Curved-surface load-reducing backpack and radian supporting back plate

Abstract

The backpack comprises a backpack body and the radian supporting backboard arranged on the back of the backpack body, the radian supporting backboard comprises a main body part, a fixed part arranged at one end of the main body part and a sliding part arranged at the other end of the main body part, and the main body part, the fixed part and the sliding part are integrally formed. The main body part is in an upwards arched arc shape, the fixed part is fixed on the bag body back panel through sewing, the sliding part is attached to the bag body back panel, and the sliding part is promoted to slide on the bag body back panel through elastic deformation of the main body part. According to the principle, the radian supporting back plate with the elastic deformation function is used for replacing a flexible supporting plate and a pull rope mechanism, the structure is simple, manufacturing is convenient, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of bags and suitcases, in particular to a curved load-reducing backpack and a curved supporting backboard. Background Art

[0002] Setting a support plate on the back of the bag can reduce the load, such as a backpack with an adjustable back support plate, which is disclosed in Chinese Patent Publication No. CN220212230U, comprising a bag and a support plate arranged on the back of the bag, wherein the support plate is provided with a drawstring mechanism for adjusting the upper and lower parts of the support plate to be close to each other so that the support plate arches away from the back; one of the upper and lower parts of the support plate is a fixed part, and the other is a movable part; the drawstring mechanism comprises a drawstring assembly and a length adjustment unit for adjusting the length of the drawstring assembly, one end of the drawstring assembly is fixed on the support plate or the back, and the other end of the drawstring assembly is connected to the movable part of the support plate; the drawstring assembly comprises a drawstring unit and a connecting belt unit, one end of the connecting belt unit is connected to the movable part, the other end of the connecting belt unit is connected to one end of the drawstring unit, and the other end of the drawstring unit is connected to the support plate or the back. This type of support plate needs to be tightened by the drawstring mechanism to form an arc, and has a complex structure, troublesome manufacturing, and high cost. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a curved load-reducing backpack and a curved supporting backboard, which have simple structure, are easy to manufacture and have low cost.

[0004] In order to solve the above technical problems, one of the technical solutions of the utility model is: a curved load-reducing backpack, including a bag body and a curved support backboard arranged on the back width of the bag body, the curved support backboard includes a main body, a fixed part arranged at one end of the main body, and a sliding part arranged at the other end of the main body, the main body, the fixed part and the sliding part are integrally formed, the main body is in an arc shape that arches upward, the fixed part is fixed on the back width of the bag body by sewing, the sliding part is in contact with the back width of the bag body, and the elastic deformation of the main body causes the sliding part to slide on the back width of the bag body. Principle of the utility model: using a curved support backboard with elastic deformation function to replace the flexible support plate and the pull rope mechanism, the structure is simple, the manufacturing is convenient, and the cost is low.

[0005] As an improvement, an elastic band is provided between the end of the main body away from the fixing portion and the back panel of the bag body.

[0006] As an improvement, the arc support back plate is an elastic plastic part, and the fixing part is provided with a transversely arranged sewing groove.

[0007] As an improvement, the main body is provided with hollow holes and reinforcing ribs.

[0008] As an improvement, the arc supporting back plate is an elastic metal piece, and the fixing part is provided with sewing holes.

[0009] As an improvement, the greater the deformation of the main body, the smaller the angle between the sliding portion and the back of the bag body.

[0010] As an improvement, a support pad is provided on the back of the bag body, and the curved support back plate is provided between the support pad and the back of the bag body.

[0011] In order to solve the above technical problems, the second technical solution of the utility model is: a curved support backboard, the curved support backboard includes a main body, a fixed part arranged at one end of the main body and a sliding part arranged at the other end of the main body, the main body, the fixed part and the sliding part are integrally formed, the main body is in an arc shape that arches upward, and the main body has an elastic deformation function. The principle of the utility model: using a curved support backboard with an elastic deformation function to replace a flexible support plate and a pull rope mechanism, the structure is simple, the manufacturing is convenient, and the cost is low.

[0012] As an improvement, the arc support back plate is an elastic plastic part, the fixing part is provided with a transversely arranged sewing groove, and the main body is provided with a hollow hole and reinforcing ribs.

[0013] As an improvement, an elastic band is provided between the end of the main body away from the fixing portion and the back panel of the bag body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The curved support back plate with elastic deformation function is used to replace the flexible support plate and the pull rope mechanism, which has a simple structure, is easy to manufacture and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the back of the package.

[0017] Figure 2 It is a schematic diagram of the coordination between the arc support back plate and the back panel.

[0018] Figure 3 Schematic diagram of the arc support backplane.

