CN109043886B

CN109043886B - Intelligent learning table

Info

Publication number: CN109043886B
Application number: CN201811208173.7A
Authority: CN
Inventors: 聂祯妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2023-09-22
Anticipated expiration: 2038-10-17
Also published as: CN109043886A

Abstract

The invention discloses a book pressing assembly and an intelligent learning table thereof, wherein the book pressing assembly comprises a book pressing power block, wherein the book pressing power block penetrates through a baffle plate through groove and is assembled and fixed with a book pressing shell; a book pressing spring is arranged between the book pressing plate and the book pressing shell; the book pressing shell and the book pressing plate are respectively provided with a first induction block and a first matching induction block on the end surfaces close to each other, the first induction blocks and the first matching induction blocks are respectively communicated with a first induction circuit, the first induction circuit comprises a battery, a battery negative electrode is communicated with the first induction block and conductive, a battery positive electrode is communicated with a resistance positive electrode and conductive, a motor negative electrode is communicated with a current sensor positive electrode and conductive, a current sensor negative electrode is communicated with the first induction block and conductive, and the current sensor is communicated with the PLC.

Description

Intelligent learning table

Technical Field

The invention relates to furniture, in particular to a book pressing assembly and an intelligent learning table thereof.

Background

Learning tables are already very mature furniture at present and almost every family needs to do so. The prior study desk mainly comprises a desk plate, and a plurality of grids are fixed on the desk plate for placing books. When in actual use, books need to be vertically and obliquely discharged, and if the books are not tightly attached to the two inner sides of the grids, an additional iron bookend is needed to be tightly attached to the books, so that the books are prevented from loosening. When in actual use, the books are required to be frequently taken and placed for study due to a plurality of subjects, so that the positions of the iron book ends and the clamping force on the books are required to be frequently adjusted, and the iron book ends can be pushed to move even directly to be overturned when the pressure on the iron book ends is too high due to the inclined placement of the books, and finally, most of the books collapse, so that the books are not attractive, and the effort of a user is required to be wasted for arrangement.

Particularly, after taking out the middle books, the iron book stand cannot be directly pushed to compress the books, and at the moment, one book is needed to be rearranged, so that the books are very troublesome.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention is to provide a book pressing assembly and an intelligent learning table thereof, which can automatically arrange and press books, so that the books are placed more normally and do not spend a great deal of effort on arranging the books.

In order to achieve the above purpose, the invention provides a book pressing assembly, which comprises a book pressing power block, wherein the book pressing power block penetrates through a through groove of a partition plate and is assembled and fixed with a book pressing shell, a power screw hole is formed in the book pressing power block, a book pressing plate is arranged on one side of the book pressing shell, which faces a fourth vertical plate, the book pressing plate is assembled and fixed with one end of a book pressing shaft, the other end of the book pressing shaft is arranged in the book pressing shell and assembled with a book pressing nut through screw threads, and therefore the maximum distance of movement of the book pressing shaft to the book pressing plate is limited; a book pressing spring is arranged between the book pressing plate and the book pressing shell;

the book pressing shell and the book pressing plate are close to each other, the end faces of the book pressing shell and the book pressing plate are respectively provided with a first induction block and a first matching induction block, the first induction blocks and the first matching induction blocks are respectively communicated with a first induction circuit, and the first induction circuit comprises a battery, a battery cathode is communicated with the first induction block and conductive, a battery anode is communicated with a resistor anode and conductive, a motor cathode is communicated with a current sensor anode and conductive, a current sensor cathode is communicated with the first induction block and conductive, and the current sensor is communicated with the PLC.

Preferably, after the first sensing block and the first matching sensing block are in contact conduction, the book pressing assembly rolls back by 4-6 cm.

Preferably, the book pressing plate is provided with a plug hole, the plug hole is assembled with a plug rod in a plug manner, the plug rod is fixed on a convex plate, the convex plate is provided with a pressure surface and a connecting inclined surface, and the pressure surface protrudes out of the outer surface of the book pressing plate.

Preferably, an adjusting cylinder is fixed on the fourth vertical plate, a fixed disc is fixed in the adjusting cylinder, the fixed disc and an induction shaft can be axially and slidably assembled, one end of the induction shaft passes through the fourth vertical plate and is fixedly assembled with the induction plate, an induction limit nut is arranged on the part of the induction shaft, which is arranged in the adjusting cylinder, and an induction spring is arranged between the induction limit nut and the fixed disc and is used for generating force for enabling the induction shaft to move leftwards;

the induction limiting nut is assembled with the induction shaft through screw threads in a screwing way, and is used for limiting the maximum displacement of the induction shaft when the induction shaft moves rightwards;

the induction plate and the fourth vertical plate are close to each other and are provided with a second induction block and a second matching induction block respectively, the second induction block and the second matching induction block are communicated with a second induction circuit respectively, and the second induction circuit comprises a battery, a battery negative electrode is communicated with the second induction block and conductive, a battery positive electrode is communicated with a resistance positive electrode and conductive, a motor negative electrode is communicated with a current sensor positive electrode and conductive, a current sensor negative electrode is communicated with the second induction block and conductive, and the current sensor is communicated with the PLC.

