CN108973455A - It is a kind of to facilitate the English teaching blackboard for writing English word - Google Patents
It is a kind of to facilitate the English teaching blackboard for writing English word Download PDFInfo
- Publication number
- CN108973455A CN108973455A CN201810887045.3A CN201810887045A CN108973455A CN 108973455 A CN108973455 A CN 108973455A CN 201810887045 A CN201810887045 A CN 201810887045A CN 108973455 A CN108973455 A CN 108973455A
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- CN
- China
- Prior art keywords
- sliding
- fixedly connected
- blackboard
- shaft
- support
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/004—Manual lettering devices
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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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
- B43L13/04—Guides for rulers
- B43L13/041—Guides for rulers with toothed racks
Landscapes
- Drawing Aids And Blackboards (AREA)
- Brushes (AREA)
Abstract
The present invention relates to English teaching blackboard fields, more particularly to a kind of English teaching blackboard for facilitating writing English word.Including blackboard, transverse slide, longitudinal sliding motion device, pressing device, linkage brush pedestal and linkage brush, the blackboard includes blackboard plate body, sideslip bar I, sideslip bar II and blackboard bracket, sideslip bar II and sideslip bar I are respectively fixedly connected with the upper and lower ends in blackboard plate body, blackboard branch is provided with two, and two blackboard brackets are respectively fixedly connected at the both ends of blackboard plate body rear end；The present invention equidistant can adjust the distance between each brush head by adjusting the knob that linkage paints, line width is set to reach the width of needs and wide, after adjusting linkage brush to desired height by longitudinal sliding motion device, neat four lines, three lattice of a row can be drawn out by sliding laterally linkage brush by transverse slide, solve the problems, such as to need four lines, three lattice that are laborious and drawing when four three lattice of line of manual drawing irregular using English teacher when traditional blackboard.
Description
Technical field
The present invention relates to English teaching blackboard fields, facilitate the English teaching for writing English word black more particularly to a kind of
Plate.
Background technique
Such as number of patent application is a kind of three line lattice blackboard of English teaching of CN201720081908.9, the fixed bottom of blackboard
Plate is provided with marker wrote fixed plate, and the edge setting of the fixed bottom plate of blackboard on the surface of the fixed bottom plate of the blackboard
There is fixing bolt, three line ruling of English, and marker wrote fixed plate are provided on the surface of the marker wrote fixed plate
Side be provided with rotation hinge, the side for rotating hinge is provided with marker wrote movable plate, and the marker wrote is mobile
The side of plate is provided with movable plate handle.The line lattice of English are set up directly in marker wrote fixed plate by the utility model,
Line width can not be adjusted according to actual needs, and the English line lattice in marker wrote fixed plate will affect the use of Other subjects,
Limitation is very big, therefore designs a kind of English teaching blackboard for facilitating and writing English word.
Summary of the invention
The object of the present invention is to provide a kind of English teaching blackboards for facilitating writing English word, can be black by linkage brush
Four lines, three lattice are drawn in desired position on plate, by adjust linkage brush brush head can equidistant adjusting line width according to actual needs,
And four lines, three lattice drawn are erasable after the completion of use, Other subjects using when linkage brush can be slided to by carriage
One end does not influence Other subjects and uses blackboard.
The purpose of the present invention is achieved through the following technical solutions:
It is a kind of to facilitate the English teaching blackboard for writing English word, including blackboard, transverse slide, longitudinal sliding motion dress
Set, pressing device, linkage brush pedestal and linkage brush, the blackboard includes blackboard plate body, sideslip bar I, sideslip bar II and blackboard
Bracket, sideslip bar II and sideslip bar I are respectively fixedly connected with the upper and lower ends in blackboard plate body, and blackboard branch is provided with two, two
Blackboard bracket is respectively fixedly connected with the both ends in blackboard plate body rear end；
The transverse slide includes cross slider I, cross slider II and longitudinal slide bar, there are two longitudinal slide bar is set, two
The both ends of a longitudinal direction slide bar are respectively fixedly connected with the both ends in I inside of cross slider II and cross slider, and cross slider I is slidably connected
On sideslip bar I, cross slider II is slidably connected on sideslip bar II；
The longitudinal sliding motion device includes longitudinal sliding block, door word clamp shaft, screw bolt seat, rotary screw, crank and longitudinal direction
Slide opening, door word clamp shaft are slidably connected in longitudinal sliding block, and screw bolt seat is fixedly connected on longitudinal sliding block, rotary screw
One end is fixedly connected with a crank, and the other end of rotary screw, which is rotatably assorted, to be connected in screw bolt seat, and the front end of rotary screw is logical
It crosses and is threaded in a word clamp shaft, there are two longitudinal slide opening is set, two longitudinal slide openings are separately positioned on the two of longitudinal sliding block
End, two longitudinal slide openings run through longitudinal sliding block, and the rear end of door word clamp shaft is inserted into respectively in two longitudinal slide openings, two longitudinal directions
Slide opening is slidably connected respectively on two longitudinal slide bars；
The pressing device includes connecting plate I, connecting plate II, limited post, spring stack and compressed spring, and limited post is equipped with two
A, one end of two limited posts is respectively fixedly connected at the both ends of connecting plate I, the other end of the two limited posts company of being slidably matched respectively
It connects at the both ends of connecting plate II, one end of spring stack is fixedly connected on the middle-end of connecting plate I, the other end sliding connection of spring stack
In the middle-end of connecting plate II, one end of connecting plate II is fixedly connected on longitudinal sliding block, and the other end of connecting plate I is fixedly connected on linkage
On brush pedestal, spring stack is equipped with a compressed spring, and compressed spring is arranged between connecting plate I and connecting plate II；
The linkage brush pedestal includes support plate, shaft sliding slot, bristle holder slot, adjusts strut, knob, rocker arm I, shakes
Arm II, fastening screw, stationary rack, guiding ladder-shaped slot and support dovetail groove, it is sliding that the middle-end of support plate is fixedly connected with a shaft
Slot, bristle holder slot are fixedly connected on one end of support plate, and the other end of support plate is equipped with a support dovetail groove, support plate
Middle-end is fixedly connected with an adjusting strut, adjusts strut setting between shaft sliding slot and support dovetail groove, knob is slidably matched
It is connected to and adjusts on strut, shake hands vertical with support plate, the front end of rocker arm I and rocker arm II is hinged on knob, fastening screw
It being threadedly attached in and adjusts in strut, for the medial roof of fastening screw on knob, support plate is fixedly connected with two stationary racks,
