CN108944198A - A kind of culture displaying device of classroom sucking chalk powder - Google Patents
A kind of culture displaying device of classroom sucking chalk powder Download PDFInfo
- Publication number
- CN108944198A CN108944198A CN201810789955.8A CN201810789955A CN108944198A CN 108944198 A CN108944198 A CN 108944198A CN 201810789955 A CN201810789955 A CN 201810789955A CN 108944198 A CN108944198 A CN 108944198A
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- Prior art keywords
- slot
- wall
- fixedly connected
- classroom
- front side
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Abstract
The invention discloses a kind of culture of classroom sucking chalk powder to show device, including mobile device, it inhales apparatus for ash and shows device, the mobile device includes wall fixing plate, the wall fixing plate is fixedly connected by screw with wall, the front side horizontal of the wall fixing plate offers elongated slot, and the inside level of elongated slot offers loose slot, the slot bottom of the loose slot is fixed with multiple groups spline, and spline is evenly arranged in the slot bottom of loose slot, free gear is equipped in the loose slot vertically, the front side of the free gear is equipped with fixed block, and by being flexibly connected in the middle part of pin shaft and the front side of free gear in the middle part of the rear side of fixed block, suction apparatus for ash is fixed on front side of the fixed block, by mobile device dust exhaust apparatus and displaying device are moved horizontally, chalk dust is absorbed convenient for dust exhaust apparatus, and to show device It can be with horizontal adjustment position convenient for viewing.
Description
Technical field
The present invention relates to culture and propaganda action technical field, the culture of specially a kind of classroom sucking chalk powder shows device.
Background technique
Classroom is the important place of a transmitting knowledge culture, and we have found that general classroom is that illiterate publicity is set
It is standby, fail to carry out student cultural transmission in student's free time, and the chalk dust of classroom blackboard is strong to the body of teacher student
Health has harm, and the present invention proposes that a kind of culture of classroom sucking chalk powder shows device thus, for solving the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of culture of classroom sucking chalk powder to show device, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of culture of classroom sucking chalk powder shows dress
It sets, including mobile device, suction apparatus for ash and displaying device, the mobile device includes wall fixing plate, the wall fixing plate
It is fixedly connected by screw with wall, the front side horizontal of the wall fixing plate offers elongated slot, and the inside level of elongated slot is opened
Equipped with loose slot, the slot bottom of the loose slot is fixed with the first spline of multiple groups, and the first spline is evenly arranged in loose slot
Slot bottom, free gear is equipped in the loose slot vertically, and the front side of the free gear is equipped with fixed block, and the rear side of fixed block
Middle part is fixed with suction apparatus for ash by being flexibly connected in the middle part of pin shaft and the front side of free gear on front side of the fixed block；
The suction apparatus for ash includes suction cinder box, is equipped with rectangular vertical tube, and rectangular vertical tube side horizontal in the suction cinder box vertically
Equipped with rectangular transverse tube, the side of the rectangular transverse tube is vertical with the side wall of rectangular vertical tube to be fixedly connected, the rectangular transverse tube it is interior
Side is equipped with filter screen, and the outside upright of the filter screen is equipped with unidirectional ventilating board, the rectangular transverse tube far from rectangular vertical tube one
Side is equipped with movable plate, translot is offered on front side of the movable plate, and reciprocating block is equipped in translot, and the inner wall for inhaling cinder box is logical
It crosses screw and is fixed with motor, rotating circular disc is fixed on front side of the motor, between the rotating circular disc and movable plate
Equipped with oscillating rod, one end of the oscillating rod is flexibly connected with the front side of rotating circular disc, and the other end and reciprocating block of oscillating rod
Flexible connection, it is horizontal between the reciprocating block and unidirectional ventilating board to be equipped with motion bar, the both ends of the motion bar respectively with it is past
It is fixedly connected in the middle part of the side wall of multiblock and unidirectional ventilating board side wall, is fixed with displaying device on front side of the suction cinder box；
The displaying device includes placing frame and display screen, the display location in placing frame, and the side wall of display screen with put
The inner wall for setting frame is fixedly connected, and the placing frame on front side of screw and suction apparatus for ash by being fixedly connected.