An intelligent learning desk is applied with the book pressing assembly.

Preferably, the novel multifunctional desk comprises a base, wherein a base side plate is arranged on the base, a desk plate is arranged at the top of the base, a first vertical plate, a second vertical plate and a third vertical plate are fixed on the desk plate, the top of the third vertical plate is tightly attached to a protective shell, the protective shell is fixed on a fourth vertical plate, a first partition plate, a second partition plate and a third partition plate are sequentially arranged between the fourth vertical plate and the first vertical plate from top to bottom, and a first placing groove is formed between the first partition plate and the second partition plate; a second placing groove is formed between the second partition plate and the third partition plate;

the book pressing device is characterized in that a sliding partition plate is arranged in the first placing groove and the second placing groove, a partition plate through groove is formed in the sliding partition plate, book pressing assemblies are respectively arranged in the first placing groove and the second placing groove, and two ends of the sliding partition plate are respectively fixed with the shaft plate in an assembling mode.

Preferably, book pressing assemblies are arranged in the first placing groove and the second placing groove, and driving screw holes of the book pressing assemblies in the first placing groove and the second placing groove are assembled with the first driving shaft and the second driving shaft through screw threads in a screwing mode respectively;

the first driving shaft and the second driving shaft are respectively and rotatably assembled with the shaft plate, one ends of the first driving shaft and the second driving shaft penetrate through the fourth vertical plate and are respectively assembled with the first belt wheel and the second belt wheel, and the first belt wheel and the second belt wheel are respectively connected with the first auxiliary belt wheel and the second auxiliary belt wheel through the first belt and the second belt to form a belt transmission structure;

the first auxiliary belt wheel and the second auxiliary belt wheel are respectively arranged at one ends of the first power shaft and the second power shaft, and the first power shaft and the second power shaft are driven by the power assembly.

Preferably, the power assembly comprises a first power shaft and a second power shaft, the other ends of the first power shaft and the second power shaft penetrate through a first vertical partition plate to be assembled and fixed with a first gear and a second gear respectively, the first vertical partition plate is fixed on a first diaphragm plate, and a second vertical partition plate and a third vertical partition plate which are parallel to the first vertical partition plate are also fixed on the first diaphragm plate;

the first gear and the second gear can be meshed with a third gear respectively for transmission, the third gear is fixed at one end of a third power shaft, the third power shaft passes through a first tangential abdication groove on the second vertical partition plate and a second tangential abdication groove on the third vertical partition plate and then is assembled and fixed with a third belt wheel, and the third belt wheel is connected with a third secondary belt wheel through a third belt to form a belt transmission structure;

the third auxiliary belt wheel is arranged at one end of the output shaft, and the output shaft penetrates through a third tangential abdication groove of the fourth vertical partition plate and is then arranged in the motor;

the upper side and the lower side of the motor are respectively assembled and fixed with an upper motor plate and a lower motor plate, a lower connecting plate is fixed at the bottom of one end of the lower motor plate far away from the output shaft, and the lower connecting plate is hinged with the top of the supporting shaft through a motor rotating shaft;

the support shaft pack into the rotatory downthehole of second diaphragm, and the back shaft can be in second diaphragm internal circumferential direction, the support shaft bottom be provided with the retaining ring, the retaining ring be used for preventing that the support shaft from moving in the axial, first diaphragm, second diaphragm both sides respectively with third riser, fourth riser assembly fixed.

