CN216875399U - Backpack - Google Patents

Abstract

The utility model provides a backpack, which comprises a backpack body and straps, wherein a sliding mechanism is arranged on the rear panel of the backpack body, and the straps are arranged on the sliding mechanism; the sliding mechanism comprises a sliding cavity, a sliding inner plate, a sliding outer plate, a guide shaft, a guide groove, an elastic piece and an upper limiting piece; the sliding cavity is arranged on the rear panel of the backpack body, the sliding inner plate is arranged in the sliding cavity in a sliding manner, and the guide groove is arranged on the side wall of the sliding cavity; one end of the guide shaft is fixedly arranged on the sliding outer plate, and the other end of the guide shaft penetrates through the guide groove to be fixedly connected with the sliding inner plate; one end of the upper limiting piece is fixedly connected with the backpack body, and the other end of the upper limiting piece is fixedly connected to the sliding outer plate; two ends of the braces are respectively and fixedly connected to the sliding outer plate; one end of the elastic piece is fixedly connected to the inner side wall of the sliding cavity, and the other end of the elastic piece is fixedly connected with the sliding inner plate; the backpack has the advantages that the burden of the backpack body on a user can be relieved during walking, and the burden relieving effect is good.

Description

Backpack

Technical Field

The utility model relates to the technical field of bags and bags, in particular to a backpack.

Background

The backpack is a daily necessity in life, generally carries more articles when going out, is very laboursome after long-term carrying time, is particularly heavier for students, can influence the body development of children after long-term heavy pressure, particularly has adverse effects on the spine compression of the children, is easy to cause fatigue when people carry the backpack outdoors in mountaineering, is very suitable for the needs of people, has various design schemes, some backpack is sold in the market, has good market reflection effect, has a common defect, is always rubbed with the back when the backpack floats up and down, has the main friction point of the waist position, and is very uncomfortable when clothes are worn less in summer or sweat occurs due to the fact that the backpack floats up and down, and has no isolation layer between the back of the backpack and the back of a human body, the backpack is directly rubbed on the back, such as: chinese patent application No. 2019208508867, bulletin date is 2020.04.07, a burden reduction suspension knapsack with precompression type flexonics system, the utility model discloses a through precompression elastic component reduction friction, though can solve above-mentioned frictional problem, new defect has nevertheless been brought, thereby because precompression elastic component includes compression spring and screens piece and slide rail and makes the structure too complicated, the cost is very high, its functional structure weight of itself that increases is heavier, it runs counter with the target of burden reduction, the burden effect is not enough to offset the weight of increase, can not play the effect of burden reduction on the whole.

In order to solve the technical problems, an elastic load-reducing backpack is disclosed in the patent document with the Chinese patent application number of 202023071978.7 and the publication number of 2021.07.13, belongs to the field of bags, and has a certain load-reducing effect: the backpack has the beneficial effects that the backpack is formed by connecting the back panel with the partition board, the horizontal displacement of the panel and the partition board is limited by the criss-cross insertion of the woven tape, the backpack can freely move in the vertical direction, the elastic tape generates elasticity, the backpack can fluctuate up and down when a human body moves, and the burden reduction effect is achieved: simple structure is light, owing to adopt the meshbelt to connect, and convenient processing accords with case and bag processing technology, and the cost is lower, weight is lighter, sets up spacing meshbelt and takes effect to the guard action of elastic webbing, extension knapsack life.

However, according to the technical scheme disclosed in the patent document, the braid is inserted vertically and horizontally between the back panel of the backpack and the partition plate to limit the horizontal displacement of the panel and the partition plate, so that when the backpack slides up and down relative to the partition plate, the braid on the partition plate and the braid on the back panel of the backpack generate a large friction force, thereby reducing the burden reduction effect of the elastic band on the backpack; meanwhile, the friction force between the woven belts on the partition board and the woven belts on the back panel of the backpack can drive the partition board to shake, so that part of the friction force can increase the burden on a user; in addition, the woven belts are easy to damage due to mutual friction for a long time, and the service life is short.

