CN110558709A

CN110558709A - Suspension burden-reducing backpack device

Info

Publication number: CN110558709A
Application number: CN201911037927.1A
Authority: CN
Inventors: 朱延河; 巨浩天; 纪胜昊; 赵杰
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2019-12-13
Anticipated expiration: 2039-10-29
Also published as: CN110558709B

Abstract

A suspension load-reducing backpack device relates to a backpack device, which comprises a back plate, a back connecting plate and two sets of force transmission mechanisms, wherein the two sets of force transmission mechanisms are arranged on two sides of the back plate; each force transmission mechanism comprises a cam, a disc, a spring and a flexible rope; the cam and the disc are arranged on two sides of the back plate, the cam and the disc are fixed on the same shaft, the shaft is rotatably installed on the back plate, one end of the spring is fixedly connected to the bottom of the back plate, the other end of the spring is connected with the cam through a flexible rope, the disc is wound with the flexible rope, the flexible rope is fixedly connected to a backpack connecting plate hung with a load, and the backpack connecting plate is slidably installed on the back plate. The invention has compact structure, can reduce the impact of inertia force on human body and has good load reduction effect.

Description

Suspension burden-reducing backpack device

Technical Field

The invention relates to a backpack device, in particular to a suspension load-reducing backpack device.

Background

With the continuous progress of science and technology development, the people's standard of living is continuously improved, and it becomes urgent need to possess a knapsack device that can subtract burden, and when the human body was born very heavy load at present, generally with the knapsack closely with the health laminating reduce the knapsack as far as possible because the inertia that the vibration produced from top to bottom strikes, but because the knapsack is that the back area is taken or the hasp links to each other with the human body, its effect of subtracting burden is not ideal.

Disclosure of Invention

The invention provides a suspension load-reducing backpack device for overcoming the defects of the prior art, which has a compact structure, can reduce the impact of inertia force on a human body and has a good load-reducing effect.

The technical scheme of the invention is as follows:

A suspension load-reducing backpack device comprises a back plate, a back connecting plate and two sets of force transmission mechanisms, wherein the two sets of force transmission mechanisms are arranged on two sides of the back plate; each force transmission mechanism comprises a cam, a disc, a spring and a flexible rope; the cam and the disc are arranged on two sides of the back plate, the cam and the disc are fixed on the same shaft, the shaft is rotatably installed on the back plate, one end of the spring is fixedly connected to the bottom of the back plate, the other end of the spring is connected with the cam through a flexible rope, the disc is wound with the flexible rope, the flexible rope is fixedly connected to a backpack connecting plate hung with a load, and the backpack connecting plate is slidably installed on the back plate.

Furthermore, the suspension load-reducing backpack also comprises a pulley and a slide rail; the pulley has the race, rotates on the connecting plate of back and installs the pulley, and it has two slot holes to open along vertical on the backplate, is fixed with the slide rail on the backplate that is located every slot hole edge, and the race of pulley pastes on the slide rail.

Furthermore, the suspension burden-reducing backpack further comprises a slide rail baffle, the slide rail baffle is arranged on the outer side of the slide rail, and the slide rail baffle is fixedly connected with the back plate and the slide rail.

Compared with the prior art, the invention has the following technical effects:

The backpack adopts the force transmission mechanism, has compact structure, is very light and durable, has a passive structure as a whole, meets the requirement of the movement of a human body under various frequencies, ensures the backpack to be static relative to the ground, and reduces the impact of inertia force on the human body. The human body does not feel tired when running or walking for a long distance.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of the present invention including a slide rail retainer;

FIG. 2 is a perspective view of the present invention with the slide rail baffles removed;

FIG. 3 is a perspective view of the present invention as viewed from the direction of the back connection plate;

FIG. 4 is a schematic diagram of the operation of the present invention;

FIG. 5 is a cam curve diagram of an embodiment of the present invention.

Detailed Description

as shown in fig. 1-3, a suspension load-reducing backpack device comprises a back plate 3, a back connecting plate 6 and two sets of force transmission mechanisms, wherein the two sets of force transmission mechanisms are arranged at two sides of the back plate 3;

Each force transmission mechanism comprises a cam 1, a disc 2, a spring 11 and a flexible rope 12; cam 1 and disc 2 set up in 3 both sides of backplate, and cam 1 and disc 2 fix on same root axis, the axle rotates and installs on backplate 3, and the one end rigid coupling of spring 11 is in 3 bottoms of backplate, and the other end of spring 11 passes through flexible rope 12 and links to each other with cam 1, and around having flexible rope 12 on disc 2, this flexible rope 12 rigid coupling is on hanging the knapsack connecting plate 6 that has the load, and knapsack connecting plate 6 slidable mounting is on backplate 3.

This embodiment adopts power transmission device, the design is at the both ends of backplate 3, spring 11 links to each other with cam 1 through flexible rope 12, cam 1 is fixed on same root axis with disc 2, around having flexible rope 12 on disc 2, flexible rope 12 is connected and is hung the knapsack connecting plate 6 of load, along with the up-and-down motion of human focus, spring 11 produces deformation, it is rotatory to drive cam 1 and disc 2 for knapsack connecting plate 6 up-and-down motion, but relative ground is static, the inertial impact to the human body has been reduced.

In order to reliably realize the sliding of the back connecting plate 6 on the back plate 3, as shown in fig. 2, the positioning and guiding of the pulleys and the slide rails are adopted, and the suspension load-reducing backpack further comprises the pulleys 4 and the slide rails 5; the pulley 4 is provided with a wheel groove, the pulley 4 is rotatably arranged on the back connecting plate 6, two long holes 3-1 are vertically arranged on the back plate 3, a sliding rail 5 is fixed on the back plate 3 at the edge of each long hole 3-1, and the wheel groove of the pulley 4 is attached to the sliding rail 5. In fig. 2, 2 pulleys 4 are arranged in each elongated hole or each slide rail 5, so as to ensure that the back connecting plate 6 can stably and reliably slide on the slide rail 5.

In order to prevent the pulley 4 from being separated from the slide rail 5 in the sliding process, the suspension load-reducing backpack further includes a slide rail baffle 7 in a baffle manner to prevent the pulley 4 from being separated from the slide rail 5, as shown in fig. 1, the slide rail baffle 7 is disposed outside the slide rail 5, and the slide rail baffle 7 is fixedly connected with the back plate 3 and the slide rail 5. Further, in order to ensure the smooth operation of the pulley 4, the slide rail baffle 7 is a U-shaped baffle. So arranged, the pulley 4 can be received in the groove of the U-shaped fence. Further, the slide rail baffle 7 and the slide rail 5 are integrally formed. So set up, processing equipment is portable, convenient to use.

In order to ensure that the back connecting plate 6 always moves on the slide rail 5, stop pins 8 are fixed on the upper side and the lower side, so that the back connecting plate 6 cannot fly out of the slide rail 5 when moving. The suspension load-reducing backpack further comprises a stop pin 8, and the upper end and the lower end of the back plate 3 are respectively and fixedly connected with the stop pin 8 for limiting the up-and-down movement of the back connecting plate 6.

the back plate 3, the back connecting plate 6 and the slide rail baffle 7 are made of carbon fiber materials. The material is light and not easy to deform. The cam 1 and the disc 2 are made of aluminum alloy. High strength and light weight. The effect that a single person can wear is achieved. The overall weight of the invention is set to be less than 1.8 kg.

Particularly, this device makes load keep static with ground as far as possible through power transmission device, along with the change of human quick walking or gravity center when running, spring 11 is stretched and shortens, spring 11 links to each other with cam 1 through flexible rope 12, drive cam 1 and be rotary motion, cam 1 links firmly on same root axis with disc 2, disc 2 is around having flexible rope 12, back connecting plate 6 is connected to flexible rope 12, it is up-and-down motion to drive back connecting plate 6, pulley 4 and slide rail 5 play the effect of location direction. In order to ensure that the back connecting plate 6 always moves on the slide rail 5, the stop pins 8 are fixed at the upper end and the lower end, so that the back connecting plate 6 cannot fly out of the slide rail 5 when moving. The stop pin 8 is fixed with a backpack strip, which is convenient for human body to wear. The schematic diagram is shown in fig. 4.

the device is more suitable for bearing a load of 25kg, when a human body walks or runs, the gravity center changes up and down to drive the spring to be stretched and shortened, and further drive the cam 1 to rotate, the flexible rope 12 is wound on the cam 1, and the curve of the cam 1 can be calculated by calculation when the load is 25kg, as shown in fig. 5, the tension force is continuously increased in the process that the spring 11 is stretched, but the distance from the tension force to the shaft is continuously reduced, the integral moment is kept unchanged, because the moment arm of force of the disc 2 is constant, the output force is constant and is constantly equal to 25kg, the final effect is that the back connecting plate 6 moves up and down together with the human body, the load and the ground are relatively static, the load is ensured not to move up and down together with the human body, and the human body feels tired due to the fact that the inertia force impacts on the human body.

The present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the invention.

Claims

1. The utility model provides a suspension burden reduction knapsack device which characterized in that: the device comprises a back plate (3), a back connecting plate (6) and two sets of force transmission mechanisms, wherein the two sets of force transmission mechanisms are arranged on two sides of the back plate (3);

Each force transmission mechanism comprises a cam (1), a disc (2), a spring (11) and a flexible rope (12); cam (1) and disc (2) set up in backplate (3) both sides, and cam (1) and disc (2) are fixed on same root axis, the axle rotates and installs on backplate (3), and the one end rigid coupling of spring (11) is in backplate (3) bottom, and the other end of spring (11) passes through flexible rope (12) and links to each other with cam (1), and around having flexible rope (12) on disc (2), this flexible rope (12) rigid coupling is on hanging knapsack connecting plate (6) that has the load, and knapsack connecting plate (6) slidable mounting is on backplate (3).

2. the apparatus of claim 1, wherein: the suspension load-reducing backpack further comprises a pulley (4) and a slide rail (5); the pulley (4) is provided with a wheel groove, the pulley (4) is rotatably installed on the back connecting plate (6), two long holes (3-1) are vertically formed in the back plate (3), a sliding rail (5) is fixed on the back plate (3) located at the edge of each long hole (3-1), and the wheel groove of the pulley (4) is attached to the sliding rail (5).

3. The apparatus of claim 2, wherein: the suspension load-reducing backpack further comprises a sliding rail baffle (7), the sliding rail baffle (7) is arranged on the outer side of the sliding rail (5), and the sliding rail baffle (7) is fixedly connected with the back plate (3) and the sliding rail (5).

4. The apparatus of claim 3, wherein: the suspension load-reducing backpack further comprises a stop pin (8), and the upper end and the lower end of the back plate (3) are respectively and fixedly connected with the stop pin (8) for limiting the back connecting plate (6) to move up and down.

5. The levitation load reduction backpack apparatus as recited in claim 3 or 4, wherein: the slide rail baffle (7) is a U-shaped baffle.

6. the apparatus of claim 5, wherein: the slide rail baffle (7) and the slide rail (5) are integrally manufactured.

7. the levitation load reduction backpack apparatus as recited in claim 3 or 6, wherein: the back plate (3), the back connecting plate (6) and the slide rail baffle (7) are made of carbon fiber materials.

8. the apparatus of claim 7, wherein: the cam (1) and the disc (2) are made of aluminum alloy.