CN107749207A - A kind of formula tester in the teaching for applied mathematics - Google Patents
A kind of formula tester in the teaching for applied mathematics Download PDFInfo
- Publication number
- CN107749207A CN107749207A CN201711085360.6A CN201711085360A CN107749207A CN 107749207 A CN107749207 A CN 107749207A CN 201711085360 A CN201711085360 A CN 201711085360A CN 107749207 A CN107749207 A CN 107749207A
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- groove
- formula
- formula tester
- chute
- tester body
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
The invention discloses the formula tester in a kind of teaching for applied mathematics, including rotating disk and formula tester body, the rotating disk is loop configuration, the rotating disk is rotated and is socketed on formula tester body, and formula tester body top side is extended to outside rotating disk, it is provided between rotating disk and formula the tester body and is used to adjust rotating disk and the first governor motion of formula tester body position relation, formula tester body bottom corner location is equipped with supporting leg, the supporting leg bottom is installed with universal wheel, the second governor motion for being used for adjusting formula tester body height is provided between supporting leg and formula the tester body.The present invention can be easy to adjust height and position and the direction position of formula tester body, meanwhile, it is capable to meet the human users of various positions, it is simple in construction, use stable and convenient.
Description
Technical field
The present invention relates to the formula test in formula tester technical field, more particularly to a kind of teaching for applied mathematics
Device.
Background technology
Applied mathematics main function is the mathematics idea sum thought of training student, and training student solves mathematical problem
Ability, applied mathematics is not only embodied in the application of mathematical knowledge, it is often more important that the mode of thinking of mathematics, it is to culture people's
Thinking, innovation, analysis, calculating, conclusion, inferential capability are all beneficial, but applied mathematics formula is various, if student is without very
Strong willpower is difficult to complete the repetitive memory to formula, also just have impact on the teaching fruit of applied mathematics.But existing test side
Method is all often to be realized on classroom by way of student answers the questions in a test paper, and student feels bored, and dealt with will after examination
Forget, it is difficult to play the effect of repetitive memory, therefore design a kind of reinforcement student to be to the device of application mathematical formulae memory
The technical issues that need to address at present.
The patent of Application No. 201620336850.3 discloses the formula test that a kind is used for during applied mathematics is imparted knowledge to students
Device, including cabinet, sound equipment, fan and processor, the outside of the cabinet are provided with display screen, input are provided with the cabinet
Platform, described input on platform are provided with handwriting pad, a groove and numeric keypad, and the inside of described groove is provided with pressure sensi-tive pen, institute
The outside for stating cabinet is provided with dust-proof mesh enclosure and USB port, and dust-proof mesh enclosure is arranged on the left side of USB port, the cabinet and plug
It is fixedly connected by power line, the inside of the cabinet is installed with memory and voltage-stablizer, and memory is arranged on voltage stabilizing
The left side of device, the processor are fixedly mounted on the top of voltage-stablizer, and the fan is fixedly mounted on the top of processor, described
Thermovent is provided with cabinet, the sound equipment is fixedly mounted on the inside of cabinet.The utility model is simple to operate, is easy to student to examine
The formula memory state of oneself is tested, while also allows teacher's more intuitive understanding student for mastery of knowledge situation, however, existing
The height and position of some formula testers and direction position are fixed, it is impossible to meet that the classmate of various heights is used,
Meanwhile more people with an equipment when, it is impossible to conveniently carry out the operation of operating personnel's conversion, in use, have certain
Limitation.
The content of the invention
Based on technical problem existing for background technology, the formula that the present invention is proposed in a kind of teaching for applied mathematics is surveyed
Try device.
Formula tester in a kind of teaching for applied mathematics proposed by the present invention, including rotating disk and formula tester sheet
Body, the rotating disk are loop configuration, and the rotating disk is rotated and is socketed on formula tester body, and formula tester body top side
Extend to outside rotating disk, be provided between rotating disk and formula the tester body and be used to adjust rotating disk and formula tester body position
First governor motion of relation, formula tester body bottom corner location are equipped with supporting leg, the supporting leg bottom
Universal wheel is installed with, is provided between supporting leg and formula the tester body and is used to adjust formula tester body height
The second governor motion.