Preferably, the first tangential abdication groove, the second tangential abdication groove and the third tangential abdication groove have the same structure, the first tangential abdication groove is inclined upwards, and the inclined direction is inclined upwards from the second gear to the first gear;

the upper motor plate is fixedly provided with a mounting convex shaft, the mounting convex shaft is fixedly assembled with the bottom of a motor spring, and the top of the motor spring is fixedly assembled with a first diaphragm plate;

the third power shaft, the first tangential abdication groove and the second tangential abdication groove are respectively sleeved with a collar;

a shaft barrel is arranged between the two shaft collars, the shaft barrel and the third power shaft can be assembled in a circumferential rotation way, the shaft barrel is fixedly assembled with one end of the telescopic shaft, and the other end of the telescopic shaft is assembled with the electromagnet;

the electromagnet shell is rotatably assembled with the electromagnetic mounting plate through an electromagnetic rotating shaft, and the electromagnetic mounting plate is fixed on the first diaphragm plate;

the second collar is arranged on the third power shaft, the second collar and the third power shaft can be assembled in a circumferential rotation mode, the second collar is fixedly assembled with one end of the tension spring, the other end of the tension spring is fixedly assembled with the spring shaft, the spring shaft is fixed on the third vertical partition plate, and the installation position of the spring shaft is lower than the lowest point of the first tangential abdication groove.

Preferably, the expansion assembly comprises a baffle plate, a hinged plate and an expansion plate which are fixed on the outer side of the side plate of the base, wherein the expansion plate is assembled and hinged with the table plate through a hinge, a rotating groove is formed between the expansion plate and the table plate, the expansion plate is connected with the top surface of the table plate through a protective sheet, and the protective sheet is used for sealing the rotating groove;

the bottom surface of the expansion board is fixedly provided with a guide sliding board, the guide sliding board is provided with a guide sliding groove and a locking notch, the guide sliding groove is slidably assembled with a first rolling shaft, a first pin shaft is arranged at one end of a supporting rod, and the other end of the supporting rod is rotatably assembled with a hinged board through a second pin shaft;

the first pin shaft can be arranged in the locking groove, and a torsion spring is arranged between the support rod and the hinged plate and used for enabling the support rod to generate a force for rotating towards the expansion plate.

The beneficial effects of the invention are as follows:

1. the book pressing device is simple in structure, can automatically press books, senses whether books are pressed or not through the first sensing circuit and the second sensing circuit, and does not consume electricity at ordinary times, so that the energy consumption is low.

2. The invention provides power through the power component, and the power component adopts a motor and is switched by the electromagnet, so that the maintenance cost is low and the invention is safer.

3. The invention directly and integrally installs the lamp strip on the desk, and can effectively protect eyes and prevent the eyes from being hurt by insufficient light through automatic control of the light-sensitive switch.

4. According to the invention, the desktop is expanded through the expansion component, so that the requirement of a large desktop in special cases is met.

Drawings

Fig. 1 to 4 are schematic structural views of the present invention.

FIG. 5 is a schematic view of the mounting structure of the light bar of the present invention.

Fig. 6-9 are schematic diagrams of the book pressing assembly of the present invention.

FIG. 10 is a schematic diagram of a sensing assembly according to the present invention.

Fig. 11-15 and 17 are schematic views of the power assembly of the present invention.

FIG. 16 is a schematic view of the shaft assembly of the present invention.

Fig. 18 is a schematic view of the mounting structure between the lower motor plate and the second diaphragm plate of the present invention.

Fig. 19-20 are schematic views of the expansion assembly of the present invention.

Figure 21 is a schematic view of the mounting of the table and expansion board of the present invention.

Description of the embodiments

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

referring to fig. 1-21, an intelligent learning table includes a base 110, a base side plate 111 is provided on the base 110, a table board 120 is installed at the top of the base 110, a first vertical plate 131, a second vertical plate 132 and a third vertical plate 133 are fixed on the table board 120, the top of the third vertical plate 133 is tightly attached to a protective shell 150, the protective shell 150 is fixed on a fourth vertical plate 134, a first partition plate 121, a second partition plate 122 and a third partition plate 123 are sequentially installed between the fourth vertical plate 134 and the first vertical plate 131 from top to bottom, and a first placing groove is formed between the first partition plate 121 and the second partition plate 122; a second placing groove is formed between the second partition board and the third partition board 123;

the two second vertical plates 132 are connected and fixed through a fourth partition plate 180, a control host 240 and an upper fixing block 181 are fixed on the fourth partition plate 180, a light-sensing switch 250 is installed on the control host 240, the light-sensing switch 250 is used for controlling the on-off of the current of the light bar 230, and a light source is installed on the light bar 230, and when the light-emitting device is used, the light-sensing switch 250 is connected with the light source current, and the light source is electrified to emit light, so that illumination is provided. The lamp strip 230 on be provided with down fixed block 231, last fixed block 181 and lower fixed block 231 between articulated through lamp strip pivot 232, during the use, lamp strip 230 can rotate with lamp strip pivot 232 as the center to the adjustment illumination angle. The design directly integrates the lamp, so that the space can be effectively saved. At present, a desk lamp is purchased in addition, so that the desk lamp occupies certain space, and the lighting effect is limited.