[0019] Figure 4 Schematic diagram of the connection between the curved support back plate and the elastic band. DETAILED DESCRIPTION

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3As shown, a curved load-reducing backpack includes a backpack body, a curved support backboard 2 and a support pad 3 arranged on a backpack back sheet 1. The curved support backboard 2 is arranged between the support pad 3 and the backpack back sheet 1. The curved support backboard 2 is arranged at the lower part of the backpack back sheet 1 corresponding to the waist position of the human body. The curved support backboard 2 provides support force, and the support pad 3 increases comfort. The curved support backboard 2 includes a main body 21, a fixed part 22 arranged at the upper end of the main body 21, and a sliding part 23 arranged at the lower end of the main body 21; the main body 21, the fixed part 22 and the sliding part 23 are integrally formed, and the width of the curved support backboard 2 is 10-13 cm, the length is 15-18 cm, and the curvature is 24-28°. The main body 21 is in an upwardly arched arc shape and has good elastic deformation function; the fixed part 22 is fixed on the bag body back sheet 1 by sewing, and the sliding part 23 is in contact with the bag body back sheet 1. The elastic deformation of the main body 21 causes the sliding part 23 to slide on the bag body back sheet 1. When the arc support back plate 2 is an elastic plastic part, the elastic plastic part of this embodiment is integrally injection-molded by PP, and its thickness can be designed according to the required support force; the fixed part 22 is provided with a transversely arranged sewing groove, which can guide the direction of the sewing line and reduce the difficulty of the sewing machine needle passing through the fixed part 22. The arc support back plate 2 is fixed on the bag body back sheet 1 by sewing technology, and the bottom surface of the fixed part 22 is in close contact with the bag body back sheet 1, ensuring the reliability of the connection between the fixed part 22 and the bag body back sheet 1; the main body 21 is provided with hollow holes for reducing weight and reinforcing ribs for strengthening structural strength. When the arc support back plate 2 is an elastic metal part, such as a stainless steel plate, a sewing hole is provided on the fixing part 22. The angle between the sliding part 23 and the back sheet 1 is an acute angle, which changes with the deformation of the arc support back plate 2. The greater the deformation of the main body 21, the smaller the angle between the sliding part 23 and the back sheet 1. In this way, the end of the arc support back plate 2 can be prevented from warping and the friction between the sliding part 23 and the back sheet 1 can be reduced. Figure 4 As shown, in order to increase the stability of the arc support plate 2, an elastic band 4 is provided between the end of the main body 21 away from the fixing portion 22 and the bag back panel 1, one end of the elastic band 4 is fixed to the bag back panel 1 by sewing, and the other end of the elastic band 4 passes through the through hole 24 on the main body and is folded back and sewn to form a fixed sleeve.

[0022] The principle of the utility model is to utilize the arc support back plate 2 with elastic deformation function to replace the flexible support plate and the pull rope mechanism, which has the advantages of simple structure, convenient manufacturing and low cost.

Claims

1. A curved load-reducing backpack, comprising a bag body and a curved supporting back plate provided on the back width of the bag body, characterized in that: The arc supporting back plate includes a main body, a fixed part arranged at one end of the main body and a sliding part arranged at the other end of the main body. The main body, the fixed part and the sliding part are integrally formed. The main body is in an upwardly arched arc shape. The fixed part is fixed to the back width of the bag body by sewing. The sliding part is in contact with the back width of the bag body, and the sliding part is caused to slide on the back width of the bag body through the elastic deformation of the main body.

2. A curved surface load-reducing backpack according to claim 1, characterized in that: An elastic band is arranged between one end of the main body away from the fixing part and the back width of the bag body.

3. The curved surface load-reducing backpack according to claim 1, characterized in that: The arc support back plate is an elastic plastic part, and the fixing part is provided with a transversely arranged sewing groove.

4. The curved surface load-reducing backpack according to claim 3, characterized in that: The main body is provided with hollow holes and reinforcing ribs.

5. The curved surface load-reducing backpack according to claim 1, characterized in that: The greater the deformation of the main body, the smaller the angle between the sliding portion and the back of the bag.

6. The curved surface load-reducing backpack according to claim 1, characterized in that: A support pad is arranged on the back sheet of the bag body, and the arc support back plate is arranged between the support pad and the back sheet of the bag body.

7. A curved support back plate, characterized in that: The arc support back plate includes a main body, a fixed part arranged at one end of the main body and a sliding part arranged at the other end of the main body. The main body, the fixed part and the sliding part are integrally formed. The main body is in an upwardly arched arc shape and has an elastic deformation function.

8. The arc support back plate according to claim 7, characterized in that: The arc support back plate is an elastic plastic part, the fixing part is provided with a transversely arranged sewing groove, and the main body is provided with a hollow hole and a reinforcing rib.

9. The arc support back plate according to claim 8, characterized in that: An elastic band is arranged between one end of the main body away from the fixing part and the back width of the bag body.

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