Disclosure of Invention

The utility model provides a backpack, which can relieve the burden of a backpack body on a user when the user walks by utilizing the structure of the backpack, and has good burden reduction effect and simple structure.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a backpack comprises a backpack body and straps, wherein a sliding mechanism is arranged on the rear panel of the backpack body, and the straps are arranged on the sliding mechanism; the sliding mechanism comprises a sliding cavity, a sliding inner plate, a sliding outer plate, more than one guide shaft, more than one guide groove and an elastic piece; the sliding cavity is arranged on the rear panel of the backpack body, the sliding inner plate is arranged in the sliding cavity in a sliding manner, and the guide groove is arranged on the side wall of the sliding cavity, which is far away from the backpack body; one end of the guide shaft is fixedly arranged on the sliding outer plate, and the other end of the guide shaft penetrates through the guide groove to be fixedly connected with the sliding inner plate; two ends of the strap are respectively and fixedly connected to the sliding outer plate; one end fixed connection of elastic component is on sliding chamber inside wall, and the other end and the sliding inner panel fixed connection of elastic component, when the knapsack body slided downwards for the sliding inner panel, the elastic component was in tensile state, and the guiding axle removes in the guide way.

According to the arrangement, when a user uses the backpack, the straps are fixedly connected with the sliding outer plate, and the backpack body and the sliding cavity slide up and down relative to the sliding inner plate and the sliding outer plate under the action of gravity, namely the backpack body slides up and down relative to the back of the user, and the guide shaft has a guide effect on the guide groove, so that the backpack body can slide up and down along the guide groove smoothly; when the backpack body slides downwards relative to the back of a user, the sliding cavity drives the elastic piece to stretch, and the burden of the backpack body on the user is relieved by the elastic action of the elastic piece during walking; in addition, the sliding fit formed by the guide shaft and the guide groove has good transmission effect, and the inertia of the backpack body is convenient to buffer through the elastic piece; meanwhile, the guide shaft and the guide groove are not easy to damage, the backpack can be lightened only by arranging the sliding cavity, the sliding inner plate, the sliding outer plate, the guide shaft and the guide groove, and the backpack is simple and reliable in structure.

Furthermore, a lower limiting piece for preventing the elastic piece from exceeding the elastic limit is arranged in the sliding cavity, one end of the lower limiting piece is fixedly connected to the inner side wall of the sliding cavity, and the other end of the lower limiting piece is fixedly connected to the sliding inner plate; therefore, the elastic piece can be better protected, and the service life of the sliding mechanism is prolonged.

Furthermore, an elastic pad is arranged on one side of the sliding outer plate far away from the backpack body, one end of the guide shaft far away from the limiting block sequentially penetrates through the elastic pad, the sliding outer plate and the guide groove to be fixedly connected with the sliding inner plate, and the outer side face of the limiting block is lower than the outer side face of the elastic pad close to the limiting block; above setting, the joint strength of guiding axle and slip planking can be strengthened to the stopper on the one hand, and on the other hand, the cushion is higher than the stopper setting on the slip planking, can prevent that stopper direct contact user's back from causing the discomfort.

Further, the elastic piece is elastic cloth or elastic rope.

Furthermore, one end of the upper limiting piece connected with the backpack body is fixedly connected between the back surface of the backpack body and the sliding cavity; therefore, the upper limiting piece is connected with the backpack body more stably.

Furthermore, one end of the strap is fixedly connected to the upper side of the sliding outer plate and is positioned on one side of the sliding outer plate close to the backpack body; the other end of the strap is fixedly connected with the inner side of the sliding outer plate.

Furthermore, one end of the upper limiting piece is fixedly connected with the backpack body, and the other end of the upper limiting piece is fixedly connected to the sliding outer plate; according to the arrangement, when the backpack body slides up and down relative to the back of a user, the backpack body drives one end of the upper limiting piece to move downwards together until the upper limiting piece is in a tight state, and the upper limiting piece can prevent the backpack body from sliding downwards beyond the limit and damaging the elastic piece; simultaneously go up the spacing piece and also can restrict when the knapsack body upwards slides for user's back to guarantee that the knapsack body slides from top to bottom in the range that sets up in advance for user's back, thereby in the range of upper limit limiting piece restriction, the burden of knapsack body to user when walking is slowed down through the elastic action of elastic component.

Furthermore, the guide groove is a through groove with a sliding cavity positioned on the side wall between the sliding inner plate and the sliding outer plate, the guide groove extends from the sliding outer plate to the direction of the sliding inner plate, and the width of the guide groove is greater than the diameter of the guide shaft; in this way, the guide shaft can be surely slid in the guide groove.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic cross-sectional view of the present invention with the elastic pad removed.

