CN208819581U - A kind of three-dimensional animation show stand - Google Patents

A kind of three-dimensional animation show stand Download PDF

Info

Publication number
CN208819581U
CN208819581U CN201820808273.2U CN201820808273U CN208819581U CN 208819581 U CN208819581 U CN 208819581U CN 201820808273 U CN201820808273 U CN 201820808273U CN 208819581 U CN208819581 U CN 208819581U
Authority
CN
China
Prior art keywords
support plate
vertical
dimensional animation
show stand
holographic
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.)
Active
Application number
CN201820808273.2U
Other languages
Chinese (zh)
Inventor
郑则坚
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.)
Guangzhou New Digital Technology Co Ltd
Original Assignee
Guangzhou New Digital Technology Co Ltd
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 Guangzhou New Digital Technology Co Ltd filed Critical Guangzhou New Digital Technology Co Ltd
Priority to CN201820808273.2U priority Critical patent/CN208819581U/en
Application granted granted Critical
Publication of CN208819581U publication Critical patent/CN208819581U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Toys (AREA)

Abstract

The utility model discloses a kind of three-dimensional animation show stands, include: moveable support pedestal comprising rectangular base seat board, four lower surfaces that the rectangular base seat board is set four corners damping movable pulley and be arranged in the rectangular base seat board upper surface vertical electric lifting rod;Top base comprising the driving mechanism that the vertical electric lifting rod upper end is set, the rotational support plate that the horizontal support plate of the driving mechanism upper end is set and the upper surface of the horizontal support plate is set;Projection Display component comprising four vertical support rods, holographic indication mechanism and the transparent shield that the holographic projection mechanism of rotational support plate upper surface is set, rotational support plate upper surface is set and is located at around the holographic projection mechanism;Three telescopic rods are each provided at the upper surface of the rectangular base seat board.Three-dimensional animation show stand provided by the utility model not only design rationally, structure it is simple, have high promotional value.

