CN112237328A

CN112237328A - Outdoor knapsack with refrigeration function

Info

Publication number: CN112237328A
Application number: CN202011250850.9A
Authority: CN
Inventors: 朱振磊; 朱月健
Original assignee: Wudi Leiwei Outdoor Products Co Ltd
Current assignee: Wudi Leiwei Outdoor Products Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-01-19
Also published as: WO2022099839A1

Abstract

The invention relates to the field of outdoor backpacks and discloses an outdoor backpack with a refrigerating function, which comprises a backpack main body, wherein a refrigerating fan is arranged on the outer surface of the front end of the backpack main body, a battery pack and an ice bag pack are arranged on the outer surface of the side end of the backpack main body, zippers are arranged on the battery pack and the ice bag pack, and a top cover is arranged on the outer surface of the upper end of the backpack main body. Blow the ice bag in the air conditioning box through the refrigeration fan, not only can make air conditioning evenly distributed in the knapsack, and can also make the knapsack cool down rapidly, the rear end surface through at the knapsack main part sets up the cushion, the cushion passes through hinge and hasp and knapsack main part swing joint, be favorable to putting down the cushion when outdoor user is tired out, the user sits and leans on the knapsack main part on the back on the cushion and has a rest, upper end through at the knapsack main part sets up the puggaree, the puggaree passes through gear and draw-in groove angle regulation wantonly, conveniently shelter from the sun for the user.

Description

Outdoor knapsack with refrigeration function

Technical Field

The invention relates to the field of outdoor backpacks, in particular to an outdoor backpack with a refrigeration function.

Background

Along with the development of economy, quality of life's improvement, bigger and bigger people like the hiking, the hiking in-process, the tourist generally only carries a knapsack, is equipped with food, water and some necessary equipment in the knapsack, because some food need keep fresh and deposit, and the knapsack space is narrow and small, so sultry food very easily, at this moment, the outdoor knapsack that has the refrigeration function should be born. But present outdoor knapsack that has refrigeration function generally only sets up the ice bag intermediate layer in the knapsack, and knapsack refrigeration effect is slow to refrigeration is inhomogeneous, secondly, because the outdoor condition is complicated, the knapsack is heavier, and the user is tired out very easily, but does not have fine rest place outdoors, and finally, when the sun is comparatively hot, the gravity of knapsack leads to user's physical power loss very fast in addition to the insolate of sunshine, for this reason, we propose an outdoor knapsack that has refrigeration function.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an outdoor backpack with a refrigeration function, wherein an ice bag in a cold air box is blown by a refrigeration fan, so that cold air can be uniformly distributed in the backpack and the backpack can be rapidly cooled, a cushion is arranged on the outer surface of the rear end of a backpack main body and is movably connected with the backpack main body through a hinge and a lock catch, the cushion is favorably put down when an outdoor user is tired, the user sits on the cushion and leans against the backpack main body to have a rest, and the angle of the cushion can be adjusted freely through a gear and a clamping groove by arranging a sun-shading cloth at the upper end of the backpack main body, so that the sun can be conveniently sheltered for the user.

(II) technical scheme

In order to realize the purposes that the interior of the backpack main body can be rapidly and uniformly refrigerated, a cushion for a user to have a rest can be provided, and the sun can be shaded for the user, the invention provides the following technical scheme: an outdoor backpack with a refrigeration function comprises a backpack body, wherein a refrigeration fan is arranged on the outer surface of the front end of the backpack body, a battery pack and an ice bag pack are arranged on the outer surface of the side end of the backpack body, zippers are arranged on the battery pack and the ice bag pack, a top cover is arranged on the outer surface of the upper end of the backpack body, a connecting belt and a nano rubber pad are arranged on the outer surface of the rear end of the backpack body, a strap is arranged on the outer surface of the lower end of the connecting belt, an adjusting piece is arranged on the outer surface of the lower end of the strap, a cushion is arranged on the outer surface of the upper end of the nano rubber pad, a hinge and an upper lock catch are arranged on the outer surface of the upper end of the cushion, a lower lock catch is arranged on the outer surface of the rear end of the, the utility model discloses a solar energy sunshade, including cold gas box, telescopic link, connecting piece, connecting rod, fixing piece, loop bar, solar cell panel, the opening is provided with to one side surface of cold gas box, the upper end surface of telescopic link is provided with the connecting piece, the inboard surface of connecting piece is provided with the gear, the inboard surface of gear is provided with the connecting rod, the both ends of connecting rod are provided with the mounting, one side surface of mounting is provided with the loop bar, the front.