Preferably, first governor motion includes the slide rail that annular is arranged on rotating disk inwall, is slided in the slide rail
Two roller bearings are installed, the formula tester body both sides offer the first chute, are slidably installed in first chute
There is the first sliding block, the first sliding block side is extended to outside the first chute, and the side that the first sliding block is located at outside the first chute is opened
Provided with the first groove, first groove is rotatablely connected with side of the roller bearing away from slide rail, on the first groove both sides inwall
Rotating shaft is rotatablely equipped with, two rotating shaft one end close to each other are rotatably installed on the both sides of roller bearing respectively.
Preferably, the side of first sliding block away from roller bearing offers the second groove, activity peace in second groove
Side equipped with limited block, and limited block is extended to outside the second groove, and the second groove is welded with the side inwall away from opening
One end of multiple first springs, the other end of multiple first springs are welded on the side that limited block is located in the second groove, institute
State equidistant apart on side inwall of first chute away from opening and be provided with multiple stopper slots, the limited block and stopper slot phase
Adaptation.
Preferably, the first cunning pearl groove is offered on side inwall of first chute away from opening, described first slides pearl
The first cunning pearl is slidably fitted with groove inwall, the first cunning pearl is in contact with the first sliding block.
Preferably, second governor motion includes the standing groove for being opened in formula tester body bottom corner location,
The supporting leg is slidably mounted in standing groove, and the bottom of supporting leg is extended to outside standing groove, and universal wheel is located at standing groove
Lower section, second spring is welded with the inwall of the standing groove top, the bottom of the second spring is welded on the top of supporting leg
On, the second chute is offered on the side inwall of the standing groove, is slidably fitted with the second sliding block in second chute, second
The side of sliding block is extended to outside the second chute, and the side that is located at outside the second chute of the second sliding block is welded on the side of supporting leg
On, side of the supporting leg away from the second sliding block offers the 3rd groove, and rack is installed with the 3rd groove,
The bottom of the rack is extended to outside standing groove, and the standing groove offers mounting groove on the side inwall away from the second chute,
Electric rotating machine is installed with the inwall of the mounting groove side, rotation is installed with the output shaft of the electric rotating machine
Axle, the rotary shaft are located in mounting groove, and it is fixedly sleeved in rotary shaft have gear, the gear side extends to mounting groove
Outside, and the side that is located at outside mounting groove of gear is extended in the 3rd groove, and gear is located at side and the rack in the 3rd groove
It is meshed.
Preferably, the second cunning pearl groove is offered on side inwall of second chute away from opening, described second slides pearl
The second cunning pearl is slidably fitted with groove inwall, the second cunning pearl is in contact with the second sliding block.
Preferably, rolled on the standing groove inwall and ball is installed, and ball is in contact with supporting leg.
Preferably, the universal wheel top side is installed with flexible rubber pad, and flexible rubber pad and formula detector sheet
Body bottom side is in contact, and the universal wheel includes connecting pole and roller, and roller is rotatably installed on connecting pole, on the connecting pole
Braking vane is rotatablely equipped with by hinge, side of the braking vane away from connecting pole is in contact with roller.
In the present invention, the formula tester in a kind of teaching for applied mathematics, by formula tester body, turn
Disk, slide rail, rotating shaft, the first chute, stopper slot, limited block, the first sliding block, the second groove, the first spring, the first groove, roller bearing
Be used cooperatively so that cross the first sliding block and the first chute and be used cooperatively, adjust the height and position of formula tester body, roller bearing with
Slide rail coordinates, and adjusts the direction position of formula tester body, passes through standing groove, supporting leg, universal wheel, second spring, second
Chute, the second sliding block, the 3rd groove, rack, gear, mounting groove, electric rotating machine, rotary shaft are used cooperatively so that pass through rotation
Motor driven gear rotates, and gear band carry-over bar moves up and down, and rack drives supporting leg moves up and down, and the present invention can be easy to adjust
Height and position and the direction position of formula tester body are saved, meanwhile, it is capable to meet the human users of various positions, structure letter
It is single, use stable and convenient.