The inside of two stationary racks is bonded with the two sides of shaft sliding slot respectively, is set in support plate there are two guiding ladder-shaped slot, two are led
The both ends for adjusting strut are separately positioned on to dovetail groove, being equidistant between two dovetail grooves and shaft sliding slot, support plate is equipped with
One end of support dovetail groove is fixedly connected on connecting plate I；
The linkage brush includes sliding axle, gasket, outer gear ring, drive pulley I, shaft, drive pulley II, gear, biography
Carry-over bar, rack frame, guide runner, bristle holder, connecting shaft, sliding support, brush head, chalk, connecting rod and support rod, sliding
One end of axis is fixedly connected on one end of gasket, and connecting shaft is fixedly connected on the other end of gasket, and the other end of sliding axle is fixed
A drive pulley I is connected, there are two outer gear ring is set, two outer gear rings are fixedly connected on sliding axle, and two outer gear rings are set
It sets between gasket and drive pulley I, drive pulley II is fixedly connected on one end of shaft, and gear is fixedly connected on the another of shaft
One end, drive pulley I and drive pulley II are cooperatively connected by V belt translation, and one end of two rack frames, which is respectively fixedly connected with, to be passed
The both ends of carry-over bar, gear and driving rack engaged transmission, the other end of two rack frames are respectively fixedly connected in guide runner
Both ends, one end of bristle holder is fixedly connected on rack frame on the outside, and there are two brush head is set, equal interference is matched in two brush heads
A piece chalk of connection is closed, a brush head is fixedly connected on the other end of bristle holder, another brush head is fixedly connected on sliding branch
The other end of one end of frame, sliding support is equipped with fulcrum, and sliding support is rotatably assorted by fulcrum and is connected in connecting shaft, shaft
It is rotatably assorted and is connected to one end of connecting rod, connecting rod is arranged between drive pulley II and gear, and the other end of connecting rod is set
There is fulcrum, connecting rod is rotatably assorted by fulcrum to be connected on drive pulley I, and the outer end of shaft, which is rotatably assorted, is connected to support rod
On；
Sliding axle is slidably connected in shaft sliding slot, two outer gear rings stationary rack with shaft sliding slot two sides respectively
Engaged transmission, guide runner are slidably connected in guiding ladder-shaped slot at one end, and bristle holder is slidably connected in brush head
In bracket groove, sliding support is slidably connected in bristle holder slot, and bristle holder is located at sliding branch in bristle holder slot
The outside of frame, the bottom end sliding connection of support rod is in support dovetail groove；
There are two the linkage brush is set, two linkage brushes are symmetricly set on linkage brush pedestal, underlying linkage
The sliding axle of brush, which is rotatably assorted, is connected to the rear end of rocker arm I, and rocker arm I is arranged in the gasket of the linkage brush of lower section and close to pad
Between the outer gear ring of piece, the sliding axle for the linkage brush being located above, which is rotatably assorted, is connected to the rear end of rocker arm II, and rocker arm II is arranged
Positioned at the gasket of linkage brush above and between the outer gear ring of gasket.
The equal length of the rocker arm I and rocker arm II.
The diameter of I outer ring of drive pulley is two times of the diameter of II outer ring of drive pulley.
The outer gear ring is identical as the number of teeth of gear and modulus.
The driving rack is identical as the size of stationary rack.
The shaft sliding slot, bristle holder slot, stationary rack, guiding ladder-shaped slot and support dovetail groove are parallel to each other.
Beneficial effects of the present invention:
The present invention makes linkage brush that can adjust height and cross on blackboard by transverse slide and longitudinal sliding motion device
To sliding, pressing device is connected on linkage brush pedestal, and the chalk that linkage paints is withstood in blackboard surface version, is passed through when in use
Adjusting the knob that linkage paints equidistant can adjust the distance between each brush head, so that line width is reached the width of needs and wait
Width after adjusting linkage brush to desired height by longitudinal sliding motion device, slides laterally linkage brush by transverse slide
Neat four lines, three lattice of a row are drawn out, solve expense when needing four three lattice of line of manual drawing using English teacher when traditional blackboard
Power and the irregular problem of four lines, three lattice drawn；Linkage can be swiped to the one of blackboard when not needing to draw four three lattice of line
End avoids that Other subjects is interfered to use；In addition to this present invention can also be used needs to draw rectilinear strip in Chinese language, mathematics etc.
Subject in, also will use in the phonetic teaching of Chinese language to four lines, three lattice, in mathematical education, linkage brush four brush heads in
The chalk on wherein three brush heads is removed, can be drawn by linkage brush head by transverse slide and longitudinal sliding motion device single
Straight line draws square for mathematics teacher, and the shapes such as rectangle facilitate teachers ' teaching.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is part-structure enlarged diagram of the invention；
Fig. 3 is blackboard structure schematic diagram of the invention；
Fig. 4 is transverse slide structural schematic diagram of the invention；
Fig. 5 is longitudinal sliding motion apparatus structure schematic diagram of the invention；
Fig. 6 is the partial structure diagram of longitudinal sliding motion device of the invention；
Fig. 7 is longitudinal sliding block structural schematic diagram of the invention；
Fig. 8 is door word clamp shaft structural schematic diagram of the invention；
Fig. 9 is pressing device structural schematic diagram of the invention；
Figure 10 is linkage brush schematic diagram of base structure of the invention；
Figure 11 is the partial structure diagram of linkage brush pedestal of the invention；
Figure 12 is the structural schematic diagram one of linkage brush of the invention；
Figure 13 is the structural schematic diagram two of linkage brush of the invention；
Figure 14 is the partial structure diagram one of linkage brush of the invention；
Figure 15 is the partial structure diagram two of linkage brush of the invention；
Figure 16 is the partial structure diagram three of linkage brush of the invention；
Figure 17 is the partial structure diagram four of linkage brush of the invention.
In figure: blackboard 1；Blackboard plate body 1-1；I 1-2 of sideslip bar；II 1-3 of sideslip bar；Blackboard bracket 1-4；Slide laterally dress
Set 2；I 2-1 of cross slider；II 2-2 of cross slider；Longitudinal slide bar 2-3；Longitudinal sliding motion device 3；Longitudinal sliding block 3-1；Door word clamp shaft 3-
2；Screw bolt seat 3-3；Rotary screw 3-4；Crank 3-5；Longitudinal slide opening 3-6；Pressing device 4；I 4-1 of connecting plate；II 4-2 of connecting plate；Limit
Column 4-3；Spring stack 4-4；Compressed spring 4-5；Link brush pedestal 5；Support plate 5-1；Shaft sliding slot 5-2；Bristle holder slot 5-3；
Adjust strut 5-4；Shake hands 5-5；I 5-6 of rocker arm；II 5-7 of rocker arm；Fastening screw 5-8；Stationary rack 5-9；Guiding ladder-shaped slot 5-
10；Support dovetail groove 5-11；Linkage brush 6；Sliding axle 6-1；Gasket 6-2；Outer gear ring 6-3；I 6-4 of drive pulley；Shaft 6-5；It passes
II 6-6 of movable belt pulley；Gear 6-7；Driving rack 6-8；Rack frame 6-9；Guide runner 6-10；Bristle holder 6-11；Connecting shaft 6-
12；Sliding support 6-13；Brush head 6-14；Chalk 6-15；Connecting rod 6-16；Support rod 6-17.
