CN208855295U - A kind of blackboard suitable for English teaching - Google Patents
A kind of blackboard suitable for English teaching Download PDFInfo
- Publication number
- CN208855295U CN208855295U CN201821475706.3U CN201821475706U CN208855295U CN 208855295 U CN208855295 U CN 208855295U CN 201821475706 U CN201821475706 U CN 201821475706U CN 208855295 U CN208855295 U CN 208855295U
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- blackboard
- fixedly connected
- slot
- sliding
- pen clip
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- 238000005452 bending Methods 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to educational aid fields, more particularly to a kind of blackboard suitable for English teaching, including blackboard framework, fixed blackboard, Sliding blackboard, blackboard eraser, scriber and support frame, the middle-end of the blackboard framework is equipped with embedded groove, the left and right ends of blackboard framework are respectively provided with a rectangular straight slot, and two rectangular straight slot are all connected to embedded groove；The fixed blackboard is fixedly connected on the rear end on the inside of embedded groove；The inside of two rectangular straight slot is respectively slidably connected one piece of Sliding blackboard, and two pieces of Sliding blackboards are all slidably connected in the front end of embedded groove；The left and right ends of the blackboard framework are respectively fixedly connected with a blackboard eraser；The middle-end of two blackboard erasers is respectively fixedly connected with a scriber；The lower end of the blackboard framework is fixedly connected on the support frame.The striping jobs that blackboard eraser inside the utility model can be synchronized while wiping to Sliding blackboard by scriber, convenient for improving English Teaching Effect.
Description
Technical field
The utility model relates to educational aid fields, more particularly to a kind of blackboard suitable for English teaching.
Background technique
Blackboard is the plane that can repeatedly write, and plate face is hard, is chiefly used in teaching or explaining information and scheme
During.However, using general blackboard in the teaching process of current English, it is used to there is no special blackboard
The used in English writing font of specification user, in general, teacher needs to mark three rulings on blackboard and comes for English words in English teaching
Female, word is imparted knowledge to students, and when scribing line uses set square or ruler more, but the set square of the prior art or ruler limited length,
Cannot once draw very length straight line, when use must repeatedly extend the straight line that a long length just can be obtained, very not
It is convenient；And blackboard in the prior art wipes be more troublesome when in use, the efficiency of wiping is lower.
Utility model content
The purpose of the utility model is to provide a kind of blackboard suitable for English teaching, it is internally provided with for black to sliding
The blackboard eraser that plate is wiped, by Sliding blackboard, shuttle pulling be can be realized to Sliding blackboard entirety on blackboard framework
Work, and the striping jobs that blackboard eraser wipes Sliding blackboard while can synchronize by scriber are wiped, just
In raising English Teaching Effect.
The purpose of this utility model is achieved through the following technical solutions:
A kind of blackboard suitable for English teaching, including blackboard framework, fixed blackboard, Sliding blackboard, blackboard eraser, scriber
And support frame, the middle-end of the blackboard framework are equipped with embedded groove, and the left and right ends of blackboard framework are respectively provided with a rectangular straight slot, and two
A rectangular straight slot is all connected to embedded groove；The fixed blackboard is fixedly connected on the rear end on the inside of embedded groove；Two rectangular straight slot
Inside is respectively slidably connected one piece of Sliding blackboard, and two pieces of Sliding blackboards are all slidably connected in the front end of embedded groove；It is described
The left and right ends of blackboard framework are respectively fixedly connected with a blackboard eraser；The middle-end of two blackboard erasers is respectively fixedly connected with a scriber；
The lower end of the blackboard framework is fixedly connected on the support frame.
The Sliding blackboard includes blackboard body and postive stop baffle；The blackboard body sliding connection is in rectangular straight slot
Inside, postive stop baffle is fixedly connected on the inside of blackboard body.
The blackboard eraser includes that blackboard eraser ontology, spring lever, compressed spring, pulling plate, fixed plate, mounting base and two bendings turn
Axis；The spring lever is equipped with two；One end of the spring lever is fixedly connected on blackboard eraser ontology, spring lever sliding connection
In fixed plate, the other end of spring lever is fixedly connected on pulling plate, and compressed spring, the both ends of compressed spring are cased on spring lever
It is respectively fixedly connected on wiping board ontology and fixed plate；The fixed plate is fixedly connected in mounting base；Two are bent shaft
One end is rotatably assorted respectively is connected to the upper and lower ends of mounting base, and the other end of two bending shafts is connected to blackboard framework
Upper and lower ends；The trailing flank of the blackboard eraser ontology is slidably connected in the plate face of Sliding blackboard.