Brief description of the drawings
Fig. 1 is the formula tester and rotating disk of the formula tester in a kind of teaching for applied mathematics proposed by the present invention
Attachment structure schematic diagram；
Fig. 2 is the formula tester bulk junction of the formula tester in a kind of teaching for applied mathematics proposed by the present invention
Structure schematic diagram；
Fig. 3 is the part A structural representation of the formula tester in a kind of teaching for applied mathematics proposed by the present invention；
Fig. 4 is the partial structural diagram of the formula tester in a kind of teaching for applied mathematics proposed by the present invention；
Fig. 5 is the part B structural representation of the formula tester in a kind of teaching for applied mathematics proposed by the present invention.
In figure：1 formula tester body, 2 rotating disks, 3 slide rails, 4 rotating shafts, 5 standing grooves, 6 supporting legs, 7 universal wheels, 8 second
Spring, 9 second chutes, 10 second sliding blocks, 11 the 3rd grooves, 12 racks, 13 gears, 14 mounting grooves, 15 electric rotating machines, 16 rotate
Axle, 17 first chutes, 18 stopper slots, 19 limited blocks, 20 first sliding blocks, 21 second grooves, 22 first springs, 23 first grooves,
24 roller bearings.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Embodiment.
Reference picture 1-5, the formula tester in a kind of teaching for applied mathematics, including rotating disk 2 and formula tester sheet
Body 1, rotating disk 2 are loop configuration, and rotating disk 2 is rotated and is socketed on formula tester body 1, and the top side of formula tester body 1 is prolonged
Extend outside rotating disk 2, be provided between rotating disk 2 and formula tester body 1 and be used to adjust rotating disk 2 and the position of formula tester body 1
First governor motion of relation, the bottom corner location of formula tester body 1 are equipped with supporting leg 6, and peace is fixed in the bottom of supporting leg 6
It is provided with equipped with universal wheel 7, between supporting leg 6 and formula tester body 1 and is used to adjust the second of the height of formula tester body 1
Governor motion.The present invention can be easy to adjust height and position and the direction position of formula tester body 1, meanwhile, it is capable to meet
The human users of various positions, it is simple in construction, use stable and convenient.
First governor motion includes the slide rail 3 that annular is arranged on the inwall of rotating disk 2, and two rollings are slidably fitted with slide rail 3
Axle 24, the both sides of formula tester body 1 offer the first chute 17, the first sliding block 20 are slidably fitted with the first chute 17,
The side of first sliding block 20 is extended to outside the first chute 17, and the side that the first sliding block 20 is located at outside the first chute 17 offers first
Groove 23, the first groove 23 are rotatablely connected with side of the roller bearing 24 away from slide rail 3, and peace is rotated on the both sides inwall of the first groove 23
Equipped with rotating shaft 4, two rotating shafts 4 one end close to each other is rotatably installed on the both sides of roller bearing 24 respectively, and the first sliding block 20 is remote
The side of roller bearing 24 offers the second groove 21, and limited block 19, and the side of limited block 19 are movably installed with the second groove 21
Extending to outside the second groove 21, the second groove 12 is welded with one end of multiple first springs 22 on the side inwall away from opening,
The other end of multiple first springs 22 is welded on the side that limited block 19 is located in the second groove 21, and the first chute 17 is kept away
Equidistant apart is provided with multiple stopper slots 18 on the side inwall of mouth, and limited block 19 is adapted with stopper slot 18, the first chute
The first cunning pearl groove is offered on the 17 side inwalls away from opening, the first cunning pearl is slidably fitted with the first cunning pearl groove inwall, the
One cunning pearl is in contact with the first sliding block 20.Pass through formula tester body 1, rotating disk 2, slide rail 3, rotating shaft 4, the first chute 17, limit
Position groove 18, limited block 19, the first sliding block 20, the second groove 21, the first spring 22, the first groove 23, roller bearing 24 are used cooperatively, and are made
The first sliding block 20 must be crossed and the first chute 17 is used cooperatively, adjust the height and position of formula tester body 1, roller bearing 24 and slide rail
3 coordinate, the direction position of regulation formula tester body 1.
