CN113672038B

CN113672038B - Multi-purpose panel computer with independent screen

Info

Publication number: CN113672038B
Application number: CN202110952972.0A
Authority: CN
Inventors: 唐剑平
Original assignee: Shenzhen Xinhaoyuan Precision Technology Co ltd
Current assignee: Shenzhen Xinhaoyuan Precision Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-09-20
Anticipated expiration: 2041-08-19
Also published as: CN113672038A

Abstract

The invention discloses a multi-purpose tablet personal computer with an independent screen, which comprises a tablet personal computer body, wherein a display screen is fixedly arranged at the front end of the tablet personal computer body. When the protective plate is used, the transmission gear three is rotated to drive the transmission gear two and the worm on the lower side to rotate, the belt wheel transmission assembly arranged also drives the worm on the upper side to rotate, the worm drives the worm wheel and the screw rod to rotate, the screw rod drives the connecting plate and the protective plate one to move outwards, so that the protective plate one extends out of the tablet personal computer body, the transmission gear one can be driven to rotate while the worm rotates, the transmission gear drives the racks and the protective plate two on the two sides to be away from each other, the protective plate two extends out of the tablet personal computer body, and the protective plate one and the protective plate two are arranged to play a role in damping and buffering for the tablet personal computer body, so that the probability of accidental breakage when the tablet personal computer body is used is reduced, and the protective effect is played for the tablet personal computer body.

Description

Multi-purpose tablet computer with independent screen

Technical Field

The invention relates to the technical field of tablet computers, in particular to a multi-purpose tablet computer with an independent screen.

Background

The tablet personal computer is also called a portable computer, is a small-sized and portable personal computer, and takes a touch screen as basic input equipment. It possesses a touch screen (also known as digitizer technology) that allows a user to work with a stylus or digitizer rather than a traditional keyboard or mouse. The user may enter the input through built-in handwriting recognition, on-screen soft keyboard, voice recognition, or a real keyboard if the model is equipped. The tablet personal computer has distinctive characteristics in appearance. Some of them are just thicker than a general display screen like a single liquid crystal display screen, and necessary hardware devices such as a hard disk are arranged inside the display screen. The portable computer is small and light like a notebook computer, can be transferred to a use place at any time, and has movement flexibility compared with a desktop computer. The tablet personal computer has the biggest characteristics of touch screen and handwriting recognition input functions, strong pen input recognition, voice recognition and gesture recognition capabilities and mobility.

When the existing tablet computer with the independent screen is used, the tablet computer is easily broken due to accidents, external dust easily enters the tablet computer from the heat dissipation holes when the tablet computer is not used, and the dustproof effect is poor.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, when a tablet personal computer is used, the tablet personal computer is easy to break due to accidents, and when the tablet personal computer is not used, external dust easily enters the tablet personal computer from a heat dissipation hole, so that the dustproof effect is poor.

In order to achieve the purpose, the invention adopts the following technical scheme:

a display screen is fixedly mounted at the front end of the tablet personal computer body, a telescopic touch screen is connected to the upper end of the tablet personal computer body in a sliding mode, rubber plates are fixedly mounted at the left end and the right end of the tablet personal computer body, first protection plates penetrate through the upper end and the lower end of the tablet personal computer body symmetrically in the left and right directions, a connecting plate is fixedly mounted at one end, close to each other, of the first protection plates at the upper side and one end, close to each other, of the first screw rod at the lower side, worm wheels are fixedly connected at the front ends of the worm wheels, worms are meshed with the front ends of the worm wheels, a belt wheel transmission assembly is mounted at one end, far away from each other, second protection plates penetrate through the four corners at the front end and the rear end of the tablet personal computer body, and the first protection plates and the second protection plates are made of rubber materials, the two adjacent ends of the two protection plates on the front side and the rear side are fixedly connected with racks, the one adjacent ends of the racks are meshed with a first transmission gear, the first transmission gear is fixedly connected to a worm, the rear end of the tablet computer body is rotatably connected with a supporting seat, push plates are symmetrically arranged on the left side and the right side of the front side of the supporting seat, the supporting seat is attached to the push plates, the front ends of the push plates are fixedly connected with a threaded sleeve, the front end of the threaded sleeve is in threaded connection with a second screw rod, the front ends of the second screw rod are fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with the worm, the left side and the right side of the front end of the supporting seat are hinged with connecting rods, the front ends of the connecting rods are hinged with sliding blocks, a third sliding rod penetrates through the sliding blocks, the upper end and the lower end of the third sliding rod are fixedly connected with vertical plates, the lower end of the tablet computer body is fixedly connected with the tablet computer body, the first sliding rod is sleeved with a spring, and a plurality of heat dissipation holes are formed in the rear end of the tablet computer body, the inner part of the tablet personal computer body is provided with blocking pieces corresponding to the heat dissipation holes, the blocking pieces are attached to the heat dissipation holes, the front ends of the blocking pieces are fixedly connected with a baffle plate, the upper side of the baffle plate penetrates through a sliding sleeve, a spring II is sleeved on the baffle plate, the lower end of the baffle plate is fixedly connected with a pull rope, the other end of the pull rope is fixedly connected with a winding roller, the winding roller is fixedly connected with a worm, the middle part of the worm is fixedly connected with a transmission gear II, the lower end of the transmission gear II is meshed with a transmission gear III, the left side and the right side of the inner part of the tablet personal computer body are rotatably connected with rotating rods, the lower end of each rotating rod and the worm are fixedly provided with a bevel gear set, the rotating rods are rotatably connected with the worm, the rotating rods are fixedly connected with a plurality of fan blades, the upper sides of the fan blades are provided with lifting pipes, the fans are fixedly arranged inside the lifting pipes are attached to the inner part of the tablet personal computer body, and the lower ends of the lifting pipes extend to the inner bottom part of the tablet personal computer body, the left end and the right end of the tablet personal computer body and the left end of the rubber plate, which corresponds to the lifting pipe, are provided with ash discharge ports.

Preferably, the first end of the screw rod, which is far away from the first screw rod, is fixedly connected with the first bearing, and the other end of the first bearing is fixedly connected with the inside of the tablet computer body.

Preferably, both ends are all fixedly connected with bearing two about the worm, and the one end fixedly connected with panel computer body that the worm was kept away from to bearing two.

Preferably, one end, far away from the first transmission gear, of the rack is fixedly connected with a first limiting plate, a first sliding rod penetrates through the first limiting plate, and one end, far away from each other, of the first sliding rod is fixedly connected with the inside of the tablet personal computer body.

Preferably, the screw rod II is fixedly connected with a bearing III, the lower end of the bearing III is fixedly connected with a fixing plate, and the lower end of the fixing plate is fixedly connected with the inner bottom end of the tablet computer body.

Preferably, the front end of the push plate is fixedly connected with a second sliding rod, a second limiting plate penetrates through the second sliding rod, and the front end of the second limiting plate is fixedly connected with a fixing plate.

Preferably, the rear end of the vertical plate is provided with a sliding groove corresponding to the sliding block, and the sliding block is connected with the vertical plate in a sliding manner.

Preferably, a pulley is arranged at the rear end in the tablet personal computer body corresponding to the pull rope, and the pull rope is attached to the surface of the pulley.

Preferably, the third transmission gear is fixedly connected with a rotating shaft, and the left end and the right end of the rotating shaft are rotatably connected with the tablet personal computer body.

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

1. when the protective plate is used, the transmission gear three is rotated to drive the transmission gear two and the worm on the lower side to rotate, the belt wheel transmission assembly arranged also drives the worm on the upper side to rotate, the worm drives the worm wheel and the screw rod to rotate, the screw rod drives the connecting plate and the protective plate one to move outwards, so that the protective plate one extends out of the tablet personal computer body, the transmission gear one can be driven to rotate while the worm rotates, the transmission gear drives the racks and the protective plate two on the two sides to be away from each other, the protective plate two extends out of the tablet personal computer body, and the protective plate one and the protective plate two are arranged to play a role in damping and buffering for the tablet personal computer body, so that the probability of accidental breakage when the tablet personal computer body is used is reduced, and the protective effect is played for the tablet personal computer body.

