阅读说明：本技术 一种基于vr的学前儿童科学教育展示装置 (VR-based scientific education display device for preschool children ) 是由 李小志 于 2021-09-10 设计创作，主要内容包括：本发明公开了一种基于VR的学前儿童科学教育展示装置,包括放置在讲台上的工作箱和设置在工作箱两侧的提手,所述工作箱内部滑动设置有用于存放VR眼镜的储存盒,所述工作箱内部两侧还设置有定位件,两个所述定位件均与储存盒相接触,以对储存盒进行定位,所述工作箱远离储存盒一侧内部设置有用于连接VR眼镜的显示器,以区别于现有技术,使得通过所述智能切换机构能够实现多个调味罐之间的切换,且所述调味罐内的液体通过连接管流出,以让学期儿童能够品尝到VR眼镜中展示的味道,进而使得学前儿童能够区分调料,在VR技术与智能制造相配合的情况下,通过科学教育的方式帮助学前儿童准确了解酸甜苦辣这几种味道,提高学习知识过程中的趣味性。(The invention discloses a VR-based scientific education display device for preschool children, which comprises a work box and handles, wherein the work box is placed on a platform, the handles are arranged on two sides of the work box, a storage box for storing VR glasses is arranged in the work box in a sliding mode, positioning parts are further arranged on two sides of the work box, the two positioning parts are both in contact with the storage box to position the storage box, a display for connecting the VR glasses is arranged in one side, away from the storage box, of the work box, the work box is different from the prior art, so that switching among a plurality of seasoning cans can be realized through an intelligent switching mechanism, liquid in the seasoning cans flows out through a connecting pipe, the preschool children can taste the tastes displayed in the VR glasses, the preschool children can distinguish the seasonings, and under the condition that VR technology is matched with intelligent manufacturing, the preschool children can be helped to accurately know the tastes of sour, sweet, bitter and spicy tastes through a scientific education mode, the interest in the knowledge learning process is improved.)

1. A scientific education display device for preschool children based on VR comprises a work box (1) placed on a platform and handles (2) arranged on two sides of the work box (1),

the method is characterized in that: a storage box (31) for storing VR glasses is arranged in the work box (1) in a sliding mode, positioning pieces (3) are further arranged on two sides in the work box (1), and the two positioning pieces (3) are in contact with the storage box (31) so that the storage box (31) can be positioned when the storage box (31) is pushed into the work box (1);

a display (41) used for being connected with VR glasses is arranged inside one side, away from the storage box (31), of the working box (1), a guide lifting mechanism (4) is further arranged on one side, away from the storage box (31), of the working box (1), the display (41) is connected with the guide lifting mechanism (4), and the display (41) can be driven to move up and down through the guide lifting mechanism (4);

still including setting up at inside intelligent switching mechanism (6) of work box (1), intelligent switching mechanism (6) and the VR glasses of placing in storage box (31) pass through signal connection, the jar of flavouring (61) have been placed to work box (1) inside, work box (1) are close to storage box (31) one side and are provided with connecting pipe (62), through switching between a plurality of jars of flavouring (61) can be realized in intelligent switching mechanism (6), just liquid in the jar of flavouring (61) flows through connecting pipe (62) to let school period children can taste the taste of demonstrateing in the VR glasses, and then make school period children can distinguish condiment.

2. The VR-based scientific educational display for preschool children of claim 1, wherein: it is the reducing structure to store box (31) and be close to seasoning jar (61) one side, setting element (3) are including setting up fixed pipe (32) on work box (1) lateral wall, fixed pipe (32) internalization is provided with location ball (33), be provided with spring (34) between location ball (33) and fixed pipe (32), constant head tank (35) with location ball (33) looks block are seted up to store box (31) side.

3. The VR-based scientific educational display for preschool children of claim 2, wherein: the guide lifting mechanism (4) comprises a supporting plate (42) arranged at the bottom of one side of the working box (1), an installation frame (43) is arranged on the supporting plate (42) in a rotating mode, a screw rod (44) is arranged on the installation frame (43) in a rotating mode, a driving motor (45) is arranged at the top of the installation frame (43), the output end of the driving motor (45) is connected with the screw rod (44), a movable block (46) is arranged on one side of the display (41), the movable block (46) is connected to the screw rod (44) in a threaded mode,

the display device is characterized by further comprising a guide piece (5), wherein the guide piece (5) is arranged in the working box (1) so that the display (41) can be lifted normally in the working box (1).

4. The VR-based scientific educational display of preschool children of claim 3, wherein: the guide piece (5) comprises two guide seats (51) arranged on the side edge of the display (41), guide columns (52) are arranged in the work box (1), the two guide columns (52) are arranged, the tops of the two guide columns are of variable diameter structures, and the guide seats (51) are movably sleeved on the outer sides of the guide columns (52).

5. The VR-based scientific educational display of preschool children of claim 4, wherein: the work box (1) is internally provided with a fixing frame (11), a lower jaw supporting plate (12) penetrating through the side wall of the work box (1) is arranged in the fixing frame (11) in a sliding mode, and limiting plates (13) are arranged on two sides of the lower jaw supporting plate (12).

6. The VR-based scientific educational display of preschool children of claim 5, wherein: the intelligent switching mechanism (6) comprises a plurality of can placing seats (63) arranged inside the working box (1), the seasoning cans (61) are respectively arranged in the can placing seats (63), a mounting groove (64) is formed in each can placing seat (63), a liquid outlet pipe (65) is arranged at the bottom of each seasoning can (61), a regulating valve (66) is arranged on each liquid outlet pipe (65), and each liquid outlet pipe (65) is arranged in each mounting groove (64) to position each seasoning can (61);

be provided with fixed plate (67) on mount (11), connecting pipe (62) set up on fixed plate (67), work box (1) inside still is provided with registration arm (68) to make drain pipe (65) of placing in mounting groove (64) be linked together with registration arm (68), registration arm (68) bottom all is connected with hose (69), just hose (69) tip is connected respectively on the different interfaces of connecting pipe (62).

7. The VR-based scientific educational display of preschool children of claim 6, wherein: the mouth rinsing device is characterized in that a mouth rinsing piece (7) is further arranged inside the working box (1), the mouth rinsing piece (7) comprises a clean water tank (71) arranged inside the working box (1), the clean water tank (71) is provided with a structure identical to that of the liquid outlet pipe (65) and the regulating valve (66), the working box (1) is internally provided with a structure identical to that of the positioning pipe (68) and the hose (69), the liquid outlet pipe (65) is communicated with the positioning pipe (68), and two ends of the hose (69) are respectively communicated with the positioning pipe (68) and the connecting pipe (62);

a box placing seat (72) is further arranged inside the working box (1) to ensure that the clean water box (71) can be stably placed.

8. The VR-based scientific educational display for preschool children of claim 7, wherein: work box (1) one side still slides and is provided with waste liquid case (14), waste liquid case (14) are the diameter of top diameter and are greater than the reducing structure of bottom.

9. The VR-based scientific educational display for preschool children of claim 8, wherein: logical groove (15) have been seted up at work box (1) top, and upper cover plate (16) have been placed at the top, season jar (61), clear water tank (71) and upper cover plate (16) are transparent material, season jar (61) top is provided with feed liquor pipe (17) to can observe the interior surplus content of season jar (61), and in time add.

10. The VR-based scientific educational display for preschool children of claim 9, wherein: the connecting pipe (62) is provided with a disposable suction port (8).

Technical Field

The invention relates to the technical field of education display devices, in particular to a VR-based scientific education display device for preschool children.

Background

According to the current medical and psychological classification at home and abroad, the period from birth to infant can be divided into the following stages: birth for-1 month; during infancy: 1 month-1 year old, corresponding to the infancy stage; in the stage of learning to walk: 1-2 years old; early childhood: the age of 2-6 years, which corresponds to the infancy stage, although this classification method is increasingly challenged, and the classification of infants is especially the most important one, these stages are generally referred to as the childhood stage, that is, the children who formally enter the primary school stage and are not studying are referred to as preschool children, and in China, although these children are referred to as preschool children, most parents place the children in education institutions such as nursery houses and kindergartens, so that the children can learn some common scientific knowledge in life, such as distinguishing different tastes such as sour, sweet, bitter and spicy, distinguishing different colors, or recognizing common articles in life.

