CN210018251U - Backpack - Google Patents

Abstract

The utility model provides a backpack, which comprises a main body, at least one adjusting group is arranged on the main body, the adjusting group comprises a strap, an adjusting belt and two fixing units, the two fixing units are arranged oppositely up and down and are in a straight line, the fixing units comprise a rotating shaft, a threaded sleeve and two fixing blocks arranged oppositely, bearings are arranged on the fixing blocks, two ends of the rotating shaft are respectively sheathed in the bearings, the outer end of the rotating shaft extends out of one of the fixing blocks, the threaded sleeve is sheathed on the rotating shaft and is positioned between the two fixing blocks, the strap is connected on the main body and is positioned between the rotating shafts of the two fixing units which are opposite up and down, two ends of the adjusting belt are respectively connected on the threaded sleeves of the two fixing units which are opposite up and down and are positioned at one side of the strap, the threaded sleeve is driven to rotate by the, avoid the stress to concentrate on one place for a long time, reduce the injury to the shoulder, bring the comfort for the user.

Description

Backpack

Technical Field

The utility model relates to a knapsack field especially relates to a knapsack.

Background

The backpack is relatively firm when being carried on the back due to the fact that the backpack carries a lot of articles, is convenient to carry, can liberate hands, and is popular in daily life or various sports all the time. For the backpack with large capacity, the weight loaded by the backpack is too large, the load borne by a person is very large, the stress area is only the part of the backpack contacted with the human body, and the backpack is concentrated at the same position for a long time, is easy to fatigue and has large harm to the shoulders.

SUMMERY OF THE UTILITY MODEL

To the weak point among the above-mentioned prior art, the utility model aims at providing a alleviate shoulder injury, comfortable knapsack.

In order to solve the technical problem, the backpack provided by the utility model comprises a main body, at least one adjusting group is arranged on the main body, the adjusting group comprises a back strap, an adjusting strap and two fixing units, the two fixing units are oppositely arranged up and down and form a straight line, the fixing unit comprises a rotating shaft, a threaded sleeve and two fixing blocks which are oppositely arranged, a bearing is arranged on each fixing block, the two ends of the rotating shaft are respectively sleeved in the bearings, the outer end of the rotating shaft extends out of one of the fixing blocks, the threaded sleeve is sleeved on the rotating shaft and positioned between the two fixing blocks, the strap is connected on the main body and positioned between the rotating shafts of the two fixing units which are opposite up and down, the adjusting belt is positioned on one side of the shoulder belt, and two ends of the adjusting belt are respectively connected to the threaded sleeves of the two fixing units which are opposite up and down.

Optionally, the adjusting belts are disposed on both sides of the shoulder strap, two threaded sleeves are disposed on the rotating shaft, the thread directions of the two threaded sleeves on the same rotating shaft are opposite, the two threaded sleeves are disposed on both sides of the shoulder strap respectively, and the adjusting belts are connected to the threaded sleeves.

Furthermore, two adjusting groups are arranged on the main body and arranged in parallel, and the fixing units are distributed on the main body in a rectangular array manner.

Further comprises a ventilation device, the ventilation device comprises a ventilation plate, an operation block and a pull rope, the first side of the ventilation board is rotatably connected to the main body, the operation block is arranged on one side of the main body, the operating block is provided with a through hole, two opposite side walls of the through hole are respectively provided with a groove, an elastic piece is arranged in the groove, one end of the elastic piece is connected with the groove bottom of the groove, the other end of the elastic piece is connected with a moving block, the moving block extends out of the groove into the through hole, the first end of the pull rope is connected to the second side of the ventilation board opposite to the first side of the ventilation board, the second end of the pull rope passes between the two moving blocks and extends out of the through hole, a clamping block is arranged on the pull rope, the fixture block is positioned above the moving blocks, and the diameter of the fixture block is larger than the distance between the two moving blocks.

Optionally, the fixture block is a sphere.

Optionally, the cross section of the moving block is trapezoidal.

Furthermore, a sliding groove is formed in the side wall of the groove, a sliding block is arranged at one end, connected with the elastic piece, of the moving block, and the sliding block extends into the sliding groove.

Furthermore, the outer end of the rotating shaft and the second end of the pull rope are respectively provided with anti-skid grains.

Further, the bottom of main part is equipped with the supporting pad.

Further, a handle is arranged at the top end of the main body.

The utility model discloses beneficial effect as follows:

1. the utility model discloses a set up the regulation group in the main part, when the load of knapsack is great, the regulation group drives the screw sleeve through rotating the pivot and rotates to drive the regulation band and keep away from the braces, increase the fulcrum of user atress, with the power dispersion, avoid the atress to concentrate on a department for a long time, reduce the injury to the shoulder, and be favorable to the user to be carrying on the back for a long time, bring the comfort for the user.

