阅读说明：本技术 具备减少冲击载荷和单向能量捕获能力的管式背包装置 (Tubular backpack device with impact load reduction and unidirectional energy capture capability ) 是由 陈晓 谢龙汉 杨振华 祖媛媛 黄乐登 王瑞诗 李茂辉 黄国威 冼晓明 孟令卿 林 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种具备减少冲击载荷和单向能量捕获能力的管式背包装置,包括背包、肩带和弹簧阻尼机构,肩带的下端与背包相连,上端穿过背包与设置在背包内部的弹簧阻尼机构连接,弹簧阻尼机构内部设置有单向离合器,该单向离合器用于在人体负重行走时能够单向地在人体重心向下位移的阶段进行能量捕获,同时利用背包重物振动与人体振动之间的相位差,减少背包对人体肩部的冲击载荷。本发明结构紧凑、体积小、重量轻、成本较低、制造方便,特别适合野外作业背负重物时使用。与传统发电悬浮背囊装置相比,本发明进行了单向的能量捕获,减少了人体的肩部冲击载荷,从而减少了潜在的代谢成本。(The invention discloses a tubular backpack device with the capabilities of reducing impact load and capturing unidirectional energy, which comprises a backpack, shoulder straps and a spring damping mechanism, wherein the lower ends of the shoulder straps are connected with the backpack, the upper ends of the shoulder straps penetrate through the backpack and are connected with the spring damping mechanism arranged in the backpack, a unidirectional clutch is arranged in the spring damping mechanism and used for capturing energy at the stage that the gravity center of a human body is displaced downwards in a unidirectional manner when the human body walks with a load, and meanwhile, the impact load of the backpack on the shoulders of the human body is reduced by utilizing the phase difference between the vibration of a heavy object of the backpack and the vibration of the human body. The invention has compact structure, small volume, light weight, lower cost and convenient manufacture, and is particularly suitable for carrying heavy objects in field operation. Compared with the traditional power generation suspension knapsack device, the invention carries out unidirectional energy capture, reduces the shoulder impact load of the human body and further reduces the potential metabolic cost.)

1. A tubular backpack device having impact load reduction and unidirectional energy capture capabilities, comprising: the backpack comprises a backpack (1), shoulder straps (2) and a spring damping mechanism, wherein the spring damping mechanism is arranged on the backpack (1); the lower end of the shoulder strap (1) is connected with a backpack, and the upper end of the shoulder strap (1) is fixedly connected with one end of the spring damping mechanism; the spring damping mechanism enables the wave crest of the human body vibration to correspond to the wave trough of the backpack load vibration, thereby reducing the impact load of the backpack on the shoulders of the human body and lightening the burden of the human body on carrying heavy objects; the spring damping mechanism is internally provided with a one-way clutch which is used for capturing energy in a stage that the gravity center of a human body is displaced downwards in a one-way mode when the human body walks with a load, and meanwhile, the impact load of the backpack on the shoulders of the human body is reduced by utilizing the phase difference between the vibration of a backpack heavy object and the vibration of the human body.

2. The device of claim 1, wherein the backpack includes a tubular backpack having impact load reduction and unidirectional energy capture capabilities, wherein: the spring damping mechanism is arranged inside the backpack (1) and comprises a fixed frame (6) and two spring damping assemblies fixedly arranged on the fixed frame, each spring damping assembly comprises a coil spring mounting shell (3), a shoulder strap fixed shaft mounting shell (4), a generator fixed shell (5), a clockwork spring shaft (8), a clockwork spring (9), a shoulder strap fixed shaft (10), a power transmission shaft (11), a one-way clutch (12) and a generator (13) with a speed increasing mechanism, one end of the shoulder strap (2) is connected with the backpack (1), and the other end of the shoulder strap (2) is fixed and wound on the shoulder strap fixed shaft (10); the two ends of the shoulder strap fixing shaft (10) are connected with a shoulder strap fixing shaft mounting shell through bearings, the clockwork spring shaft (8) and the shoulder strap fixing shaft (10) are coaxially mounted and fixed through bolts, and the power transmission shaft (11) and the shoulder strap fixing shaft (10) are coaxially mounted and fixed through bolts; when the shoulder strap (2) pulls the shoulder strap fixing shaft (10) to rotate, the shoulder strap fixing shaft (10) can drive the clockwork spring shaft (8) and the power transmission shaft (11) to rotate and transmit power.