Reference numerals: 1. back panel; 2. a harness; 31. a sliding cavity; 32. sliding an inner plate; 33. a sliding outer plate; 34. a guide shaft; 341. a limiting block; 35. a guide groove; 36. an elastic member; 371. an upper limiting member; 372. a lower retainer; 38. an elastic pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 2, in the present embodiment, a backpack includes a backpack body and straps 2, a sliding mechanism is provided on a rear panel 1 of the backpack body, and the straps 2 are provided on the sliding mechanism.

The sliding mechanism comprises a sliding cavity 31, a sliding inner plate 32, a sliding outer plate 33, more than one guide shaft 34, more than one guide groove 35, an elastic piece 36 and an upper limiting piece 371; the sliding cavity 31 is arranged on the back panel 1 of the backpack body, the sliding inner plate 32 is arranged in the sliding cavity 31 in a sliding way, and the guide groove 35 is arranged on the side wall of the sliding cavity 31 far away from the backpack body; one end of the guide shaft 34 is fixedly arranged on the sliding outer plate 33, and the other end of the guide shaft 34 passes through the guide groove 35 to be fixedly connected with the sliding inner plate 32; in this embodiment, the sliding inner plate 32 is provided with a fixing groove corresponding to one end of the guide shaft 34, and is fixedly connected with one end of the guide shaft 34 through the fixing groove, and one end of the upper limiting piece 371 is fixedly sewn between the back surface of the backpack body and the sliding cavity 31; the other end of the upper stopper 371 is fixedly connected to the sliding outer plate 33; both ends of the strap 2 are respectively fixedly connected to the sliding outer plate 33; wherein, one end of the strap 2 is fixedly connected with the upper side of the sliding outer plate 33 and is positioned at one side of the sliding outer plate 33 close to the backpack body; the other end of the shoulder strap 2 is fixedly connected to the outside of the slide outer plate 33, and the guide shaft 34 moves in the guide groove 35.

One end of the elastic element 36 is fixedly connected to the inner side wall of the sliding cavity 31, the other end of the elastic element 36 is fixedly connected with the sliding inner plate 32, and when the backpack body slides downwards relative to the sliding inner plate 32, the elastic element 36 is in a stretching state; in this embodiment, one end of the elastic member 36 is fixedly connected to the bottom surface of the inner sidewall of the sliding chamber 31.

Wherein, the end of the guide shaft 34 connected with the sliding outer plate 33 is provided with a stopper 341 with an axial sectional area larger than that of the guide shaft 34, and the end of the guide shaft 34 far away from the stopper 341 sequentially passes through the sliding outer plate 33 and the guide groove 35 to be fixedly connected with the sliding inner plate 32.

With the above arrangement, when a user uses the backpack, the straps 2 are fixedly connected with the sliding outer plate 33, and the backpack body and the sliding cavity 31 slide up and down relative to the sliding inner plate 32 and the sliding outer plate 33 under the action of gravity, that is, the backpack body slides up and down relative to the back of the user, and the guide shaft 34 guides the guide groove 35, so that the backpack body can slide up and down along the guide groove 35 smoothly; when the backpack body slips downwards relative to the back of a user, the sliding cavity 31 drives the elastic piece 36 to stretch and generate elastic deformation, and meanwhile, the backpack body drives one end of the upper limiting piece 371 to move downwards together until the upper limiting piece 371 is in a tight state, and the upper limiting piece 371 can prevent the downward slippage of the backpack body from exceeding the limit and damaging the elastic piece 36; meanwhile, the upper limiting piece 371 can limit the backpack body to slide upwards relative to the back of the user so as to ensure that the backpack body slides up and down relative to the back of the user within a preset range, so that the burden of the backpack body on the user during walking is relieved by the elastic action of the elastic piece 36 within the range limited by the upper limiting piece 371; in addition, the sliding fit formed by the guide shaft and the guide groove has good transmission effect, so that the inertia of the backpack body is conveniently buffered by the elastic piece 36; meanwhile, the guide shaft and the guide groove are not easy to damage, the load of the backpack can be reduced only by arranging the sliding cavity 31, the sliding inner plate 32, the sliding outer plate 33, the guide shaft 34 and the guide groove 35, and the backpack is simple and reliable in structure.

