CN109144174B

CN109144174B - Portable computer

Info

Publication number: CN109144174B
Application number: CN201810731151.2A
Authority: CN
Inventors: 黄珍; 毕传林; 潘丹
Original assignee: Jiujiang Vocational and Technical College
Current assignee: Jiujiang Vocational and Technical College
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2020-06-05
Anticipated expiration: 2038-07-05
Also published as: CN109144174A

Abstract

A portable computer comprises a box body with an open top, wherein two groups of guide groove groups are respectively formed in the inner walls of the front end and the rear end of the box body, each guide groove group is composed of two guide grooves, a guide block is arranged in each guide groove in a matched mode, four guide blocks in each guide groove group are fixedly connected through a horizontal support plate, a display placing box with the open top is fixedly installed on the top surface of a support plate, a case with the open top is fixedly installed on the top surface of another support plate, and a square groove is formed in the inner wall of the bottom end of the box body. Through two different extensions or the shrink of telescopic link that are located same rectangular inslot, can make two horizontal plates different in the removal position of square inslot, and then can make one of them pivot rotatory or make two pivots simultaneously rotatory simultaneously to make a backup pad reciprocate or two backup pads reciprocate simultaneously according to different needs, the selection is various, and in use is more convenient.

Description

Portable computer

Technical Field

The invention belongs to the technical field of computers, and particularly relates to a portable computer.

Background

At present, when transporting desktop computers, a plurality of people are required to respectively carry part of components of the desktop computers to move, manpower is wasted, or the desktop computers are placed on a trolley to be transported, and the trolley is also required to be assisted by others in transportation, so that the components of the desktop computers are prevented from sliding down and being damaged, and the desktop computers are inconvenient to carry and transport.

Disclosure of Invention

The invention provides a portable computer, which is used for solving the defects in the prior art.

The invention is realized by the following technical scheme:

a portable computer comprises a box body with an opening at the top, wherein two groups of guide groove groups are respectively arranged on the inner walls of the front end and the rear end of the box body, each group of guide groove groups consists of two guide grooves, a guide block is arranged in each guide groove in a matched mode, four guide blocks in each group of guide groove groups are fixedly connected through a horizontal support plate, a display placing box with an opening at the top is fixedly arranged on the top surface of one support plate, a case placing box with an opening at the top is fixedly arranged on the top surface of the other support plate, a square groove is arranged on the inner wall of the bottom end of the box body, vertical rotating shafts are movably arranged on two sides of the inner wall of the bottom end of the square groove through bearings respectively, two fixing rods are fixedly arranged at the top end of each rotating shaft, the two fixing rods fixedly connected with the same rotating shaft are symmetrically distributed by taking the rotating shaft as the center, the fixing rods are positioned above the, the front end and the rear end of the inner wall of the bottom end of the box body are respectively provided with a sliding groove, the other ends of every two connecting rods positioned on the same side of the same supporting plate are hinged through a horizontal rod, the front end and the rear end of the bottom edge of each horizontal rod are respectively and fixedly provided with a sliding block, each sliding block can be inserted into a corresponding sliding groove, each rotating shaft is positioned between two adjacent horizontal rods, the opposite sides of the horizontal rods positioned on the two sides of each rotating shaft are respectively provided with a sliding groove with a T-shaped section, each T-shaped block can be inserted into a corresponding sliding groove, the inner walls of the front end and the rear end of a square groove are respectively provided with a strip groove, two horizontal telescopic rods are fixedly arranged in each strip groove, the extending directions of the two telescopic rods positioned in the same strip groove are opposite, the square groove is internally provided with two horizontal plates in a matched manner, the front end and the rear end of each horizontal plate can be inserted into the strip grooves, one side of, wherein the top surface of one horizontal plate is fixedly provided with a motor, the top end of an output shaft of the motor is fixedly provided with a horizontal first gear, the top surface of the other horizontal plate is movably provided with a vertical connecting shaft through a bearing, the top end of the connecting shaft is fixedly provided with a horizontal third gear, each rotating shaft is fixedly provided with a horizontal second gear, the second gear is positioned below the fixed rod and is positioned in a square groove, the first gear can be correspondingly engaged and matched with one second gear, the third gear can be engaged and matched with the other second gear, the output shaft of the motor is fixedly provided with a first helical gear, the first helical gear is positioned below the first gear, the connecting shaft is fixedly provided with a fourth helical gear, the fourth helical gear is positioned below the third gear, the top surfaces of the opposite sides of the two horizontal plates are respectively and fixedly provided with a fixed block, the top end of each fixed block is matched and provided with a ball bearing, and the, a horizontal sleeve is fixedly arranged on the inner wall of the inner ring of one ball bearing, a horizontal guide rod is fixedly arranged on the inner wall of the inner ring of the other ball bearing, the guide rod can be inserted into the sleeve, slots are respectively arranged on the inner walls of the upper end and the lower end of the sleeve, strip-shaped insert blocks are respectively fixedly arranged on the upper edge and the lower edge of the guide rod, each insert block can be inserted into a corresponding slot, a vertical second helical gear is fixedly arranged at one end of the sleeve, the second helical gear can be meshed and matched with a corresponding fourth helical gear, a vertical third helical gear is fixedly arranged at one end of the guide rod, the third helical gear can be meshed and matched with a corresponding first helical gear, a plurality of universal wheels are movably arranged at the bottom end of the box body, a through slot is arranged on one side of the box body, horizontal slots are respectively arranged on the inner walls of the front end and the rear end of the box body, the horizontal slots are positioned above the box, the front end and the rear end of the movable plate can be respectively inserted into the horizontal groove, and one end of the movable plate can penetrate through the through groove.

As above mentioned portable computer, the display place the box top surface around both ends set up the recess that the cross-section is the dovetail respectively, every recess fit is equipped with two movable blocks that the cross-section is the dovetail, be located the display and place between the box with every two movable blocks of one end through a shielding plate fixed connection, the shielding plate is located the display and places the box top, the movable block is located shielding plate one side.

According to the portable computer, the inner walls of the front end and the rear end of the display placing box are respectively and fixedly provided with one group of spring groups, each group of spring groups consists of a plurality of springs, and opposite ends of the two groups of spring groups are fixedly connected through the vertical buffer plate.

According to the portable computer, the handle is fixedly arranged at one end of the movable plate.

According to the portable computer, the other end of the movable plate is fixedly provided with the vertical limiting block, and the diameter of the limiting block is larger than that of the through groove.

According to the portable computer, the push rod is fixedly arranged on the outer wall of the other side of the box body.

The invention has the advantages that: the movable plate is pulled outwards to expose the top opening of the box body, then the telescopic rod is extended and fixedly connected with the horizontal plates, the two horizontal plates are pushed to move towards two sides of the square groove respectively, so that the first gear is meshed and matched with one second gear, the third gear is meshed and matched with the other second gear, the first gear and the first helical gear are fixedly arranged on an output shaft of a motor, the motor can rotate to drive the first gear and the first helical gear to rotate, further the second gear can be driven to rotate, the second gear is fixedly connected with the rotating shaft, and further one of the rotating shafts can rotate; the first helical gear is meshed with the third helical gear to drive the guide rod to rotate, the upper side and the lower side of the guide rod are respectively provided with an insertion block, the guide rod is inserted into the sleeve, the insertion block is inserted into the insertion slot, the guide rod rotates to enable the sleeve to rotate, one end of the sleeve is provided with the second helical gear, the second helical gear is meshed with the fourth helical gear, the sleeve rotates to enable the second helical gear and the fourth helical gear to rotate, the fourth helical gear is fixedly connected with the connecting shaft to enable the connecting shaft to rotate, the top end of the connecting shaft is provided with the third gear, the third gear is meshed with the other second gear to enable the other second gear to rotate, and even if the other rotating shaft rotates; the rotating shaft is fixedly connected with the fixed rod, the fixed rod is hinged with the T-shaped block, the T-shaped block is positioned in the sliding groove, the rotating shaft can enable the fixed rod to rotate by taking the rotating shaft as a center, the T-shaped block is enabled to move in the sliding groove, the horizontal rods positioned on two sides of the same rotating shaft are enabled to move in opposite directions, the horizontal rods are hinged with the supporting plate through the connecting rods, the sliding blocks are installed at the front end and the rear end of the supporting plate and inserted into the sliding grooves, the connecting rods can be gradually changed into a vertical state, the supporting plate is jacked upwards, the display placing box and the case placing box are exposed out of the box body, and then the display and the host are placed; after the display and the host are placed in the box, the motor rotates reversely, so that the support plate moves downwards to drive the display placing box and the case placing box to move downwards, and then the box body can be pushed to move through the universal wheels; when the display and the host need to be used, the display and the host can be taken out firstly, then the movable plate is pushed inwards, the top opening of the box body is shielded, the display and the host are placed on the movable plate, and the movable plate and the box body can serve as a desk to be used without specially searching for the desk. The movable display and the host can be driven by a single person to move simultaneously, labor is saved and convenience is brought to the movement, the display and the host can be protected in the transportation process, the display and the host are prevented from being damaged due to collision, the display and the host can be directly placed on the movable plate when the display and the host need to be used, the movable plate and the box body can be used as a table, other supporting devices do not need to be specially searched, the functions are diversified, and the use is more convenient. The T-shaped block is matched with the sliding groove with the T-shaped section, the T-shaped block can be limited, the T-shaped block is prevented from moving out of the sliding groove, and the structure is more stable. Through two different extensions or the shrink of telescopic link that are located same rectangular inslot, can make two horizontal plates different in the removal position of square inslot, and then can make one of them pivot rotatory or make two pivots simultaneously rotatory simultaneously to make a backup pad reciprocate or two backup pads reciprocate simultaneously according to different needs, the selection is various, and in use is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a view of A of FIG. 1; FIG. 3 is a view of B of FIG. 2; FIG. 4 is an enlarged view of a cross-sectional view taken along line C-C of FIG. 3; FIG. 5 is an enlarged partial view of I of FIG. 3; fig. 6 is a view in the direction D of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A portable computer comprises a box body 1 with an open top as shown in the figure, wherein the inner walls of the front end and the rear end of the box body 1 are respectively provided with two groups of guide groove groups 2, each group of guide groove group 2 consists of two guide grooves, each guide groove is internally provided with a guide block 3 in a matching way, four guide blocks 3 in each group of guide groove group 2 are fixedly connected through a horizontal support plate 4, one support plate 4 is fixedly provided with a display placing box 5 with an open top, the top surface of the other support plate 4 is fixedly provided with a case placing box 6 with an open top, the inner wall of the bottom end of the box body 1 is provided with a square groove 7, two sides of the inner wall of the bottom end of the square groove 7 are respectively and movably provided with a vertical rotating shaft 8 through bearings, the top end of each rotating shaft 8 is fixedly provided with two fixed rods 9, the two fixed rods 9 fixedly connected with the same rotating shaft 8 are symmetrically, one end of each fixed rod 9 is hinged with a T-shaped block 10, four corners of the bottom surface of each supporting plate 4 are respectively hinged with one end of a connecting rod 11, the front end and the rear end of the inner wall of the bottom end of the box body 1 are respectively provided with a sliding groove 12, the other ends of each two connecting rods 11 positioned on the same side of the same supporting plate 4 are hinged with each other through a horizontal rod 13, the front end and the rear end of the bottom edge of each horizontal rod 13 are respectively fixedly provided with a sliding block 14, each sliding block 14 can be inserted into a corresponding sliding groove 12, each rotating shaft 8 is positioned between two adjacent horizontal rods 13, each two adjacent horizontal rods 13 positioned on the same rotating shaft 8 are respectively positioned below the bottom surface of the same supporting plate 4, the opposite edges of the horizontal rods 13 positioned on two sides of one rotating shaft 8 are respectively provided with a sliding groove 15 with a T-shaped section, each T-shaped block 10 can be inserted into a corresponding sliding groove 15, two horizontal telescopic rods 17 are fixedly arranged in each long groove 16, the extension directions of the two telescopic rods 17 in the same long groove 16 are opposite, the extension directions of the two telescopic rods 17 at the same end of the square groove 7 are the same, two horizontal plates 18 are arranged in the square groove 7 in a matching way, the front end and the rear end of each horizontal plate 18 can be respectively inserted into the long grooves 16, one side of each horizontal plate 18 is fixedly connected with the end part of the movable rod of each two telescopic rods 17 at the same end of the square groove 7, a motor 19 is fixedly arranged on the top surface of one horizontal plate 18, a horizontal first gear 20 is fixedly arranged at the top end of an output shaft of the motor 19, a vertical connecting shaft 43 is movably arranged on the top surface of the other horizontal plate 18 through a bearing, a horizontal third gear 44 is fixedly arranged at the top end of the connecting shaft 43, a horizontal second gear 21 is fixedly arranged on each rotating shaft 8, and the second gear 21 is positioned, the second gear 21 is positioned in the square groove 7, the first gear 20 can be correspondingly engaged with one second gear 21, the third gear 44 can be engaged with the other second gear 21, the first helical gear 22 is fixedly installed on the output shaft of the motor 19, the first helical gear 22 is positioned below the first gear 20, the fourth helical gear 45 is fixedly installed on the connecting shaft 43, the fourth helical gear 45 is positioned below the third gear 44, the fixing blocks 23 are respectively fixedly installed on the top surfaces of the opposite sides of the two horizontal plates 18, the top end of each fixing block 23 is matched and provided with a ball bearing 24, the outer ring outer wall of each ball bearing 24 is fixedly connected with the fixing block 23, the inner ring inner wall of one ball bearing 24 is fixedly provided with a horizontal sleeve 25, the inner ring inner wall of the other ball bearing 24 is fixedly provided with a horizontal guide rod 26, the guide rod 26 can be inserted into the sleeve 25, the inner walls of the upper end and the lower end of, the upper edge and the lower edge of the guide rod 26 are fixedly provided with a strip-shaped inserting block 28 respectively, each inserting block 28 can be inserted into a corresponding slot 27, one end of the sleeve 25 is fixedly provided with a vertical second bevel gear 29, the second bevel gear 29 can be meshed and matched with a corresponding fourth bevel gear 45, one end of the guide rod 26 is fixedly provided with a vertical third bevel gear 42, the third bevel gear 42 can be meshed and matched with a corresponding first bevel gear 22, the bottom end of the box body 1 is movably provided with a plurality of universal wheels 30, one side of the box body 1 is provided with a through groove 31, the inner walls of the front end and the rear end of the box body 1 are provided with horizontal grooves 32 respectively, the horizontal grooves 32 are positioned above the box body 1, one end of the horizontal grooves 32 is communicated with the inside of the through groove 31, a horizontal movable plate 33 is arranged between the two horizontal grooves 32 in a matched manner, the front end and the rear end of the movable plate 33 can be inserted into the. The movable plate 33 is pulled outwards to expose the top opening of the box body 1, then the telescopic rod 17 is extended, the telescopic rod 17 is fixedly connected with the horizontal plates 18, the two horizontal plates 18 are pushed to move towards two sides of the square groove 7 respectively, so that the first gear 20 is meshed and matched with one second gear 21, the third gear 44 is meshed and matched with the other second gear 21, the first gear 20 and the first bevel gear 22 are fixedly installed on an output shaft of the motor 19, the motor 19 can rotate to drive the first gear 20 and the first bevel gear 22 to rotate, further the second gear 21 can be driven to rotate, the second gear 21 is fixedly connected with the rotating shaft 8, and further one rotating shaft 8 can rotate; the first bevel gear 22 is engaged with the third bevel gear 42 to drive the guide rod 26 to rotate, the upper and lower sides of the guide rod 26 are respectively provided with the insertion block 28, the guide rod 26 is inserted into the sleeve 25, the insertion block 28 is inserted into the insertion slot 27, the guide rod 26 rotates to rotate the sleeve 25, one end of the sleeve 25 is provided with the second bevel gear 29, the second bevel gear 29 is engaged with the fourth bevel gear 45, the sleeve 25 rotates to rotate the second bevel gear 29 and the fourth bevel gear 45, the fourth bevel gear 45 is fixedly connected with the connecting shaft 43 to further rotate the connecting shaft 43, the top end of the connecting shaft 43 is provided with the third gear 44, the third gear 44 is engaged with the other second gear 21 to rotate the other second gear 21, even if the other rotating shaft 8 rotates; the rotating shaft 8 is fixedly connected with the fixing rod 9, the fixing rod 9 is hinged with the T-shaped block 10, the T-shaped block 10 is located in the sliding groove 15, the fixing rod 9 can rotate around the rotating shaft 8 due to the rotation of the rotating shaft 8, the T-shaped block 10 can move in the sliding groove 15, the horizontal rods 13 located on two sides of the same rotating shaft 8 can move in opposite directions, the horizontal rods 13 are hinged with the supporting plate 4 through the connecting rods 11, the sliding blocks 14 are installed at the front end and the rear end of the supporting plate 4, the sliding blocks 14 are inserted into the sliding grooves 12, the connecting rods 11 can gradually change into a vertical state, the supporting plate 4 is jacked upwards, the display placing box 5 and the case placing box 6 are exposed out of the box body 1, and then the display and the host are placed into the corresponding placing boxes; after the display and the host are placed in the box, the motor 19 rotates reversely, so that the support plate 4 moves downwards to drive the display placing box 5 and the case placing box 6 to move downwards, and then the box body 1 can be pushed to move through the universal wheels 30; when the display and the host need to be used, the display and the host can be taken out firstly, then the movable plate 33 is pushed inwards, the top opening of the box body 1 is shielded, the display and the host are placed on the movable plate 33, and at the moment, the movable plate 33 and the box body 1 can serve as a table without specially searching for the table. The movable display and the host can be driven by a single person to move simultaneously, labor is saved and convenience is brought during movement, the display and the host can be protected during transportation, the display and the host are prevented from being damaged due to collision, the display and the host can be directly placed on the movable plate 33 when the display and the host need to be used, the movable plate 33 and the box body 1 can be combined to serve as a table, other supporting devices do not need to be specially found, functions are diversified, and the use is more convenient. The T-shaped block 10 is matched with the sliding groove 15 with the T-shaped section, the T-shaped block 10 can be limited, the T-shaped block 10 is prevented from moving out of the sliding groove 15, and the structure is more stable. Through two telescopic links 17 different extensions or the shrink that are located same rectangular groove 16, can make two horizontal plates 18 the removal position difference in square inslot 7, and then can make one of them pivot 8 rotatory or make two pivot 8 simultaneously rotatory simultaneously to make a backup pad 4 reciprocate or two backup pads 4 reciprocate simultaneously according to different needs, the selection is various, and in use is more convenient.

Particularly, this embodiment the box 5 is placed to display top surface front and back both ends set up the recess 34 that the cross-section is the dovetail respectively, every recess 34 fit in is equipped with two movable blocks 35 that the cross-section is the dovetail, is located and places through a shielding plate 36 fixed connection between 5 same every two movable blocks 35 of end of box 5 to the display, shielding plate 36 is located the display and places box 5 top, movable block 35 is located shielding plate 36 one side. After placing the display in the box 5 is placed to the display, with two shielding plates 36 relative promotion, can make two shielding plates 36 place the opening of box 5 with the display and shelter from, protect the display, take out the back with the display simultaneously, say two shielding plates 36 relative movement again, can place the display on shielding plate 36, make the display place box 5 and can act as the desk and use, make its function diversified.

Specifically, the box 5 is placed to display stated in this embodiment both ends inner wall is a set of spring unit 37 of fixed mounting respectively around, and every spring unit 37 of group comprises several springs, and the looks remote site of two sets of spring units 37 is equallyd divide and is do not passed through a vertical buffer board 38 fixed connection. After the display is placed in the display placing box 5, the force generated by shaking the display in the moving process can be reduced by contacting the two buffer plates 38 with the display, the display is prevented from being damaged, and the display is protected.

Further, a handle 39 is fixedly installed at one end of the movable plate 33 according to the embodiment. A handle 39 is arranged at one end of the movable plate 33, so that the hand has better force application point when pulling the movable plate 33, the pulling is more convenient, and the use is more convenient.

Furthermore, the other end of the movable plate 33 of the present embodiment is fixedly installed with a vertical limiting block 40, and the diameter of the limiting block 40 is larger than that of the through groove 31. When the movable plate 33 is pulled outwards, the diameter of the limiting block 40 is larger than that of the through groove 31, and the movable plate 33 can be prevented from being completely pulled out of the box body 1 by the limitation of the limiting block 40, so that the movable plate 33 can be prevented from being lost.