Preferably, the adjusting pieces are fixedly connected with the straps, the number of the adjusting pieces is two, the adjusting pieces are symmetrically arranged, the lower lock catches are fixedly connected with the backpack body, the number of the lower lock catches is three, and the lower lock catches are arranged equidistantly.

Preferably, the sunshade cloth is respectively and movably connected with the loop bar and the movable bar, the solar panels are fixedly connected with the sunshade cloth, the number of the solar panels is two, the solar panels are symmetrically arranged, the electric movable bar is movably connected with the loop bar, and the loop bar is fixedly connected with the fixing piece.

Preferably, be fixed connection between mounting and the connecting rod, the quantity of mounting is two sets of, and is the symmetry and arranges, be fixed connection between gear and the connecting rod, the quantity of gear is two sets of, and is the symmetry and arranges, be fixed connection between connecting piece and the telescopic link, the quantity of connecting piece is two sets of, and is the symmetry and arranges.

Preferably, the junction of connecting piece and gear is provided with the draw-in groove, the connecting piece passes through draw-in groove and gear swing joint, the quantity of draw-in groove is two sets of, the draw-in groove is the symmetry and arranges, the quantity of telescopic link is two sets of, the telescopic link is the symmetry and arranges.

Preferably, be fixed connection between cold air box and the knapsack main part, the quantity of rectangular channel is a plurality of groups, the rectangular channel is the array and arranges, the zip fastener respectively with battery package and ice bag package swing joint, the quantity of zip fastener is two sets of, battery package and ice bag package respectively with the knapsack main part between be fixed connection, the inboard surface of battery package is provided with the battery.

Preferably, be fixed connection between refrigeration fan and the knapsack main part, the quantity of refrigeration fan is two sets of, and is the symmetry and arranges, be swing joint between top cap and the knapsack main part, the connecting band respectively with knapsack main part and braces fixed connection, the quantity of braces is two sets of, and is the symmetry and arranges.

Preferably, the hinge respectively with knapsack main part and cushion fixed connection, the cushion passes through hinge and knapsack main part swing joint, the quantity of hinge is two sets of, and is the symmetry and arranges, the cushion respectively with nanometer rubber pad with go up the hasp fixed connection, the quantity of going up the hasp is three groups, and is the equidistance and arranges.

(III) advantageous effects

Compared with the prior art, the invention provides an outdoor backpack with a refrigeration function, which has the following beneficial effects:

1. this outdoor knapsack with refrigeration function, set up the refrigeration fan through the front end surface at the knapsack, the rear end surface of refrigeration fan is provided with the cold air box to the inboard of knapsack main part, the cold air box is equipped with opening one end and corresponds knapsack main part department and sets up the ice bag package, open the ice bag package through the zip fastener and put into the cold air with the ice bag and with the middle and middle, the rectangular channel that the refrigeration fan passes through on the cold air box with the cold air blows off, not only be favorable to making the inside quick refrigeration of knapsack, and because blowing of the refrigeration fan, be favorable to making inside air conditioning evenly distributed and the knapsack, can make food keep fresh better in the knapsack.

2. This outdoor knapsack with refrigeration function, rear end surface through at the knapsack main part sets up the nanometer rubber pad, the upper end surface of nanometer rubber pad is provided with the cushion, the cushion passes through hinge and knapsack main part swing joint, be favorable to when tired out in the open air, put down the cushion, the user sits on the cushion, the knapsack of leaning on has a rest, the nanometer rubber pad of cushion lower extreme can be on contact soil spot such as earth when ground not, conveniently manage, and be provided with hasp and lower hasp respectively in cushion and the knapsack main part, after having a rest, only need to detain the hasp and just can accomodate the cushion, it is more convenient.