2. When the tablet personal computer is used, the worm rotates and simultaneously drives the bevel gear II, the bevel gear I and the screw rod II to rotate, the screw rod II drives the threaded sleeve, the push plate and the slide rod II to move backwards to push the supporting seat to rotate, the supporting seat rotates outwards to push the slide block to ascend under the action of the connecting rod, the spring I is compressed, and the supporting seat is arranged to support the tablet personal computer body conveniently, so that the tablet personal computer body can be obliquely placed on a desktop and is convenient to use.

3. When the heat dissipation device is used, the worm rotates and simultaneously drives the wire winding roller to rotate, the wire winding roller winds the pull rope, the pull rope pulls the baffle plate and the baffle plate to move downwards, so that the baffle plate and the heat dissipation holes are staggered, the heat dissipation holes are convenient to open, and heat dissipation is carried out when the tablet personal computer body is used.

4. When the portable type multifunctional tablet computer is not used, the set blocking sheet is convenient for blocking the heat dissipation holes, external dust is prevented from entering the portable type multifunctional tablet computer, the first protection plate, the second protection plate and the telescopic touch screen can be contracted inside the tablet computer body, the supporting seat can be stored at the rear end of the tablet computer body, space is saved, the portable type multifunctional tablet computer is convenient to carry, and the practicability is wide.

5. When the lifting pipe is used, the rotating rod and the fan blades are driven to rotate by the arranged bevel gear set, the fan blades blow the lifting pipe upwards to move upwards, meanwhile, the fan starts to work, when the left end opening of the lifting pipe is communicated with the dust exhaust port, the fan can exhaust dust at the bottom in the tablet personal computer body outwards, and the dust in the tablet personal computer body can be conveniently exhausted to the outside.

Drawings

Fig. 1 is a schematic structural diagram of a multi-purpose tablet computer with an independent screen according to the present invention;

fig. 2 is a schematic structural diagram of a position a of a multi-purpose tablet computer with an independent screen according to the present invention;

fig. 3 is a schematic structural diagram of a position B in a multi-purpose tablet computer with an independent screen according to the present invention;

FIG. 4 is a schematic side view of a first protection plate, a worm wheel and a worm of the multi-purpose tablet computer with an independent screen according to the present invention;

FIG. 5 is a schematic side view of a second protection plate, a first transmission gear and a rack in the multi-purpose tablet computer with an independent screen according to the present invention;

FIG. 6 is a schematic side view of a support base of a multi-purpose tablet computer with an independent screen according to the present invention;

FIG. 7 is a schematic side view of a heat dissipation hole, a baffle plate and a wire winding roller of a multi-purpose tablet computer with an independent screen according to the present invention;

FIG. 8 is a schematic diagram of a front side appearance structure of a multi-purpose tablet computer with an independent screen according to the present invention;

fig. 9 is a schematic diagram of a rear side appearance structure of a multi-purpose tablet computer with an independent screen according to the present invention;

fig. 10 is an enlarged schematic structural view of an ash discharge opening and an elevator tube of a multi-purpose tablet pc with an independent screen according to the present invention.

In the figure: 1. a tablet computer body; 2. a display screen; 3. a retractable touch screen; 4. a rubber plate; 5. a first protection plate; 6. a connecting plate; 7. a first screw rod; 8. a first bearing; 9. a worm gear; 10. a worm; 11. a second bearing; 12. a second protection plate; 13. a rack; 14. a first transmission gear; 15. a first limiting plate; 16. a first sliding rod; 17. a supporting seat; 18. pushing the plate; 19. a threaded sleeve; 20. a second screw; 21. a first bevel gear; 22. a second bevel gear; 23. a third bearing; 24. a fixing plate; 25. a second limiting plate; 26. a second sliding rod; 27. a connecting rod; 28. a slider; 29. a third sliding rod; 30. a vertical plate; 31. a first spring; 32. a chute; 33. heat dissipation holes; 34. a baffle plate; 35. a baffle plate; 36. a sliding sleeve; 37. a second spring; 38. pulling a rope; 39. a pulley; 40. a winding roll; 41. a second transmission gear; 42. a third transmission gear; 43. a rotating shaft; 44. a pulley drive assembly; 45. a rotating rod; 46. a bevel gear set; 47. a fan blade; 48. a lifting pipe; 49. a fan; 50. an ash discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-10, a multi-purpose tablet computer with an independent screen comprises a tablet computer body 1, a display screen 2 is fixedly installed at the front end of the tablet computer body 1, a telescopic touch screen 3 is slidably connected to the upper end of the tablet computer body 1, rubber plates 4 are fixedly installed at the left and right ends of the tablet computer body 1, protection plates 5 are symmetrically penetrated through the left and right ends of the tablet computer body 1, one ends, close to each other, of the protection plates 5 at the upper side and the lower side are fixedly installed with a connecting plate 6, a screw rod 7 is connected to the connecting plate 6 in a threaded manner, one end, close to each other, of the screw rod 7 at the upper side and the screw rod 7 at the lower side is fixedly connected with a worm wheel 9, the front end of the worm wheel 9 is engaged with a worm 10, a belt wheel transmission assembly 44 is installed at one end, far away from each other, of the worm wheels 9 is engaged with a worm 10, and belt wheel transmission assemblies 44 are installed on the left sides of the worms 10 at the upper side and the lower side, the left end and the right end of the worm 10 are both fixedly connected with a second bearing 11, and one end, far away from the worm 10, of the second bearing 11 is fixedly connected with the tablet personal computer body 1;

