Inflatable backpack device
By using an airbag support structure and mesh cover to create a breathable space in the backpack, and by evenly distributing the shoulder strap pressure through the shoulder guard, the problems of poor backpack breathability and shoulder discomfort are solved, achieving a backpack design with high breathability and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-10
AI Technical Summary
Existing backpacks have poor breathability, resulting in a stuffy feeling, and the concentrated pressure on the shoulder straps causes shoulder discomfort.
An airbag is used as the support structure, and a mesh cover is placed over the airbag to create a breathable space. The shoulder strap pressure is evenly distributed through the shoulder strap.
It improves the breathability and comfort of the backpack, avoids stuffiness, reduces pressure on the shoulders, and is lightweight and easy to carry.
Smart Images
Figure CN223979550U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of backpack technology, and in particular relates to an inflatable carrying device. Background Technology
[0002] Currently, to improve the breathability of backpacks, a common practice is to install two vertical strip-shaped sponge protrusions on the back of the backpack. However, to ensure comfort, the sponge is usually made quite thick, which results in poor breathability and a stuffy feeling. Moreover, the sponge is easily flattened under pressure, causing the entire back to cover the back, further reducing breathability. In addition, the shoulder straps of existing backpacks apply too much concentrated pressure to the shoulders, which can easily cause a greater feeling of pressure on the shoulders. Utility Model Content
[0003] The main objective of this invention is to propose an inflatable carrying device that can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An inflatable carrying device includes an airbag with a symmetrical left-right structure. The airbag includes a lumbar support section with a U-shaped structure and protruding sections on both sides. The top two ends of the lumbar support section are connected to shoulder straps via transition sections. The shoulder straps include a first arc-shaped section and a second arc-shaped section arranged symmetrically on both sides. The front ends of the first arc-shaped section and the second arc-shaped section are connected to each other. The rear end of the second arc-shaped section is connected to the lumbar support section via the transition sections. A mesh cover is fitted over the airbag according to its overall outline.
[0006] Preferably, the side of the protruding section has a quick inflation valve, which protrudes outside the mesh cover.
[0007] Preferably, the second arc-shaped segment serves as the inner side of the shoulder support, the transition segment bends inward from the top of the lumbar support and connects to the rear end of the second arc-shaped segment, and the front side of the transition segment fits against the back of the human body.
[0008] Preferably, the airbag is formed by hot melt injection molding of a double-layer TPU composite film.
[0009] Preferably, the mesh cover includes a first mesh fabric and a second mesh fabric, the first mesh fabric and the second mesh fabric are "Y" shaped structures, and their edges are sewn together with yarn, and the waist support and shoulder support are supported at the yarn sewn joint.
[0010] Preferably, a soft, resilient silicone strip is fixed inside the yarn seam of the first and second mesh fabrics, and the waist support and shoulder support are fixedly connected to the yarn seam of the first and second mesh fabrics through the soft, resilient silicone strip.
[0011] This utility model provides an inflatable carrying device, which has the following beneficial effects:
[0012] 1. With the support of the airbag, the backpack body and shoulder straps will not fit snugly against the body. A mesh ventilation space is formed between the two sides of the waist support, between the two transition sections, and between the first and second arc sections of the shoulder strap. Because the two sides of the waist support have raised sections, a height difference is formed between the raised sections and the adjacent non-raised sections, thus creating ventilation gaps in the non-raised sections. This allows the internal mesh ventilation space to circulate with the outside air, resulting in good ventilation and heat dissipation and effectively preventing stuffiness.
[0013] 2. The lower sides of the first and second curved sections of the shoulder strap fit snugly against the human shoulder. The pressure applied by the shoulder strap is transmitted to the human shoulder through the shoulder strap, resulting in more even force distribution and greater comfort.
[0014] 3. The inflatable carrying system uses air bladders for support, making it lightweight and not adding too much weight to the body. When not in use, it can be deflated and folded for easy storage and carrying. Attached Figure Description
[0015] Figure 1 This is an exploded view of the inflatable carrying device of this utility model;
[0016] Figure 2 This is a front view of the airbag of this utility model;
[0017] Figure 3 This is a side view of the airbag of this utility model;
[0018] Figure 4 This is a side view of the inflatable carrying device of this utility model;
[0019] Figure 5 This is a schematic diagram illustrating the use of the inflatable carrying device of this utility model;
[0020] Figure 6 This is a cross-sectional view of the shoulder portion of the present invention.
[0021] In the diagram: 1. Airbag; 11. Waist support; 110. Protruding section; 111. Quick inflation valve; 12. Transition section; 13. Shoulder support; 131. First arc-shaped section; 132. Second arc-shaped section; 2. Mesh cover; 21. First mesh fabric; 22. Second mesh fabric; 23. Yarn seam; 3. Soft, resilient silicone strip. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example
[0027] Reference Figure 1-4An inflatable carrying device includes an airbag 1, which has a symmetrical structure. The airbag 1 includes a lumbar support 11, which has a U-shaped structure with protruding sections 110 on both sides. The front side of the lumbar support 11 fits against the waist of the human body. The top two ends of the lumbar support 11 are connected to shoulder straps 13 via transition sections 12. The shoulder straps 13 include a first arc-shaped section 131 and a second arc-shaped section 132 arranged symmetrically. The lower sides of the first arc-shaped section 131 and the second arc-shaped section 132 fit against the shoulders of the human body. The front ends of the first arc-shaped section 131 and the second arc-shaped section 132 are connected to each other. The rear end of the second arc-shaped section 132 is connected to the lumbar support 11 via the transition section 12. A mesh cover 2 is fitted over the airbag 1 according to its overall outline.
[0028] Preferably, the inflatable carrying system can be equipped with a magnetic buckle to connect with the backpack, supporting quick assembly and disassembly in 3 seconds. An antibacterial coating is applied to the side of the mesh cover 2 that comes into contact with the skin to reduce the growth of bacteria from sweat.
[0029] Reference Figure 1 , Figure 5 When a person is carrying the backpack, the inflatable carrying system is located between the person and the backpack. The front side of the waist support 11 fits against the person's waist, and the lower side of the first arc-shaped section 131 and the second arc-shaped section 132 of the shoulder strap 13 fits against the person's shoulder. With the support of the airbag 1 (waist support 11, transition section 12, shoulder strap 13), the backpack body and shoulder straps will not fit against the person. Furthermore, a mesh ventilation space is formed in the area between the two sides of the waist support 11, between the two transition sections 12, and between the first arc-shaped section 131 and the second arc-shaped section 132 of the shoulder strap 13. Since the waist support 11 has raised sections 110 on both sides, a height difference is formed between the raised sections 110 and their adjacent non-raised sections, thus creating ventilation gaps in the non-raised sections. This allows the internal mesh ventilation space to circulate with the external air, resulting in good ventilation and heat dissipation, and effectively preventing stuffiness. Of course, to further improve the breathability, more protrusions can be set in other positions of the airbag 1 to form more breathable gaps.
[0030] The pressure exerted on the shoulders by the shoulder straps of existing backpacks is mainly concentrated on the front of the shoulders. This excessive pressure can easily cause a feeling of pressure on the shoulders. However, in the inflatable carrying system of this invention, the lower sides of the first arc segment 131 and the second arc segment 132 of the shoulder clamp 13 fit against the shoulders. The pressure exerted by the shoulder straps is transmitted to the shoulders through the shoulder clamp 13, resulting in more even force distribution and greater comfort.
[0031] In addition, the inflatable carrying system of this utility model uses an airbag 1 as support, which is lightweight and will not add too much weight to the human body. When not in use, it can be deflated and folded for storage, making it convenient to carry.
[0032] In one specific implementation, the side of the protruding section 110 has a quick inflation valve 111, which protrudes outside the mesh sleeve 2 for easy inflation or deflation.
[0033] In one specific implementation, the second arc-shaped segment 132 serves as the inner side of the shoulder support 13, and the transition segment 12 bends inward from the top of the waist support 11 and connects to the rear end of the second arc-shaped segment 132, with the front side of the transition segment 12 conforming to the back of the human body.
[0034] In one specific implementation, the airbag 1 is made by hot melt injection molding of a double-layer TPU composite film. TPU itself has high strength and good toughness. The double-layer structure further enhances the tear resistance and impact resistance of the airbag 1, making it less prone to breakage and improving the reliability and safety of the airbag 1. At the same time, TPU also has excellent elasticity, and the airbag 1 can maintain good elastic recovery performance during inflation and deflation, without permanent deformation, thus ensuring the service life of the airbag 1.
[0035] In a specific implementation plan, refer to Figure 1 , Figure 6 The mesh cover 2 includes a first mesh fabric 21 and a second mesh fabric 22. The first mesh fabric 21 and the second mesh fabric 22 have a "Y" shaped structure, and their edges are sewn together with yarn. The waist support 11 and the shoulder support 13 are supported at the yarn sewn joint 23.
[0036] In one specific implementation, a soft, resilient silicone strip 3 is fixed inside the yarn seam 23 of the first mesh fabric 21 and the second mesh fabric 22. The soft, resilient silicone strip 3 has good resilience, which helps to maintain the shape of the mesh cover 2. The waist support 11 and the shoulder support 13 are fixedly connected to the yarn seam 23 of the first mesh fabric 21 and the second mesh fabric 22 through the soft, resilient silicone strip 3, so as to prevent the waist support 11 and the shoulder support 13 from shifting inside the mesh cover 2 during inflation and deflation.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An inflatable backpack, characterized by: The air bag is a left-right symmetrical structure, and comprises a waist support part in a U-shaped structure, two sides of the waist support part having protruding sections, and a shoulder clamping part connected to both ends of the top of the waist support part through transition sections, the shoulder clamping part comprising left-right symmetrical first and second arc-shaped sections, the front ends of the first and second arc-shaped sections being connected to each other, the rear end of the second arc-shaped section being connected to the waist support part through the transition section, and a mesh sleeve being provided outside the air bag according to the overall profile of the air bag.
2. An inflatable backpack according to claim 1, characterized in that: The side surface of the protruding section is provided with a quick inflation valve, and the quick inflation valve is exposed outside the mesh sleeve.
3. An inflatable backpack according to claim 1, wherein: The second arc-shaped section serves as the inner side of the shoulder clamping part, the transition section is bent inward from the top of the waist support part and connected to the rear end of the second arc-shaped section, and the front side surface of the transition section is in contact with the back of the human body.
4. An inflatable backpack according to claim 1, characterized in that: The air bag is formed by hot melt injection molding of a double-layer TPU composite film.
5. An inflatable backpack according to claim 1, characterized in that: The mesh sleeve comprises first and second mesh cloths in a "Y" shaped structure, the edges of the first and second mesh cloths being sewn by yarn, and the waist support part and the shoulder clamping part being supported at the yarn sewing position.
6. An inflatable backpack according to claim 5, wherein: The yarn sewing position inside the first and second mesh cloths is fixed with a soft resilient silica gel strip, and the waist support part and the shoulder clamping part are fixedly connected to the yarn sewing position of the first and second mesh cloths through the soft resilient silica gel strip.