Specific embodiment
Invention is further described in detail by 1-17 with reference to the accompanying drawing.
Specific embodiment 1:
It is a kind of to facilitate the English teaching blackboard for writing English word as shown in Fig. 1-17, including blackboard 1, slide laterally dress
Set 2, longitudinal sliding motion device 3, pressing device 4, linkage brush pedestal 5 and linkage brush 6, the blackboard 1 include blackboard plate body 1-1,
I 1-2 of sideslip bar, II 1-3 of sideslip bar and blackboard bracket 1-4, II 1-3 of sideslip bar and I 1-2 of sideslip bar are respectively fixedly connected in blackboard
The upper and lower ends of plate body 1-1, there are two blackboard bracket 1-4 is set, two blackboard bracket 1-4 are respectively fixedly connected in blackboard plate body 1-
The both ends of 1 rear end；Two blackboard bracket 1-4 can support blackboard plate body 1-1 on the ground.
The transverse slide 2 includes I 2-1 of cross slider, II 2-2 of cross slider and longitudinal slide bar 2-3, longitudinal slide bar 2-
3 set there are two, the both ends of two longitudinal slide bar 2-3 are respectively fixedly connected with two on the inside of I 2-1 of II 2-2 of cross slider and cross slider
End, I 2-1 of cross slider are slidably connected on I 1-2 of sideslip bar, and II 2-2 of cross slider is slidably connected in II 1-3 of sideslip bar
On；Through I 2-1 of cross slider sliding connection on I 1-2 of sideslip bar, II 2-2 of cross slider is slidably connected in sideslip bar II
1-3 slide laterally transverse slide 2 can on blackboard 1, and transverse direction of the transverse slide 2 on blackboard 1 is adjusted with this
Position.
The longitudinal sliding motion device 3 includes longitudinal sliding block 3-1, door word clamp shaft 3-2, screw bolt seat 3-3, rotary screw 3-
4, crank 3-5 and longitudinal slide opening 3-6, door word clamp shaft 3-2 are slidably connected in longitudinal sliding block 3-1, and screw bolt seat 3-3 is fixed
It is connected on longitudinal sliding block 3-1, one end of rotary screw 3-4 is fixedly connected with a crank 3-5, the other end of rotary screw 3-4
It is rotatably assorted and is connected in screw bolt seat 3-3 by rolling bearing units, the front end of rotary screw 3-4 is threadedly attached in a word and clamps
In axis 3-2, there are two longitudinal slide opening 3-6 is set, two longitudinal direction slide opening 3-6 are separately positioned on the both ends of longitudinal sliding block 3-1, and two vertical
Run through longitudinal sliding block 3-1 to slide opening 3-6, the rear end of door word clamp shaft 3-2 is inserted into respectively in two longitudinal slide opening 3-6, and two
Longitudinal slide opening 3-6 is slidably connected respectively on two longitudinal slide bar 2-3；It is slided respectively by longitudinal slide opening 3-6 at both ends
Dynamic be cooperatively connected can make longitudinal sliding block 3-1 longitudinal sliding motion in transverse slide 2 on longitudinal slide bar 2-3 at both ends, with this
I.e. adjustable lengthwise position of the longitudinal sliding block 3-1 in transverse slide 2, adjusts position to the required position of longitudinal sliding block 3-1
It postpones, rotates crank 3-5, rotate rotary screw 3-4, rotary screw 3-4 is pushed away by the threaded connection with door word clamp shaft 3-2
The forward ends thereof longitudinal direction slide bar 2-3 of dynamic door word clamp shaft 3-2, the bottom end of door word clamp shaft 3-2 are designed as arc, it is possible to increase with it is vertical
It can will be indulged by frictional force to the contact area of slide bar 2-3 as the forward ends thereof longitudinal direction slide bar 2-3 of door word clamp shaft 3-2
It is fixed on a word clamp shaft 3-2 to sliding block 3-1.
The pressing device 4 includes I 4-1 of connecting plate, II 4-2 of connecting plate, limited post 4-3, spring stack 4-4 and compressed spring 4-
5, there are two limited post 4-3 is set, one end of two limited post 4-3 is respectively fixedly connected in the both ends of I 4-1 of connecting plate, two limits
The other end of column 4-3 is slidably connected respectively at the both ends of II 4-2 of connecting plate, and one end of spring stack 4-4 is fixedly connected on connecting plate I
The other end of the middle-end of 4-1, spring stack 4-4 is slidably connected in the middle-end of II 4-2 of connecting plate, and one end of II 4-2 of connecting plate is solid
Surely it is connected on longitudinal sliding block 3-1, the other end of I 4-1 of connecting plate is fixedly connected on linkage brush pedestal 5, and spring stack 4-4 is equipped with
One compressed spring 4-5, compressed spring 4-5 are arranged between II 4-2 of I 4-1 of connecting plate and connecting plate；II 4-2 of connecting plate is fixedly connected
After longitudinal sliding block 3-1, compressed spring 4-5 will be applied to thrust of I 4-1 of connecting plate towards blackboard plate body 1-1, and I 4-1 of connecting plate is fixed
It is connected on linkage brush pedestal 5, with this brush pedestal 5 that makes to link by the thrust towards blackboard plate body 1-1.Need mobile linkage brush
When pedestal 5, pull-off spring column 4-4 can be such that linkage brush pedestal 5 is lifted, and linkage brush 6 is made to leave blackboard, will not be on blackboard
Continue to draw line.
