CN110624260B

CN110624260B - Folding electronic toy

Info

Publication number: CN110624260B
Application number: CN201911033102.2A
Authority: CN
Inventors: 请求不公布姓名; 黄世贵
Original assignee: Fujian Mingta Toys Co ltd
Current assignee: Fujian Mingta Toys Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2024-04-02
Anticipated expiration: 2039-10-28
Also published as: CN110624260A

Abstract

The invention relates to a folding electronic toy, which comprises a first cover plate device and a second cover plate device, wherein the first cover plate device and the second cover plate device are mutually connected in a rotating way through a rotating connecting device, one of the first cover plate device and the second cover plate device is provided with the electronic toy, the other one of the first cover plate device and the second cover plate device is provided with a power supply component, and two groups of conducting devices for respectively realizing corresponding conduction between the positive electrode and between the negative electrode and the negative electrode of the electronic toy and the power supply component are arranged between the connecting parts of the first cover plate device and the second cover plate device. The folding electronic toy comprises a first cover plate and a second cover plate, wherein the first cover plate is provided with the electronic toy, the second cover plate is provided with a power supply assembly, the first cover plate and the second cover plate can be folded by mutually turning over the cover, and the conductive connection between the electronic toy and the power supply assembly can be realized through a conduction device.

Description

Folding electronic toy

Technical Field

The present invention relates to folding electronic toys.

Background

The liquid crystal handwriting board realizes paperless writing, replaces a toilet paper, a sketch book and a whiteboard, can be used for recording notes, messages, backlogs, shopping lists, painting and calligraphy, arithmetic, games, scoring, mathematical checking and the like, is convenient to use, can save paper, and has positive and effective effects on sustainable development.

However, the liquid crystal handwriting boards in the market at present are all straight boards, have no flip cover, have single functions and cannot meet the increasing demands of people.

If the electronic toy is to be made into a flip, the stability and the use space of the electronic toy are required, for example, a panel where the liquid crystal handwriting board is located is required to be as large as possible, and a frame is required to be as small as possible, then the power supply component is required to be preferably arranged on the other panel, and thus a conduction device capable of realizing conductive connection between the first cover plate and the second cover plate provided with the power supply component is required to be arranged between the first cover plate and the second cover plate. However, there is no conduction device with simple structure which can realize the conductive connection between the two devices on the market.

Similar problems exist with electronic toys like liquid crystal writing pads.

Disclosure of Invention

The invention provides a folding electronic toy, which comprises a first cover plate provided with the electronic toy and a second cover plate provided with a power supply component, wherein the first cover plate and the second cover plate can be mutually turned and folded, and conductive connection between the electronic toy and the power supply component can be realized through a conduction device.

The invention is realized by the following technical scheme:

The foldable electronic toy comprises a first cover plate device and a second cover plate device, wherein the first cover plate device and the second cover plate device are connected together through a rotary connecting device in a rotary mode, one of the first cover plate device and the second cover plate device is provided with the electronic toy, the other one of the first cover plate device and the second cover plate device is provided with a power supply assembly, and two groups of conduction devices which are used for enabling the electronic toy and the positive electrode of the power supply assembly to be correspondingly conducted and enabling the electronic toy and the negative electrode of the power supply assembly to be correspondingly conducted are arranged between the connection parts of the first cover plate device and the second cover plate device;

the first cover plate device comprises a first cover plate frame body, the second cover plate device comprises a second cover plate frame body, and two sections of first shaft sleeves which are coaxially and sequentially arranged at intervals along a rotation center line are arranged on one side of the first cover plate frame body adjacent to the second cover plate frame body; the second cover plate frame body is provided with a section of third shaft sleeve which is positioned between the two first shaft sleeves and coaxial with the first shaft sleeves at one side of the second cover plate frame body adjacent to the first cover plate frame body;

a first middle shaft hole coaxially penetrating through the inner surface and the outer surface of the side end wall is formed in the end wall of one side, close to the third shaft sleeve, of each first shaft sleeve, and a first clamping groove is formed in the inner cavity of each first shaft sleeve at a position close to the first middle shaft hole; the axial two side end walls of the third shaft sleeve are respectively provided with a second intermediate shaft hole which coaxially penetrates through the inner surface and the outer surface of the corresponding side end wall, the inner cavity of the third shaft sleeve is provided with a second clamping groove at a position close to each second intermediate shaft hole, and the first intermediate shaft hole of each first shaft sleeve and one second intermediate shaft hole of the third shaft sleeve adjacent to the first intermediate shaft hole are coaxially communicated with each other;

A group of conduction devices are respectively arranged between the third shaft sleeve and the adjacent part of each first shaft sleeve; each group of conduction devices comprises two elastic conductive contact assemblies which are sequentially arranged along a rotation center line and are in contact with each other at one end, and each elastic conductive contact assembly comprises a conductive cylinder, a conductive first spring and a conductive sheet which are sequentially arranged from the contact end along the rotation center line to the other end; the outer circumferential wall of the conductive cylinder of one elastic conductive contact assembly is rotationally sleeved in the first middle shaft hole of one first shaft sleeve, the conductive sheet is clamped in the first clamping groove of the first shaft sleeve, the conductive cylinder of the other elastic conductive contact assembly which is contacted with the elastic conductive contact assembly is rotationally sleeved in the second middle shaft hole of the third shaft sleeve adjacent to the first middle shaft hole of the first shaft sleeve, and the conductive sheet is clamped in the second clamping groove of the corresponding adjacent part of the third shaft sleeve; the conductive first spring of each elastic conductive contact assembly is in jacking connection between the conductive cylinders and the conductive sheets of the same group of elastic conductive contact assemblies, so that the conductive cylinders of the two elastic conductive contact assemblies in mutual contact keep a jacking contact state;

the conductive sheets of the two elastic conductive contact assemblies arranged in the third shaft sleeve are correspondingly connected with the positive electrode and the negative electrode of the electronic toy or the power supply assembly arranged on the second cover plate frame body through conductive connecting pieces respectively, and the conductive sheets of the two elastic conductive contact assemblies arranged in the two first shaft sleeves are correspondingly connected with the positive electrode and the negative electrode of the power supply assembly or the electronic toy arranged on the first cover plate frame body through conductive connecting pieces respectively.

The folding electronic toy of this scheme has the collection of more than one electronic toy, and first apron and second apron can flip each other and fold to the function of this handwriting pad has been extended. When in use, the upper second cover plate can be used only by being turned open. And when the first cover plate and the second cover plate all need to be powered, the first cover plate and the second cover plate can be electrically communicated through the conducting device, and the structure is simple.

Further, for convenience of wiring: each conductive sheet is connected with a lug extending outwards for being connected with a conductive connecting piece.

Further, for installation and use, the conductive cylinder is restricted from being inserted into the first intermediate shaft hole or the second intermediate shaft hole: the outer circumferential wall of the conductive cylinder is provided with a first limit flange which is clamped on the outer end face of one side of the first middle shaft hole or the second middle shaft hole, which is close to the conductive first spring, and is used for limiting the conductive cylinder to be inserted into the first middle shaft hole or the second middle shaft hole.

Further, in order to facilitate plugging the elastic conductive contact assembly: the groove plugging direction of the first clamping groove and the second clamping groove is perpendicular to the rotation center line of the first cover plate device and the second cover plate device, a first notch which extends from the groove inserting opening to the middle of the groove and is used for placing the conductive first spring is formed in the groove wall of one side of the conductive cylinder, and the caliber of the first notch is larger than the outer diameter of the conductive first spring.

Further, the rotation connecting device comprises two sections of second sleeves which are respectively and fixedly connected to the second cover plate frame body and are respectively and coaxially arranged at the outer sides of the two sections of first sleeves, and two groups of rotation limiting assemblies which respectively enable each second sleeve to be connected with the adjacent first sleeve in a rotation mode and can adjust and fix the relative rotation angle between the second sleeve and the first sleeve.

The rotary connecting device can be a polish rod inserted between the second shaft sleeve and the first shaft sleeve and a locking component fixed outside the polish rod.