The control host 240 is internally provided with a PLC (or a singlechip), and when in use, the control host receives and transmits control instructions through the PLC, controls the operation of each electrical device and is in communication connection with each device;

the display 220 is mounted in the grid of the desk board 120 between the two second vertical boards 132, the display 220 is in communication connection with the computer 210, and the display 220 and the computer 210 together form a desktop computer. The design mainly considers the development of internet technology, and can not avoid searching and learning data by a computer during learning.

The first placing groove and the second placing groove are internally provided with a sliding partition plate 160, the sliding partition plate 160 is provided with a partition plate through groove 161, book pressing assemblies B are respectively arranged in the first placing groove and the second placing groove, and two ends of the sliding partition plate 160 are respectively assembled and fixed with the shaft plate 170;

the book pressing assembly B comprises a book pressing power block B110, wherein the book pressing power block B110 passes through a partition board through groove 161 and is assembled and fixed with a book pressing shell B120, a power screw hole B111 is formed in the book pressing power block B110, a book pressing plate B130 is arranged on one side of the book pressing shell B120 facing a fourth vertical plate 143, the book pressing plate B130 is assembled and fixed with one end of a book pressing shaft B210, the other end of the book pressing shaft B210 is arranged in the book pressing shell B120 and is assembled with a book pressing nut B310 through screw threads in a screwing mode, and therefore the maximum distance of movement of the book pressing shaft B210 to the book pressing plate B130 is limited;

a book pressing spring B410 is arranged between the book pressing plate B130 and the book pressing shell B120, and the book pressing spring B410 is preferably sleeved on the book pressing shaft B210;

the book pressing shell B120 and the book pressing plate B130 are close to each other, the end faces close to each other are respectively provided with a first induction block B511 and a first matching induction block B512, the first induction blocks B511 and the first matching induction blocks B512 are respectively communicated with a first induction circuit, and the first induction circuit comprises a battery, a battery cathode is communicated with the first induction blocks B511 and conductive, a battery anode is communicated with a resistance anode and conductive, a motor cathode is communicated with a current sensor anode and conductive, a current sensor cathode is communicated with the first induction blocks B511 and conductive, and the current sensor is communicated with the PLC. In the initial state, the first sensing block B511 and the first matching sensing block B512 are separated under the action of the book pressing spring, the first sensing circuit does not form a loop, and the current sensor does not have a signal. When the first sensing block B511 and the first matching sensing block B512 are tightly attached against the elasticity of the book pressing spring, the first sensing circuit forms a loop, the current sensor generates a signal and transmits the signal to the PLC, the PLC receives the signal and judges that the pressure born by the book pressing plate is larger, so that the book pressing assembly B is controlled to retreat. Until the first sensing block B511 and the first matching sensing block B512 are separated, the current sensor has no signal. The design mainly prevents the book pressing assembly B from pressing books for a long time, so that the books are excessively pressed and damaged or the motor is burnt out (the motor is blocked to cause burning out easily), and in addition, the clamping hand can be prevented.

When the book pressing device is used, books are placed well, the book pressing assembly is driven to press the books towards the fourth vertical plate until the first sensing block B511 and the first matching sensing block B512 are in contact with and conduct electricity, then the book pressing assembly is retracted by 4-6cm, so that the book pressing plate B130 is tightly attached to the books, meanwhile, the first sensing block B511 and the first matching sensing block B512 are separated, and at the moment, the book pressing plate B130 presses the books through the elasticity of the book pressing springs, but the pressure is not large, and the books can be fixed. The design makes the user take out books very convenient, and once the pressure between books is too great, the books can be difficult to take out and the books are easy to damage.

In addition, because of the adjustable gap of 4-6cm, a user can insert and place books at any time, and can place books without adjusting the book pressing assembly again, so that the book pressing device is very convenient to use. After the user inserts the book, if the first sensing block B511 and the first matching sensing block B512 are contacted again, the book pressing assembly continues to the rear leg for 4-6cm, so that the insertion space is reserved.

Preferably, since a large pressure is required when a general book is vertically placed and the taking and placing are inconvenient, the applicant is provided with a plug hole B131 on the book pressing plate B130, the plug hole B131 is assembled with a plug rod B610 in a plug manner, the plug rod B610 is fixed on a convex plate B600, a pressure surface B602 and a connection inclined surface B601 are arranged on the convex plate B600, and the pressure surface B602 protrudes out of the outer surface of the book pressing plate B130. The design makes books in an inclined state when being pressed, so that the books are more attractive on one hand and more convenient to take and insert on the other hand.