Second governor motion includes the standing groove 5 for being opened in the bottom corner location of formula tester body 1, and supporting leg 6 is slided
It is dynamic to be arranged in standing groove 5, and the bottom of supporting leg 6 is extended to outside standing groove 5, universal wheel 7 is located at the lower section of standing groove 5, puts
Put and second spring 8 is welded with the top inwall of groove 5, the bottom of second spring 8 is welded on the top of supporting leg 6, standing groove 5
The second chute 9 is offered on the inwall of side, the second sliding block 10 is slidably fitted with the second chute 9, the side of the second sliding block 10 is prolonged
Extend outside the second chute 9, and the side that the second sliding block 10 is located at outside the second chute 9 is welded on the side of supporting leg 6, supporting leg
6 sides away from the second sliding block 10 offer the 3rd groove 11, and rack 12 is installed with the 3rd groove 11, rack 12
Bottom is extended to outside standing groove 5, and standing groove 5 offers mounting groove 14, mounting groove 14 1 on the side inwall away from the second chute 9
Electric rotating machine 15 is installed with the inwall of side, rotary shaft 16, rotary shaft 16 are installed with the output shaft of electric rotating machine 15
In mounting groove 14, and it is fixedly sleeved in rotary shaft 16 have gear 13, the side of gear 13 is extended to outside mounting groove 14, and gear
13 side outside mounting groove 14 is extended in the 3rd groove 11, and gear 13 is located at side and the rack in the 3rd groove 11
12 are meshed, and the second chute 9 offers the second cunning pearl groove on the side inwall away from opening, and second slides slip peace on pearl groove inwall
Slide pearl equipped with second, the second cunning pearl is in contact with the second sliding block 10, is rolled on the inwall of standing groove 5 and be provided with ball, and ball and
Supporting leg 6 is in contact, and the top side of universal wheel 7 is installed with flexible rubber pad, and flexible rubber pad and the bottom of formula detector body 1
Side is in contact, and universal wheel 7 includes connecting pole and roller, and roller is rotatably installed on connecting pole, is turned on connecting pole by hinge
Dynamic to be provided with braking vane, side of the braking vane away from connecting pole is in contact with roller.Pass through standing groove 5, supporting leg 6, universal wheel
7th, second spring 8, the second chute 9, the second sliding block 10, the 3rd groove 11, rack 12, gear 13, mounting groove 14, electric rotating machine
15th, rotary shaft 16 is used cooperatively so that is rotated by electric rotating machine 15 with moving gear 13, gear 13 on carry-over bar 12 with moving down
Dynamic, rack 12 drives supporting leg 6 to move up and down, and the present invention can be easy to adjust height and position and the side of formula tester body 1
To position, meanwhile, it is capable to meet the human users of various positions, it is simple in construction, use stable and convenient.
