron bar 9 between rotational positioning block 10 and the first side.
As the utility model preferred embodiment, the upper end for wiping sponge 5 is Nian Jie with interior blackboard eraser electromagnet 6, wiping
The lower end of sponge 5 is Nian Jie with movable iron bar 9, and fixed device 7 is adhered on outside plate 3.
As the utility model preferred embodiment, as shown in Figure 3 and Figure 4, blackboard eraser retainer is opened in the middle part of 11 rear end
Equipped with the outer blackboard eraser electromagnet jack 18 for installing outer blackboard eraser electromagnet 17, the middle part of restoring board 13 is offered to be passed through for movable core
Restoring board through-hole 19, one end of outer blackboard eraser electromagnet 17 is fixed in outer blackboard eraser electromagnet jack 18, outer blackboard eraser electromagnetism
The other end of iron 17 passes through restoring board through-hole 19, and the part that outer blackboard eraser electromagnet 17 passes through restoring board 13 is equipped with for restoring board
The 13 overhanging structure 13-1 limited.
As the utility model preferred embodiment, as shown in figure 5, being offered on blackboard eraser axis shaft end 20 and outer blackboard eraser electricity
Magnet 17 passes through the shaft end pin hole 22 that the part of restoring board 13 is adapted to, when outer blackboard eraser electromagnet 17 adsorbs blackboard eraser axis shaft end 20,
Outer blackboard eraser electromagnet 17 partially protrudes into shaft end pin hole 22 across restoring board 13；Blackboard eraser axis shaft end 20 is along its circumferential direction every 90 °
Equipped with a shaft end pin hole 22；
The lower part of slideway is equipped with elastic positioning device 15, and elastic positioning device 15 is the resilient key being adapted to shaft end pin hole 22
Axis, when outer blackboard eraser electromagnet 17 adsorbs blackboard eraser axis shaft end 20, elastic positioning device 15 can bend to adapt to blackboard eraser axis
The displacement of shaft end 20.
Embodiment
In the type of push and pull up down blackboard of the present embodiment blackboard eraser 4 include interior blackboard eraser electromagnet 6, movable iron bar 9, wiping sponge 5,
Interior blackboard eraser retainer 8 and the fixed device 7 of interior blackboard eraser.Pass through tongue and groove knot between interior blackboard eraser retainer 8 and the fixed device 7 of interior blackboard eraser
Structure is detachably connected, and the shape of interior blackboard eraser retainer 8 is L shape；Interior blackboard eraser electromagnet 6 is fixed on retainer 8 by seccotine
Top, movable iron bar 9 are initially positioned in interior 8 bottom of blackboard eraser retainer, i.e., movable iron bar 9 rides on the second side, and movable iron bar 9 can
To slide up and down in the vertical direction；The two sides up and down of wiping sponge 5 are glued respectively to interior blackboard eraser electromagnet 6 and movable iron bar
On 9 side, interior blackboard eraser retainer 8 is removably mounted on the fixed device 7 of interior blackboard eraser by shape cooperation, the fixed dress of interior blackboard eraser
Set 7 tops that 3 back side of outside plate is fixed on by seccotine.Interior blackboard eraser electromagnet 6 is identical as 9 cun of active iron bar rule, and length is slightly longer
In 1 plate face length of inner panel, the length for wiping sponge 5 and interior blackboard eraser retainer 8 is equal to inner panel plate face length, wherein interior blackboard eraser is kept
8 bottom width of frame (i.e. the second edge lengths) is slightly larger than 9 width of movable iron bar, the rotational positioning positioned at interior 8 bottom of blackboard eraser retainer
10 length of block is greater than 9 sliding distance of movable iron bar, and guarantee activity iron bar 9 does not fall out or overturns in sliding up and down.
Referring to Fig. 3, outer blackboard eraser 2 includes outer blackboard eraser electromagnet 17, blackboard eraser axis 14, restoring board 13,15 and of elastic positioning device
Outer blackboard eraser retainer 11.Referring to Fig. 4, outer blackboard eraser electromagnet 17 is fixed on the groove of 11 inner cavity left end center of retainer (i.e.
