CN209028841U - A kind of applied mathematics problem showing stand - Google Patents
A kind of applied mathematics problem showing stand Download PDFInfo
- Publication number
- CN209028841U CN209028841U CN201821117641.5U CN201821117641U CN209028841U CN 209028841 U CN209028841 U CN 209028841U CN 201821117641 U CN201821117641 U CN 201821117641U CN 209028841 U CN209028841 U CN 209028841U
- Authority
- CN
- China
- Prior art keywords
- display board
- sheet frame
- roof
- bevel gear
- shaft
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of applied mathematics problem showing stands, including pedestal, support rod is installed on the roof of the pedestal, lifting groove is offered in the support rod, elevating lever is fitted in the lifting groove, installation shows plate framework on the roof of the elevating lever, first rotating shaft slot is offered on the support arm for showing plate framework both ends, first rotating shaft is fitted in two first rotating shaft slots, displaying sheet frame is installed jointly on the opposite side wall of two first rotating shafts, is symmetrically installed on the roof for showing sheet frame and shows sheet frame lid.The utility model display board is made of muti-piece panel, can show multiple groups problem simultaneously, improves efficiency of teaching, is shown and is symmetrically installed with displaying sheet frame lid on the roof of sheet frame, facilitates the pick-and-place of display board, and the problem for being conducive to lecturer writes and the replacement of display board.
Description
Technical field
The utility model relates to educational tool technical field more particularly to a kind of applied mathematics problem showing stands.
Background technique
Now, when lecturer prepares the explanation of Mathematics and Applied Mathematics problem, be usually all problem is perfected in book putting on record, then
It writes out problem and parsing scheme on blackboard with chalk on classroom, spends a large amount of time in classroom, limited time in classroom in this way
A few road problems can only be explained in this way, and efficiency of teaching is very low, and general problem parsing showing stand height is unadjustable, or only
To manually adjust, in addition the typesetting excessively entanglement of most display boards, need to make improvements this.
Utility model content
That purpose of the utility model is to solve efficiencys of teaching in the prior art is low, height is non-adjustable, typesetting is very few
Problem, and a kind of applied mathematics problem showing stand proposed.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of applied mathematics problem showing stand, including pedestal are equipped with support rod, the support on the roof of the pedestal
Lifting groove is offered in bar, elevating lever is fitted in the lifting groove, and installation shows plate framework, institute on the roof of the elevating lever
It states and offers first rotating shaft slot on the support arm for showing plate framework both ends, be fitted with first turn in two first rotating shaft slots
Axis is equipped with displaying sheet frame on the opposite side wall of two first rotating shafts jointly, symmetrically pacifies on the roof for showing sheet frame
Equipped with displaying sheet frame lid.
Preferably, mechanical slot is offered in the support rod, and is offered in the opposite two side walls of the mechanical slot
Two rotary axis grooves are fitted with the second shaft in two second rotary axis grooves jointly, are set on the side wall of second shaft
One bevel gear is equipped with motor placement rack on the bottom wall of the mechanical slot, is equipped with motor in the motor placement rack,
Second installing seat for bevel gear is installed, and the second shaft is installed through the second bevel gear on the outer roof of the motor placement rack
On seat.
Preferably, thread groove is offered in the elevating lever, the thread groove internal screw thread is connected with screw rod, the screw rod
Second bevel gear is installed, and the second bevel gear and the first bevel gear are intermeshed on bottom wall, the bottom wall of second bevel gear
On offer third rotary axis groove, third shaft is fitted in the third rotary axis groove, and third shaft is mounted on the second bevel gear
The roof of mounting base.
Preferably, the first runner is set on the lateral wall of second shaft, the driving end cap of the motor is equipped with
Together about equipped with conveyer belt on the outer wall of second runner, first runner and the second runner.
Preferably, the displaying sheet frame includes the first display board, the second display board, third display board, the displaying sheet frame
Three display board shifting chutes, and the first display board, the second display board, third display board are uniformly provided on opposite inner sidewall
It is located in three display board shifting chutes, symmetrically offers chuck slot on the roof and bottom wall for showing sheet frame, it is described
Chuck is laid in chuck slot, is fixedly connected with spring on the bottom wall of the chuck.
Preferably, positive and negative two-way switch, and the output of positive and negative two-way switch are installed on the transverse arm for showing plate framework
End is electrically connected with the input terminal of motor.
Compared with prior art, the utility model has the following beneficial effects:
1, bracket display board is made of muti-piece panel, can be shown multiple groups problem simultaneously, be increased the number of parsed problem
Amount improves efficiency of teaching；
2, it shows to be symmetrically installed on the roof of sheet frame and shows sheet frame lid, facilitate the pick-and-place of display board, be conducive to lecturer couple
Problem writes and replacement；
3, bracket is provided with apparatus for automatically lifting, explanation teacher and the student that listens to the teacher, and only need to can adjust displaying by lower switch
The height of frame realizes the automation of bracket lifting.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of applied mathematics problem showing stand front view；
Fig. 2 be the utility model proposes a kind of applied mathematics problem showing stand fragmentary sectional elevation view；
Fig. 3 be the utility model proposes a kind of applied mathematics problem showing stand displaying sheet frame cross-sectional view.