Preferably the following three devices:

preferably, the method comprises the following steps: each group of rotation limiting components comprises a first pressing block, a guide nut and a bolt;

the two axial outer end parts of the first shaft sleeve are respectively provided with a first shaft hole extending along the axial direction, and each section of second shaft sleeve is internally provided with a second shaft hole, a nut mounting slotted hole and a screw rod inserting hole which are sequentially and coaxially communicated from one inner side to one outer side along the axial direction; the aperture of the screw insertion hole is smaller than the aperture of the nut mounting slot hole and the outer diameter of the nut head of the bolt; the aperture of the second shaft hole is larger than that of the nut mounting groove hole;

the first pressing block comprises a pressing block body and a pressing block cylinder shaft which is fixedly arranged in the middle of the inner side of the pressing block body and extends along the axial direction; the pressing block body is connected in the second shaft hole in a sliding way, and a limiting part which is matched with each other and enables the pressing block body to only axially move relative to the second shaft hole and not rotate is arranged between the inner peripheral wall of the second shaft hole and the outer peripheral wall of the pressing block body; the pressing block cylindrical shaft is coaxially and rotatably sleeved in the first shaft hole;

The guide nut is arranged in the nut mounting groove hole, and the guide nut can only axially move relative to the nut mounting groove hole and cannot rotate; the screw rod of the bolt sequentially passes through the screw rod inserting hole and the internal threaded hole of the guide nut from outside to inside and then is propped against the outer side end surface of the first pressing block, and the screw rod of the bolt is in threaded connection with the internal threaded hole of the guide nut and can prop against or loosen the first pressing block in the rotating process of the internal threaded hole of the relative guide nut.

The first cover plate and the second cover plate are hinged to each other to rotate, the bolts are rotated inwards, the pressing blocks are pressed against to enable the pressing blocks to be fastened and fixed with the first shaft sleeve and not capable of being turned over, and the bolts are rotated outwards to enable the pressing blocks to be not fastened with the first shaft sleeve. The first cover plate device and the second cover plate device can be randomly adjusted and fixed on a certain overturning angle by rotating the bolts, so that the electronic toy can be placed and used at any angle.

Further, in order to prevent the briquette body from rotating in the second shaft hole around the axial direction, the first cover plate device and the first cover plate device cannot be mutually rotated: the limiting part comprises more than one first through groove extending along the axial direction and arranged on the outer peripheral wall of the pressing block body, and more than one convex strip matched with the first through groove and arranged on the inner peripheral wall of the second shaft hole.

Further, in order to increase the friction between the briquette body and the first shaft sleeve: the periphery of the briquetting cylinder shaft is also sleeved with a soft rubber pad positioned between the inner side end face of the briquetting body and the outer side end face of the first shaft sleeve.

Preferably two:

the axial two outer end parts of the first shaft sleeve are respectively provided with a first shaft hole extending along the axial direction, the axial two outer end faces of the first shaft sleeve are respectively provided with an end face gear ring I which is distributed around the periphery of the first shaft hole,

each section of the second shaft sleeve is provided with a second shaft hole extending along the axial direction, a fixing plate vertical to the axial direction is fixedly arranged in the second shaft hole, the fixing plate divides the second shaft hole into a first cavity close to one end of the first shaft sleeve and a second cavity far away from one end of the first shaft sleeve, the fixing plate is provided with more than one guide shaft hole penetrating the fixing plate along the direction parallel to the axis of the second shaft hole and being different from the axis of the second shaft hole,

each group of rotation limiting assemblies comprises a second pressing block and limiting columns, the second pressing block comprises a second pressing block body, a second pressing block shaft which extends along the axial direction towards the direction far away from the end face is fixedly connected to the middle part of the end face, close to the first end face gear ring, of the second pressing block body, a plurality of end face gear rings II which extend along the radial direction and are matched with the first end face gear ring are arranged on the end face, close to the first end face gear ring, of the second pressing block body at intervals around the periphery of the second pressing block shaft, and more than one fixing bolt which extends along the direction parallel to the axial line of the second pressing block shaft and is in movable plug-in fit with the corresponding guide shaft hole on the second sleeve is arranged on the end face, far away from the first end face gear ring; the second pressing block body is movably arranged in the first cavity, the fixing bolt penetrates through the guide shaft hole from the first cavity and stretches into the second cavity, and the second pressing block shaft is rotatably sleeved in the first shaft hole; the limiting column is inserted in the second cavity in a tight fit mode, and when the limiting column moves into place in the second cavity, the limiting column can inwards push the fixing bolt to enable the end face gear ring II of the second pressing block to be pressed on the end face gear ring I of the first shaft sleeve.

According to the scheme, the first cover plate and the second cover plate can be randomly adjusted to turn over the turnover angle, one cover plate is fixed, the other cover plate is rotated, and the end face gear ring I and the tooth slot II are in mutual contact and limit, so that the purpose of multistage angles can be achieved.

Further, to increase friction: and a second soft rubber pad sleeved on the second pressing block shaft is also arranged between the second pressing block body and the end face of the first shaft sleeve.

Further, each group of rotation limiting components further comprises a sleeve cover arranged on the opening of the second cavity, an internal threaded hole is formed in the middle of the limiting column, and an external threaded rod extending into the internal threaded hole and connected with the internal threaded hole in a threaded fit mode is arranged at one end of the sleeve cover, facing the second cavity.

Preferably, the number of the guide shaft holes is three, and the guide shaft holes are uniformly distributed at equal intervals along the circumferential direction around the axis of the second shaft hole.

Further, a notch for facilitating the turnover cover is arranged on the second cover plate device.

Further, the distance between the end face of the second pressing block shaft far away from the second pressing block body and the end face of the second pressing block body far away from the second pressing block shaft is smaller than or equal to the distance between the outer end face of the first shaft sleeve close to the second shaft sleeve and the inner end face of the first cavity far away from the first shaft sleeve.

Preferably three: the two axial outermost end parts of the first shaft sleeve are respectively provided with a first shaft hole extending along the axial direction, the two axial outermost end surfaces of the first shaft sleeve are respectively provided with an end surface gear ring I which is distributed around the periphery of the first shaft holes, the first shaft sleeve body is internally provided with a first shaft sleeve cavity which is positioned between the two first shaft holes and has a pore diameter larger than that of the first shaft holes, and the outermost end parts of the first shaft sleeve cavities are communicated with the adjacent first shaft holes;

a second shaft hole extending along the axial direction is arranged in each section of second shaft sleeve body,

each group of rotation limiting assemblies comprises a rotating shaft, the rotating shaft comprises a middle rotating shaft sleeve and a limiting cover arranged at the outer end of the rotating shaft sleeve, more than one second limiting flange protruding outwards in the radial direction is arranged on the outer edge of the inner end cylinder wall of the rotating shaft sleeve, which is far away from the limiting cover, and when the number of the second limiting flanges is more than two, the second limiting flanges are distributed at intervals along the circumferential direction of the cylinder wall; the inner end cylinder wall of the rotating shaft sleeve, which is far away from the limit cover, is also provided with more than two second notches which are distributed at intervals along the circumferential direction of the cylinder wall and extend from the end to the other end along the axial direction;

each group of rotation limiting assemblies further comprises a third pressing block rotationally sleeved outside the rotating shaft sleeve and a spring sleeved outside the rotating shaft sleeve and propped between the third pressing block and the limiting cover, wherein an end face of the third pressing block, which is close to the first shaft hole, is provided with an end face gear ring III matched with the end face gear ring I;

The limiting cover is fixed on the outer side of the outer end opening of the second shaft hole, the inner end wall of the rotating shaft sleeve penetrates through the second shaft hole and stretches into the first shaft sleeve cavity, the second limiting flange is clamped on the connecting end face of the second shaft hole and the first shaft sleeve cavity, and the inner end wall of the rotating shaft sleeve is rotatably sleeved in the first shaft hole.

According to the scheme, the first cover plate and the second cover plate can be randomly adjusted to turn over the turnover angle, one cover plate is fixed, the other cover plate is rotated, and the gear ring I and the gear ring are in three-phase mutual contact limiting, so that the purpose of multistage angle can be achieved.