The blackboard eraser further includes worm screw, worm gear, bridge plate and adjusts turntable；The other end rotation of the bending shaft is matched
Conjunction is connected on blackboard framework；One end axis body for being bent shaft connection blackboard framework is d-axis；A piece bending shaft connects blackboard
A worm gear is fixedly connected on the axis body of frame, worm gear engages connecting worm, and worm screw, which is rotatably assorted, to be connected on bridge plate, bridge
Plate is fixedly connected on blackboard framework；One end of the worm screw is fixedly connected with adjusting turntable.
The scriber includes pen clip device, six rib travellers, movable plate, external screw thread rotary shaft and rotating block；Six rib
Traveller is equipped with more, and Duo Genliu rib traveller is uniformly slidably connected in mounting base, and the front end of Duo Genliu rib traveller is all fixed
It is connected on movable plate, the rear end of Duo Genliu rib traveller is respectively fixedly connected with a pen clip device；Before the external screw thread rotary shaft
End is fixedly connected with rotating block, and external screw thread rotary shaft is rotatably connected on movable plate by rolling bearing units, after external screw thread rotary shaft
End is connected through a screw thread in mounting base.
The pen clip device includes pen clip frame, center through slot, pen clip slot, pressure spring, spring base, top pillar and curved roof；Institute
The one end for stating pen clip frame is fixedly connected on six rib travellers, and the other end of pen clip frame is equipped with pen clip slot, and the middle-end of pen clip frame is equipped with
Center through slot is connected between center through slot and pen clip slot by circular through hole；The both ends of the top pillar are respectively fixedly connected with spring
Seat and curved roof, curved roof are slidably connected in the inside of pen clip slot, and spring base is fixedly connected with one end of pressure spring, pressure spring
The other end be fixedly connected on the medial surface of center through slot；The inside of the centrally disposed through slot of spring base.
The utility model has the beneficial effects that a kind of blackboard suitable for English teaching of the utility model, is internally provided with
Fixed blackboard and Sliding blackboard, convenient for being carried out to fixed blackboard and Sliding blackboard different while improving blackboard writing area
The use of mode is internally provided with the blackboard eraser for being wiped to Sliding blackboard, and Sliding blackboard is past on blackboard framework
The wiping work to Sliding blackboard entirety can be realized in compound pulling, meanwhile, blackboard eraser wipes Sliding blackboard same
When the striping jobs that can be synchronized by scriber, convenient for improving English Teaching Effect.
Detailed description of the invention
Fig. 1 is the overall structure diagram one of the utility model；
Fig. 2 is the overall structure diagram two of the utility model；
Fig. 3 is the structural schematic diagram of blackboard framework inside the utility model；
Fig. 4 is the structural schematic diagram of the utility model internal slide blackboard；
Fig. 5 is the structural schematic diagram one of blackboard eraser inside the utility model；
Fig. 6 is the structural schematic diagram two of blackboard eraser inside the utility model；
Fig. 7 is the structural schematic diagram of scriber inside the utility model；
Fig. 8 is the structural schematic diagram of the utility model inner clamps pen device.
In figure: blackboard framework 1；Embedded groove 1-1；Rectangular straight slot 1-2；Fixed blackboard 2；Sliding blackboard 3；Blackboard body 3-1；
Postive stop baffle 3-2；Blackboard eraser 4；Blackboard eraser ontology 4-1；Spring lever 4-2；Compressed spring 4-3；Pulling plate 4-4；Fixed plate 4-5；Installation
Seat 4-6；It is bent shaft 4-7；Worm screw 4-8；Worm gear 4-9；Bridge plate 4-10；Adjust turntable 4-11；Scriber 5；Pen clip device 5-
1；Pen clip frame 5-1-1；Center through slot 5-1-2；Pen clip slot 5-1-3；Pressure spring 5-1-4；Spring base 5-1-5；Top pillar 5-1-6；Arc
Top plate 5-1-7；Six rib traveller 5-2；Movable plate 5-3；External screw thread rotary shaft 5-4；Rotating block 5-5；Support frame 6.
Specific embodiment
1-8 is described in further detail the utility model with reference to the accompanying drawing.