However, when children are subjected to taste learning, most of institutions with poor teaching conditions are explained by a young teacher standing on a platform and the children: in life, vinegar is sour, sugar is sweet, medicine is bitter, pepper is spicy, then children can recognize corresponding taste by self brain supplement, but in this way, classroom teaching contents become boring, and part of children may not know what vinegar and what pepper at all, so that the effect of listening to lessons is poor, and the distinguishing of tastes of the children such as sour, sweet, bitter and spicy is greatly influenced;

for schools with good teaching conditions, a scientific activity about the tastes of sour, sweet and spicy is mostly carried out, and young teachers prepare foods with related tastes, such as: sugar cube, balsam pear, hawthorn, raisin, lemon and tangerine etc. though can let children fine understanding taste such as sour sweet bitter peppery, the preparation time of activity is longer, needs certain expenditure, has increased the work load on class of teachers, and in addition, some children have the condition of choosing food, consequently are difficult to let every children can both be initiative go to taste all food, for this reason, we propose a preschool children scientific education display device based on VR.

Disclosure of Invention

The invention aims to provide a VR-based scientific education display device for preschool children to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a scientific education display device for preschool children based on VR comprises a work box placed on a platform and handles arranged on two sides of the work box, wherein a storage box used for storing VR glasses is arranged in the work box in a sliding mode, positioning pieces are further arranged on two sides of the work box, the two positioning pieces are in contact with the storage box to position the storage box, a display used for being connected with the VR glasses is arranged inside one side of the work box, which is far away from the storage box, so that switching among a plurality of seasoning cans can be achieved through an intelligent switching mechanism, liquid in the seasoning cans flows out through a connecting pipe, so that preschool children can taste the tastes displayed in the VR glasses, seasoning can be further distinguished by the preschool children, and under the condition that VR technology and intelligent manufacturing are matched, the preschool children can accurately know the tastes of sour, sweet and spicy taste through a scientific education mode, the interest in the knowledge learning process is improved.

Preferably, one side of the storage box, which is close to the seasoning pot, is of a variable diameter structure, the positioning piece comprises a fixed pipe arranged on the side wall of the working box, a positioning ball is movably arranged in the fixed pipe, a spring is arranged between the positioning ball and the fixed pipe, and a positioning groove clamped with the positioning ball is formed in the side edge of the storage box.

Preferably, the guiding lifting mechanism comprises a supporting plate arranged at the bottom of one side of the working box, an installation frame is rotatably arranged on the supporting plate, a screw rod is rotatably arranged on the installation frame, a driving motor is arranged at the top of the installation frame, the output end of the driving motor is connected with the screw rod, a movable block is arranged at one side of the display and is in threaded connection with the screw rod,

the display device further comprises a guide piece, and the guide piece is arranged in the working box, so that the display device can be lifted normally in the working box.

Preferably, the guide part includes two guide holders of setting at the display side, be provided with the guide post in the work box, the guide post is provided with two, and the top is reducing structure, the guide holder movable sleeve is established in the guide post outside.

Preferably, a fixing frame is arranged in the working box, a lower jaw supporting plate penetrating through the side wall of the working box is arranged in the fixing frame in a sliding mode, and limiting plates are arranged on two sides of the lower jaw supporting plate.

Preferably, the intelligent switching mechanism comprises a plurality of can placing seats arranged in the working box, the seasoning cans are respectively arranged in the can placing seats, a mounting groove is formed in each can placing seat, a liquid outlet pipe is arranged at the bottom of each seasoning can, a regulating valve is arranged on each liquid outlet pipe, and each liquid outlet pipe is arranged in the corresponding mounting groove so as to position the seasoning can;

the supporting plate is arranged on the fixing frame, the connecting pipe is arranged on the supporting plate, the positioning pipe is further arranged inside the working box, so that the liquid outlet pipe placed in the mounting groove is communicated with the positioning pipe, the bottom of the positioning pipe is connected with the hose, and the end parts of the hose are respectively connected to different interfaces of the connecting pipe.