The linkage brush pedestal 5 include support plate 5-1, shaft sliding slot 5-2, bristle holder slot 5-3, adjust strut 5-4,
Knob 5-5, I 5-6 of rocker arm, II 5-7 of rocker arm, fastening screw 5-8, stationary rack 5-9, guiding ladder-shaped slot 5-10 and support dovetail groove
5-11, the middle-end of support plate 5-1 are fixedly connected with a shaft sliding slot 5-2, and bristle holder slot 5-3 is fixedly connected on support plate 5-1
One end, the other end of support plate 5-1 is equipped with a support dovetail groove 5-11, and the middle-end of support plate 5-1 is fixedly connected with a tune
Strut 5-4 is saved, adjusts strut 5-4 setting between shaft sliding slot 5-2 and support dovetail groove 5-11, knob 5-5 is slidably matched company
It connects on adjusting strut 5-4, knob 5-5 is vertical with support plate 5-1, and the front end 5-7 of I 5-6 of rocker arm and rocker arm II is hinged on drawing
On hand 5-5, fastening screw 5-8, which is threadedly attached in, to be adjusted in strut 5-4, and the medial roof of fastening screw 5-8 is in knob 5-5
On, support plate 5-1 is fixedly connected with two stationary rack 5-9, and the inside of two stationary rack 5-9 is respectively with shaft sliding slot 5-2's
Two sides are bonded, and are set to be separately positioned on to adjust there are two guiding ladder-shaped slot 5-10, two guiding ladder-shaped slot 5-10 on support plate 5-1 and be propped up
The both ends of bar 5-4, being equidistant between two dovetail groove 5-10 and shaft sliding slot 5-2, support plate 5-1 are equipped with support dovetail groove 5-
11 one end is fixedly connected on I 4-1 of connecting plate；Knob 5-5 can be slided adjusting in strut 5-4, the position of up and down adjustment knob 5-5
It postpones, tightening fastening screw 5-8 on adjusting strut 5-4 makes the medial roof of fastening screw 5-8 strain at hand 5-5, can will shake hands
The position of 5-5 is fixed.
The linkage brush 6 includes sliding axle 6-1, gasket 6-2, outer gear ring 6-3, I 6-4 of drive pulley, shaft 6-5, passes
II 6-6 of movable belt pulley, gear 6-7, driving rack 6-8, rack frame 6-9, guide runner 6-10, bristle holder 6-11, connecting shaft 6-
12, sliding support 6-13, brush head 6-14, chalk 6-15, connecting rod 6-16 and support rod 6-17, one end of sliding axle 6-1 are fixed
It is connected to one end of gasket 6-2, connecting shaft 6-12 is fixedly connected on the other end of gasket 6-2, and the other end of sliding axle 6-1 is fixed
I 6-4 of drive pulley is connected, there are two outer gear ring 6-3 is set, two outer gear ring 6-3 are fixedly connected on sliding axle 6-1,
Two outer gear ring 6-3 are arranged between I 6-4 of gasket 6-2 and drive pulley, and II 6-6 of drive pulley is fixedly connected on shaft 6-5's
One end, gear 6-7 are fixedly connected on the other end of shaft 6-5, and I 6-4 of drive pulley and II 6-6 of drive pulley is matched by V belt translation
Connection is closed, one end of two rack frame 6-9 is respectively fixedly connected in the both ends of driving rack 6-8, gear 6-7 and driving rack 6-
8 engaged transmissions, the other end of two rack frame 6-9 are respectively fixedly connected in the both ends of guide runner 6-10, bristle holder 6-11
One end be fixedly connected on rack frame 6-9 on the outside, there are two brush head 6-14 is set, interference fit connects in two brush head 6-14
It meets chalk a 6-15, a brush head 6-14 and is fixedly connected on the other end of bristle holder 6-11, another brush head 6-14 is fixed
It is connected to one end of sliding support 6-13, the other end of sliding support 6-13 is equipped with fulcrum, and the fulcrum of sliding support 6-13 passes through
Rolling bearing units, which are rotatably assorted, to be connected in connecting shaft 6-12, and shaft 6-5 is rotatably assorted by rolling bearing units is connected to connecting rod 6-
16 one end, connecting rod 6-16 are arranged between drive pulley II 6-6 and gear 6-7, and the other end of connecting rod 6-16 is equipped with branch
Axis, the fulcrum of connecting rod 6-16 is rotatably assorted by rolling bearing units to be connected on I 6-4 of drive pulley, and the outer end of shaft 6-5 passes through
Rolling bearing units, which are rotatably assorted, to be connected on support rod 6-17；
Sliding axle 6-1 be slidably connected in shaft sliding slot 5-2, two outer gear ring 6-3 respectively with shaft sliding slot 5-2 two
The stationary rack 5-9 engaged transmission of side, guide runner 6-10 are slidably connected in guiding ladder-shaped slot 5-10 at one end, brush head
Bracket 6-11 is slidably connected in bristle holder slot 5-3, and sliding support 6-13 is slidably connected in bristle holder slot 5-3
Interior, bristle holder 6-11 is located at the outside of sliding support 6-13 in bristle holder slot 5-3, and the bottom end sliding of support rod 6-17 is matched
Conjunction is connected in support dovetail groove 5-11；
There are two the linkage brush 6 is set, two linkage brushes 6 are symmetricly set on linkage brush pedestal 5, underlying
The sliding axle 6-1 of dynamic brush 6 is rotatably assorted by rolling bearing units is connected to the rear end of I 5-6 of rocker arm, and I 5-6 of rocker arm is arranged in down
Between the outer gear ring 6-3 of the gasket 6-2 and close gasket 6-2 of the linkage brush 6 of side, the sliding axle 6-1 for the linkage brush 6 being located above
It is rotatably assorted by rolling bearing units and is connected to the rear end of II 5-7 of rocker arm, II 5-7 of rocker arm setting is located at linkage brush 6 above
Between gasket 6-2 and the outer gear ring 6-3 of close gasket 6-2.When needing to adjust line width, the position of knob 5-5 is adjusted, shake hands 5-5
Shake II 5-7 of I 5-6 of arm and rocker arm by hinge strip, I 5-6 of rocker arm drives the sliding axle 6-1 of lower section sliding in shaft sliding slot 5-2
It is dynamic, since the outer gear ring 6-3 at both ends is engaged with stationary rack 5-9, so sliding axle 6-1 is by I 5-6 of rocker arm in shaft sliding slot 5-2
When being inside driven and moving, rotation can be generated, the rotation that sliding axle 6-1 is generated passes through I 6-4 V belt translation of drive pulley to transmission belt
II 6-6 is taken turns, I 6-4 of drive pulley and shaft 6-5 keeps spacing between the two to immobilize by connecting rod 6-16, sliding axle
When 6-1 is mobile, connecting rod 6-16 will drive shaft 6-5, and shaft 6-5 drives support rod 6-17 sliding in support dovetail groove 5-11