Specific embodiment 1:
As shown in figures 1-8, a kind of blackboard suitable for English teaching, including blackboard framework 1, fixed blackboard 2, Sliding blackboard
3, the middle-end of blackboard eraser 4, scriber 5 and support frame 6, the blackboard framework 1 is equipped with embedded groove 1-1, the left and right two of blackboard framework 1
End is respectively provided with rectangular straight slot a 1-2, two rectangular straight slot 1-2 and is all connected to embedded groove 1-1；The fixed blackboard 2 is fixedly connected
Rear end on the inside of embedded groove 1-1；The inside of two rectangular straight slot 1-2 is respectively slidably connected one piece of Sliding blackboard 3, two pieces of cunnings
Dynamic blackboard 3 is all slidably connected in the front end of embedded groove 1-1；The left and right ends of the blackboard framework 1 are respectively fixedly connected with one
Blackboard eraser 4；The middle-end of two blackboard erasers 4 is respectively fixedly connected with a scriber 5；The lower end of the blackboard framework 1 is fixedly connected on
On support frame 6.A kind of blackboard suitable for English teaching of the utility model can pass through outside Slideslip two when in use
A Sliding blackboard 3 shows the plate face of fixed blackboard 2, is convenient for while utilizing Sliding blackboard 3 and fixed blackboard 2, can be effective
Write area is improved, the time of wiping blackboard is reduced, improves efficiency of teaching；The Sliding blackboard 3 when in use, when needing to carry out
When wiping, by pulling Sliding blackboard 3 to contact the plate face of Sliding blackboard 3 with blackboard eraser 4 outward and inwardly, thus logical
Blackboard eraser 4 is crossed Sliding blackboard 3 is carried out to wipe work on a large scale；And it is needing to carry out striping jobs while wiping blackboard
When, it can be contacted so that the pen on scriber 5 has with the plate face of Sliding blackboard 3 by adjusting the scriber 5 after installing pen tool,
Then Sliding blackboard 3 is pushed to the outside of blackboard framework 1, so that blackboard eraser 4 carries out Sliding blackboard 3 to wipe work on a large scale
Scriber 5 carries out striping jobs while work；But it when Sliding blackboard 3 is pushed to the inside of blackboard framework 1, can not carry out
Synchronous striping jobs, when needing setting-out not need wiping Sliding blackboard 3, so that pen tool and Sliding blackboard 3 on scriber 5
Plate face contact while, blackboard eraser 4 is pulled along, so that the blackboard eraser ontology 4-1 on blackboard eraser 4 is separated i.e. with Sliding blackboard 3
It can.
Specific embodiment 2:
As shown in figures 1-8, the Sliding blackboard 3 includes blackboard body 3-1 and postive stop baffle 3-2；The blackboard body 3-1
In the inside of rectangular straight slot 1-2, postive stop baffle 3-2 is fixedly connected on the inside of blackboard body 3-1 for sliding connection.Limiting block
Plate 3-2 is bolted to connection in blackboard body 3-1, makes it easy to disassembly installation.
Specific embodiment 3:
As shown in figures 1-8, the blackboard eraser 4 include blackboard eraser ontology 4-1, spring lever 4-2, compressed spring 4-3, pulling plate 4-4,
Fixed plate 4-5, mounting base 4-6 and two bending shaft 4-7；The spring lever 4-2 is equipped with two；The one of the spring lever 4-2
End is fixedly connected on blackboard eraser ontology 4-1, and spring lever 4-2 is slidably connected on fixed plate 4-5, and spring lever 4-2's is another
End is fixedly connected on pulling plate 4-4, and compressed spring 4-3 is cased on spring lever 4-2, and the both ends of compressed spring 4-3 are fixed respectively to be connected
It connects on blackboard eraser ontology 4-1 and fixed plate 4-5；The fixed plate 4-5 is fixedly connected on mounting base 4-6；Two bending shafts
One end of 4-7 is rotatably assorted respectively is connected to the upper and lower ends of mounting base 4-6, and the other end of two bending shaft 4-7 connects respectively
It connects in 1 upper and lower ends of blackboard framework；The trailing flank of the blackboard eraser ontology 4-1 is slidably connected in the plate face of Sliding blackboard 3.
