CN208646426U - A kind of math teaching tool for primary school - Google Patents
A kind of math teaching tool for primary school Download PDFInfo
- Publication number
- CN208646426U CN208646426U CN201820191577.9U CN201820191577U CN208646426U CN 208646426 U CN208646426 U CN 208646426U CN 201820191577 U CN201820191577 U CN 201820191577U CN 208646426 U CN208646426 U CN 208646426U
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- CN
- China
- Prior art keywords
- gear
- bracket
- cage plate
- upper boom
- loop bar
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Abstract
The utility model relates to a kind of mathematics teaching aids, it in particular is a kind of math teaching tool for primary school, including bracket component, transversal stretching component and flexible supporting plate, it is slidably connected by slide bar and lateral loop bar, the length that changeable slide bar and lateral loop bar stretch, the gap that the conical surface of lateral loop bar is bonded with the taper hollow slots of lateral locking nut reduces, realize the locking flexible to slide bar and lateral loop bar, the change of slide bar and the flexible collapsing length of lateral loop bar can be converted into the change of flexible supporting plate Yu vertical direction angle by hinge axis, rotate gear tie down screw, so that being converted into the up and down motion of right side upper boom by the circular motion of gear, to adjust collapsing length of the right side upper boom in the bracket of right side, rotate gear tie down screw, so that being converted into the up and down motion of right side upper boom by the circular motion of gear, to adjust right side upper boom on the right side Collapsing length in side stand can be changed the height of whole device, can be locked to gear mechanism by tie down screw.
Description
Technical field
The utility model relates to a kind of mathematics teaching aids, are in particular a kind of math teaching tool for primary school.
Background technique
Such as a kind of math teaching tool for primary school of Patent No. CN201720346668.0, including circle ruler ontology, circle ruler ontology
Middle part is horizontally arranged with ruler, and ruler center is equipped with cylindrical fixed column, fixed magnetite, cylinder are equipped on the inside of cylindrical fixed column
Sliding rail is equipped on the ruler of shape fixed column two sides, be slidably connected chalk clamp in sliding rail, connection support bar in cylindrical fixed column,
Circle ruler body edges are equipped with rotating handle, and the utility model structure is simple, is convenient for carrying, and convenient for teaching, can draw different-diameter
Circle, the sector of any radian, arbitrary diameter concentric circles, draw high-efficient, improve efficiency of teaching.The design does not carry
The design of blackboard can not change the length, height and angle of device.
Utility model content
The purpose of the utility model is to provide a kind of math teaching tool for primary school, can place the blackboard of different length, pass through end
Head can be limited to from cage plate, and the length that slide bar and lateral loop bar stretch can be changed, the height of whole device can be changed.
The purpose of this utility model is achieved through the following technical solutions:
A kind of math teaching tool for primary school, including bracket component, transversal stretching component and flexible supporting plate, the bracket component include
Left side brackets, right side bracket, left side upper boom, right side upper boom, gear assembly, stop screw and Limit screw, the left side upper boom
It is slidably connected at the upper end of left side brackets, right side upper boom is slidably connected at the upper end of right side bracket, the front end of the left side brackets
It is slidably connected at the rear end of right side bracket, gear assembly is welded to connect on the bracket of right side, and stop screw is plugged on right side bracket
Front end, the front end of stop screw is against the front end of right side bracket outer wall, after Limit screw is threadedly attached in right side bracket
End, the left side of the right side upper boom are welded with rack gear, and the left end of Limit screw is against the right end of left side brackets；
The gear assembly includes wheel gear locking screw rod, gear, locking nut, tie down screw and gear assembly bracket, institute
Gear welded connecting is stated in the middle-end of wheel gear locking screw rod, wheel gear locking screw rod is rotatably connected on gear assembly bracket, is locked
Nut is threadedly attached in wheel gear locking spiro rod rear end, and locking nut is bonded with the rear end face of gear assembly bracket, locking screw