The present invention：In use, rotate formula tester body 1 so that formula tester body 1 is by universal wheel 7 on ground
Rotated on face, meanwhile, formula tester body 1 drives the first sliding block 20 to rotate, and the first sliding block 20 drives roller bearing 24 to rotate
Rolled in slide rail 3, when being moved to required position, extrude brake block so that brake block contacts with the roller in universal wheel 7, limit
Universal wheel 7 processed moves；Start electric rotating machine 15, electric rotating machine 15 drives rotary shaft 16 to rotate, and rotary shaft 16 is with 13 turns of moving gear
Dynamic, gear 13 moves up and down with carry-over bar 12, and rack 12 drives supporting leg 6 to move up and down, and supporting leg 6 drives the second sliding block 10 to exist
Slided in second chute 9, meanwhile, drive formula tester body 1 to move up and down when supporting leg 6 moves up and down, formula tester
Body 1 drives the first sliding block 20 to be slided in the first chute 17, and, the first sliding block 20 drives limited block 19 in the first chute 17
Slide, limited block 19 is moved in the stopper slot 18 in the first chute 17, reaches the firm height and position of formula tester body 1
Purpose.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. the formula tester in a kind of teaching for applied mathematics, including rotating disk (2) and formula tester body (1), it is special
Sign is that the rotating disk (2) is loop configuration, and the rotating disk (2) rotates and is socketed on formula tester body (1), and formula
Tester body (1) top side extends to rotating disk (2) outside, is provided between the rotating disk (2) and formula tester body (1) and is used to adjust
Save first governor motion of rotating disk (2) and formula tester body (1) position relationship, formula tester body (1) bottom
Corner location is equipped with supporting leg (6), and supporting leg (6) bottom is installed with universal wheel (7), the supporting leg (6) with
The second governor motion for being used for adjusting formula tester body (1) height is provided between formula tester body (1).
2. the formula tester in a kind of teaching for applied mathematics according to claim 1, it is characterised in that described the
One governor motion includes the slide rail (3) that annular is arranged on rotating disk (2) inwall, and two rollings are slidably fitted with the slide rail (3)
Axle (24), formula tester body (1) both sides offer the first chute (17), peace are slided in first chute (17)
Equipped with the first sliding block (20), the first sliding block (20) side extends to the first chute (17) outside, and the first sliding block (20) is located at
The side of first chute (17) outside offers the first groove (23), and first groove (23) is with roller bearing (24) away from slide rail (3)
Side rotation connection, rotating shaft (4) is rotatablely equipped with the inwall of the first groove (23) both sides, two rotating shafts (4) are mutual
Close one end is rotatably installed on the both sides of roller bearing (24) respectively.
3. the formula tester in a kind of teaching for applied mathematics according to claim 2, it is characterised in that described the
Side of one sliding block (20) away from roller bearing (24) offers the second groove (21), and limit is movably installed with second groove (21)
Position block (19), and the side of limited block (19) extends to the second groove (21) outside, in side of the second groove (12) away from opening
One end of multiple first springs (22) is welded with wall, the other end of multiple first springs (22) is welded on limited block (19) and is located at
On side in second groove (21), equidistant apart is provided with more on side inwall of first chute (17) away from opening
Individual stopper slot (18), the limited block (19) are adapted with stopper slot (18).
4. the formula tester in a kind of teaching for applied mathematics according to claim 2, it is characterised in that described the
One chute (17) offers the first cunning pearl groove on the side inwall away from opening, be slidably fitted with the first cunning pearl groove inwall
First slides pearl, and the first cunning pearl is in contact with the first sliding block (20).
5. the formula tester in a kind of teaching for applied mathematics according to claim 1, it is characterised in that described the
Two governor motions include the standing groove (5) for being opened in formula tester body (1) bottom corner location, and the supporting leg (6) is sliding
It is dynamic to be arranged in standing groove (5), and the bottom of supporting leg (6) extends to standing groove (5) outside, universal wheel (7) is located at standing groove (5)
Lower section, be welded with second spring (8) on the inwall of standing groove (5) top, the bottom of the second spring (8) is welded on branch
On the top of support leg (6), the second chute (9) is offered on the side inwall of the standing groove (5), second chute (9) is interior
The second sliding block (10) is slidably fitted with, the side of the second sliding block (10) extends to the second chute (9) outside, and the second sliding block (10) position
It is welded in the side of the second chute (9) outside on the side of supporting leg (6), remote second sliding block (10) of the supporting leg (6)
Side offers the 3rd groove (11), and rack (12) is installed with the 3rd groove (11), the rack (12)
Bottom extends to standing groove (5) outside, and the standing groove (5) offers mounting groove on the side inwall away from the second chute (9)
(14) electric rotating machine (15), the output shaft of the electric rotating machine (15), are installed with the inwall of mounting groove (14) side
On be installed with rotary shaft (16), the rotary shaft (16) is located in mounting groove (14), and fixedly sleeved in rotary shaft (16)
There is gear (13), gear (13) side extends to mounting groove (14) outside, and gear (13) is located at one of mounting groove (14) outside
Side is extended in the 3rd groove (11), and the side that gear (13) is located in the 3rd groove (11) is meshed with rack (12).