when the multifunctional flat computer is used, the third transmission gear 42 is rotated to drive the second transmission gear 41 and the worm 10 on the lower side to rotate, the worm 10 on the upper side is also driven to rotate through the arranged belt wheel transmission assembly 44, the worm 10 drives the worm wheel 9 and the first screw 7 to rotate, and the first screw 7 drives the connecting plate 6 and the first protection plate 5 to move outwards, so that the first protection plate 5 extends out of the interior of the flat computer body 1.

Example two

Referring to fig. 1 to 10, in this embodiment, basically the same as the first embodiment, it is more preferable that four corners of the front end and the rear end of the tablet computer body 1 are all penetrated by a second protection plate 12, the first protection plate 5 and the second protection plate 12 are made of rubber materials, one ends, close to each other, of the second protection plates 12 on the front side and the rear side are all fixedly connected with a rack 13, one ends, close to each other, of the racks 13 are engaged with a first transmission gear 14, the first transmission gear 14 is fixedly connected to the worm 10, one ends, far away from the first transmission gear 14, of the rack 13 are all fixedly connected with a first limiting plate 15, a first slide rod 16 is penetrated through the first limiting plate 15, and one ends, far away from each other, of the first slide rods 16 are fixedly connected to the inside of the tablet computer body 1;

when the tablet personal computer is used, the worm 10 rotates and simultaneously drives the first transmission gear 14 to rotate, the first transmission gear 14 drives the rack 13 and the second protection plate 12 on the two sides to be away from each other, and the second protection plate 12 extends out of the tablet personal computer body 1.

EXAMPLE III

Referring to fig. 1-10, in this embodiment, basically the same as the first embodiment, it is more preferable that the rear end of the tablet computer body 1 is rotatably connected with a supporting seat 17, push plates 18 are symmetrically arranged on the left and right sides of the front side of the supporting seat 17, the supporting seat 17 is attached to the push plates 18, the front end of the push plate 18 is fixedly connected with a threaded sleeve 19, the front end of the threaded sleeve 19 is threadedly connected with a screw rod two 20, the front end of the screw rod two 20 is fixedly connected with a bevel gear one 21, the bevel gear one 21 is engaged with a bevel gear two 22, the bevel gear two 22 is fixedly connected with the worm 10, the screw rod two 20 is fixedly connected with a bearing three 23, the lower end of the bearing three 23 is fixedly connected with a fixing plate 24, the lower end of the fixing plate 24 is fixedly connected with the inner bottom end of the tablet computer body 1, the front end of the push plate 18 is fixedly connected with a sliding rod two 26, the sliding rod two 26 penetrates through a second limiting plate 25, the front end of the limiting plate 25 is fixedly connected with the fixing plate 24, the left and right sides of the front end of the supporting seat 17 are hinged with connecting rods 27, a slide block 28 is hinged at the front end of the connecting rod 27, a slide rod III 29 penetrates through the slide block 28, a vertical plate 30 is fixedly connected to the upper end and the lower end of the slide rod III 29, the lower end of the vertical plate 30 is fixedly connected with the tablet personal computer body 1, a spring I31 is sleeved on the slide rod III 29, a sliding groove 32 is formed in the rear end of the vertical plate 30 corresponding to the slide block 28, and the slide block 28 is connected with the vertical plate 30 in a sliding mode;