Description

A kind of three-dimensional animation show stand
Technical field
The utility model relates to animated show technical fields, and more specifically, the utility model relates to a kind of three-dimensional animations Show stand.
Background technique
With the fast development of information technology worldwide, the especially popularization and application of digitizing technique.Utilize letter The interactive mode that is intuitive, concentrating of the centralized management means cooperation information of breathization is expressed, so that need of the people to stereoscopic imaging technology It asks and is more and more obvious.As existing science and technology steps into three-dimensional new world, holographic three-dimensional imaging technology is as current most modern Imaging technique, be widely used in Chinese national economy production every field.But existing animated show is set Single and old-fashioned and inflexible for all comparing, the characteristic of presentation animation that cannot be vivid cannot leave deep impression to visitor, Corresponding glasses, which need to be worn, could embody three-dimensional effect, cumbersome, and state-of-the-art virtual imaging apparatus can only also mention For basic displaying function, the chance of interaction cannot be provided to visitor, therefore eager need to change existing situation.
Chinese patent " 207037335 U of CN " discloses a kind of three-dimensional animation show stand, including show stand main body and is located at Holographic imaging apparatus above show stand main body is fixedly installed supporting bable tops in show stand main body, and passes through supporting bable tops and connect Holographic imaging apparatus is connect, holographic imaging apparatus is made of several piece acrylic board, and every piece of acrylic board uniformly covers one layer Line holographic projections film, and entire imaging device is in the Pyramid to stand upside down, the side of show stand main body, which is provided with LED and shows, to be set Standby, LED display device side setting USB slot show stand body interior is provided with holographic projector, electricity below holographic projector Central processing unit being connected, and central processing unit is electrically connected LED display device, holographic imaging apparatus periphery is provided with protective glass, And supporting bable tops upper surface is fixed below protective glass;The utility model can by image that holographic projector is cast out into The three-dimensional displaying of row, it is very convenient, while can be realized three-dimensional animation and showing and interacting between visitor.
A kind of above-mentioned three-dimensional animation show stand, structure is complicated, and when use is occupied unprecedented larger, there is inconvenience more.Cause This, those skilled in the art provide a kind of three-dimensional animation show stand, to solve the problems mentioned in the above background technology.
Utility model content
One purpose of the utility model is to solve at least the above problems, and provide the advantages of at least will be described later.
There are one purposes for the utility model there is provided a kind of three-dimensional animation show stand, this three-dimensional animation show stand can be with The whole height for adjusting this three-dimensional animation show stand by vertical lifting bar according to service condition, meets requirement.
To achieve the goals above, the utility model provides a kind of three-dimensional animation show stand, comprising:
Moveable support pedestal comprising rectangular base seat board, four lower surfaces that the rectangular base seat board is set quadrangle The damping movable pulley at place and be arranged in the rectangular base seat board upper surface vertical electric lifting rod, the rectangular base seat board One side wall be provided with power slot, the power slot content is equipped with accumulation power supply, and the notch of the power slot is provided with slot Cover board;
Top base comprising the driving mechanism of the vertical electric lifting rod upper end is set, is arranged in the driving The horizontal support plate of mechanism upper end and be arranged in the horizontal support plate upper surface rotational support plate, the driving mechanism Including the motor housing that the vertical electric lifting rod upper end is arranged in, the driving motor being installed in the motor housing and vertical Rotation axis, the upper end of the vertical rotation axis sequentially pass through upper end and the horizontal support plate and the rotation of the motor housing The lower surface of support plate connects, and the driving motor is sequentially connected with the vertical rotation axis and is electrically connected with the accumulation power supply It connects, the inner bottom surface and the horizontal support plate of the vertical rotation axis and the motor housing are rotatablely connected;
Projection Display component comprising the holographic projection mechanism of rotational support plate upper surface is set, is arranged in institute State rotational support plate upper surface and be located at the holographic projection mechanism around four vertical support rods, setting in the vertical branch Strut upper end and the holographic indication mechanism being located above the holographic projection mechanism and setting table in the horizontal support plate Face and the transparent shield for being used to be provide with the holographic indication mechanism, the holography indication mechanism is in inverted pyramid, and And four vertical support rods are arranged in the four corners of the lower surface of the holographic indication mechanism, the holographic projection mechanism with The accumulation power supply electrical connection, and the holographic projection mechanism is connect with external amusement equipment signal;
Three telescopic rods, are each provided at the upper surface of the rectangular base seat board, and the telescopic rod includes being arranged in rectangular base The vertical outer cylinder bar of seat board upper surface and upper end are connect with the lower surface of the horizontal support plate and lower end is installed with described vertical Sliding interior bar in outer cylinder bar, the height that the telescopic rod is in extended state are greater than the vertical electric lifting rod and are in stretching, extension The height of state;
