CN214547930U

CN214547930U - Shock attenuation knapsack

Info

Publication number: CN214547930U
Application number: CN202120563754.3U
Authority: CN
Inventors: 李雨楠; 毛剑峰; 朱耀坤; 斯梓展; 董浩天; 彭小伟; 缪骏豪; 褚熠; 刘泽琨; 余浩庆
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-02
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a shock attenuation knapsack, include: the bag comprises a bag body, wherein a first sliding assembly is arranged on one side wall of the bag body; a second slide assembly slidably coupled to the first slide assembly; the first elastic piece and the second elastic piece are arranged between the first sliding assembly and the second sliding assembly, and the length of the first elastic piece is larger than that of the second elastic piece. In the application, a first elastic piece and a second elastic piece are arranged between the first sliding component and the second sliding component, and when the backpack body vibrates up and down, the first sliding component and/or the second sliding component can be stretched to buffer, so that the amplitude of the backpack can be eliminated; the amplitude and the elasticity can be adjusted by adjusting the position of the adjusting plate.

Description

Shock attenuation knapsack

Technical Field

The utility model relates to a case and bag technical field especially relates to a shock attenuation knapsack.

Background

For a common backpack, when the backpack is stationary, the force exerted on the body by the backpack is only static and is equal to the weight of the backpack. However, when walking or running while wearing the backpack, the peak force exerted on the body can increase significantly to 2-3 times greater than the static force, and this increase in peak force can exert very large forces on the joints, resulting in muscle damage and even joint injury.

Studies have shown that peak forces are related to the rolling motion of the buttocks. The heaving motion of the hips during travel can result in vertical motion of the backpack. If vertical movement of the backpack is desired, the body exerts an acceleration force on the backpack. In turn, the backpack also exerts a downward force on the shoulders and body. This downward force will cause the ground to react more to the foot when the foot is in contact with the ground than at rest, thereby increasing the force on the joint. This also increases the energy consumption of the wearer when walking, greatly increasing the physical burden.

Therefore, the peak force acting on the bearer can be reduced by reducing the vertical displacement amplitude of the backpack, and the energy consumption during walking can be reduced, so that the burden of the bearer is reduced. The carrier can thus bear a greater weight with the same metabolic expenditure during a quick walk, while reducing the stress on the joints and avoiding muscle damage.

The existing load-reducing backpack can achieve the load-reducing effect, but still has the following problems: when the mass in the bag changes greatly, the vertical amplitude of the backpack and the force applied to the wearer change obviously, and the comfort level of the backpack is greatly reduced.

Disclosure of Invention

The above-mentioned not enough to prior art, the utility model aims to solve the technical problem that a shock attenuation knapsack lies in for knapsack arouses the amplitude change to lead to the comfort level variation scheduling problem because of the quality variation among the solution prior art.

The utility model provides a technical scheme that its technical problem adopted is a shock attenuation knapsack, include:

the bag comprises a bag body, wherein a first sliding assembly is arranged on one side wall of the bag body;

a second slide assembly slidably coupled to the first slide assembly;

the first elastic piece and the second elastic piece are arranged between the first sliding assembly and the second sliding assembly, and the length of the first elastic piece is larger than that of the second elastic piece.

Further, the first slide assembly includes: the guide rail is arranged on the side wall of the bag body, and the length direction of the guide rail is consistent with the height direction of the bag body; the adjusting plate is arranged on the guide rail in a sliding mode and can be locked at multiple positions on the guide rail;

the second slide assembly includes: a back plate; the base is fixedly connected with the back plate and can slide along the length direction of the guide rail;

one end of the first elastic piece is fixed on the adjusting plate, and the other end of the first elastic piece is abutted to or detached from the base; one end of the second elastic piece is fixed on the adjusting plate, and the other end of the second elastic piece is abutted to or detached from the base.

Further, the first elastic piece comprises a first spring, one end of the first spring is fixedly connected with the adjusting plate, and the other end of the first spring is abutted to or detached from the base;

the second elastic piece comprises a second spring, one end of the second spring is fixedly connected with the adjusting plate, and the other end of the second spring is abutted or dissociated.

Further, the length of the first spring is greater than that of the second spring, and the elastic coefficient of the first spring is smaller than that of the second spring.

Furthermore, the second spring is spirally arranged, and an accommodating space arranged along the length direction of the second spring is formed inside the second spring; the first spring is located in the accommodating space, and the first spring can stretch and contract in the accommodating space along the length direction of the second spring.

Further, first slip subassembly is provided with four guide rails that are parallel to each other, just four recesses, every have been seted up to the regulating plate the recess all laminates with a guide rail.

Furthermore, each guide rail comprises an adjusting section and a sliding section, the adjusting section is connected with the sliding section, and the thickness of the adjusting section is smaller than that of the sliding section;

the adjusting plate can slide along the adjusting section and be locked at any position of the adjusting section.