Outer blackboard eraser electromagnet jack 18) it is inner, restoring board 13 is plastic material, is opened up on outer blackboard eraser retainer 11 for the sliding of restoring board 13
Slideway can be moved left and right by reset spring 12 in outer 11 inner cavity of blackboard eraser retainer, have in the middle part of restoring board 13 size with
The compatible restoring board through-hole 19 of outer blackboard eraser electromagnet 17, outer blackboard eraser electromagnet 17 all pass through restoring board through-hole 19 always.Reference
Fig. 5, blackboard eraser axis shaft end 20 are made of ferrous material, and one size of every 90 ° of arrangements is identical with outer 17 sectional dimension of blackboard eraser electromagnet
Shaft end pin hole 22, four equal chamferings in 22 the same side of shaft end pin hole are matched with outer 11 intracavity bottom elastic positioning device of blackboard eraser retainer
It closes, blackboard eraser axis middle section is blackboard eraser axis working shaft 21, and there are four working face, wiping sponge wrappings to exist for the tool of blackboard eraser axis working shaft 21
On blackboard eraser axis working shaft 21,20 diameter length of blackboard eraser axis shaft end is equal to outer 11 slideway height of blackboard eraser retainer, so that blackboard eraser axis can
To move left and right in slideway, outer 11 left end outer symmetrical of blackboard eraser retainer arranges two bolts hole, and two distance between borehole, which are less than, to be slided
The middle part for being fixed on blackboard outer rim 23, outer 11 slideway of blackboard eraser retainer is bolted in road height, outer blackboard eraser retainer 11
Right end is arc surface identical with blackboard eraser axis shaft end diameter.
Wherein, the movable iron bar 9 in interior blackboard eraser 4 is greater than the gravity of movable iron bar 9 by the magnetic force of interior blackboard eraser electromagnet 6
The sum of with movable 9 friction of iron bar；It is complete by the magnetic force of electromagnet to be greater than electromagnet for blackboard eraser axis shaft end in outer blackboard eraser 2
The elastic force of reset spring and the sum of the frictional force being subject to when movement when being inserted into blackboard eraser pin hole.
Interior blackboard eraser 4 and outer blackboard eraser 2 in the utility model are respectively intended to cleaning inner panel 1 and outside plate 3, interior blackboard eraser 4 and outside plate
2 are wiped to be controlled respectively by two switches.
When interior blackboard eraser electromagnet 6 is not powered on, movable iron bar 9 is located at interior blackboard eraser and keeps 8 frame bottoms, with interior blackboard eraser electromagnet 6
Between have certain distance, the interior blackboard eraser wiping sponge 5 for being bonded in 9 lateral surface of interior blackboard eraser electromagnet 6 and movable iron bar, which is in, to be stretched
State, interior blackboard eraser wiping sponge 5 do not contact inner plate surface.When connecting the switch of interior blackboard eraser electromagnet 6, interior blackboard eraser electromagnet 6 is logical
Electricity has magnetism, and movable iron bar 9 upward sliding under interior 6 magneticaction of blackboard eraser electromagnet is finally affixed with interior blackboard eraser electromagnet 6
It closes, interior blackboard eraser wiping sponge 5 is folded and on inner plate surface, and when pulling outside plate 3, interior blackboard eraser wiping sponge 5 can move therewith, complete
At the cleaning of inner plate surface, the switch of interior blackboard eraser electromagnet 6 is disconnected at this time, and interior blackboard eraser electromagnet 6 is magnetic to disappear, and movable iron bar 9 exists
Inner panel is fallen under gravity and wipes 8 frame bottoms of holding, at this moment the continuous tensional states that restore in interior blackboard eraser wiping sea 5 are drawn not with inner plate surface
Dynamic outside plate 3, inner plate surface will not be cleaned.
When outer blackboard eraser electromagnet 17 is not powered on, blackboard eraser axis is in initial position under the action of restoring board 13, and outer blackboard eraser is protected
Hold circumferentially positioned, the shaft end pin of blackboard eraser shaft end when the realization blackboard eraser axis initial position of elastic positioning device 15 of 11 runner rear end of frame
The movable core of the outer blackboard eraser electromagnet 17 of face always of hole 22, blackboard eraser axis working face is not contacted with outer plate surface at this time.It is outer when connecting
When the switch of blackboard eraser electromagnet 17, outer blackboard eraser electromagnet 17, which is powered, has magnetism, and blackboard eraser axis irony shaft end pushes away under magneticaction
Dynamic restoring board 13 is matched completely to the movable core close to 3 one Slideslip of outside plate, final shaft end pin hole 22 and outer blackboard eraser electromagnet 17
It closes, the wiping sponge on blackboard eraser axis working face is tightly attached in outer plate surface at this time, and outside plate 3 is pulled to can be realized to the clear of outer plate surface
Reason disconnects the switch of outer blackboard eraser electromagnet 17, and outer blackboard eraser electromagnet 17 loses magnetism, and blackboard eraser shaft end is in restoring board acting force of the spring
The lower wiping sponge restored to initial position, on blackboard eraser axis leaves outer plate surface.
When inner and outer plates are required to cleaning, the switch of inside and outside blackboard eraser electromagnet is all connected, outside plate 3 is pulled to reach its stroke
Terminal can clear up inner and outer plates simultaneously；When only inner panel needs to clear up, only by the switch connection of interior blackboard eraser electromagnet, pull
Outer 3 plate can clear up inner panel 1, and outer plate surface is unaffected；When only outside plate 3 needs to clear up, only by outer blackboard eraser electromagnet 17
Switch connection pulls outside plate 3 that can clear up outside plate 3, and inner plate surface is unaffected；When inner and outer plates do not need cleaning, by inside and outside blackboard eraser
The switch of electromagnet disconnects.Outside plate eraser board eraser axis has 4 working faces, outside access failure when the switch of blackboard eraser electromagnet 17
It can be manually rotated blackboard eraser axis, elastic positioning device 15 can pop up when perpendicular to shaft end 22 surface of internal cavity of pin hole, with shaft end pin hole 22
Chamfering fits, if continuing rotation needs biggish power, so that it may the replacement of operator's working face be prompted to finish.Interior blackboard eraser is with long
Afterwards can by interior blackboard eraser retainer 8 its wiping sponge more renewed of releasing from the fixed device 7 of interior blackboard eraser.
Claims (6)
1. a kind of type of push and pull up down blackboard, which is characterized in that including inner panel (1), interior blackboard eraser (4), outside plate (3), outer blackboard eraser (2) and
Blackboard outer rim (23), blackboard outer rim (23) be arranged in the periphery of inner panel (1) and outside plate (3), and with inner panel (1) and outside plate
(3) it connects；Interior blackboard eraser (4) is connected to the upper end of outside plate (3) and between outside plate (3) and inner panel (1)；
Interior blackboard eraser (4) includes interior blackboard eraser electromagnet (6), movable iron bar (9), wiping sponge (5), interior blackboard eraser retainer (8) and interior
Blackboard eraser is fixed device (7), and interior blackboard eraser fixed device (7) is fixedly connected with outside plate (3), and interior blackboard eraser retainer (8) is set to inner panel
It wipes on fixed device (7), interior blackboard eraser electromagnet (6) is fixed on the upper end of interior blackboard eraser retainer (8), wipes the upper end of sponge (5)
It is fixedly connected with interior blackboard eraser electromagnet (6), the lower end for wiping sponge (5) is fixedly connected with movable iron bar (9), movable iron bar (9)
It is set to the lower section of interior blackboard eraser electromagnet (6), after interior blackboard eraser electromagnet (6) adsorbs movable iron bar (9), is wiped sponge (5)
It can bend and be contacted with inner panel (1) surface；
Outer blackboard eraser (2) includes outer blackboard eraser electromagnet (17), blackboard eraser axis (14), restoring board (13), elastic positioning device (15) and outer
Blackboard eraser retainer (11)；One end of outer blackboard eraser retainer (11) is connect with the middle part of blackboard outer rim (23), and the other end extends to
The front of outside plate (3), one end that outer blackboard eraser retainer (11) connect with blackboard outer rim (23) are denoted as outer blackboard eraser retainer (11)
Rear end, one end that outer blackboard eraser retainer (11) extends in front of outside plate (3) is denoted as the front end of outer blackboard eraser retainer (11), blackboard eraser
The front end of retainer (11) offers slideway, and restoring board (13) is set in slideway and can be free to slide along slideway；Outer blackboard eraser electricity
Magnet (17) is arranged the rear end in blackboard eraser retainer (11) and is connected with restoring board (13), restoring board (13) and blackboard eraser retainer
(11) reset spring (12) are equipped between rear end；Blackboard eraser axis (14) is set to restoring board (13) and blackboard eraser retainer (11) front end
Between, the part that blackboard eraser axis (14) is located in front of outside plate (3) is coated with wiping sponge, and the material of blackboard eraser axis shaft end (20) is iron,
After outer blackboard eraser electromagnet (17) adsorbs blackboard eraser axis shaft end (20), blackboard eraser axis shaft end (20) can press against restoring board (13) and make multiple
Position spring (12) compresses, and the wiping sponge coated on blackboard eraser axis (14) at this time can contact with the surface of outside plate (3).
2. a kind of type of push and pull up down blackboard according to claim 1, which is characterized in that interior blackboard eraser retainer (8) and inner panel
It wipes and is detachably connected between fixed device (7) by concave convex groove structure.
3. a kind of type of push and pull up down blackboard according to claim 1, which is characterized in that the shape of interior blackboard eraser retainer (8)
For L shape, including orthogonal first while and when second, the first side connect with interior blackboard eraser fixed device (7), and the second side is in the
The lower part on one side is simultaneously stretched to inner panel (1), and the end on the second side is connected with rotational positioning block (10), rotational positioning block (10) and second
The end on side is rotatably connected；Shape has the slideway moved up and down for movable iron bar (9) between rotational positioning block (10) and the first side.