Preferably, the cell wall up and down of the elongated slot offers track groove, and limited block is equipped in track groove, limits described in two groups
The opposite of position block is vertical with the side wall of fixed block to be fixedly connected, and the free gear is connect with the first spline engagement, and activity
The two sides notch of slot is fixed with baffle.
Preferably, embedded groove is offered on the downside of the suction cinder box, and chalk ash collection case is equipped in the embedded groove, it is described
The bakie to match with chalk dust is offered on the downside of rectangular transverse tube, the upper end of the chalk ash collection case extends in bakie,
And the lateral wall of chalk ash collection case is bonded with the cell wall of bakie.
Preferably, the two sides cell wall of the embedded groove offers two groups of symmetrical locating slots, the chalk ash collection case
Side wall offers two groups of symmetrically stealthy slots, and the opposite of two groups of stealth slots offers gear grooved, is equipped in the gear grooved
Rotate gear, the stealth slot is interior to be equipped with inserted link, and the opposite of inserted link described in two groups is fixed with the second spline, the turning gear
Wheel is connect with the second spline engagement.
Preferably, the unidirectional ventilating board offers ventilation hole, the ventilation hole and filtering with side similar in filter screen
Sealing plate is equipped between net, the upside of the sealing plate is flexibly connected by pin shaft with the upside of ventilation hole.
Preferably, the interior of the placing frame is equipped with cylindrical brush, the upper and lower side of the cylindrical brush and placing frame
Upper and lower inner wall is flexibly connected, and the lower end of the placing frame is equipped with rotating bar, the upper end of the rotating bar and cylindrical brush vertically
Lower middle side part be vertically fixedly connected.
Preferably, the downside of the chalk ash collection case is equipped with cylindrical bar, and chalk ash collection is run through in the upper end of cylindrical bar
The bottom of case is vertical with the lower middle side part of rotate gear to be fixedly connected, and the downside for inhaling cinder box is equipped with poke rod vertically, described
The upper end of poke rod is fixedly connected with the lower vertical for inhaling cinder box.
Preferably, the downside of the rectangular vertical tube is equipped with fang platform type frame, and under the upside of fang platform type frame and rectangular vertical tube
Side is fixedly connected.
Preferably, the upside for inhaling cinder box is equipped with cover board, and the two sides lower end of cover board is fixed with inserted block, the suction ash
Slot is offered on the upside of case, the two sides cell wall of the slot offers limiting slot, and the side wall of the inserted block offers empty slot, and
Strip groove is offered between empty slot, positive stop strip is equipped in the empty slot, and the lower end of the positive stop strip and the cell wall activity of empty slot connect
It connects, the upper end of the positive stop strip is fixedly connected by spring with strip groove, and the upside of the cover board is equipped with round bar, and under round bar
End is in cover board to strip groove, and the both ends of the round bar are equipped with belt, and belt is located in strip groove, and the two of the belt
End is fixedly connected with the side wall of the side wall of positive stop strip and round bar respectively.
Preferably, the side of the rotating bar is equipped with L-type plate, the fixed company in one end of the L-type plate and the lower end of rotating bar
It connects, and the left side lower end of placing frame offers turn trough, and the other end of L-type plate is located in turn trough.
Compared with prior art, the beneficial effects of the present invention are:
1. moving horizontally dust exhaust apparatus and displaying device by mobile device, chalk dust is absorbed convenient for dust exhaust apparatus,
And to show that device can be with horizontal adjustment position convenient for viewing；
2. the setting of cylindrical brush can be in order to wipe the dust on display screen, and the setting of rotating bar is so that work as display screen
When position dust is more, rotating bar can be stirred, cylindrical brush is allowed to rotate wiping display screen；
3. the rotate gear and inserted link of chalk ash collection case are arranged so that rotate gear rotates, inserted link can inject locating slot,
It places chalk ash collection case and reaches locating effect.