Further, the base comprises a bottom plate and three sliding strips fixedly connected to the bottom plate, and the three sliding strips are parallel to each other;

a sliding groove is formed between any two adjacent guide rails, and each sliding strip is located in the sliding groove and slides along the sliding groove.

Further, the upper end of the back plate is provided with a fixing hole for mounting a strap.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

(1) the first elastic piece and the second elastic piece are arranged between the first sliding assembly and the second sliding assembly, and when the backpack body vibrates up and down, the telescopic first sliding assembly and/or the telescopic second sliding assembly buffer to eliminate the amplitude of the backpack.

(2) The length of first elastic component is greater than the length of second elastic component, and when the inclusion fluctuation is less, first elastic component of independently stretching out and drawing back, when the fluctuation of inclusion is great, first elastic component and second elastic component that can stretch out and draw back simultaneously, the initial section damping is softer when having realized the inclusion fluctuation, and the damping of back section is harder for when the inclusion shakes from top to bottom, the body of the wearer feels better.

(3) The amplitude and the elasticity can be adjusted by adjusting the position of the adjusting plate.

Drawings

FIG. 1 is a schematic structural view of a shock-absorbing backpack in an embodiment;

FIG. 2 is a schematic structural diagram of a bag body and a first sliding assembly in an embodiment;

FIG. 3 is a schematic structural view of a second sliding assembly according to an embodiment;

FIG. 4 is a schematic structural diagram of an adjusting plate, a base and a guide rail in the embodiment;

FIG. 5 is a schematic structural view of an adjustment plate according to an embodiment;

FIG. 6 is a schematic structural view of a first spring and a second spring in an embodiment;

in the figure:

100. a bag body;

200. a first slide assembly; 210. a guide rail; 211. an adjustment section; 212. a sliding section; 220. an adjusting plate; 221. a groove;

300. a second slide assembly; 310. a back plate; 311. a fixing hole; 320. a base; 321. a base plate; 322. a slide bar;

400. a harness;

500. a first spring;

600. a second spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Referring to fig. 1-6, the utility model discloses a shock-absorbing backpack, including:

the bag comprises a bag body 100, wherein a first sliding assembly 200 is arranged on one side wall of the bag body 100;

a second slider assembly 300 slidably coupled to the first slider assembly 200;

the first elastic member and the second elastic member are both disposed between the first sliding assembly 200 and the second sliding assembly 300, and the length of the first elastic member is greater than that of the second elastic member.

Specifically, a first elastic member and a second elastic member are arranged between the first sliding assembly 200 and the second sliding assembly 300, and when the bag body 100 vibrates up and down, the telescopic first sliding assembly 200 and/or the second sliding assembly 300 buffer to eliminate the vibration amplitude of the bag body 100; and, because the length of first elastic component is greater than the length of second elastic component, when inclusion 100 floated from top to bottom less, the first elastic component that stretches out and draws back alone, when the fluctuation of inclusion 100 was great, first elastic component and second elastic component that can stretch out and draw back simultaneously, consequently, realized in this embodiment that inclusion 100 floated from top to bottom the primary damping is softer, and the damping of back segment is harder for when inclusion 100 shakes from top to bottom, the body of the wearer is felt better.

Further, the first sliding assembly 200 includes: at least one guide rail 210, which is arranged on the side wall of the bag body 100, and the length direction of the guide rail 210 is consistent with the height direction of the bag body 100; an adjusting plate 220 slidably disposed on the guide rail 210, and the adjusting plate 220 can be locked at a plurality of positions on the guide rail 210;

the second slider assembly 300 includes: a back plate 310; the base 320, the base 320 is fixedly connected with the back plate 310, and the base 320 can slide along the length direction of the guide rail 210;

one end of the first elastic member is fixed on the adjusting plate 220, and the other end of the first elastic member abuts against or is free from the base 320; one end of the second elastic member is fixed on the adjusting plate 220, and the other end of the second elastic member abuts against or is free from the base 320.

Specifically, the length direction of the guide rail 210 is consistent with the up-and-down vibration direction of the bag body 100, and when the bag body 100 has a tendency of moving up and down, the first elastic member will be stretched (or the first elastic member and the second elastic member will be stretched at the same time), that is, the tendency of the bag body 100 to move up and down is resolved into sliding between the first sliding member and the second sliding member, so as to unload the vibration of the bag body 100.

It can be understood that when the mass in the bag body 100 changes, the amplitude of the vibration will change, resulting in poor feeling of the wearer. Therefore, in this embodiment, the position of the adjusting plate 220 in the length direction of the guide rail 210 is adjustable, so as to adjust the pre-compression stroke of the first elastic member and the second elastic member, thereby achieving the purpose of changing the amplitude of the first elastic member and the second elastic member.

First, after increasing the precompression stroke of the first elastic element, the stroke of the first elastic element that can be compressed is shortened accordingly, and then the vibration amplitude of the first elastic element compressed when the bag body 100 floats is reduced accordingly, and then the adjustment of the amplitude is realized through the position adjustment of the adjusting plate 220.

Secondly, before adjusting the adjusting plate 220, only the first elastic member acts, and the elastic force provided by the elastic member is smaller, and after adjusting the adjusting plate 220, the first elastic member and the second elastic member act simultaneously, and the elastic force provided is larger, so that the adjusting plate 220 can also adjust the elastic force provided by the elastic member in a sliding manner.

Further, the first elastic member includes a first spring 500, one end of the first spring 500 is fixedly connected with the adjusting plate 220, and the other end of the first spring 500 abuts against or is free from the base 320;

the second elastic member includes a second spring 600, one end of the second spring 600 is fixedly connected to the adjusting plate 220, and the other end of the second spring 600 is abutted or detached.

Further, the length of the first spring 500 is greater than the length of the second spring 600, and the elastic coefficient of the first spring 500 is smaller than the elastic coefficient of the second spring 600.

Specifically, when the bag body 100 drives the adjusting plate 220 to float up and down, the adjusting plate acts on the first spring 500 first, and at this time, the elastic force is weak, and when the amplitude is large, the second spring 600 acts together with the first spring 500 to provide a larger elastic force, thereby playing a role in restraining the amplitude of the bag body 100.

It should be noted that, because the elastic coefficient of the second spring 600 is greater than that of the first spring 500, when the second spring 600 starts to be compressed (i.e. when the first spring 500 and the second spring 600 act simultaneously), the elastic force that can be provided is more than twice as much as the elastic force when the first spring 500 acts alone, so that once the second spring 600 starts to act, the provided elastic force is increased in multiples, and a better effect of suppressing the amplitude is achieved.

Further, the second spring 600 is spirally disposed, and an accommodating space disposed along a length direction of the second spring 600 is formed inside the second spring 600; the first spring 500 is located in the accommodating space, and the first spring 500 can extend and contract in the accommodating space along the length direction of the second spring 600.

Specifically, the radius of the first spring 500 is smaller than that of the second spring 600, so that the first spring 500 can be accommodated in the accommodating space of the second spring 600, and further, the space occupied by the elastic member is reduced, and the volume of the whole backpack is reduced.

Further, the first sliding assembly 200 is provided with four guide rails 210 parallel to each other, and the adjusting plate 220 is provided with four grooves 221, each of the grooves 221 is attached to one of the guide rails 210.

Further, each of the guide rails 210 comprises an adjusting section 211 and a sliding section 212, the adjusting section 211 is connected with the sliding section 212, and the thickness of the adjusting section 211 is smaller than that of the sliding section 212;

the adjusting plate 220 can slide along the adjusting segment 211 and be locked at any position of the adjusting segment 211.

Further, the base 320 includes a bottom plate 321 and three sliding bars 322 fixedly connected to the bottom plate 321, and the three sliding bars 322 are parallel to each other;

a sliding groove is formed between any two adjacent guide rails 210, and each sliding strip 322 is located in and slides along the sliding groove.

Further, the upper end of the back plate 310 is provided with a fixing hole 311 for mounting the back belt 400.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A shock absorbing backpack, comprising:

a second slide assembly slidably coupled to the first slide assembly;

2. The shock absorbing backpack of claim 1, wherein said first slide assembly comprises: the guide rail is arranged on the side wall of the bag body, and the length direction of the guide rail is consistent with the height direction of the bag body; the adjusting plate is arranged on the guide rail in a sliding mode and can be locked at multiple positions on the guide rail;

3. The shock-absorbing backpack as set forth in claim 2, wherein the first elastic member comprises a first spring, one end of the first spring is fixedly connected to the adjusting plate, and the other end of the first spring abuts against or is free from the base;

4. The shock absorbing backpack of claim 3, wherein the length of said first spring is greater than the length of said second spring, and the spring rate of said first spring is less than the spring rate of said second spring.

5. The shock-absorbing backpack as set forth in claim 3, wherein the second spring is spirally disposed and has an accommodating space formed therein along a length direction of the second spring; the first spring is located in the accommodating space, and the first spring can stretch and contract in the accommodating space along the length direction of the second spring.

6. The damping backpack according to any one of claims 2 to 5, wherein the first sliding assembly is provided with four parallel guide rails, and the adjusting plate is provided with four grooves, each of which is attached to one of the guide rails.

7. The shock absorbing backpack of claim 6, wherein each of said guide rails comprises an adjustment section and a sliding section, said adjustment section being connected to said sliding section and said adjustment section having a thickness less than a thickness of said sliding section;

8. The shock absorbing backpack of claim 6, wherein said base comprises a bottom plate and three slide bars fixedly attached to said bottom plate, and wherein said three slide bars are parallel to each other;

9. The shock-absorbing backpack as set forth in claim 2, wherein the back plate is provided at an upper end thereof with fixing holes for mounting straps.