The blackboard eraser 4 further includes worm screw 4-8, worm gear 4-9, bridge plate 4-10 and adjusts turntable 4-11；The bending turns
The other end of axis 4-7, which is rotatably assorted, to be connected on blackboard framework 1；It is straight for being bent one end axis body of shaft 4-7 connection blackboard framework 1
Axis；A worm gear 4-9, worm gear 4-9 engagement connection snail are fixedly connected on the axis body of a piece bending shaft 4-7 connection blackboard framework 1
Bar 4-8, worm screw 4-8, which are rotatably assorted, to be connected on bridge plate 4-10, and bridge plate 4-10 is fixedly connected on blackboard framework 1；It is described
One end of worm screw 4-8, which is fixedly connected, adjusts turntable 4-11.
When in use, blackboard eraser ontology 4-1 is contacted with the plate face of Sliding blackboard 3 blackboard eraser 4 always in a normal state,
When not needing to wipe Sliding blackboard 3, pulling plate 4-4 is pulled forwards, and two spring lever 4-2 are driven by pulling plate 4-4
The forward slip on fixed plate 4-5, compressed spring 4-3 is compressed at this time, after user unclamps pulling plate 4-4, blackboard eraser sheet
Body 4-1 is contacted with the plate face of Sliding blackboard 3 again under the elastic force effect of compressed spring 4-3；The blackboard eraser 4 when in use,
The appropriate adjusting of up and down direction can also be carried out to the position of blackboard eraser ontology 4-1, and can be by fitting to the position mounting base 4-6
When the position for adjusting to draw lines to scriber 5 carries out adjusting appropriate；When adjusting, rotation adjusts turntable 4-11 and drives worm screw
4-8 is rotated, worm screw 4-8 rotate when worm gear 4-9 can be driven to be rotated, worm gear 4-9 rotate when can drive one it is curved
One end of bent shaft 4-7 carries out the rotation of move angle, and the other end of bending shaft 4-7 drives the position hair of mounting base 4-6
Raw a degree of displacement is completed to blackboard eraser ontology so that blackboard eraser ontology 4-1 and the position of scriber 5 be driven to move
The appropriate adjusting of 5 position 4-1 and scriber；Simultaneously as worm screw 4-8's and worm gear 4-9 is used cooperatively, it is being adjusted
After may be implemented it is self-locking, prevent using when generate offset.
Specific embodiment 4:
As shown in figures 1-8, the scriber 5 includes pen clip device 5-1, six rib traveller 5-2, movable plate 5-3, external screw thread rotation
Shaft 5-4 and rotating block 5-5；The six ribs traveller 5-2 is equipped with more, and Duo Genliu rib traveller 5-2 is uniformly slidably connected
On mounting base 4-6, the front end of Duo Genliu rib traveller 5-2 is all fixedly connected on movable plate 5-3, after Duo Genliu rib traveller 5-2
End is respectively fixedly connected with a pen clip device 5-1；The front end of the external screw thread rotary shaft 5-4 is fixedly connected with rotating block 5-5, external screw thread
Rotary shaft 5-4 is rotatably connected on movable plate 5-3 by rolling bearing units, and the rear end of external screw thread rotary shaft 5-4 is connected through a screw thread
On mounting base 4-6.
The scriber 5 when in use, can be gripped pen tool by pen clip device 5-1, then by turning
Turn motion block 5-5 adjusts pen tool and the position of Sliding blackboard 3, so that adjusting pen tool and contacting with Sliding blackboard 3 is convenient for picture
Line work, when adjusting, rotation rotating block 5-5 drives external screw thread rotary shaft 5-4 to be rotated, external screw thread rotary shaft 5-4 rotation
When, the distance between movable plate 5-3 and mounting base 4-6 can be made to change, mounting base 4-6 and external screw thread rotary shaft 5-4
Axis body contact position change, thus drive six rib traveller 5-2 slided in the front-back direction on mounting base 4-6,
And then the position of pen tool on pen clip device 5-1 and pen clip device 5-1 is driven to change by six rib traveller 5-2.