4. a kind of type of push and pull up down blackboard according to claim 1, which is characterized in that wiping sponge (5) upper end with it is interior
Blackboard eraser electromagnet (6) bonding, the lower end for wiping sponge (5) is Nian Jie with movable iron bar (9), and fixed device (7) are adhered to outside plate (3)
On.
5. a kind of type of push and pull up down blackboard according to claim 1, which is characterized in that in blackboard eraser retainer (11) rear end
Portion offers the outer blackboard eraser electromagnet jack (18) for installing outer blackboard eraser electromagnet (17), and confession is offered in the middle part of restoring board (13) can
One end of the restoring board through-hole (19) that dynamic iron core passes through, outer blackboard eraser electromagnet (17) is fixed at outer blackboard eraser electromagnet jack
(18) in, the other end of outer blackboard eraser electromagnet (17) passes through restoring board through-hole (19), and outer blackboard eraser electromagnet (17) passes through restoring board
(13) part is equipped with the overhanging structure (13-1) for being limited to restoring board (13).
6. a kind of type of push and pull up down blackboard according to claim 5, which is characterized in that offered on blackboard eraser axis shaft end (20)
The shaft end pin hole (22) being adapted to the part that outer blackboard eraser electromagnet (17) passes through restoring board (13), when outer blackboard eraser electromagnet (17) is inhaled
When attached plate wipes axis shaft end (20), outer blackboard eraser electromagnet (17) partially protrudes into shaft end pin hole (22) across restoring board (13)；Plate
It wipes axis shaft end (20) and is equipped with a shaft end pin hole (22) every 90 ° along its circumferential direction；
The lower part of slideway is equipped with elastic positioning device (15), and elastic positioning device (15) is the elasticity being adapted to shaft end pin hole (22)
Pin shaft, when outer blackboard eraser electromagnet (17) adsorbs blackboard eraser axis shaft end (20), elastic positioning device (15) can bend with suitable
Answer the displacement of blackboard eraser axis shaft end (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973356.3U CN209191555U (en) | 2018-11-27 | 2018-11-27 | A kind of type of push and pull up down blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973356.3U CN209191555U (en) | 2018-11-27 | 2018-11-27 | A kind of type of push and pull up down blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209191555U true CN209191555U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821973356.3U Expired - Fee Related CN209191555U (en) | 2018-11-27 | 2018-11-27 | A kind of type of push and pull up down blackboard |
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| CN (1) | CN209191555U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111710268A (en) * | 2020-07-10 | 2020-09-25 | 山东第一医科大学(山东省医学科学院) | Think political affairs instructor student management with bulletin device |
| CN112158008A (en) * | 2020-10-20 | 2021-01-01 | 烟台工程职业技术学院(烟台市技师学院) | Classroom education and teaching auxiliary device |
| CN112172384A (en) * | 2020-10-21 | 2021-01-05 | 南京工程学院 | From plug-type blackboard about taking blackboard eraser |
| CN112192978A (en) * | 2020-10-28 | 2021-01-08 | 张亚斌 | Blackboard eraser capable of being overturned for quick and repeated use |
| CN113427934A (en) * | 2021-06-17 | 2021-09-24 | 许昌学院 | Law case and law bar teaching auxiliary display teaching aid device |
| CN115534560A (en) * | 2022-09-19 | 2022-12-30 | 邵东市行知教育科技有限公司 | Multimedia push-pull type blackboard based on multimedia classroom of middle and primary schools |
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2018
- 2018-11-27 CN CN201821973356.3U patent/CN209191555U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710268A (en) * | 2020-07-10 | 2020-09-25 | 山东第一医科大学(山东省医学科学院) | Think political affairs instructor student management with bulletin device |
| CN112158008A (en) * | 2020-10-20 | 2021-01-01 | 烟台工程职业技术学院(烟台市技师学院) | Classroom education and teaching auxiliary device |
| CN112172384A (en) * | 2020-10-21 | 2021-01-05 | 南京工程学院 | From plug-type blackboard about taking blackboard eraser |
| CN112192978A (en) * | 2020-10-28 | 2021-01-08 | 张亚斌 | Blackboard eraser capable of being overturned for quick and repeated use |
| CN113427934A (en) * | 2021-06-17 | 2021-09-24 | 许昌学院 | Law case and law bar teaching auxiliary display teaching aid device |
| CN115534560A (en) * | 2022-09-19 | 2022-12-30 | 邵东市行知教育科技有限公司 | Multimedia push-pull type blackboard based on multimedia classroom of middle and primary schools |
| CN115534560B (en) * | 2022-09-19 | 2023-09-15 | 邵东市行知教育科技有限公司 | Multimedia push-pull blackboard based on middle and primary schools multimedia classroom |
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