3. The device of claim 1, wherein the backpack includes a tubular backpack having impact load reduction and unidirectional energy capture capabilities, wherein: the shoulder straps (2) are made of nylon fiber materials.

4. The device of claim 2, wherein the backpack further comprises: the spring damping assemblies are fixed on the fixed frame (6) through mounting buckles (7), and the two spring damping assemblies are arranged symmetrically and coaxially with respect to the center line of the fixed frame (6).

5. The device of claim 2, wherein the backpack further comprises: a coil spring mounting shell (3), a shoulder belt fixing shaft mounting shell (4), a generator fixing shell (5), a shoulder belt fixing shaft (10), a clockwork spring (9), a clockwork spring shaft (8), a power transmission shaft (11), a one-way clutch (12) and a generator (13) with a speed increasing mechanism in the spring damping component are coaxially arranged; the coil spring mounting shell (3) and the shoulder strap fixing shaft mounting shell (4) are fixed through bolts, and the shoulder strap fixing shaft mounting shell (4) and the generator fixing shell (5) are fixed through bolts.

6. The device of claim 2, wherein the backpack further comprises: key grooves are designed and keys are installed on the power transmission shaft (11), the one-way clutch (12) and the motor output shaft of the generator (13) with the speed increasing mechanism; the power transmission shaft (11) transmits power to the one-way clutch (12) through a key, and the one-way clutch (12) transmits power to the generator (13) with the speed increasing mechanism through a key.

7. The device of claim 2, wherein the backpack further comprises: the shoulder strap fixing shaft mounting shell (4) is provided with a groove which can allow the shoulder strap (2) to pass through and be connected with the shoulder strap fixing shaft (10), and the shoulder strap (2) is not contacted with the shoulder strap fixing shaft mounting shell (4) in the movement process.

8. The device of claim 2, wherein the backpack further comprises: when the shoulder belt (2) is stretched, the one-way clutch (12) does not transmit power to the generator (13) with the speed increasing mechanism, and the generator (13) with the speed increasing mechanism does not work; when the shoulder belt (2) is shortened, the one-way clutch (12) transmits power to the generator (13) with the speed increasing mechanism, and the generator (13) with the speed increasing mechanism works.

9. The device of claim 2, wherein the backpack further comprises: the clockwork spring (9) is arranged in the coil spring mounting shell (3), and when the shoulder strap (2) is elongated, the clockwork spring (9) stores kinetic energy; when the shoulder belt (2) is shortened, the spring energy is released by the clockwork spring (9).

Technical Field

The invention relates to the field of human body wearing equipment, in particular to a tubular backpack device which can effectively reduce impact load on shoulders when a human body bears a heavy object and can capture energy in a single direction.

Background

In the military field, war informatization becomes a future development trend, and soldiers need to carry more electronic equipment to fight. This has led to a constantly increasing load on equipment carried by soldiers, creating challenges to the physical performance of the soldiers. When a person carries a heavy object to walk, the center of gravity of the person can generate a periodic displacement in the direction of the vertical axis, and meanwhile, the backpack also moves along with the person. Therefore, in the walking process, the backpack exerts a dynamic force on the shoulders of the human body, the dynamic force fluctuates dynamically up and down in the gravity value of the load along with the periodic change of walking, and the peak value can reach 2-3 times of the gravity value of the load. Meanwhile, with the use of more and more individual electronic devices, the demand and the dependence of soldiers on electric energy are higher and higher, and the individual electric energy guarantee becomes one of important factors for restricting the individual combat capability and the survival maintenance capability in an information-based battlefield. The current electric energy supplement is generally carried out by replacing batteries, which means that soldiers need to carry extra batteries for fighting, and the soldiers are burdened with weight. Therefore, it is necessary and significant to find a device which can provide certain assistance to the human body, reduce the impact load of the shoulders of the human body, efficiently collect the energy in the environment and provide continuous electric energy endurance for soldiers. Through retrieval, no method or device similar to the method or device is available at present, and the method or device is used for reducing the impact load when a human body bears a heavy object and can capture energy.

Disclosure of Invention

In order to solve the problems, the invention provides a tubular backpack device with the capabilities of reducing impact load and capturing unidirectional energy. Analysis shows that the tubular backpack device can effectively reduce impact load on shoulders of a human body in the walking process, can efficiently collect negative work when the gravity center of the human body is displaced downwards and convert the negative work into electric energy, is particularly suitable for field operators, soldiers, backpackers and the like which need to bear high load and need electric energy endurance, reduces shoulder burden and improves operation efficiency.