Specific embodiment 5:
As shown in figures 1-8, the pen clip device 5-1 include pen clip frame 5-1-1, center through slot 5-1-2, pen clip slot 5-1-3,
Pressure spring 5-1-4, spring base 5-1-5, top pillar 5-1-6 and curved roof 5-1-7；One end of the pen clip frame 5-1-1 is fixedly connected
On six rib traveller 5-2, the other end of pen clip frame 5-1-1 is equipped with pen clip slot 5-1-3, and the middle-end of pen clip frame 5-1-1 is equipped with center
Through slot 5-1-2 is connected between center through slot 5-1-2 and pen clip slot 5-1-3 by circular through hole；The both ends of the top pillar 5-1-6
It is respectively fixedly connected with spring base 5-1-5 and curved roof 5-1-7, curved roof 5-1-7 is slidably connected in pen clip slot 5-1-3
Inside, spring base 5-1-5 is fixedly connected with one end of pressure spring 5-1-4, and the other end of pressure spring 5-1-4 is fixedly connected on center through slot
On the medial surface of 5-1-2；The inside of the centrally disposed through slot 5-1-2 of spring base 5-1-5.The pen clip device 5-1 when in use,
Outer Slideslip of the top pillar 5-1-6 to pen clip slot 5-1-3 can be driven by pressing spring base 5-1-5, so that pressure spring 5-1-4 is pressed
Contracting so that curved roof 5-1-7 is adjacent on the medial surface of pen clip slot 5-1-3, thus by pen tool be inserted into pen clip slot 5-1-3 and
Between curved roof 5-1-7, then trip spring seat 5-1-5, spring base 5-1-5 drive under the elastic force effect of pressure spring 5-1-4
Top pillar 5-1-6 has to drive curved roof 5-1-7 to hold out against by top pillar 5-1-6 in pen to the interior Slideslip of pen clip slot 5-1-3
On, realize the fixation having to pen.
A kind of blackboard suitable for English teaching of the utility model when in use can be two by outside Slideslip
Sliding blackboard 3 shows the plate face of fixed blackboard 2, is convenient for while utilizing Sliding blackboard 3 and fixed blackboard 2, can effectively mention
High write area reduces the time of wiping blackboard, improves efficiency of teaching；The Sliding blackboard 3 when in use, when being wiped
When wiping, by pulling Sliding blackboard 3 to contact the plate face of Sliding blackboard 3 with blackboard eraser 4 outward and inwardly, to pass through
Blackboard eraser 4 carries out Sliding blackboard 3 to wipe work on a large scale；And it is needing to carry out striping jobs while wiping blackboard
When, it can be contacted so that the pen on scriber 5 has with the plate face of Sliding blackboard 3 by adjusting the scriber 5 after installing pen tool,
Then Sliding blackboard 3 is pushed to the outside of blackboard framework 1, so that blackboard eraser 4 carries out Sliding blackboard 3 to wipe work on a large scale
Scriber 5 carries out striping jobs while work；But it when Sliding blackboard 3 is pushed to the inside of blackboard framework 1, can not carry out
Synchronous striping jobs, when needing setting-out not need wiping Sliding blackboard 3, so that pen tool and Sliding blackboard 3 on scriber 5
Plate face contact while, blackboard eraser 4 is pulled along, so that the blackboard eraser ontology 4-1 on blackboard eraser 4 is separated i.e. with Sliding blackboard 3
It can.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to
In the protection scope of the utility model.
Claims (5)
1. a kind of blackboard suitable for English teaching, including blackboard framework (1), fixed blackboard (2), Sliding blackboard (3), blackboard eraser
(4), scriber (5) and support frame (6), it is characterised in that: the middle-end of the blackboard framework (1) is equipped with embedded groove (1-1), blackboard
The left and right ends of frame (1) are respectively provided with a rectangular straight slot (1-2), and two rectangular straight slot (1-2) are all connected to embedded groove (1-1)；
The fixed blackboard (2) is fixedly connected on the rear end on the inside of embedded groove (1-1)；It respectively slides the inside of two rectangular straight slot (1-2)
Be cooperatively connected one piece of Sliding blackboard (3), and two pieces of Sliding blackboards (3) are all slidably connected in the front end of embedded groove (1-1)；It is described
The left and right ends of blackboard framework (1) are respectively fixedly connected with a blackboard eraser (4)；The middle-end of two blackboard erasers (4) is respectively fixedly connected with one
A scriber (5)；The lower end of the blackboard framework (1) is fixedly connected on support frame (6).
