CN208740279U - Desk and chair - Google Patents

Abstract

The utility model belongs to teaching equipment technical field, more particularly to a kind of desk and chair, including desktop, support frame, electronic writing board, the first telescopic rod, the second telescopic rod and master control borad, master control borad is set in desktop, electronic writing board is embedded at the top of desktop and connect with master control borad, and desktop is equipped with server interface, power interface and the power key connecting with master control borad；Support frame includes front-end and back-end, and the first telescopic rod is set to the front end of support frame, and the first telescopic rod and desktop are hinged, and the second telescopic rod is set to the rear end of support frame, and the second telescopic rod and desktop are hinged；Seat includes seat plate, pedestal, third telescopic rod and the 4th telescopic rod, pedestal includes front-end and back-end, third telescopic rod is articulated with the bottom of base rear end, 4th telescopic rod is articulated with the bottom of pan frontward end, so that the adjustable rotation of seat and electronic desk, to which student can keep good posture to learn, use is more comfortable, can effectively reduce student and the case where inferior health occurs.

Description

Desk and chair

Technical field

The utility model belongs to teaching equipment technical field more particularly to a kind of desk and chair.

Background technique

Present classroom learning is usually that student is sitting in front of desk and is remembered using the textbook of papery and being done on textbook using pen Record is learnt, and a drawer is generally arranged in desk all under desktop, and then student puts book in drawer, and desktop is used to write, It has a single function, and can also generate the huge wasting of resources using papery textbook, with the development of science and technology, and people's protection Environment, the meaning to economize on resources constantly enhance, and present classroom learning is also increasingly prone to the mode of e learning, that is, change with Before be sitting in front of desk using the textbook of papery and using pen in the case where being learnt that keep a record on textbook, use electronic desk generation For papery textbook and old-fashioned desk, but its desktop of the electronic desk arrived now is usually fixed tiling, and student is using When need to bow or on all fours, be easy to influence the figure development of student so on all fours, it is low too under also will affect the eyesight of student；With And the chair to match now with desk also has a single function, and generally fixed structure, leads to its inconvenient to use, comfort not It is good, easily divert attention when student sits on, and then influence the effect that student attends class.

Utility model content

The purpose of this utility model is to provide a kind of desk and chairs, it is intended to solve the study on classroom in the prior art The bad technical problem of tables and chairs comfort.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: desk and chair, including desktop, support Frame, electronic writing board, the first telescopic rod, the second telescopic rod and master control borad, the master control borad are set in the desktop, the electronics Clipboard is embedded at the top of the desktop and is electrically connected with the master control borad, and the side of the desktop is equipped with and the master control Server interface, power interface and the power key that plate is electrically connected；Support frame as described above includes front-end and back-end, and described first is flexible Bar is fixed on the front end of support frame as described above, and the bottom of the table is articulated at the top of first telescopic rod, and described second stretches Contracting bar is fixed on the rear end of support frame as described above, and is articulated with the bottom of the table at the top of second telescopic rod；The seat Including seat plate, pedestal, third telescopic rod and the 4th telescopic rod, the pedestal includes front-end and back-end, the third telescopic rod It is articulated with the bottom of the base rear end, the 4th telescopic rod is articulated with the bottom of the pan frontward end.

Preferably, the seat further includes chair back plate, and the chair back plate is set to the rear side of the seat plate, the chair back Plate is equipped with second distance sensor, and the second distance sensor and the master control borad are electrically connected.

Preferably, the top of the third telescopic rod is equipped with second bearing, the connection of the seat plate and the chair back plate Place is equipped with the second shaft, and second shaft is arranged in the second bearing.

Preferably, the junction of the seat plate and the chair back plate opens up jagged, and one end of second shaft connects It is connected on the bottom wall of the notch and the other end faces away from the direction extension of the notch bottom wall.

Preferably, the top of the 4th telescopic rod is equipped with the second gyrosphere, the bottom of the seat plate and the described 4th The side of telescopic rod connection offers the second turned cavities, and second gyrosphere is connected in second turned cavities.

Preferably, the top of first telescopic rod is equipped with first bearing, and the bottom of the desktop is flexible with described first The side of bar connection is equipped with multiple swivel beckets, and each swivel becket is concatenated with the first bearing by first rotating shaft.