6. the formula tester in a kind of teaching for applied mathematics according to claim 5, it is characterised in that described the
Two chutes (9) offer the second cunning pearl groove on the side inwall away from opening, be slidably fitted with the second cunning pearl groove inwall
Second slides pearl, and the second cunning pearl is in contact with the second sliding block (10).
7. the formula tester in a kind of teaching for applied mathematics according to claim 5, it is characterised in that described to put
Put to roll on groove (5) inwall and ball is installed, and ball is in contact with supporting leg (6).
8. the formula tester in a kind of teaching for applied mathematics according to claim 1, it is characterised in that described ten thousand
Flexible rubber pad is installed with to wheel (7) top side, and flexible rubber pad is in contact with formula detector body (1) bottom side, institute
Stating universal wheel (7) includes connecting pole and roller, and roller is rotatably installed on connecting pole, is rotated on the connecting pole by hinge
Braking vane is installed, side of the braking vane away from connecting pole is in contact with roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085360.6A CN107749207A (en) | 2017-11-07 | 2017-11-07 | A kind of formula tester in the teaching for applied mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085360.6A CN107749207A (en) | 2017-11-07 | 2017-11-07 | A kind of formula tester in the teaching for applied mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107749207A true CN107749207A (en) | 2018-03-02 |
Family
ID=61250761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711085360.6A Pending CN107749207A (en) | 2017-11-07 | 2017-11-07 | A kind of formula tester in the teaching for applied mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107749207A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203091212U (en) * | 2012-12-28 | 2013-07-31 | 青岛科瑞新型环保材料有限公司 | Improved material leveling roller height adjusting device |
| CN106448417A (en) * | 2016-11-29 | 2017-02-22 | 天津健康家园科技有限公司 | Sand table used for psychological education and having height adjustment function |
| CN205985843U (en) * | 2016-08-30 | 2017-02-22 | 江山海维科技有限公司 | Intelligent switch cabinet with conveniently remove function |
| CN206293083U (en) * | 2016-11-01 | 2017-06-30 | 河南机电高等专科学校 | A kind of embedded Venture projects displaying sand table device |
| CN107104630A (en) * | 2017-07-04 | 2017-08-29 | 合肥庭鸾能源有限公司 | It is a kind of to be easy to mobile device of solar generating |
| CN107232837A (en) * | 2017-08-02 | 2017-10-10 | 安吉飞龙金属制品厂 | Revolving chair tray torsion spring governor motion |
-
2017
- 2017-11-07 CN CN201711085360.6A patent/CN107749207A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203091212U (en) * | 2012-12-28 | 2013-07-31 | 青岛科瑞新型环保材料有限公司 | Improved material leveling roller height adjusting device |
| CN205985843U (en) * | 2016-08-30 | 2017-02-22 | 江山海维科技有限公司 | Intelligent switch cabinet with conveniently remove function |
| CN206293083U (en) * | 2016-11-01 | 2017-06-30 | 河南机电高等专科学校 | A kind of embedded Venture projects displaying sand table device |
| CN106448417A (en) * | 2016-11-29 | 2017-02-22 | 天津健康家园科技有限公司 | Sand table used for psychological education and having height adjustment function |
| CN107104630A (en) * | 2017-07-04 | 2017-08-29 | 合肥庭鸾能源有限公司 | It is a kind of to be easy to mobile device of solar generating |
| CN107232837A (en) * | 2017-08-02 | 2017-10-10 | 安吉飞龙金属制品厂 | Revolving chair tray torsion spring governor motion |
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Application publication date: 20180302 |