CN113506505A - A simulation demonstration sand table for economic management - Google Patents
A simulation demonstration sand table for economic management Download PDFInfo
- Publication number
- CN113506505A CN113506505A CN202110809899.1A CN202110809899A CN113506505A CN 113506505 A CN113506505 A CN 113506505A CN 202110809899 A CN202110809899 A CN 202110809899A CN 113506505 A CN113506505 A CN 113506505A
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- 239000004576 sand Substances 0.000 title claims abstract description 88
- 238000004088 simulation Methods 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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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
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/06—Reading-desks; Lecterns; Pulpits, i.e. free-standing with adjustable top leaf
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/10—Adjustable or foldable or dismountable display stands
-
- 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
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/18—Book-keeping or economics
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Economics (AREA)
- General Business, Economics & Management (AREA)
- Development Economics (AREA)
- Accounting & Taxation (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a simulation demonstration sand table for economic management, which comprises a demonstration groove, a transparent plastic plate, a cover plate, a switch, a bottom plate, a self-locking universal wheel, a lifting mechanism, a through hole, a mounting box, a hinge joint, a sand table, a support plate, an angle adjusting mechanism, a storage groove and a pointer placing groove, wherein the hinge joint is symmetrically arranged at the bottom of one side of the sand table, the lifting mechanism is arranged to realize the lifting of the sand table, the height of the sand table can be adjusted according to the practical demonstration condition, the practicability of the device is improved, the angle adjusting mechanism is arranged to be favorable for adjusting the display angle of the sand table, the back-row students can conveniently watch the sand table demonstration, the demonstration range of the sand table can be expanded, the storage of tools can be favorably realized through the arrangement of the storage groove and the pointer placing groove, meanwhile, the occurrence of the condition that the sand table is exposed outside can be avoided through the design of a detachable cover plate, dust on the sand table is reduced, and the cleaning difficulty is greatly reduced.
Description
Technical Field
The invention relates to the technical field of sand tables, in particular to a simulation demonstration sand table for economic management.
Background
The sand table is a model piled by silt, weapons and other materials according to a certain proportion relation according to a topographic map, an aviation photograph or a field topography, the sand table has a plurality of types, and is divided into a military sand table, a demonstration sand table, an electronic sand table and the like, the application range of the sand table is wide, and the sand table is often used for simulation teaching in economic management teaching.
The sand table on the market is various and can basically meet the use requirements of people, but certain defects still exist, and the specific problems are as follows.
(1) Most of the existing sand tables are fixed sand tables, the height is fixed, the height cannot be adjusted according to the practical teaching condition, and the practicability of the equipment is reduced;
(2) in the process of carrying out simulation demonstration of economic management on the existing sand table, the demonstration angle of the sand table is not adjustable, when a large number of students exist, the situation that the students cannot see the sand table clearly in the horizontal demonstration of the sand table can occur, and the demonstration range of the sand table is reduced;
(3) need use more appurtenance at the teaching in-process that utilizes demonstration sand table to carry out economic management, the instrument is stacked at will and is seemingly disorderly to sand table most expose outside, a large amount of dusts can be attached to the sand table surface, greatly increased the degree of difficulty of clearance.
Disclosure of Invention
The invention aims to provide a simulation demonstration sand table for economic management, which aims to solve the problems of unadjustable height, small demonstration range and high cleaning difficulty in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a simulation demonstration sand table for economic management, includes demonstration groove, transparent plastic board, apron, switch, bottom plate, auto-lock universal wheel, elevating system, through-hole, mounting box, hinge, sand table, backup pad, angle adjustment mechanism, storing groove and teacher's pointer standing groove, sand table one side bottom symmetry is provided with the hinge, and the sand table is articulated with mounting box top one side through the hinge, and the inside bottom surface fixedly connected with angle adjustment mechanism of mounting box, and the central welding of mounting box bottom has the backup pad, and the central fixedly connected with elevating system in backup pad bottom.
Preferably, the angle adjusting mechanism comprises a first fixed seat, a connecting rod, a second fixed seat, a fixed block, a screw rod, a movable block, a servo motor, a driving bevel gear, a base and a driven bevel gear, wherein the base is installed on one side of the bottom surface inside the mounting box, the servo motor is welded at the center of the top of the base, the output end of the servo motor is fixedly sleeved with the driving bevel gear, the outer circumference of the driving bevel gear is meshed with the outer circumference of the driven bevel gear, the driven bevel gear is fixedly sleeved at one end of the screw rod, the other end of the screw rod is movably sleeved with the movable block, the movable block and the screw rod are connected in a matched manner through a ball nut, the two ends of the screw rod are respectively and rotatably connected with the fixed blocks, the fixed blocks are respectively installed at the centers of the two sides inside the mounting box, the center of the top of the movable block is fixedly connected with the second fixed seat, the top of the second fixed seat is hinged with one end of the connecting rod, and the other end of the connecting rod is hinged with the bottom of the first fixed seat, first fixing base fixed mounting is in sand table bottom one side.
