CN110772016A

CN110772016A - Shoulder bag

Info

Publication number: CN110772016A
Application number: CN201911056953.9A
Authority: CN
Inventors: 付成龙; 邓然宝; 冷雨泉; 林欣
Original assignee: Southern University of Science and Technology
Current assignee: Southern University of Science and Technology
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-02-11

Abstract

The invention provides a backpack, which comprises a backpack body for loading heavy objects, a backpack support for supporting the back of a human body, straps connected with the backpack support, a movable support for supporting and fixing the backpack body, a linear sliding assembly for guiding the movable support to move up and down on the backpack support, an elastic element for connecting the backpack support and the movable support and playing a damping and buffering role, and an electrostatic adsorption mechanism for adjusting friction damping between the backpack support and the movable support. In the process of the load walking movement of the human backpack, the linear slide rail assembly guides the movable support to move up and down on the backpack support, and the impact force of the straps on the shoulders of the human body is buffered under the action of the damping force of the elastic element. And the first electrostatic absorption sheet on the backpack support and the second electrostatic absorption sheet on the movable support are electrified to generate static friction, so that a vibration damping force is formed in the vertical direction, the impact force borne by the shoulder is further reduced, and the fatigue damage of the backpack to the shoulder muscle is avoided.

Description

Shoulder bag

Technical Field

The invention belongs to the technical field of human body wearing equipment, and particularly relates to a backpack.

Background

The backpack has the advantages of simple structure, heavy load and the like, and becomes one of the load-bearing devices frequently used in daily life. The shoulder straps of most backpack are generally directly fixed on the back of the backpack body, and when the backpack is used for hiking, traveling, mountain climbing or sports training, the backpack loaded with heavy objects generally swings up and down along with the walking movement of a human body, so that the backpack is easy to rub against the back of the human body, and the comfort level of the backpack load of a user is reduced. But also can generate larger amplitude up-and-down vibration in the vertical direction, so that the shoulders of the human body bear larger compression force, even the shoulder straps form stronger instantaneous impact force on the shoulders of the human body, the muscles of the shoulders are sore, the fatigue of the human body is increased, and the people often feel difficult to bear.

Disclosure of Invention

The invention aims to provide a backpack, and aims to solve the problem that in the prior art, during the process of carrying and walking movement of a backpack by a human body, the backpack vibrates in the vertical direction to a large extent, so that the shoulders of the human body bear strong impact force.

In order to achieve the above object, the present invention provides a backpack, including a backpack body for carrying articles, a backpack support for supporting the back of a human body, straps connected to the backpack support, a movable support for supporting and fixing the backpack body, a linear sliding assembly for guiding the movable support to move up and down on the backpack support, an elastic element for connecting the backpack support and the movable support and playing a role of damping and buffering, and an electrostatic adsorption mechanism for adjusting friction damping between the backpack support and the movable support, wherein the electrostatic adsorption mechanism includes a first electrostatic adsorption sheet disposed on the backpack support, a second electrostatic adsorption sheet electrostatically adsorbed and matched with the first electrostatic adsorption sheet, and a controller for controlling an electrostatic adsorption force between the first electrostatic adsorption sheet and the second electrostatic adsorption sheet, the second electrostatic absorption sheet is arranged on the movable support.

Further, the longitudinal direction of the first electrostatic absorption sheet and the longitudinal direction of the second electrostatic absorption sheet are perpendicular to each other.

Further, the electrostatic adsorption mechanism still include with the gravity sensor that the knapsack support links to each other, the one end of first electrostatic adsorption piece length direction with gravity sensor links to each other, the other end of first electrostatic adsorption piece length direction with the knapsack support links to each other, gravity sensor with the controller electrical property links to each other.

Furthermore, the electrostatic adsorption mechanism further comprises an adjusting component for adjusting pressing force between the first electrostatic adsorption piece and the second electrostatic adsorption piece, the adjusting component comprises a linear slide rail fixed on the backpack support, a moving block slidably arranged on the linear slide rail to pull the first electrostatic adsorption piece, a positioning piece fixed on the backpack support and a bolt used for pulling the moving block, the bolt is rotatably arranged on the positioning piece, and a threaded hole matched with and connected with the bolt is formed in the moving block.