2. The utility model discloses be equipped with two regulation groups in the main part, make the knapsack be the backpack, more be favorable to carrying on the back the heavy object, reduce the injury to the shoulder. In addition, the utility model discloses still be equipped with ventilation unit in the main part, make the ventilation cooling between knapsack and the back.

Drawings

Fig. 1 is a schematic view of a backpack of an embodiment.

Fig. 2 is an enlarged view at a.

Wherein, 1, a main body; 2. a harness; 3. an adjustment belt; 4. a rotating shaft; 5. a threaded sleeve; 6. a fixed block; 7. a ventilation board; 8. an operation block; 801. a through hole; 802. a groove; 803. a chute; 9. pulling a rope; 10. an elastic member; 11. a moving block; 12. a clamping block; 13. a slider; 14. a support pad; 15. a handle; 16. and a limiting block.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the knapsack of this embodiment includes main part 1, be equipped with at least one regulation group on main part 1, regulation group includes braces 2, adjusting band 3 and two fixed units, two fixed units set up and form relatively from top to bottom, fixed unit includes pivot 4, threaded sleeve 5 and two fixed blocks 6 that set up relatively, be equipped with the bearing on the fixed block 6, the suit is in the bearing respectively at the both ends of pivot 4, the outer end of pivot 4 stretches out from one of them fixed block 6, threaded sleeve 5 suit is on pivot 4 and is located between two fixed blocks 6, braces 2 are connected on main part 1 and are located between pivot 4 of two fixed units relative from top to bottom, adjusting band 3 is located one side of braces 2, the both ends of adjusting band 3 are connected respectively on threaded sleeve 5 of two fixed units relative from top to bottom. This embodiment is through setting up the regulation group on main part 1, and when the load of knapsack is great, the regulation group drives threaded sleeve 5 through rotating pivot 4 and rotates to drive regulation band 3 and keep away from braces 2, increase the fulcrum of user atress, with the power dispersion, avoid the atress to concentrate on a department for a long time, reduce the injury to the shoulder, and be favorable to the user to be carried on the back for a long time, bring the comfort for the user.

In this embodiment, the both sides of braces 2 all are equipped with adjusting belt 3, be equipped with two threaded sleeve 5 on pivot 4, the screw thread opposite direction who is located two threaded sleeve 5 on same pivot 4, two threaded sleeve 5 are located the both sides of braces 2 respectively, adjusting belt 3 connects 5 on threaded sleeve, the both sides of braces 2 all are equipped with adjusting belt 3, rotate pivot 4, two threaded sleeve 5 toward opposite direction motion, braces 2 are kept away from toward opposite direction to two adjusting belt 3, further increase the fulcrum of user's atress. In addition, the main body 1 is provided with two adjusting groups which are arranged in parallel, the fixing units are distributed on the main body 1 in a rectangular array mode, when only one adjusting group is arranged on the main body 1, the backpack is a single-shoulder bag, and when two adjusting groups are arranged on the main body 1, the backpack is a double-shoulder bag.

In addition, the backpack of this embodiment is further provided with a ventilation device, the ventilation device includes a ventilation board 7, an operation block 8 and a pulling rope 9, a first side of the ventilation board 7 is rotatably connected to the main body 1, the operation block 8 is arranged on one side of the main body 1, a through hole 801 is arranged on the operation block 8, grooves 802 are respectively arranged on two opposite side walls of the through hole 801, elastic members 10 are arranged in the grooves 802, the elastic members 10 of this embodiment are return springs, one end of each elastic member 10 is connected to the bottom of the groove 802, the other end of each elastic member 10 is connected with a moving block 11, the moving blocks 11 extend out of the grooves 802 into the through holes 801, a first end of the pulling rope 9 is connected to a second side of the ventilation board 7 opposite to the first side of the ventilation board 7, a second end of the pulling rope 9 passes between the two moving blocks 11 and extends out of the through holes 801, and the diameter of the latch 12 is larger than the distance between the two moving blocks 11. When the back generates heat, the pull rope 9 is pulled, the fixture block 12 moves downwards from the upper side of the movable blocks 11, the two movable blocks 11 move towards two sides respectively, the fixture block 12 continues to move downwards, the fixture block 12 moves to the lower side of the movable blocks 11, the movable blocks 11 reset under the elastic action of the elastic pieces 10, meanwhile, the ventilation plate 7 rotates around one side of the ventilation plate, and finally the ventilation plate 7 stands up to enable the main body 1 to be separated from the back for ventilation and heat dissipation. This embodiment all is equipped with operation piece 8 in the both sides of main part 1, and the both ends of ventilating board 7 all are equipped with stay cord 9. In addition, the fixture block 12 of the present embodiment is spherical, and the cross section of the moving block 11 is trapezoidal, so that the fixture block 12 is more likely to push away the moving block 11 when moving downward. In this embodiment, a sliding groove 803 is formed in a side wall of the groove 802, a slider 13 is disposed at one end of the moving block 11 connected to the elastic member 10, and the slider 13 extends into the sliding groove 803, so as to guide the movement of the moving block 11 and prevent the moving block 11 from being separated from the groove 802. In addition, the stay cord 9 is further provided with a limiting block 16, the limiting block 16 is located below the moving blocks 11, the diameter of the limiting block 16 is larger than the distance between the two moving blocks 11, the limiting block 16 is also spherical, and the stay cord 9 is placed to slide out of the through hole 801 when the ventilation board 7 falls down.

