CN219629046U

CN219629046U - Suspension load-reducing schoolbag

Info

Publication number: CN219629046U
Application number: CN202320254592.4U
Authority: CN
Inventors: 彭碧华; 李亚鑫
Original assignee: Zhejiang Xier Technology Co Ltd
Current assignee: Zhejiang Xier Technology Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-09-05
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses a suspension load-reducing schoolbag which comprises a body, a strap assembly, a hard support plate and a back protection plate, wherein the strap assembly is arranged on the back of the body; the utility model provides a braces subassembly includes braces, hard supporting shoe, elastic band and spacing area, the lower extreme and the body back of braces can be dismantled and be connected, the upper end of the upper end that the upper end of braces was equipped with hard supporting shoe stretches into in the longitudinal rail with the upper end of elastic band, the upper end of spacing area is connected respectively, the lower extreme of elastic band, the lower extreme of spacing area are connected with the body back respectively. The two independent strap assemblies are utilized to independently load and buffer the left side and the right side of the schoolbag, so that the pressure of the shoulder strap on the shoulder in the moving process of the human body is reduced.

Description

Suspension load-reducing schoolbag

Technical Field

The utility model belongs to the technical field of stationery, and particularly relates to a suspension load-reducing schoolbag.

Background

The schoolbag is a knapsack for carrying textbooks and stationery in daily life. The common schoolbag is a double-shoulder schoolbag, and the back surface of the backpack is provided with two belts used for being buckled on the shoulders. Because the shoulder straps are the main parts of the knapsack when people carry the knapsack on both shoulders during the moving process of the human body; in the static state of the human body, the pressure of the shoulder strap to the shoulder is close to the gravity of the knapsack; in the process of walking of a human body, because the shoulder has acceleration in a vertical mode, the shoulder strap is generally not provided with elasticity, and the shoulder strap and the knapsack almost synchronously move, the pressure generated by the shoulder strap on the shoulder strap is larger than the gravity of the knapsack, and after the knapsack with a heavy object is carried for a long time, the shoulder of the human body is easy to generate strain.

In chinese patent publication No. CN109820326 a, a dynamic relief backpack is disclosed, comprising: the storage device comprises a storage main body, an elastic buffer belt connected with the storage main body, a pressure reducing plate connected with the elastic buffer belt, a limit belt connected with the pressure reducing plate and a shoulder belt connected with the lower part of the storage main body and the upper part of the pressure reducing plate; a backboard is arranged on one side of the storage main body; the elastic buffer belt is connected between the lower side of the backboard and the decompression board; the backboard is connected with a transverse positioning belt, and a positioning groove is formed between the transverse positioning belt and the backboard; the limiting belt is arranged in the positioning groove in a penetrating way; the transverse positioning belt is positioned between the limiting belt and the pressure reducing plate; the limiting belt is provided with an upper fixed end and a lower fixed end, and the decompression plate is provided with an upper installation part connected with the upper fixed end and a lower installation part connected with the lower fixed end; the distance between the upper mounting portion and the lower mounting portion of the pressure reducing plate is less than or equal to the maximum stretching length of the elastic buffer belt. In the dynamic load reducing knapsack of the structure, two shoulder straps are connected to a common pressure reducing plate and a limiting strap, the lower end of the pressure reducing plate is connected to the storage main body through an elastic buffer strap, and the pressure reducing plate is simultaneously connected with the two shoulder straps, so that the movement of the shoulder straps at two sides can be limited simultaneously when people slide up and down in the process of carrying the knapsack. When the weights of the left side and the right side of the backpack are unbalanced, the pressure reducing plate is biased to one side, so that the situation that one side of the two sides is possibly not well attached to the shoulder part occurs.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a suspension load-reducing schoolbag, which utilizes two independent strap assemblies to independently load and buffer the left side and the right side of the schoolbag, so that the pressure of shoulder straps on shoulders in the process of moving a human body is reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a suspension relief schoolbag, includes the body, locates braces subassembly, hard support board and the back of body, back fixed connection is protected back, hard support board, body back in proper order, the left and right sides of back is protected and is equipped with the hard board of evagination, the space between hard board and the hard support board forms longitudinal track; the utility model provides a braces subassembly includes braces, hard supporting shoe, elastic band and spacing area, the lower extreme and the body back of braces can be dismantled and be connected, the upper end of the upper end that the upper end of braces was equipped with hard supporting shoe stretches into in the longitudinal rail with the upper end of elastic band, the upper end of spacing area is connected respectively, the lower extreme of elastic band, the lower extreme of spacing area are connected with the body back respectively.