Further, the first electrostatic absorption sheet is formed by overlapping at least two layers of electrostatic absorption films, and/or the second electrostatic absorption sheet is formed by overlapping at least two layers of electrostatic absorption films.

Further, the elastic element is an elastic rope.

Further, move and rotate on the support and install first rope winding wheel, rotate on the knapsack support and install second rope winding wheel, the elasticity rope is around locating first rope winding wheel with on the second rope winding wheel.

Furthermore, a first rope winding groove for positioning the elastic rope is arranged on the outer peripheral surface of the first rope winding wheel, and/or a second rope winding groove for positioning the elastic rope is arranged on the outer peripheral surface of the second rope winding wheel.

Furthermore, the movable support is provided with a plurality of first rope winding wheels at intervals, the backpack support is correspondingly provided with a plurality of second rope winding wheels, and the elastic rope is alternately wound on the first rope winding wheels and the second rope winding wheels.

Furthermore, an inertial sensor for measuring the load state of the backpack body is arranged on the backpack support and is electrically connected with the controller.

The backpack provided by the invention has the beneficial effects that: compared with the prior art, the backpack provided by the invention has the advantages that the straps are separated from the backpack body by arranging the backpack bracket connected with the straps, the movable bracket for supporting and fixing the backpack body and the elastic element for connecting the movable bracket and the backpack bracket. In the process of the load walking movement of the human backpack, the linear slide rail assembly guides the movable support to move up and down on the backpack support, and the vibration amplitude generated by the up-and-down reciprocating movement of the movable support along with the backpack body is reduced under the action of the damping force of the elastic element, so that the impact force of the straps on the shoulders of the human body is buffered, and the compression force of the backpack on the shoulders is reduced. And the first electrostatic absorption piece that sets up on the knapsack support and the second electrostatic absorption piece that sets up on moving movable support produce the stiction after the circular telegram in order to form vibration damping in vertical direction, can effectively reduce human body and advance the vibration range of motion in-process knapsack body in vertical direction, can further alleviate the impact force that the shoulder bore to avoid shoulder muscle to cause fatigue damage betterly.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention, 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 perspective view of a backpack according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an explosive structure of a backpack according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a backpack support frame of the backpack according to the embodiment of the present invention;

FIG. 4 is a partially enlarged schematic view of FIG. 3;

FIG. 5 is a schematic structural diagram of a mobile support of the backpack according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a first rope winding wheel according to an embodiment of the present invention;

fig. 7 is a schematic view of a second rope winding wheel according to an embodiment of the present invention.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a backpack body; 11-a housing chamber; 2-a backpack support;

3-braces; 4-moving the support;

5-a linear sliding assembly; 51-a guide rail; 52-slide block.

6-an inertial sensor;

7-an electrostatic adsorption mechanism; 71-a first electrostatic adsorption sheet; 72-a second electrostatic adsorption sheet; 73-a fixed block; 74-a gravity sensor; 75-an adjustment assembly; 751-a linear slide rail; 752-moving block; 753-positioning members; 76-a controller;

8-a first rope winding wheel; 81-a first rope winding groove;

9-a second rope winding wheel; 91-a second rope winding groove;