2. a kind of blackboard suitable for English teaching according to claim 1, it is characterised in that: blackboard eraser (4) packet
Rubbing board wipe ontology (4-1), spring lever (4-2), compressed spring (4-3), pulling plate (4-4), fixed plate (4-5), mounting base (4-6) and
Two bending shafts (4-7)；The spring lever (4-2) is equipped with two；One end of the spring lever (4-2) is fixedly connected on blackboard eraser
On ontology (4-1), spring lever (4-2) is slidably connected on fixed plate (4-5), and the other end of spring lever (4-2) is fixed to be connected
It connects on pulling plate (4-4), is cased on spring lever (4-2) compressed spring (4-3), the both ends of compressed spring (4-3) are fixed respectively to be connected
It connects on blackboard eraser ontology (4-1) and fixed plate (4-5)；The fixed plate (4-5) is fixedly connected on mounting base (4-6)；Two
One end of bending shaft (4-7) is rotatably assorted respectively is connected to the upper and lower ends of mounting base (4-6), two bending shafts (4-7)
The other end be connected to blackboard framework (1) upper and lower ends；The trailing flank sliding connection of the blackboard eraser ontology (4-1) exists
In the plate face of Sliding blackboard (3).
3. a kind of blackboard suitable for English teaching according to claim 2, it is characterised in that: the blackboard eraser (4) is also
Including worm screw (4-8), worm gear (4-9), bridge plate (4-10) and adjust turntable (4-11)；It is described to be bent the another of shaft (4-7)
End, which is rotatably assorted, to be connected on blackboard framework (1)；One end axis body for being bent shaft (4-7) connection blackboard framework (1) is d-axis；One
A worm gear (4-9), worm gear (4-9) engagement connection are fixedly connected on the axis body of root bending shaft (4-7) connection blackboard framework (1)
Worm screw (4-8), worm screw (4-8), which is rotatably assorted, to be connected on bridge plate (4-10), and bridge plate (4-10) is fixedly connected on blackboard frame
On frame (1)；One end of the worm screw (4-8), which is fixedly connected, adjusts turntable (4-11).
4. a kind of blackboard suitable for English teaching according to claim 3, it is characterised in that: scriber (5) packet
Include pen clip device (5-1), six rib travellers (5-2), movable plate (5-3), external screw thread rotary shaft (5-4) and rotating block (5-5)；It is described
Six rib travellers (5-2) are equipped with more, and uniformly sliding connection is on mounting base (4-6) for Duo Genliu rib traveller (5-2), Duo Genliu
The front end of rib traveller (5-2) is all fixedly connected on movable plate (5-3), and the rear end of Duo Genliu rib traveller (5-2) is respectively fixedly connected
One pen clip device (5-1)；The front end of the external screw thread rotary shaft (5-4) is fixedly connected with rotating block (5-5), external screw thread rotary shaft
(5-4) is rotatably connected on movable plate (5-3) by rolling bearing units, and the rear end of external screw thread rotary shaft (5-4) is connected through a screw thread
In mounting base (4-6).
5. a kind of blackboard suitable for English teaching according to claim 4, it is characterised in that: the pen clip device (5-
1) include pen clip frame (5-1-1), center through slot (5-1-2), pen clip slot (5-1-3), pressure spring (5-1-4), spring base (5-1-5),
Top pillar (5-1-6) and curved roof (5-1-7)；One end of the pen clip frame (5-1-1) is fixedly connected on six rib travellers (5-2)
On, the other end of pen clip frame (5-1-1) is equipped with pen clip slot (5-1-3), and the middle-end of pen clip frame (5-1-1) is equipped with center through slot (5-
1-2), it is connected between center through slot (5-1-2) and pen clip slot (5-1-3) by circular through hole；The both ends of the top pillar (5-1-6)
It is respectively fixedly connected with spring base (5-1-5) and curved roof (5-1-7), curved roof (5-1-7) is slidably connected in pen clip
The inside of slot (5-1-3), spring base (5-1-5) are fixedly connected with one end of pressure spring (5-1-4), and the other end of pressure spring (5-1-4) is solid
Surely it is connected on the medial surface of center through slot (5-1-2)；The inside of spring base (5-1-5) centrally disposed through slot (5-1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475706.3U CN208855295U (en) | 2018-09-10 | 2018-09-10 | A kind of blackboard suitable for English teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475706.3U CN208855295U (en) | 2018-09-10 | 2018-09-10 | A kind of blackboard suitable for English teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208855295U true CN208855295U (en) | 2019-05-14 |
Family
ID=66417399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475706.3U Expired - Fee Related CN208855295U (en) | 2018-09-10 | 2018-09-10 | A kind of blackboard suitable for English teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208855295U (en) |
-
2018
- 2018-09-10 CN CN201821475706.3U patent/CN208855295U/en not_active Expired - Fee Related
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