when the tablet computer is used, the worm 10 rotates and simultaneously drives the bevel gear II 22, the bevel gear I21 and the screw rod II 20 to rotate, the screw rod II 20 drives the threaded sleeve 19, the push plate 18 and the slide rod II 26 to move backwards to push the supporting seat 17 to rotate, the supporting seat 17 rotates outwards to push the slide block 28 to ascend under the action of the connecting rod 27, the spring I31 is compressed, and the supporting seat 17 is arranged to support the tablet computer body 1 conveniently.

Example four

Referring to fig. 1-10, in the present embodiment, basically the same as the first embodiment, it is more preferable that the tablet computer body 1 is provided with a plurality of heat dissipation holes 33 at the rear end, a baffle 34 is arranged in the tablet personal computer body 1 corresponding to the heat dissipation holes 33, the baffle 34 and the heat dissipation holes 33 are mutually attached, a baffle 35 is fixedly connected to the front end of the baffle 34, a sliding sleeve 36 penetrates through the upper side of the baffle 35, a second spring 37 is sleeved on the baffle 35, a pull rope 38 is fixedly connected to the lower end of the baffle 35, a pulley 39 is arranged at the rear end in the tablet personal computer body 1 corresponding to the pull rope 38, the pull rope 38 is attached to the surface of the pulley 39, a winding roller 40 is fixedly connected to the other end of the pull rope 38, the winding roller 40 is fixedly connected with the worm 10, a second transmission gear 41 is fixedly connected to the middle of the worm 10, a third transmission gear 42 is meshed to the lower end of the second transmission gear 41, a rotating shaft 43 is fixedly connected to the third transmission gear 42, and the left end and the right end of the rotating shaft 43 are rotatably connected with the tablet personal computer body 1;

when the heat dissipation device is used, the worm 10 rotates and simultaneously drives the winding roller 40 to rotate, the winding roller 40 winds the pulling rope 38, the pulling rope 38 pulls the baffle 35 and the baffle 34 to move downwards, the baffle 34 and the heat dissipation holes 33 are staggered, the heat dissipation holes 33 are convenient to open, and heat dissipation is carried out when the tablet personal computer body 1 is used.

EXAMPLE five

Referring to fig. 1 to 10, in this embodiment, basically the same as the first embodiment, it is more preferable that the left and right sides inside the tablet personal computer body 1 are rotatably connected with a rotating rod 45, a bevel gear set 46 is fixedly installed on the lower end of the rotating rod 45 and the worm 10, the rotating rod 45 is rotatably connected with the worm 10, a plurality of fan blades 47 are fixedly connected to the rotating rod 45, a lifting pipe 48 is arranged on the upper side of the fan blades 47, a fan 49 is fixedly installed inside the lifting pipe 48, the lifting pipe 48 is attached to the inside of the tablet personal computer body 1, the lower end of the lifting pipe 48 extends to the inner bottom of the tablet personal computer body 1, and dust discharge ports 50 are formed in the left and right ends of the tablet personal computer body 1 and the left end of the rubber plate 4 corresponding to the lifting pipe 48;

during the use, drive bull stick 45 and flabellum 47 through the bevel gear group 46 that sets up and rotate, flabellum 47 upwards blows the ascending and descending pipe 48 upward movement, and meanwhile fan 49 begins work, and when the left end opening of ascending and descending pipe 48 and row of dust mouth 50 intercommunication, fan 49 can outwards be discharged the dust of bottom in the panel computer body 1, is convenient for discharge the inside dust of panel computer body 1 external world.