Detailed description of the invention
Fig. 1 is mobile device structural schematic diagram of the present invention；
Fig. 2 is that the present invention inhales apparatus for ash structural schematic diagram；
Fig. 3 is that the present invention shows apparatus structure schematic diagram；
Fig. 4 is the structural schematic diagram in chalk ash collection bottom of the present invention portion；
Fig. 5 is the structural schematic diagram of the unidirectional ventilating board of the present invention
Fig. 6 is cover board of the present invention and the connection schematic diagram for inhaling cinder box.
In figure: 1 mobile device, 101 loose slots, 102 elongated slots, 103 free gears, 104 fixed blocks, 105 first splines,
106 baffles, 107 wall fixing plates, 2 are inhaled apparatus for ash, 201 suction cinder boxes, 202 rectangular vertical tubes, 203 rectangular transverse tubes, 204 chalk dusts and are received
Header, 205 filter screens, 206 unidirectional ventilating boards, 207 motion bars, 208 movable plates, 209 motor, 210 rotating circular discs, 211 pendulum
Lever, 212 poke rods, 213 second splines, 214 inserted links, 215 rotate gears, 3 show device, 301 display screens, 302 cylinders
Hairbrush, 303 rotating bars.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-6 is please referred to, the present invention provides a kind of technical solution: a kind of culture displaying device of classroom sucking chalk powder,
It including mobile device 1, inhales apparatus for ash 2 and shows device 3, mobile device 1 includes wall fixing plate 107, and wall fixing plate 107 is logical
It crosses screw to be fixedly connected with wall, the front side horizontal of wall fixing plate 107 offers elongated slot 102, and the inside of elongated slot 102 is horizontal
Loose slot 101 is offered, the slot bottom of loose slot 101 is fixed with the first spline of multiple groups 105, and the first spline 105 is evenly distributed
It is equipped with free gear 103 vertically in the slot bottom of loose slot 101, loose slot 101, the front side of free gear 103 is equipped with fixed block
104, and by being flexibly connected in the middle part of pin shaft and the front side of free gear 103 in the middle part of the rear side of fixed block 104, fixed block 104
Front side, which is fixed with, inhales apparatus for ash 2；
Inhaling apparatus for ash 2 includes to inhale cinder box 201, inhales and is equipped with rectangular vertical tube 202, the upside of rectangular vertical tube 202 in cinder box 201 vertically
Closing, and 202 side horizontal of rectangular vertical tube is equipped with rectangular transverse tube 203, the side of the side of rectangular transverse tube 203 and rectangular vertical tube 202
Wall is vertically fixedly connected, and the inside of rectangular transverse tube 203 is equipped with filter screen 205, and the outside upright of filter screen 205 is equipped with unidirectional ventilation
Plate 206, rectangular transverse tube 203 are equipped with movable plate 208 far from the side of rectangular vertical tube 202, and the front side of movable plate 208 offers cross
Slot, and reciprocating block is equipped in translot, the inner wall for inhaling cinder box 201 has been screwed motor 209, the front side of motor 209
Be fixed with rotating circular disc 210, between rotating circular disc 210 and movable plate 208 be equipped with oscillating rod 211, one end of oscillating rod 211 with
The front side of rotating circular disc 210 is flexibly connected, and the other end of oscillating rod 211 and reciprocating block are flexibly connected, reciprocating block and unidirectional
It is horizontal between ventilating board 206 to be equipped with motion bar 207, the both ends of motion bar 207 respectively with the side wall of reciprocating block and unidirectional ventilating board
It is fixedly connected in the middle part of 206 side walls, the front side for inhaling cinder box 201, which is fixed with, shows device 3；
Show that device 3 includes placing frame and display screen 301, display screen 301 is located in placing frame, and the side wall of display screen 301 and
The inner wall of placing frame is fixedly connected, and placing frame is fixedly connected by screw with the front side for inhaling apparatus for ash 2.
Further, the cell wall up and down of elongated slot 102 offers track groove, and limited block, two groups of limits are equipped in track groove
The opposite of block is vertical with the side wall of fixed block 104 to be fixedly connected, and free gear 103 engages connection with the first spline 105, and living
The two sides notch of dynamic slot 101 is fixed with baffle 106, and the setting of track groove and limited block prevents fixed block 104 to be detached from elongated slot,
It prevents from inhaling the shaking of apparatus for ash 2.