Preferably, the work box is internally provided with a mouth rinsing piece, the mouth rinsing piece comprises a clean water tank arranged in the work box, the clean water tank is provided with a structure the same as that of the liquid outlet pipe and the regulating valve, the work box is internally provided with a structure the same as that of the positioning pipe and the hose, the liquid outlet pipe is communicated with the positioning pipe, and two ends of the hose are respectively communicated with the positioning pipe and the connecting pipe;

the inside of the working box is also provided with a box placing seat to ensure that the clean water box can be stably placed.

Preferably, a waste liquid tank is further arranged on one side of the working tank in a sliding mode, and the diameter of the top of the waste liquid tank is larger than that of the bottom of the waste liquid tank in a diameter changing mode.

Preferably, logical groove has been seted up at the work box top, and the upper cover plate has been placed at the top, season jar, clear water tank and upper cover plate are transparent material, the tank top of flavouring is provided with the feed liquor pipe to can observe surplus content in the season jar, and in time add.

Preferably, the connecting pipe is provided with a disposable suction opening.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the intelligent switching mechanism can realize switching among a plurality of seasoning pots, and the liquid in the seasoning pots flows out through the connecting pipe, so that a preschool child can taste the taste displayed in the VR glasses, and further the preschool child can distinguish seasonings.

2. Under the condition that VR technology is matched with intelligent manufacturing, preschool children are helped to accurately know the tastes of sour, sweet, bitter and hot in a scientific education mode, and interestingness in the knowledge learning process is improved.

3. According to the invention, through the arrangement of the mouth rinsing piece, the mouth rinsing can be carried out on the children after the children taste one taste, so that the influence on the accurate distinguishing taste of the children after the tastes such as sour, sweet, bitter and spicy taste are mixed is avoided, and meanwhile, the spicy taste can be relieved when the children taste the spicy taste.

4. According to the invention, through the arrangement of the lower jaw supporting plate, a certain supporting force can be provided when a child tastes the taste, so that the comfort in the use process is improved; in addition, the sanitary condition in the use process can be greatly improved due to the arrangement of the disposable suction port.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another orientation of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the present invention in partial cross-section of FIG. 1;

FIG. 4 is a schematic view of the present invention in partial cross-section of FIG. 2;

FIG. 5 is a schematic view of another embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the fixing frame and the lower jaw supporting plate of the present invention;

FIG. 7 is an exploded view of the portion of FIG. 6 in accordance with the present invention;

FIG. 8 is a schematic structural diagram of an intelligent switching mechanism according to the present invention;

FIG. 9 is a schematic view of the present invention in partial cross-section of FIG. 8;

FIG. 10 is a schematic view of the waste liquid tank according to the present invention;

FIG. 11 is a schematic view of a portion of the structure of the present invention.

In the figure: 1-a work box; 11-a fixing frame; 12-a lower jaw supporting plate; 13-a limiting plate; 14-waste liquid tank; 15-through groove; 16-an upper cover plate; 17-a liquid inlet pipe; 2-a handle; 3-a positioning element; 31-a storage box; 32-a stationary tube; 33-a positioning ball; 34-a spring; 35-positioning grooves; 4-guiding the lifting mechanism; 41-a display; 42-a support plate; 43-a mounting frame; 44-screw rod; 45-driving the motor; 46-a movable block; 5-a guide; 51-a guide seat; 52-a guide post; 6-intelligent switching mechanism; 61-a seasoning pot; 62-connecting pipe; 63-placing a tank seat; 64-mounting grooves; 65-a liquid outlet pipe; 66-a regulating valve; 67-fixed plate; 68-a positioning tube; 69-a hose; 7-a mouthpiece; 71-a clear water tank; 72-box placing seat; 8-Disposable mouthpiece.