Preferably, the top of second telescopic rod is equipped with the first gyrosphere, and the bottom of the desktop is stretched with described second The side of contracting bar connection offers the first turned cavities, and first gyrosphere is connected in first turned cavities.

Preferably, the electronic desk further includes touch display screen, and the touch display screen is embedded at the top of the desktop It portion and is electrically connected with the master control borad, and the touch display screen is located at the side of the electronic writing board.

Preferably, first distance sensor, the first distance sensor and the master control borad are additionally provided on the desktop It is electrically connected.

Preferably, camera is additionally provided on the desktop, the camera and the master control borad are electrically connected.

The utility model has the beneficial effects that the desk and chair of the utility model, by the way that the bottom of seat plate rear end is hinged At the top of third telescopic rod, the bottom of seat front edge of board is connect with the top of the 4th telescopic rod, it in this way can be by adjusting the The height of relative telescopic between three telescopic rods and the 4th telescopic rod, so that seat plate can be in incline relative to the rotation of third telescopic rod Ramp-like state, so that student can need to adjust the inclined angle of seat plate according to itself；And by by desktop front end Bottom is hinged on the top of the first telescopic rod, and the bottom of desktop rear end is connect with the top of the second telescopic rod, can be passed through in this way Adjust the height of relative telescopic between the first telescopic rod and the second telescopic rod so that desktop can relative to the first telescopic rod rotate and It is inclined, so that student can need to adjust the inclined angle of desktop according to itself；So in rotatable electronics One rotatable seat of desk front complement can make seat and electronic desk rotate synchronously, so that student can be very The posture of its body is kept to be learnt well, use is more comfortable, and then not only improves the efficiency and enthusiasm of student's study, Also it effectively reduces student and the case where inferior health occurs, market application prospect is splendid.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of desk and chair provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram of seat provided by the embodiment of the utility model；

Fig. 3 is the side structure schematic view of seat provided by the embodiment of the utility model；

Fig. 4 is the configuration schematic diagram of seat provided by the embodiment of the utility model；

Fig. 5 is the structural schematic diagram of the seat plate of seat provided by the embodiment of the utility model；

Fig. 6 is the structural schematic diagram one of electronic desk provided by the embodiment of the utility model；

Fig. 7 is the structural schematic diagram two of electronic desk provided by the embodiment of the utility model；

Fig. 8 is the side structure schematic view of electronic desk provided by the embodiment of the utility model；

Fig. 9 is the structural schematic diagram of the desktop of electronic desk provided by the embodiment of the utility model.

Wherein, each appended drawing reference in figure:

10-electronic desk 11-desktop, 12-electronic writing boards

13-the first telescopic rod 15-touch display screen of the 14-the second telescopic rod

16-first rotating shaft 17-runner assembly, 18-connecting plates

20-seat 21-seat plate 22-third telescopic rods

23-the four the 25-the second shaft of 24-chair back plate of telescopic rod

26-notch 27-pedestal, 30-support frames

111-server interface 112-power interface, 113-power keys

114-swivel becket the 115-the first turned cavities 116-first distance sensors

117-camera 118-article putting groove, 131-first bearings

141-the first gyrosphere 171-universal wheel, 172-lock piece

211-the second the 231-the second gyrosphere of 221-second bearing of turned cavities

241-second distance sensors.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining the description of attached drawing 1~9 is exemplary, it is intended to for explaining the utility model, and should not be understood as practical to this Novel limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