3. This outdoor knapsack with refrigeration function, inside through at the knapsack main part sets up the telescopic link, be provided with the connecting piece on the telescopic link, the connecting piece passes through parts such as gear connection connecting rod, the puggaree passes through loop bar and movable rod and fixes on the connecting rod, be favorable to passing through gear and draw-in groove upset user overhead end with the puggaree when outdoor sun is comparatively poisonous and spicy, can adjust the angle of puggaree wantonly, and the upper and lower both ends of puggaree all are provided with solar cell panel, be favorable to depositing the battery with solar energy transformation for the electric energy, provide the electric energy for the refrigeration fan, energy-concerving and environment-.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a partially open view of the knot of the present invention;

FIG. 4 is a side cross-sectional view of the structure of the present invention;

FIG. 5 is a partial view of the structure of the present invention;

fig. 6 is a partial exploded view of the structure of the present invention.

In the figure: 1. a backpack body; 2. a refrigeration fan; 3. a battery pack; 4. wrapping with ice bags; 5. a zipper; 6. a top cover; 7. a connecting belt; 8. a harness; 9. an adjustment member; 10. a nano rubber pad; 11. a soft cushion; 12. locking a lock catch; 13. a hinge; 14. a lower lock catch; 15. a cold air box; 16. a rectangular groove; 17. a port; 18. a storage battery; 19. a telescopic rod; 20. a connecting member; 21. a card slot; 22. a gear; 23. a connecting rod; 24. a fixing member; 25. a loop bar; 26. a movable rod; 27. a sun-shading cloth; 28. a solar cell panel.

Detailed description of the invention

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.

Referring to fig. 1-6, an outdoor backpack with a refrigeration function comprises a backpack body 1, a refrigeration fan 2 is disposed on the outer surface of the front end of the backpack body 1, the refrigeration fan 2 facilitates blowing cold air into the backpack body 1 quickly to refrigerate the backpack body 1 quickly and refrigerate uniformly, a battery pack 3 and an ice bag pack 4 are disposed on the outer surface of the side end of the backpack body 1, zippers 5 are disposed on the battery pack 3 and the ice bag pack 4, a top cover 6 is disposed on the outer surface of the upper end of the backpack body 1, a connecting belt 7 and a nano rubber pad 10 are disposed on the outer surface of the rear end of the backpack body 1, the nano rubber pad 10 facilitates contacting the ground without staining, a user can conveniently manage the backpack, a strap 8 is disposed on the outer surface of the lower end of the connecting belt 7, an adjusting piece 9 is disposed on the outer surface of the, the outer surface of the upper end of the soft cushion 11 is provided with a hinge 13 and an upper lock catch 12, the outer surface of the rear end of the backpack body 1 is provided with a lower lock catch 14, the outer surface of the inner side of the backpack body 1 is provided with a cold air box 15 and a telescopic rod 19, the telescopic rod 19 is beneficial to pulling the sun-shading cloth 27 out of the backpack body 1 so as to block the sun on the top of the head of a user, the outer surface of the side end and the outer surface of the upper end of the cold air box 15 are provided with rectangular grooves 16, the outer surface of one side of the cold air box 15 is provided with a through hole 17, the outer surface of the upper end of the telescopic rod 19 is provided with a connecting piece 20, the connecting piece 20 is beneficial to connecting a gear 22 so as to be beneficial to randomly adjusting the angle of the sun-shading cloth 27, the outer surface of the, the side outer surfaces of the loop bar 25 and the movable bar 26 are provided with the sun-shading cloth 27, the sun-shading cloth 27 can effectively shade the sun for a user, the outer surfaces of the upper end and the lower end of the sun-shading cloth 27 are provided with the solar cell panels 28, and the solar cell panels 28 can convert solar energy into electric energy to be stored in the storage battery 18.