Preferably, since in the case of a relatively large number of books it is possible to cause the first sensing block B511 and the first cooperating sensing block B512 to come into contact but the books are still not pressed, since each book has friction, the applicant makes the book pressing assembly B compare the chicken ribs as soon as this occurs, and the following improvement is made:

an adjusting cylinder 135 is fixed on a fourth vertical plate 134, a fixed disc 136 is fixed in the adjusting cylinder 135, the fixed disc 136 and an induction shaft B740 can be axially and slidably assembled, one end of the induction shaft B740 passes through the fourth vertical plate 134 and is fixedly assembled with the induction plate B710, an induction limit nut B750 is arranged on the part of the induction shaft B740 which is arranged in the adjusting cylinder 135, an induction spring B730 is arranged between the induction limit nut B750 and the fixed disc 136, and the induction spring B730 is used for generating force for enabling the induction shaft B740 to move leftwards;

the sensing limit nut B750 is assembled with the sensing shaft B740 through screw thread screwing, and is used for limiting the maximum displacement of the sensing shaft B740 to move rightwards;

the induction plate B710 and the fourth vertical plate B134 are close to each other and are provided with a second induction block B721 and a second matching induction block B722 on the end surfaces, the second induction block B721 and the second matching induction block B722 are respectively communicated with a second induction circuit, and the second induction circuit comprises a battery, a battery cathode is communicated with the second induction block and conductive, a battery anode is communicated with a resistance anode and conductive, a motor cathode is communicated with a current sensor anode and conductive, a current sensor cathode is communicated with the second induction block and conductive, and the current sensor is communicated with the PLC. In the initial state, the second sensing block and the second matching sensing block are separated under the action of the sensing spring, the second sensing circuit does not form a loop, and the current sensor does not have a signal. When the second sensing block and the second matching sensing block are tightly attached against the elasticity of the sensing spring, the second sensing circuit forms a loop, the current sensor generates a signal and transmits the signal to the PLC, the PLC receives the signal and judges that the pressure at the sensing plate reaches the maximum, and at the moment, if the first sensing circuit forms the loop, the book pressing is judged to be completed, and then the book pressing assembly retreats. The sensing spring drives the sensing plate to move towards the book pressing assembly until the second sensing block B721 and the second matching sensing block B722 are separated.

Book pressing components are arranged in the first placing groove and the second placing groove, driving screw holes B111 of the book pressing components in the first placing groove and the second placing groove are respectively assembled with the first driving shaft 310 and the second driving shaft 320 through screw threads in a screwing mode, and when the first driving shaft 310 and the second driving shaft 320 rotate circumferentially, the book pressing components can be driven to move in the axial direction;

the first driving shaft 310 and the second driving shaft 320 are respectively rotatably assembled with the shaft plate 170, one ends of the first driving shaft 310 and the second driving shaft 320 penetrate through the fourth vertical plate 134 and are respectively assembled with the first belt wheel C611 and the second belt wheel C621, and the first belt wheel C611 and the second belt wheel C621 are respectively connected with the first auxiliary belt wheel C612 and the second auxiliary belt wheel C622 through the first belt C211 and the second belt C212 to form a belt transmission structure;

the first secondary belt pulley C612 and the second secondary belt pulley C622 are respectively arranged at one ends of the first power shaft C110 and the second power shaft C120;

the power assembly C comprises a first power shaft C110 and a second power shaft C120, the other ends of the first power shaft C110 and the second power shaft C120 penetrate through a first vertical partition plate C311 to be assembled and fixed with a first gear C411 and a second gear C412 respectively, the first vertical partition plate C311 is fixed on a first diaphragm plate C321, and a second vertical partition plate C312 and a third vertical partition plate C313 which are parallel to the first vertical partition plate C311 are also fixed on the first diaphragm plate C321;

the first gear C411 and the second gear C412 can be meshed with a third gear C413 for transmission respectively, the third gear C413 is fixed at one end of a third power shaft C130, the third power shaft C130 passes through a first tangential stepping groove C3121 on a second vertical partition plate C312 and a second tangential stepping groove C3131 on the third vertical partition plate C312 and then is assembled and fixed with a third belt wheel C631, and the third belt wheel C631 is connected with a third secondary belt wheel C632 through a third belt C213 to form a belt transmission structure;

the third secondary pulley C632 is mounted at one end of the output shaft C631, the output shaft C531 passes through the third tangential abdication groove C3141 of the fourth vertical partition board C314 and is then mounted in the motor C530, the motor C530 can drive the output shaft to rotate circumferentially, and the motor C530 is a bidirectional motor, i.e. it can rotate positively and negatively.

The upper side and the lower side of the motor C530 are respectively assembled and fixed with an upper motor plate C322 and a lower motor plate C323, a lower connecting plate C810 is fixed at the bottom of one end, far away from the output shaft, of the lower motor plate C323, and the lower connecting plate C810 is hinged with the top of a supporting shaft C820 through a motor rotating shaft C830, so that the lower motor plate can rotate through the motor rotating shaft;

the support shaft C820 is arranged in a rotating hole C3241 of the second diaphragm plate C324, the support shaft C820 can circumferentially rotate in the second diaphragm plate C324, a retaining ring C821 is arranged at the bottom of the support shaft C820 and used for preventing the support shaft from moving in the axial direction, and two sides of the first diaphragm plate C321 and the second diaphragm plate C324 are respectively assembled and fixed with the third vertical plate 133 and the fourth vertical plate 134.

The first tangential abdication groove, the second tangential abdication groove and the third tangential abdication groove have the same structure, referring to fig. 17, the first tangential abdication groove C3121 is inclined upwards, and the inclined direction is inclined upwards from the second gear to the first gear.

In the initial state, the third gear C413 is engaged with the second gear C412, the third power shaft C130 is located at the lowest point of the first tangential abdication groove C3121 and the second tangential abdication groove C3131, and the output shaft C531 is located at the lowest point of the third tangential abdication groove C3141, and at this time, the motor can drive the second driving shaft 320 to rotate, that is, can drive the book pressing assembly in the second placing groove to move.

The upper motor plate C322 is fixedly provided with a mounting convex shaft C150, the mounting convex shaft C150 is fixedly assembled with the bottom of the motor spring C550, and the top of the motor spring C550 is fixedly assembled with the first diaphragm plate C321. The design ensures that the motor spring always presses the upper motor plate, thereby ensuring the stable operation of the motor.

The assembly parts of the third power shaft C130 and the first tangential abdication groove and the second tangential abdication groove are respectively sleeved with the collar C710, and when the device is used, the collar C710 can closely roll with the inner side surfaces of the first tangential abdication groove and the second tangential abdication groove so as to reduce the abrasion degree of the third power shaft C and the inner side surfaces of the first tangential abdication groove and the second tangential abdication groove;

a shaft cylinder C720 is arranged between the two collars C710, the shaft cylinder C720 and the third power shaft C130 can be assembled in a circumferential rotation mode, the shaft cylinder C720 is fixedly assembled with one end of the telescopic shaft C511, the other end of the telescopic shaft C511 is assembled with the electromagnet C510, and the electromagnet C510 can drive the telescopic shaft C511 to move in the axial direction;

the electromagnet C510 shell is rotatably assembled with the electromagnetic mounting plate C315 through the electromagnetic rotating shaft C160, and the electromagnetic mounting plate C315 is fixed on the first diaphragm plate C321. When the book pressing assembly in the first placing groove needs to be driven, the electromagnet C510 is powered to extend the telescopic shaft C511, so that the third power shaft C130 moves upwards along the first tangential giving groove and the second tangential giving groove until the collar C710 reaches the highest point of the first tangential giving groove and the second tangential giving groove, and at the moment, the first gear C411 and the third gear C413 are meshed for transmission. In the process, the third power shaft drives the output shaft C531 to move along the first tangential abdication groove through the third belt C213, and the motor rotates the adjustment position through the motor rotating shaft and the supporting shaft, meanwhile, due to the compression of the motor spring, the motor can be compressed and stable on the one hand, and on the other hand, the tensioning effect can be generated on the third belt, so that the third belt is prevented from loosening.

Preferably, a second collar C730 may be mounted on the third power shaft C130, the second collar C730 is assembled with the third power shaft in a circumferential rotation manner, the second collar C730 is assembled and fixed with one end of a tension spring C540, the other end of the tension spring C540 is assembled and fixed with a spring shaft C140, and the spring shaft C140 is fixed on the third vertical partition plate C311. The installation position of the spring shaft C140 is lower than the lowest point of the first tangential yield groove, and the tension spring is stretched in the process that the third power shaft C130 moves to the topmost part of the first tangential yield groove by the design, so that the tension spring stores elasticity, and auxiliary resetting power is provided for the third power shaft when the third power shaft needs to be reset. Of course, a similar structure can be arranged on the second vertical partition plate C312 and the third power shaft, so that the third power shaft is reset more stably and quickly.

The outside of the power component C is sealed by the power door 140, the power door 140 and the protective shell 150 are made of transparent materials, and the protective shell 150 covers the outside of the first belt and the second belt. The design enables a user to intuitively observe the operation of the power assembly, and in the high-strength learning process, the power assembly can disperse the sight of the user, so that the user can obtain a short rest, the pressure reducing effect is achieved, and the principle of the power assembly is basically consistent with that of a fingertip gyroscope.

In addition, the first driving shaft and the second driving shaft are driven by the same motor, so that misoperation is mainly prevented, and if different motors are separately used, errors are likely to be caused when the motor is used, and a clamping hand is caused. The mode of driving the second driving shaft by the motor defaults is adopted, so that the use frequency of the second placing groove is high, and an operator can remember the second placing groove conveniently, and misoperation is avoided. In addition, this is a cost-saving way, and although parts are added, one motor is reduced, and the cost is not increased but slightly reduced in terms of manufacturing cost. And the motor is easy to be damaged when not used for a long time, if two motors are adopted, the motor for driving the first driving shaft is not always used, and the motor is placed for a long time, so that the later maintenance and overhaul cost is increased. The scheme adopts a motor, an electromagnet and other mechanical structures to be more durable. Through actual measurement and calculation of the applicant, the cost difference between two motors and one motor adopted in the scheme is about plus or minus 30 yuan, and minus 30 yuan represents 30 yuan of the scheme. This cost variation may be controlled and may be negligible as a whole.

Referring to fig. 19-21, the applicant adds the expansion assembly a to expand the area of the desk, because the area of the desk is likely to be insufficient in actual use, such as coaching by others and placing other documents, and the desk is either squeezed or additionally added to be matched with the desk, which is inconvenient;

the expansion assembly A comprises a baffle A310, a hinged plate A320 and an expansion plate A100 which are fixed on the outer side of a base side plate 111, wherein the expansion plate A100 is assembled and hinged with the table plate 120 through a hinge A610, a rotating groove A101 is formed between the expansion plate A100 and the table plate 120, the expansion plate A100 is connected with the top surface of the table plate 120 through a protective sheet A200, and the protective sheet A200 is used for sealing the rotating groove A101 to prevent the user from being injured by the protective sheet A200;

the bottom surface of the expansion board A100 is fixedly provided with a guide sliding board A110, the guide sliding board A110 is provided with a guide sliding chute A111 and a locking notch A112, the guide sliding chute A111 is slidably assembled with a first roller A511, a first pin A511 is arranged at one end of a supporting rod A410, and the other end of the supporting rod A410 is rotatably assembled with a hinge plate A320 through a second pin A512;

the first pin a511 may be installed in the locking slot a112, and a torsion spring is installed between the support rod a410 and the hinge plate a320, where the torsion spring is used to make the support rod a410 generate a force for rotating the expansion plate, so that when the first pin is assembled with the locking slot, the torsion spring provides a rotating force for the support rod a410, preventing the first pin from being separated from the locking slot, and in addition, the gravity of the expansion plate also has this function.

Fig. 1 is an initial state in the extension set price, fig. 2 is a use state of the extension assembly, in the initial state, the extension plate does not exceed the baffle a310, and the first pin a511 is located at the lowest point of the guide chute a 111. When the expansion board is required to be used, the expansion board is rotated upwards by taking the hinge as the center by hands, at the moment, the first pin shaft can slide in the guide chute A111, when the expansion board is parallel to the desk board or slightly higher than the desk board, the locking notch is assembled with the first pin shaft, then the expansion board is released, the expansion board clamps the first pin shaft in the locking notch by means of self gravity, at the moment, the desktop expanded by the expansion board can be used, and the expansion board is quite convenient.

Referring to fig. 21, in actual use, the protective sheet a200 is subjected to a relatively large tensile force, resulting in an insufficient life, and therefore, the applicant makes the following modifications:

the fixed part A210 is respectively arranged at two ends of the protection sheet A200, the two fixed parts A210 are connected through the fold part A220, when the unfolding plate is used, the fold part A220 is in a state of being folded in the rotating groove A101, and when the unfolding plate is folded, the fold part A220 is unfolded, so that the stretching of the protection sheet is avoided, and the protection sheet is effectively protected.

The present invention is not described in detail in the present application, and is well known to those skilled in the art.

