Lifting load-reducing backpack

Abstract

A lifting load-reducing knapsack comprises a knapsack body and straps, the upper ends of the straps are connected with the upper portion of the knapsack body, the lower ends of the straps are connected with the lower portion of the knapsack body, a front piece is arranged on the front face of the knapsack body, one end of the front piece is a fixed end and is fixedly connected with the knapsack body, and the other end of the front piece is a free end and is provided with a connecting female buckle. A traction belt is arranged on the strap, one end of the traction belt is a fixed end and is fixedly connected with the strap, the other end of the traction belt is a free end and is provided with a connecting male buckle, and the traction belt can cross the upper part of the bag body to enable the connecting male buckle to be matched with the connecting female buckle. The front piece is additionally arranged on the front face of the bag body, the traction belt is additionally arranged on the straps, the traction belt and the front piece are connected through the connecting buckle, the traction belt lifts the bag body upwards and pulls the bag body forwards through the front piece, the back piece of the bag body is more attached to the back of the human body, and the purposes of protecting the spine and reducing burden are achieved.

Description

Technical Field

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

[0002] A backpack is prone to tilting backward when loaded with a large amount of weight, thereby increasing the burden on the user. In order to solve the problem of the backpack tilting backward, Chinese patent publication No. CN210471352U discloses a backpack for primary school students that can reduce the burden on shoulders, including a backpack, ladder buckles are sewn on both sides of the top of the front side of the backpack, shoulder straps are sewn on the top of the ladder buckles, a first arc-shaped cloth body is sewn on both sides of the top of the back side of the backpack, a block is sewn on the top of the first arc-shaped cloth body, and Japanese-shaped buckles are sewn on both sides of the bottom of the back side of the backpack, one end of the shoulder strap away from the ladder buckle passes through the inner cavity of the block and the Japanese-shaped buckle from top to bottom and extends to the bottom of the Japanese-shaped buckle, and a second arc-shaped cloth body is sewn on both sides of the bottom of the back side of the backpack through cloth tapes. The shoulder straps of this backpack are adjustable through the Japanese-shaped buckle at the lower end, so that the bag body can fit more closely to the back of the human body and achieve the purpose of reducing the load. However, since the shoulder straps are adjusted and fixed by the Japanese-shaped buckle, the fixation is not reliable enough and the shoulder straps may become loose, eventually causing the shoulder straps to become longer and the bag body still tilting backward. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a lifting and load-reducing backpack, which can not only achieve the purpose of load reduction, but also enable the backpack to reliably fit the back of the human body.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a lifting and load-reducing backpack, including a bag body and a shoulder strap, the upper end of the shoulder strap is connected to the upper part of the bag body, the lower end of the shoulder strap is connected to the lower part of the bag body, the front of the bag body is provided with a front piece, one end of the front piece is a fixed end and is fixedly connected to the bag body, the other end of the front piece is a free end and is provided with a connecting female buckle, and the shoulder strap is provided with a traction belt, one end of the traction belt is a fixed end and is fixedly connected to the shoulder strap, the other end of the traction belt is a free end and is provided with a connecting male buckle, and the traction belt can cross the upper part of the bag body so that the connecting male buckle and the connecting female buckle cooperate. The principle of the utility model: add a front piece to the front of the bag body, add a traction belt to the shoulder strap, the traction belt and the front piece are connected by a connecting buckle, the traction belt lifts the bag body upward and pulls it forward through the front piece, so that the back of the bag body fits better with the back of the human body, achieving the purpose of protecting the spine and reducing the load. The original shoulder straps of the backpack remain unchanged, and a traction belt is added to the shoulder straps, which makes production more convenient and reduces costs; the front panel is tightened by the tension of the traction belt to make the bag body fit, the traction belt is not easy to get loose, and the reliability is higher.

[0005] As an improvement, a rope retracting device is provided on the shoulder strap, and the retractable rope of the rope retracting device is connected to the fixed end of the traction belt.

[0006] As an improvement, the rope retracting and releasing device includes a retractable rope, a base, a take-up wheel pivotally connected to the base, a transmission mechanism and a knob. The knob drives the take-up wheel through the transmission mechanism, and one end of the retractable rope is wound around the take-up wheel.

[0007] As an improvement, a limiting channel is provided on the top of the package body, and the traction belt passes through the limiting channel.

[0008] As an improvement, the connecting female buckle is a female plug buckle, and the connecting male buckle is a male plug buckle.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] A front panel is added to the front of the bag body, and a traction belt is added to the shoulder strap. The traction belt is connected to the front panel through a connecting buckle. The traction belt lifts the bag body upward and pulls it forward through the front panel, so that the back panel of the bag body fits the back of the human body more closely, thereby achieving the purpose of protecting the spine and reducing the load. The original shoulder straps of the backpack remain unchanged, and the traction belt is added to the shoulder straps, which is more convenient to produce and has lower cost. The front panel is tightened by the tension of the traction belt to make the bag body fit, the traction belt is not easy to get loose, and the reliability is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the front of the backpack.

[0012] Figure 2 This is a diagram of the back of the backpack.

[0013] Figure 3 This is a side view of the backpack. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figures 1 to 3As shown, a lifting and reducing load backpack comprises a bag body 1 and two shoulder straps 2 symmetrically arranged on the left and right sides, wherein the shoulder straps 2 are located on the back surface of the bag body 1, the upper ends of the shoulder straps 2 are connected to the upper part of the bag body 1, and the lower ends of the shoulder straps 2 are connected to the lower part of the bag body 1. A front sheet 3 is provided on the front side of the bag body 1, one end of the front sheet 3 is a fixed end and is fixedly connected to the bag body 1, the fixed end of the front sheet 3 is fixed at the middle position of the front side of the bag body 1, the front sheet 3 is fixedly connected to the bag body 1 by sewing, the other end of the front sheet 3 is a free end and is provided with two connecting female buckles 4, and the connecting female buckles 4 can be connected to the front sheet 3 by webbing; the front sheet 3 is turned upward when used as a traction component, and is turned downward when used as a decorative component. The shoulder strap 2 is provided with a traction belt 5, which is a webbing. One end of the traction belt 5 is a fixed end and is fixedly connected to the upper end of the shoulder strap 2. The other end of the traction belt 5 is a free end and is provided with a connecting male buckle 6. The traction belt 5 can cross the upper part of the bag body 1 so that the connecting male buckle 6 cooperates with the connecting female buckle 4. In this embodiment, in order to make the traction belt 5 have elastic adjustment, a rope belt retracting device 7 is provided at the upper end of the shoulder strap 2. The retractable rope of the rope belt retracting device 7 is connected to the fixed end of the traction belt 5, that is, the fixed end of the traction belt 5 is connected to the shoulder strap 2 through the rope belt retracting device; the rope belt retracting device 7 includes a retractable rope, a base, a take-up wheel pivotally connected to the base, a transmission mechanism and a knob. The knob drives the take-up wheel through the transmission mechanism. One end of the retractable rope is wound around the take-up wheel. The rope belt retracting device 7 can also adopt existing technology, such as a shoelace lacing device or a knob buckle of BOA Company, and the traction belt 5 is tightened by turning the knob. The female connection buckle 4 is a female plug buckle, and the male connection buckle 6 is a male plug buckle, which is convenient for connection and matching. A limiting channel is provided on the top of the bag body 1, and the limiting channel is formed by sewing the fabric. The traction belt 5 passes through the limiting channel, which reduces the influence of the traction belt 5 on the overall appearance of the bag body 1, and the limiting traction belt 5 is cheap, and the traction position is more accurate.

[0016] The principle of the utility model is as follows: a front piece 3 is added to the front of the bag body 1, and a traction belt 5 is added to the shoulder strap 2. The traction belt 5 is connected to the front piece 3 through a connecting buckle. The traction belt 5 lifts the bag body 1 upward and pulls it forward through the front piece 3, so that the back of the bag body 1 fits the back of the human body better, achieving the purpose of protecting the spine and reducing the load. The original shoulder strap 2 of the backpack remains unchanged, and the traction belt 5 is added to the shoulder strap 2, which is more convenient to produce and has lower costs; the front piece 3 is tightened by the pulling force of the traction belt 5 to make the bag body fit, and the traction belt 5 is not easy to get loose, and the reliability is higher; when the traction belt crosses the top of the bag body, the traction belt can play a certain anti-theft function by crossing the zipper on the bag body.

Claims

1. A lifting and load-reducing backpack, comprising a bag body and a shoulder strap, wherein the upper end of the shoulder strap is connected to the upper part of the bag body, and the lower end of the shoulder strap is connected to the lower part of the bag body, characterized in that: A front piece is provided on the front side of the bag body, one end of the front piece is a fixed end and is fixedly connected to the bag body, the other end of the front piece is a free end and is provided with a connecting female buckle, a traction belt is provided on the shoulder strap, one end of the traction belt is a fixed end and is fixedly connected to the shoulder strap, the other end of the traction belt is a free end and is provided with a connecting male buckle, and the traction belt can cross the upper part of the bag body to make the connecting male buckle cooperate with the connecting female buckle.

2. A lifting and load-reducing backpack according to claim 1, characterized in that: The shoulder strap is provided with a rope retracting device, and the retractable rope of the rope retracting device is connected to the fixed end of the traction belt.

3. A lifting and load-reducing backpack according to claim 2, characterized in that: The rope and belt retracting device comprises a telescopic rope, a base, a take-up wheel pivotally connected to the base, a transmission mechanism and a knob. The knob drives the take-up wheel through the transmission mechanism, and one end of the telescopic rope is wound around the take-up wheel.

4. A lifting and load-reducing backpack according to claim 1, characterized in that: A limiting channel is provided on the top of the package body, and the traction belt passes through the limiting channel.

5. The load-reducing backpack according to claim 1, characterized in that: The connecting female buckle is a female plug buckle, and the connecting male buckle is a male plug buckle.

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