Further, the downside for inhaling cinder box 201 offers embedded groove, is equipped with chalk collecting box 204, rectangular cross in embedded groove
The downside of pipe 203 offers the bakie to match with chalk dust, and the upper end of chalk collecting box 204 extends in bakie, and chalk
The lateral wall of collecting box 204 is bonded with the cell wall of bakie, and the setting of chalk ash collection case 204 can make the chalk dust drunk up
Chalk ash collection case can be fallen into.
Further, the two sides cell wall of embedded groove offers two groups of symmetrical locating slots, and the side wall of chalk collecting box 204 is opened
Equipped with two groups of symmetrical stealthy slots, and the opposite of two groups of stealth slots offers gear grooved, is equipped with rotate gear in gear grooved
215, be equipped with inserted link 214 in stealthy slot, the opposite of two groups of inserted links 214 is fixed with the second spline 213, rotate gear 215 with
The engagement connection of second spline 213, it is described to turn rotate gear 215, so that rotate gear 215 drives inserted link 214 mobile, so that inserting
Bar 214 injects in locating slot, so that chalk ash collection case 204 can achieve locating effect.
Further, unidirectional ventilating board 206 offers ventilation hole, ventilation hole and filtering with side similar in filter screen 205
Sealing plate is equipped between net 205, the upside of sealing plate is flexibly connected by pin shaft with the upside of ventilation hole, and such setting is so that unidirectional
Ventilating board 206 can achieve unidirectional ventilation effect when moving reciprocatingly.
Further, the interior of placing frame is equipped with cylindrical brush 302, the upper and lower side of cylindrical brush 302 and placing frame
Upper and lower inner wall is flexibly connected, and the lower end of placing frame is equipped with rotating bar 303, the upper end of rotating bar 303 and cylindrical brush 302 vertically
Lower middle side part be vertically fixedly connected, mobile cylindrical brush 302 can wipe display screen 301, and rotate cylindrical brush 302
So that can be wiped repeatedly when the bad wiping of 301 somewhere foul of display screen.
Further, the downside of chalk collecting box 204 is equipped with cylindrical bar, and chalk collecting box is run through in the upper end of cylindrical bar
204 bottom is vertical with the lower middle side part of rotate gear 215 to be fixedly connected, and the downside for inhaling cinder box 201 is equipped with poke rod vertically
212, the upper end of poke rod 212 is fixedly connected with the lower vertical for inhaling cinder box 201, holds poke rod 212 convenient for stirring suction ash dress
Set 2.
Further, the downside of rectangular vertical tube 202 is equipped with fang platform type frame, and the upside of fang platform type frame and rectangular vertical tube 202
Downside be fixedly connected, rectangular vertical tube 202 is communicated with the outside world by fang platform type frame, and the setting of fang platform type frame is so that device inhales ash
Range increases.
Further, the upside for inhaling cinder box 201 is equipped with cover board, and the two sides lower end of cover board is fixed with inserted block, inhales cinder box
201 upside offers slot, and the two sides cell wall of slot offers limiting slot, and the side wall of inserted block offers empty slot, and empty slot it
Between offer strip groove, positive stop strip is equipped in empty slot, the lower end of positive stop strip is flexibly connected with the cell wall of empty slot, the upper end of positive stop strip
It is fixedly connected by spring with strip groove, the upside of cover board is equipped with round bar, and the lower end of round bar is in cover board to strip groove, round
The both ends of bar are equipped with belt, and belt is located in strip groove, the both ends of the belt side with the side wall of positive stop strip and round bar respectively
Wall is fixedly connected, and convenient for the installing and dismounting of cover board, repairing inside device is checked.
Further, the side of rotating bar 303 is equipped with L-type plate, the fixed company in one end of L-type plate and the lower end of rotating bar 303
It connects, and the left side lower end of placing frame offers turn trough, and the other end of L-type plate is located in turn trough, convenient for determining for rotating bar 303
Position.