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. 1-11, the present invention provides a technical solution:

as shown in fig. 1 and 2:

a VR-based scientific education display device for preschool children comprises a work box 1 placed on a platform and handles 2 arranged on two sides of the work box 1, wherein the work box 1 and the handles 2 are of conventional common structures, and are not described in detail;

as shown in fig. 3 and 4:

the positioning parts 3 on both sides of the storage box 31 respectively comprise a fixed tube 32 arranged on the side wall of the work box 1, a positioning ball 33 and a spring 34 movably arranged in the fixed tube 32, and positioning grooves 35 arranged on both sides of the storage box 31.

A storage box 31 for storing VR glasses is arranged in the work box 1 in a sliding manner, one side of the storage box 31 close to the seasoning pot 61 is of a reducing structure, positioning parts 3 are further arranged on two sides in the work box 1, both the positioning parts 3 are in contact with the storage box 31, each positioning part 3 comprises a fixing pipe 32 arranged on the side wall of the work box 1, a positioning ball 33 is movably arranged in each fixing pipe 32, a spring 34 is arranged between each positioning ball 33 and each fixing pipe 32, a positioning groove 35 clamped with each positioning ball 33 is formed in the side edge of each storage box 31, the storage box 31 is pulled, positioning of the storage boxes 31 by the positioning parts 3 on two sides is cancelled, the VR glasses are taken out, then the storage boxes 31 are pushed into the work box 1 and pushed to the end parts, the positioning balls 33 are clamped in the positioning grooves 35 under the action of the springs 34 and the positioning balls 33, so as to realize positioning of the storage boxes 31, especially in the transportation process, the setting of setting element 3 can avoid storing box 31 and slide in work box 1, guarantees the normal use in the handling.

As shown in fig. 3 and 5:

the guide lifting mechanism 4 includes a support plate 42 for finely adjusting the angle after lifting, a driving motor 45 for driving the display 41 to lift, a screw 44, a mounting bracket 43, and a movable block 46.

Work box 1 keeps away from and stores the inside display 41 that is used for connecting the VR glasses that is provided with in box 31 one side, work box 1 keeps away from and stores box 31 one side and still is provided with direction elevating system 4, display 41 is connected with direction elevating system 4, direction elevating system 4 is including setting up the backup pad 42 in work box 1 one side bottom, it is provided with mounting bracket 43 to rotate on backup pad 42, connect through the damping pivot between backup pad 42 and the mounting bracket 43, in order to realize 41 pivoted positioning effect of display, it is provided with screw rod 44 to rotate on mounting bracket 43, and the mounting bracket 43 top is provided with driving motor 45, driving motor 45 output is connected with screw rod 44, display 41 one side is provided with movable block 46, movable block 46 threaded connection is on screw rod 44, wherein, driving motor 45 model does: CJK02-KH-JLST-07, but not limited thereto;

as shown in fig. 3:

the guide 5 includes guide posts 52 and guide seats 51 that provide a limiting capability during the raising of the display 41.

The display device also comprises a guide part 5, the guide part 5 is arranged in the work box 1, the guide part 5 comprises two guide seats 51 arranged at the side edge of the display 41, a guide post 52 is arranged in the work box 1, two guide posts 52 are arranged, the top of the display 41 is provided with a diameter-variable structure, the guide seat 51 is movably sleeved outside the guide post 52, the driving motor 45 is started to drive the screw rod 44 to rotate, and the screw rod 44 drives the movable block 46 in threaded connection with the screw rod to ascend due to the limiting function of the guide seat 51 and the guide post 52 on the side of the display 41, that is, the display 41 is completely lifted, and when the display 41 is lifted to the outside of the work box 1, the guide holder 51 on the display 41 is separated from the guide post 52, at this time, the driving motor 45 is turned off, then, according to the observation habit of the young teacher, the mounting frame 43 is rotated to make the display 41 face the young teacher, so that the young teacher and other children can synchronously observe the content of the VR glasses.

As shown in fig. 6:

the left and the right are a limit plate 13, a fixed frame 11 and a lower jaw supporting plate 12 in sequence.