Bar is threadedly attached in gear assembly back-end support, and the front end face of tie down screw arrives to the rear end face of gear, gear and right side
The rack gear of upper boom left side engages；
The transversal stretching component includes horizontal sliding bar, lateral loop bar and lateral locking nut, the horizontal sliding bar sliding
Be connected to the inner end of lateral loop bar, lateral locking nut is threadedly attached in the outer wall of lateral loop bar, lateral locking nut with
Horizontal sliding bar clearance fit；
The flexible supporting plate includes main cage plate, from cage plate, hinge axis and end, described to be slidably connected at from the lower end of cage plate
The lower end of main cage plate, hinge axis secure fit are connected to from cage plate rear end, and the lower end of main cage plate is equipped with cylindricality through-hole, and end is connected
It connects in the lower end from cage plate, the lower end of main cage plate is equipped with rectangle baffle I, is equipped with rectangle baffle II from the lower end of cage plate；
The right end of the transverse direction loop bar is welded to connect the right end in left side upper boom, and hinge axis is hinged on a left side for horizontal sliding bar
End is hinged on left side upper boom upper end from the upper end of cage plate by articulated shaft, and the upper end of main cage plate is hinged on right side by articulated shaft
Upper boom upper end.
As advanced optimizing for the technical program, a kind of math teaching tool for primary school of the utility model, the right side upper boom
Lower end is equipped with groove, and the stop screw sliding connection is in groove.
As advanced optimizing for the technical program, a kind of math teaching tool for primary school of the utility model, the gear assembly branch
Frame upper end is equipped with through-hole I and through-hole II, and the through-hole II runs through wheel assembly bracket, and the wheel gear locking screw rod is rotatably connected on logical
In hole II, gear is located at gear assembly bracket inner end, and tie down screw is threadedly attached in through-hole I.
As advanced optimizing for the technical program, a kind of math teaching tool for primary school of the utility model, the transverse direction loop bar
Left end is tapered surface, and the inner end of lateral locking nut is equipped with taper hollow slots, the conical surface of lateral loop bar and lateral locking nut
The fitting of taper hollow slots.
As advanced optimizing for the technical program, a kind of math teaching tool for primary school of the utility model, the lower end of the cage plate
Length equipped with cylindricality through-hole is less than the length of cage plate, and the diameter of the cylindricality through-hole of cage plate is greater than the diameter of end.
A kind of math teaching tool for primary school of the utility model has the beneficial effect that
A kind of math teaching tool for primary school of the utility model, blackboard are placed on main cage plate and from cage plates, sliding from the lower end of cage plate
The dynamic lower end for being connected to main cage plate pulls from cage plate, the spacing between cage plate and main cage plate can be changed, can place different length
The blackboard of degree can be limited by end to from cage plate, be slidably connected by slide bar and lateral loop bar, slide bar and cross can be changed
The length stretched to loop bar, lateral locking nut are rotated by screw thread to the right end of lateral loop bar, the conical surface and cross of lateral loop bar
The gap being bonded to the taper hollow slots of locking nut reduces, the realization locking flexible to slide bar and lateral loop bar, slide bar and cross
The change of flexible supporting plate Yu vertical direction angle, turning gear can be converted by hinge axis to the stretch change of collapsing length of loop bar
Tie down screw is taken turns, so that being converted into the up and down motion of right side upper boom, by the circular motion of gear to adjust right side upper boom on the right side
Collapsing length in side stand, rotate gear tie down screw, so that being converted into the upper of right side upper boom by the circular motion of gear
Lower movement can be changed the height of whole device, pass through tie down screw to adjust collapsing length of the right side upper boom in the bracket of right side
Gear mechanism can be locked.
Detailed description of the invention
The utility model is described in more detail with specific implementation method with reference to the accompanying drawing.
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 bracket component structural schematic diagram of the utility model；
Fig. 4 is the right side upper boom structural schematic diagram of the utility model；
Fig. 5 is the gear assembly structural schematic diagram of the utility model；
Fig. 6 is the gear assembly supporting structure schematic diagram of the utility model；
Fig. 7 is the lateral loop bar structure schematic diagram of the utility model；
Fig. 8 is that the transverse cross of the utility model cuts open figure to locking nut structure；
Fig. 9 is the flexible supporting plate structural schematic diagram of the utility model；
Figure 10 is the flexible supporting plate structure sectional view of the utility model；
Figure 11 is the flexible supporting plate partial enlarged view of the utility model；
Figure 12 is the transversal stretching component partial enlarged view of the utility model；
Figure 13 is the transversal stretching modular construction cross-sectional view of the utility model；
Figure 14 is the lateral left side brackets structural schematic diagram of the utility model；
Figure 15 is the laterally right side supporting structure schematic diagram of the utility model；
Figure 16 is the lateral loop bar structure schematic diagram of the utility model.
In figure: bracket component 1；Left side brackets 1-1；Right side bracket 1-2；Left side upper boom 1-3；Right side upper boom 1-4；Groove 1-
4-1；Gear assembly 1-5；Wheel gear locking screw rod 1-5-1；Gear 1-5-2；Locking nut 1-5-3；Tie down screw 1-5-4；Gear
Assembly support 1-5-6；I 1-5-6-1 of through-hole；II 1-5-6-2 of through-hole；Stop screw 1-6；Limit screw 1-7；Transversal stretching component
2；Horizontal sliding bar 2-1；Lateral loop bar 2-2；Lateral locking nut 2-3；Flexible supporting plate 3；Main cage plate 3-1；From cage plate 3-2；Hinge
Axis 3-3；End 3-4.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Specific embodiment 1:
Illustrate present embodiment below with reference to Fig. 1,2,3,4,5,6,7, a kind of math teaching tool for primary school, including bracket component 1,
Transversal stretching component 2 and flexible supporting plate 3, the bracket component 1 include left side brackets 1-1, right side bracket 1-2, left side upper boom 1-
3, right side upper boom 1-4, gear assembly 1-5, stop screw 1-6 and Limit screw 1-7, the left side upper boom 1-3 are slidably connected at
The upper end of left side brackets 1-1, right side upper boom 1-4 are slidably connected at the upper end of right side bracket 1-2, before the left side brackets 1-1
End is slidably connected at the rear end of right side bracket 1-2, and gear assembly 1-5 is welded to connect the stop screw 1-6 on the bracket 1-2 of right side
It is plugged on the right side front end bracket 1-2, the front end of stop screw 1-6 is against the front end of right side bracket 1-2 outer wall, Limit screw 1-7
It is threadedly attached in the rear end of right side bracket 1-2, the left side of the right side upper boom 1-4 is welded with rack gear, Limit screw 1-7
Left end be against the right end of left side brackets 1-1；
The gear assembly 1-5 includes wheel gear locking screw rod 1-5-1, gear 1-5-2, locking nut 1-5-3, tie down screw
1-5-4 and gear assembly bracket 1-5-6, the gear 1-5-2 are welded to connect the middle-end in wheel gear locking screw rod 1-5-1, gear
Tie down screw 1-5-1 is rotatably connected on gear assembly bracket 1-5-6, and locking nut 1-5-3 is threadedly attached in gear lock
The tight rear end screw rod 1-5-1, locking nut 1-5-3 are bonded with the rear end face of gear assembly bracket 1-5-6, and tie down screw 1-5-4 is logical
It crosses and is threaded in the rear end gear assembly bracket 1-5-6, the front end face of tie down screw 1-5-4 arrives to the rear end face of gear 1-5-2,