As shown in figure 1-9, the utility model embodiment provides a kind of desk and chair, including electronic desk 10 and seat 20, the electronic desk 10 includes desktop 11, support frame 30, electronic writing board 12, the first telescopic rod 13,14 and of the second telescopic rod Master control borad, the master control borad be set to the desktop 11 in, the electronic writing board 12 be embedded at the top of the desktop 11 and with The master control borad is electrically connected, and the side of the desktop 11 is equipped with the server interface 111 being electrically connected with the master control borad, electricity Source interface 112 and power key 113；Support frame as described above 30 includes front-end and back-end, and the bottom of first telescopic rod 13 is fixed on The front end of support frame as described above 30, and the top of first telescopic rod 13 is articulated with 10 bottom of desktop, described second is flexible The rear end of support frame as described above 30 is fixed in the bottom of bar 14, and the top of second telescopic rod 14 is articulated with 10 bottom of desktop Portion；The seat 20 includes seat plate 21, pedestal 27, third telescopic rod 22 and the 4th telescopic rod 23, before the pedestal 27 includes End and rear end, the third telescopic rod 22 are articulated with the bottom of 27 rear end of pedestal, and the 4th telescopic rod 23 is articulated with institute State the bottom of 27 front end of pedestal.

Specifically, the desk and chair of the utility model embodiment, by the way that the bottom of 21 rear end of seat plate is hinged on third The bottom of 21 front end of seat plate is connect by the top of telescopic rod 22 with the top of the 4th telescopic rod 23, in this way can be by adjusting the The height of relative telescopic between three telescopic rods 22 and the 4th telescopic rod 23, so that seat plate 21 can be 22 turns relative to third telescopic rod It is dynamic and inclined, so that student can need to adjust the inclined angle of seat plate 21 according to itself；And pass through by The bottom of 11 front end of desktop is hinged on the top of the first telescopic rod 13, by the top of the bottom of 11 rear end of desktop and the second telescopic rod 14 Portion's connection, in this way can be by the height of relative telescopic between the first telescopic rod 13 of adjusting and the second telescopic rod 14, so that desktop 11 Can be inclined relative to the rotation of the first telescopic rod 13, so that student can incline according to the desktop 11 that needs to adjust of itself Oblique angle；So in rotatable 10 front complement of electronic desk one rotatable seat 20, seat 20 and electricity can be made Sub- desk 10 rotates synchronously, so that student can keep well the posture of its body to learn, use is more comfortable, into And the efficiency and enthusiasm of student's study are not only improved, also effectively reducing student there is the case where inferior health, and market is answered It is splendid with prospect.

Further, by the way that electronic writing board 12 is applied to classroom learning, i.e., by being opened up in the upper surface of desktop 11 One empty slot, so that electronic writing board 12 is installed in empty slot；After server interface 111 is connect by electric wire with server, religion It grinds personnel the content of courses is projected on projection cloth on dais, electronic writing board 12 learns and does before student is sitting in desk Good notes, then upload to the personal account in cloud by server, e learning are realized, so that student can be whenever and wherever possible The learning account for logging in oneself carries out the review that new study or specific aim carry out weak knowledge point, not only easy to use, but also Also it realizes with no paper study, economizes on resources.

Further, student is sitting on the seat 20, and there are two third telescopic rod 22 is set, and two third telescopic rods 22 divide It is not set to two angles end of the bottom of 21 rear end of seat plate (far from the student foot side)；Likewise, the 4th telescopic rod 23 is set There are two, and two the 4th telescopic rods 23 are respectively arranged at two of the bottom of 21 front end of seat plate (close to the student foot side) Angle end, so that the seat 20 is whole steady, and each section uniform force.

Further, before student is sitting in the electronic desk 10, there are two the first telescopic rod 13 is set, and two the first telescopic rods 13 are respectively arranged at two angle end of the desktop 11 close to the bottom of the student side；Likewise, there are two the second telescopic rod 14 sets, and Two the second telescopic rods 14 are respectively arranged at two angles end of bottom of the desktop 11 far from the student side, so that electronic desk 10 is whole steady, and each section uniform force.

In the present embodiment, as shown in Figures 1 to 3, the seat 20 further includes chair back plate 24, and the chair back plate 24 is set to institute The rear side of seat plate 21 is stated, the chair back plate is equipped with second distance sensor 241, the second distance sensor 241 and institute State master control borad electric connection.Specifically, chair back plate 24 is arranged by the rear side in seat plate 21, so that student is tired out in study When, it can lean at any time, and seat plate 21 and chair back plate 24 are integrally formed, chair back plate 24 is rotated synchronously with seat plate 21, thus So that student is more comfortable when in use, further, by the way that second distance sensor 241 is arranged on chair back plate 24, so that learning When deserting, body is that end is sat on the seat, and second distance sensor 241 receives information at this time, then passes through master for life The control of plate is controlled, the first telescopic rod 13 and the opposite height of the second telescopic rod 14 are adjusted, so that chair back plate 24 is with 21 court of seat plate It rotates synchronously to the back-end, student and then swings back at this time, so that the body of student be allowed to keep the posture sat up straight vertically.