Preferably, elevating system includes rack, fixed sleeve, baffle, mount pad, guide arm, guide way, straight-teeth gear, fixed axle and servo motor, and the welding of backup pad bottom center has the rack, and the through-hole is run through in the activity of upper portion in the rack, and the through-hole is seted up at fixed sleeve top center, and the inside top surface both sides of fixed sleeve have welded the mount pad respectively, servo motor is installed to mount pad bottom center, and the welding of servo motor output has the fixed axle, servo motor's one end is kept away from to the fixed axle has cup jointed straight-teeth gear, the outer circumference of straight-teeth gear respectively with the meshing of rack both sides.
Preferably, the baffle is fixedly connected to the bottom end of the rack, the guide groove is formed in the center of the inside of the rack, the guide rod is connected to the inside of the guide groove in a sliding mode, the guide rod penetrates through the bottom end of the rack in a movable mode, and the bottom of the guide rod is fixedly connected with the center of the bottom face of the inside of the fixing sleeve.
Preferably, the bottom plate is installed to fixed sleeve bottom, and bottom plate upper surface center and fixed sleeve bottom welding, and bottom plate bottom four corners position is respectively through bolt fixedly connected with auto-lock universal wheel.
Preferably, the servo motor and the servo motor are electrically connected with a power supply through wires.
Preferably, the switch is fixedly mounted at the center of the adjacent side of the hinge joint on the mounting box, and the switch is electrically connected with the servo motor through a wire.
Preferably, the demonstration groove has been seted up to sand table upper surface one side, and the activity of upper portion is pegged graft in the demonstration groove and is had transparent plastic board, and four storing grooves and a teacher's pointer standing groove have evenly been seted up to sand table upper surface opposite side, and storing groove and teacher's pointer standing groove top lid have closed the apron.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the sand table lifting device, the lifting of the sand table is realized through the arrangement of the lifting mechanism, the height of the sand table can be adjusted according to the practical demonstration condition, and the practicability of the device is improved;
2. the angle adjusting mechanism is arranged, so that the display angle of the sand table can be adjusted, students in the back row can watch the sand table for demonstration conveniently, and the demonstration range of the sand table can be expanded;
3. the sand table is beneficial to realizing the storage of tools by arranging the storage groove and the pointer placing groove, and meanwhile, the sand table is prevented from being exposed outside by the design of the detachable cover plate, so that the dust on the sand table is reduced, and the cleaning difficulty is greatly reduced.
Drawings
FIG. 1 is a perspective view of the overall construction of the present invention;
FIG. 2 is an elevational view of the overall construction of the present invention;
FIG. 3 is a front cross-sectional view of the overall construction of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3 according to the present invention;
FIG. 5 is a partial sectional view of the present invention;
FIG. 6 is a partial sectional view of the sand table of the present invention after angular adjustment;
FIG. 7 is a top cross-sectional view of the overall structure of the present invention;
in the figure: 1. a demonstration slot; 2. a transparent plastic plate; 3. a cover plate; 4. a switch; 5. a base plate; 6. a self-locking universal wheel; 7. a lifting mechanism; 8. a through hole; 9. mounting a box; 10. a hinge joint; 11. a sand table; 12. a support plate; 13. an angle adjusting mechanism; 14. a storage tank; 15. a pointer placing groove; 1301. a first fixed seat; 1302. a connecting rod; 1303. a second fixed seat; 1304. a fixed block; 1305. a lead screw; 1306. a movable block; 1307. a servo motor; 1308. a drive bevel gear; 1309. a base; 1310. a driven bevel gear; 701. a rack; 702. fixing the sleeve; 703. a baffle plate; 704. a mounting seat; 705. a guide bar; 706. a guide groove; 707. a spur gear; 708. a fixed shaft; 709. a servo motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, an embodiment of the present invention is shown: a simulation demonstration sand table for economic management comprises a demonstration groove 1, a transparent plastic plate 2, a cover plate 3, a switch 4, a bottom plate 5, a self-locking universal wheel 6, a lifting mechanism 7, a through hole 8, a mounting box 9, a hinge joint 10, a sand table 11, a support plate 12, an angle adjusting mechanism 13, a storage groove 14 and a pointer placing groove 15, wherein the demonstration groove 1 is formed in one side of the upper surface of the sand table 11, the transparent plastic plate 2 is movably inserted in the middle upper portion of the demonstration groove 1, four storage grooves 14 and a pointer placing groove 15 are uniformly formed in the other side of the upper surface of the sand table 11, the cover plate 3 covers the top of the storage grooves 14 and the pointer placing groove 15, the hinge joint 10 is symmetrically arranged at the bottom of one side of the sand table 11, the sand table 11 is hinged with one side of the top of the mounting box 9 through the hinge joint 10, the switch 4 is fixedly installed in the center of one side, which is adjacent to the hinge joint 10, and the switch 4 is electrically connected with a servo motor 1307 through a lead, an angle adjusting mechanism 13 is fixedly connected to the bottom surface inside the mounting box 9, the angle adjusting mechanism 13 comprises a first fixed seat 1301, a connecting rod 1302, a second fixed seat 1303, a fixed block 1304, a lead screw 1305, a movable block 1306, a servo motor 1307, a driving bevel gear 1308, a base 1309 and a driven bevel gear 1310, the base 1309 is installed on one side of the bottom surface inside the mounting box 9, the servo motor 1307 is welded at the top center of the base 1309, the driving bevel gear 1308 is fixedly connected to the output end of the servo motor 1307 in a sleeved mode, the outer circumference of the driving bevel gear 1308 is meshed with the outer circumference of the driven bevel gear, the driven bevel gear 1310 is fixedly connected to one end of the lead screw 1305 in a sleeved mode, the movable block 1306 is movably sleeved at the other end of the lead screw 1305, the movable block 1306 is connected with the lead screw 1305 in a matched mode through a ball nut, the two ends of the lead screw 1305 are respectively and rotatably connected with the fixed blocks 1304, the fixed blocks 1304 are respectively installed at the centers of the two sides inside the mounting box 9, the top center of the movable block 1306 is fixedly connected with the second fixed seat 1303, the top of the second fixing seat 1303 is hinged with one end of a connecting rod 1302, the other end of the connecting rod 1302 is hinged with the bottom of the first fixing seat 1301, the first fixing seat 1301 is fixedly installed on one side of the bottom of the sand table 11, and is favorable for realizing the angle adjustment of the sand table 11, a supporting plate 12 is welded at the center of the bottom of the mounting box 9, a lifting mechanism 7 is fixedly connected with the center of the bottom of the supporting plate 12, the lifting mechanism 7 comprises a rack 701, a fixing sleeve 702, a baffle 703, a mounting seat 704, a guide rod 705, a guide groove 706, a straight gear 707, a fixing shaft 708 and a servo motor 709, a rack 701 is welded at the center of the bottom of the supporting plate 12, the bottom end of the rack 701 is fixedly connected with the baffle 703, the guide groove 706 is formed in the center of the rack 701, the guide rod 705 is slidably connected with the guide rod 705 movably penetrates through the bottom end of the rack 701, the bottom of the guide rod 705 is fixedly connected with the center of the bottom surface of the fixing sleeve 702, and the middle upper portion of the rack 701 movably penetrates through a through hole 8, through-hole 8 is seted up at fixed sleeve 702 top center, and the inside top surface both sides of fixed sleeve 702 have welded mount pad 704 respectively, servo motor 709 is installed at mount pad 704 bottom center, servo motor 709 and servo motor 1307 all pass through wire and power electric connection, and the welding of servo motor 709 output has fixed axle 708, straight-toothed gear 707 has been cup jointed to the one end that servo motor 709 was kept away from to fixed axle 708, straight-toothed gear 707 outer circumference respectively with rack 701 both sides meshing, bottom plate 5 is installed to fixed sleeve 702 bottom, and bottom plate 5 upper surface center and fixed sleeve 702 bottom welding, bottom plate 5 bottom four corners position is respectively through bolt fixedly connected with auto-lock universal wheel 6, be favorable to coming the mobile device through auto-lock universal wheel 6.
The working principle is as follows: when the sand table is used, firstly, the equipment is pushed to a designated place through the self-locking universal wheel 6, then the self-locking universal wheel 6 is locked, at the moment, the height of the sand table 11 is adjusted according to the actual height of a placing plane, the servo motor 709 is opened, the output end of the servo motor 709 starts to rotate, then the straight gear 707 is driven to rotate, the rack 701 is driven to move upwards along the direction of the guide rod 705, then the support plate 12 is driven to move upwards, the mounting box 9 is driven to move upwards, then the sand table 11 is driven to move upwards, the sand table 11 is lifted, the servo motor 709 is reversed, the sand table 11 is lowered, the height of the sand table 11 is adjusted according to the actual situation, the practicability of the equipment is improved, the rotating speeds of the two servo motors 709 are the same, the rotating directions are opposite, when the height of the sand table 11 is adjusted to be proper, the transparent plastic plate 2 is drawn out, and the sand table 11 is utilized for simulation demonstration of economic management, auxiliary tools in the demonstration process are stored in the storage groove 14 and the pointer placing groove 15, after the demonstration is finished, the transparent plastic plate 2 is inserted, dust is effectively prevented from falling on the sand table 11, the cleaning difficulty of the sand table 11 is greatly reduced, when the demonstration angle of the sand table 11 needs to be adjusted, the servo motor 1307 is opened, the output end of the servo motor 1307 starts to rotate, then the driving bevel gear 1308 is driven to rotate, then the driven bevel gear 1310 is driven to rotate, then the lead screw 1305 is driven to rotate, so that the movable block 1306 is driven to slide towards the servo motor 1307 along the lead screw 1305, then the second fixing seat 1303 is driven to slide towards the servo motor 1307, then one end of the connecting rod 1302 is driven to slide towards the servo motor 1307, because the other end of the connecting rod 1302 is hinged with the first fixing seat 1301, the first fixing seat 1301 is driven to rotate around the hinge joint 10, then the sand table 11 is driven to rotate around the joint 10, thereby finishing the adjustment of the displaying angle of the sand table 11 and being beneficial to expanding the displaying range of the sand table 11.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a simulation demonstration sand table for economic management, includes demonstration groove (1), transparent plastic board (2), apron (3), switch (4), bottom plate (5), auto-lock universal wheel (6), elevating system (7), through-hole (8), mounting box (9), articulated joint (10), sand table (11), backup pad (12), angle adjustment mechanism (13), storing groove (14) and teacher's pointer standing groove (15), its characterized in that: the sand table is characterized in that hinges (10) are symmetrically arranged at the bottom of one side of the sand table (11), the sand table (11) is hinged to one side of the top of the mounting box (9) through the hinges (10), an angle adjusting mechanism (13) is fixedly connected to the bottom surface inside the mounting box (9), a supporting plate (12) is welded to the center of the bottom of the mounting box (9), and a lifting mechanism (7) is fixedly connected to the center of the bottom of the supporting plate (12).
2. A simulated presentation sand table for economic management according to claim 1, wherein: the angle adjusting mechanism (13) comprises a first fixed seat (1301), a connecting rod (1302), a second fixed seat (1303), a fixed block (1304), a screw (1305), a movable block (1306), a servo motor (1307), a driving bevel gear (1308), a base (1309) and a driven bevel gear (1310), wherein the base (1309) is installed on one side of the inner bottom surface of the mounting box (9), the servo motor (1307) is welded at the center of the top of the base (1309), the output end of the servo motor (1307) is fixedly connected with the driving bevel gear (1308) in a sleeved mode, the outer circumference of the driving bevel gear (1308) is meshed with the outer circumference of the driven bevel gear (1310), the driven bevel gear (1310) is fixedly connected with one end of the screw (1305) in a sleeved mode, the movable block (1306) is movably sleeved at the other end of the screw (1305), the movable block (1306) is connected with the screw (1305) in a matched mode through a ball nut, the two ends of the screw (1305) are respectively and rotatably connected with the fixed block (1304), and fixed block (1304) are respectively installed in the center of the two sides in mounting box (9), the center of the top of movable block (1306) is fixedly connected with second fixed seat (1303), the top of second fixed seat (1303) is hinged with one end of connecting rod (1302), the other end of connecting rod (1302) is hinged with the bottom of first fixed seat (1301), and first fixed seat (1301) is fixedly installed on one side of the bottom of sand table (11).
3. A simulated presentation sand table for economic management according to claim 1, wherein: elevating system (7) are including rack (701), fixed sleeve (702), baffle (703), mount pad (704), guide arm (705), guide way (706), spur gear (707), fixed axle (708) and servo motor (709), the center welding of backup pad (12) bottom has rack (701), and the activity of upper portion runs through-hole (8) in rack (701), through-hole (8) are seted up at fixed sleeve (702) top center, and fixed sleeve (702) inside top surface both sides have welded mount pad (704) respectively, servo motor (709) are installed to mount pad (704) bottom center, and servo motor (709) output welding has fixed axle (708), straight gear (707) have been cup jointed to the one end that servo motor (709) were kept away from in fixed axle (708), straight gear (707) outer circumference respectively with rack (701) both sides meshing.
4. A simulated presentation sand table for economic management according to claim 3, wherein: the bottom end of the rack (701) is fixedly connected with a baffle (703), the center inside the rack (701) is provided with a guide groove (706), the inside of the guide groove (706) is slidably connected with a guide rod (705), the guide rod (705) movably penetrates through the bottom end of the rack (701), and the bottom of the guide rod (705) is fixedly connected with the center of the bottom surface inside the fixing sleeve (702).
5. A simulated presentation sand table for economic management according to claim 4, wherein: bottom plate (5) are installed to fixed sleeve (702) bottom, and bottom plate (5) upper surface center and fixed sleeve (702) bottom welding, and bottom plate (5) bottom four corners position is respectively through bolt fixedly connected with auto-lock universal wheel (6).
6. A simulated presentation sand table for economic management according to claim 3, wherein: the servo motor (709) and the servo motor (1307) are electrically connected with a power supply through leads.
7. A simulated presentation sand table for economic management according to claim 1, wherein: the switch (4) is fixedly mounted in the center of the adjacent side of the hinge joint (10) on the mounting box (9), and the switch (4) is electrically connected with the servo motor (1307) through a lead.
8. A simulated presentation sand table for economic management according to claim 1, wherein: demonstration groove (1) has been seted up to sand table (11) upper surface one side, and the activity of upper portion is pegged graft in demonstration groove (1) has transparent plastic board (2), and sand table (11) upper surface opposite side has evenly seted up four storing grooves (14) and a teacher's pointer standing groove (15), and storing groove (14) and teacher's pointer standing groove (15) top lid have closed apron (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110809899.1A CN113506505A (en) | 2021-07-17 | 2021-07-17 | A simulation demonstration sand table for economic management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110809899.1A CN113506505A (en) | 2021-07-17 | 2021-07-17 | A simulation demonstration sand table for economic management |
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| Publication Number | Publication Date |
|---|---|
| CN113506505A true CN113506505A (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110809899.1A Pending CN113506505A (en) | 2021-07-17 | 2021-07-17 | A simulation demonstration sand table for economic management |
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| CN (1) | CN113506505A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495688A (en) * | 2022-02-22 | 2022-05-13 | 西安大峡谷视觉科技有限公司 | Multifunctional novel sand table |
| CN116189527A (en) * | 2023-03-04 | 2023-05-30 | 许希洁 | Simulation training device and simulation method for business management teaching |
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| CN211087658U (en) * | 2020-01-13 | 2020-07-24 | 漯河食品职业学院 | Economic management is with simulation sand table structure |
| CN211319525U (en) * | 2020-03-23 | 2020-08-21 | 湖北师范大学 | Economics simulation sand table |
| CN212938875U (en) * | 2019-07-01 | 2021-04-13 | 桂林理工大学南宁分校 | Simulation sand table for marketing teaching experiments |
| CN213691165U (en) * | 2020-12-23 | 2021-07-13 | 李金堂 | Sand table for hydraulic reservoir engineering management |
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| CN205334799U (en) * | 2015-12-09 | 2016-06-22 | 东北电力大学 | A multi -functional experimental device for art teaching |
| CN209928794U (en) * | 2019-04-08 | 2020-01-10 | 南京机电职业技术学院 | Sand table display device for training |
| CN212938875U (en) * | 2019-07-01 | 2021-04-13 | 桂林理工大学南宁分校 | Simulation sand table for marketing teaching experiments |
| CN211087658U (en) * | 2020-01-13 | 2020-07-24 | 漯河食品职业学院 | Economic management is with simulation sand table structure |
| CN211319525U (en) * | 2020-03-23 | 2020-08-21 | 湖北师范大学 | Economics simulation sand table |
| CN213691165U (en) * | 2020-12-23 | 2021-07-13 | 李金堂 | Sand table for hydraulic reservoir engineering management |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114495688A (en) * | 2022-02-22 | 2022-05-13 | 西安大峡谷视觉科技有限公司 | Multifunctional novel sand table |
| CN114495688B (en) * | 2022-02-22 | 2024-01-30 | 西安大峡谷视觉科技有限公司 | Multifunctional novel sand table |
| CN116189527A (en) * | 2023-03-04 | 2023-05-30 | 许希洁 | Simulation training device and simulation method for business management teaching |
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Application publication date: 20211015 |