Use principle: sliding poke rod 212, free gear 103 engage connection with the first spline 105, so that inhaling apparatus for ash 2
It can move on the mobile device 1, the setting of baffle 106 is to limit the freedom degree for inhaling apparatus for ash 2, and inhaling apparatus for ash 2 is by inhaling ash
Case 201 and case inner part composition, wherein motor 209 drives rotating circular disc 210 to rotate, so that motion bar 207 moves reciprocatingly,
So that unidirectional ventilating board 206 can be with air draught, wherein rectangular vertical tube 202 is expanded by the effect of fang platform type frame inhales grey range, chalk
The rotate gear 215 of 204 downside of grey collecting box rotates, so that inserted link 214, which blocks, inhales cinder box 201, reaches locating effect, under cover board
The inserted block of side injects in slot, so that positive stop strip is popped up by spring, so that positive stop strip blocks limiting slot, and rotates round bar, so that
Belt recycles positive stop strip, so that positive stop strip sticks into empty slot, convenient for the installing and dismounting of cover board, wherein L-type board, can into turn trough
The position of cylindrical brush 302 is limited, unidirectional ventilating board 206 offers ventilation hole, ventilation hole with side similar in filter screen 205
Sealing plate is equipped between filter screen 205, the upside of sealing plate is flexibly connected by pin shaft with the upside of ventilation hole, and such setting makes
Unidirectional ventilating board 206 is obtained when moving reciprocatingly, can unidirectionally be divulged information.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of culture of classroom sucking chalk powder shows device, including mobile device (1), suction apparatus for ash (2) and displaying device
(3), it is characterised in that: the mobile device (1) includes wall fixing plate (107), and the wall fixing plate (107) passes through screw
It is fixedly connected with wall, the front side horizontal of the wall fixing plate (107) offers elongated slot (102), and the inside of elongated slot (102)
Level offers loose slot (101), and the slot bottom of the loose slot (101) is fixed with the first spline of multiple groups (105), and the first flower
Key (105) is evenly arranged in the slot bottom of loose slot (101), is equipped with free gear (103) vertically in the loose slot (101), institute
The front side for stating free gear (103) is equipped with fixed block (104), and passes through pin shaft and movable teeth in the middle part of the rear side of fixed block (104)
It takes turns and is flexibly connected in the middle part of the front side of (103), be fixed on front side of the fixed block (104) and inhale apparatus for ash (2)；
The suction apparatus for ash (2) includes to inhale cinder box (201), is equipped with rectangular vertical tube (202) vertically in the suction cinder box (201),
And rectangular vertical tube (202) side horizontal is equipped with rectangular transverse tube (203), the side of the rectangular transverse tube (203) and rectangular vertical tube
(202) side wall is vertically fixedly connected, and the inside of the rectangular transverse tube (203) is equipped with filter screen (205), the filter screen
(205) outside upright is equipped with unidirectional ventilating board (206), and the rectangular transverse tube (203) sets far from the side of rectangular vertical tube (202)
Have movable plate (208), translot is offered on front side of the movable plate (208), and be equipped with reciprocating block, the suction cinder box in translot
(201) inner wall has been screwed motor (209), is fixed with rotating circular disc on front side of the motor (209)
(210), oscillating rod (211) are equipped between the rotating circular disc (210) and movable plate (208), one end of the oscillating rod (211)
It is flexibly connected with the front side of rotating circular disc (210), and the other end of oscillating rod (211) and reciprocating block are flexibly connected, it is described past
Horizontal between multiblock and unidirectional ventilating board (206) to be equipped with motion bar (207), the both ends of the motion bar (207) are respectively and back and forth
It is fixedly connected in the middle part of the side wall of block and unidirectional ventilating board (206) side wall, displaying dress is fixed on front side of the suction cinder box (201)
Set (3)；
The displaying device (3) includes placing frame and display screen (301), and the display screen (301) is located in placing frame, and is shown
The side wall of screen (301) is fixedly connected with the inner wall of placing frame, and the placing frame is fixed by screw with the front side for inhaling apparatus for ash (2)
Connection.
2. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: the elongated slot
(102) cell wall up and down offers track groove, and limited block, the opposite and fixation of limited block described in two groups are equipped in track groove
The side wall of block (104) is vertically fixedly connected, and the free gear (103) engages connection, and loose slot with the first spline (105)
(101) two sides notch is fixed with baffle (106).
3. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: the suction ash
Embedded groove is offered on the downside of case (201), is equipped with chalk collecting box (204) in the embedded groove, the rectangular transverse tube (203)
Downside offers the bakie to match with chalk ash collection case (204), and the upper end of the chalk collecting box (204) extends to bakie
It is interior, and the lateral wall of chalk collecting box (204) is bonded with the cell wall of bakie.
4. a kind of culture of classroom sucking chalk powder according to claim 3 shows device, it is characterised in that: the insertion
The two sides cell wall of slot offers two groups of symmetrical locating slots, the side wall of the chalk collecting box (204) offer two groups it is symmetrical
Stealthy slot, and the opposite of two groups of stealth slots offers gear grooved, is equipped with rotate gear (215) in the gear grooved, it is described hidden
Inserted link (214) are equipped in shape slot, the opposite of inserted link described in two groups (214) is fixed with the second spline (213), the turning gear
It takes turns (215) and engages connection with the second spline (213).
5. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: described unidirectional
Side similar in ventilating board (206) and filter screen (205) offers ventilation hole, sets between the ventilation hole and filter screen (205)
There is sealing plate, the upside of the sealing plate is flexibly connected by pin shaft with the upside of ventilation hole.
6. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: the placement
The interior of frame is equipped with cylindrical brush (302), and the activity of inner wall up and down of the upper and lower side and placing frame of the cylindrical brush (302) connects
It connects, the lower end of the placing frame is equipped with rotating bar (303) vertically, the upper end and cylindrical brush (302) of the rotating bar (303)
Lower middle side part be vertically fixedly connected.
7. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: the chalk
The downside of collecting box (204) is equipped with cylindrical bar, and the bottom of chalk collecting box (204), and cylindrical bar are run through in the upper end of cylindrical bar
Upper end it is vertical with the lower middle side part of rotate gear (215) be fixedly connected, the downside for inhaling cinder box (201) is equipped with stirs vertically
Bar (212), the upper end of the poke rod (212) are fixedly connected with the lower vertical for inhaling cinder box (201).
8. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: described rectangular
The downside of vertical tube (202) is equipped with fang platform type frame, and is fixedly connected on the downside of the upside of fang platform type frame and rectangular vertical tube (202).
9. a kind of culture of classroom sucking chalk powder according to claim 1 shows device, it is characterised in that: the suction ash
The upside of case (201) is equipped with cover board, and the two sides lower end of cover board is fixed with inserted block, opens up on the upside of the suction cinder box (201)
There is slot, the two sides cell wall of the slot offers limiting slot, and the side wall of the inserted block offers empty slot, and opens up between empty slot
There is strip groove, is equipped with positive stop strip in the empty slot, the lower end of the positive stop strip is flexibly connected with the cell wall of empty slot, the positive stop strip
Upper end be fixedly connected by spring with strip groove, the upside of the cover board is equipped with round bar, and the lower end of round bar through cover board extremely
In strip groove, the both ends of the round bar are equipped with belt, and belt is located in strip groove, the both ends of the belt respectively with limit
The side wall of item is fixedly connected with the side wall of round bar.
10. a kind of culture of classroom sucking chalk powder according to claim 6 shows device, it is characterised in that: described turn
The side of lever (303) is equipped with L-type plate, and one end of the L-type plate is fixedly connected with the lower end of rotating bar (303), and placing frame
Left side lower end offer turn trough, and the other end of L-type plate is located in turn trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789955.8A CN108944198A (en) | 2018-07-18 | 2018-07-18 | A kind of culture displaying device of classroom sucking chalk powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789955.8A CN108944198A (en) | 2018-07-18 | 2018-07-18 | A kind of culture displaying device of classroom sucking chalk powder |
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| Publication Number | Publication Date |
|---|---|
| CN108944198A true CN108944198A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810789955.8A Withdrawn CN108944198A (en) | 2018-07-18 | 2018-07-18 | A kind of culture displaying device of classroom sucking chalk powder |
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Application publication date: 20181207 |