10-shock absorbing cushion.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

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 invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, 2 and 3 together, the backpack of the present invention will now be described. The backpack provided by the invention comprises a backpack body 1 for loading heavy objects, a backpack support 2 for supporting the back of a human body, straps 3 connected with the backpack support 2, a movable support 4 for supporting and fixing the backpack body 1, a linear sliding assembly 5 for guiding the movable support 4 to move up and down on the backpack support 2, and an elastic element (not shown in the figure) which is connected with the backpack support 2 and the movable support 4 and has a damping and buffering effect, so that the vibration amplitude generated by the movable support 4 along with the up-and-down reciprocating motion of the backpack body 1 is reduced under the damping force action of the elastic element (not shown in the figure), the impact force of the straps 3 on the shoulders of the human body is buffered, and the compression force of the backpack on the shoulders is reduced. And an electrostatic adsorption mechanism 7 is arranged between the backpack support 2 and the movable support 4, so that the frictional damping between the backpack support 2 and the movable support 4 is adjusted through the electrostatic adsorption mechanism 7. Specifically, the electrostatic adsorption mechanism 7 includes a first electrostatic adsorption piece 71 disposed on the backpack support 2, a second electrostatic adsorption piece 72 that is electrostatically adsorbed and matched with the first electrostatic adsorption piece 71, and a controller 76 that controls the amount of electrostatic adsorption force between the first electrostatic adsorption piece 71 and the second electrostatic adsorption piece 72, and the second electrostatic adsorption piece 72 is disposed on the moving support 4. After the first electrostatic absorption sheet 71 and the second electrostatic absorption sheet 72 are electrified, static friction force is generated to form vibration damping in the vertical direction, so that the vibration amplitude of the backpack body 1 in the vertical direction in the process of human body advancing movement can be effectively reduced, the impact force borne by the shoulders can be further reduced, and the fatigue damage of the shoulder muscles can be better avoided.

Compared with the prior art, the backpack provided by the invention has the advantages that the backpack support 2 connected with the straps 3, the movable support 4 for supporting and fixing the backpack body 1 and the elastic element (not shown in the figure) for connecting the movable support 4 and the backpack support 2 are arranged, so that the straps 3 are separated from the backpack body 1. In the process of the human backpack load walking movement, the linear slide rail assembly guides the movable support 4 to move up and down on the backpack support 2, and through the action of damping force of an elastic element (not shown in the figure), the vibration amplitude generated by the up-and-down reciprocating movement of the movable support 4 along with the backpack body 1 is reduced, the impact force of the straps 3 on the shoulders of the human body is buffered, and the compression force of the backpack on the shoulders is reduced. In addition, the first electrostatic absorption sheet 71 arranged on the backpack support 2 and the second electrostatic absorption sheet 72 arranged on the movable support 4 generate static friction force after being electrified so as to form vibration damping in the vertical direction, so that the vibration amplitude of the backpack body 1 in the vertical direction in the process of human body advancing motion can be effectively reduced, the impact force born by the shoulder can be further reduced, and the fatigue damage caused by the shoulder muscle can be better avoided.

Specifically, referring to fig. 2, as an embodiment of the backpack provided by the present invention, the backpack body 1 is an approximately rectangular parallelepiped structure, and the inside of the backpack body 1 has an accommodating cavity 11 for accommodating a heavy object. Of course, the backpack body 1 may also be hemispherical, cylindrical or truncated cone-shaped, and the arrangement may be specifically selected according to actual needs, which is not limited herein.

Specifically, referring to fig. 2, fig. 3 and fig. 5 together, as a specific embodiment of the backpack provided by the present invention, the outline of the movable bracket 4 is plate-shaped, and the outline of the backpack bracket 2 is also plate-shaped, so as to reduce the overall volume of the backpack frame, and the plate-shaped movable bracket 4 and the plate-shaped backpack bracket 2 are arranged in parallel and at an interval, so as to improve the stability of the up-and-down reciprocating motion of the movable bracket 4 along with the backpack body 1, achieve balanced stress, facilitate effective buffering of the impulse of the backpack body 1 by an elastic element (not shown in the figure), reduce the vibration amplitude of the backpack, and reduce the pressing force of the shoulder straps 3 on the human body.

Specifically, referring to fig. 2, fig. 3 and fig. 5 together, as an embodiment of the backpack provided by the present invention, the linear sliding assembly 5 includes two guide rails 51 extending along the vertical direction respectively and two sliding blocks 52 slidably engaged with the two guide rails 51 respectively, the two guide rails 51 are disposed on the movable bracket 4 side by side at intervals, and the two sliding blocks 52 are fixedly connected with the backpack bracket 2 respectively.