Dynamic, support rod 6-17 plays a supportive role to shaft 6-5 and can follow the movement of shaft 6-5 and move, and realizes mobile rocker arm I with this
5-6 drives sliding axle 6-1, and sliding axle 6-1 can be made mobile and rotated, sliding axle 6-1 drives shaft 6-5 by support rod 6-17
Mobile, the distance between sliding axle 6-1 and shaft 6-5 are fixed, pass I 6-4 of drive pulley on sliding axle 6-1 by band
It is dynamic to drive II 6-6 of drive pulley rotation；II 6-6 of drive pulley by shaft 6-5 band moving gear 6-7 rotate, gear 6-7 by with
The engaged transmission of driving rack 6-8 drives driving rack 6-8, and the both ends of driving rack 6-8 are fixedly connected with rack frame 6-9, tooth
Item frame 6-9 plays a supportive role to driving rack 6-8, and the guide runner 6-10 of two bottom ends rack frame 6-9 is in support dovetail groove 5-
Sliding in 11, driving rack 6-8 can be slided by guide runner 6-10 and rack frame 6-9 in support dovetail groove 5-11, gear
When 6-7 rotates, driving rack 6-8, driving rack 6-8 can be pushed to drive guide runner 6-10 by rack frame 6-9 by engagement
It is slided in support dovetail groove 5-11, rack frame 6-9 drives bristle holder 6-11 mobile, the front end of bristle holder 6-11 and sliding
Bracket 6-13 is slided in bristle holder slot 5-3, and sliding support 6-13 is designed as rectangular to turn in bristle holder slot 5-3
It is dynamic, guarantee that the brush head 6-14 on sliding support 6-13 is vertical with blackboard plate body 1-1 always with this, I 6-4 of drive pulley is equipped with axis
The other end of bearing bore, connecting rod 6-16 is equipped with fulcrum, and the fulcrum of connecting rod 6-16 is rotatably assorted by rolling bearing units is connected to biography
In the bearing hole of I 6-4 of movable belt pulley, connecting shaft 6-12 is equipped with bearing hole, and the fulcrum on sliding support 6-13 passes through rolling bearing units
It is rotatably assorted in the bearing hole for being connected to connecting shaft 6-12, connecting shaft 6-12 is fixedly connected on gasket 6-2, realizes sliding with this
Axis 6-1 can drive sliding support 6-13 to slide in bristle holder slot 5-3, but sliding support 6-13 does not follow sliding axle 6-1 to turn
It is dynamic, it is equipped with brush head 6-14 on bristle holder 6-11 and sliding support 6-13, chalk 6-15 is equipped in brush head 6-14, passes through connecting plate
I 4-1 is applied to thrust of the support plate 5-1 towards blackboard plate body 1-1 by compressed spring 4-5, the bristle holder on support plate 5-1
Slot 5-3 drives bristle holder 6-11 and sliding support 6-13, last bristle holder 6-11 and sliding support 6-13 to drive brush head 6-
Chalk 6-15 on 14 withstands on chalk 6-15 on blackboard plate body 1-1, sliding by transverse slide 2 and longitudinal sliding motion device 3
Dynamic linkage brush pedestal 5 can make chalk 6-15 draw line on blackboard, II 5-7 of rocker arm drive the principle of the linkage brush 6 of top with
I 5-6 of rocker arm drives the linkage brush 6 of lower section identical.
The equal length of I 5-6 of rocker arm and II 5-7 of rocker arm；I 6-4 of drive pulley and II 6-6 of drive pulley
Diameter it is identical；The outer gear ring 6-3 is identical as the number of teeth of gear 6-7 and modulus；The driving rack 6-8 and fixed tooth
The size of 5-9 is identical；The shaft sliding slot 5-2, bristle holder slot 5-3, stationary rack 5-9, guiding ladder-shaped slot 5-10 and
Support dovetail groove 5-11 parallel to each other.I 5-6 of rocker arm when the equal length of I 5-6 of rocker arm and II 5-7 of rocker arm makes to move knob 5-5
The mobile identical distance of two sliding axle 6-1 is driven respectively with II 5-7 of rocker arm；Because the diameter of I outer ring 6-4 of drive pulley is to pass
Two times of the diameter of II outer ring 6-6 of movable belt pulley, outer gear ring 6-3 is identical as the number of teeth of gear 6-7 and modulus, driving rack 6-8 with
The size of stationary rack 5-9 is identical, so the rotation as outer gear ring 6-3 is transferred to II 6- of drive pulley by I 6-4 of drive pulley
6, when drive pulley II 6-6 band moving gear 6-7 is rotated, the transmission ratio of outer gear ring 6-3 and gear 6-7 are one to two；Sliding axle 6-1
When moving, outer gear ring 6-3 can be made to generate rotation by engaging for outer gear ring 6-3 and stationary rack 5-9, when outer gear ring 6-3 with
When the transmission ratio of gear 6-7 is one to two, driving rack 6-8 is identical as the size of stationary rack 5-9 to be driven gear 6-7 will
The distance that rack gear 6-8 is released is two times of the mobile distance of sliding axle 6-1, since sliding axle 6-1 drives shaft 6-5 mobile, institute
With outer gear ring 6-3, gear 6-7 is also following mobile identical distance when moving, and gear 6-7 releases driving rack 6-8
Two times of the distance that sliding axle 6-1 is moved, so driving rack 6-8 drives shaft 6-5 is mobile to follow by sliding axle 6-1
The mobile identical distance of sliding axle 6-1 and gear 6-7 add up to sliding axle 6-1 and are moved at a distance from releasing driving rack 6-8
Three times of distance, therefore the every mobile one end distance of sliding axle 6-1, the distance that driving rack 6-8 is moved are that sliding axle 6-1 is moved
Three times of dynamic distance pull the position of knob 5-5 in actual use, and knob 5-5 shakes I 5-6 of arm by hinge strip and shakes
II 5-7 of arm, I 5-6 of rocker arm and II 5-7 of rocker arm drive two sliding axle 6-1 equivalent movement in the opposite direction, two sliding support 6-
Brush head 6-14 relative motion on 13, so brush when single sliding axle 6-1 movement a distance, on two sliding support 6-13
The distance that is changed is two times of the sliding axle 6-1 distance moved between head 6-14, and two brush heads on 6 are brushed with linkage
6-14 is homodromous, so driving rack 6-8 will drive the mobile adjacent sliding of the brush head 6-14 on bristle holder 6-11
Three times of the distance that axis 6-1 is moved can just be such that the distance of each brush head 6-14 keeps constant constant, realize adjusting brush with this
Head the distance between 6-14 adjusts the line width drawn, and keeps the uniform of line width.The line that brush head 6-14 is drawn is chalk line, can
It is wiped with blackboard eraser.Heretofore described be fixedly connected refers to and is fixed by the modes such as weld, be screwed, in conjunction with not
Same use environment, uses different fixed forms.