The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. An intelligent learning desk, which is characterized in that: the book pressing assembly comprises a book pressing power block, wherein the book pressing power block penetrates through a partition plate through groove and is assembled and fixed with a book pressing shell, a power screw hole is formed in the book pressing power block, a book pressing plate is arranged on one side of the book pressing shell, facing a fourth vertical plate, of the book pressing shell, the book pressing plate is assembled and fixed with one end of a book pressing shaft, the other end of the book pressing shaft is arranged in the book pressing shell and assembled with a book pressing nut through screw threads in a screwing mode, and therefore the maximum distance of movement of the book pressing shaft to the book pressing plate is limited; a book pressing spring is arranged between the book pressing plate and the book pressing shell;

the book pressing shell and the book pressing plate are respectively provided with a first induction block and a first matching induction block on the end surfaces close to each other, the first induction blocks and the first matching induction blocks are respectively communicated with a first induction circuit, and the first induction circuit comprises a battery, a battery cathode is communicated with the first induction blocks and conductive, a battery anode is communicated with a resistor anode and conductive, a motor cathode is communicated with a current sensor anode and conductive, a current sensor cathode is communicated with the first induction blocks and conductive, and a current sensor is communicated with a PLC;

after the first sensing block and the first matching sensing block are contacted and conducted, the book pressing assembly retreats by 4-6 cm;

the book pressing plate is provided with a plug hole, the plug hole is assembled with a plug rod in a plug way, the plug rod is fixed on a convex plate, the convex plate is provided with a pressure surface and a connecting inclined surface, and the pressure surface protrudes out of the outer surface of the book pressing plate;

an adjusting cylinder is fixed on the fourth vertical plate, a fixed disc is fixed in the adjusting cylinder, the fixed disc and an induction shaft can be axially and slidably assembled, one end of the induction shaft passes through the fourth vertical plate and is fixedly assembled with the induction plate, an induction limit nut is arranged on the part of the induction shaft, which is arranged in the adjusting cylinder, and an induction spring is arranged between the induction limit nut and the fixed disc and is used for generating force for enabling the induction shaft to move leftwards;

the induction plate and the fourth vertical plate are respectively provided with a second induction block and a second matching induction block on the end surfaces close to each other, the second induction blocks and the second matching induction blocks are respectively communicated with a second induction circuit, and the second induction circuit comprises a battery, a battery cathode is communicated with the second induction block and conductive, a battery anode is communicated with a resistor anode and conductive, a motor cathode is communicated with a current sensor anode and conductive, a current sensor cathode is communicated with the second induction block and conductive, and a current sensor is communicated with a PLC;

the base is provided with a base side plate, the top of the base is provided with a table plate, the table plate is fixedly provided with a first vertical plate, a second vertical plate and a third vertical plate, the top of the third vertical plate is tightly attached to a protective shell, the protective shell is fixedly arranged on a fourth vertical plate, a first partition plate, a second partition plate and a third partition plate are sequentially arranged between the fourth vertical plate and the first vertical plate from top to bottom, and a first placing groove is formed between the first partition plate and the second partition plate; a second placing groove is formed between the second partition plate and the third partition plate;

the first placing groove and the second placing groove are internally provided with a sliding partition plate, the sliding partition plate is provided with a partition plate through groove, book pressing assemblies are respectively arranged in the first placing groove and the second placing groove, and two ends of the sliding partition plate are respectively assembled and fixed with the shaft plate;

book pressing assemblies are arranged in the first placing groove and the second placing groove, and driving screw holes of the book pressing assemblies in the first placing groove and the second placing groove are assembled with the first driving shaft and the second driving shaft through screw threads in a screwing mode respectively;

the first auxiliary belt wheel and the second auxiliary belt wheel are respectively arranged at one ends of a first power shaft and a second power shaft, and the first power shaft and the second power shaft are driven by a power assembly;

the power assembly comprises a first power shaft and a second power shaft, the other ends of the first power shaft and the second power shaft penetrate through a first vertical partition plate to be assembled and fixed with a first gear and a second gear respectively, the first vertical partition plate is fixed on a first diaphragm plate, and a second vertical partition plate and a third vertical partition plate which are parallel to the first vertical partition plate are also fixed on the first diaphragm plate;

the support shaft is arranged in the rotary hole of the second diaphragm plate, the support shaft can circumferentially rotate in the second diaphragm plate, a retaining ring is arranged at the bottom of the support shaft and used for preventing the support shaft from moving in the axial direction, and two sides of the first diaphragm plate and the second diaphragm plate are respectively assembled and fixed with the third vertical plate and the fourth vertical plate;

the first tangential abdication groove, the second tangential abdication groove and the third tangential abdication groove have the same structure, the first tangential abdication groove is inclined upwards, and the inclination direction is inclined upwards from the second gear to the first gear;

2. The intelligent learning desk of claim 1, wherein: the expansion assembly comprises a baffle plate, a hinged plate and an expansion plate which are fixed on the outer side of a side plate of the base, the expansion plate is assembled and hinged with the table plate through a hinge, a rotating groove is formed between the expansion plate and the table plate, the expansion plate is connected with the top surface of the table plate through a protective sheet, and the protective sheet is used for sealing the rotating groove;