Wherein, the upper surface of the rotational support plate is provided with placing groove corresponding with the holographic projection mechanism, institute The inner sidewall for stating placing groove is provided with multiple security bars to protect the holographic projection mechanism.
Preferably, in the three-dimensional animation show stand, the outer bar wall of one of them vertical outer cylinder bar is close to it The position of upper end is provided with the driving switch for controlling the driving motor and controls the lifter switch of the vertical electric lifting rod.
Preferably, in the three-dimensional animation show stand, setting is described vertical turn with permission in the horizontal support plate The through hole that moving axis passes through, and first bearing is provided in the through hole, the first bearing is set in described vertical turn On moving axis.
Preferably, in the three-dimensional animation show stand, it is described perpendicular that carrying is provided on the inner bottom surface of the motor housing The support base of straight rotation axis, is provided with second bearing on the support base, and the lower end of the vertical rotation axis is set in described the In two bearings.
Preferably, in the three-dimensional animation show stand, the side wall of the horizontal support plate is equipped with multiple loudspeakers; The accumulation power supply is set as battery.
Preferably, in the three-dimensional animation show stand, the security bar is set as flame retardant silica gel security bar.
Preferably, in the three-dimensional animation show stand, the damping movable pulley includes being arranged in the rectangular base The lower surface of plate and the damper cylinder body of lower ending opening are installed in the intracorporal damping spring of the damper cylinder, are arranged in the damping The damping baffle that connect at the lower ending opening of cylinder and with the damping spring and damping baffle lower surface is set Movable pulley ontology.
Preferably, in the three-dimensional animation show stand, the movable pulley ontology is set as strap brake function and mute The TPR flexible glue bound edge universal wheel of function.
The utility model is include at least the following beneficial effects:
1, three-dimensional animation show stand described in the utility model not only design rationally, structure it is simple and low in cost, and have There is high promotional value;The show stand small volume and less weight of this three-dimensional animation, it is easy to remove, it is low to the use condition requirement of operating condition, it fits Ying Xingqiang.
2, three-dimensional animation show stand described in the utility model can drive rotation by setting driving mechanism, driving mechanism Support plate rotation, the displaying of progress three-dimensional animation that can be comprehensive, the explanation of voice can be carried out by the loudspeaker of setting, By the combination of eyes and ear, viewer can be allowed to leave more deep impression to the three-dimensional animation content being shown, Achieve the purpose that publicity explanation.
3, three-dimensional animation show stand described in the utility model passes through the vertical electric lifting rod and three telescopic rods of setting, User can this three-dimensional animation of flexibly adjustment show stand according to requirements height, facilitate viewer to watch.
Three-dimensional animation show stand described in the utility model, the further advantage, target and feature of the utility model are by part It is reflected by the following instructions, part will also be those skilled in the art institute by the research and practice to the utility model Understand.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model three-dimensional animation show stand in one embodiment.
Fig. 2 is that the utility model in one embodiment show in the three-dimensional animation show stand by the structure of driving mechanism It is intended to.
Fig. 3 be the utility model in one embodiment in the three-dimensional animation show stand damping movable pulley structure Schematic diagram.
Marked in the figure:
1- rectangular base seat board;2- damping movable pulley;The vertical electric lifting rod of 3-;4- power slot;5- accumulation power supply;6- slot cover Plate;7- horizontal support plate;8- rotational support plate;9- motor housing;10- driving motor;11- driving motor;12- line holographic projections machine Structure;The vertical support rod of 13-;14- holography indication mechanism;15- transparent shield;16- telescopic rod;17- driving switch;18- passes through Hole;19- first bearing;20- support base;21- support base;22- loudspeaker;23- placing groove;24- security bar;25- lifting is opened It closes;161- outer cylinder bar vertically;162- slides interior bar;201- damper cylinder body;202- damping spring;203- damping baffle;204- is moved Driving wheel ontology.
Specific embodiment
With reference to the accompanying drawing and embodiment is described in further detail the utility model, to enable those skilled in the art Member's refer to the instruction text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more The presence or addition of a other elements or combinations thereof.
As shown in FIG. 1 to 3, the utility model provides a kind of three-dimensional animation show stand in one embodiment, packet It includes:
Moveable support pedestal comprising the four of rectangular base seat board 1, four lower surface that the rectangular base seat board 1 is set Damping movable pulley 2 at angle and be arranged in the rectangular base seat board 1 upper surface vertical electric lifting rod 3, the rectangle The one side wall of base plate 1 is provided with power slot 4, and 4 content of power slot is equipped with accumulation power supply 5, and the power slot 4 Notch is provided with tank cover plate 6;