The invention is realized by adopting the following technical scheme:

the invention discloses a tubular backpack device with the capabilities of reducing impact load and capturing unidirectional energy, which comprises a backpack, shoulder straps and a spring damping mechanism, wherein the lower ends of the shoulder straps are connected with the backpack, the upper ends of the shoulder straps penetrate through the backpack and are connected with the spring damping mechanism arranged in the backpack, a unidirectional clutch is arranged in the spring damping mechanism, energy capturing can be performed in a unidirectional mode at the stage that the gravity center of a human body is displaced downwards when the human body walks with a load, and meanwhile, the impact load of the backpack on the shoulders of the human body is reduced by utilizing the phase difference between the vibration of a backpack heavy object and the vibration of the human body.

The invention uses the difference between the natural frequency of the spring mass damping system composed of the heavy object and the spring damping mechanism and the walking vibration frequency of the human body to construct the phase difference between the vibration of the spring mass damping system and the vibration of the human body, thereby achieving the purpose of reducing the dynamic impact load of the shoulder. When a human body walks, the human body bears a heavy object through the shoulder straps to move, and the heavy object and the spring damping system form an oscillating system and vibrate along with the vibration of the human body. The proper spring damping system parameters are selected to enable the wave crest of the human body vibration to correspond to the wave trough of the backpack load vibration, so that the impact load of the backpack on the human body shoulder can be reduced, and the burden of the human body on carrying heavy objects is reduced. Meanwhile, a one-way clutch is added in a transmission mechanism of the system, the speed is input into the generator when the gravity center of the human body moves upwards and the backpack moves downwards, and the generator is disconnected from the movement of the generator when the gravity center of the human body moves downwards and the backpack moves upwards, so that the negative work in the movement of the human body is captured in a one-way manner, and the metabolism cost of the human body is reduced.

Further, spring damping mechanism set up the inside of knapsack, spring damping mechanism includes fixed frame and two fixed mounting are in spring damping subassembly on the fixed frame, every spring damping subassembly includes baldric, wind spring installation shell, baldric fixed axle installation shell, generator fixed shell, baldric fixed axle, clockwork spring axle, power transmission shaft, one-way clutch, takes the generator of acceleration rate mechanism. One end of the shoulder strap is connected with the backpack, the other end of the shoulder strap is fixed on the shoulder strap fixing shaft, the backpack load is connected with the spring damping system to form the spring mass damping system, and the spring mass damping system responds to the vibration of the human body. The shoulder strap is made of nylon fiber materials, so that the strength of the device is improved, and the service life of the device is prolonged.

Furthermore, the spring damping components are fixed on the fixed frame through the mounting buckles, and the two spring damping components are arranged symmetrically and coaxially with respect to the center line of the fixed frame, so that the input speeds of the two spring damping mechanism components are approximately the same when the backpack vibrates due to human body vibration, the backpack is prevented from tilting left and right, and the load-bearing load is uniformly distributed on the shoulders.

Furthermore, a coil spring mounting shell, a shoulder belt fixing shaft mounting shell, a generator fixing shell, a shoulder belt fixing shaft, a clockwork spring shaft, a power transmission shaft, a one-way clutch and a generator with a speed increasing mechanism in the spring damping assembly are coaxially arranged, the transmission sequence is reasonably arranged, the size and the weight of the device are reduced, and therefore the influence of the weight of the device on a user is reduced.

Furthermore, key grooves and keys are arranged on the power transmission shaft, the one-way clutch and the motor output shaft of the generator with the speed increasing mechanism. The power transmission shaft transmits power to the one-way clutch through the key, and the one-way clutch transmits power to the generator with the speed increasing mechanism through the key.

Further, the shoulder strap fixing shaft mounting case is designed with a groove allowing the shoulder strap to pass therethrough and be connected with the shoulder strap fixing shaft, and the shoulder strap is not in contact with the shoulder strap fixing shaft mounting case during exercise, thereby reducing friction, and improving collection efficiency of energy capture and stability of the backpack device.

Further, when the shoulder belt is elongated, the one-way clutch does not transmit power to the generator with the speed increasing mechanism, and the generator with the speed increasing mechanism does not work; when the shoulder belt is shortened, the one-way clutch transmits power to the generator with the speed increasing mechanism, and the generator with the speed increasing mechanism works. The time of inputting power to the motor is controlled by the one-way clutch, so that one-way energy capture when the gravity center of the human body moves downwards is realized, and the metabolism cost of the human body is reduced.

Further, the clockwork spring is arranged in the coil spring mounting shell, and stores kinetic energy when the shoulder belt is stretched; when the shoulder belt is shortened, the spring releases the spring energy. The spring provides restoring force for the upward movement of the backpack, so that the backpack can reciprocate, the space is saved, and the weight of the device is reduced.

The invention skillfully arranges the one-way clutch as a transmission mechanism, and controls the time of inputting the speed to the generator through the one-way clutch, thereby realizing the one-way energy capture of the negative work of the human body. Meanwhile, loads with different masses are matched with different spring stiffness coefficients and damping coefficients, so that the backpack vibration and the human body vibration form a phase difference, the purpose of load reduction is realized, the structure is innovative, the design is compact, the mass is light, the cost is low, the processing is convenient, the high load burden during field operation is effectively relieved, and the problem of field electric energy endurance is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the tube-type backpack device according to the present invention.

Fig. 2 is an overall schematic view of the spring damping system according to the present invention.

Fig. 3 is a schematic diagram of the internal structure of the spring damping system according to the present invention.

In the figure: 1-a backpack; 2-shoulder straps; 3-a coil spring mounting housing; 4-the shoulder belt fixing shaft is arranged on the shell; 5-the generator is fixed on the shell; 6-fixing the frame; 7, mounting a buckle; 8-spring shaft; 9-a clockwork spring; 10-shoulder belt fixing shaft; 11-a power transmission shaft; 12-a one-way clutch; 13-generator with speed increasing mechanism.

Detailed Description

The present invention will be further described with reference to the following examples, but is not limited thereto.

As shown in fig. 1 and 2, a tubular backpack device having impact load reduction and unidirectional energy capturing capability includes a backpack 1, shoulder straps 2, and a spring damper mechanism, wherein the lower ends of the shoulder straps 2 are connected to the backpack 1, the upper ends of the shoulder straps pass through the backpack 1 and are connected to the spring damper mechanism provided inside the backpack 1, and the spring damper mechanism is provided inside with a unidirectional clutch 12, so that energy can be captured at a stage where the center of gravity of a human body is displaced downward in a unidirectional manner when the user walks with a load, and the impact load of the backpack on the shoulders of the human body can be reduced by using a phase difference between the vibration of a weight of the backpack and the vibration of the human body.

In the pipe-type backpack device (load-reducing power generation backpack device) provided in this embodiment, the phase difference between the vibration of the spring mass damping system and the vibration of the human body is constructed by using the difference between the natural frequency of the spring mass damping system composed of the weight and the spring damping mechanism and the walking vibration frequency of the human body, so as to achieve the purpose of reducing the dynamic impact load on the shoulder. When a human body walks, the human body bears a heavy object through the shoulder straps to move, and the heavy object and the spring damping system form an oscillating system and vibrate along with the vibration of the human body. The proper spring damping system parameters are selected to enable the wave crest of the human body vibration to correspond to the wave trough of the backpack load vibration, so that the impact load of the backpack on the human body shoulder can be reduced, and the burden of the human body on carrying heavy objects is reduced. Meanwhile, a one-way clutch is added in a transmission mechanism of the system, the speed is input into the generator when the gravity center of the human body moves upwards and the backpack moves downwards, and the generator is disconnected from the movement of the generator when the gravity center of the human body moves downwards and the backpack moves upwards, so that the negative work in the movement of the human body is captured in a one-way manner, and the metabolism cost of the human body is reduced.

Specifically, the spring damping mechanism is arranged inside the backpack 1, the spring damping mechanism comprises a fixed frame 6 and two spring damping components fixedly arranged on the fixed frame 6, each spring damping component is arranged outside the tubular shell and comprises a coil spring mounting shell 3, a shoulder belt fixing shaft mounting shell 4, a generator fixing shell 5, a shoulder belt fixing shaft 10, a clockwork spring 9, a clockwork spring shaft 8, a power transmission shaft 11, a one-way clutch 12 and a generator 13 with a speed increasing mechanism, one end of the shoulder belt 2 is connected with the backpack 1 by sewing or buckling, and the other end of the shoulder belt 2 is fixed and wound on the shoulder belt fixing shaft 10 by sewing. Both ends of the shoulder strap fixing shaft 10 are connected to the case using bearings, the clockwork spring shaft 8 is coaxially installed with the shoulder strap fixing shaft 10 and fixed by bolts, and the power transmission shaft 11 is coaxially installed with the shoulder strap fixing shaft 10 and fixed by bolts. When the shoulder strap 2 pulls the shoulder strap fixing shaft 10 to rotate, the shoulder strap fixing shaft 10 can drive the clockwork spring shaft 8 and the power transmission shaft 11 to rotate and transmit power. The transmission sequence is reasonably arranged, and the volume and the weight of the device are reduced, so that the influence of the weight of the device on a user is reduced.

Specifically, the shoulder straps 2 connect the backpack load to the spring damping system to form a spring mass damping system. The shoulder strap 2 is made of nylon fiber materials, so that the strength of the device is improved, and the service life of the device is prolonged.

Specifically, the spring damping components are installed on the tubular shell and fixed on the fixed frame 6 through installing the buckles 7, and the two spring damping components are arranged symmetrically and coaxially with respect to the center line of the fixed frame 6, so that the input speeds of the two spring damping mechanism components are approximately the same when the backpack vibrates due to human body vibration, the backpack is prevented from inclining left and right, the human body balance is maintained, and the load is uniformly distributed on shoulders.

Specifically, the coil spring mounting shell 3, the shoulder strap fixing shaft mounting shell 4, the generator fixing shell 5, the shoulder strap fixing shaft 10, the clockwork spring 9, the clockwork spring shaft 8, the power transmission shaft 11, the one-way clutch 12 and the generator 13 with the speed increasing mechanism in the spring damping assembly are coaxially arranged. The coil spring mounting shell 3, the shoulder belt fixing shaft mounting shell 4 and the generator fixing shell 5 are tubular shells, do not participate in the transmission movement of the system, and play roles in wrapping and protecting. The coil spring mounting housing 3 and the shoulder strap fixing shaft mounting housing 4 are fixed by bolts, and the shoulder strap fixing shaft mounting housing 4 and the generator fixing housing 5 are fixed by bolts. The shoulder strap fixing shaft 10, the clockwork spring 9, the clockwork spring shaft 8, the power transmission shaft 11, the one-way clutch 12 and the generator 13 with the speed increasing mechanism are transmission parts of the system, two ends of the shoulder strap fixing shaft 10 are connected with a mounting shell of the shoulder strap fixing shaft through bearings, the clockwork spring shaft 8 and the shoulder strap fixing shaft 10 are coaxially mounted and fixed through bolts, the power transmission shaft 11 and the one-way clutch 12 are coaxially mounted and a key is mounted on the one-way clutch 12, and the one-way clutch 12 and an input shaft of the generator 13 with the speed increasing mechanism are coaxially mounted and a key is mounted on the input shaft of the generator.

Specifically, the power transmission shaft 11 is designed with a key groove, the outer ring of the one-way clutch 12 is designed with a key groove, and the key is fixed on the outer ring of the one-way clutch 12 and has a matching relation with the key groove on the power transmission shaft 11. When the power transmission shaft 11 rotates, power is transmitted to the outer ring of the one-way clutch 12 through the keys and drives the outer ring of the one-way clutch 12 to rotate. A key groove is designed on the motor input shaft of the generator 13 with the speed increasing mechanism, a key groove is designed on the inner ring of the one-way clutch 12, and a key is fixed on the input shaft of the generator 13 with the speed increasing mechanism and has a matching relation with the key groove on the inner ring of the one-way clutch 12. The outer ring and the inner ring of the one-way clutch 12 have a separable function, when the outer ring rotates in the forward direction and the rotating speed is higher than that of the inner ring, the outer ring and the inner ring are regarded as rigid bodies, and the outer ring drives the inner ring to rotate and transmit power; when the outer race of the one-way clutch 12 rotates in the forward direction and the rotational speed is smaller than the rotational speed of the inner race or rotates in the reverse direction, the outer race and the inner race are in a separated state, the outer race does not transmit power to the inner race, and the motions of the outer race and the inner race do not affect each other. Therefore, when the outer race of the one-way clutch 12 is rotating in the forward direction and the rotational speed is higher than the rotational speed of the input shaft of the generator 13 with the speed increasing mechanism, the one-way clutch 12 and the generator 13 with the speed increasing mechanism can be regarded as rigid bodies, and the one-way clutch 12 transmits power to the generator 13 with the speed increasing mechanism through the key and drives the generator 13 with the speed increasing mechanism to rotate; when the outer race of the one-way clutch 12 is rotated in the forward direction and the rotational speed is smaller than the rotational speed of the input shaft of the generator 13 with the speed increasing mechanism or the outer race of the one-way clutch 12 is rotated in the reverse direction, the one-way clutch 12 and the generator 13 with the speed increasing mechanism are in a disengaged state, and the one-way clutch 12 does not transmit power to the generator 13 with the speed increasing mechanism.

Specifically, the shoulder strap fixing shaft mounting housing 4 is designed with a rectangular hole slot, the width of the hole slot is larger than that of the shoulder strap 2, the shoulder strap 2 can be allowed to be connected with the shoulder strap fixing shaft 10 through the hole slot, the movement range of the shoulder strap 2 is in the slot and is not contacted with the shoulder strap fixing shaft mounting housing 4 during movement, friction is reduced, the collection efficiency of energy capture and the stability of the backpack device are improved, and the service life of the device is prolonged.

Specifically, when the center of gravity of a human body moves upwards, the shoulder belt 2 is stretched to drive the shoulder belt fixing shaft 10 to rotate, the shoulder belt fixing shaft 10 transmits power to the power transmission shaft 11, the power transmission shaft 11 transmits power to the outer ring part of the one-way clutch 12 through keys, and at the moment, the outer ring is in a reverse rotation state and does not transmit power to the input shaft of the generator 13 with the speed increasing mechanism, so that the generator does not work and does not capture energy. When the gravity center of a human body moves downwards, the shoulder strap 2 is shortened by restoring force provided by the clockwork spring to drive the shoulder strap fixing shaft 10 to rotate, the shoulder strap fixing shaft 10 transmits power to the power transmission shaft 11, the power transmission shaft 11 transmits the power to the outer ring part of the one-way clutch 12 through keys, the outer ring is in a positive rotation state at the moment, when the rotation speed of the outer ring is greater than the rotation speed of the input shaft of the generator 13 with the speed increasing mechanism, the speed is input to the generator 13 with the speed increasing mechanism, the generator is in a working state, and the energy of the motion of the human body is captured at the moment. The time of inputting power to the motor is controlled by the one-way clutch, so that one-way energy capture when the gravity center of the human body moves downwards is realized, and the metabolism cost of the human body is reduced.

Specifically, the spiral spring 9 is mounted in the spiral spring mounting case 3, an outer hook of the spiral spring 9 is fixed to the spiral spring mounting case 3, and an inner hook is fixed to the spiral spring shaft 8. When the shoulder strap 2 is stretched, the shoulder strap fixing shaft 10 is driven to rotate, the shoulder strap fixing shaft 10 transmits power to the clockwork spring shaft 8 and drives the clockwork spring shaft 8 to rotate, and therefore the inner hook is driven to rotate in the forward direction. Since the outer hook is fixed to the coil spring mounting case 3 and the inner hook is positively rotated, the clockwork spring 9 starts to operate and converts the kinetic energy into the spring energy. When the pulling force provided by the person to the shoulder strap 2 is smaller than the spring force of the spring 9, the spring force of the spring 9 acts as a restoring force to shorten the shoulder strap 2, and the inner hook of the spring 9 rotates reversely to convert the spring energy into kinetic energy of the backpack movement.

When a human body walks, the human body bears a heavy object through the shoulder straps to move, and the heavy object and the spring damping system form an oscillating system and vibrate along with the vibration of the human body. The proper spring damping system parameters are selected to enable the wave crest of the human body vibration to correspond to the wave trough of the backpack load vibration, so that the impact load of the backpack on the human body shoulder can be reduced, and the burden of the human body on carrying heavy objects is reduced. Meanwhile, a one-way clutch is added in a transmission mechanism of the system, the speed is input into the generator when the gravity center of the human body moves upwards and the backpack moves downwards, and the generator is disconnected from the movement of the generator when the gravity center of the human body moves downwards and the backpack moves upwards, so that the negative work in the movement of the human body is captured in a one-way manner, and the metabolism cost of the human body is reduced.

The spring damping mechanism capable of capturing the kinetic energy of the human body in one direction is ingeniously arranged, the energy is captured only in the stage that the center of gravity of the human body moves downwards, and meanwhile, the spring damping mechanism is utilized to enable the backpack vibration and the human body vibration to form a phase difference, so that the aim of reducing the shoulder impact load is fulfilled.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.