In this embodiment, the outer end of the rotating shaft 4 and the second end of the pulling rope 9 are respectively provided with anti-slip patterns, so that the rotating shaft 4 and the pulling rope 9 can be conveniently rotated. The bottom of main part 1 is equipped with supporting pad 14, makes the placing of knapsack more stable. The top end of the main body 1 is provided with a handle 15, which is convenient for hanging and carrying.

In summary, in the embodiment, the adjusting set is disposed on the main body 1, the adjusting set includes fixing units disposed oppositely, the fixing units include a rotating shaft 4, a threaded sleeve 5 and two fixing blocks 6 disposed oppositely, two ends of the rotating shaft 4 are sleeved in bearings on the two fixing blocks 6, the threaded sleeve 5 is sleeved on the rotating shaft 4, the strap 2 is connected to the main body 1 and located between the rotating shafts 4 of the two fixing units disposed oppositely, two ends of the adjusting belt 3 are respectively connected to the threaded sleeves 5 of the two fixing units disposed oppositely and located on one side of the strap 2, the adjusting set drives the threaded sleeve 5 to rotate by rotating the rotating shaft 4, thereby drive adjusting band 3 and keep away from braces 2, increase the fulcrum of user's atress, with the power dispersion, avoid the atress to concentrate on one for a long time, reduce the injury to the shoulder, and be favorable to the user to carry on one's back for a long time, bring the comfort for the user.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A backpack is characterized by comprising a main body, at least one adjusting group is arranged on the main body, the adjusting group comprises a back strap, an adjusting strap and two fixing units, the two fixing units are oppositely arranged up and down and form a straight line, the fixing unit comprises a rotating shaft, a threaded sleeve and two fixing blocks which are oppositely arranged, a bearing is arranged on each fixing block, the two ends of the rotating shaft are respectively sleeved in the bearings, the outer end of the rotating shaft extends out of one of the fixing blocks, the threaded sleeve is sleeved on the rotating shaft and positioned between the two fixing blocks, the strap is connected on the main body and positioned between the rotating shafts of the two fixing units which are opposite up and down, the adjusting belt is positioned on one side of the shoulder belt, and two ends of the adjusting belt are respectively connected to the threaded sleeves of the two fixing units which are opposite up and down.

2. The backpack as claimed in claim 1, wherein the adjusting straps are disposed on both sides of the shoulder strap, two threaded sleeves are disposed on the rotating shaft, the two threaded sleeves on the same rotating shaft have opposite thread directions, the two threaded sleeves are disposed on both sides of the shoulder strap, respectively, and the adjusting straps are connected to the threaded sleeves.

3. The backpack according to claim 1, wherein the main body is provided with two adjustment groups, the adjustment groups are arranged in parallel, and the fixing units are distributed in a rectangular array on the main body.

4. The backpack of claim 1, further comprising a ventilation device, wherein the ventilation device comprises a ventilation board, an operation block and a pulling rope, a first side of the ventilation board is rotatably connected to the main body, the operation block is disposed on one side of the main body, a through hole is disposed on the operation block, grooves are disposed on two opposite side walls of the through hole, an elastic member is disposed in each groove, one end of the elastic member is connected to a bottom of each groove, the other end of the elastic member is connected to a moving block, the moving block extends into the through hole from the groove, a first end of the pulling rope is connected to a second side of the ventilation board opposite to the first side of the ventilation board, a second end of the pulling rope passes between the two moving blocks and extends out of the through hole, a clamping block is disposed on the pulling rope, and the clamping block is located above the moving blocks, and the diameter of the fixture block is larger than the distance between the two moving blocks.

5. The backpack of claim 4, wherein the cartridge is a ball.

6. The backpack of claim 4, wherein the moving mass has a trapezoidal cross-section.

7. The backpack as claimed in claim 4, wherein a sliding groove is formed on a side wall of the groove, and a sliding block is disposed at an end of the moving block connected to the elastic member, and the sliding block extends into the sliding groove.

8. The backpack of claim 4, wherein the outer end of the pivot and the second end of the pull cord are each provided with anti-slip threads.

9. The backpack of claim 1, wherein the bottom of the body is provided with a support pad.

10. The backpack of claim 1, wherein a handle is provided at a top end of the body.

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