Device for weight reduction and load relief for backpacks

Abstract

Device for weight reduction and load relief for backpacks, comprising a handle (6) and extendable shoulder straps (7), characterized in that mechanisms for weight reduction and load relief are arranged on both sides of the handle (6), that the mechanisms for weight reduction and load relief comprise a flexible rope (2), an elastic webbing band (3) and a fixed hook (4), that the lower end of the elastic webbing band (3) is attached to the backpack body, that the upper end of the elastic webbing band (3) is connected to the handle (6) and the extendable shoulder straps (7) so that a coupling between the handle (6) and the extendable shoulder straps (7) is realized, that one end of the flexible rope (2) is attached to the upper end of the elastic webbing band (3),and that the other end of the flexible rope (2) is led around the fixed hook (4) and then connected to a damping mechanism inside the handle (6).

Description

Technical field The present utility model belongs to the field of backpack accessories and relates in particular to a device for weight reduction and load relief for backpacks. Background of the technology Currently, the handle and elastic shoulder straps of conventional backpacks are independent, force-bearing components, and generally no device for weight reduction or load relief is provided. When carrying the backpack by the handle and when carrying it using the elastic shoulder straps, each strap independently bears the backpack's weight and offers no function for weight reduction or load relief. Content of the utility model The present utility model provides a device for weight reduction and load relief for backpacks to solve the technical problems existing in the technical field. The present invention provides a device for weight reduction and load relief for backpacks to solve the aforementioned technical problems. The device comprises a handle and extendable shoulder straps. Weight reduction and load relief mechanisms are arranged on both sides of the handle. These mechanisms include a flexible rope, an elastic webbing band, and a fixed hook. The lower end of the elastic webbing band is attached to the backpack body, while the upper end of the elastic webbing band is connected to the handle and the extendable shoulder straps, thus creating a connection between the handle and the shoulder straps.One end of the flexible rope is attached to the top of the elastic webbing, while the other end of the flexible rope is routed around the fixed hook and then connected to a damping mechanism inside the handle. Furthermore, the damping mechanism comprises a pull rod, wherein one end of the pull rod is connected to the flexible rope, a first magnetic ring disc is arranged at the other end of the pull rod, a second magnetic ring disc is arranged inside the handle at the end where the pull rod is connected to the flexible rope, and the first magnetic ring disc and the second magnetic ring disc are opposite each other with like poles and repel each other. Furthermore, the damping mechanism comprises a pull rod, wherein the pull rod is connected to the flexible rope, a damping spring is arranged on the pull rod, and a limiting ring is fixedly arranged inside the handle on the side where the pull rod is connected to the flexible rope. Furthermore, the flexible rope is a steel cable. This utility model relates to a device for weight reduction and load relief for backpacks, comprising a handle and extendable shoulder straps. Weight reduction and load relief mechanisms are arranged on both sides of the handle. These mechanisms comprise a flexible rope, an elastic webbing band, and a fixed hook. The lower end of the elastic webbing band is attached to the backpack body, while the upper end of the elastic webbing band is connected to the handle and the extendable shoulder straps, thus creating a connection between the handle and the shoulder straps. One end of the flexible rope is attached to the upper end of the elastic webbing band, while the other end of the flexible rope is wound around the fixed hook and then connected to a damping mechanism inside the handle.When carrying the handle or the backpack using the elastic shoulder straps, the elastic webbing stretches under force, moving the flexible rope. After the direction of force is reversed by the fixed hook, the flexible rope, via the damping mechanism, generates a damping force, thus reducing weight and relieving strain when carrying the handle or using the elastic shoulder straps. The design is simple and practical. Character description Fig. 1 shows a schematic structural view of the device for weight reduction and load relief for backpacks. Fig. 2 shows a schematic view of the device for weight reduction and load relief attached to a backpack. Fig. 3 shows a schematic structural view of embodiment 1 of the damping mechanism. Fig. 4 shows a schematic structural view of embodiment 2 of the damping mechanism. Method of execution As used in the description and claims, certain terms designate specific components. A person skilled in the art understands that hardware manufacturers may refer to the same component under different names. The present description and claims do not use differences in designation as a criterion for distinguishing components, but rather differences in the function of the components. As mentioned throughout the description and claims, "comprise" is an open formulation and should therefore be interpreted as "comprehensive but not limited to". The following description presents the preferred embodiments for implementing the present utility model, the description serving the purpose of explaining the general principles of the utility model and not being intended to limit the scope of protection of the utility model.The scope of protection of the present utility model is defined by the attached claims. The present utility model is explained in more detail below with reference to the accompanying drawings. The location terms used in the description, such as "above", "below", "left", "right", "inside" and "outside", serve only for better understanding and explanation and do not constitute a specific limitation of the present utility model. Example of implementation As shown in Figures 1 and 2, a device for weight reduction and load relief for backpacks comprises a handle 6 and extendable shoulder straps 7. Weight reduction and load relief mechanisms are arranged on both sides of the handle 6. These mechanisms comprise a flexible rope 2, an elastic webbing 3, and a fixed hook 4. The lower end of the elastic webbing 3 is attached to the backpack body, while the upper end of the elastic webbing 3 is connected to the handle 6 and the extendable shoulder straps 7, thus creating a coupling between the handle 6 and the extendable shoulder straps 7. One end of the flexible rope 2 is attached to the upper end of the elastic fabric band 3, while the other end of the flexible rope 2 is guided around the fixed hook 4 and then connected to a damping mechanism inside the handle 6.During manufacturing, the flexible rope 2 is embedded in the seam channel of the stretchable shoulder straps 7 and moves synchronously with the stretching or contraction of the shoulder straps. When carrying the handle 6 or when carrying the backpack using the stretchable shoulder straps 7, the elastic webbing 3 is stretched under force and moves the flexible rope 2. After the direction of the force is changed by the fixed hook 4, the flexible rope 2 generates a damping force via the damping mechanism, thereby reducing weight and relieving the load when carrying the handle 6 or using the stretchable shoulder straps 7. Preferably, the damping mechanism, as shown in Fig. 3, comprises a pull rod 5, wherein one end of the pull rod 5 is connected to the flexible rope 2, a first magnetic ring disc 1 is arranged at the other end of the pull rod 5, and a second magnetic ring disc 8 is arranged inside the handle 6 at the end where the pull rod 5 is connected to the flexible rope 2, and the first magnetic ring disc 1 and the second magnetic ring disc 8 are opposite each other with like poles and repel each other. During use, when carrying the handle 6 or the backpack, the flexible rope 2 is pulled over the elastic shoulder straps 7, moving the pull rod 5 along the axis of the handle 6, thereby moving the first magnetic ring disc 1.When the first magnetic ring disc 1 approaches the second magnetic ring disc 8, a counter-tensile force is generated on the handle 6 or the elastic shoulder straps 7 via the flexible rope 2 due to the repulsive interaction between the first magnetic ring disc 1 and the second magnetic ring disc 8, thus reducing weight and relieving the load. When the handle 6 or the elastic shoulder straps 7 are relieved of the load, the repulsive interaction between the first magnetic ring disc 1 and the second magnetic ring disc 8 causes the pull rod 5 and the first magnetic ring disc 1 to return to their original position.Preferably, the first magnetic ring disc 1 and the second magnetic ring disc 8 consist of strong magnetic rings, so that when the first magnetic ring disc 1 approaches the second magnetic ring disc 8, a relatively strong repulsive force is generated, which also enables a timely and smooth return of the pull rod 5 and the first magnetic ring disc 1 after the hand handle 6 or the stretchable shoulder straps 7 are relieved. Preferably, the damping mechanism, as shown in Fig. 4, comprises a pull rod 5, wherein the pull rod 5 is connected to the flexible rope 2, a damping spring 10 is arranged on the pull rod 5, and a limiting ring 9 is fixedly arranged inside the handle 6 on the side where the pull rod 5 is connected to the flexible rope 2. Accordingly, when used, either by carrying the handle 6 or by carrying the backpack over the elastic shoulder straps 7, the flexible rope 2 is pulled and moves the pull rod 5 along the axis of the handle 6, whereby the pull rod 5 compresses the damping spring 10 and generates a damping force that exerts a counterforce on the handle 6 or the elastic shoulder straps 7, thereby reducing weight and relieving the load. When the handle 6 or the extendable shoulder straps 7 are relieved of pressure, the pull rod 5 can be reset in time under the action of the damping spring 10. Preferably, the flexible rope 2 is made of steel. Using steel rope for the flexible rope 2 ensures both the stability of the force transmission and its adaptation to the flexible shape of the stretchable shoulder straps 7, so that the backpack remains lightweight while simultaneously achieving the functional connection between the handle 6 and the stretchable shoulder straps 7. The above description shows and describes the preferred embodiments of the present utility model, but, as already mentioned, should not be understood as limiting the forms disclosed herein, nor as excluding other embodiments. Rather, the utility model can be used in various other combinations, modifications, and environments and can be modified within the scope of the invention concept disclosed herein by the teachings mentioned above or by techniques or knowledge of the relevant technical field. Modifications and deviations made by those skilled in the art without departing from the spirit and scope of protection of the present utility model fall within the scope of protection of the attached claims of the present utility model.

Claims

Device for weight reduction and load relief for backpacks, comprising a handle (6) and extendable shoulder straps (7), characterized in that mechanisms for weight reduction and load relief are arranged on both sides of the handle (6), that the mechanisms for weight reduction and load relief comprise a flexible rope (2), an elastic webbing band (3) and a fixed hook (4), that the lower end of the elastic webbing band (3) is attached to the backpack body, that the upper end of the elastic webbing band (3) is connected to the handle (6) and the extendable shoulder straps (7) so that a coupling between the handle (6) and the extendable shoulder straps (7) is realized, that one end of the flexible rope (2) is attached to the upper end of the elastic webbing band (3),and that the other end of the flexible rope (2) is led around the fixed hook (4) and then connected to a damping mechanism inside the handle (6). Device for weight reduction and load relief for backpacks according to claim 1, characterized in that the damping mechanism comprises a pull rod (5), that one end of the pull rod (5) is connected to the flexible rope (2), that a first magnetic ring disc (1) is arranged at the other end of the pull rod (5), that a second magnetic ring disc (8) is arranged inside the handle (6) at the end where the pull rod (5) is connected to the flexible rope (2), and that the first magnetic ring disc (1) and the second magnetic ring disc (8) are opposite each other with like poles and repel each other. Device for weight reduction and load relief for backpacks according to claim 1, characterized in that the damping mechanism comprises a pull rod (5), that the pull rod (5) is connected to the flexible rope (2), that a damping spring (10) is arranged on the pull rod (5), and that a limiting ring (9) is fixedly arranged inside the handle (6) on the side where the pull rod (5) is connected to the flexible rope (2). Device for weight reduction and load relief for backpacks according to one of claims 1 to 3, characterized in that the flexible rope (2) is a steel rope.

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