Further, the outer peripheral wall of the third pressing block is provided with more than 1 second through grooves extending along the parallel axial direction at intervals along the circumferential direction, and the inner peripheral wall of the second shaft hole is provided with more than one second raised strips matched with the second through grooves.

Further, the gear rings of the first end face gear ring and the third end face gear ring respectively comprise a plurality of racks which extend along the radial direction of the first shaft hole or the third pressing block and are uniformly distributed at intervals in sequence along the circumferential direction of the first shaft hole or the third pressing block, the section of each rack perpendicular to the extending direction is in an isosceles triangle shape, and the vertex angle of the isosceles triangle is larger than 60 degrees.

Further, the electronic toy is a liquid crystal handwriting board. But also can be other electronic toys needing electricity.

Further, the power supply assembly comprises a circuit control board and a battery assembly connected with the circuit control board for supplying power, and a voice broadcasting device, a switch key and a plurality of sound control keys are further arranged on the first cover plate frame body or the second cover plate frame body provided with the power supply assembly;

the voice control key is connected with the circuit control board and used for transmitting the input information of the voice control key to the circuit control board, and the circuit control board is connected with the voice broadcasting device and used for triggering the voice broadcasting device to broadcast corresponding voice after receiving the input information of the voice control key; the switch key is connected between the circuit control board and the battery assembly and used for controlling the on-off of the circuit;

the first cover plate frame body or the second cover plate frame body is provided with a plurality of first through holes for exposing the sound control keys to be convenient to press and second through holes for exposing the switch keys.

The voice broadcasting device can be directly connected with the battery assembly through a wire, and can also be connected with the battery assembly through a circuit control board.

Further, the conducting strip is connected with the circuit control board or the battery assembly through the conducting connecting piece, a control key for controlling the on-off between the conducting strip and the circuit control board or the battery assembly so as to control the on-off work of the liquid crystal handwriting board is further arranged on the first cover board frame body or the second cover board frame body provided with the power assembly, and a third through hole for exposing the control key to be convenient for pressing is formed in the first cover board frame body or the second cover board frame body.

Further, a pen slot for placing a pen for a liquid crystal handwriting board is formed in the first cover plate frame body or the second cover plate frame body.

Further, the first cover plate frame body consists of a first cover plate upper frame body and a first cover plate lower frame body which are arranged up and down, and the liquid crystal handwriting board is clamped between the first cover plate upper frame body and the first cover plate lower frame body; the first cover plate upper frame body consists of a second cover plate upper frame body and a second cover plate lower frame body which are arranged up and down, and a cavity for accommodating and installing the power supply assembly is arranged between the second cover plate upper frame body and the second cover plate lower frame body.

Compared with the prior art, the invention has the following beneficial effects: the folding electronic toy comprises a first cover plate and a second cover plate, wherein the first cover plate is provided with the electronic toy, the second cover plate is provided with a power supply assembly, the first cover plate and the second cover plate can be folded by mutually turning over the cover, and the conductive connection between the electronic toy and the power supply assembly can be realized through a conduction device.

When the first cover plate is a liquid crystal handwriting board, the second cover plate is a piano panel, and the power supply assembly is arranged on the second cover plate, so that the first cover plate leaves the largest use space for the liquid crystal handwriting board.

Drawings

The invention is further described below with reference to the accompanying drawings in conjunction with examples:

fig. 1 is a schematic structural view of embodiment 1 of the present invention. (first and second cover plate closed state)

Fig. 2 is a schematic structural view of embodiment 1 of the present invention. (front surface of the first and second cover plates in the open state)

Fig. 3 is a schematic diagram of an exploded structure of embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of embodiment 1 of the present invention. (a bottom view of the lower frame body of the second cover plate is omitted when the first and second cover plates are opened).

Fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Fig. 6 is a schematic structural view of embodiment 1 of the present invention. (a bottom view of the upper frame body of the second cover plate is omitted when the first and second cover plates are opened).

Fig. 7 is an enlarged schematic view of a portion B of fig. 6.

Fig. 8 is a schematic structural view of embodiment 1 of the present invention. (schematic view in partial section of the first and second cover plates in the open state)

Fig. 9 is an enlarged schematic view of a portion C of fig. 8.

Fig. 10 is a schematic structural view of the upper frame of the second cover plate of embodiment 1 of the present invention.

Fig. 11 is a schematic structural view of the upper frame of the first cover plate of embodiment 1 of the present invention.

Fig. 12 is a schematic view of the structure of the lower frame of the first cover plate of embodiment 1 of the present invention.

Fig. 13 is a schematic view of the structure of a second hinge shaft according to embodiment 1 of the present invention.

Fig. 14 is a schematic structural view of embodiment 2 of the present invention. (first and second cover plate open State view)

Fig. 15 is an enlarged schematic view of a portion D of fig. 14.

Fig. 16 is a schematic structural view of a rotation limiting assembly according to embodiment 2 of the present invention.

Fig. 17 is a schematic view showing the structure of the upper cover plate in embodiment 2 of the present invention.

Fig. 18 is a schematic view showing the internal structure of the lower cover plate of embodiment 2 of the present invention.

Fig. 19 is an enlarged schematic view of the portion E of fig. 18.

Fig. 20 is a schematic view of a partially sectional structure of embodiment 3 of the present invention. (first and second cover plate open State view)

Fig. 21 is an enlarged schematic view of the portion F of fig. 20.

Fig. 22 is a schematic structural view of a first cover plate of embodiment 3 of the present invention.

Fig. 23 is a schematic structural view of a part of the second cover plate in embodiment 3 of the present invention.

Fig. 24 is a schematic structural diagram of a second cover plate and a rotation limiting assembly according to embodiment 3 of the present invention.

Fig. 25 is a schematic partial structure of embodiment 4 of the present invention.

Fig. 26 is an exploded view of a rotation limiting assembly mated with the second hub of fig. 25.

Fig. 27 is a schematic structural view of a second cover plate device of embodiment 4 of the present invention.

Fig. 28 is a schematic structural view of a first cover plate device of embodiment 4 of the present invention.

Fig. 29 is a side view from the first cover plate direction of embodiment 4 of the present invention.

Fig. 30 is an enlarged schematic view of part G of fig. 29 in partial cross section.

Detailed Description

The present invention is described in detail below with reference to the attached drawings and specific examples of the specification:

example 1

The foldable electronic toy comprises a first cover plate device 1 and a second cover plate device 2, wherein the first cover plate device 1 and the second cover plate device 2 are connected with each other in a rotating way through a rotating connecting device, one of the first cover plate device 1 and the second cover plate device 2 is provided with an electronic toy 1-1-1, the other is provided with a power supply component, and two groups of conduction devices for respectively realizing corresponding conduction between the positive electrode and between the negative electrode and the negative electrode of the electronic toy 1-1-1 and the power supply component are arranged between the connecting parts of the first cover plate device 1 and the second cover plate device 2;

the first cover plate device 1 comprises a first cover plate frame body 1-1, the second cover plate device 2 comprises a second cover plate frame body 2-1, and two sections of first shaft sleeves 1-2 which are coaxially and sequentially arranged at intervals along a rotation center line are arranged on one side of the first cover plate frame body 1-1 adjacent to the second cover plate frame body 2-1; the second cover plate frame body 2-1 is provided with a section of third shaft sleeve 2-3 which is positioned between the two first shaft sleeves 1-2 and coaxial with the first shaft sleeves 1-2 at one side of the second cover plate frame body adjacent to the first cover plate frame body 1-1;

