Magnet suspension load-reducing backpack

Abstract

According to the magnet suspension load-reducing backpack, the mode that a spring and a magnetic module are connected in series is adopted, the module design is simplified, the structure is simple, and production is easy. The backpack comprises a backpack body, straps and a supporting plate, the supporting plate is sewn on the back of the backpack body, a containing cavity is formed between the supporting plate and the backpack body, and a magnet suspension assembly is placed in the containing cavity. The magnet suspension assembly is sequentially provided with a buffer pad, a sliding block, at least two magnet modules arranged in a mutual exclusion mode and a spring from bottom to top. The repulsive force of the magnet module is smaller than the elastic force of the spring. The magnet repulsive force of the magnet module is smaller than the elastic force of the spring, so that the magnet module is compressed firstly in the bearing state, and the buffering and pressure reducing capacity is provided. Along with the increase of the weight of the backpack, the magnet module is continuously compressed, the compression force begins to act on the spring, and at the moment, the magnet module and the spring act together, so that the backpack still has good buffering and pressure reducing capacity under a large load.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to a magnetic suspension load-reducing backpack. Background Art

[0002] To alleviate the pressure of backpack carrying, anti-gravity structural components such as springs or elastic bands have been introduced into backpack designs. Initial generations of anti-gravity pressure-reducing structural components mostly used a single spring or elastic band design. However, due to the fixed spring coefficient, this structure only achieved effective pressure reduction within a relatively small range of load weights. When the backpack is lightly loaded, the spring compression is low, the buffering distance is small, and the pressure reduction capacity is weak. When the backpack is heavily loaded, the spring compression is excessive, even reaching its compression limit, causing it to lose its buffering function and thus fail to achieve its pressure reduction effect.

[0003] Currently, to address the shortcomings of a single spring, a dual-spring module connected vertically in series is often used, as disclosed in patents CN217285051U and CN213664124U. This allows for the use of a single spring with a lower spring coefficient to provide cushioning and pressure relief under lighter loads, increasing the cushioning distance under low loads and achieving a better pressure relief effect. When carrying a heavier load, the second spring also participates, increasing the spring coefficient of the entire spring system to prevent the spring from being compressed to the bottom under heavy loads and losing its cushioning ability. However, these mechanisms use a large number of components, resulting in a complex structure and high cost. Furthermore, the overall structural design has a limited cushioning distance, leaving room for improvement.

[0004] In view of this, the utility model proposes a magnetic suspension load-reducing backpack, which uses a spring and a magnetic module in series to simplify the module design, use a simpler design to achieve a better decompression effect and reduce production costs. Summary of the Invention

[0005] To achieve the above object, the technical solution adopted by the present invention is: a magnetic suspension weight-reducing backpack, comprising a backpack body, shoulder straps, and a support plate. The support plate is sewn to the back of the backpack body to form a receiving cavity therebetween.

[0006] Furthermore, a magnet suspension assembly is placed in the accommodating cavity.

[0007] Furthermore, the magnetic suspension assembly includes a vertical slideway, in which a buffer pad, a slider, a magnet module, and a spring are arranged.

[0008] Furthermore, the buffer pad is arranged at the end of the slide.

[0009] Furthermore, the slider is arranged on the buffer pad.

[0010] Furthermore, the spring is arranged at the top of the slide.

[0011] Furthermore, the magnet module is arranged between the slider and the spring.

[0012] Furthermore, the magnet module includes at least two magnets arranged in a mutually exclusive manner.

[0013] Furthermore, the first magnet of the mutually exclusive magnet module is adhered to the slider, and the last magnet is attracted to the spring.

[0014] Furthermore, the repulsive force of the magnet module is smaller than the elastic force of the spring.

[0015] Furthermore, the slider is provided with a connecting portion, which is fixedly connected to one end of the shoulder strap.

[0016] Furthermore, the magnetic suspension assembly is provided with a connecting portion fixedly connected to the support plate.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are as follows: the magnetic suspension component utilizes the spring and the magnetic module in series, which simplifies the module design, has a simple structure, and is easy to produce.

[0018] The buffer pad at the end of the slideway of the magnetic suspension assembly prevents the slider from impacting the bottom when returning to its original position.

[0019] Because the repulsive force of the magnet module is smaller than the elastic force of the spring, the magnet module is compressed first when the backpack is carried, providing a buffering and pressure-reducing effect. As the weight increases, the magnet module continues to compress, and the compression force begins to act on the spring. At this point, the magnet module and the spring work together to ensure that the backpack maintains its good buffering and pressure-reducing ability even under heavy loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a schematic diagram of the combination of the shoulder strap, support plate, and magnetic suspension assembly of the utility model.

[0022] Figure 3 This is a schematic structural diagram of the magnet suspension assembly of the present utility model.

[0023] 1-backpack body; 2-shoulder strap; 3-support plate; 4-magnetic suspension assembly; 41-vertical slide; 42-buffer pad; 43-slider; 44-magnet module; 45-spring. DETAILED DESCRIPTION

[0024] like Figure 1As shown, a magnetic suspension weight-reducing backpack includes a backpack body 1, shoulder straps 2, and a support plate 3. The support plate 3 is sewn to the back of the backpack body, forming a receiving cavity between the two. The magnetic suspension component 4 is placed in the receiving cavity.

[0025] like Figure 2 、 3 As shown, the magnetic suspension assembly 4 is provided with a connecting portion, through which the magnetic suspension assembly 4 is fixed to the support plate 3. The magnetic suspension assembly 4 further comprises a vertical slide 41, in which a buffer pad 42, a slider 43, a magnet module 44, and a spring 45 are provided.

[0026] A cushion 42 is provided at the end of the slideway, and a slider 43 is provided above the cushion 42. The slider 43 has a connecting portion that is fixed to one end of the shoulder strap, and the other end of the shoulder strap is fixed to the backpack body. When the backpack body moves downward due to gravity, the shoulder strap is pulled, and the slider moves upward relative to the shoulder strap.

[0027] Spring 45 is positioned at the top of the slideway, and magnet module 44 is positioned between the slider and the spring. Magnet module 44 comprises at least two magnets arranged in a mutually repelling manner. In this embodiment, magnet module 44 comprises four magnets arranged in a mutually repelling manner. The first magnet is bonded to the slider, and the last magnet is attracted to the spring.

[0028] When the backpack is loaded, the magnet module is initially compressed, providing a cushioning and pressure-reducing mechanism. As the load increases, the magnet module continues to compress, and this compressive force begins to act on the spring. At this point, the magnet module and spring work together to maintain the backpack's excellent cushioning and pressure-reducing capabilities even under heavy loads. As the backpack continuously rises and falls, the slider moves up and down, and the cushioning pad under the slider prevents it from striking the wearer's coccyx.

Claims

1. A magnetic suspension weight-reducing backpack, comprising a backpack body, shoulder straps, and a support plate, wherein the support plate is sewn to the back of the backpack body to form a receiving cavity between the two, and a magnetic suspension component is placed in the receiving cavity, characterized in that The magnetic suspension assembly is provided with a buffer pad, a slider, a magnet module arranged in a mutually exclusive manner, and a spring in sequence from bottom to top; the repulsive force of the magnet module is smaller than the elastic force of the spring.

2. A magnetic suspension weight-reducing backpack as claimed in claim 1, characterized in that The magnetic suspension assembly is provided with a connecting portion, which is fixedly connected to the support plate.

3. The magnetic suspension weight-reducing backpack according to claim 1, characterized in that The mutually exclusive magnet module includes at least two mutually exclusive magnets.

4. A magnetic suspension weight-reducing backpack as claimed in claim 3, characterized in that The first magnet of the mutually exclusive magnet module is adhered to the slider, and the last magnet is attracted to the spring.

5. The magnetic suspension weight-reducing backpack according to claim 1, characterized in that The slider is provided with a connecting portion which is fixedly connected to one end of the shoulder strap.

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