The inside mount 11 that is provided with of work box 1 slides in the mount 11 and is provided with chin fagging 12 that runs through 1 lateral wall of work box, and 12 both sides of chin fagging all are provided with limiting plate 13, and the mr pulls out chin fagging 12 to make things convenient for children to use.

As shown in fig. 7, 8 and 9:

the intelligent switching mechanism 6 comprises a tank placing seat 63 for timely flowing out liquid with corresponding taste according to the content of VR glasses, a mounting groove 64, a liquid outlet pipe 65, a regulating valve 66, a fixing plate 67, a positioning pipe 68 and a hose 69;

still including setting up at the inside intelligent switching mechanism 6 of work box 1, intelligent switching mechanism 6 and the VR glasses of placing in storage box 31 pass through signal connection, and the jar 61 of flavouring has been placed to work box 1 inside, and the jar 61 of flavouring is provided with a plurality ofly, and the inside liquid that is equipped with different tastes respectively, and this liquid can adopt corresponding food to make, if: the sour taste can be vinegar or lemon juice; sweet taste can be sugar water; bitter taste can be bitter melon juice; the spicy taste can be diluted chili solution; other flavors can be prepared according to actual conditions, food for preparing the flavors is not limited, and the flavors can be made correspondingly, one side of the working box 1 close to the storage box 31 is provided with a connecting pipe 62, the connecting pipe 62 is provided with a disposable suction port 8, the intelligent switching mechanism 6 comprises a plurality of can placing seats 63 arranged inside the working box 1, the seasoning cans 61 are respectively arranged in the can placing seats 63, the can placing seats 63 are provided with mounting grooves 64, the bottoms of the seasoning cans 61 are provided with liquid outlet pipes 65, the liquid outlet pipes 65 are provided with regulating valves 66, and the liquid outlet pipes 65 are arranged in the mounting grooves 64 so as to position the seasoning cans 61;

the fixed frame 11 is provided with a fixed plate 67, the connecting pipe 62 is arranged on the fixed plate 67, the inside of the working box 1 is also provided with a positioning pipe 68 so as to enable the liquid outlet pipe 65 arranged in the mounting groove 64 to be communicated with the positioning pipe 68, the bottoms of the positioning pipes 68 are connected with hoses 69, and the end parts of the hoses 69 are respectively connected to different interfaces of the connecting pipe 62;

the inside of the work box 1 is provided with a control terminal and a junction box, and the outside is provided with an indicator light, the control terminal can control the operation of the regulating valve 66 of the corresponding seasoning pot 61 according to the taste displayed in the VR glasses and the display 41, so that a child can taste the same taste displayed in the VR glasses, the child can wear the VR glasses, the disposable suction port 8 can be started after being contained in the mouth, and according to the taste observed in the VR glasses, the corresponding regulating valve 66 is controlled to be opened and closed through the control terminal, so that a certain amount of liquid flows out under the action of gravity, flows to the connecting pipe 62 through the hose 69 and then flows into the mouth of the child, so that the child can taste the corresponding taste, if the taste is not liked, the liquid can be directly coated in the waste liquid box 14 on one side, due to the diameter-changing structure of the waste liquid box 14, so that the child can accurately spit into the waste liquid box 14, and after tasting the taste every time, all have the clear water to flow to help children rinse the mouth, avoid taste such as sour sweet and bitter peppery to influence the accurate taste of distinguishing of children after mixing.

As shown in fig. 8 and 9:

the mouthpiece 7 comprises a holder 72 for rinsing the child after each time of tasting a different tasting liquid, a clean water tank 71, a liquid outlet tube 65, a control valve 66, a positioning tube 68 and a flexible tube 69.

The work box 1 is also internally provided with a mouth rinsing part 7, the mouth rinsing part 7 comprises a clean water tank 71 arranged in the work box 1, the clean water tank 71 is provided with a structure which is the same as that of the liquid outlet pipe 65 and the regulating valve 66, the work box 1 is internally provided with a structure which is the same as that of the positioning pipe 68 and the hose 69, the liquid outlet pipe 65 is communicated with the positioning pipe 68, and two ends of the hose 69 are respectively communicated with the positioning pipe 68 and the connecting pipe 62;

the inside of the working box 1 is also provided with a box placing seat 72 to ensure that the clean water box 71 can be stably placed.