A first intermediate shaft hole 1-2-4 which coaxially penetrates through the inner surface and the outer surface of the side end wall is arranged on the side end wall of each first shaft sleeve 1-2 close to the third shaft sleeve 2-3, and a first clamping groove 1-2-3 is arranged in the inner cavity of each first shaft sleeve 1-2 at a position close to the first intermediate shaft hole 1-2-4; the axial two side end walls of the third shaft sleeve 2-3 are respectively provided with a second intermediate shaft hole 2-3-2 which coaxially penetrates through the inner surface and the outer surface of the corresponding side end wall, the inner cavity of the third shaft sleeve 2-3 is provided with a second clamping groove 2-3-1 at a position close to each second intermediate shaft hole 2-3-2, and the first intermediate shaft hole 1-2-4 of each first shaft sleeve 1-2 and one second intermediate shaft hole 2-3-2 of the adjacent third shaft sleeve 2-3 are coaxially communicated with each other;

a group of conduction devices 3-2 are respectively arranged between the third shaft sleeve 2-3 and the adjacent part of each first shaft sleeve 1-2; each group of conduction devices 3-2 comprises two elastic conductive contact assemblies which are sequentially arranged along a rotation center line and are in contact with each other at one end, and each elastic conductive contact assembly comprises a conductive cylinder 3-2-2, a conductive first spring 3-2-1 and a conductive sheet 3-2-3 which are sequentially arranged from the contact end along the rotation center line to the other end; the outer circumferential wall of the conductive cylinder 3-2-2 of one elastic conductive contact assembly is rotationally sleeved in the first middle shaft hole 1-2-4 of one first shaft sleeve 1-2, the conductive sheet 3-2-3 is clamped in the first clamping groove 1-2-3 of the first shaft sleeve 1-2, the conductive cylinder 3-2-2 of the other elastic conductive contact assembly contacted with the elastic conductive contact assembly is rotationally sleeved in the second middle shaft hole 2-3-2 of the third shaft sleeve 2-3 adjacent to the first middle shaft hole 1-2-4 of the first shaft sleeve 1-2, and the conductive sheet 3-2-3 is clamped in the second clamping groove 2-3-1 of the corresponding adjacent part of the third shaft sleeve 2-3; the conductive first spring 3-2-1 of each elastic conductive contact assembly is in pressing connection between the conductive cylinder 3-2-2 and the conductive sheet 3-2-3 of the same group of elastic conductive contact assemblies, and the conductive cylinders 3-2-2 of the two elastic conductive contact assemblies which are in mutual contact are kept in a pressing contact state;

The conductive plates 3-2-3 of the two elastic conductive contact assemblies arranged in the third shaft sleeve 2-3 are correspondingly connected with the positive electrode and the negative electrode of the electronic toy 1-1 or the power supply assembly arranged on the second cover plate frame body 2-1 through conductive connecting pieces respectively, and the conductive plates 3-2-3 of the two elastic conductive contact assemblies arranged in the two first shaft sleeves 1-2 are correspondingly connected with the positive electrode and the negative electrode of the power supply assembly or the electronic toy 1-1-1 arranged on the first cover plate frame body 1-1 through conductive connecting pieces respectively.

The folding electronic toy of this scheme has the collection of more than one electronic toy, and first apron and second apron can flip each other and fold to the function of this handwriting pad has been extended. When the cover plate is used, the first cover plate and the second cover plate can be used only by opening the first cover plate and the second cover plate. And when the first cover plate and the second cover plate all need to be powered, the first cover plate and the second cover plate can be electrically communicated through the conducting device, and the structure is simple.

This embodiment is for convenience of wiring: each of the conductive tabs 3-2-3 is connected with an outwardly extending tab 3-2-4 for connection with a conductive connector. In this embodiment, the connection pieces 3-2-4 are not provided, and the wires can be directly welded on the two conductive pieces 3-2-3.

In order to install and use the present embodiment, the conductive cylinder 3-2-2 is restricted from being inserted into the first intermediate shaft hole 1-2-4 or the second intermediate shaft hole 2-3-2: the outer circumferential wall of the conductive cylinder 3-2-2 is provided with a first limit flange 3-2-5 which is clamped on the first middle shaft hole 1-2-4 or the second middle shaft hole 2-3-2 near the outer end surface of one side of the conductive cylinder 3-2-1 and is used for limiting the conductive cylinder 3-2-2 to be inserted into the first middle shaft hole 1-2-4 or the second middle shaft hole 2-3-2 at one end near the conductive first spring 3-2-1. The first limit flange may not be provided when the pressure control of the spring is just correct.

In this embodiment, in order to facilitate plugging, the elastic conductive contact assembly: the inserting direction of the channels of the first clamping groove 1-2-3 and the second clamping groove 2-3-1 is perpendicular to the rotation center lines of the first cover plate device 1 and the second cover plate device 2, a first notch 7 which extends from the channel inserting port to the middle of the channel and is used for placing the first spring 3-2-1 is formed in the groove wall of one side of the first clamping groove 1-2-3 and the groove wall of one side of the second clamping groove 2-3-1, which faces the conductive cylinder 3-2-2, and the caliber of the first notch 7 is larger than the outer diameter of the first spring 3-2-1.

The rotation connection device in this embodiment includes two sections of second sleeves 2-2 which are respectively and fixedly connected to the second cover plate frame body 2-1 and are respectively and coaxially arranged at the outer sides of the two sections of first sleeves 1-2 in the axial direction, and two groups of rotation limiting assemblies which respectively enable each second sleeve 2-2 to be rotationally connected with the adjacent first sleeve 1-2 and can adjust and fix the relative rotation angle between the second sleeve 2-2 and the first sleeve 1-2.

The rotary connecting device can be a polish rod inserted between the second shaft sleeve 2-2 and the first shaft sleeve 1-2 and a locking component fixed outside the polish rod.

The electronic toy 1-1-1 in this embodiment is a liquid crystal handwriting board. But also can be other electronic toys needing electricity.

The power supply assembly comprises a circuit control board 2-1-3 and a battery assembly 2-1-6 connected with the circuit control board 2-1-3 for supplying power, wherein a voice broadcasting device 2-1-4, a switch key 2-1-8 and a plurality of sound control keys 2-1-5 are also arranged on the first cover plate frame body 1-1 or the second cover plate frame body 2-1 provided with the power supply assembly;

the voice control key 2-1-5 is connected with the circuit control board 2-1-3 to transmit the input information of the voice control key 2-1-5 to the circuit control board 2-1-3, and the circuit control board 2-1-3 is connected with the voice broadcasting device 2-1-4 to trigger the voice broadcasting device 1-3 to broadcast corresponding voice after receiving the input information of the voice control key 2-1-5; the switch keys 2-1-8 are connected between the circuit control boards 2-1-3 and the battery components 2-1-6 and used for controlling the on-off of the circuit;

the first cover plate frame body 1-1 or the second cover plate frame body 2-1 is provided with a plurality of first through holes 2-1-7 for exposing the sound control keys 2-1-5 to be convenient for pressing and second through holes 2-1-9 for exposing the switch keys 2-1-8.

The voice broadcasting device can be directly connected with the battery assembly through a wire, and can also be connected with the battery assembly through the circuit control boards 2-1-3.

In this embodiment, the conductive sheet 3-2-3 is connected with the circuit control board 2-1-3 or the battery assembly 2-1-6 through a conductive connecting piece, the first cover board frame body 1-1 or the second cover board frame body 2-1 provided with the power assembly is further provided with a control key 2-1-10 for controlling the on-off between the conductive sheet 3-2-3 and the circuit control board 2-1-3 or the battery assembly 2-1-6 so as to control the on-off operation of the liquid crystal handwriting board, and the first cover board frame body 1-1 or the second cover board frame body 2-1 is provided with a third through hole 2-1-11 for exposing the control key 2-1-10 to be convenient for pressing. The present embodiment is only for increasing the interest, and the functions of the device are more abundant, such as setting the sound control key and the voice broadcasting device.

In this embodiment, a pen slot 2-1-12 for placing a pen for a liquid crystal writing pad is provided on the first cover frame body 1-1 or the second cover frame body 2-1.

The first cover plate frame body 1-1 in this embodiment is composed of a first cover plate upper frame body 1-1-2 and a first cover plate lower frame body 1-1-3 which are arranged one above the other, and the liquid crystal handwriting board is clamped between the first cover plate upper frame body 1-1-2 and the first cover plate lower frame body 1-1-3; the first cover plate upper frame body 1-1-2 is composed of a second cover plate upper frame body 2-1-1 and a second cover plate lower frame body 2-1-2 which are arranged up and down, and a cavity for accommodating and installing the power supply component is arranged between the second cover plate upper frame body 2-1-1 and the second cover plate lower frame body 2-1-2.