In figure: 1 pedestal, 2 support rods, 3 elevating levers, 4 show plate framework, 5 first rotating shaft slots, 6 first rotating shafts, 7 display boards
Frame, 8 show sheet frame lids, 9 positive and negative two-way switch, 10 mechanical slots, 11 second rotary axis grooves, 12 second shafts, 13 first runners, 14 the
One bevel gear, 15 motor, 16 second installing seat for bevel gear, 17 second bevel gears, 18 screw rods, 19 lifting grooves, 20 thread grooves, 71
First display board, 72 second display boards, 73 third display boards, 74 chuck, 75 springs, 76 display board shifting chutes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-3, a kind of applied mathematics problem showing stand, including pedestal 1 are equipped with support rod on the roof of pedestal 1
2, lifting groove 19 is offered in support rod 2, elevating lever 3 is fitted in lifting groove 19, and installation shows sheet frame on the roof of elevating lever 3
Frame 4 shows and offers first rotating shaft slot 5 on the support arm at 4 both ends of plate framework, is fitted with first in two first rotating shaft slots 5
Shaft 6 is equipped on the opposite side wall of two first rotating shafts 6 jointly and shows sheet frame 7, is conducive to display board by first rotating shaft 6
The rotation of frame 7 is symmetrically installed on the roof of displaying sheet frame 7 so that display board front and back sides can use and shows sheet frame lid 8,
The setting of sheet frame lid 8 facilitates the pick-and-place of display board, is conducive to the writing and replacement of lecturer's problem.
Mechanical slot 10 is offered in support rod 2, and the second rotary axis groove 11 is offered in the opposite two side walls of mechanical slot 10,
The second shaft 12 is fitted in two the second rotary axis grooves 11 jointly, the first bevel gear 14 is set on the side wall of the second shaft 12,
Motor placement rack is installed on the bottom wall of mechanical slot 1, motor 15 is installed in motor placement rack, motor placement rack
Second installing seat for bevel gear 16 is installed, the second installing seat for bevel gear 16 can stablize the second bevel gear 17, and on outer roof
Two shafts 12 run through the second installing seat for bevel gear 16.
In the utility model, thread groove 20 is offered in elevating lever 3,20 internal screw thread of thread groove is connected with screw rod 18, screw rod
18 in thread groove 20 when rotating, and generates external force, effect of the elevating lever 3 in external force to thread groove 20 by thread screw 18
Lower realization moves up and down, and the bottom end of screw rod 18 is equipped with the second bevel gear 17, and the second bevel gear 17 and 14 phase of the first bevel gear
It mutually engages, offers third rotary axis groove on the bottom wall of the second bevel gear 17, third shaft, and third are fitted in third rotary axis groove
Shaft is mounted on the roof of the second installing seat for bevel gear 16.
The first runner 13 is set on the lateral wall of second shaft 12, the driving end cap of motor 15 is equipped with the second runner,
Together about conveyer belt is equipped on the outer wall of first runner 13 and the second runner, motor 15 is driven by the second runner, conveyer belt
The rotation of first runner 13, the first runner 13 drive the second shaft 12 to rotate again, and pass through the first bevel gear 14, the second bevel gear 17
Screw rod 18 is driven to rotate.
It shows that sheet frame 7 includes the first display board 71, the second display board 72, third display board 73, shows opposite interior of sheet frame 7
Three display board shifting chutes 76, and the first display board 71, the second display board 72, third display board 73 are uniformly provided on side wall
It is located in three display board shifting chutes 76, shows and symmetrically offer chuck slot, chuck slot on the roof and bottom wall of sheet frame 7
Chuck 74 is inside laid, spring 75 is fixedly connected on the bottom wall of chuck 74.
Show and positive and negative two-way switch 9 be installed on the transverse arm of plate framework 4, and the output end of positive and negative two-way switch 9 with it is electronic
The input terminal of machine 15 is electrically connected, and when positive and negative two-way switch 9 is placed in positive state, elevating lever 3 can be moved up, will be positive and negative double
When being placed in reversed state to switch 9, elevating lever 3 can be moved down.
In the utility model, when using the showing stand, lecturer, which can first open, shows sheet frame lid 8, and display board is placed
In the display board shifting chute 76 for showing sheet frame 7, and the second display board 72 is located in the middle in display board shifting chute, and second shows
The area of plate 72 is display board 71, twice of third display board 73, and the face of the first display board 71, third display board 73
Product is the half for showing 7 area of plane of sheet frame, shows that sheet frame 7 is mounted on by first rotating shaft 6 and shows on plate framework 4, by the
One shaft 6 shows that sheet frame 7 can rotate, so that the front and back sides of display board can use, increases shown parsing problem
Quantity, improve efficiency of teaching, showing stand is equipped with lifting device, and motor 15 is electrically connected with positive and negative two-way switch 9, opens positive and negative
Two-way switch 9 makes motor 15 work, and motor 15 drives the rotation of the second shaft 12, is set on the side wall of the second shaft 12
First bevel gear 14, the first bevel gear 14 are rotated with shaft 12, and the first bevel gear 14 and the second bevel gear 17 are intermeshed,
Second bevel gear 17 drive screw rod 18 rotate, due to screw rod 18 be threadedly coupled elevating lever 3, so elevating lever 3 can screw rod 18 with
The interaction of the thread groove opened up in elevating lever 3 simultaneously cooperates positive and negative two-way switch 9, realizes lifting, after teaching, lecturer
It can be again turned on and show sheet frame lid 8, take out display board, and placed, in case next time is used again.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of applied mathematics problem showing stand, including pedestal (1), it is characterised in that: be equipped on the roof of the pedestal (1)
Support rod (2), the support rod (2) is interior to be offered lifting groove (19), is fitted with elevating lever (3), institute in the lifting groove (19)
It states to be equipped on the roof of elevating lever (3) and shows plate framework (4), offered on the support arm for showing plate framework (4) both ends
First rotating shaft slot (5), two first rotating shaft slots (5) are interior to be fitted with first rotating shaft (6), two first rotating shafts (6)
It is equipped with jointly on opposite side wall and shows sheet frame (7), be symmetrically installed on the roof for showing sheet frame (7) and show sheet frame lid
(8).
2. a kind of applied mathematics problem showing stand according to claim 1, it is characterised in that: opened in the support rod (2)
Equipped with mechanical slot (10), the second rotary axis groove (11) are offered in the opposite two side walls of the mechanical slot (10), described in two
It is fitted with jointly the second shaft (12) in second rotary axis groove (11), is set with the first umbrella tooth on the side wall of second shaft (12)
It takes turns (14), motor placement rack is installed on the bottom wall of the mechanical slot (10), is equipped in the motor placement rack electronic
Machine (15) is equipped with the second installing seat for bevel gear (16) on the outer roof of the motor placement rack, and the second shaft (12) is passed through
Wear the second installing seat for bevel gear (16).
3. a kind of applied mathematics problem showing stand according to claim 1, it is characterised in that: opened in the elevating lever (3)
Equipped with thread groove (20), thread groove (20) internal screw thread is connected with screw rod (18), is equipped on the bottom wall of the screw rod (18)
Second bevel gear (17), and the second bevel gear (17) and the first bevel gear (14) are intermeshed, second bevel gear (17)
Third rotary axis groove is offered on bottom wall, third shaft is fitted in the third rotary axis groove, and third shaft is mounted on the second umbrella
On the roof of gear installation base (16).
4. a kind of applied mathematics problem showing stand according to claim 2, it is characterised in that: second shaft (12)
It is set on lateral wall the first runner (13), the driving end cap of the motor (15) is equipped with the second runner, first runner
(13) with the outer wall of the second runner on together about be equipped with conveyer belt.
5. a kind of applied mathematics problem showing stand according to claim 1, it is characterised in that: displaying sheet frame (7) packet
The first display board (71), the second display board (72), third display board (73) are included, on the inner sidewall for showing that sheet frame (7) are opposite
It is uniformly provided with three display board shifting chutes (76), and the first display board (71), the second display board (72), third display board
(73) it is located in three display board shifting chutes (76), is symmetrically offered on the roof and bottom wall for showing sheet frame (7)
Chuck slot is laid chuck (74) in the chuck slot, is fixedly connected with spring (75) on the bottom wall of the chuck (74).
6. a kind of applied mathematics problem showing stand according to claim 1, it is characterised in that: the displaying plate framework (4)
Transverse arm on be equipped with positive and negative two-way switch (9), and the input terminal electricity of the output end of positive and negative two-way switch (9) and motor (15)
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117641.5U CN209028841U (en) | 2018-07-16 | 2018-07-16 | A kind of applied mathematics problem showing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821117641.5U CN209028841U (en) | 2018-07-16 | 2018-07-16 | A kind of applied mathematics problem showing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209028841U true CN209028841U (en) | 2019-06-25 |
Family
ID=66871234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821117641.5U Expired - Fee Related CN209028841U (en) | 2018-07-16 | 2018-07-16 | A kind of applied mathematics problem showing stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209028841U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675661A (en) * | 2019-11-14 | 2020-01-10 | 南京林业大学 | Landscape design teaching show shelf convenient to revise |
| CN112716176A (en) * | 2021-01-05 | 2021-04-30 | 宏瑞文博集团股份有限公司 | Heavy stone stele double-faced rubbing storage rack for cultural relics |
| CN113197452A (en) * | 2021-05-10 | 2021-08-03 | 刘扬 | Teaching management show shelf |
-
2018
- 2018-07-16 CN CN201821117641.5U patent/CN209028841U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675661A (en) * | 2019-11-14 | 2020-01-10 | 南京林业大学 | Landscape design teaching show shelf convenient to revise |
| CN112716176A (en) * | 2021-01-05 | 2021-04-30 | 宏瑞文博集团股份有限公司 | Heavy stone stele double-faced rubbing storage rack for cultural relics |
| CN113197452A (en) * | 2021-05-10 | 2021-08-03 | 刘扬 | Teaching management show shelf |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 Termination date: 20210716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |