CN214317293U - Shoulder bag - Google Patents

Abstract

The application belongs to the technical field of articles for daily use, and particularly relates to a backpack which comprises a backpack body, an airtight bag, an exhaust device and at least one shoulder strap connected to the backpack body, wherein the airtight bag is provided with an accommodating cavity for accommodating luggage, the airtight bag is arranged in the accommodating cavity, and the airtight bag is provided with an air outlet; the gas inlet of the exhaust device is communicated with the gas outlet of the airtight bag, and the exhaust device is used for exhausting gas of the airtight bag so as to compress the luggage in the airtight bag; the air exhaust device is arranged on the airtight bag or the bag body. This exhaust apparatus installs on airtight bag or box, and whole knapsack and exhaust apparatus form a whole like this, so when specifically using, only need open exhaust apparatus so can, its convenient operation has solved the vexation of looking for everywhere because of exhaust apparatus's losing, also can carry out exhaust treatment, convenient to use is swift to airtight bag anytime and anywhere.

Description

Shoulder bag

Technical Field

The application belongs to the technical field of articles for daily use, especially, relate to a knapsack.

Background

The backpack has the advantages that office work and travel are indispensable parts in daily life, the backpack is a necessary object for people to carry luggage when going out due to light weight, small volume and convenient carrying, an airtight bag is usually arranged in the backpack, and after the luggage is placed in the airtight bag, the airtight bag is vacuumized, so that the luggage in the airtight bag is compressed, the occupied space of the luggage is reduced, and the loading capacity of the backpack is improved; however, in practical use, the airtight bag is generally directly extruded manually, or the airtight bag is subjected to exhaust treatment by an external exhaust device, the former has high labor intensity and inconvenient use, the vacuum pumping effect is not good, and the latter needs to be matched with the external exhaust device for use, so that the use is convenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a knapsack aims at solving airtight bag exhaust operation in the knapsack among the prior art and has inconvenient technical problem.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a backpack comprises a backpack body, an airtight bag, an exhaust device and at least one shoulder strap connected to the backpack body, wherein the airtight bag is provided with a containing cavity for containing luggage, the airtight bag is arranged in the containing cavity, and the airtight bag is provided with an air outlet; the gas inlet of the exhaust device is communicated with the gas outlet of the airtight bag, and the exhaust device is used for exhausting gas of the airtight bag so as to compress the luggage in the airtight bag; the air exhaust device is arranged on the airtight bag or the bag body.

Optionally, when the air discharging device is installed on the airtight bag, the housing of the air discharging device is fixed on the airtight bag in a fitting or pressing manner.

Optionally, a first rubber layer covers the housing of the exhaust device, a second rubber layer covers the surface of the airtight bag, and the first rubber layer is attached to or in press fit with the second rubber layer.

Optionally, when the exhaust device is mounted on the bag body, the exhaust device is clamped or screwed on the bag body;

or the exhaust device is fixed on the bag body through a fastener;

or the shell of the exhaust device and the inclusion are integrally formed.

Optionally, the exhaust device includes a connecting pipe and a pump body, the pump body is mounted on the airtight bag or on the bag body, one end of the connecting pipe is connected with the air outlet of the airtight bag in a sealing manner, and the other end of the connecting pipe is connected with the air inlet of the pump body in a sealing manner.

Optionally, a mounting bag is fixed on the bag body, and the pump body is located in the mounting bag;

or, an installation bag is fixed on the airtight bag, and the pump body is positioned in the installation bag.

Optionally, the exhaust means is a piston pump, a vacuum pump and a pressure pump.

Optionally, the backpack further comprises a switch, the switch is disposed on the backpack body, the airtight bag or the exhaust device, and the switch is electrically connected to the exhaust device and is used for controlling the switch of the exhaust device.

Optionally, the backpack further includes an electrical interface, which is disposed on the airtight bag, the backpack body or the exhaust device, and is electrically connected to an external power source to supply power to the exhaust device.

Optionally, the backpack further comprises a power source disposed on the pack body, on the airtight bag or within the exhaust and adapted to power external electronics and/or the exhaust.

One or more technical solutions in the backpack provided by the present application have at least one of the following technical effects: when the backpack is used, the compression of the luggage is realized only by putting the luggage into the airtight bag and then starting the exhaust device to exhaust the gas in the airtight bag, so that the volume of the containing cavity occupied by the luggage is reduced, and the loading capacity of the backpack is increased; simultaneously, this exhaust apparatus installs on airtight bag or box, and whole knapsack and exhaust apparatus form a whole like this, so when specifically using, only need open exhaust apparatus so can, its convenient operation has solved the vexation of looking for everywhere because of exhaust apparatus loses, also can carry out exhaust treatment to airtight bag anytime and anywhere, and convenient to use is swift.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of an airtight bag in a backpack according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural view of the air-tight bag in the backpack provided by the second embodiment of the present application in a fully loaded state.

Fig. 3 is a schematic structural diagram of a backpack when the airtight bag provided by the sixth embodiment of the present application is in an unloaded state.

Fig. 4 is a schematic view of the structure of the airtight bag shown in fig. 3.

FIG. 5 is a schematic view of the construction of the backpack shown in FIG. 3 with the airtight bag in a fully loaded state.

Wherein, in the figures, the respective reference numerals:

1-backpack 10-body 11-opening

12-cover part 13-shoulder strap 14-handle

20-airtight bag 21-waterproof zipper 22-exhaust valve

23-stitched edge 30-exhaust device 31-pump body

32-connecting pipe 40-switch.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-5 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example one

As shown in fig. 1 to 5, in an embodiment of the present application, there is provided a backpack 1, including a backpack body 10, an airtight bag 20, an air exhaust device 30, and at least one shoulder strap 13 connected to the backpack body 10, wherein the backpack body 10 has a containing cavity (not shown) for containing luggage, the airtight bag 20 is disposed in the containing cavity, and the airtight bag 20 is provided with an air outlet; the air inlet of the air exhaust device 30 is communicated with the air outlet of the air-tight bag 20, and the air exhaust device 30 is used for exhausting the air in the air-tight bag 20 so as to compress the luggage in the air-tight bag 20; the air discharging device 30 is attached to the airtight bag 20 or the bag body 10. Wherein, as shown in connection with fig. 1, the gas exhaust device 30 may be disposed on the airtight bag 20; alternatively, as shown in fig. 3 and 5, the exhaust device 30 is mounted on the bag body 10 and is located in the accommodating cavity; or, the air-tight bag 20 and the bag body 10 are both provided with the air exhaust devices 30, so that the two sets of air exhaust devices 30 act simultaneously, and the air exhaust efficiency of the air-tight bag 20 is higher; the exhaust device 30 is located in the accommodating cavity, so that the exhaust device 30 is not exposed to influence the appearance of the whole backpack 1, and in addition, the exhaust device 30 is not contacted with external parts, so that the exhaust device 30 is prevented from being damaged.

Specifically, when the backpack 1 of the embodiment of the present application is used, only after luggage is put into the airtight bag 20, the exhaust device 30 is started to exhaust the gas in the airtight bag 20, and then the compression of the luggage can be realized, so that the volume of the containing cavity occupied by the luggage is reduced, and the loading capacity of the backpack 1 is increased; meanwhile, the exhaust device 30 is arranged on the airtight bag 20 or the bag body 10, so that the whole backpack 1 and the exhaust device 30 form a whole, when the backpack is used specifically, only the exhaust device 30 needs to be opened, the operation is convenient, the trouble of searching everywhere due to the loss of the exhaust device 30 is solved, the airtight bag 20 can be exhausted at any time and any place, and the backpack 1 is convenient and rapid to use.

In this embodiment, as shown in fig. 3 and 5, the bag body 10 is provided with an opening 11 and a covering portion 12, one side of the covering portion 12 is connected to one side of the opening 11, the other three sides of the covering portion 12 are connected to the other three sides of the opening 11 through zippers, and the opening and closing of the backpack 1 are realized through the opening and closing of the zippers, wherein, as shown in fig. 3 and 5, the opening 11 is disposed at the front side of the bag body 10, the shoulder straps 13 are mounted at the rear side of the bag body 10, the number of the shoulder straps 13 is two, and the two ends of the shoulder straps 13 are respectively connected to the top and the bottom of the rear side of the bag body 10 to form a ring, so that the shoulder of a user can conveniently penetrate through the ring to back the backpack 1; the top of the backpack body 10 is provided with a handle 14 to facilitate the user to lift the backpack 1 for movement.

In the present embodiment, as shown in fig. 2, the airtight bag 20 is further provided with a vent valve 22, and when the exhaust device 30 fails or is not powered, the vent valve 22 is opened to exhaust the gas in the airtight bag 20, thereby implementing the compression sealing of the luggage.

In the present embodiment, as shown in fig. 2, the airtight bag 20 is provided with a waterproof zipper 21, and the airtight bag 20 is opened and closed by opening and closing the waterproof zipper 21; in addition, the waterproof zipper 21 has waterproof and airtight functions, and when the waterproof zipper 21 is pulled up, the airtight bag 20 can be sealed, so that gas leakage from the waterproof zipper 21 is avoided.

In the present embodiment, as shown in fig. 3 and 4, the airtight bag 20 is provided with the sewing edge 23 on the periphery thereof, and the sewing edge 23 is sewn into the package 10, so that the airtight bag 20 can be easily attached and manufactured at low cost by the sewing connection method.

In this embodiment, the bag body 10 is provided with an exhaust hole (not shown), so that the gas pumped out by the exhaust device 30 is directly exhausted out of the backpack 1 through the exhaust hole, the exhaust of the exhaust device 30 is smoother, and the exhaust effect is better. The number of the exhaust holes can be one, two or more, and the specific number can be set according to actual needs, which is not limited herein.

In the present embodiment, the exhaust device 30 is a piston pump, a vacuum pump, and a pressure pump. Wherein, when the piston pump, the vacuum pump and the pressure pump work, the gas in the airtight bag 20 can be pumped out to realize the compression of the luggage; when the piston pump, the vacuum pump and the pressure pump do not work, the gas outside the airtight bag 20 can not enter the airtight bag 20 from the piston pump, the vacuum pump and the pressure pump, so that the airtight bag 20 is sealed, gas leakage is avoided, and the effectiveness of luggage compression is ensured.

Of course, in other embodiments, the gas-discharging device 30 can be other devices capable of discharging the gas in the gas-tight bag 20; when the exhaust device 30 does not work, and the exhaust device does not have the capability of blocking the air outside the airtight bag 20 from entering the airtight bag 20 from the exhaust device 30, a one-way valve (not shown) is arranged at the air outlet of the airtight bag 20, so that the air outside the airtight bag 20 cannot enter the airtight bag 20 through the one-way valve, the airtight bag 20 is sealed, air leakage is avoided, and the effectiveness of luggage compression is ensured.

In the present embodiment, as shown in fig. 1 and fig. 2, the backpack 1 further includes a switch 40, the switch 40 is disposed on the backpack body 10, the airtight bag 20 or the air discharging device 30, and the switch 40 is electrically connected to the air discharging device 30 and is used for controlling the switch 40 of the air discharging device 30. When the air-tight bag 20 is used, the switch 40 is directly pressed to open and close the air exhaust device 30, so that the control of the switch 40 for exhausting air of the air-tight bag 20 is realized, and the air exhaust operation is simpler, more convenient and quicker.

In this embodiment, the backpack 1 further includes an electrical interface (not shown) disposed on the airtight bag 20, the backpack body 10 or the exhaust device 30 and configured to be electrically connected to an external power source to supply power to the exhaust device 30. When the exhaust device 30 is used, the external power supply is plugged in the electrical interface through the power line, so that the external power supply is electrically conducted with the exhaust device 30, and the exhaust device 30 is electrically supported. Wherein, external power source can be parts such as battery, treasured and supply socket charge, and the electrical property interface can be USB interface, micro USB interface, Type-c interface, 30pin interface or lightning interface.

Preferably, the electrical interface is disposed on the bag body 10 and exposed outside the bag body 10, so that the power supply of the exhaust device 30 can be realized without opening the bag body 10, and the use is more convenient.

In this embodiment, the backpack 1 further comprises a power source (not shown) disposed on the backpack body 10, on the airtight bag 20 or in the exhaust device 30, and used to supply power to external electronic devices and/or the exhaust device 30. The power supply can supply power to the exhaust device 30, so that an external power supply is not needed when the exhaust device is used, and the exhaust device is more flexible and convenient to use; the power supply can also supply power to external electronic equipment (such as a mobile phone, a charger, a tablet computer or a game machine), so that the backpack 1 has more various functions, can meet more requirements of users and has stronger practicability. Of course, the power source may have the capability of providing power to both the exhaust 30 and to external electronic equipment.

Preferably, the power source is provided inside the exhaust device 30, so that a separate fixing of the power source is not required and the manufacturing thereof is simpler.

Example two

The backpack 1 of the present embodiment differs from the first embodiment in that: as shown in fig. 2, when the air vent device 30 is mounted on the air-tight bag 20, the housing of the air vent device 30 is fixed on the air-tight bag 20 by fitting or pressing. Specifically, during manufacturing, the shell of the exhaust device 30 is directly fixed on the airtight bag 20 in a laminating or pressing mode, so that the exhaust device 30 is fixed on the airtight bag 20, the manufacturing mode is simple, and the airtight bag 20 and the exhaust device 30 are directly combined into a whole, so that the structure is simpler, and the practicability is better; more specifically, the housings of the exhaust device 30 may be joined together by means of press-fitting, hot-pressing, gluing or injection molding.

Further, the air inlet on the housing of the air discharging device 30 is directly opposite to the air outlet on the air-tight bag 20, that is, the air discharging device 30 is directly attached to or pressed on the air outlet on the air-tight bag 20, so that there is no need to provide other connecting components, the structure is simpler, and of course, in other embodiments, the air discharging device 30 is directly attached to or pressed beside the air outlet on the air-tight bag 20, and the specific structure can be selected according to actual situations.

In this embodiment, the housing of the exhaust device 30 is covered with a first rubber layer (not shown), and the surface of the airtight bag 20 is covered with a second rubber layer (not shown), and the first rubber layer is attached to or press-fit with the second rubber layer. Specifically, the surface of the airtight bag 20 and the housing are covered with a rubber layer, i.e. a second rubber layer and a first rubber layer, respectively, and after the second rubber layer and the first rubber layer are attached or pressed, the second rubber layer and the first rubber layer can be stably connected together due to the same material property, so that the exhaust device 30 can be stably fixed on the airtight bag 20, and the phenomenon that the exhaust device 30 falls off due to the fact that the housing is attached to the surface material of the airtight bag 20 or the press connection is not firm, and the use effect and the service life are affected is avoided.

Further, the airtight bag 20 comprises a cloth layer and a second rubber layer covered on the cloth layer, and the second rubber layer has waterproof and airtight properties, so that the waterproof and airtight properties of the airtight bag 20 are realized; in specific application, the second rubber layer can be attached to and pressed on the surface of the fabric layer, and the fabric layer and the second rubber layer are tightly connected into a whole, so that the structural strength is good; in addition, the material of the second rubber layer can be melted to form liquid, and then the liquid is poured on the surface of the cloth layer to be solidified, so that a second rubber layer is formed on the surface of the cloth layer, the cloth layer and the second rubber layer are tightly connected into a whole, and the structural strength of the cloth layer is better.

Further, the shell of the exhaust device 30 is usually made of hard plastic, and the hard plastic is difficult to connect with the second rubber layer on the surface of the airtight bag 20, and after the connection, the connection reliability between the two is also poor, and after the surface of the shell of the backpack 1 of the embodiment is covered with the first rubber layer, because the material properties of the first rubber layer and the second rubber layer are the same, the two can be stably connected together, so that the exhaust device 30 can be stably fixed on the airtight bag 20, and the phenomenon that the exhaust device 30 falls off due to the fact that the shell is attached to the surface material of the airtight bag 20 or the press connection is not firm, which affects the use effect and the service life is avoided.

Further, the first rubber layer and the second rubber layer are both TPU layers, the first rubber layer and the second rubber layer are both made of TPU (Thermoplastic polyurethane elastomer) materials, the TPU materials are environment-friendly and non-toxic materials, so when the airtight bag 20 is applied to the backpack 1, the airtight bag 20 is safe and effective and cannot hurt a human body, and in addition, the waterproof and airtight performance of the TPU materials is utilized, so that the airtight space is sealed, and the airtight and waterproof performance of the airtight space is ensured.

Further, the first rubber layer and the second rubber layer are both PE layers, specifically, the first rubber layer and the second rubber layer are both made of PE (polyethylene) materials, and the waterproof and airtight performance of the PE materials is utilized, so that the sealed space is sealed, and the airtight and waterproof performance of the sealed space is guaranteed.

Further, the first rubber layer and the second rubber layer are both PPC layers, specifically, the first rubber layer and the second rubber layer are both made of PPC (Poly propylene carbonate) materials, and the waterproof and airtight performance of the PPC materials is utilized, so that a sealed space is sealed, and the airtight and waterproof performance of the sealed space is guaranteed.

Further, the first rubber layer and the second rubber layer are both PA layers; specifically, the first rubber layer and the second rubber layer are both made of PA (polyamide: polyamide resin) materials, and the waterproof and airtight performance of the PA materials is utilized, so that the sealed space is sealed, and the airtight and waterproof performance of the sealed space is guaranteed.

Further, the first rubber layer and the second rubber layer are both PU layers; specifically, the first rubber layer and the second rubber layer are both made of PU (Polyurethane) materials, and the waterproof and airtight performance of the PU materials is utilized, so that a sealed space is sealed, and the airtight and waterproof performance of the sealed space is guaranteed.

Further, the first rubber layer and the second rubber layer are both EVA layers; specifically, the first rubber layer and the second rubber layer are both made of EVA (ethylene-vinyl acetate copolymer) materials, and the airtight space is sealed by utilizing the waterproof and airtight performance of the EVA materials, so that the airtight and waterproof performance of the airtight space is ensured.

Further, the first rubber layer and the second rubber layer are both PVC layers; specifically, the first rubber layer and the second rubber layer are both made of Polyvinyl chloride (PVC) materials, and the waterproof and airtight performance of the PVC materials is utilized, so that a sealed space is sealed, and the airtight and waterproof performance of the sealed space is guaranteed.

In addition, in other embodiments, the first rubber layer and the second rubber layer can be replaced by other materials of the first rubber layer and the second rubber layer.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

EXAMPLE III

The backpack 1 of the present embodiment differs from the first embodiment in that: when the exhaust device 30 is installed on the bag body 10, the exhaust device 30 is clamped or screwed on the bag body 10; specifically, the exhaust device 30 is fixed on the bag body 10 in a clamping or screwing mode, so that the exhaust device 30 is convenient to assemble and disassemble, and convenient to maintain and replace.

Further, the buckle is arranged on one of the exhaust device 30 and the bag body 10, the clamping structure is arranged on the other, and the buckle is buckled in the clamping structure, so that the bag body 10 is connected with the exhaust device 30, and the connection mode is simple and reliable.

Further, the internal thread is arranged on one of the exhaust device 30 and the bag body 10, the external thread is arranged on the other, and the connection between the bag body 10 and the exhaust device 30 is realized through the thread matching of the internal thread and the external thread, so that the connection mode is simple and reliable.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

Example four

The backpack 1 of the present embodiment differs from the first embodiment in that: the exhaust device 30 is fixed on the bag body 10 through a fastener; specifically, when installed, the fastener secures the exhaust device 30 to the bag 10, which provides a secure connection, and more specifically, the fastener may be a screw, a bolt, or a bolt.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

EXAMPLE five

The backpack 1 of the present embodiment differs from the first embodiment in that: the casing of the exhaust device 30 is integrally formed with the bag body 10. The casing of the exhaust device 30 and the bag body 10 are connected together in an integrated molding mode, the connection mode is simple, the connection reliability is good, and specifically, the casing of the exhaust device 30 and the bag body 10 can be integrally injection molded.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

EXAMPLE six

The backpack 1 of the present embodiment differs from the first embodiment in that: as shown in fig. 3, 4 and 5, the air discharging device 30 includes a connecting pipe 32 and a pump body 31, the pump body 31 is mounted on the airtight bag 20 or the bag body 10, one end of the connecting pipe 32 is hermetically connected to the air outlet of the airtight bag 20, and the other end of the connecting pipe 32 is hermetically connected to the air inlet of the pump body 31. The air exhaust device 30 is divided into two parts, one part is a pump body 31 for exhausting air, the other part is a connecting pipe 32 for connecting the pump body 31 and the air outlet of the airtight bag 20, the pump body 31 pumps the air in the airtight bag 20 through the connecting pipe 32, and accordingly luggage compression is achieved; specifically, when the pump body 31 is installed on the bag body 10, the connecting pipe 32 is communicated with the airtight bag 20 and the pump body 31, so that the air exhaust of the airtight bag 20 is realized, and the connecting pipe 32 is connected, so that the installation position of the pump body 31 is more flexible, and the installation position of the pump body 31 can be designed according to actual needs so as to meet the requirements of larger loading capacity and use comfort; when the pump body 31 is installed on the airtight bag 20, and the connection of the connecting pipe 32 is provided, the relative position between the pump body 31 and the air outlet on the airtight bag 20 is more flexible, so that the installation position of the pump body 31 can be designed according to actual requirements, and the requirements of larger loading capacity, use comfort and more attractiveness are met.

Further, one end of the connecting tube 32 is connected to the air outlet of the air-tight bag 20 by sleeving, gluing or pressing, but other sealing structures may be used in other embodiments.

In this embodiment, the bag body 10 is fixed with a mounting bag, and the pump body 31 is located in the mounting bag; the pump body 31 is placed in the installation bag of holding intracavity, and the installation of the pump body 31 is easy and convenient, and in addition, the pump body 31 is portable in the installation bag, and when placing luggage, the pump body 31 can be along with the extrusion of luggage and nimble removal, avoids damaging the clothing, also can avoid the extrusion of luggage to produce the damage to the pump body 31. More specifically, the mounting bag may be a cloth bag or a plastic bag, and the mounting bag is directly sewn on the inner lining of the backpack 1, so that the mounting of the pump body 31 is simpler and more reliable.

In this embodiment, a mounting bag is fixed to the airtight bag 20, and the pump body 31 is located in the mounting bag. The pump body 31 is placed in the installation bag on the airtight bag 20, the installation operation of the pump body 31 is simple and convenient, in addition, the pump body 31 can move in the installation bag, so when luggage is placed, the pump body 31 can move flexibly along with the extrusion of the luggage, the clothes are prevented from being damaged, and the pump body 31 can also be prevented from being damaged by the extrusion of the luggage. More specifically, the mounting bag may be a cloth bag or a plastic bag, and the mounting bag is directly sewn on the airtight bag 20, so that the mounting of the pump body 31 is simpler and more reliable.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A backpack, characterized in that: the bag comprises a bag body, an airtight bag, an exhaust device and at least one shoulder strap connected to the bag body, wherein the airtight bag is provided with an accommodating cavity for accommodating luggage, the airtight bag is arranged in the accommodating cavity, and an air outlet is formed in the airtight bag; the gas inlet of the exhaust device is communicated with the gas outlet of the airtight bag, and the exhaust device is used for exhausting gas of the airtight bag so as to compress the luggage in the airtight bag; the air exhaust device is arranged on the airtight bag or the bag body.

2. The backpack of claim 1, wherein: when the exhaust device is arranged on the airtight bag, the shell of the exhaust device is fixed on the airtight bag in a fitting or pressing mode.

3. The backpack of claim 2, wherein: the shell of the exhaust device is covered with a first rubber layer, the surface of the airtight bag is covered with a second rubber layer, and the first rubber layer is attached to or in press fit connection with the second rubber layer.

4. The backpack of claim 1, wherein: when the exhaust device is arranged on the bag body, the exhaust device is clamped on or screwed on the bag body;

or the exhaust device is fixed on the bag body through a fastener;

or the shell of the exhaust device and the inclusion are integrally formed.

5. The backpack of claim 1, wherein: the air exhausting device comprises a connecting pipe and a pump body, the pump body is arranged on the airtight bag or the bag body, one end of the connecting pipe is in sealing connection with an air outlet of the airtight bag, and the other end of the connecting pipe is in sealing connection with an air inlet of the pump body.

6. The backpack of claim 5, wherein: an installation bag is fixed on the bag body, and the pump body is positioned in the installation bag;

or, an installation bag is fixed on the airtight bag, and the pump body is positioned in the installation bag.

7. The backpack according to any one of claims 1 to 6, wherein: the exhaust device is a piston pump, a vacuum pump and a pressure pump.

8. The backpack according to any one of claims 1 to 6, wherein: the backpack further comprises a switch, the switch is arranged on the backpack body, the airtight bag or the exhaust device, and the switch is electrically connected with the exhaust device and used for controlling the switch of the exhaust device.

9. The backpack according to any one of claims 1 to 6, wherein: the backpack further comprises an electrical interface, wherein the electrical interface is arranged on the airtight bag, the backpack body or the exhaust device and is electrically connected with an external power supply to realize power supply of the exhaust device.

10. The backpack according to any one of claims 1 to 6, wherein: the backpack further comprises a power source which is arranged on the backpack body, on the airtight bag or in the exhaust device and is used for supplying power to external electronic equipment and/or the exhaust device.

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