Top base comprising the driving mechanism of 3 upper end of vertical electric lifting rod is set, is arranged in the driving The horizontal support plate 7 of mechanism upper end and be arranged in the horizontal support plate 7 upper surface rotational support plate 8, the driving Mechanism includes the motor housing 9 that 3 upper end of vertical electric lifting rod is arranged in, the driving motor being installed in the motor housing 9 10 and vertical rotation axis 11, the upper end of the vertical rotation axis 11 sequentially pass through the motor housing 9 upper end and the horizontal Support plate 7 is connect with the lower surface of the rotational support plate 8, and the driving motor 10 connects with the vertical transmission of rotation axis 11 It connects and is electrically connected with the accumulation power supply 5, inner bottom surface and the horizontal of the vertical rotation axis 11 with the motor housing 9 Support plate 7 is rotatablely connected;
Projection Display component comprising the holographic projection mechanism 12 of 8 upper surface of rotational support plate is set, setting exists 8 upper surface of rotational support plate and be located at the holographic projection mechanism 12 around four vertical support rods 13, setting in institute It states vertical 13 upper end of support rod and is located at the holographic indication mechanism 14 of 12 top of holographic projection mechanism and is arranged described 7 upper surface of horizontal support plate and the transparent shield 15 for being used to be provide with the holographic indication mechanism 14, the holography indication mechanism 14 be in inverted pyramid, and the lower surface of the holographic indication mechanism 14 is arranged in four vertical support rods 13 Four corners, the holographic projection mechanism 12 are electrically connected with the accumulation power supply 5, and the holographic projection mechanism 12 and external joy Happy device signal connection;
Three telescopic rods 16, are each provided at the upper surface of the rectangular base seat board 1, and the telescopic rod 16 includes being arranged in square The vertical outer cylinder bar 161 of 1 upper surface of shape base plate and upper end is connect with the lower surface of the horizontal support plate 7 and lower end is installed with Sliding interior bar 162 in the vertical outer cylinder bar 161, the height that the telescopic rod 16 is in extended state are greater than the vertical electricity Dynamic elevating lever 3 is in the height of extended state;
Wherein, the upper surface of the rotational support plate 8 is provided with placing groove corresponding with 12 structure of line holographic projections machine 23, the inner sidewall of the placing groove 23 is provided with multiple security bars 24 to protect the holographic projection mechanism 12.
Further, the outer bar wall of one of them vertical outer cylinder bar 162 is provided with control close to the position of the upper end The driving switch 17 of the driving motor 10 and the lifter switch 25 for controlling the vertical electric lifting rod 3.
Further, the through hole 18 for being arranged in the horizontal support plate 7 and the vertical rotation axis 11 being allowed to pass through, and And first bearing 19 is provided in the through hole 18, the first bearing 19 is set in the vertical rotation axis 11.
Further, the support base 20 for carrying the vertical rotation axis 11, institute are provided on the inner bottom surface of the motor housing 9 It states and is provided with second bearing 21 on support base 20, the lower end of the vertical rotation axis 11 is set in the second bearing 21.
Further, the side wall of the horizontal support plate 7 is equipped with multiple loudspeakers 22;The accumulation power supply 5 is set as storing Battery.
Further, the security bar 24 is set as flame retardant silica gel security bar.
Further, the damping movable pulley 2 includes lower surface and the lower ending opening that the rectangular base seat board 1 is arranged in Damper cylinder body 201, the damping spring 202 being installed in the damper cylinder body 201, the lower end that the damper cylinder body 201 is set Opening and the damping baffle 203 being connect with the damping spring 202 and the shifting that 203 lower surface of damping baffle is set Driving wheel ontology 204.
Further, the movable pulley ontology 204 is set as strap brake function and the TPR flexible glue bound edge of mute function is universal Wheel.
The working principle of three-dimensional animation show stand provided by the utility model is as follows:
Holographic projection mechanism 12 and external amusement equipment in three-dimensional animation show stand provided by the utility model carry out letter Number connection, according to the actual situation, holographic projection mechanism 12 can carry out wired signal by cable and connect with outside amusement equipment, Or wireless signal is carried out by WIFI module and is connected, or wireless signal is carried out by bluetooth module and is connected;It is above-mentioned to mention And amusement equipment be not limited only to the amusement equipment such as cinema equipment, the competing game station of electricity, personal audiovisual device;
When in use, holographic projection mechanism 12 can give pleasure to three-dimensional animation show stand provided by the utility model outside real-time reception The signal that happy equipment is sent, holographic projection mechanism 12 receive the virtual reality scenario phase of generation and external amusement equipment after signal Matched three-dimensional animation, and project on holographic indication mechanism 14 and show;
In addition, user can be conveniently mobile by this three-dimensional animation show stand by the damping movable pulley 2 of setting To suitable position, also facilitates and change display location at any time;User can star driving motor 10 by driving switch 17, drive Dynamic motor 10 drives vertical rotation axis 11 that rotational support plate 8 is driven to be rotated, and allows the viewing three that viewer is comprehensive Tie up the displaying of animation;By the height of the adjustable vertical electric lifting rod 3 of lifter switch 25, and then change the exhibition of this three-dimensional animation Show the height of platform;The displaying information of three-dimensional animation is publicized by voice by loudspeaker 24.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality It is not limited to specific details and legend shown and described herein with novel.

Claims (8)

1. a kind of three-dimensional animation show stand characterized by comprising
Moveable support pedestal comprising rectangular base seat board (1), four settings are the four of the lower surface of the rectangular base seat board (1) The vertical electric lifting rod (3) of damping movable pulley (2) and setting in the upper surface of the rectangular base seat board (1) at angle, institute The one side wall for stating rectangular base seat board (1) is provided with power slot (4), and power slot (4) content is equipped with accumulation power supply (5), and The notch of the power slot (4) is provided with tank cover plate (6);
Top base comprising be arranged vertical electric lifting rod (3) upper end driving mechanism, be arranged in the driving machine The horizontal support plate (7) of structure upper end and setting the upper surface of the horizontal support plate (7) rotational support plate (8), it is described Driving mechanism include setting vertical electric lifting rod (3) upper end motor housing (9), be installed in the motor housing (9) Driving motor (10) and vertical rotation axis (11), the upper end of the vertical rotation axis (11) sequentially passes through the motor housing (9) upper end and the horizontal support plate (7) is connect with the lower surface of the rotational support plate (8), the driving motor (10) Be sequentially connected with the vertical rotation axis (11) and be electrically connected with the accumulation power supply (5), the vertical rotation axis (11) and The inner bottom surface and the horizontal support plate (7) of the motor housing (9) are rotatablely connected;
Projection Display component comprising be arranged and exist in the holographic projection mechanism (12) of rotational support plate (8) upper surface, setting Rotational support plate (8) upper surface and be located at the holographic projection mechanism (12) around four vertical support rods (13), set Set vertical support rod (13) upper end and be located at the holographic projection mechanism (12) above holographic indication mechanism (14) with And setting is in horizontal support plate (7) upper surface and transparent shield for being provide with the holographic indication mechanism (14) (15), the holographic indication mechanism (14) is in inverted pyramid, and four vertical support rods (13) are arranged in institute The four corners of the lower surface of holographic indication mechanism (14) are stated, the holographic projection mechanism (12) is electrically connected with the accumulation power supply (5) It connects, and the holographic projection mechanism (12) is connect with external amusement equipment signal;
Three telescopic rods (16), are each provided at the upper surface of the rectangular base seat board (1), and the telescopic rod (16) includes that setting exists The vertical outer cylinder bar (161) of rectangular base seat board (1) upper surface and upper end connect with the lower surface of the horizontal support plate (7) and under End is installed with the sliding interior bar (162) in the vertical outer cylinder bar (161), and the telescopic rod (16) is in the height of extended state Greater than the height that the vertical electric lifting rod (3) is in extended state;
Wherein, the upper surface of the rotational support plate (8) is provided with placing groove corresponding with the holographic projection mechanism (12) (23), the inner sidewall of the placing groove (23) is provided with multiple security bars to protect the holographic projection mechanism (12) (24)。
2. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that one of them described vertical outer cylinder bar (161) outer bar wall is provided with the driving switch (17) for controlling the driving motor (10) and control close to the position of the upper end The lifter switch (25) of the vertical electric lifting rod (3).
3. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that set on the horizontal support plate (7) The through hole (18) set and the vertical rotation axis (11) is allowed to pass through, and first bearing is provided in the through hole (18) (19), the first bearing (19) is set on the vertical rotation axis (11).
4. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that the inner bottom surface of the motor housing (9) On be provided with the support base (20) for carrying the vertical rotation axis (11), be provided with second bearing on the support base (20) (21), the lower end of the vertical rotation axis (11) is set in the second bearing (21).
5. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that the side of the horizontal support plate (7) Wall is equipped with multiple loudspeakers (22);The accumulation power supply (5) is set as battery.
6. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that the security bar (24) is set as fire-retardant Silica gel security bar.
7. a kind of three-dimensional animation show stand according to claim 1, which is characterized in that the damping movable pulley (2) includes Be arranged the rectangular base seat board (1) lower surface and lower ending opening damper cylinder body (201), be installed in the damper cylinder body (201) damping spring (202) in, be arranged at the lower ending opening of the damper cylinder body (201) and with the damping spring (202) connect damping baffle (203) and setting damping baffle (203) lower surface movable pulley ontology (204).
8. a kind of three-dimensional animation show stand according to claim 7, which is characterized in that the movable pulley ontology (204) sets For strap brake function and the TPR flexible glue bound edge universal wheel of mute function.
CN201820808273.2U 2018-05-28 2018-05-28 A kind of three-dimensional animation show stand Active CN208819581U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820808273.2U CN208819581U (en) 2018-05-28 2018-05-28 A kind of three-dimensional animation show stand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820808273.2U CN208819581U (en) 2018-05-28 2018-05-28 A kind of three-dimensional animation show stand

Publications (1)

Publication Number Publication Date
CN208819581U true CN208819581U (en) 2019-05-03

Family

ID=66269260

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820808273.2U Active CN208819581U (en) 2018-05-28 2018-05-28 A kind of three-dimensional animation show stand

Country Status (1)

Country Link
CN (1) CN208819581U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340907A (en) * 2019-08-12 2019-10-18 乌鲁木齐明华智能电子科技有限公司 A kind of hologram display service robot
CN111457216A (en) * 2020-05-13 2020-07-28 浙江宝妈创客品牌管理有限公司 Multimedia video display platform based on mechanical transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340907A (en) * 2019-08-12 2019-10-18 乌鲁木齐明华智能电子科技有限公司 A kind of hologram display service robot
CN111457216A (en) * 2020-05-13 2020-07-28 浙江宝妈创客品牌管理有限公司 Multimedia video display platform based on mechanical transmission

Similar Documents

Publication Publication Date Title
CN204964982U (en) Phantom imaging system
CN208819581U (en) A kind of three-dimensional animation show stand
CN209750561U (en) Display device for packaging design with good protection performance
CN109303420A (en) A kind of music teaching Multi-functional music stand
CN210018715U (en) 3D display cabinet
CN210349246U (en) Indoor holographic show stand of exhibition room
CN210142476U (en) Electronic sand table
CN106724161A (en) A kind of domestic intelligent cabinet for TV
CN213488083U (en) Handicraft display device with accomodate structure
CN207397519U (en) Display rack for network holographic projection teaching
CN215416447U (en) Flexible screen touch interaction all-in-one machine
CN213815049U (en) Intelligent classroom experiment demonstration system
CN206301138U (en) A kind of Portable miniature projector
CN209486551U (en) A kind of CAD 3D model display show stand
CN209629233U (en) A kind of polarisation showcase
CN204191932U (en) With the table for game of camera head
CN111768728A (en) Interactive display device for multimedia advertisement
CN104460198A (en) Device for automatically and integrally adjusting projector and projector screen
CN215494770U (en) Intelligent center control structure applied to exhibition hall and exhibition hall
WO2021204305A2 (en) Ar interaction apparatus based on digital twins
CN221860921U (en) Household intelligent interaction terminal
CN221750076U (en) Work placement frame for art design
CN108741933A (en) A kind of unrestrained exhibition unrestrained exhibition Demonstration table for facilitating adjusting
CN208673187U (en) A kind of touch information displaying all-in-one machine
CN108013597A (en) A kind of finance teaching aid equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant