CN107507506A - One kind is used for educational robot model - Google Patents

One kind is used for educational robot model Download PDF

Info

Publication number
CN107507506A
CN107507506A CN201710851204.XA CN201710851204A CN107507506A CN 107507506 A CN107507506 A CN 107507506A CN 201710851204 A CN201710851204 A CN 201710851204A CN 107507506 A CN107507506 A CN 107507506A
Authority
CN
China
Prior art keywords
installing plate
mounting bracket
stirring
pull rope
agitation
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.)
Pending
Application number
CN201710851204.XA
Other languages
Chinese (zh)
Inventor
李公法
罗博文
刘洪海
赵颢云
蒋国璋
孔建益
熊禾跟
陶波
许爽
江都
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
Original Assignee
Wuhan University of Science and Engineering WUSE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan University of Science and Engineering WUSE filed Critical Wuhan University of Science and Engineering WUSE
Priority to CN201710851204.XA priority Critical patent/CN107507506A/en
Publication of CN107507506A publication Critical patent/CN107507506A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/02Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Toys (AREA)

Abstract

The present invention relates to one kind to be used for educational robot model, includes for educational robot model:Execution system, the bearing power of execution system is N0;For driving the first power set of execution system, the power output of the first power set is N1;Energy storage units, it is connected with the first power set, for storing the energy from the first power set;For driving the second power set of execution system, the second power set are connected with energy storage units, and the power output of the second power set is N2.

Description

One kind is used for educational robot model
Technical field
The present invention relates to teaching demonstration utensil field, more particularly to one kind to be used for educational robot model.
Background technology
In China Higher universities and colleges, secondary vocational universities and colleges and education of skilled workers class school, the student of Engineering Speciality is relatively more, and And the students' union of Engineering Speciality contacts many engineering equipments, such as rig, shaker machine, disintegrating machine etc..In order that student is formed It is directly perceived and deep impression, teacher have been intended to model to be imparted knowledge to students, but the existing mould on exercisable engineering equipment Type is deficienter.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and are used for educational robot model, to overcome above-mentioned existing skill Deficiency in art.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:One kind is used for educational robot model, including agitation Mechanism, discharging mechanism, material transfer device, the discharging opening of stirring mechanism are connected with the charging aperture of discharging mechanism, material transfer dress Put for by the charging aperture of the material transfer that discharging mechanism discharging opening is discharged to stirring mechanism;Stirring mechanism includes agitation Cylinder, stirring shaft, agitation blades, stirring motor, one end of stirring shaft are connected with the output shaft of stirring motor, stirring shaft it is another End is extend into agitation cylinder, and agitation blades are arranged on stirring shaft and extend on the part in agitation cylinder, and agitation cylinder uses transparent material Material is made;Discharging mechanism includes discharge barrel, discharging machine, feeding spiral rod, and discharge barrel is arranged on the lower section of agitation cylinder, stirs cylinder Discharging opening be connected with discharge barrel;One end of feeding spiral rod is connected with the output end of discharging machine, feeding spiral rod The other end is extend into discharge barrel, and discharge barrel is made of transparent material;Material transfer device includes receiving hopper, mounting bracket, water Horizontal sliding row mechanism, elevated height mechanism, shedding mechanism, mounting bracket is set in elevated height mechanism, and mounting bracket is in elevated height It can be moved up and down in the presence of mechanism;Level is carried out mechanism and is arranged on mounting bracket, and receiving hopper is arranged on horizontal implementation machine On structure, receiving hopper is carried out to be moved horizontally in the presence of mechanism in level;Shedding mechanism one end is connected with mounting bracket, unloads Expect that the other end of mechanism and level are carried out mechanism and be connected.
The beneficial effects of the invention are as follows:This model structure is simple, drive connection is explicit, in addition, using transparent configuration Design, after powered up, student can be facilitated to be apparent from operation principle and transmission matching relationship, can preferably reach demonstration effect Fruit, strengthen the understanding to professional knowledge and thinking skills training, and in presentation process, it is possible to achieve automatic discharging and automatic Feeding.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, horizontal mechanism of carrying out includes the first installing plate, the second installing plate, the 3rd installing plate, the first electric pushrod, First installing plate is arranged horizontally on mounting bracket, and the left end of the first installing plate is hinged with mounting bracket;Under second installing plate End is fixedly connected with the right-hand member of the first installing plate;3rd installing plate is slidably arranged on the first installing plate, and receiving hopper is fixed on On three installing plates, one end of the first electric pushrod is connected with the second installing plate, the other end and receiving hopper of the first electric pushrod It is connected.
Further, shedding mechanism includes the 4th installing plate, the second electric pushrod, and the 4th installing plate is arranged under mounting bracket Side, the second electric pushrod are fixed on mounting bracket, and the output end of the second electric pushrod is hinged with the first installing plate.
Further, elevated height mechanism is led including the first column, the second column, the first directive wheel, the second directive wheel, first Messenger, the second pull rope, the first coiling electric motor, the second coiling electric motor, the left end of mounting bracket are slidably connected with the first column, installation The right-hand member of frame is slidably connected with the second column;One end of first pull rope is connected with mounting bracket, the other end of the first pull rope It is connected with the output end of the first coiling electric motor, the first directive wheel is arranged on the first column, the first directive wheel and the first traction Rope is engaged;One end of second pull rope is connected with mounting bracket, and the other end of the second pull rope is defeated with the second coiling electric motor Go out end to be connected, the second directive wheel is arranged on the second column, and the second directive wheel is engaged with the second pull rope.
It is using above-mentioned further beneficial effect:It is simple in construction, stability is good.
Further, stirring mechanism also includes scraping materials and parts, and scraping materials and parts includes material scraping plate, connecting rod, and one end of connecting rod is with stirring Moving axis is connected, and the other end of connecting rod is connected with material scraping plate, the one end of material scraping plate away from connecting rod and the inwall of agitation cylinder It is in contact.
Further, material scraping plate includes plate body, bristle, and bristle is arranged on plate body, and plate body is connected with connecting rod.
It is using above-mentioned further beneficial effect:In presentation process, the clean of agitation cylinder inwall is can guarantee that, it is convenient to learn Raw observation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention for educational robot model;
Fig. 2 is the structural representation of elevated height mechanism;
Fig. 3 is the part-structure schematic diagram of material transfer device;
Fig. 4 is the structural representation for scraping materials and parts.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, stirring mechanism, 110, agitation cylinder, 120, stirring shaft, 130, agitation blades, 140, stirring motor, 150, scraper Part, 151, material scraping plate, 152, connecting rod, 2, discharging mechanism, 210, discharge barrel, 220, discharging machine, 230, feeding spiral rod, 3, Material transfer device, 310, receiving hopper, 320, mounting bracket, 330, horizontal carry out mechanism, the 331, first installing plate, the 332, second peace Loading board, the 333, the 3rd installing plate, the 334, first electric pushrod, 340, elevated height mechanism, the 341, first column, 342, second is vertical Post, the 343, first directive wheel, the 344, second directive wheel, the 345, first pull rope, the 346, second pull rope, the 347, first coiling electricity Machine, the 348, second coiling electric motor, 350, shedding mechanism, the 351, the 4th installing plate, the 352, second electric pushrod.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, it is a kind of to be used for educational robot model, including stirring mechanism 1, discharging mechanism 2, Material transfer device 3, wherein, stirring mechanism 1, discharging mechanism 2, material transfer device 3 are installed in frame, stirring mechanism 1 Discharging opening be connected with the charging aperture of discharging mechanism 2, material transfer device 3 is used for the thing of being discharged the discharging opening of discharging mechanism 2 Material is transported in the charging aperture of stirring mechanism 1.
Stirring mechanism 1 is horizontal agitation, wherein, stirring mechanism 1 includes agitation cylinder 110, stirring shaft 120, agitation blades 130th, stirring motor 140.Stirring shaft 120 is arranged in agitation cylinder 110, and a left side for the right-hand member of stirring shaft 120 and agitation cylinder 110 End is rotatablely connected by bearing, and the left end of stirring shaft 120 is reached outside agitation cylinder 110, and the left end of stirring shaft 120 reaches agitation It is connected after cylinder 110 is outer by shaft coupling with the output end of stirring motor 140, stirring motor 140 is fixed on agitation by support The left end of cylinder 110, agitation blades 130 are arranged on stirring shaft 120 and extend on the part in agitation cylinder 110.In order to facilitate student The running situation of whole stirring mechanism 1 is better understood by, agitation cylinder 110 is designed to transparence.The right-hand member of agitation cylinder 110, which is provided with, is in The charging aperture of back taper, the left end of agitation cylinder 110 are provided with discharging opening.
In addition, stirring mechanism 1 also includes scraping materials and parts 150, scraping materials and parts 150 includes material scraping plate 151, connecting rod 152, connecting rod 152 one end is connected with stirring shaft 120, and the other end of connecting rod 152 is connected with material scraping plate 151, and material scraping plate 151 is away from even One end of extension bar 152 is in contact with stirring the inwall of cylinder 110.Material scraping plate 151 includes plate body, bristle, and bristle is arranged on plate body, Plate body is connected with connecting rod 152.For stirring shaft 120 when being operated with material scraping plate 151, bristle can be to the inwall of agitation cylinder 110 Cleaned with water.
Discharging mechanism 2 includes discharge barrel 210, discharging machine 220, feeding spiral rod 230.Discharge barrel 210 is arranged on agitation The lower section of cylinder 110, also, the discharging opening for stirring cylinder 110 is connected with discharge barrel 210, and feeding spiral rod 230 is arranged on discharge barrel In 210, the left end of feeding spiral rod 230 runs through discharge barrel 210, and has part to reach outside discharge barrel 210, feeding spiral rod 230 left end is connected after stretching out discharge barrel 210 by shaft coupling with the output end of discharging machine 220.The discharging of discharge barrel 210 Mouth is arranged on the right-hand member of discharge barrel 210, and discharge barrel 210 is designed to transparence.
Material transfer device 3 include receiving hopper 310, mounting bracket 320, it is horizontal carry out mechanism 330, elevated height mechanism 340, Shedding mechanism 350.
Elevated height mechanism 340 includes the first column 341, the second column 342, the first directive wheel 343, the second directive wheel 344th, the first pull rope 345, the second pull rope 346, the first coiling electric motor 347, the second coiling electric motor 348.A left side for mounting bracket 320 End is slidably connected with the first column 341, and the right-hand member of mounting bracket 320 is slidably connected with the second column 342, wherein, so-called slip The implementation of connection, which can be sliding block, to be coordinated with chute to realize or guide pillar and pilot hole coordinate to realize.At this In embodiment, mounting bracket 320 is preferably of an L-shaped structure.One end of first pull rope 345 is connected with mounting bracket 320, the first traction Rope 345 the other end be connected with the output end of the first coiling electric motor 347, wherein, the first coiling electric motor 347 including motor and around The output end connection of line wheel, reel and motor.First directive wheel 343 is arranged on the first column 341 by rotating shaft, and first leads It is engaged to wheel 343 with the first pull rope 345, wherein, so-called cooperation refers to the first pull rope 345 in the first directive wheel 343 In the presence of realize commutation.One end of second pull rope 346 is connected with mounting bracket 320, the other end of the second pull rope 346 Be connected with the output end of the second coiling electric motor 348, wherein, the second coiling electric motor 348 includes motor and reel, reel with The output end connection of motor.Second directive wheel 344 is arranged on the second column 342 by rotating shaft, the second directive wheel 344 and second Pull rope 346 is engaged, wherein, so-called cooperation refers to that the second pull rope 346 realizes in the presence of the second directive wheel 344 Commutation.
When the first coiling electric motor 347, the second coiling electric motor 348 work simultaneously, mounting bracket 320 can be in the first pull rope 345th, in the presence of the second pull rope 346, moved up and down on the first column 341, the second column 342, that is, complete peace Shelve the lifting of 320 height.
It is electronic including the first installing plate 331, the second installing plate 332, the 3rd installing plate 333, first that level carries out mechanism 330 Push rod 334, the first installing plate 331 are arranged horizontally on mounting bracket 320, and the left end of the first installing plate 331 and the phase of mounting bracket 320 Be hinged, the first installing plate 331 can be rotated around hinged place.The lower end of second installing plate 332 and the right side of the first installing plate 331 End is fixedly connected, and after the second installing plate 332 is connected with the first installing plate 331, forms L font structures.3rd installing plate 333 slides It is arranged on the first installing plate 331, wherein, the so-called implementation being slidably connected can be that sliding block coordinates to come in fact with chute Existing or guide pillar and pilot hole coordinate to realize.Receiving hopper 310 is fixed on the 3rd installing plate 333, the first electric pushrod 334 one end is connected with the second installing plate 332, and the other end of the first electric pushrod 334 is connected with receiving hopper 310.So First electric pushrod 334 can allow receiving hopper 310 to be moved horizontally on the 3rd installing plate 333 when carrying out flexible.
Shedding mechanism 350 includes the 4th installing plate 351, the second electric pushrod 352, and the 4th installing plate 351 is arranged on installation The lower section of frame 320, the second electric pushrod 352 are fixed on mounting bracket 320, the output end of the second electric pushrod 352 and the first peace Loading board 331 is hinged.Such electric pushrod 352 of second electric pushrod 352 second, can enable the first installing plate 331 around hinge The place of connecing is rotated, that is, adjusts the angle of inclination of receiving hopper 310, convenient that material in receiving hopper 310 is poured into agitation cylinder 110 In the charging aperture of right-hand member.
The educational robot model that is used for also includes industrial computer, multiple timers, power supply, and timer is mainly used for setting Determine corresponding motor opening time and working time, industrial computer receive corresponding timer transmit come command information after, Control corresponding motor is started working or is stopped, and power supply is used to power for each electricity consumption device.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (5)

1. one kind is used for educational robot model, it is characterised in that
Include for educational robot model:Execution system, the bearing power of execution system is N0;For driving execution system First power set, the power output of the first power set is N1;Energy storage units, it is connected, is used for the first power set Store the energy from the first power set;For driving the second power set of execution system, the second power set and energy Memory cell connects, and the power output of the second power set is N2;
Also include stirring mechanism (1), discharging mechanism (2), material transfer device (3), the discharging opening of the stirring mechanism (1) and institute The charging aperture for stating discharging mechanism (2) is connected, and the material transfer device (3) is used to be discharged discharging mechanism (2) discharging opening Material transfer is into the charging aperture of stirring mechanism (1);The stirring mechanism (1) includes agitation cylinder (110), stirring shaft (120), stirred Movable vane piece (130), stirring motor (140), one end of the stirring shaft (120) are connected with the output shaft of stirring motor (140), The other end of the stirring shaft (120) is extend into agitation cylinder (110), and the agitation blades (130) are arranged on stirring shaft (120) It extend on the part in agitation cylinder (110), the agitation cylinder (110) is made of transparent material;Discharging mechanism (2) bag Barrel (210), discharging machine (220), feeding spiral rod (230) are included, the discharge barrel (210) is arranged on agitation cylinder (110) Lower section, it is described agitation cylinder (110) discharging opening be connected with discharge barrel (210);One end of the feeding spiral rod (230) with The output end of discharging machine (220) is connected, and the other end of the feeding spiral rod (230) is extend into discharge barrel (210), institute Discharge barrel (210) is stated to be made of transparent material;The material transfer device (3) include receiving hopper (310), mounting bracket (320), Level carries out mechanism (330), elevated height mechanism (340), shedding mechanism (350), and the mounting bracket (320) sets elevated height In mechanism (340), and the mounting bracket (320) can move up and down in the presence of elevated height mechanism (340);The water Horizontal sliding row mechanism (330) is arranged on mounting bracket (320), and the receiving hopper (310) is arranged on horizontal implementation mechanism (330), The receiving hopper (310) carries out to be moved horizontally in the presence of mechanism (330) in level;The shedding mechanism (350) one End is connected with mounting bracket (320), and the other end and the level of the shedding mechanism (350) are carried out mechanism (330) and be connected.
2. one kind according to claim 1 is used for educational robot model, it is characterised in that the horizontal implementation mechanism (330) the first installing plate (331), the second installing plate (332), the 3rd installing plate (333), the first electric pushrod (334), institute are included The first installing plate (331) is stated to be arranged horizontally on mounting bracket (320), and the left end and mounting bracket of first installing plate (331) (320) it is hinged;The lower end of second installing plate (332) is fixedly connected with the right-hand member of the first installing plate (331);Described 3rd Installing plate (333) is slidably arranged on the first installing plate (331), and the receiving hopper (310) is fixed on the 3rd installing plate (333) on, one end of first electric pushrod (334) is connected with the second installing plate (332), first electric pushrod (334) the other end is connected with receiving hopper (310).
3. one kind according to claim 2 is used for educational robot model, it is characterised in that the shedding mechanism (350) Including the 4th installing plate (351), the second electric pushrod (352), the 4th installing plate (351) is arranged on mounting bracket (320) Lower section, second electric pushrod (352) are fixed on mounting bracket (320), the output end of second electric pushrod (352) with First installing plate (331) is hinged.
4. one kind according to claim 3 is used for educational robot model, it is characterised in that the elevated height mechanism (340) the first column (341), the second column (342), the first directive wheel (343), the second directive wheel (344), the first traction are included Restrict (345), the second pull rope (346), the first coiling electric motor (347), the second coiling electric motor (348), the mounting bracket (320) Left end is slidably connected with the first column (341), and right-hand member and the second column (342) of the mounting bracket (320) are slidably connected;It is described One end of first pull rope (345) is connected with mounting bracket (320), the other end of first pull rope (345) and first around The output end of line motor (347) is connected, and first directive wheel (343) is arranged on the first column (341), and described first leads It is engaged to wheel (343) with the first pull rope (345);One end of second pull rope (346) is connected with mounting bracket (320) Connect, the other end of second pull rope (346) is connected with the output end of the second coiling electric motor (348), and described second is oriented to Wheel (344) is arranged on the second column (342), and second directive wheel (344) is engaged with the second pull rope (346).
5. one kind according to any one of Claims 1-4 is used for educational robot model, it is characterised in that the agitation Mechanism (1) also includes scraping materials and parts (150), and the materials and parts (150) of scraping include material scraping plate (151), connecting rod (152), the connection One end of bar (152) is connected with stirring shaft (120), and the other end of the connecting rod (152) is connected with material scraping plate (151), The one end of the material scraping plate (151) away from connecting rod (152) is in contact with the inwall of agitation cylinder (110).
CN201710851204.XA 2017-09-20 2017-09-20 One kind is used for educational robot model Pending CN107507506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710851204.XA CN107507506A (en) 2017-09-20 2017-09-20 One kind is used for educational robot model

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710851204.XA CN107507506A (en) 2017-09-20 2017-09-20 One kind is used for educational robot model

Publications (1)

Publication Number Publication Date
CN107507506A true CN107507506A (en) 2017-12-22

Family

ID=60696850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710851204.XA Pending CN107507506A (en) 2017-09-20 2017-09-20 One kind is used for educational robot model

Country Status (1)

Country Link
CN (1) CN107507506A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671538A1 (en) * 2004-12-20 2006-06-21 Trioliet Mullos B.V. Device for mixing and distributing
CN101369385A (en) * 2008-08-26 2009-02-18 东北大学 Modularized reconfigurable multifunctional education robot
CN202456354U (en) * 2012-01-13 2012-10-03 创科食品科技(肇庆)有限公司 New screw grinder for food
CN102839822A (en) * 2012-09-19 2012-12-26 中联重科股份有限公司 Construction equipment and power control method for construction equipment
CN205346387U (en) * 2016-01-19 2016-06-29 深圳市润农科技有限公司 Feeding mechanism
CN106867780A (en) * 2017-03-21 2017-06-20 成都世唯科技有限公司 A kind of vinasse rotate spreading for cooling device
CN107131733A (en) * 2017-06-23 2017-09-05 芜湖荣基实业有限公司 A kind of air-conditioning moulding factory supplies transporter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671538A1 (en) * 2004-12-20 2006-06-21 Trioliet Mullos B.V. Device for mixing and distributing
CN101369385A (en) * 2008-08-26 2009-02-18 东北大学 Modularized reconfigurable multifunctional education robot
CN202456354U (en) * 2012-01-13 2012-10-03 创科食品科技(肇庆)有限公司 New screw grinder for food
CN102839822A (en) * 2012-09-19 2012-12-26 中联重科股份有限公司 Construction equipment and power control method for construction equipment
CN205346387U (en) * 2016-01-19 2016-06-29 深圳市润农科技有限公司 Feeding mechanism
CN106867780A (en) * 2017-03-21 2017-06-20 成都世唯科技有限公司 A kind of vinasse rotate spreading for cooling device
CN107131733A (en) * 2017-06-23 2017-09-05 芜湖荣基实业有限公司 A kind of air-conditioning moulding factory supplies transporter

Similar Documents

Publication Publication Date Title
CN207038023U (en) A kind of engineering equipment model
CN203709559U (en) Teaching aid displaying type multi-functional platform
CN207324579U (en) A kind of vertical mixer with elevating function
CN205659601U (en) Can make high -efficient food mixer of food stirring
CN107507506A (en) One kind is used for educational robot model
CN106925172A (en) A kind of brake block production burden agitator
CN207120610U (en) One kind toning robot
CN209427688U (en) Stop gauge
CN107731013A (en) A kind of portable board for teaching mathematics
CN204398131U (en) The dismountable agitating device of a kind of mixer
CN202265520U (en) Drawer type fermentation tower supporting plate and fermentation tower
CN209746879U (en) Probability statistics presentation device
CN212440935U (en) Full-automatic building putty agitating unit
CN204338089U (en) A kind of novel high speed batch mixer
CN208580511U (en) A kind of multi-functional economic management teaching panel
CN208803353U (en) A kind of feeding equipment of pavement marker
CN206711499U (en) A kind of education and instruction panel
CN203678294U (en) Pigment stirring device
CN207071402U (en) A kind of chemical industry equipment insulation still
CN206082610U (en) High school is laboratory bench for natural sciences
CN103828731A (en) Automatic feed throwing device
CN110009968A (en) A kind of aided education displaying device
CN205360573U (en) Swirl analogue means is under water used in amusement
CN218939093U (en) Teaching device
CN207264619U (en) A kind of Multi-function demonstration board for teaching

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171222

WD01 Invention patent application deemed withdrawn after publication