Furthermore, a push rod 41 is fixedly installed on the outer wall of the other side of the box body 1 according to the embodiment. The push rod 41 is arranged on the outer wall of the other side of the box body 1, so that when the box body 1 is pushed to move, a hand has a better acting point, and the pushing is more convenient.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A portable computer, characterized in that: comprises a box body (1) with an open top, two groups of guide groove groups (2) are respectively arranged on the inner walls of the front end and the rear end of the box body (1), each group of guide groove groups (2) consists of two guide grooves, a guide block (3) is arranged in each guide groove in a matching way, four guide blocks (3) in each group of guide groove groups (2) are fixedly connected through a horizontal support plate (4), a display placing box (5) with an open top is fixedly arranged on the top surface of one support plate (4), a case placing box (6) with an open top is fixedly arranged on the top surface of the other support plate (4), a square groove (7) is arranged on the inner wall of the bottom end of the box body (1), two vertical rotating shafts (8) are movably arranged on two sides of the inner wall of the bottom end of the square groove (7) through bearings respectively, two fixing rods (9) are fixedly arranged on the top end of each rotating shaft (8), and the two fixing rods (9), the fixing rods (9) are positioned above the square grooves (7), one end of each fixing rod (9) is hinged with a T-shaped block (10), four corners of the bottom surface of each supporting plate (4) are respectively hinged with one end of a connecting rod (11), the front end and the rear end of the inner wall of the bottom end of the box body (1) are respectively provided with a sliding groove (12), the other ends of every two connecting rods (11) positioned on the same side of the same supporting plate (4) are hinged with each other through horizontal rods (13), the front end and the rear end of the bottom edge of each horizontal rod (13) are respectively fixedly provided with a sliding block (14), each sliding block (14) can be inserted into a corresponding sliding groove (12), each rotating shaft (8) is positioned between two adjacent horizontal rods (13), the opposite edges of the horizontal rods (13) positioned on two sides of one rotating shaft (8) are respectively provided with a sliding groove (15) with a T-shaped section, each T-shaped block (10) can be inserted into, the inner walls of the front end and the rear end of a square groove (7) are respectively provided with a long groove (16), two horizontal telescopic rods (17) are fixedly arranged in each long groove (16), the extension directions of the two telescopic rods (17) positioned in the same long groove (16) are opposite, two horizontal plates (18) are arranged in the square groove (7) in a matching way, the front end and the rear end of each horizontal plate (18) can be respectively inserted into the long grooves (16), one side of each horizontal plate (18) is fixedly connected with the end parts of the movable rods of each two telescopic rods (17) positioned at the same end of the square groove (7), a motor (19) is fixedly arranged on the top surface of one horizontal plate (18), a horizontal first gear (20) is fixedly arranged on the top end of an output shaft of the motor (19), a vertical connecting shaft (43) is movably arranged on the top surface of the other horizontal plate (18) through a bearing, and a horizontal third gear (44) is fixedly arranged on, each rotating shaft (8) is fixedly provided with a horizontal second gear (21), the second gear (21) is positioned below the fixed rod (9), the second gear (21) is positioned in the square groove (7), the first gear (20) can be correspondingly meshed with one second gear (21), the third gear (44) can be meshed with the other second gear (21), the output shaft of the motor (19) is fixedly provided with a first helical gear (22), the first helical gear (22) is positioned below the first gear (20), the connecting shaft (43) is fixedly provided with a fourth helical gear (45), the fourth helical gear (45) is positioned below the third gear (44), the top surfaces of the opposite sides of the two horizontal plates (18) are respectively and fixedly provided with a fixed block (23), the top end of each fixed block (23) is matched and provided with a ball bearing (24), the outer ring outer wall of the ball bearing (24) is fixedly connected with the fixed block (23), a horizontal sleeve (25) is fixedly installed on the inner wall of the inner ring of one ball bearing (24), a horizontal guide rod (26) is fixedly installed on the inner wall of the inner ring of the other ball bearing (24), the guide rod (26) can be inserted into the sleeve (25), slots (27) are respectively formed in the inner walls of the upper end and the lower end of the sleeve (25), strip-shaped insertion blocks (28) are respectively and fixedly installed on the upper side and the lower side of the guide rod (26), each insertion block (28) can be inserted into a corresponding slot (27), a vertical second helical gear (29) is fixedly installed at one end of the sleeve (25), the second helical gear (29) can be in meshing fit with a corresponding fourth helical gear (45), a vertical third helical gear (42) is fixedly installed at one end of the guide rod (26), the third helical gear (42) can be in meshing fit with a corresponding first helical gear (22), and a plurality of universal wheels (30) are movably installed at the bottom end of the box body (1), one side of the box body (1) is provided with a through groove (31), the inner walls of the front end and the rear end of the box body (1) are respectively provided with a horizontal groove (32), the horizontal groove (32) is positioned above the box body (1), one end of the horizontal groove (32) is communicated with the inside of the through groove (31), a horizontal movable plate (33) is arranged between the two horizontal grooves (32) in a matching manner, the front end and the rear end of the movable plate (33) can be respectively inserted into the horizontal groove (32), and one end of the movable plate (33) can penetrate through the through groove (31).

2. A portable computer as claimed in claim 1, wherein: the display place box (5) top surface front and back both ends set up recess (34) that the cross-section is the dovetail respectively, every recess (34) fit in is equipped with two movable blocks (35) that the cross-section is the dovetail, be located the display and place between per two movable blocks (35) of box (5) same end through a shielding plate (36) fixed connection, shielding plate (36) are located the display and place box (5) top, movable block (35) are located shielding plate (36) one side.

3. A portable computer as claimed in claim 1, wherein: the display place box (5) around both ends inner wall a set of spring assembly (37) of fixed mounting respectively, every spring assembly (37) of group comprises several springs, the looks remote site of two sets of spring assemblies (37) is equallyd divide and is do not passed through a vertical buffer board (38) fixed connection.

4. A portable computer as claimed in claim 1, wherein: one end of the movable plate (33) is fixedly provided with a handle (39).

5. A portable computer as claimed in claim 1, wherein: the other end of the movable plate (33) is fixedly provided with a vertical limiting block (40), and the diameter of the limiting block (40) is larger than that of the through groove (31).

6. A portable computer as claimed in claim 1, wherein: and a push rod (41) is fixedly arranged on the outer wall of one side of the box body (1).