In the present embodiment, as shown in figs. 2 to 4, the top of the third telescopic rod 22 is equipped with second bearing 221, the chair The junction of panel 21 and the chair back plate 24 is equipped with the second shaft 25, and second shaft 25 is arranged in the second bearing In 221.Specifically, by being respectively provided with second bearing 221 at the top of two third telescopic rods 22, and make two second bearings 221 center line is overlapped, and the second shaft 25, the setting of the second shaft 25 then is arranged in the junction of seat plate 21 and chair back plate 24 There are two and be symmetrically disposed on seat plate 21 and chair back plate 24 junction two sides, the diameter of the second shaft 25 and two the The diameter of two bearings 221 is adapted, so that two the second shafts 25 can be cut with scissors correspondingly with two second bearings 221 It connects, and then realizes the hinged of seat plate 21 and two third telescopic rods 22.

In the present embodiment, as shown in figs. 2 to 4, the junction of the seat plate 21 and the chair back plate 24 opens up jagged 26, one end of second shaft 25 is connected on the bottom wall of the notch 26 and the other end faces away from 26 bottom wall of notch Direction extend.Specifically, by opening up notch 26, and two in the two sides opposite with the junction of chair back plate 24 of seat plate 21 Notch 26 is symmetrical arranged, so that two the second shafts 25 can be symmetrically separately positioned in a notch 26, in order to chair Panel 21 and two third telescopic rods 22 are hinged, and before can guaranteeing two third telescopic rods 22 and two the 4th telescopic rods 23 After correspond to, keep on the same line so that 20 structure of seat is more compact and beautiful.

In the present embodiment, as shown in figure 5, the top of the 4th telescopic rod 23 is equipped with the second gyrosphere 231, the seat The side that the bottom of plate 21 is connect with the 4th telescopic rod 23 offers the second turned cavities 211, and second gyrosphere 231 connects It is connected in second turned cavities 211.Specifically, to be easy to rise close to the side in student corner convenient for seat plate 21, thus So that the top of the 4th telescopic rod 23 and seat during seat plate 21 is tilted towards the back of student, and seat plate 21 rotates It can also relatively rotate between plate 21, therefore, be equipped with the second gyrosphere 231 at the top of the 4th telescopic rod 23, while at this The bottom of side plate 11 accordingly opens up the second turned cavities 211, so that the second turned cavities 211 can be relative to the second gyrosphere 231 It rotates to no dead angle, to eliminate the dead angle connected between seat plate 21 and the 4th telescopic rod 23, is easy to tilt, it will not be by card Extremely.

Further, as shown in figs. 2 to 4, the seat 20 further includes pedestal 27, the lower part of the third telescopic rod 22 and The lower part of 4th telescopic rod 23 is all connected on the pedestal 27.It specifically, is the structural strength for promoting the seat 20, with And when seat plate 21 is tilted together with chair back plate 24 towards student back, entire seat 20 is not toppled over, by seat A heavier pedestal 27, to guarantee how no matter seat plate 21 and chair back plate 24 tilt, the seat 20 is arranged in the lower part of plate 21 Center of gravity remain on pedestal 27, reach safety, comfortable using effect.

In the present embodiment, as shown in fig. 6, the top of first telescopic rod 13 is equipped with first bearing 131, the desktop 11 The side that is connect with first telescopic rod 13 of bottom be equipped with multiple swivel beckets 114, each swivel becket 114 and described first Bearing 131 is concatenated by first rotating shaft 16.Specifically, two the first telescopic rods 13, by the top of two the first telescopic rods 13 Portion is respectively provided with first bearing 131, and the center line of two first bearings 131 is overlapped, then in the bottom of 11 side of desktop Multiple swivel beckets 114 are abreast set, so that the center line of each swivel becket 114 is overlapped, the diameter of first rotating shaft 16 and two first The diameter of bearing 131 and each swivel becket 114 is adapted, so that first rotating shaft 16 can be articulated with two first bearings 131 and each turn In rotating ring 114, and then realize the hinged of desktop 11 and the first telescopic rod 13.

