Gravity center shift type pressure reduction backpack

Abstract

The utility model relates to the technical field of knapsacks, in particular to a gravity center shift type pressure reduction knapsack which comprises a knapsack body, straps are arranged on the rear side of the knapsack body, a containing cavity is formed in the knapsack body, a bottom plate is arranged at the bottom of the containing cavity, and the rear end of the bottom plate inclines downwards towards the rear side of the knapsack body. The included angle between the bottom plate and the horizontal plane is 10-30 degrees, compared with the prior art, the bag is not affected by the weight of articles in the bag body, due to the obliquely-arranged bottom plate, the articles in the bag body can incline towards the inclination direction of the bottom plate, the overall gravity center of the bag body is made to be close to the waist of a user, and therefore the pressure of the bag body on the shoulders and the waist of the user is reduced; and better use experience can be provided for a user.

Description

Technical Field

[0001] This utility model relates to the field of backpack technology, and in particular to a center-of-gravity offset decompression backpack. Background Technology

[0002] When using a backpack, items such as books inside tend to tilt outwards during movement, shifting the backpack's center of gravity outwards and significantly increasing pressure on the shoulders and waist. This causes excessive stress and discomfort for the user, hindering movement and failing to achieve the desired practical effect. Therefore, backpacks designed to reduce pressure have emerged on the market.

[0003] For example, patent CN113966913A discloses a pressure-reducing backpack, which belongs to the field of bags. Specifically, it is a backpack that can reduce pressure on the shoulders and waist. It adopts a bottom plate with a bottom plate connected to the lower end of an elastic band at one end and the upper end of the elastic band connected to the upper end of the back panel of the backpack. The elastic band pulls the items inside the backpack towards the back panel, making the center of gravity of the backpack closer to the back, thereby achieving a pressure-reducing effect on the shoulders and waist and making the carrying more comfortable.

[0004] The problem with the above technology is that the backpack uses an elastic band to pull the bottom plate, causing the items to tilt towards the back, thus achieving the effect of the backpack's center of gravity being closer to the back. However, when the weight of the items exceeds the elasticity of the elastic band, the elastic band cannot pull the bottom plate up, causing the backpack's pressure relief function to fail.

[0005] To address these technical problems, a center-of-gravity offset decompression backpack is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a center-of-gravity offset pressure-reducing backpack, which can tilt the items inside the backpack towards the rear end of the backpack, thereby bringing the center of gravity of the backpack closer to the user's back, thus reducing the pressure on the user's shoulders and waist.

[0007] The technical solution adopted by this utility model to solve the problem is: a center-of-gravity offset decompression backpack, including a bag body, a shoulder strap provided on the rear side of the bag body, a receiving cavity provided inside the bag body, a bottom plate provided at the bottom of the receiving cavity, the rear end of the bottom plate tilting downward toward the rear side of the bag body, and the angle between the bottom plate and the horizontal plane being 10-30°.

[0008] As a further improvement to the above technical solution, the base plate is attached to the bottom of the receiving cavity, and the bottom of the receiving cavity and the base plate have the same inclination angle.

[0009] As a further improvement to the above technical solution, an adjustable base is movably provided at the bottom of the base plate, and the adjustable base abuts against the bottom of the receiving cavity.

[0010] As a further improvement to the above technical solution, a back plate extending upward is provided on the rear side of the base plate.

[0011] As a further improvement to the above technical solution, the rear side of the base plate is hinged with an upwardly extending back plate, which is attached to the rear side wall of the receiving cavity.

[0012] As a further improvement to the above technical solution, the back plate has a forward-curving recess in the middle.

[0013] As a further improvement to the above technical solution, the bottom plate is provided with upwardly extending side plates on both the left and right sides.

[0014] As a further improvement to the above technical solution, the front side of the base plate is provided with an upwardly extending front plate.

[0015] As a further improvement to the above technical solution, the base plate, back plate, side plate and front plate are made of plastic.

[0016] As a further improvement to the above technical solution, a back pad is provided on the back side of the bag body, and the back pad is filled with sponge.

[0017] The beneficial effects of this utility model are: compared with the prior art, it is not affected by the weight of the items inside the bag. Due to the inclined bottom plate, the items inside the bag will tilt in the direction of the tilt of the bottom plate, so that the overall center of gravity of the bag is closer to the user's waist, thereby reducing the pressure of the bag on the user's shoulders and waist and providing the user with a better user experience. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a structural diagram of the backpack of this utility model from the front view.

[0020] Figure 2 This is a structural diagram of the backpack of this utility model from the rear view.

[0021] Figure 3 This is a cross-sectional view of the backpack in Embodiment 1 of this utility model;

[0022] Figure 4 This is a structural diagram showing the connection between the bottom plate, back plate, side plate, and front plate in Embodiment 1 of this utility model;

[0023] Figure 5 This is a cross-sectional view of the backpack in Embodiment 2 of this utility model;

[0024] Figure 6 for Figure 5 A magnified view of part A;

[0025] Figure 7 This is a structural diagram showing the connection between the bottom plate, back plate, side plate, and front plate in Embodiment 2 of this utility model;

[0026] Figure 8 This is a force diagram showing the application of the backpack of this utility model.

[0027] In the figure: (1)-body, (11)-strap, (12)-cabinet, (2)-bottom plate, (21)-adjustable base, (3)-back plate, (31)-recess, (4)-side plate, (5)-front plate, (6)-back pad. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the description of the textual part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 8 A center-of-gravity offset decompression backpack includes a bag body 1, a shoulder strap 11 on the rear side of the bag body 1, a receiving cavity 12 inside the bag body 1, a bottom plate 2 at the bottom of the receiving cavity 12, the rear end of the bottom plate 2 is inclined downward towards the rear side of the bag body 1, and the angle between the bottom plate 2 and the horizontal plane is 10-30°.

[0033] When in use, due to the tilted base plate 2, the items inside the bag body 1 will tilt in the direction of the tilted base plate 2, and the overall center of gravity of the bag body 1 will move closer to the user's waist, thereby reducing the pressure of the bag body 1 on the user's shoulders and waist, and providing the user with a better user experience.

[0034] Reference Figure 3 and 4 In the first embodiment, in order to increase the load-bearing capacity of the base plate 2, the base plate 2 is attached to the bottom of the receiving cavity 12, and the bottom of the receiving cavity 12 and the base plate 2 have the same tilt angle.

[0035] In a preferred embodiment, a back plate 3 extending upward is provided on the rear side of the base plate 2. The back plate 3 is integrally formed or bonded to the base plate 2. The back plate 3 is attached to the rear side wall of the receiving cavity 12. The back plate 3 can disperse the pressure of the item on the base plate 2, thereby reducing the pressure on the user's shoulders and waist.

[0036] In a preferred embodiment, in order to increase the connection strength between the base plate 2 and the back plate 3, side plates 4 extending upward are provided on the left and right sides of the base plate 2. The side plates 4 are integrally formed or bonded to the base plate 2 and the back plate 3, and the side plates 4 are attached to the side wall of the receiving cavity 12.

[0037] In a preferred embodiment, in order to further increase the connection strength of the base plate 2, the back plate 3 and the side plate 4, a front plate 5 extending upward is provided on the front side of the base plate 2. The front plate 5 is integrally formed or bonded with the base plate 2 and the side plate 4, and the front plate 5 is attached to the front side wall of the receiving cavity 12.

[0038] Reference Figures 5 to 7 In the second embodiment, an adjustable base 21 is movably provided at the bottom of the base plate 2. Magnetic components can be provided on both the base plate 2 and the adjustable base 21 to connect the adjustable base 21 to the base plate. Alternatively, Velcro can be provided on both the base plate 2 and the adjustable base 21 to connect the adjustable base 21 to the base plate. The adjustable base 21 abuts against the bottom of the receiving cavity 12. By adjusting the front and rear position of the adjustable base 21 on the base plate 2, the tilt angle of the base plate 2 can be adjusted.

[0039] In a preferred embodiment, a back plate 3 extending upward is hinged to the rear side of the base plate 2, and the base plate 2 and the back plate 3 are connected by a hinge, with the back plate 3 fitting against the rear sidewall of the receiving cavity 12.

[0040] In a preferred embodiment, in order to increase the connection strength between the base plate 2 and the back plate 3, side plates 4 extending upward are provided on the left and right sides of the base plate 2. The side plates 4 are integrally formed or bonded to the base plate 2 and the back plate 3.

[0041] In a preferred embodiment, in order to further increase the connection strength of the base plate 2, the back plate 3 and the side plate 4, a front plate 5 extending upward is provided on the front side of the base plate 2, and the front plate 5 is integrally formed or bonded to the base plate 2 and the side plate 4.

[0042] The base plate 2, back plate 3, side plate 4, and front plate 5 mentioned above are made of plastic;

[0043] For user comfort, a back pad 6 is provided on the back of the bag body 1, and the back pad 6 is filled with sponge.

[0044] Pockets can also be provided on the left and right sides of the bag body 1 for storing items;

[0045] Further improvements to the above embodiments, as shown in reference Figure 8 The back plate 3 has a forward-curving recess 31 in the middle, and the recess 31 is arc-shaped.

[0046] When an item such as a textbook is placed in the receiving cavity 12, the upper part of the textbook will tilt in the direction of arrow a along with the inclined base plate, so that the textbook abuts against the recessed part 31, and the pressure P of the textbook is directed towards the user's back. Through the weight G of the textbook itself and the pressure P on the recessed part 31, the center of gravity (i.e., the resultant force F) of the bag body 1 will always remain close to the user's waist.

[0047] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A center-of-gravity offset decompression backpack, characterized in that: Includes a bag body (1), a shoulder strap (11) is provided on the rear side of the bag body (1), a receiving cavity (12) is provided inside the bag body (1), a bottom plate (2) is provided at the bottom of the receiving cavity (12), the rear end of the bottom plate (2) is inclined downward towards the rear side of the bag body (1), and the angle between the bottom plate (2) and the horizontal plane is 10-30°.

2. The center-of-gravity offset decompression backpack as described in claim 1, characterized in that: The base plate (2) is attached to the bottom of the receiving cavity (12), and the bottom of the receiving cavity (12) has the same inclination angle as the base plate (2).

3. A center-of-gravity offset decompression backpack as described in claim 1, characterized in that: An adjustable base (21) is movably provided at the bottom of the base plate (2), and the adjustable base (21) abuts against the bottom of the receiving cavity (12).

4. A center-of-gravity offset decompression backpack as described in claim 2, characterized in that: The bottom plate (2) is provided with an upwardly extending back plate (3) on its rear side, and the back plate (3) is attached to the rear side wall of the receiving cavity (12).

5. A center-of-gravity offset decompression backpack as described in claim 3, characterized in that: The bottom plate (2) is hinged to an upwardly extending back plate (3) on its rear side, and the back plate (3) is attached to the rear side wall of the receiving cavity (12).

6. A center-of-gravity offset decompression backpack as described in claim 4 or 5, characterized in that: The back plate (3) has a forward-curving recess (31) in the middle.

7. A center-of-gravity offset decompression backpack as described in claim 6, characterized in that: The bottom plate (2) has upwardly extending side plates (4) on its left and right sides.

8. A center-of-gravity offset decompression backpack as described in claim 7, characterized in that: The front side of the base plate (2) is provided with an upwardly extending front plate (5).

9. A center-of-gravity offset decompression backpack as described in claim 8, characterized in that: The base plate (2), back plate (3), side plate (4) and front plate (5) are made of plastic.

10. A center-of-gravity offset decompression backpack as described in claim 1, characterized in that: The back of the bag body (1) is provided with a back pad (6), and the back pad (6) is filled with sponge.

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