The operation principle of the present invention is that:
Two blackboard bracket 1-4 can support blackboard plate body 1-1 on the ground；It is slidably connected by I 2-1 of cross slider
On I 1-2 of sideslip bar, II 2-2 of cross slider sliding connection makes transverse slide 2 can be on blackboard 1 in II 1-3 of sideslip bar
It slides laterally, lateral position of the transverse slide 2 on blackboard 1 is adjusted with this；Distinguished by longitudinal slide opening 3-6 at both ends
Sliding connection can make longitudinal sliding block 3-1 longitudinal sliding motion in transverse slide 2 on longitudinal slide bar 2-3 at both ends, with
This i.e. adjustable lengthwise position of longitudinal sliding block 3-1 in transverse slide 2 adjusts the position of longitudinal sliding block 3-1 to required
Behind position, crank 3-5 is rotated, rotates rotary screw 3-4, rotary screw 3-4 passes through the threaded connection with door word clamp shaft 3-2
The forward ends thereof longitudinal direction slide bar 2-3 of door word clamp shaft 3-2 is pushed, the bottom end of door word clamp shaft 3-2 is designed as arc, it is possible to increase with
The contact area of longitudinal slide bar 2-3 can be incited somebody to action as the forward ends thereof longitudinal direction slide bar 2-3 of door word clamp shaft 3-2 by frictional force
Longitudinal sliding block 3-1 is fixed on a word clamp shaft 3-2；After II 4-2 of connecting plate is fixedly connected on longitudinal sliding block 3-1, compressed spring
4-5 will be applied to thrust of I 4-1 of connecting plate towards blackboard plate body 1-1, and I 4-1 of connecting plate is fixedly connected on linkage brush pedestal 5, with this
Make to link brush pedestal 5 by the thrust towards blackboard plate body 1-1.When needing mobile linkage brush pedestal 5, pull-off spring column 4-4, i.e.,
Linkage brush pedestal 5 can be made to be lifted, so that linkage brush 6 is left blackboard, will not continue to draw line on blackboard；Knob 5-5 can adjusted
It saves in strut 5-4 and slides, behind the position of up and down adjustment knob 5-5, tightening fastening screw 5-8 on adjusting strut 5-4 makes to fasten
The medial roof of screw rod 5-8 strains at hand 5-5, can fix the position for the 5-5 that shakes hands；When needing to adjust line width, adjust knob 5-5's
Position, knob 5-5 shake II 5-7 of I 5-6 of arm and rocker arm by hinge strip, and I 5-6 of rocker arm drives the sliding axle 6-1 of lower section in shaft
Sliding in sliding slot 5-2, since the outer gear ring 6-3 at both ends is engaged with stationary rack 5-9, so sliding axle 6-1 is existed by I 5-6 of rocker arm
When being driven and move in shaft sliding slot 5-2, rotation can be generated, the rotation that sliding axle 6-1 is generated passes through I 6-4 band of drive pulley
II 6-6 of drive pulley is driven to, I 6-4 of drive pulley and shaft 6-5 keeps spacing between the two to fix by connecting rod 6-16
Constant, when sliding axle 6-1 is mobile, connecting rod 6-16 will drive shaft 6-5, and shaft 6-5 drives support rod 6-17 trapezoidal in support
Sliding in slot 5-11, support rod 6-17 plays a supportive role to shaft 6-5 and can follow the movement of shaft 6-5 and move, with this reality
It now moves I 5-6 of rocker arm and drives sliding axle 6-1, sliding axle 6-1 can be made mobile and rotate, sliding axle 6-1 passes through support rod 6-17
Drive shaft 6-5 mobile, the distance between sliding axle 6-1 and shaft 6-5 are fixed, make I 6-4 of drive pulley on sliding axle 6-1
II 6-6 of drive pulley rotation can be driven by V belt translation；II 6-6 of drive pulley is rotated by shaft 6-5 band moving gear 6-7,
Gear 6-7 drives driving rack 6-8 by the engaged transmission with driving rack 6-8, and the both ends of driving rack 6-8 are fixedly connected with
Rack frame 6-9, rack frame 6-9 play a supportive role to driving rack 6-8, and the guide runner 6-10 of two bottom ends rack frame 6-9 exists
Sliding in dovetail groove 5-11 is supported, driving rack 6-8 can be in support dovetail groove 5-11 by guide runner 6-10 and rack frame 6-9
Interior sliding when gear 6-7 rotates, can push driving rack 6-8, driving rack 6-8 to lead by rack frame 6-9 drive by engagement
It is slided in support dovetail groove 5-11 to sliding block 6-10, rack frame 6-9 drives bristle holder 6-11 mobile, bristle holder 6-11's
Front end and sliding support 6-13 are slided in bristle holder slot 5-3, and sliding support 6-13 is designed as rectangular in bristle holder slot
It not can be rotated in 5-3, guarantee that the brush head 6-14 on sliding support 6-13 is vertical with blackboard plate body 1-1 always with this, drive pulley I
6-4 is equipped with bearing hole, and the other end of connecting rod 6-16 is equipped with fulcrum, and the fulcrum of connecting rod 6-16 is matched by rolling bearing units rotation
Conjunction is connected in the bearing hole of I 6-4 of drive pulley, and connecting shaft 6-12 is equipped with bearing hole, and the fulcrum on sliding support 6-13 is logical
Rolling bearing units are crossed to be rotatably assorted in the bearing hole for being connected to connecting shaft 6-12, connecting shaft 6-12 is fixedly connected on gasket 6-2, with
This realizes that sliding axle 6-1 can drive sliding support 6-13 to slide in bristle holder slot 5-3, but sliding support 6-13 does not follow cunning
It is equipped with brush head 6-14 on moving axis 6-1 rotation, bristle holder 6-11 and sliding support 6-13, is equipped with chalk 6- in brush head 6-14
15, thrust of the support plate 5-1 towards blackboard plate body 1-1, support plate 5-1 are applied to by compressed spring 4-5 by I 4-1 of connecting plate
On bristle holder slot 5-3 drive bristle holder 6-11 and sliding support 6-13, last bristle holder 6-11 and sliding support 6-
13 drive the chalk 6-15 on brush head 6-14, withstand on chalk 6-15 on blackboard plate body 1-1, by transverse slide 2 and indulge
Linkage brush pedestal 5 is slided to carriage 3, chalk 6-15 can be made to draw line on blackboard, II 5-7 of rocker arm drives the connection of top
The principle of dynamic brush 6 drives the linkage brush 6 of lower section identical with I 5-6 of rocker arm；I 5-6 of rocker arm and the equal length of II 5-7 of rocker arm make to move
I 5-6 of rocker arm and II 5-7 of rocker arm drives the mobile identical distance of two sliding axle 6-1 respectively when dynamic knob 5-5；Because of transmission belt
The diameter for taking turns I outer ring 6-4 is two times of diameter of II outer ring 6-6 of drive pulley, the number of teeth and mould of outer gear ring 6-3 and gear 6-7
Number is identical, and driving rack 6-8 is identical as the size of stationary rack 5-9, so the rotation as outer gear ring 6-3 passes through drive pulley I