Further, the length of the limiting belt is larger than that of the elastic belt in a normal state, and the maximum stretching stroke of the elastic belt is larger than or equal to the length difference between the limiting belt and the elastic belt.

Further, the width of the elastic belt or the limit belt is smaller than that of the rigid supporting block or the longitudinal rail.

Further, the two hard plates are not connected near the center side, and the area of the ridge protection plate between the two hard plates forms a longitudinal ventilation channel.

Further, the joint of the hard plate and the ridge protection plate is in arc transition.

Further, an elastic layer is arranged on the inner side surface of the brace.

Further, the utility model also comprises a back strap connecting strap with one end connected with the upper end of the back strap and elasticity, and the other end of the back strap connecting strap is connected with the back of the body.

Further, the braces subassembly is still including locating the fastener of braces lower extreme, the braces lower extreme through the fastener with the lower connecting band of body back can dismantle the connection.

Further, the ridge protection plate is provided with a ridge protection protruding block on the upper side of the back surface of the hard plate; and/or the lower side of the back of the hard plate, which is provided with waist support protruding blocks, is provided with the back support rib plate.

Further, the upper end of the body is provided with a knapsack handle.

By adopting the technical scheme of the utility model, the beneficial effects of the utility model are as follows: the two independent shoulder strap assemblies are utilized to reduce the pressure of the shoulder straps to the shoulders when people wear the suspension load-reducing schoolbag in the running process, and the two independent shoulder strap assemblies do not interfere with each other; the inner side surface of the brace is designed with an elastic layer, and the elastic layer provides a buffering acting force when being attached to the shoulder of a human body; the ventilation channels are arranged, so that the back of a human body can be radiated and ventilated, heat accumulation on the back is avoided, and the use comfort is improved; the ridge protection convex blocks and the waist protection convex blocks can effectively support and protect the back and the waist of a human body.

Drawings

Figure 1 is a perspective view of a suspended load reducing school bag;

FIG. 2 is a perspective view of the harness assembly;

fig. 3 is a perspective view of a back guard;

FIG. 4 is a perspective view of the body;

figure 5 is a cross-sectional view of a suspended load reducing school bag.

In the figure: the backpack comprises a body 1, a backpack handle 11, a hard support plate 12, a back surface of the body 13, a spine protection plate 2, a spine protection convex block 21, a waist protection convex block 22, a hard plate 23, a ventilation channel 24, edges 25, a central line 26, a back belt 3, a back belt upper end 31, a back belt lower end 32, a hard support block 33, an elastic belt 34, a limit belt 35, a back side 36, a back belt 4, a back belt 5, a back belt 6, a longitudinal rail 7 and a fastener 7.

Description of the embodiments

The technical scheme of the utility model is further described and illustrated by the following specific examples so as to make the utility model more clear and obvious. Other advantages and effects of the present utility model will be readily apparent to those skilled in the art from the present disclosure. The utility model is capable of other and different embodiments and its several details are capable of modification and variation in various respects, all without departing from the spirit of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

As shown in fig. 1-5, the present embodiment relates to a suspension load reducing schoolbag, which integrally includes a main body 1, a back protection plate 2, a back strap assembly, a back strap connecting strap 4, a lower connecting strap 5, etc., wherein the back strap assembly, the back protection plate 2, the back strap connecting strap 4, and the lower connecting strap 5 are all arranged on the back surface 13 of the main body. The strap assembly comprises a strap 3, a rigid support block 33, an elastic strap 34 and a strap limiting strap 35.