In the present embodiment, as shown in Fig. 8~9, the top of second telescopic rod 14 is equipped with the first gyrosphere 141, described The side that the bottom of desktop 11 is connect with second telescopic rod 14 offers the first turned cavities 115, first gyrosphere 141 It is connected in first turned cavities 115.Specifically, to be easy to rise far from the side of student convenient for desktop 11, so that The face of desktop 11 towards student tilt, and can also send out between the top and desktop 11 of second telescopic rod 14 during desktop 11 It is raw to relatively rotate, therefore, it is equipped with the first gyrosphere 141 at the top of the second telescopic rod 14, while in the bottom of the side plate 11 The first turned cavities 115 are accordingly opened up, so that the first turned cavities 115 can without dead angle be rotated relative to the first gyrosphere 141, from And the dead angle connected between desktop 11 and the second telescopic rod 14 is eliminated, it is easy to tilt, will not be stuck.

It further, as shown in figs. 6-7, is the structural strength for promoting the electronic desk 10, in the separate student of desktop 11 Side and student or so opposite two sides connecting plate 18 is set so that connecting plate 18 is connected between two second telescopic rods 14 Lower part and under being connected between the first telescopic rod 13 and the second telescopic rod 14 adjacent on the opposite two sides of desktop 11 or so Portion, and then improve the service life of the electronic desk 10 of the utility model embodiment.

In the present embodiment, as shown in fig. 7, the electronic desk 10 further includes touch display screen 15, the touch display screen 15 are embedded at the top of the desktop 11 and are electrically connected with the master control borad, and the touch display screen 15 is located at the electronics The side of clipboard 12.Specifically, by opening up an empty slot in the upper surface of desktop 11, so that touch display screen 15 is installed on In empty slot, by the way that a touch display screen 15 is arranged, it is effectively syncopated as the window of learning and exchange, student Ke Bian passes through electricity Sub- clipboard 12 learns, and side is exchanged by 15 teaching staff of touch display screen, realizes accessible study, has greatly improved The efficiency of habit.

In the present embodiment, as shown in fig. 7, first distance sensor 116 is additionally provided on the desktop 11, the first distance Sensor 116 and the master control borad are electrically connected.Specifically, when student is in learning state, first distance sensor 116 is used In the distance between the head and electronic writing board 12 of experiencing student in real time, when between student head and electronic writing board 12 away from From it is too close when, first distance sensor 116 issue prompt information, remind student should moderately with electronic writing board 12 keep away from From to protect eyesight；Or student, when lying prone on the table because of sleep, first distance sensor 116 issues prompt in a manner of vibration Information reminds student to need lift, keeps learning state.

In the present embodiment, as shown in fig. 7, be additionally provided with camera 117 on the desktop 11, the camera 117 with it is described Master control borad is electrically connected.Specifically, when student have a question needs exchanged with teaching staff when, can by camera 117 realize with Teaching staff exchanges in real time.

Further, first telescopic rod 13, second telescopic rod 14, the third telescopic rod 22 and the described 4th Telescopic rod 23 is manual telescopic bar or electric telescopic rod.Specifically, the first telescopic rod 13, second is manually or electrically controlled The contraction of telescopic rod 14, third telescopic rod 22 and the 4th telescopic rod 23, it is not only easy to use, but also can easily be accommodated and control.

Further, as shown in fig. 7, being also provided at least one article putting groove 118 on the desktop 11.Specifically, pass through Article putting groove 118 is opened up in the side of desktop 11, in order to which student is easy to place all kinds of stationery during study.

Further, the electronic desk 10 further includes stylus, and the stylus can be connected in the article putting groove 118 It is interior.Specifically, stylus may make student smoothly to write on electronic writing board 12, and by the way that stylus to be clamped It is not easy to fall in stylus can be effectively prevent to be placed on when not in use on desktop 11 in article putting groove 118.