Gear 1-5-2 is engaged with the rack gear of the right side left side upper boom 1-4；
The transversal stretching component 2 includes horizontal sliding bar 2-1, transverse direction loop bar 2-2 and lateral locking nut 2-3, the cross
The inner end of lateral loop bar 2-2 is slidably connected to slide bar 2-1, lateral locking nut 2-3 is threadedly attached in lateral loop bar 2-2
Outer wall, lateral locking nut 2-3 and horizontal sliding bar 2-1 clearance fit；
The flexible supporting plate 3 includes main cage plate 3-1, from cage plate 3-2, hinge axis 3-3 and end 3-4, described from cage plate 3-2
Lower end be slidably connected at the lower end of main cage plate 3-1, hinge axis 3-3 secure fit is connected to from the rear end cage plate 3-2, main cage plate 3-
1 lower end is equipped with cylindricality through-hole, and end 3-4 is solidly connected in the lower end from cage plate 3-2, and the lower end of main cage plate 3-1 is kept off equipped with rectangle
Plate I is equipped with rectangle baffle II from the lower end of cage plate 3-2, blackboard is placed on rectangle baffle I and rectangle baffle II, is prevented black
Plate slides from cage plate 3-2 and main cage plate 3-1；
The right end of the transverse direction loop bar 2-2 is welded to connect the right end in left side upper boom 1-3, and hinge axis 3-3 is hinged on transverse direction
The left end of slide bar 2-1 is hinged on the left side upper end upper boom 1-3, the upper end of main cage plate 3-1 from the upper end of cage plate 3-2 by articulated shaft
The right side upper end upper boom 1-4 is hinged on by articulated shaft.
Specific embodiment 2:
Illustrate that present embodiment, present embodiment make further embodiment one below with reference to Fig. 1,2,3,4,5,6,7
Illustrate, the lower end of the right side upper boom 1-4 is equipped with groove 1-4-1, and the stop screw 1-6 clearance fit is in groove 1-4-1.
Specific embodiment 2:
Illustrate that present embodiment, present embodiment make further embodiment one below with reference to Fig. 1,2,3,4,5,6,7
Illustrate, the upper end gear assembly bracket 1-5-6 is equipped with II 1-5-6-2 of I 1-5-6-1 of through-hole and through-hole, II 1-5- of through-hole
6-2 runs through wheel assembly bracket 1-5-6, and the wheel gear locking screw rod 1-5-1 is rotatably connected in II 1-5-6-2 of through-hole, gear 1-
5-2 is located at the inner end gear assembly bracket 1-5-6, and wheel assembly bracket 1-5-6 plays the role of support to gear assembly 1-5.
Specific embodiment 3:
Illustrate that present embodiment, present embodiment make further embodiment one below with reference to Fig. 1,2,3,4,5,6,7
Illustrate, the left end of the transverse direction loop bar 2-2 is tapered surface, and the inner end of lateral locking nut 2-3 is equipped with taper hollow slots, laterally covers
The conical surface of bar 2-2 is bonded with the taper hollow slots of lateral locking nut 2-3, the conical surface and laterally locking by lateral loop bar 2-2
The taper hollow slots of nut 2-3 are bonded, it can be achieved that transverse direction locking nut 2-3 is to the mechanical interlocking of lateral loop bar 2-2.
Specific embodiment 4:
Illustrate that present embodiment, present embodiment make further embodiment one below with reference to Fig. 1,2,3,4,5,6,7
Illustrate, the length that the lower end of the cage plate 3-1 is equipped with cylindricality through-hole is less than the length of cage plate 3-1, the cylindricality through-hole of cage plate 3-1
Diameter is greater than the diameter of end 3-4, and end 3-4 is limited from cage plate 3-2 being slidably connected in main cage plate 3-1, so that
Main cage plate 3-1 is not departed from from cage plate 3-2.
A kind of math teaching tool for primary school of the utility model, its working principle is that:
In use, blackboard is placed on main cage plate 3-1 and from cage plate 3-2, is slidably connected at master from the lower end of cage plate 3-2
The lower end of cage plate 3-1 pulls from cage plate 3-2, changes the spacing between cage plate 3-2 and main cage plate 3-1, can place different length
The blackboard of degree, because the length that the lower end of cage plate 3-1 is equipped with cylindricality through-hole is less than the length of cage plate 3-1, the cylindricality through-hole of cage plate 3-1
Diameter be greater than end 3-4 diameter, can be limited to from cage plate 3-2 by end 3-4, prevent from cage plate 3-2 be detached from lead
Cage plate 3-1, main cage plate 3-1 and it is respectively hinged at left side brackets 1-1 and the right side upper end upper boom 1-4 from the upper end of cage plate 3-2, and cut with scissors
Chain rivet 3-3 is hinged on horizontal sliding bar 2-1, is slidably connected by slide bar 2-1 and transverse direction loop bar 2-2, and slide bar 2-1 and transverse direction can be changed
Loop bar 2-2 flexible length, because lateral locking nut 2-3 is threadedly attached on lateral loop bar 2-2, lateral locking nut 2-
3 are rotated by screw thread to the right end of lateral loop bar 2-2, the taper hollow out of the conical surface of lateral loop bar 2-2 and lateral locking nut 2-3
The gap of slot fitting reduces, and realizes the locking stretched to slide bar 2-1 and transverse direction loop bar 2-2, and slide bar 2-1 is stretched with transverse direction loop bar 2-2
The change of contracting collapsing length can be converted into the change of flexible supporting plate 3 and vertical direction angle by hinge axis 3-3, because of gear 1-5-
2 engage with the rack gear of the right side left side upper boom 1-4, rotate gear tie down screw 1-5-1, so that passing through the circumference of gear 1-5-2
Conversion of motion is the up and down motion of right side upper boom 1-4, to adjust collapsing length of the right side upper boom 1-4 in the bracket 1-2 of right side, this
The height of whole device can be changed in sample, can be to gear 1-5-2 mechanical interlocking, to lock whole device by tie down screw 1-5-4
Height change.
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 math teaching tool for primary school, including bracket component (1), transversal stretching component (2) and flexible supporting plate (3), feature exists
In: the bracket component (1) includes left side brackets (1-1), right side bracket (1-2), left side upper boom (1-3), right side upper boom (1-
4), gear assembly (1-5), stop screw (1-6) and Limit screw (1-7), the left side upper boom (1-3) are slidably connected at left side
The upper end of bracket (1-1), right side upper boom (1-4) are slidably connected at the upper end of right side bracket (1-2), the left side brackets (1-1)
Front end be slidably connected at right side bracket (1-2) rear end, gear assembly (1-5) be welded to connect on right side bracket (1-2), limit
Position screw (1-6) is plugged on right side front end bracket (1-2), and the front end of stop screw (1-6) is against right side bracket (1-2) outer wall
Front end, Limit screw (1-7) are threadedly attached in the rear end of right side bracket (1-2), the left side of the right side upper boom (1-4)
It is welded with rack gear, the left end of Limit screw (1-7) is against the right end of left side brackets (1-1)；
The gear assembly (1-5) includes wheel gear locking screw rod (1-5-1), gear (1-5-2), locking nut (1-5-3), locking
Screw rod (1-5-4) and gear assembly bracket (1-5-6), the gear (1-5-2) are welded to connect at wheel gear locking screw rod (1-5-1)
Middle-end, wheel gear locking screw rod (1-5-1) is rotatably connected on gear assembly bracket (1-5-6), and locking nut (1-5-3) passes through
It is threaded in the rear end wheel gear locking screw rod (1-5-1), the rear end of locking nut (1-5-3) and gear assembly bracket (1-5-6)
Face paste is closed, and tie down screw (1-5-4) is threadedly attached in the rear end gear assembly bracket (1-5-6), tie down screw (1-5-4)