In this embodiment, be provided with sharp subassembly 5 that slides between movable support 4 and knapsack support 2, sharp subassembly 5 that slides includes and sets up two guide rails 51 on knapsack support 2 and respectively with two fixed sliders 52 that link to each other of movable support 4 side by side and interval, two sliders 52 respectively with two guide rails 51 sliding fit, in the in-process of human knapsack load walking motion, sharp subassembly 5 that slides can lead to being fixed in knapsack body 1 on movable support 4, guide movable support 4 is along with knapsack body 1 up-and-down reciprocating motion, and knapsack support 2 supports in human back rigid, can avoid the friction at knapsack body 1 and human back, promote the comfort level of knapsack. Furthermore, the backpack body 1 can partially offset the deformation of the elastic element (not shown) with the movement of the movable support 4 on the linear slide rail 751, thereby indirectly reducing the pressure of the shoulder strap 3.

In addition, when the backpack body 1 moves downwards, the backpack body 1 can only move vertically downwards along the guide rail 51, the backpack body 1 can not pull the elastic element (not shown in the figure) left and right, the mechanical efficiency is increased, the pressing force of the shoulder straps 3 to the shoulder is buffered, the pressing force of the shoulder straps 3 to the shoulder and the floor-climbing force of the lower limbs to the ground are reduced, the fatigue feeling and the energy consumption of the human body caused by the human body are reduced, and the movement time and the load traveling distance are increased. In addition, the arrangement of the guide rail 51 and the slide block 52 ensures that the movable support 4 can only reciprocate up and down in the vertical direction, thereby enhancing the stability and reliability of the work, improving the mechanical efficiency and ensuring that the human body can obtain better comfort level when carrying the backpack to walk.

Of course, the number of the guide rails 51 may be 3 or 4, and the number is not limited here. Also, a plurality of sliders 52 may be provided on each guide rail 51 to improve stability. More specifically, the guide rail 51 is provided with a guide groove on the inner side thereof, and the slider 52 is provided with a dovetail block, a triangular block, a rectangular block, or the like on both sides thereof to be fitted with the guide groove.

Preferably, the elastic element (not shown in the figure) is an elastic rope or an elastic band with a large stiffness coefficient, wherein two annular elastic ropes or elastic bands are respectively used for connecting the movable bracket 4 and the backpack bracket 2, so that the movable bracket 4 and the backpack bracket 2 can be stably connected and can play a good damping and buffering role. Of course, the elastic element (not shown in the figures) may also be a spring or other elastic object made of elastic material, which is selected according to actual needs and is not limited herein.

Further, referring to fig. 2, as an embodiment of the backpack according to the present invention, a longitudinal direction of the first electrostatic absorption sheet 71 and a longitudinal direction of the second electrostatic absorption sheet 72 are perpendicular to each other.

In this embodiment, a rectangular electrostatic adsorption film is used as the first electrostatic adsorption sheet 71, and a rectangular electrostatic adsorption film is used as the second electrostatic adsorption sheet 72. The first electrostatic attraction sheet 71 is provided to extend in the vertical direction in the longitudinal direction thereof, the second electrostatic attraction sheet 72 is provided to extend in the horizontal direction in the longitudinal direction thereof, the longitudinal direction of the first electrostatic adsorption sheet 71 is perpendicular to the longitudinal direction of the second electrostatic adsorption sheet 72, the second electrostatic adsorption sheet 72 is perpendicular to and crossed with the first electrostatic adsorption sheet 71, even if the second electrostatic attraction sheet 72 and the first electrostatic attraction sheet 71 are stacked in a crisscross manner, the electrostatic attraction force generated by the first electrostatic attraction sheet 71 and the second electrostatic attraction sheet 72 after being electrified is preferably utilized, the vibration damping force is formed in the vertical direction, so that the movable bracket 4 and the backpack bracket 2 are not easy to slide relatively, the vibration amplitude of the backpack body 1 in the vertical direction in the process of human body advancing motion can be effectively reduced, the impact force born by the shoulder can be further reduced, so that the fatigue damage of the backpack to shoulder muscles is avoided. In addition, the adsorption force generated after the two second electrostatic adsorption pieces 72 and the first electrostatic adsorption piece 71 which are mutually crossed are electrified is very large, so that the static friction force can be increased, the static friction force can be changed by changing the input voltage, the damping of the electrostatic adsorption mechanism 7 can be dynamically adjusted, the vibration amplitude of the backpack body 1 in the vertical direction in the process of human body advancing motion can be reduced adaptively, the impact force borne by the shoulder can be further reduced, and the fatigue damage of the backpack to the shoulder muscle can be avoided.