As shown in fig. 10:

a carriage for providing a guiding limit capability to the waste liquid tank 14 and the waste liquid tank 14 are provided in order from left to right.

One side of the working box 1 is also provided with a waste liquid box 14 in a sliding manner, the waste liquid box 14 is of a reducing structure with the diameter of the top larger than that of the bottom, the position of the waste liquid box 14 can be arranged on the other side relative to the disposable suction port 8, and the waste liquid boxes 14 can be arranged on the two sides.

As shown in fig. 11:

the top of the working box 1 is provided with a through groove 15 for conveniently filling the seasoning tank 61 and the clear water tank 71, a liquid inlet pipe 17 respectively arranged at the tops of the seasoning tank 61 and the clear water tank 71, and an upper cover plate 16 convenient for sealing.

Through groove 15 has been seted up at 1 top of work box, and upper cover plate 16 has been placed at the top, and jar 61 of flavouring, clear water tank 71 and upper cover plate 16 are transparent material, and the jar 61 top of flavouring is provided with feed liquor pipe 17 to can observe surplus content in the jar 61 of flavouring, and in time add.

When the seasoning can is used, a young teacher observes whether the seasoning can 61, the clear water tank 71 and the connecting pipe 62 are clean or not, the use safety is guaranteed, then liquid with corresponding taste is added into the seasoning can 61 respectively according to different tastes required to be taught on the same day, the upper cover plate 16 is opened, the packaged seasoning can 61 is placed in the can placing seat 63, in the placing process, the seasoning can 61 can be placed completely only by placing the liquid outlet pipe 65 in the mounting groove 64, at the moment, the liquid outlet pipe 65 is communicated with the positioning pipe 68, similarly, the clear water tank 71 is mounted on the can placing seat 72, then the regulating valve 66 is electrically connected with the junction box respectively, and after the connection is completed, the through hole is covered by the upper cover plate 16;

a young teacher holds the handle 2 with two hands to move the work box 1 into a classroom, the driving motor 45 is started to drive the screw rod 44 to rotate, due to the limiting effect of the guide seat 51 and the guide post 52 on the side of the display 41, the screw rod 44 drives the movable block 46 in threaded connection with the screw rod to ascend, namely, the ascending of the display 41 is completed, when the display 41 ascends to the outer side of the work box 1, the guide seat 51 on the display 41 is separated from the guide post 52, at the moment, the driving motor 45 is closed, and then the mounting frame 43 is rotated according to the observation habit of the young teacher to enable the display 41 to face the young teacher, so that the young teacher and other children can synchronously observe the content of VR glasses;

a young teacher pulls out the lower jaw supporting plate 12 and the waste liquid tank 14 to facilitate the use of children, inserts the disposable suction port 8 into the connecting pipe 62, pulls the storage box 31, cancels the positioning of the positioning pieces 3 at two sides on the storage box 31, takes out the VR glasses, pushes the storage box 31 into the working box 1, and when the storage box is pushed to the end part, under the action of the spring 34 and the positioning ball 33, the positioning ball 33 is clamped in the positioning groove 35 to realize the positioning of the storage box 31, particularly in the carrying process, the positioning pieces 3 can prevent the storage box 31 from sliding in the working box 1, and the normal use in the carrying process is ensured;

finally, the child wears VR glasses, contain disposable suction inlet 8 in the mouth and can begin, and according to the taste that observes in the VR glasses, open and close through control terminal control corresponding regulation and control valve 66, in order under the action of gravity, a certain amount of liquid flows out, flow to connecting pipe 62 through hose 69 and flow into children's mouth again, make children can taste corresponding taste, if do not like this taste, can directly scribble in the waste liquid case 14 of one side, because of the reducing structure of waste liquid case 14, so that children can accurately vomit into waste liquid case 14, and after tasting the taste every time, all have the clear water to flow out, in order to help children gargle, avoid the taste such as sour and sweet and spicy to influence children's accurate taste of distinguishing after mixing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.