The back guard 2 and the hard support plate 12 of the present embodiment are sequentially fixed on the back 13 of the main body 1, specifically, the left and right edges 25 and the center line 26 of the back guard are fixed on the hard support plate 12, and the whole back guard 2 has a structure of bilateral symmetry. The left side and the right side of the ridge protection plate 2 are respectively provided with a convex hard plate 23, and the space between the hard plate 23 and the back 13 of the body forms a longitudinal track 6. The hard support plate 12 and the spine protection plate 2 of this embodiment are fixed together, and since the hard support plate 23 and the hard support plate 12 on the body 1 are both rigid structures, the space between them provides a vertical track for the hard support blocks 33 of the back strap 3, so as to ensure that the back carrying system of the whole schoolbag can float along the vertical direction of the track.

The braces 3 in the braces subassembly set up in the outside of rib board 2, and the upper end of braces 3 is equipped with the part of rigid support piece 33 and stretches into longitudinal rail 6, and is connected simultaneously with the upper end of the elastic webbing 34 in the longitudinal rail 6, the upper end of spacing area 35, the lower extreme of elastic webbing 34, the lower extreme of spacing area 35 are connected with body back 13 respectively, the lower extreme of braces 3 can be dismantled with the downside of body back 13 and be connected. Because the hard supporting blocks 33 are arranged at the positions of the braces 3 in the longitudinal rails 6, when people walk with the schoolbag with the shoulders carried on the back for suspension and load reduction, the shoulder straps 3 are periodically changed in height up and down along with the walking of the human body, the hard supporting blocks 33 are driven to slide up and down on the longitudinal rails 6, and then the elastic bands 34 are also stretched up and down or retracted.

The length of the limiting belt 35 is larger than that of the elastic belt 34 in a normal state, and the maximum stretching stroke which can be borne by the elastic belt 34 is larger than or equal to the length difference between the limiting belt 35 and the elastic belt 34, so that the elastic belt is effectively prevented from being excessively stretched to lose elasticity, and the weight reduction function of the schoolbag is kept for a long time. For example, the elastic belt has a length L1 in a normal state, a maximum length capable of withstanding stretching is L2, L2 > L1, the length of the stopper belt is L3, and the maximum stretching stroke of the elastic belt, that is, the difference between L2 and L1, is greater than (or equal to) the difference between L3 and L1.

In order to facilitate the up-and-down pulling and retraction, the width of the elastic band 34 or the limit band 35 is smaller than the width of the rigid support block 33 or the longitudinal rail 6 in this embodiment.

Because the schoolbag is carried on the back of the human body, the heat dissipation can be carried out in the contact process of the human body and the backpack in the walking process, the two hard plates are not connected near the central side, and the area of the ridge protection plate between the two hard plates forms a longitudinal ventilation channel 24, so that the heat dissipation and ventilation are facilitated, the heat accumulation of the back is avoided, and the use comfort is improved.

The arc transition at the joint of the hard plate 23 and the ridge protection plate 2 enables the hard plate edge to be attached more smoothly and comfortably when attached to the back of a human body.

An elastic layer is arranged on the inner side surface 36 of the back strap 3, and the elastic layer can be made of sponge, silica gel and other materials.

In order to enhance the installation firmness between the upper end 31 of the back strap and the body 1, the suspension load reducing schoolbag of the embodiment further comprises a back strap connecting strap 4 with one end connected to the upper end 31 of the back strap, the back strap connecting strap 4 is made of elastic materials (especially high elastic materials such as rubber, etc.), and the other end of the back strap connecting strap 4 is connected to the back face 13 of the body.

The strap assembly further comprises a fastener 7 arranged at the lower end 32 of the strap, and the lower end 32 of the strap is detachably connected with the lower connecting strap 5 of the back 13 of the body through the fastener 7.

The back that rib board 2 is located hard board 23 is equipped with rib lug 21 on the face that laminating human back is located the rib board 2 is located the back downside of hard board 23 and is equipped with waist support lug 22, and the outline that rib lug 21 adopted adopts rectangular shape, and waist support lug 22 adopts circularly, and its longitudinal length is greater than the length of waist support lug 22. The back and waist of the human body are effectively supported and protected by the ridge protection convex blocks 21 and the waist protection convex blocks 22.

In this embodiment, the two shoulder strap assemblies are independent, and do not interfere with each other by implementing a float relief function through the upper ends of the shoulder straps. When the backpack system has a locally uneven weight on the side, the strap assembly is two independent suspension function systems, so that the strap assembly can adapt to different weights on two sides, the length of the elastic strap 34 can be adjusted, the lower end 32 of the strap is connected with the backpack body 1, and when a person walks, the person has a certain float in front and back, and the strap assembly is changed through the elasticity of the lower connecting strap, so that the whole shoulder cannot receive a strong extrusion process.

In order to facilitate carrying and taking, the embodiment provides another way of carrying the backpack, and a backpack handle 11 is arranged at the upper end of the body 1, so that the whole suspended load-reducing schoolbag can be held by one hand.

The main implementation principle of the suspension load-reducing schoolbag of the embodiment is as follows: when the whole backpack is carried on a human body, the whole weight of the backpack is distributed on the shoulders of the human body through the braces on the left side and the right side, as the elastic belts 34 and the limiting belts 35 are designed at the upper ends of the braces 3, when the human body is static, the whole weight of the backpack is unchanged, the two sides are uniformly stressed, when the human body moves, the whole gravity center of the backpack body 1 is in a periodical up-down change state along with walking, as the elastic belts 34 at the tail ends of the braces are continuously stretched under the action of gravity, and as the gravity center is periodically changed, the force applied to the elastic belts is also periodical, so that the elastic belts 34 can be continuously changed to adapt to the continuous change of the gravity center of the backpack, and when the load is very large, the deformation of the elastic belts 34 is equal to the limiting belts, and the whole backpack is not moved downwards any more.

It should be noted that the illustrations provided in the above embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings rather than the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present utility model has been described in more detail by way of the above embodiments. The utility model is capable of other and equivalent embodiments and its several details are intended to be within the scope of the present disclosure.

Claims

1. The suspended load reducing schoolbag is characterized by comprising a body, a strap assembly arranged on the back of the body, a hard support plate and a back protection plate, wherein the back protection plate, the hard support plate and the back of the body are sequentially and fixedly connected, the left side and the right side of the back protection plate are provided with convex hard plates, and a space between the hard plates forms a longitudinal track;

the brace assembly comprises a brace, a hard supporting block, an elastic belt and a limiting belt, wherein the lower end of the brace is detachably connected with the back of the body, the part, provided with the hard supporting block, of the upper end of the brace stretches into the longitudinal track to be respectively connected with the upper end of the elastic belt and the upper end of the limiting belt, and the lower end of the elastic belt and the lower end of the limiting belt are respectively connected with the back of the body.

2. The suspension relief schoolbag of claim 1 wherein the length of the limit strap is normally greater than the length of the elastic strap and the maximum stretch travel of the elastic strap is greater than or equal to the difference between the lengths of the limit strap and the elastic strap.

3. A suspension relief schoolbag according to claim 1 wherein the width of the elastic or limit straps is less than the width of the rigid support blocks or longitudinal rails.

4. A suspension relief schoolbag according to claim 1 wherein the two rigid panels are not joined near the central side and the area of the spine panel between the two rigid panels defines a longitudinal ventilation passage.

5. The suspension relief schoolbag of claim 1 wherein the junction of the stiffening plate and the back guard is arcuate.

6. The levitation load-reducing schoolbag of claim 1, wherein the inner side of the back strap is provided with an elastic layer.

7. The levitation load-reducing schoolbag of claim 1, further comprising a back strap connecting strap having one end connected to an upper end of the back strap and having elasticity, the other end of the back strap connecting strap being connected to a back surface of the body.

8. The levitation load-reducing schoolbag of claim 1, wherein the strap assembly further comprises a fastener provided at a lower end of the strap, the lower end of the strap being detachably connected to the lower connecting strap of the back of the body by the fastener.

9. The suspension relief schoolbag of claim 1 wherein the spine protection plate is provided with a spine protection bump on the upper side of the back of the hard plate; and/or the lower side of the back of the hard plate, which is provided with waist support protruding blocks, is provided with the back support rib plate.

10. The suspension relief schoolbag of claim 1 wherein the upper end of the body is provided with a backpack handle.