Example 2

The differences from the above embodiments are: the embodiment comprises a first cover plate device 1 and a second cover plate device 2 which is rotationally connected with the first cover plate device 1;

the first cover plate device 1 comprises a first cover plate main body 1-1 and a first shaft sleeve 1-2 fixedly arranged in the middle of the edge of one side of the first cover plate main body 1-1 adjacent to the second cover plate device 2;

the second cover plate device 2 comprises a second cover plate main body 2-1 and two sections of second shaft sleeves 2-2 which are respectively and fixedly arranged at the edges of one side, adjacent to the first cover plate device 1, of the second cover plate main body 2-1 and are respectively and coaxially arranged at the outer sides of the two axial ends of the first shaft sleeve 1-2;

the two axial ends of the first shaft sleeve 1-2 are respectively connected with the second shaft sleeve 2-2 at the adjacent end in a coaxial rotation way through a group of rotation limiting assemblies; each group of rotation limiting components comprises a first pressing block 3-1, a guide nut 3-4 and a bolt 3-3;

the two axial outer end parts of the first shaft sleeve 1-2 are respectively provided with a first shaft hole 1-2-5 extending along the axial direction, and each section of second shaft sleeve 2-2 is internally provided with a second shaft hole 2-2-2, a nut mounting slotted hole 2-2-3 and a screw rod inserting hole 2-2-9 which are sequentially and coaxially communicated from one inner end to one outer end along the axial direction; the aperture of the screw insertion hole 2-2-9 is smaller than the aperture of the nut mounting slot 2-2-3 and the outer diameter of the nut head of the bolt 3-3; the aperture of the second shaft hole 2-2-2 is larger than that of the nut mounting groove hole 2-2-3;

The first pressing block 3-1 comprises a pressing block body 3-1-1 and a pressing block cylinder shaft 3-1-2 fixedly arranged at the middle part of the inner side of the pressing block body 3-1 and extending along the axial direction; the pressing block body 3-1-1 is connected in the second shaft hole 2-2-2 in a sliding manner, and a limiting component which is matched with each other and enables the pressing block body 3-1-1 to only axially move relative to the second shaft hole 2-2 and not to rotate is arranged between the inner peripheral wall of the second shaft hole 2-2-2 and the outer peripheral wall of the pressing block body 3-1-1; the briquetting cylinder shaft 3-1-2 is coaxially and rotatably sleeved in the first shaft hole 1-2-5;

the guide nut 3-4 is arranged in the nut mounting groove hole 2-2-3, and the guide nut 3-4 can only axially move relative to the nut mounting groove hole 2-2-3 and cannot rotate; the screw rod of the bolt 3-3 sequentially passes through the screw rod inserting hole 2-2-9 and the internal threaded hole of the guide nut 3-4 from outside to inside and then is propped against the outer side end surface of the first pressing block 3-1, and the screw rod of the bolt 3-3 is in threaded connection with the internal threaded hole of the guide nut 3-4 and can prop against or loosen the first pressing block 3-1 in the rotating process relative to the internal threaded hole of the guide nut 3-4.

The limiting component in this embodiment includes at least one first through groove 3-1-4 extending along the axial direction on the outer peripheral wall of the pressing block body 3-1-1, and at least one protruding strip 2-2-1 matching with the first through groove 3-1-4 on the inner peripheral wall of the second shaft hole 2-2.

In this embodiment, the periphery of the briquetting cylinder shaft 3-1-2 is further sleeved with a soft rubber pad 3-1-5 located between the inner side end face of the briquetting body 3-1-1 and the outer side end face of the first shaft sleeve 1-2.

The electronic toy 1-1-1 is arranged on the first cover plate device 1, and the first cover plate device 1 comprises a first cover plate upper frame body 1-1-2 and a first cover plate lower frame body 1-1-3 which are clamped on the upper side and the lower side of the electronic toy 1-1.

Example 3

Unlike the above-described embodiment, this embodiment includes a first cover plate device 1 and a second cover plate device 2 rotatably connected to the first cover plate device 1,

the first cover plate device 1 comprises a first cover plate main body 1-1 and a first shaft sleeve 1-2 fixedly arranged in the middle of the edge of one side of the first cover plate main body 1-1 adjacent to the second cover plate device 2,

the second cover plate device 2 comprises a second cover plate main body 2-1 and two sections of second shaft sleeves 2-2 which are respectively and fixedly arranged at the edge of one side of the second cover plate main body 2-1 adjacent to the first cover plate device 1 and are respectively and coaxially arranged at the outer sides of the two axial ends of the first shaft sleeve 1-2,

the two axial ends of the first shaft sleeve 1-2 are respectively connected with the second shaft sleeve 2-2 at the adjacent end in a coaxial rotation way through a group of rotation limiting assemblies;

The two axial outer end parts of the first shaft sleeve 1-2 are respectively provided with a first shaft hole 1-2-5 extending along the axial direction, the two axial outer end faces of the first shaft sleeve 1-2 are respectively provided with an end face gear ring 1-2-6 distributed around the periphery of the first shaft hole 1-2-5,

each section of the second shaft sleeve 2-2 is provided with a second shaft hole extending along the axial direction, a fixed plate 2-2-4 vertical to the axial direction is fixedly arranged in the second shaft hole, the fixed plate 2-2-4 divides the second shaft hole into a first cavity 2-2-5 close to one end of the first shaft sleeve 1-2 and a second cavity 2-2-6 far away from one end of the first shaft sleeve 1-2, the fixed plate 2-2-4 is provided with more than one guide shaft hole 2-2-7 penetrating through the fixed plate 2-2-4 along the direction parallel to the axial line of the second shaft hole 2-2 and different from the axial line of the second shaft hole 2-2-2,

each group of rotation limiting assemblies comprises a second pressing block 4-1 and limiting columns 4-2, the second pressing block 4-1 comprises a second pressing block body 4-1-1, the middle part of the end face of the second pressing block body 4-1, which is close to the end face gear ring 1-2-6, is fixedly connected with a second pressing block shaft 4-1-3 which extends along the axial direction to the direction far away from the end face, the second pressing block body 4-1-1 is provided with a plurality of end face gear rings 2 4-1-2 which extend along the radial direction and are matched with the end face gear ring 1-2-6 at intervals around the periphery of the second pressing block shaft 4-1-3 on the end face, which is close to the end face gear ring 1-2-6, of the second pressing block body 4-1 is provided with more than one fixing bolt 4-1-4 which extends along the axial line direction parallel to the second pressing block shaft 4-1-3 and is in movable plug fit with the corresponding guide shaft hole 2-2-7 on the second shaft sleeve 2-2; the second pressing block body 4-1-1 is movably arranged in the first cavity 2-2-5, the fixing bolt 4-1-4 penetrates through the guide shaft hole 2-2-7 from the first cavity 2-2-5 to extend into the second cavity 2-2-6, and the second pressing block shaft 4-1-3 is rotatably sleeved in the first shaft hole 1-2-5; the limiting column 4-2 is inserted into the second cavity 2-2-6 in a tight fit mode, and when the limiting column 4-2 moves into the second cavity 2-2-6 in place, the limiting column 4-2 can inwards push the fixing bolt 4-1-4 to enable the end face gear ring two 4-1-2 of the second pressing block 4-1 to be pressed on the end face gear ring one 1-2-6 of the first shaft sleeve 1-2.

The second soft rubber pad 4-3 sleeved on the second pressing block shaft 4-1-3 is also arranged between the second pressing block body 4-1-1 and the end face of the first shaft sleeve 1-2.

Each group of rotation limiting assemblies further comprises a sleeve cover 4-4 arranged on the opening of the second chamber 2-2-6, an internal threaded hole is formed in the middle of the limiting column 4-2, and an external threaded rod extending into the internal threaded hole and connected with the internal threaded hole in a threaded fit mode is arranged at one end of the sleeve cover 4-4, facing the second chamber 2-2-6.