The working principle is as follows:

when the invention is used, the third transmission gear 42 is rotated to drive the second transmission gear 41 and the worm 10 on the lower side to rotate, the worm 10 on the upper side is also driven to rotate through the arranged belt wheel transmission assembly 44, the worm 10 drives the worm wheel 9 and the first screw rod 7 to rotate, the first screw rod 7 drives the connecting plate 6 and the first protection plate 5 to move outwards, so that the first protection plate 5 extends out of the tablet personal computer body 1, the worm 10 also drives the first transmission gear 14 to rotate while rotating, the first transmission gear 14 drives the racks 13 and the second protection plates 12 on two sides to be away from each other, so that the second protection plates 12 extend out of the tablet personal computer body 1, the arranged first protection plates 5 and the second protection plates 12 are convenient for playing a damping and buffering role on the tablet personal computer body 1, the probability of accidental breakage when the tablet personal computer body 1 is used is reduced, and a protection role is played on the tablet personal computer body 1;

the worm 10 can drive the second bevel gear 22, the first bevel gear 21 and the second screw 20 to rotate while rotating, the second screw 20 drives the threaded sleeve 19, the push plate 18 and the second slide rod 26 to move backwards to push the support seat 17 to rotate, the support seat 17 rotates outwards to push the slide block 28 to ascend under the action of the connecting rod 27, the first spring 31 is compressed, and the support seat 17 is arranged to support the tablet personal computer body 1 conveniently, so that the tablet personal computer body 1 can be obliquely placed on a desktop and is convenient to use;

the worm 10 can drive the winding roll 40 to rotate when rotating, the winding roll 40 winds the pulling rope 38, the pulling rope 38 pulls the baffle 35 and the baffle 34 to move downwards, the baffle 34 and the radiating holes 33 are staggered, the radiating holes 33 can be conveniently opened, the radiating is carried out when the tablet personal computer body 1 is used, when the tablet personal computer is not used, the set baffle 34 is convenient for blocking the radiating holes 33, and external dust is prevented from entering the radiating holes, the first protection plate 5, the second protection plate 12 and the telescopic touch screen 3 can be contracted inside the tablet personal computer body 1, the supporting seat 17 can be stored at the rear end of the tablet personal computer body 1, the space is saved, the carrying is convenient, and the practicability is wide;

the bevel gear set 46 drives the rotating rod 45 and the fan blades 47 to rotate, the fan blades 47 blow the lifting pipe 48 upwards, meanwhile, the fan 49 starts to work, when the left end opening of the lifting pipe 48 is communicated with the dust discharging port 50, the fan 49 can discharge dust at the bottom in the tablet personal computer body 1 outwards, and the dust inside the tablet personal computer body 1 is conveniently discharged outside.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The multipurpose tablet personal computer with the independent screen comprises a tablet personal computer body (1) and is characterized in that a display screen (2) is fixedly mounted at the front end of the tablet personal computer body (1), a telescopic touch screen (3) is connected to the upper end of the tablet personal computer body (1) in a sliding manner, rubber plates (4) are fixedly mounted at the left end and the right end of the tablet personal computer body (1), protection plates I (5) penetrate through the upper end and the lower end of the tablet personal computer body (1) in a bilateral symmetry manner, a connecting plate (6) is fixedly mounted at one end, close to the protection plates I (5), of the upper side and the lower side, a screw I (7) is connected to the connecting plate (6) in a threaded manner, a worm wheel (9) is fixedly connected to one end, close to the screw I (7) of the upper side and the screw I (7) of the lower side, a worm (10) is meshed with the front end of the worm wheel (9), and a belt wheel transmission component (44) is mounted at one end, far away from the pair of the worm (10) of the upper side or the lower side, the front end and the rear end of the tablet personal computer body (1) are provided with a second protection plate (12) in a penetrating mode at four corners, the first protection plate (5) and the second protection plate (12) are made of rubber materials, one ends, close to each other, of the second protection plates (12) at the front side and the rear side are fixedly connected with racks (13), one ends, close to each other, of the racks (13) are meshed with a first transmission gear (14), the first transmission gear (14) is fixedly connected to the worm (10), the rear end of the tablet personal computer body (1) is rotatably connected with a supporting seat (17), push plates (18) are symmetrically arranged on the left side and the right side of the front side of the supporting seat (17), the supporting seat (17) is attached to the push plates (18), a threaded sleeve (19) is fixedly connected to the front end of the push plate (18), a second screw rod (20) is in threaded connection with the front end of the threaded sleeve (19), a first bevel gear (21) is fixedly connected to the front end of the second screw rod (20), and the first bevel gear (21) is meshed with a second bevel gear (22), a second bevel gear (22) is fixedly connected with the worm (10), connecting rods (27) are hinged to the left side and the right side of the front end of the supporting seat (17), a sliding block (28) is hinged to the front end of each connecting rod (27), a third sliding rod (29) penetrates through each sliding block (28), vertical plates (30) are fixedly connected to the upper end and the lower end of each third sliding rod (29), the lower ends of the vertical plates (30) are fixedly connected with the tablet computer body (1), a first spring (31) is sleeved on each third sliding rod (29), a plurality of radiating holes (33) are formed in the rear end of the tablet computer body (1), blocking pieces (34) are arranged in the tablet computer body (1) corresponding to the radiating holes (33), the blocking pieces (34) are mutually attached to the radiating holes (33), a baffle (35) is fixedly connected to the front end of each blocking piece (34), a sliding sleeve (36) is penetrated through the upper side of each baffle (35), and a second spring (37) is sleeved on each baffle (35), baffle (35) lower extreme fixedly connected with stay cord (38), the other end fixedly connected with winding roll (40) of stay cord (38), winding roll (40) and worm (10) fixed connection, fixedly connected with drive gear two (41) on worm (10) middle part, the meshing of drive gear two (41) lower extreme has drive gear three (42), the inside left and right sides of panel computer body (1) all rotates and is connected with bull stick (45), fixedly mounted with bevel gear group (46) on bull stick (45) lower extreme and worm (10), bull stick (45) rotates and connects worm (10), fixedly connected with a plurality of flabellums (47) on bull stick (45), flabellum (47) upside is equipped with fall way (48), and fall way (48) inside fixed mounting has fan (49), and fall way (48) and panel computer body (1) inside laminating, the lower extreme of fall way (48) extends to the interior bottom of panel computer body (1), the left end and the right end of the tablet personal computer body (1) and the left end of the rubber plate (4) corresponding to the lifting pipe (48) are provided with ash discharge ports (50).

2. The multi-purpose tablet personal computer with the independent screen is characterized in that one ends, far away from each other, of the first screw rods (7) are fixedly connected with first bearings (8), and the other ends of the first bearings (8) are fixedly connected with the inside of the tablet personal computer body (1).

3. The multi-purpose tablet personal computer with the independent screen is characterized in that the left end and the right end of the worm (10) are fixedly connected with a second bearing (11), and one end, far away from the worm (10), of the second bearing (11) is fixedly connected with the tablet personal computer body (1).

4. The multi-purpose tablet computer with the independent screen according to claim 1, wherein one end of the rack (13) far away from the first transmission gear (14) is fixedly connected with a first limiting plate (15), a first sliding rod (16) penetrates through the first limiting plate (15), and one ends of the first sliding rods (16) far away from each other are fixedly connected with the inside of the tablet computer body (1).

5. The multi-purpose tablet personal computer with the independent screen according to claim 1, wherein a third bearing (23) is fixedly connected to the second screw rod (20), a fixing plate (24) is fixedly connected to the lower end of the third bearing (23), and the lower end of the fixing plate (24) is fixedly connected to the inner bottom end of the tablet personal computer body (1).

6. The multi-purpose tablet computer with an independent screen according to claim 1, wherein a second sliding rod (26) is fixedly connected to the front end of the pushing plate (18), a second limiting plate (25) penetrates through the second sliding rod (26), and the front end of the second limiting plate (25) is fixedly connected to the fixing plate (24).

7. The multi-purpose tablet personal computer with an independent screen according to claim 1, wherein the rear end of the vertical plate (30) is provided with a sliding groove (32) corresponding to the sliding block (28), and the sliding block (28) is slidably connected with the vertical plate (30).

8. The multi-purpose tablet personal computer with the independent screen is characterized in that a pulley (39) is arranged at the rear end in the tablet personal computer body (1) corresponding to the pull rope (38), and the pull rope (38) is attached to the surface of the pulley (39).

9. The multi-purpose tablet personal computer with the independent screen according to claim 1, wherein a rotating shaft (43) is fixedly connected to the third transmission gear (42), and the left end and the right end of the rotating shaft (43) are rotatably connected with the tablet personal computer body (1).