Preferably, in order to further improve the electrostatic adsorption performance between the first electrostatic adsorption sheet 71 and the second electrostatic adsorption sheet 72 and achieve a good damping effect, the first electrostatic adsorption sheet 71 is formed by stacking at least two layers of electrostatic adsorption films, and the second electrostatic adsorption sheet 72 is formed by stacking at least two layers of electrostatic adsorption films. Wherein, the electrostatic adsorption film adopts an electrostatic adsorption film with good electrostatic adsorption performance.

In addition, the number of layers of the electrostatic adsorption film can be set according to the requirement for the electrostatic adsorption sheet of the electrostatic adsorption mechanism 7, that is, the first electrostatic adsorption sheet 71 can include two or more layers of electrostatic adsorption films, the second electrostatic adsorption sheet 72 can include two or more layers of electrostatic adsorption films, and the multiple layers of the first electrostatic adsorption sheets 71 and the multiple layers of the second electrostatic adsorption sheets 72 are mutually crossed and overlapped, which is beneficial to increasing the static friction force and providing a good electrostatic adsorption damping effect.

Further, referring to fig. 2 and fig. 3 together, as an embodiment of the backpack according to the present invention, the electrostatic absorption mechanism 7 further includes a fixed block 73 fixed on the backpack support 2 and a gravity sensor 74 connected to the fixed block 73, one end of the first electrostatic absorption sheet 71 in the length direction is connected to the gravity sensor 74, the other end of the first electrostatic absorption sheet 71 in the length direction is connected to the backpack support 2, and the gravity sensor 74 is electrically connected to the controller 76.

In this embodiment, a gravity sensor 74 for measuring the load weight of the backpack body 1 is connected to one end of the first electrostatic absorption sheet 71 in the length direction, so as to measure the load weight of the backpack body 1 through the gravity sensor 74, and the controller 76 is convenient to adjust the static friction force between the first electrostatic absorption sheet 71 and the second electrostatic absorption sheet 72 according to the load weight of the backpack body 1, so as to adjust the damping force generated by the electrostatic absorption film according to different load weights, thereby better adapting to the motion state of a user under different load weights, reducing the fatigue of shoulder muscles caused by the shoulder muscles and the ground treading force of lower limbs caused by the shoulder belt 3 impacting and pressing the shoulder, and reducing the energy consumption and fatigue feeling when the backpack is carried by a human body.

Further, referring to fig. 3 and fig. 4 together, as a specific embodiment of the backpack provided by the present invention, the electrostatic absorption mechanism 7 further includes an adjusting component 75 for adjusting a tightening degree of the first electrostatic absorption piece 71, the adjusting component 75 includes a linear slide rail 751 fixed on the backpack support 2, a moving block 752 slidably disposed on the linear slide rail 751 to pull the first electrostatic absorption piece 71, a positioning member 753 fixed on the backpack support 2, and a bolt (not shown in the figure) for pulling the moving block 752, the bolt is rotatably mounted on the positioning member 753, and a threaded hole matched with the connecting bolt is formed in the moving block 752. Specifically, the moving block 752 is provided with a sliding groove matched with the linear sliding rail 751, and the moving block 752 is slidably connected with the linear sliding rail 751 through the sliding groove. In addition, the moving block 752 is locked on the positioning piece 753 through a bolt or a bolt and a nut, so that the moving adjustment of the position of the moving block 752 on the linear sliding rail 751 is realized, the purpose of adjusting the tightening degree of the first electrostatic absorption sheet 71 is achieved, and the device is simple to operate, convenient and practical.

In this embodiment, the moving block 752 slidably disposed on the linear slide rail is linearly moved, the moving block 752 is guided by the linear slide rail to stretch the first electrostatic absorption piece 71, when the first electrostatic absorption piece 71 is adjusted to a proper tightening degree, the moving block 752 is locked on the positioning member 753 by a bolt to position the moving block 752 on the linear slide rail 751, so as to adjust the tightening degree of the first electrostatic absorption piece 71 according to actual use requirements, thereby the electrostatic absorption mechanism 7 forms a better damping effect, the vibration amplitude of the backpack body 1 in the vertical direction during the human body advancing movement process can be effectively reduced, the impact force borne by the shoulder can be further reduced, and fatigue damage to the shoulder muscles by the backpack can be avoided.