The number of the guide shaft holes 2-2-7 in the embodiment is three, and the guide shaft holes 2-2-7 are uniformly distributed at equal intervals along the circumferential direction around the axis of the second shaft hole 2-2.

The second cover device 2 in this embodiment is provided with a notch 5 for facilitating the flip.

In this embodiment, the distance between the end surface of the second pressing block shaft 4-1-3 far from the second pressing block body 4-1-1 and the end surface of the second pressing block body 4-1 far from the second pressing block shaft 4-1-3 is smaller than or equal to the distance between the outer end surface of the first shaft sleeve 1-2 near the second shaft sleeve 2-2 and the inner end surface of the first chamber 2-2-5 far from the first shaft sleeve 1-2.

Example 4

the two axial outermost end parts of the first shaft sleeve 1-2 are respectively provided with a first shaft hole 1-2-5 extending along the axial direction, the two axial outermost end faces of the first shaft sleeve 1-2 are respectively provided with an end face gear ring 1-2-6 distributed around the periphery of the first shaft holes 1-2-5, the first shaft sleeve 1-2 is internally provided with a first shaft sleeve cavity 1-2-8 which is positioned between the two first shaft holes 1-2-5 and has a pore diameter larger than that of the first shaft holes 1-2-5, and the outermost end parts of the first shaft sleeve cavities 1-2-8 are communicated with the adjacent first shaft holes 1-2-5;

a second shaft hole 2-2-2 extending along the axial direction is arranged in each section of the second shaft sleeve 2-2,

Each group of rotation limiting components comprises a rotating shaft 6-1, wherein the rotating shaft 6-1 comprises a middle rotating shaft sleeve 6-1-1 and a limiting cover 6-4 arranged at the outer end of the rotating shaft sleeve 6-1, the rotating shaft sleeve 6-1 is provided with more than one second limiting flange 6-1-2 protruding outwards along the radial direction at the outer edge of the inner end cylinder wall far away from the limiting cover 6-4, and when the number of the second limiting flanges 6-1-2 is more than two, the second limiting flanges 6-1-2 are distributed at intervals along the circumferential direction of the cylinder wall; the inner end cylinder wall of the rotating shaft sleeve 6-1-1 far away from the limit cover 6-4 is also provided with more than two second notches 6-1-3 which are distributed at intervals along the circumferential direction of the cylinder wall and extend from the end to the other end along the axial direction;

each group of rotation limiting assemblies further comprises a third pressing block 6-2 rotationally sleeved outside the rotating shaft sleeve 6-1-1 and a spring 6-3 sleeved outside the rotating shaft sleeve 6-1 and propped between the third pressing block 6-2 and the limiting cover 6-4, wherein an end face of the third pressing block 6-2, which is close to the first shaft hole 1-2-5, is provided with an end face gear ring three 6-2-1 matched with the end face gear ring 1-2-6;

the limiting cover 6-4 is fixed on the outer side of the outer end opening of the second shaft hole 2-2, the inner end wall of the rotating shaft sleeve 6-1-1 penetrates through the second shaft hole 2-2 and stretches into the first shaft sleeve cavity 1-2-8, the second limiting flange 6-1-2 is clamped on the connecting end face of the second shaft hole 2-2 and the first shaft sleeve cavity 1-2-8, and the inner end wall of the rotating shaft sleeve 6-1-1 is rotatably sleeved in the first shaft hole 1-2-5.

In this embodiment, more than 1 second through grooves 6-2-2 extending in parallel axial directions are provided on the outer peripheral wall of the third pressing block 6-2 at intervals in the circumferential direction, and more than one second protruding strip 2-2-9 matched with the second through grooves 6-2-2 is provided on the inner peripheral wall of the second shaft hole 2-2.

The gear rings of the first end face gear ring 1-2-6 and the third end face gear ring 6-2-1 in the embodiment comprise a plurality of racks which extend along the radial direction of the first shaft hole 1-2-5 or the third pressing block 6-2 and are sequentially and uniformly distributed at intervals along the circumferential direction of the first shaft hole 1-2-5 or the third pressing block 6-2, the section of each rack perpendicular to the extending direction is in an isosceles triangle, and the vertex angle of the isosceles triangle is larger than 60 degrees.

The foregoing detailed description will be given for the purpose of illustration only, and the invention is not limited to the above-described embodiments, but is to be construed as merely illustrative of the principles of the invention, as long as they are within the scope of the invention.

Claims

1. A folding electronic toy, characterized in that: the electronic toy comprises a first cover plate device (1) and a second cover plate device (2), wherein the first cover plate device (1) and the second cover plate device (2) are connected together through a rotary connecting device in a mutually rotary mode, one of the first cover plate device (1) and the second cover plate device (2) is provided with an electronic toy (1-1-1), the other one of the first cover plate device and the second cover plate device is provided with a power supply component, and two groups of conduction devices used for enabling the electronic toy (1-1-1) and the positive electrode and the negative electrode of the power supply component to be correspondingly conducted are arranged between the connecting parts of the first cover plate device (1) and the second cover plate device (2);

The first cover plate device (1) comprises a first cover plate frame body (1-1), the second cover plate device (2) comprises a second cover plate frame body (2-1), and two sections of first shaft sleeves (1-2) which are coaxially and sequentially arranged at intervals along a rotation center line are arranged on one side of the first cover plate frame body (1-1) adjacent to the second cover plate frame body (2-1); the second cover plate frame body (2-1) is provided with a section of third shaft sleeve (2-3) which is positioned between the two first shaft sleeves (1-2) and is coaxial with the first shaft sleeves (1-2) on one side of the second cover plate frame body adjacent to the first cover plate frame body (1-1);

a first middle shaft hole (1-2-4) coaxially penetrating through the inner surface and the outer surface of the side end wall is arranged on the side end wall of each first shaft sleeve (1-2) close to the third shaft sleeve (2-3), and a first clamping groove (1-2-3) is arranged in the inner cavity of each first shaft sleeve (1-2) at a position close to the first middle shaft hole (1-2-4); the axial two side end walls of the third shaft sleeve (2-3) are respectively provided with a second intermediate shaft hole (2-3-2) which coaxially penetrates through the inner surface and the outer surface of the corresponding side end wall, the inner cavity of the third shaft sleeve (2-3) is respectively provided with a second clamping groove (2-3-1) at a position close to each second intermediate shaft hole (2-3-2), and the first intermediate shaft hole (1-2-4) of each first shaft sleeve (1-2) and one second intermediate shaft hole (2-3-2) of the third shaft sleeve (2-3) adjacent to the first intermediate shaft hole are coaxially communicated with each other;

A group of conduction devices (3-2) are respectively arranged between the third shaft sleeve (2-3) and the adjacent part of each first shaft sleeve (1-2); each group of conduction devices (3-2) comprises two elastic conductive contact assemblies which are sequentially arranged along a rotation center line and are in contact with each other at one end, and each elastic conductive contact assembly comprises a conductive cylinder (3-2-2), a conductive first spring (3-2-1) and a conductive sheet (3-2-3) which are sequentially arranged from the contact end along the rotation center line to the other end; the outer circumferential wall of the conductive cylinder (3-2-2) of one elastic conductive contact assembly is rotationally sleeved in the first middle shaft hole (1-2-4) of one first shaft sleeve (1-2), the conductive sheet (3-2-3) is clamped in the first clamping groove (1-2-3) of the first shaft sleeve (1-2), the conductive cylinder (3-2-2) of the other elastic conductive contact assembly contacted with the elastic conductive contact assembly is rotationally sleeved in the second middle shaft hole (2-3-2) of the third shaft sleeve (2-3) adjacent to the first middle shaft hole (1-2-4) of the first shaft sleeve (1-2), and the conductive sheet (3-2-3) is clamped in the second clamping groove (2-3-1) of the corresponding adjacent part of the third shaft sleeve (2-3); the conductive first spring (3-2-1) of each elastic conductive contact assembly is in jacking connection between the conductive cylinder (3-2-2) and the conductive sheet (3-2-3) of the same group of elastic conductive contact assemblies, and the conductive cylinders (3-2-2) of the two elastic conductive contact assemblies which are in mutual contact are kept in a jacking contact state;

The conductive plates (3-2-3) of the two elastic conductive contact assemblies arranged in the third shaft sleeve (2-3) are correspondingly connected with the positive electrode and the negative electrode of the electronic toy (1-1-1) or the power supply assembly arranged on the second cover plate frame body (2-1) through conductive connecting pieces respectively, and the conductive plates (3-2-3) of the two elastic conductive contact assemblies arranged in the two first shaft sleeves (1-2) are correspondingly connected with the positive electrode and the negative electrode of the power supply assembly or the electronic toy (1-1-1) arranged on the first cover plate frame body (1-1) through conductive connecting pieces respectively;

the rotary connecting device comprises two sections of second sleeves (2-2) which are respectively and fixedly connected to the second cover plate frame body (2-1) and are respectively and coaxially arranged at the outer sides of the two sections of first sleeves (1-2) in the axial direction, and two groups of rotary connecting limiting assemblies which respectively enable each second sleeve (2-2) to be rotationally connected with the adjacent first sleeve (1-2) and can adjust and fix the relative rotation angle between the second sleeve (2-2) and the first sleeve (1-2);

each conductive sheet (3-2-3) is connected with a lug (3-2-4) which extends outwards and is used for being connected with a conductive connecting piece;

the outer circumferential wall of the conductive cylinder (3-2-2) is provided with a first limit flange (3-2-5) which is clamped in the first middle shaft hole (1-2-4) or the second middle shaft hole (2-3-2) and is close to the outer end face of one side of the conductive cylinder (3-2-1) and used for limiting the conductive cylinder (3-2) to be inserted into the first middle shaft hole (1-2-4) or the second middle shaft hole (2-3-2) at one end close to the conductive first spring (3-2-1).

2. A folding electronic toy according to claim 1, wherein: the groove plugging direction of the first clamping groove (1-2-3) and the second clamping groove (2-3-1) is perpendicular to the rotation center lines of the first cover plate device (1) and the second cover plate device (2), a first notch (7) which extends from the groove inserting opening to the middle of the groove and is used for placing the conductive first spring (3-2-1) is formed in the groove wall of one side of the conductive cylinder (3-2) on the first clamping groove (1-2-3) and the second clamping groove (2-3-1), and the caliber of the first notch (7) is larger than the outer diameter of the conductive first spring (3-2-1).

3. A folding electronic toy according to claim 1, wherein:

each group of rotation connection limiting components comprises a first pressing block (3-1), a guide nut (3-4) and a bolt (3-3);

the two axial outer end parts of the first shaft sleeve (1-2) are respectively provided with a first shaft hole (1-2-5) extending along the axial direction, and each section of second shaft sleeve (2-2) is internally provided with a second shaft hole (2-2-2), a nut mounting groove hole (2-2-3) and a screw rod inserting hole (2-2-9) which are coaxially communicated in sequence from one inner side to one outer side along the axial direction; the aperture of the screw insertion hole (2-2-9) is smaller than the aperture of the nut mounting slot hole (2-2-3) and the outer diameter of the nut head of the bolt (3-3); the aperture of the second shaft hole (2-2-2) is larger than that of the nut mounting groove hole (2-2-3);

The first pressing block (3-1) comprises a pressing block body (3-1-1) and a pressing block cylinder shaft (3-1-2) fixedly arranged at the middle part of the inner side of the pressing block body (3-1-1) and extending along the axial direction; the pressing block body (3-1-1) is connected in the second shaft hole (2-2-2) in a sliding manner, and a limiting component which is matched with each other and enables the pressing block body (3-1-1) to only axially move relative to the second shaft hole (2-2) and not to rotate is arranged between the inner peripheral wall of the second shaft hole (2-2-2) and the outer peripheral wall of the pressing block body (3-1-1); the briquetting cylinder shaft (3-1-2) is coaxially and rotatably sleeved in the first shaft hole (1-2-5);

the guide nut (3-4) is arranged in the nut mounting groove hole (2-2-3), and the guide nut (3-4) can only axially move relative to the nut mounting groove hole (2-2-3) and cannot rotate; the screw rod of the bolt (3-3) sequentially penetrates through the screw rod inserting hole (2-2-9) and the inner threaded hole of the guide nut (3-4) from outside to inside and then is propped against the outer side end face of the first pressing block (3-1), and the screw rod of the bolt (3-3) is in threaded connection with the inner threaded hole of the guide nut (3-4) and can prop against or loosen the first pressing block (3-1) in the rotating process of the inner threaded hole of the opposite guide nut (3-4).

4. A folding electronic toy according to claim 3, wherein: the limiting component comprises more than one first through groove (3-1-4) which is arranged on the outer peripheral wall of the pressing block body (3-1-1) and extends along the axial direction, and more than one convex strip (2-2-1) which is arranged on the inner peripheral wall of the second shaft hole (2-2-2) and is matched with the first through groove (3-1-4).

5. A folding electronic toy according to claim 3, wherein: the periphery of the briquetting cylinder shaft (3-1-2) is also sleeved with a soft rubber pad (3-1-5) positioned between the inner side end face of the briquetting body (3-1-1) and the outer side end face of the first shaft sleeve (1-2).

6. A folding electronic toy according to claim 3, wherein: the electronic toy (1-1-1) is arranged on the first cover plate device (1), and the first cover plate device (1) comprises a first cover plate upper frame body (1-1-2) and a first cover plate lower frame body (1-1-3) which are clamped on the upper side and the lower side of the electronic toy (1-1-1).

7. A folding electronic toy according to claim 1, wherein:

the axial two outer end parts of the first shaft sleeve (1-2) are respectively provided with a first shaft hole (1-2-5) extending along the axial direction, the axial two outer end surfaces of the first shaft sleeve (1-2) are provided with end surface gear rings I (1-2-6) distributed around the periphery of the first shaft hole (1-2-5),

Each section of the second shaft sleeve (2-2) is provided with a second shaft hole extending along the axial direction, a fixing plate (2-2-4) perpendicular to the axial direction is fixedly arranged in the second shaft hole, the fixing plate (2-2-4) divides the second shaft hole into a first cavity (2-2-5) close to one end of the first shaft sleeve (1-2) and a second cavity (2-2-6) far away from one end of the first shaft sleeve (1-2), the fixing plate (2-2-4) is provided with more than one guide shaft hole (2-2-7) which penetrates through the fixing plate (2-2-4) along the direction parallel to the axis of the second shaft hole (2-2) and is not coaxial with the axis of the second shaft hole (2-2-2),

each group of rotation connection limiting components comprises a second pressing block (4-1) and limiting columns (4-2), the second pressing block (4-1) comprises a second pressing block body (4-1-1), the second pressing block body (4-1-1) is fixedly connected with a second pressing block shaft (4-1-3) which extends along the axial direction to the direction far away from the end face on the middle part of the end face, which is close to the end face, of the first pressing block (1-2-6), of the second pressing block body, a plurality of end face gear rings (4-1-2) which extend along the radial direction and are matched with the first end face gear rings (1-2-6) are arranged at intervals around the periphery of the second pressing block shaft (4-1-3), the second pressing block body (4-1-1) is provided with more than one guide bolt (4-2) which extends along the axial direction parallel to the second pressing block shaft (4-1-3) and is matched with the corresponding guide bolt (4-2) of the second shaft sleeve (2-2) on the end face, which is far away from the first end face gear rings (1-2-6); the second briquetting body (4-1-1) is movably arranged in the first cavity (2-2-5), the fixing bolt (4-1-4) penetrates through the guide shaft hole (2-2-7) from the first cavity (2-2-5) to extend into the second cavity (2-2-6), and the second briquetting shaft (4-1-3) is rotatably sleeved in the first shaft hole (1-2-5); the limiting column (4-2) is inserted into the second cavity (2-2-6) in a tight fit mode, and when the limiting column (4-2) moves into the second cavity (2-2-6) in place, the limiting column (4-2) can inwards push the fixing bolt (4-1-4) to enable the end face gear ring II (4-1-2) of the second pressing block (4-1) to be pressed on the end face gear ring I (1-2-6) of the first shaft sleeve (1-2).