Be fixed connection between regulating part 9 and the braces 8, regulating part 9 and quantity be two sets of, and regulating part 9 is the symmetry and arranges, is fixed connection between lower hasp 14 and the knapsack main part 1, and the quantity of lower hasp 14 is three groups, and lower hasp 14 is the equidistance and arranges, and upper lock catch 12 and lower hasp 14 not only can be buckled cushion 11 and knapsack main part 1, still can not restrict cushion 11 and open.

The puggaree 27 respectively with loop bar 25 and movable rod 26 swing joint, be fixed connection between solar cell panel 28 and the puggaree 27, solar cell panel 28's quantity is two sets of, solar cell panel 28 is the symmetry and arranges, be swing joint between electronic movable rod 26 and the loop bar 25, be fixed connection between loop bar 25 and the mounting 24, puggaree 27 can effectively shelter from the sun for the user, solar cell panel 28 can be stored in battery 18 with solar energy transformation electric energy.

Be fixed connection between mounting 24 and the connecting rod 23, the quantity of mounting 24 is two sets of, and is the symmetry and arranges, is fixed connection between gear 22 and the connecting rod 23, and the quantity of gear 22 is two sets of, and is the symmetry and arranges, is fixed connection between connecting piece 20 and the telescopic link 19, and the quantity of connecting piece 20 is two sets of, and is the symmetry and arranges, and connecting piece 20 is favorable to connecting gear 22 to be favorable to the arbitrary angle regulation of puggaree 27.

Connecting piece 20 is provided with draw-in groove 21 with gear 22's junction, and connecting piece 20 passes through draw-in groove 21 and gear 22 swing joint, and the quantity of draw-in groove 21 is two sets of, and draw-in groove 21 is the symmetry and arranges, and the quantity of telescopic link 19 is two sets of, and telescopic link 19 is the symmetry and arranges, and telescopic link 19 is favorable to pulling out knapsack main part 1 with puggaree 27 to can shelter from the sun at user's top of the head.

Be fixed connection between cold air box 15 and the knapsack main part 1, the quantity of rectangular channel 16 is a plurality of groups, rectangular channel 16 is the array and arranges, zip fastener 5 respectively with

battery package

3 and 4 swing joint of ice bag package, the quantity of zip fastener 5 is two sets of, battery package 3 and ice bag package 4 respectively with knapsack main part 1 between be fixed connection, the inboard surface of battery package 3 is provided with battery 18, battery package 3 is favorable to accomodating battery 18, battery 18 can store the electric energy by solar energy conversion, thereby provide the electric energy for refrigerating fan 2.

For fixed connection between refrigeration fan 2 and the knapsack main part 1, the quantity of refrigeration fan 2 is two sets of, and is the symmetry and arranges, be swing joint between top cap 6 and the knapsack main part 1, connecting band 7 respectively with knapsack main part 1 and braces 8 fixed connection, the quantity of braces 8 is two sets of, and is the symmetry and arranges, refrigeration fan 2 is favorable to blowing in air conditioning into knapsack main part 1 fast in, make quick refrigeration in the knapsack main part 1 to it is even to refrigerate.

Hinge 13 respectively with knapsack

main part

1 and 11 fixed connection of cushion, cushion 11 passes through

hinge

13 and 1 swing joint of knapsack main part, the quantity of hinge 13 is two sets of, and is the symmetry and arranges, cushion 11 respectively with nanometer rubber pad 10 with last latch 12 fixed connection, the quantity of last latch 12 is three groups, and be the equidistance and arrange, hinge 13 is convenient for 11 the opening and shutting of cushion, nanometer rubber pad 10 is favorable to contacting ground and is not infected with the spot, the person of facilitating the use manages.

When the backpack is in work, a user firstly installs needed food and corresponding equipment in the backpack body 1, then the ice bag 4 is opened by the zipper 5, the ice bag is put in the cold air box 15, the refrigerating fan 2 is turned on to fan the interior of the backpack body 1, the refrigerating fan 2 blows out cold air from the rectangular groove 16, so that the interior of the backpack body 1 can be rapidly refrigerated, the interior of the backpack body 1 can be uniformly refrigerated, when the user feels tired outdoors, the upper lock catch 12 and the lower lock catch 14 are opened, the cushion 11 is put down, the user sits on the cushion 11 and leans against the backpack body 1 to rest, the tired of the user can be relieved, the nano rubber pad 10 at the lower end of the cushion 11 is in contact with the ground, the nano level can not be contaminated with soil and other stains, the user can conveniently manage, when the user feels that the sun is very sunned on foot, the user can draw out the sun-shading cloth 27 through the telescopic rod 19, afterwards, the sun-shading cloth 27 is turned to the top of the head, the gear 22 and the clamping groove 21 facilitate the adjustment of the sun-shading cloth 27 at any angle, and the upper end and the lower end of the sun-shading cloth 27 are respectively provided with the solar cell panel 28, so that the solar energy can be converted into the electric energy to be stored in the storage battery 18, the electric energy is provided for the refrigerating fan 2, and the energy-saving and environment-friendly effects are achieved.

In conclusion, according to the outdoor backpack with the refrigerating function, the refrigerating fan 2 is arranged on the outer surface of the front end of the backpack body 1, the cold air box 15 is arranged on the outer surface of the rear end of the refrigerating fan 2 towards the inner side of the backpack body 1, the ice bag 4 is arranged at the end, provided with the through hole 17, of the cold air box 15, which corresponds to the backpack body 1, the ice bag 4 is opened through the zipper 5 to be placed into the cold air box 15, and the refrigerating fan 2 blows out cold air through the rectangular groove 16 on the cold air box 15, so that the inside of the backpack body 1 can be rapidly refrigerated, and due to the blowing of the refrigerating fan 2, the cold air can be uniformly distributed in the backpack body 1, and food in the backpack body 1 can be better preserved; the nanometer rubber pad 10 is arranged on the outer surface of the rear end of the backpack body 1, the soft pad 11 is arranged on the outer surface of the upper end of the nanometer rubber pad 10, the soft pad 11 is movably connected with the backpack body 1 through the hinge 13, the soft pad 11 is favorably put down when the user feels tired outdoors, the user sits on the soft pad 11 and rests against the backpack body 1, the nanometer rubber pad 10 at the lower end of the soft pad 11 can not be stained with dirt such as soil when contacting the ground, the cleaning is convenient, the upper lock catch 12 and the lower lock catch 14 are respectively arranged on the soft pad 11 and the backpack body 1, and after the rest is finished, the soft pad 11 can be stored only by buckling the lock catch, so that the convenience is; through the inside at knapsack main part 1 sets up telescopic link 19, be provided with connecting piece 20 on telescopic link 19, connecting piece 20 passes through parts such as gear 22 connection connecting rod 23, puggaree 27 passes through loop bar 25 and movable rod 26 and fixes on connecting rod 23, be favorable to passing through gear 22 and draw-in groove 21 upset user overhead end with puggaree 27 when outdoor sun is comparatively peppery, can adjust puggaree 27's angle wantonly, and puggaree 27's upper and lower both ends all are provided with solar cell panel 28, be favorable to depositing battery 18 with solar energy transformation to the electric energy, provide the electric energy for refrigeration fan 2, energy-concerving and environment-protective relatively.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides an outdoor knapsack with refrigeration function, includes knapsack main part (1), its characterized in that: the backpack comprises a backpack body (1), and is characterized in that a refrigerating fan (2) is arranged on the outer surface of the front end of the backpack body (1), a battery pack (3) and an ice bag pack (4) are arranged on the outer surface of the side end of the backpack body (1), zippers (5) are arranged on the battery pack (3) and the ice bag pack (4), a top cover (6) is arranged on the outer surface of the upper end of the backpack body (1), a connecting belt (7) and a nano rubber pad (10) are arranged on the outer surface of the rear end of the backpack body (1), straps (8) are arranged on the outer surface of the lower end of the connecting belt (7), an adjusting piece (9) is arranged on the outer surface of the lower end of the straps (8), a cushion (11) is arranged on the outer surface of the upper end of the nano rubber pad (10), hinges (13) and upper latches (12, the outer surface of the inner side of the backpack main body (1) is provided with a cold air box (15) and a telescopic rod (19), the outer surface of the side end and the outer surface of the upper end of the cold air box (15) are provided with rectangular grooves (16), a through hole (17) is arranged on the outer surface of one side of the cold air box (15), a connecting piece (20) is arranged on the outer surface of the upper end of the telescopic rod (19), a gear (22) is arranged on the outer surface of the inner side of the connecting piece (20), a connecting rod (23) is arranged on the outer surface of the inner side of the gear (22), fixing pieces (24) are arranged at two ends of the connecting rod (23), a loop bar (25) is arranged on the outer surface of one side of each fixing piece (24), a movable rod (26) is arranged on the outer surface of the front end of the sleeve rod (25), a sun-shading cloth (27) is arranged on the outer surfaces of the side ends of the sleeve rod (25) and the movable rod (26), the outer surfaces of the upper end and the lower end of the sun-shading cloth (27) are provided with solar panels (28).

2. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: the backpack is characterized in that the adjusting pieces (9) are fixedly connected with the straps (8), the adjusting pieces (9) are arranged in two groups, the adjusting pieces (9) are symmetrically arranged, the lower lock catches (14) are fixedly connected with the backpack body (1), the lower lock catches (14) are arranged in three groups, and the lower lock catches (14) are arranged equidistantly.

3. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: the utility model discloses a solar cell panel, including sunshade cloth (27), loop bar (25) and movable rod (26), be fixed connection between solar cell panel (28) and sunshade cloth (27), the quantity of solar cell panel (28) is two sets of, solar cell panel (28) are the symmetry and arrange, are swing joint between electronic movable rod (26) and loop bar (25), be fixed connection between loop bar (25) and mounting (24).

4. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: be fixed connection between mounting (24) and connecting rod (23), the quantity of mounting (24) is two sets of, and is the symmetry and arranges, be fixed connection between gear (22) and connecting rod (23), the quantity of gear (22) is two sets of, and is the symmetry and arranges, be fixed connection between connecting piece (20) and telescopic link (19), the quantity of connecting piece (20) is two sets of, and is the symmetry and arranges.

5. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: the utility model discloses a gear connecting rod, including connecting piece (20), connecting piece (20) and gear (22), the junction of connecting piece (20) and gear (22) is provided with draw-in groove (21), connecting piece (20) pass through draw-in groove (21) and gear (22) swing joint, the quantity of draw-in groove (21) is two sets of, draw-in groove (21) are the symmetry and arrange, the quantity of telescopic link (19) is two sets of, telescopic link (19) are the symmetry and arrange.

6. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: be fixed connection between cold gas box (15) and knapsack main part (1), the quantity of rectangular channel (16) is a plurality of groups, rectangular channel (16) are the array and arrange, zip fastener (5) respectively with battery package (3) and ice bag package (4) swing joint, the quantity of zip fastener (5) is two sets of, be fixed connection between battery package (3) and ice bag package (4) respectively and knapsack main part (1), the inboard surface of battery package (3) is provided with battery (18).

7. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: the novel backpack is characterized in that the refrigerating fans (2) are fixedly connected with the backpack body (1), the refrigerating fans (2) are arranged in two groups and symmetrically arranged, the top cover (6) is movably connected with the backpack body (1), the connecting belt (7) is fixedly connected with the backpack body (1) and the straps (8) respectively, and the straps (8) are arranged in two groups and symmetrically arranged.

8. The outdoor backpack with refrigeration function as claimed in claim 1, characterized in that: hinge (13) respectively with knapsack main part (1) and cushion (11) fixed connection, cushion (11) are through hinge (13) and knapsack main part (1) swing joint, the quantity of hinge (13) is two sets of, and is the symmetry and arranges, cushion (11) respectively with nanometer rubber pad (10) and lock catch (12) fixed connection, the quantity of going up hasp (12) is three groups, and is the equidistance and arranges.