6-4 is transferred to II 6-6 of drive pulley, when drive pulley II 6-6 band moving gear 6-7 is rotated, the biography of outer gear ring 6-3 and gear 6-7
Dynamic ratio is one to two；Sliding axle 6-1 can make outer gear ring 6-3 with engaging for stationary rack 5-9 when moving, by outer gear ring 6-3
Rotation is generated, when the transmission ratio of outer gear ring 6-3 and gear 6-7 is one to two, the ruler of driving rack 6-8 and stationary rack 5-9
Two times of the very little identical distance sliding axle 6-1 for releasing gear 6-7 by driving rack 6-8 mobile distance, due to sliding
Axis 6-1 drives shaft 6-5 mobile, so gear 6-7 is also following mobile identical distance to outer gear ring 6-3 when moving, and tooth
Wheel 6-7 is again by two times of the driving rack 6-8 release sliding axle 6-1 distance moved, so driving rack 6-8 passes through sliding axle
6-1 drive shaft 6-5 mobile and follow the mobile identical distance of sliding axle 6-1 and gear 6-7 by driving rack 6-8 release away from
From add up to sliding axle 6-1 moved with a distance from three times, therefore the every mobile one end distance of sliding axle 6-1, driving rack 6-8 institute
Mobile distance is that three times of the mobile distance of sliding axle 6-1 pull the position of knob 5-5 in actual use, and shake hands 5-5
Shaking II 5-7 of I 5-6 of arm and rocker arm, I 5-6 of rocker arm and II 5-7 of rocker arm by hinge strip drives two sliding axle 6-1 towards phase negative side
It is moved to equivalent, the brush head 6-14 relative motion on two sliding support 6-13, so the mobile a distance of single sliding axle 6-1
When, the distance that is changed between the brush head 6-14 on two sliding support 6-13 by two times of the sliding axle 6-1 distance moved,
And be homodromous with two brush head 6-14 on linkage brush 6, so driving rack 6-8 will drive on bristle holder 6-11
Moved three times of distance of the mobile adjacent sliding axle 6-1 of brush head 6-14, the distance of each brush head 6-14 can just protected
It holds invariable, is realized with this and adjust the distance between brush head 6-14 to adjust the line width drawn, and keep the uniform of line width.Brush
The line that head 6-14 is drawn is chalk line, can be wiped with blackboard eraser.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (6)
1. a kind of facilitate the English teaching blackboard for writing English word, including blackboard (1), transverse slide (2), longitudinal sliding motion
Device (3), pressing device (4), linkage brush pedestal (5) and linkage brush (6), it is characterised in that: the blackboard (1) includes blackboard
Plate body (1-1), sideslip bar I (1-2), sideslip bar II (1-3) and blackboard bracket (1-4), I (1- of sideslip bar II (1-3) and sideslip bar
2) upper and lower ends in blackboard plate body (1-1) are respectively fixedly connected with, there are two blackboard bracket (1-4) is set, two blackboard bracket (1-
4) both ends in the rear end blackboard plate body (1-1) are respectively fixedly connected with；
The transverse slide (2) includes that cross slider I (2-1), cross slider II (2-2) and longitudinal slide bar (2-3), longitudinal direction are sliding
There are two bar (2-3) is set, the both ends of two longitudinal slide bars (2-3) are respectively fixedly connected in cross slider II (2-2) and cross slider I
Both ends on the inside of (2-1), cross slider I (2-1) are slidably connected on sideslip bar I (1-2), and cross slider II (2-2) sliding is matched
Conjunction is connected on sideslip bar II (1-3)；
The longitudinal sliding motion device (3) includes longitudinal sliding block (3-1), door word clamp shaft (3-2), screw bolt seat (3-3), rotation spiral shell
Bar (3-4), crank (3-5) and longitudinal slide opening (3-6), door word clamp shaft (3-2) are slidably connected at longitudinal sliding block (3-1)
Interior, screw bolt seat (3-3) is fixedly connected on longitudinal sliding block (3-1), and one end of rotary screw (3-4) is fixedly connected with a crank
(3-5), the other end of rotary screw (3-4), which is rotatably assorted, to be connected in screw bolt seat (3-3), and the front end of rotary screw (3-4) is logical
It crosses and is threaded in a word clamp shaft (3-2), there are two longitudinal slide opening (3-6) sets, two longitudinal slide openings (3-6) are respectively set
At the both ends of longitudinal sliding block (3-1), two longitudinal slide openings (3-6) run through longitudinal sliding block (3-1), door word clamp shaft (3-2)
Rear end is inserted into respectively in two longitudinal slide openings (3-6), and two longitudinal slide openings (3-6) are slidably connected respectively two longitudinal directions
On slide bar (2-3)；
The pressing device (4) includes connecting plate I (4-1), connecting plate II (4-2), limited post (4-3), spring stack (4-4) and compression
Spring (4-5), there are two limited post (4-3) is set, one end of two limited posts (4-3) is respectively fixedly connected in connecting plate I (4-1)
Both ends, the other end of two limited posts (4-3) are slidably connected respectively at the both ends of connecting plate II (4-2), spring stack (4-4)
One end is fixedly connected on the middle-end of connecting plate I (4-1), and the other end of spring stack (4-4) is slidably connected in connecting plate II (4-2)
In middle-end, one end of connecting plate II (4-2) is fixedly connected on longitudinal sliding block (3-1), and the other end of connecting plate I (4-1) is fixedly connected
In linkage brush pedestal (5), spring stack (4-4) is equipped with a compressed spring (4-5), and compressed spring (4-5) is arranged in connecting plate I
Between (4-1) and connecting plate II (4-2)；
The linkage brush pedestal (5) includes support plate (5-1), shaft sliding slot (5-2), bristle holder slot (5-3), adjusts strut
(5-4), knob (5-5), rocker arm I (5-6), rocker arm II (5-7), fastening screw (5-8), stationary rack (5-9), guiding ladder-shaped slot
(5-10) and support dovetail groove (5-11), the middle-end of support plate (5-1) are fixedly connected with a shaft sliding slot (5-2), bristle holder
Slot (5-3) is fixedly connected on one end of support plate (5-1), and the other end of support plate (5-1) is equipped with a support dovetail groove (5-
11), the middle-end of support plate (5-1) is fixedly connected with an adjusting strut (5-4), adjusts strut (5-4) and is arranged in shaft sliding slot (5-
2) between support dovetail groove (5-11), knob (5-5) sliding connection is on adjusting strut (5-4), knob (5-5) and branch
Vertically, the front end (5-7) of rocker arm I (5-6) and rocker arm II is hinged on knob (5-5) fagging (5-1), fastening screw (5-8)