8. A folding electronic toy according to claim 7, wherein: and a second soft rubber pad (4-3) sleeved on the second pressing block shaft (4-1-3) is also arranged between the second pressing block body (4-1-1) and the end face of the first shaft sleeve (1-2).

9. A folding electronic toy according to claim 7, wherein: each group of rotation connection limiting components further comprises a sleeve cover (4-4) arranged on the opening of the second cavity (2-2-6), an internal threaded hole is formed in the middle of the limiting column (4-2), and an external threaded rod extending into the internal threaded hole and in threaded fit connection with the internal threaded hole is arranged at one end, facing the second cavity (2-2-6), of the sleeve cover (4-4).

10. A folding electronic toy according to claim 7, wherein: the number of the guide shaft holes (2-2-7) is three, and the guide shaft holes are uniformly distributed at equal intervals along the circumferential direction around the axis of the second shaft holes (2-2-2).

11. A folding electronic toy according to claim 7, wherein: the second cover plate device (2) is provided with a notch (5) which is convenient for the turnover cover.

12. A folding electronic toy according to claim 7, wherein: the distance between the end face of the second briquetting shaft (4-1-3) far away from the second briquetting body (4-1-1) and the end face of the second briquetting body (4-1-1) far away from the second briquetting shaft (4-1-3) is smaller than or equal to the distance between the outer end face of the first shaft sleeve (1-2) near the second shaft sleeve (2-2) and the inner end face of the first cavity (2-2-5) far away from the first shaft sleeve (1-2).

13. A folding electronic toy according to claim 1, wherein:

the two axial outermost end parts of the first shaft sleeve (1-2) are respectively provided with a first shaft hole (1-2-5) extending along the axial direction, the two axial outermost end surfaces of the first shaft sleeve (1-2) are provided with end surface gear rings I (1-2-6) distributed around the periphery of the first shaft holes (1-2-5), the first shaft sleeve (1-2) is internally provided with a first shaft sleeve cavity (1-2-8) which is positioned between the two first shaft holes (1-2-5) and has a pore diameter larger than that of the first shaft holes (1-2-5), and the outermost end parts of the first shaft sleeve cavities (1-2-8) are communicated with the adjacent first shaft holes (1-2-5);

a second shaft hole (2-2-2) extending along the axial direction is arranged in each section of the second shaft sleeve (2-2),

each group of rotation connection limiting assembly comprises a rotating shaft (6-1), the rotating shaft (6-1) comprises a middle rotating shaft sleeve (6-1-1) and a limiting cover (6-4) arranged at the outer end of the rotating shaft sleeve (6-1-1), more than one second limiting flange (6-1-2) protruding outwards along the radial direction is arranged on the outer edge of the inner end cylinder wall of the rotating shaft sleeve (6-1-1), far away from the limiting cover (6-4), and when the number of the second limiting flanges (6-1-2) is more than two, the second limiting flanges (6-1-2) are distributed at intervals along the circumferential direction of the cylinder wall; the inner end cylinder wall of the rotating shaft sleeve (6-1-1) far away from the limit cover (6-4) is also provided with more than two second notches (6-1-3) which are distributed at intervals along the circumferential direction of the cylinder wall and extend from the end to the other end along the axial direction;

Each group of rotary connection limiting components further comprises a third pressing block (6-2) rotationally sleeved outside the rotary shaft sleeve (6-1-1) and a spring (6-3) sleeved outside the rotary shaft sleeve (6-1) and propped between the third pressing block (6-2) and the limiting cover (6-4), wherein the end face of the third pressing block (6-2) close to the first shaft hole (1-2-5) is provided with an end face gear ring III (6-2-1) matched with the end face gear ring I (1-2-6);

the limiting cover (6-4) is fixed on the outer side of the outer end opening of the second shaft hole (2-2-2), the inner end wall of the rotating shaft sleeve (6-1-1) penetrates through the second shaft hole (2-2) and stretches into the first shaft sleeve cavity (1-2-8), the second limiting flange (6-1-2) is clamped on the connecting end face of the second shaft hole (2-2-2) and the first shaft sleeve cavity (1-2-8), and the inner end wall of the rotating shaft sleeve (6-1-1) is rotatably sleeved in the first shaft hole (1-2-5).

14. A folding electronic toy according to claim 13, wherein: the outer peripheral wall of the third pressing block (6-2) is provided with more than 1 second through grooves (6-2-2) extending along the parallel axial direction at intervals along the circumferential direction, and the inner peripheral wall of the second shaft hole (2-2-2) is provided with more than one second raised strips (2-2-10) matched with the second through grooves (6-2-2).

15. A folding electronic toy according to claim 14, wherein: the gear rings of the first end face gear ring (1-2-6) and the third end face gear ring (6-2-1) respectively comprise a plurality of racks which extend along the radial direction of the first shaft hole (1-2-5) or the third pressing block (6-2) and are sequentially and uniformly distributed at intervals along the circumferential direction of the first shaft hole (1-2-5) or the third pressing block (6-2), the section of each rack perpendicular to the extending direction is an isosceles triangle, and the vertex angle of the isosceles triangle is larger than 60 degrees.

16. A folding electronic toy according to claim 1, wherein: the electronic toy (1-1-1) is a liquid crystal handwriting board.

17. A folding electronic toy according to claim 16, wherein: the power supply assembly comprises a circuit control board (2-1-3) and a battery assembly (2-1-6) which is connected with the circuit control board (2-1-3) for supplying power, wherein a voice broadcasting device (2-1-4), a switch key (2-1-8) and a plurality of sound control keys (2-1-5) are further arranged on the first cover plate frame body (1-1) or the second cover plate frame body (2-1) provided with the power supply assembly;

the voice control key (2-1-5) is connected with the circuit control board (2-1-3) and used for transmitting input information of the voice control key (2-1-5) to the circuit control board (2-1-3), and the circuit control board (2-1-3) is connected with the voice broadcasting device (2-1-4) and used for triggering the voice broadcasting device (1-3) to broadcast corresponding voice after receiving the input information of the voice control key (2-1-5); the switch key (2-1-8) is connected between the circuit control board (2-1-3) and the battery component (2-1-6) and used for controlling the on-off of the circuit;

The first cover plate frame body (1-1) or the second cover plate frame body (2-1) is provided with a plurality of first through holes (2-1-7) for exposing the sound control keys (2-1-5) so as to be convenient to press and second through holes (2-1-9) for exposing the switch keys (2-1-8).

18. A folding electronic toy according to claim 16, wherein: the electric conduction plate (3-2-3) is connected with the circuit control board (2-1-3) or the battery component (2-1-6) through the electric conduction connecting piece, a first cover plate frame body (1-1) or a second cover plate frame body (2-1) provided with the power component is further provided with a control button (2-1-10) for controlling the on-off of the electric conduction plate (3-2-3) and the circuit control board (2-1-3) or the battery component (2-1-6) so as to control the on-off operation of the folding electronic toy, and the first cover plate frame body (1-1) or the second cover plate frame body (2-1) is provided with a third through hole (2-1-11) for exposing the control button (2-1-10) so as to be convenient to press.

19. A folding electronic toy according to claim 16, wherein: the first cover plate frame body (1-1) or the second cover plate frame body (2-1) is provided with a pen groove (2-1-12) for placing a pen for a liquid crystal handwriting board.

20. A folding electronic toy according to claim 16, wherein: the first cover plate frame body (1-1) consists of a first cover plate upper frame body (1-1-2) and a first cover plate lower frame body (1-1-3) which are arranged up and down, and the liquid crystal handwriting board is clamped between the first cover plate upper frame body (1-1-2) and the first cover plate lower frame body (1-1-3); the second cover plate frame body (2-1) is composed of a second cover plate upper frame body (2-1-1) and a second cover plate lower frame body (2-1-2), wherein the second cover plate upper frame body (2-1-1) and the second cover plate lower frame body (2-1-2) are arranged up and down, and a cavity for accommodating and installing the power supply component is formed between the second cover plate upper frame body (2-1-1) and the second cover plate lower frame body (2-1-2).