CN113273791A

CN113273791A - Portable schoolbag is used in research travel

Info

Publication number: CN113273791A
Application number: CN202110734944.1A
Authority: CN
Inventors: 谢维光
Original assignee: Yiwu Industrial and Commercial College
Current assignee: Yiwu Industrial and Commercial College
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-08-20

Abstract

The invention relates to the technical field of school bags and discloses a portable school bag for studying and traveling, which comprises a school bag, wherein an interlayer is fixedly arranged on the back surface of the school bag, an interlayer is arranged on the outer wall of the interlayer, and a cushion layer is arranged on the outer wall of the interlayer; the novel medical interlayer is characterized in that fixed cylinders are arranged on two sides of the interior of the interlayer, pistons are movably arranged on the inner walls of the fixed cylinders, springs are fixedly connected between the bottoms of the pistons and the inner bottom walls of the fixed cylinders, and straps are fixedly mounted at the tops of the pistons. Human body when walking, the schoolbag has a short-lived unsettled state in the foot is in the unsettled state in turn, and the spring resumes deformation and drags the piston downstream, and the piston downstream makes the air of piston below fill into main gasbag through the trachea, and main gasbag is aerifyd and is bloated the soft back of pasting the human body to can reach the function for the back massage, simultaneously, main gasbag and back contact area also littleer, be difficult for making the back perspire.

Description

Portable schoolbag is used in research travel

Technical Field

The invention relates to the technical field of school bags, in particular to a portable school bag for study and travel.

Background

The research and study travel organizes students to go out of a campus in a collective travel and centralized grocery mode according to regional characteristics, age characteristics of the students and teaching content requirements of various subjects, expands visual fields and enriches knowledge in life different from ordinary life, deepens the sense of closeness to nature and culture, increases experience on collective life modes and social public morals, inherits and develops the education ideas and the humanity spirit of traditional Chinese tourism, reading of thousands of books and moving of thousands of miles, becomes new content and new mode of quality education, and greatly improves the self-care ability, the innovation spirit and the practical ability of primary and secondary school students. During study and travel, students generally carry a schoolbag to place books and articles for daily use.

For example, Chinese patent publication numbers are: CN108851479A discloses a portable schoolbag for children studying and traveling, which comprises a backpack body, wherein a cushion and two symmetrical shoulder belts are fixed on one side of the backpack body, a carrying handle is fixed on the upper end of the backpack body, a first baffle plate fixed on the inner wall of the backpack body is arranged beside the cushion, two symmetrical first support legs are arranged between the inner wall of one side of the backpack body and the first baffle plate in a laminating manner, slide blocks are respectively fixed on the upper ends of the two sides of the first support leg, the two slide blocks are respectively arranged in a chute on the inner wall of one side of the backpack body and a chute on the first baffle plate and are connected with the first baffle plate in a sliding manner, the lower end of the first support leg penetrates through the lower wall of the backpack body and is fixed with a support leg, first magnets are respectively fixed on the two sides of the lower end of the backpack body, second magnets are respectively fixed on the two sides of the first support leg on the upper end of the support leg, a through hole is arranged at the lower end of the backpack body, a deflector rod penetrates through the through hole, the foldable table board is supported by the first supporting leg and the second supporting leg, and the table board can be used for writing and the like. The illumination lamp provides illumination.

In the above-mentioned schoolbag, although can regard schoolbag as the desk and also can provide the illumination, in the practical use we find, it still has certain shortcoming, such as:

1. the contact area between the schoolbag and the back is large, the schoolbag is completely attached to the back, sweat can easily cover the back, the back is wetted by sweat, and the schoolbag also does not have the function of back massage;

2. the ventilating effect of the contact area of the schoolbag and the back is poor, and the back cannot be ventilated, so that the back can sweat, and miliaria can be easily covered;

3. the schoolbag does not have the function of rescuing in water, students often go to water and view the schoolbag during study and travel, if the students fall into water carelessly, the traditional schoolbag cannot float automatically, and the effect of a lifesaving air bag is achieved;

4. the schoolbag does not have the function of automatically opening the umbrella when raining, a student often encounters a sudden raining condition in a study and a travel, if the student does not carry the umbrella, the student is easily wetted to catch a cold and have a fever, and the traditional schoolbag does not have the function of an umbrella and cannot shield wind and rain;

5. the schoolbag does not have the function of falling protection, students often go to mountains during study and travel, if the students fall carelessly, the traditional schoolbag cannot protect the human body, and the schoolbag plays a role of a safety buffer air bag;

based on this, we propose a portable schoolbag for studying and traveling, and hope to solve the defects in the prior art.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a portable schoolbag for studying and traveling, which has the advantages of small contact area with the back, massage function, good back ventilation effect, automatic floating when falling into water, automatic umbrella opening when raining and buffer protection when falling.

(II) technical scheme

In order to realize the purpose that the contact area with the back is small and the massage effect can be realized, the invention provides the following technical scheme: a portable schoolbag for studying and traveling comprises a schoolbag, wherein an interlayer is fixedly arranged on the back surface of the schoolbag, an interlayer is arranged on the outer wall of the interlayer, and a cushion layer is arranged on the outer wall of the interlayer;

the two sides in the interlayer are respectively provided with a fixed cylinder, the inner wall of the fixed cylinder is movably provided with a piston, a spring is fixedly connected between the bottom of the piston and the inner bottom wall of the fixed cylinder, and the top of the piston is fixedly provided with a strap;

the outer walls of the two fixed cylinders are all connected with air pipes in a through mode, the tail ends of the two air pipes are fixedly provided with main air bags, the two main air bags are arranged inside the interlayer, and exposed grooves matched with the two main air bags are further formed in the outer wall of the cushion layer.

As a preferable technical solution of the present invention, one end of the shoulder strap is fixedly installed on the top of the piston, and the other end of the shoulder strap passes through the fixed cylinder and the interlayer and is fixedly installed on the outer wall of the cushion layer.

In a preferred embodiment of the present invention, the position of the air tube attached to the fixed cylinder is located below the piston.

On the basis of the technical scheme, in order to achieve the purpose of good back ventilation effect, the invention further provides the following technical scheme: two the relative one side of main gasbag all is provided with the side bag, two the equal fixed mounting of the relative one end of side bag has the curb plate, two the curb plate slides and sets up between two closing plates, two the equal fixed mounting of closing plate is on the outer wall of interlayer.

As a preferred technical scheme of the invention, the outer wall of the cushion layer is provided with air outlet holes, and the positions of the air outlet holes correspond to the mounting positions of the two sealing plates;

elastic cotton is filled in the gap between the cushion layer and the interlayer.

On the basis of the technical scheme, in order to realize the purpose of automatic floating when falling into water, the invention also provides the following technical scheme: the bottoms of the two fixed cylinders are both connected with through pipes in a penetrating manner, first control valves are arranged inside the two through pipes, and the bottoms of the two through pipes are connected with compressed gas tanks in a penetrating manner;

the outer wall of the compressed gas tank is wrapped with an elastic rubber mat, the outer walls of the interlayer and the mat layer are respectively provided with a first tank groove and a second tank groove which are matched with the compressed gas tank, and the compressed gas tank is clamped on the inner walls of the first tank groove and the second tank groove.

As a preferred technical scheme of the present invention, a liquid sensor is further disposed inside the schoolbag, an output end of the liquid sensor is electrically connected to a controller, and an output end of the controller is electrically connected to an input end of the first control valve.

On the basis of the technical scheme, in order to realize the purpose of automatically opening the umbrella during raining, the invention also provides the following technical scheme: a vertical pipe is connected in the middle of the top of the compressed gas tank in a through mode, a second control valve is arranged inside the vertical pipe, a corrugated hose is fixedly connected to the top of the vertical pipe, a plate-shaped air bag is fixedly connected to the top of the corrugated hose, the plate-shaped air bag is arranged inside a vertical cylinder, and the vertical cylinder is arranged inside an interlayer;

the outer wall of the plate-shaped air bag is provided with an air release opening.

As a preferred technical scheme of the present invention, the top of the schoolbag is further provided with a raindrop sensor, an output end of the raindrop sensor is electrically connected with an input end of the controller, and an output end of the controller is electrically connected with an input end of the second control valve.

On the basis of the technical scheme, in order to achieve the purpose of buffer protection when falling, the invention also provides the following technical scheme: the schoolbag is characterized in that an acceleration sensor is further arranged inside the schoolbag, the output end of the acceleration sensor is electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the input ends of the first control valve and the second control valve respectively.

(III) advantageous effects

Compared with the prior art, the invention provides a portable schoolbag for studying and traveling, which has the following beneficial effects:

1. the portable schoolbag for studying and traveling is characterized in that the schoolbag is carried on the body through the straps, when a human body stands still, the straps pull the piston to enable the piston to move upwards, the spring is stretched at the moment, air in the main airbag is sucked below the piston through the air pipe, and the main airbag is attached to the back in a shriveled mode;

when the human body is walking, the schoolbag has a short-lived unsettled state in the foot is in unsettled state in turn, the spring resumes deformation and drags the piston downstream, the piston downstream makes the air of piston below fill into main gasbag through the trachea, main gasbag is aerifyd and is bloated the mild back of pasting the human body, thereby can reach the function for the back massage, and simultaneously, area of contact is also littleer if main gasbag contacts with the back, be difficult for making the back perspire, and in addition, the relative human body of the in-process schoolbag that main gasbag made a round trip to deform can produce the removal, and then make things convenient for the flow of wind, can further prevent the back perspire.

2. When the main air bag is inflated and expanded, the side air bags are also inflated and expanded, and the side air bags are inflated and expanded to enable the two side plates to be close to each other; when the main air bag loses air and is shriveled, the side air bag also loses air and is shriveled, and the side air bag loses air and is shriveled to enable the two side plates to be far away from each other;

when the two side plates are far away from each other, external wind is sucked between the two side plates through the air outlet holes, and in the process of sucking the wind, the wind flows through the back of a human body to play a certain ventilation role; when two curb plates were close to each other, the air between two curb plates was discharged through the venthole by the extrusion, and the air that the venthole was discharged blows at human back to reach excellent ventilation effect, prevent that the back from perspiring.

3. When students fall into water, a liquid sensor in the schoolbag detects that the water falling state can be opened by a first control valve through a controller, the first control valve opens compressed gas in a compressed gas tank and can be filled into a fixed cylinder through a through pipe, the fixed cylinder is filled with the compressed gas, on one hand, the piston is pushed to move upwards until the piston moves to the top of the fixed cylinder, and on the other hand, the compressed gas can be filled into a main gas bag through a gas pipe, so that the main gas bag is expanded to the maximum state, and larger buoyancy is generated;

when the piston moved to the top of fixed cylinder, the braces was also in very loose state, and the schoolbag can be relaxed this moment take off from the back, and the schoolbag back of taking off is holding the schoolbag alright with floating out of the water, played the effect of "lifesaving gasbag", made things convenient for the student to fall into water the time save oneself, the security is higher.

4. This study travel is with portable schoolbag, when raining, the raindrop sensor at schoolbag top detects the raining condition and can open through controller control second control valve, and the second control valve is opened compressed gas in the compressed gas jar and can be filled into corrugated hose and platelike gasbag through the standpipe, fills into compressed gas in the corrugated hose and its can rise gradually and stretch out from the riser, fills into compressed gas in the platelike gasbag and its can expand gradually, forms platelike form in human top, plays the effect of "umbrella", can prevent that the student from being drenched and the flu from having a fever.

5. This study travel is with portable schoolbag, when the student falls, acceleration sensor detects the transient acceleration and excessively can open through first control valve of controller control and second control valve, and the expansion of main gasbag to maximum state is opened to first control valve, and the plate gasbag is opened to the second control valve and is bloated and stretch into platelike, utilizes expanded main gasbag and plate gasbag, can play excellent buffering guard action, reduces the injury that the human body received, further improvement the security.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a perspective view of a sandwich portion of the present invention;

FIG. 4 is a cross-sectional view of a stationary barrel and a vertical barrel portion of the present invention;

FIG. 5 is a perspective view of a barrier portion of the present invention;

FIG. 6 is a perspective view of a backing layer portion of the present invention;

FIG. 7 is a schematic view of a folded state of the plate-shaped airbag according to the present invention;

FIG. 8 is a schematic view showing a deployed state of the plate-shaped airbag according to the present invention;

FIG. 9 is a schematic view of a liquid sensor control system of the present invention;

FIG. 10 is a schematic view of a raindrop sensor control system of the present invention;

fig. 11 is a schematic diagram of an acceleration sensor control system according to the present invention.

In the figure: 1. a bag; 2. an interlayer; 3. an interlayer; 4. a cushion layer; 5. a harness; 6. a fixed cylinder; 7. a piston; 8. a spring; 9. an air tube; 10. a main airbag; 11. exposing the groove; 12. a lateral sac; 13. a side plate; 14. a sealing plate; 15. an air outlet; 16. pipe passing; 17. a first control valve; 18. a compressed gas tank; 19. a first tank; 20. a second tank; 21. a vertical tube; 22. a second control valve; 23. a corrugated hose; 24. a plate-shaped air bag; 25. a vertical cylinder; 26. a liquid sensor; 27. a raindrop sensor; 28. an acceleration sensor.

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. 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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows:

referring to fig. 1-4, a portable schoolbag for studying and traveling comprises a schoolbag 1, wherein an interlayer 2 is fixedly arranged on the back surface of the schoolbag 1, an interlayer 3 is arranged on the outer wall of the interlayer 2, and a cushion layer 4 is arranged on the outer wall of the interlayer 3;

both sides of the interior of the interlayer 2 are provided with fixed cylinders 6, the inner wall of each fixed cylinder 6 is movably provided with a piston 7, a spring 8 is fixedly connected between the bottom of each piston 7 and the inner bottom wall of each fixed cylinder 6, the top of each piston 7 is fixedly provided with a back belt 5, one end of each back belt 5 is fixedly arranged on the top of each piston 7, and the other end of each back belt 5 penetrates through the fixed cylinders 6 and the interlayer 2 and is fixedly arranged on the outer wall of the cushion layer 4;

the outer walls of the two fixed cylinders 6 are both connected with air pipes 9 in a through mode, the installation positions of the air pipes 9 on the fixed cylinders 6 are located below the pistons 7, the tail ends of the two air pipes 9 are both fixedly provided with main air bags 10, the two main air bags 10 are both arranged inside the interlayer 3, and the outer wall of the cushion layer 4 is also provided with exposed grooves 11 matched with the two main air bags 10;

the schoolbag 1 is carried on the body through the braces 5, when a human body stands still, the braces 5 pull the piston 7 to enable the piston 7 to move upwards, the spring 8 is stretched, air in the main air bag 10 is sucked below the piston 7 through the air pipe 9, and the main air bag 10 is attached to the back in a dry and shriveled mode;

when the human body is walking, schoolbag 1 has a short-lived unsettled state in the foot is in the unsettled state in turn, schoolbag 1 is when unsettled state, spring 8 resumes deformation and drags piston 7 downstream, piston 7 downstream makes the air of piston 7 below fill into main gasbag 10 through trachea 9, main gasbag 10 is aerifyd and is bloated the soft back of pasting to the human body, thereby can reach the function for the back massage, simultaneously, main gasbag 10 is also littleer with the back area of contact if contact, be difficult for making the back perspire, in addition, main gasbag 10 makes a round trip the in-process schoolbag 1 of deformation and can produce the removal relatively the human body, and then make things convenient for the flow of wind, can further prevent the back perspire.

Example two:

referring to fig. 1-6, on the basis of the first embodiment, the opposite sides of the two main air bags 10 are respectively provided with a side bag 12, the opposite ends of the two side bags 12 are respectively fixedly provided with a side plate 13, the two side plates 13 are slidably arranged between the two sealing plates 14, and the two sealing plates 14 are respectively fixedly arranged on the outer wall of the partition 3;

the outer wall of the cushion layer 4 is provided with an air outlet hole 15, and the opening position of the air outlet hole 15 corresponds to the mounting position of the two sealing plates 14;

when the main airbag 10 inflates and swells, the side airbag 12 inflates and swells, and the side airbag 12 inflates and swells to enable the two side plates 13 to be close to each other; when the main air bag 10 loses qi and is deflated, the side air bag 12 also loses qi and is deflated, and the side air bag 12 loses qi and is deflated to enable the two side plates 13 to be far away from each other;

when the two side plates 13 are far away from each other, external wind is sucked between the two side plates 13 through the air outlet holes 15, and in the process of sucking the wind, the wind flows through the back of a human body to play a certain ventilation role; when the two side plates 13 approach each other, air between the two side plates 13 is extruded and discharged through the air outlet holes 15, and the air discharged from the air outlet holes 15 is blown to the back of the human body, so that an excellent ventilation effect is achieved, and back sweating is prevented;

the elastic cotton is filled in the gap between the cushion layer 4 and the interlayer 3, so that no gap exists between the cushion layer 4 and the interlayer 3, and the schoolbag 1 is more comfortable to carry.

Example three:

referring to fig. 1, 2, 3, 4, 5, 6 and 9, on the basis of the first and second embodiments, the bottoms of the two fixed cylinders 6 are both connected with a through pipe 16 in a penetrating manner, the insides of the two through pipes 16 are both provided with a first control valve 17, and the bottoms of the two through pipes 16 are connected with a compressed gas tank 18 in a penetrating manner;

the outer wall of the compressed gas tank 18 is wrapped with an elastic rubber mat, the outer walls of the interlayer 3 and the cushion layer 4 are respectively provided with a first tank groove 19 and a second tank groove 20 which are matched with the compressed gas tank 18, the compressed gas tank 18 is clamped on the inner walls of the first tank groove 19 and the second tank groove 20, the compressed gas tank 18 wrapped with the elastic rubber mat extends out of the first tank groove 19 and the second tank groove 20, the waist of a human body can be just supported, and the schoolbag 1 is more comfortable when being carried;

a liquid sensor 26 is further arranged inside the schoolbag 1, the output end of the liquid sensor 26 is electrically connected with a controller, and the output end of the controller is electrically connected with the input end of the first control valve 17;

when a student falls into water, the liquid sensor 26 in the schoolbag 1 detects that the water falling state can be opened by controlling the first control valve 17 through the controller, the first control valve 17 opens the compressed gas in the compressed gas tank 18 and can be filled into the fixed cylinder 6 through the through pipe 16, on one hand, the piston 7 can be pushed to move upwards by filling the compressed gas into the fixed cylinder 6 until the piston 7 moves to the top of the fixed cylinder 6, on the other hand, the compressed gas can be filled into the main gasbag 10 through the gas pipe 9, so that the main gasbag 10 is expanded to the maximum state, and a large buoyancy force is generated;

when the piston 7 moves to the top of the fixed cylinder 6, the braces 5 are also in a very loose state, at the moment, the schoolbag 1 can be easily taken down from the back, and after the schoolbag 1 is taken down, the schoolbag 1 can be floated out of the water surface by holding, so that the effect of a 'life-saving air bag' is achieved, the self-rescue when a student falls into water is facilitated, and the safety is higher.

Example four:

referring to fig. 7, 8 and 10, on the basis of the first, second and third embodiments, a vertical pipe 21 is connected to the middle of the top of the compressed gas tank 18, a second control valve 22 is disposed inside the vertical pipe 21, a corrugated hose 23 is fixedly connected to the top of the vertical pipe 21, a plate-shaped air bag 24 is fixedly connected to the top of the corrugated hose 23, the plate-shaped air bag 24 is disposed inside a vertical tube 25, and the vertical tube 25 is disposed inside the interlayer 2;

the top of the schoolbag 1 is also provided with a raindrop sensor 27, the output end of the raindrop sensor 27 is electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the input end of the second control valve 22;

when raining, the raindrop sensor 27 at the top of the schoolbag 1 detects that the raining condition is opened through the controller to control the second control valve 22, the second control valve 22 opens the compressed gas in the compressed gas tank 18 and can be filled into the corrugated hose 23 and the plate-shaped air bag 24 through the vertical tube 21, the corrugated hose 23 is filled with the compressed gas which can gradually rise and extend out of the vertical tube 25, the plate-shaped air bag 24 is filled with the compressed gas which can gradually expand, a plate-shaped form is formed above a human body, the umbrella-shaped air bag has the function of an umbrella, and the student can be prevented from being wetted and catching a cold and getting a fever;

the outer wall of the plate-shaped air bag 24 is provided with an air release port, so that the plate-shaped air bag 24 and the corrugated hose 23 can be conveniently released, and after the air release, the plate-shaped air bag 24 and the corrugated hose 23 can be stored in the vertical cylinder 25 again.

Example five:

referring to fig. 11, on the basis of the first embodiment, the second embodiment, the third embodiment and the fourth embodiment, an acceleration sensor 28 is further disposed inside the bag 1, an output end of the acceleration sensor 28 is electrically connected to an input end of a controller, and an output end of the controller is electrically connected to input ends of the first control valve 17 and the second control valve 22, respectively;

when the student falls from the eminence, acceleration sensor 28 detects that instantaneous acceleration is too big can open through first control valve 17 of controller control and second control valve 22, and the inflation of main gasbag 10 to the biggest state is opened to first control valve 17, and second control valve 22 is opened the slabby gasbag 24 and is bloated and stretch into slabby, utilizes expanded main gasbag 10 and slabby gasbag 24, can play excellent buffering guard action, reduce the injury that the human body received, further improvement the security.

The working principle and the using process of the invention are as follows:

when a human body walks, the schoolbag 1 in the foot part alternatively has a transient suspended state, when the schoolbag 1 is in the suspended state, the spring 8 restores to deform and pulls the piston 7 to move downwards, the piston 7 moves downwards to enable air below the piston 7 to be filled into the main airbag 10 through the air pipe 9, and the main airbag 10 is inflated to bulge out and flexibly stick to the back of the human body, so that the back massage function can be achieved, meanwhile, the contact area of the main airbag 10 and the back is smaller, the back is not prone to sweat, and the schoolbag 1 can move relative to the human body in the process of back-and-forth deformation of the main airbag 10, so that wind can flow conveniently, and the back can be further prevented from sweating;

when the piston 7 moves to the top of the fixed cylinder 6, the braces 5 are in a loose state, the schoolbag 1 can be taken down from the back easily, and the schoolbag 1 can float out of the water surface by holding the schoolbag 1 after being taken down, so that a life-saving air bag effect is realized, the self rescue of students when falling into water is facilitated, and the safety is higher;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A portable schoolbag for study and travel comprises a schoolbag (1) and is characterized in that: an interlayer (2) is fixedly arranged on the back surface of the schoolbag (1), an interlayer (3) is arranged on the outer wall of the interlayer (2), and a cushion layer (4) is arranged on the outer wall of the interlayer (3);

both sides of the interior of the interlayer (2) are provided with fixed cylinders (6), the inner walls of the fixed cylinders (6) are movably provided with pistons (7), springs (8) are fixedly connected between the bottoms of the pistons (7) and the inner bottom wall of the fixed cylinders (6), and the tops of the pistons (7) are fixedly provided with straps (5);

the outer walls of the two fixed cylinders (6) are all connected with air pipes (9) in a through mode, the tail ends of the two air pipes (9) are fixedly provided with main air bags (10), the two main air bags (10) are arranged inside the interlayer (3), and exposed grooves (11) matched with the two main air bags (10) are further formed in the outer wall of the cushion layer (4).

2. The portable schoolbag for studying and traveling of claim 1, further comprising: one end of the strap (5) is fixedly arranged at the top of the piston (7), and the other end of the strap (5) penetrates through the fixed cylinder (6) and the interlayer (2) and is fixedly arranged on the outer wall of the cushion layer (4).

3. A portable bag for studying and traveling as claimed in claim 2, wherein: the installation position of the air pipe (9) on the fixed cylinder (6) is positioned below the piston (7).

4. A portable bag for studying and traveling as claimed in claim 3, wherein: two one side that main gasbag (10) are relative all is provided with side bag (12), two the equal fixed mounting in the one end that side bag (12) are relative has curb plate (13), two curb plate (13) slide and set up between two closing plate (14), two closing plate (14) are equal fixed mounting on the outer wall of interlayer (3).

5. The portable schoolbag for studying and traveling of claim 4, wherein: the outer wall of the cushion layer (4) is provided with air outlet holes (15), and the positions of the air outlet holes (15) correspond to the mounting positions of the two sealing plates (14);

elastic cotton is filled in the gap between the cushion layer (4) and the interlayer (3).

6. The portable schoolbag for studying and traveling of claim 5, wherein: the bottoms of the two fixed cylinders (6) are respectively communicated with a through pipe (16), the insides of the two through pipes (16) are respectively provided with a first control valve (17), and the bottoms of the two through pipes (16) are respectively communicated with a compressed gas tank (18);

the outer wall of compressed gas jar (18) is wrapped up in and is provided with the elastic rubber mat, the outer wall of interlayer (3) and bed course (4) seted up respectively with compressed gas jar (18) assorted first jar groove (19) and second jar groove (20), compressed gas jar (18) card is established on the inner wall of first jar groove (19) and second jar groove (20).

7. The portable schoolbag for studying and traveling of claim 6, wherein: the schoolbag is characterized in that a liquid sensor (26) is further arranged inside the schoolbag (1), the output end of the liquid sensor (26) is electrically connected with a controller, and the output end of the controller is electrically connected with the input end of the first control valve (17).

8. The portable schoolbag for studying and traveling of claim 7, wherein: a vertical pipe (21) is connected in the middle of the top of the compressed gas tank (18) in a penetrating manner, a second control valve (22) is arranged inside the vertical pipe (21), a corrugated hose (23) is fixedly connected to the top of the vertical pipe (21), a plate-shaped air bag (24) is fixedly connected to the top of the corrugated hose (23), the plate-shaped air bag (24) is arranged inside a vertical cylinder (25), and the vertical cylinder (25) is arranged inside the interlayer (2);

the outer wall of the plate-shaped air bag (24) is provided with an air release opening.

9. The portable schoolbag for studying and traveling of claim 8, wherein: the top of schoolbag (1) still is provided with raindrop sensor (27), the output of raindrop sensor (27) and the input electric connection of controller, the output of controller and the input electric connection of second control valve (22).

10. A portable bag for studying and traveling as claimed in claim 9, wherein: the schoolbag is characterized in that an acceleration sensor (28) is further arranged inside the schoolbag (1), the output end of the acceleration sensor (28) is electrically connected with the input end of a controller, and the output end of the controller is electrically connected with the input ends of a first control valve (17) and a second control valve (22) respectively.