It is threadedly attached in and adjusts in strut (5-4), the medial roof of fastening screw (5-8) is on knob (5-5), support plate (5-1)
Two stationary racks (5-9) are fixedly connected with, the inside of two stationary racks (5-9) is pasted with the two sides of shaft sliding slot (5-2) respectively
It closes, is set in support plate (5-1) there are two guiding ladder-shaped slot (5-10), two guiding ladder-shaped slots (5-10) are separately positioned on adjusting branch
The both ends of bar (5-4), being equidistant between two dovetail grooves (5-10) and shaft sliding slot (5-2), support plate (5-1) are equipped with support
One end of dovetail groove (5-11) is fixedly connected on connecting plate I (4-1)；
The linkage brush (6) includes sliding axle (6-1), gasket (6-2), outer gear ring (6-3), drive pulley I (6-4), shaft
(6-5), drive pulley II (6-6), gear (6-7), driving rack (6-8), rack frame (6-9), guide runner (6-10), brush head
Bracket (6-11), connecting shaft (6-12), sliding support (6-13), brush head (6-14), chalk (6-15), connecting rod (6-16) and branch
Strut (6-17), one end of sliding axle (6-1) are fixedly connected on one end of gasket (6-2), and connecting shaft (6-12) is fixedly connected on
The other end of gasket (6-2), the other end of sliding axle (6-1) are fixedly connected with a drive pulley I (6-4), and outer gear ring (6-3) is set
There are two, two outer gear rings (6-3) are fixedly connected on sliding axle (6-1), and two outer gear rings (6-3) are arranged in gasket (6-
2) between drive pulley I (6-4), drive pulley II (6-6) is fixedly connected on one end of shaft (6-5), and gear (6-7) is fixed
It is connected to the other end of shaft (6-5), drive pulley I (6-4) and drive pulley II (6-6) are cooperatively connected by V belt translation, and two
One end of a rack frame (6-9) is respectively fixedly connected at the both ends of driving rack (6-8), gear (6-7) and driving rack (6-8)
Engaged transmission, the other end of two rack frames (6-9) are respectively fixedly connected in the both ends of guide runner (6-10), bristle holder
The one end of (6-11) is fixedly connected on rack frame (6-9) on the outside, there are two brush head (6-14) is set, in two brush heads (6-14)
A piece chalk (6-15) of interference fit connection, a brush head (6-14) are fixedly connected on the other end of bristle holder (6-11),
Another brush head (6-14) is fixedly connected on one end of sliding support (6-13), and the other end of sliding support (6-13) is equipped with branch
Axis, sliding support (6-13) is rotatably assorted by fulcrum to be connected in connecting shaft (6-12), and shaft (6-5), which is rotatably assorted, to be connected to
One end of connecting rod (6-16), connecting rod (6-16) are arranged between drive pulley II (6-6) and gear (6-7), connecting rod (6-
16) the other end is equipped with fulcrum, and connecting rod (6-16) is rotatably assorted by fulcrum to be connected on drive pulley I (6-4), shaft
The outer end of (6-5), which is rotatably assorted, to be connected on support rod (6-17)；
Sliding axle (6-1) sliding connection in the shaft sliding slot (5-2), two outer gear rings (6-3) respectively with shaft sliding slot (5-
2) stationary rack (5-9) engaged transmission of two sides, the guiding ladder-shaped slot (5- of guide runner (6-10) sliding connection at one end
10) in, bristle holder (6-11) sliding connection is in bristle holder slot (5-3), sliding support (6-13) company of being slidably matched
It connects in bristle holder slot (5-3), bristle holder (6-11) is in bristle holder slot (5-3) positioned at the outer of sliding support (6-13)
Side, the bottom end sliding connection of support rod (6-17) is in support dovetail groove (5-11)；
There are two the linkage brush (6) is set, two linkage brushes (6) are symmetricly set in linkage brush pedestal (5), underlying
The sliding axle (6-1) of linkage brush (6), which is rotatably assorted, is connected to the rear end of rocker arm I (5-6), and rocker arm I (5-6) is arranged in lower section
Linkage brush (6) gasket (6-2) and between the outer gear ring (6-3) of gasket (6-2), the linkage brush (6) that is located above
Sliding axle (6-1), which is rotatably assorted, is connected to the rear end of rocker arm II (5-7), and rocker arm II (5-7) setting is located at linkage brush above
(6) between the outer gear ring (6-3) of gasket (6-2) and close gasket (6-2).
2. a kind of English teaching blackboard for facilitating writing English word according to claim 1, it is characterised in that: described
The equal length of rocker arm I (5-6) and rocker arm II (5-7).
3. a kind of English teaching blackboard for facilitating writing English word according to claim 2, it is characterised in that: described
The diameter of the outer ring drive pulley I (6-4) is two times of the diameter of the outer ring drive pulley II (6-6).
4. a kind of English teaching blackboard for facilitating writing English word according to claim 3, it is characterised in that: described
Outer gear ring (6-3) is identical as the number of teeth of gear (6-7) and modulus.
5. a kind of English teaching blackboard for facilitating writing English word according to claim 4, it is characterised in that: described
Driving rack (6-8) is identical as the size of stationary rack (5-9).
6. a kind of English teaching blackboard for facilitating writing English word according to claim 5, it is characterised in that: described
Shaft sliding slot (5-2), bristle holder slot (5-3), stationary rack (5-9), guiding ladder-shaped slot (5-10) and support dovetail groove (5-
11) parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887045.3A CN108973455B (en) | 2018-08-06 | 2018-08-06 | English teaching blackboard convenient for writing English words |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810887045.3A CN108973455B (en) | 2018-08-06 | 2018-08-06 | English teaching blackboard convenient for writing English words |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108973455A true CN108973455A (en) | 2018-12-11 |
| CN108973455B CN108973455B (en) | 2020-06-16 |
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| CN201810887045.3A Expired - Fee Related CN108973455B (en) | 2018-08-06 | 2018-08-06 | English teaching blackboard convenient for writing English words |
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| CN110481206A (en) * | 2019-08-26 | 2019-11-22 | 商丘医学高等专科学校 | A kind of auxiliary device convenient for writing English word |
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| CN112440604A (en) * | 2020-11-24 | 2021-03-05 | 濮阳职业技术学院 | English teaching auxiliary system |
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| CN203046640U (en) * | 2013-01-18 | 2013-07-10 | 李滢 | Four-line three-grid scribing device for English teaching |
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