A lower limiting piece 372 used for preventing the elastic piece 36 from exceeding the elastic limit is further arranged in the sliding cavity 31, one end of the lower limiting piece 372 is fixedly connected to the inner side wall of the sliding cavity 31, and the other end of the lower limiting piece 372 is fixedly connected to the sliding inner plate 32; in this embodiment, the elastic member 36 is an elastic cloth or an elastic rope, the lower limiting member 372 is a cloth belt, one end of the lower limiting member 372 is fixedly connected to the bottom surface of the inner side wall of the sliding cavity 31, and the length of the lower limiting member 372 is greater than the length of the elastic member 36 when being stretched; in this way, the elastic member 36 can be protected more effectively, and the service life of the slide mechanism can be increased.

The sliding outer plate 33 is further provided with an elastic pad 38 at one side far away from the backpack body, in this embodiment, one end of the guide shaft 34 far away from the stopper 341 sequentially passes through the elastic pad 38, the sliding outer plate 33 and the guide groove 35 to be fixedly connected with the sliding inner plate 32, and the outer side surface of the stopper 341 is lower than the outer side surface of the elastic pad 38 near the stopper 341; the elastic pad 38 is made of sponge or elastic plastic; with the above arrangement, on the one hand, the stopper 341 can reinforce the connection strength between the guide shaft 34 and the slide outer plate 33, and on the other hand, the elastic pad 38 is disposed higher than the stopper 341 on the slide outer plate 33, which can prevent discomfort caused by the stopper 341 directly contacting the back of the user.

The guide groove 35 is a through groove on the side wall of the sliding cavity 31 between the sliding inner plate 32 and the sliding outer plate 33, the guide groove 35 extends from the sliding outer plate 33 to the direction of the sliding inner plate 32, and the width of the guide groove 35 is larger than the diameter of the guide shaft 34; in this way, the guide shaft 34 can be surely slid in the guide groove 35.

Claims (8)

1. The utility model provides a backpack, includes knapsack body and braces, its characterized in that: the back of the backpack body is provided with a sliding mechanism, and the straps are arranged on the sliding mechanism;

the sliding mechanism comprises a sliding cavity, a sliding inner plate, a sliding outer plate, more than one guide shaft, more than one guide groove and an elastic piece; the sliding cavity is arranged on the rear panel of the backpack body, the sliding inner plate is arranged in the sliding cavity in a sliding manner, and the guide groove is arranged on the side wall of the sliding cavity, which is far away from the backpack body; one end of the guide shaft is fixedly arranged on the sliding outer plate, and the other end of the guide shaft penetrates through the guide groove to be fixedly connected with the sliding inner plate; two ends of the strap are respectively and fixedly connected to the sliding outer plate; one end fixed connection of elastic component is on sliding chamber inside wall, and the other end and the sliding inner panel fixed connection of elastic component, when the knapsack body slided downwards for the sliding inner panel, the elastic component was in tensile state, and the guiding axle removes in the guide way.

2. A backpack according to claim 1, wherein: the sliding cavity is also internally provided with a lower limiting piece for preventing the elastic piece from exceeding the elastic limit, one end of the lower limiting piece is fixedly connected to the inner side wall of the sliding cavity, and the other end of the lower limiting piece is fixedly connected to the sliding inner plate.

3. A backpack according to claim 1, wherein: the outer sliding plate is further provided with an elastic pad on one side far away from the backpack body, one end of the guide shaft far away from the limiting block sequentially penetrates through the elastic pad, the outer sliding plate and the guide groove to be fixedly connected with the inner sliding plate, and the outer side face of the limiting block is lower than the outer side face of the elastic pad close to the limiting block.

4. A backpack according to claim 2, wherein: the elastic piece is elastic cloth or elastic rope.

5. A backpack according to claim 1, wherein: one end of the upper limiting piece connected with the backpack body is fixedly connected between the back surface of the backpack body and the sliding cavity.

6. A backpack according to claim 1, wherein: one end of the strap is fixedly connected with the upper side of the sliding outer plate and is positioned on one side of the sliding outer plate close to the backpack body; the other end of the strap is fixedly connected with the inner side of the sliding outer plate.

7. A backpack according to claim 1, wherein: go up spacing one end and knapsack body fixed connection, go up the other end fixed connection of spacing piece on the slip planking.

8. A backpack according to claim 1, wherein: the guide groove is a through groove with a sliding cavity positioned on the side wall between the sliding inner plate and the sliding outer plate, the guide groove extends from the sliding outer plate to the sliding inner plate, and the width of the guide groove is larger than the diameter of the guide shaft.

Images