Further, referring to fig. 2, fig. 3 and fig. 5, as an embodiment of the backpack according to the present invention, a first rope winding wheel 8 is rotatably mounted on the movable bracket 4, a second rope winding wheel 9 is rotatably mounted on the backpack bracket 2, and the elastic rope is wound around the first rope winding wheel 8 and the second rope winding wheel 9.

In this embodiment, install first wire winding wheel 8 through the pivot on removing support 4, install second wire winding wheel 9 through the pivot simultaneously on knapsack support 2, respectively through first wire winding wheel 8 and second wire winding wheel 9 with the elastic rope movably around locating on removing support 4 and knapsack support 2, the installation and the change of the elastic rope of not only being convenient for, improve the installation and the change efficiency of elastic rope, still can further improve the damping buffering effect of elastic rope, effectively reduce the vibration range of knapsack, alleviate the oppression power of braces 3 to human shoulder.

Further, referring to fig. 6, as an embodiment of the backpack of the present invention, a first rope winding groove 81 for positioning the elastic rope is provided on the outer circumferential surface of the first rope winding wheel 8. In this embodiment, the first rope winding groove 81 is formed on the outer peripheral surface of the first rope winding wheel 8, so that the elastic rope is accommodated and positioned in the first rope winding groove 81, the elastic rope is prevented from slipping from the first rope winding wheel 8, the installation stability of the elastic rope is enhanced, and the elastic rope can have a good buffering effect. And, be convenient for through first rope winding wheel 8 with the elastic cord connect on the movable support 4 fast, convenient operation.

Further, referring to fig. 7, as an embodiment of the backpack of the present invention, a second rope winding groove 91 for positioning the elastic rope is provided on the outer circumferential surface of the second rope winding wheel 9. In this embodiment, the second rope winding groove 91 is formed in the outer peripheral surface of the second rope winding wheel 9, so that the elastic rope is accommodated and positioned in the second rope winding groove 91, the elastic rope is prevented from slipping from the second rope winding wheel 9, the installation stability of the elastic rope is enhanced, and the elastic rope can have a good buffering effect. And, be convenient for connect the stretch cord on knapsack support 2 support through second rope winding wheel 9 fast, convenient operation.

Further, referring to fig. 2, fig. 3 and fig. 5, as an embodiment of the backpack according to the present invention, a plurality of first rope winding wheels 8 are installed on the movable support 4 at intervals, a plurality of second rope winding wheels 9 are correspondingly installed on the backpack support 2, and the elastic rope is alternately wound around the first rope winding wheels 8 and the second rope winding wheels 9.

In this embodiment, a plurality of first rope winding wheels 8 are installed at the interval on removing support 4, correspond the interval simultaneously and install a plurality of second rope winding wheels 9 on knapsack support 2, the stretch cord is around locating on first rope winding wheel 8 and second rope winding wheels 9 in turn, carry out elastic connection with knapsack support 2 and removal support 4, the stability of being connected between knapsack support 2 and the removal support 4 has been strengthened, the equilibrium of atress when removal support 4 reciprocates on knapsack support 2 along with inclusion 1 is improved, thereby further improve shock attenuation buffering effect, reduce the vibration amplitude of knapsack, alleviate oppression power and the impact force of baldric 4 to human shoulder.

Further, referring to fig. 1 and fig. 2, as an embodiment of the backpack of the present invention, the backpack further includes a shock absorbing cushion 10 disposed on a side of the backpack support 2 away from the movable support 4, and two ends of the strap 3 are respectively fixedly connected to the shock absorbing cushion 10. In this embodiment, a shock absorbing cushion 10 is provided on the backpack support 2 to further reduce the vibration amplitude of the backpack. And, the shock pad adopts ventilative soft material to make to improve the comfort level of back.

Specifically, the shoulder straps 3 are two shoulder straps 3 provided on the shock absorbing cushion 10, but the shoulder straps 3 may be a shoulder strap 3 and a waist strap directly provided on the backpack support 2, or a shoulder strap 3, a waist strap and a leg strap provided on the backpack support 2. The specific value can be selected according to actual needs, and is not limited herein.

Further, referring to fig. 3, as an embodiment of the backpack provided by the present invention, the backpack support 2 is provided with an inertial sensor 6 for measuring a load state of the backpack body 1, and the inertial sensor 6 is electrically connected to the controller 76.

In this embodiment, set up inertial sensor 6 on knapsack support 2, load condition through inertial sensor 6 knapsack body 1 measures, the gesture of knapsack body 1 when acquireing human body and bear the knapsack walking motion, so that adjust the damping force that electrostatic absorption film produced according to the gesture adaptability of knapsack body 1 difference, adapt to user's motion state under the different condition better, alleviate braces 3 and assault oppression shoulder and lead to the tired and reduce the power of pedaling ground of low limbs to ground, thereby energy consumption and the tired sense when reducing human body and bear the knapsack walking.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A backpack, characterized in that: comprises a backpack body for loading articles, a backpack support for supporting the back of a human body, straps connected with the backpack support, a movable support for supporting and fixing the backpack body, a linear sliding component for guiding the movable support to move up and down on the backpack support, and an elastic element which is connected with the backpack support and the movable support and plays a role in damping and buffering, and an electrostatic adsorption mechanism for adjusting the frictional damping between the backpack support and the mobile support, the electrostatic adsorption mechanism comprises a first electrostatic adsorption sheet arranged on the backpack support and a second electrostatic adsorption sheet which is in electrostatic adsorption fit with the first electrostatic adsorption sheet, and the controller is used for controlling the electrostatic adsorption force between the first electrostatic adsorption piece and the second electrostatic adsorption piece, and the second electrostatic adsorption piece is arranged on the movable support.

2. The backpack of claim 1, wherein: the length direction of the first electrostatic absorption sheet is perpendicular to the length direction of the second electrostatic absorption sheet.

3. The backpack of claim 1, wherein: the electrostatic adsorption mechanism further comprises a gravity sensor connected with the backpack support, one end of the first electrostatic adsorption piece in the length direction is connected with the gravity sensor, the other end of the first electrostatic adsorption piece in the length direction is connected with the backpack support, and the gravity sensor is electrically connected with the controller.

4. The backpack of claim 3, wherein: the electrostatic adsorption mechanism further comprises an adjusting component for adjusting pressing force between the first electrostatic adsorption piece and the second electrostatic adsorption piece, the adjusting component comprises a linear slide rail fixed on the backpack support, a moving block arranged on the linear slide rail in a sliding mode and used for pulling the first electrostatic adsorption piece, a positioning piece fixed on the backpack support and a bolt used for pulling the moving block, the bolt is rotatably installed on the positioning piece, and a threaded hole matched with and connected with the bolt is formed in the moving block.

5. The backpack of claim 1, wherein: the first electrostatic absorption sheet is formed by overlapping at least two layers of electrostatic absorption films, and/or the second electrostatic absorption sheet is formed by overlapping at least two layers of electrostatic absorption films.

6. The backpack of claim 5, wherein: the elastic element is an elastic rope.

7. The backpack of claim 6, wherein: move and rotate on the support and install first rope winding wheel, rotate on the knapsack support and install second rope winding wheel, the elasticity rope is around locating first rope winding wheel with on the second rope winding wheel.

8. The backpack of claim 7, wherein: and a first rope winding groove for positioning the elastic rope is arranged on the peripheral surface of the first rope winding wheel, and/or a second rope winding groove for positioning the elastic rope is arranged on the peripheral surface of the second rope winding wheel.

9. The backpack of claim 7, wherein: the movable support is provided with a plurality of first rope winding wheels at intervals, the backpack support is correspondingly provided with a plurality of second rope winding wheels, and the elastic rope is alternately wound on the first rope winding wheels and the second rope winding wheels.

10. The backpack according to any one of claims 1 to 9, wherein: the backpack support is provided with an inertial sensor for measuring the load state of the backpack body, and the inertial sensor is electrically connected with the controller.