Further, as shown in figs. 6-7, the lower end of first telescopic rod 13 and second telescopic rod 14 is equipped with Runner assembly 17, each runner assembly 17 include universal wheel 171 and lock piece 172, and the universal wheel 171 is set to described The bottom of first telescopic rod 13 and second telescopic rod 14, the lock piece 172 be connected to the outside of the universal wheel 171 with The universal wheel 171 is paid for locking.Specifically, by the way that universal wheel 171, while universal wheel 171 is arranged in the lower end of each foot support It can be controlled by lock piece 172, lock piece 172 is equipped with brake block, i.e., when lock piece 172 is opened, brake block and universal wheel There are gaps between 171, and universal wheel 171 is free to rotate at this time, and when lock piece 172 is closed, brake block is supported with universal wheel 171 Connect, universal wheel 171 can not rotate, thus when needing mobile electron desk 10, lock piece 172 need to only be opened, when need by When electronic desk 10 is fixed on a certain place, it is only necessary to which lock piece 172 is closed, and easy to use, students experience is good.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of desk and chair, including electronic desk and seat, it is characterised in that: the electronic desk include desktop, support frame, Electronic writing board, the first telescopic rod, the second telescopic rod and master control borad, the master control borad are set in the desktop, the e-book It writes plate to be embedded at the top of the desktop and be electrically connected with the master control borad, the side of the desktop is equipped with and the master control borad Server interface, power interface and the power key of electric connection；Support frame as described above includes front-end and back-end, first telescopic rod Bottom be fixed on the front end of support frame as described above, and the bottom of the table is articulated at the top of first telescopic rod, described The rear end of support frame as described above is fixed in the bottom of two telescopic rods, and the bottom of the desktop is articulated at the top of second telescopic rod Portion；The seat includes seat plate, pedestal, third telescopic rod and the 4th telescopic rod, and the pedestal includes front-end and back-end, described Third telescopic rod is articulated with the bottom of the base rear end, and the 4th telescopic rod is articulated with the bottom of the pan frontward end.

2. desk and chair according to claim 1, it is characterised in that: the seat further includes chair back plate, the chair back plate It is set to the rear side of the seat plate, the chair back plate is equipped with second distance sensor, the second distance sensor and institute State master control borad electric connection.

3. desk and chair according to claim 2, it is characterised in that: the top of the third telescopic rod is equipped with the second axis It holds, the junction of the seat plate and the chair back plate is equipped with the second shaft, and second shaft is arranged in the second bearing It is interior.

4. desk and chair according to claim 3, it is characterised in that: open the junction of the seat plate and the chair back plate Equipped with notch, one end of second shaft is connected on the bottom wall of the notch and the other end faces away from the notch bottom wall Direction extend.

5. desk and chair according to claim 1, it is characterised in that: the top of the 4th telescopic rod is equipped with the second revolution Ball, the side that the bottom of the seat plate is connect with the 4th telescopic rod offer the second turned cavities, second gyrosphere It is connected in second turned cavities.

6. described in any item desk and chairs according to claim 1~5, it is characterised in that: set at the top of first telescopic rod There is first bearing, the side that the bottom of the desktop is connect with first telescopic rod is equipped with multiple swivel beckets, each rotation Ring is concatenated with the first bearing by first rotating shaft.

7. described in any item desk and chairs according to claim 1~5, it is characterised in that: set at the top of second telescopic rod There is the first gyrosphere, the side that the bottom of the desktop is connect with second telescopic rod offers the first turned cavities, and described Single-revolution ball is connected in first turned cavities.

8. described in any item desk and chairs according to claim 1~5, it is characterised in that: the electronic desk further includes touching Display screen, the touch display screen is embedded at the top of the desktop and is electrically connected with the master control borad, and described touch shows Display screen is located at the side of the electronic writing board.

9. described in any item desk and chairs according to claim 1~5, it is characterised in that: be additionally provided on the desktop first away from From sensor, the first distance sensor and the master control borad are electrically connected.

10. described in any item desk and chairs according to claim 1~5, it is characterised in that: be additionally provided with camera shooting on the desktop Head, the camera and the master control borad are electrically connected.