Front end face arrives to the rear end face of gear (1-5-2), and gear (1-5-2) is engaged with the rack gear of the left side right side upper boom (1-4)；
The transversal stretching component (2) includes horizontal sliding bar (2-1), lateral loop bar (2-2) and lateral locking nut (2-3), institute
The inner end that horizontal sliding bar (2-1) is slidably connected at lateral loop bar (2-2) is stated, lateral locking nut (2-3) is threadedly attached in
The outer wall of lateral loop bar (2-2), lateral locking nut (2-3) and horizontal sliding bar (2-1) clearance fit；
The flexible supporting plate (3) includes main cage plate (3-1), from cage plate (3-2), hinge axis (3-3) and end (3-4), it is described from
The lower end of cage plate (3-2) is slidably connected at the lower end of main cage plate (3-1), and hinge axis (3-3) secure fit is connected to from cage plate (3-
2) lower end of rear end, main cage plate (3-1) is equipped with cylindricality through-hole, and end (3-4) is solidly connected in the lower end from cage plate (3-2), main set
The lower end of plate (3-1) is equipped with rectangle baffle I, is equipped with rectangle baffle II from the lower end of cage plate (3-2)；
The right end of the transverse direction loop bar (2-2) is welded to connect the right end in left side upper boom (1-3), and hinge axis (3-3) is hinged on cross
To the left end of slide bar (2-1), left side upper end upper boom (1-3), main cage plate are hinged on from the upper end of cage plate (3-2) by articulated shaft
The upper end of (3-1) is hinged on the right side upper end upper boom 1-4 by articulated shaft.
2. a kind of math teaching tool for primary school according to claim 1, it is characterised in that: the lower end of the right side upper boom (1-4)
Equipped with groove (1-4-1), stop screw (1-6) sliding connection is in groove (1-4-1).
3. a kind of math teaching tool for primary school according to claim 2, it is characterised in that: the gear assembly bracket (1-5-6)
Upper end is equipped with through-hole I (1-5-6-1) and through-hole II (1-5-6-2), and the through-hole II (1-5-6-2) runs through gear assembly bracket
(1-5-6), the wheel gear locking screw rod (1-5-1) are rotatably connected in through-hole II (1-5-6-2), and gear (1-5-2) is located at tooth
The inner end wheel assembly bracket (1-5-6), tie down screw (1-5-4) are threadedly attached in through-hole I (1-5-6-1).
4. a kind of math teaching tool for primary school according to claim 3, it is characterised in that: the left end of the transverse direction loop bar (2-2)
For tapered surface, the inner end of lateral locking nut (2-3) is equipped with taper hollow slots, the conical surface of lateral loop bar (2-2) and laterally locking
The taper hollow slots of nut (2-3) are bonded.
5. a kind of math teaching tool for primary school according to claim 4, it is characterised in that: the lower end of the main cage plate (3-1) is set
There is the length of cylindricality through-hole to be less than the length of main cage plate (3-1), the diameter of the cylindricality through-hole of main cage plate (3-1) is greater than end (3-
4) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820191577.9U CN208646426U (en) | 2018-02-05 | 2018-02-05 | A kind of math teaching tool for primary school |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820191577.9U CN208646426U (en) | 2018-02-05 | 2018-02-05 | A kind of math teaching tool for primary school |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208646426U true CN208646426U (en) | 2019-03-26 |
Family
ID=65771323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820191577.9U Expired - Fee Related CN208646426U (en) | 2018-02-05 | 2018-02-05 | A kind of math teaching tool for primary school |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208646426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288280A (en) * | 2020-03-26 | 2020-06-16 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
-
2018
- 2018-02-05 CN CN201820191577.9U patent/CN208646426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288280A (en) * | 2020-03-26 | 2020-06-16 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
| CN111288280B (en) * | 2020-03-26 | 2021-09-07 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20200205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |