CN111297023A

CN111297023A - Load-reducing suspension system and backpack

Info

Publication number: CN111297023A
Application number: CN202010246529.7A
Authority: CN
Inventors: 赵文龙
Original assignee: Nanjing Qiangjun Defense Technology Research Institute Co ltd
Current assignee: Nanjing Qiangjun Defense Technology Research Institute Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-19

Abstract

The invention belongs to the field of backpacks, and particularly relates to a load-reducing suspension system for remarkably reducing the force of a load acting on a wearer and a backpack with the load-reducing suspension system; the load-reducing suspension system comprises a fixed plate and a sliding plate, wherein the sliding plate is connected to the fixed plate through a sliding part, an adjustable elastic component is arranged on the fixed plate, the movable end of the adjustable elastic component is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load; the adjustable elastic component can be adjusted to be matched with the load weight according to different actual loads, has a better deformable space within the range of rated loads, and can further effectively play a role in reducing the load.

Description

Load-reducing suspension system and backpack

Technical Field

The invention belongs to the field of backpacks, and particularly relates to a load-reducing suspension system for remarkably reducing the force of a load acting on a wearer and a backpack with the load-reducing suspension system.

Background

As a common load transportation mode, the backpack is commonly used for field survival, military police duty, emergency rescue, mountain climbing and other activities. For a common backpack, when the backpack is stationary, the force exerted on the body by the backpack is only static and is equal to the weight of the backpack. However, when walking or running while wearing the backpack, the peak force exerted on the body can increase significantly to 2-3 times greater than the static force, and this increase in peak force can exert very large forces on the joints, resulting in muscle damage and even joint injury.

Studies have shown that peak forces are related to the rolling motion of the body. The rolling motion of the body during travel can result in vertical movement of the backpack. The power of the vertical movement of the backpack is given by the body. In turn, the backpack also exerts a downward force on the shoulders and body. This downward force will cause the ground to react more to the foot when the foot is in contact with the ground than at rest, thereby increasing the force on the joint. This also increases the energy consumption of the wearer when walking, greatly increasing the physical burden.

Rome Philippines, foreign scholars, have developed load-reducing suspension backpacks that utilize bungee cords and pulleys as a flexible connection system. The related results have been applied for patent of invention by LIGHTNING PACKS corporation in 2007 (US2008185411A 1). However, in several configurations of the patent, no mature product is seen in the market after 10 years. Through research, the rubber elastic rope is used for many times in the design, and the elastic rope is always in a tensioning state. This results in a product that has a short life and is easily damaged. In addition, in the design, the rubber elastic rope can only adapt to the load with specific weight, if the weight is not enough, the backpack can rise above the back and is difficult to slide on the back in a free state, and when the weight is over, the backpack can fall to the hip and is also difficult to slide on the back in a free state, so that the adjustment according to the weight of the load is difficult, and the satisfactory load reduction effect can not be achieved aiming at the rated load.

Furthermore, in the prior art, a linear type common spring is also adopted as an elastic body, a common tension spring can generally stretch 50% of the original length of the spring, and in order to achieve a better load reduction effect, if only 50% of the original length can be stretched, the total length of the back of a human body is about 60 cm, therefore, the maximum length can be stretched by only about 20 cm, the elastic coefficient of the spring is large, and the effect of suspension load reduction is difficult to meet.

Disclosure of Invention

Aiming at the problems in the prior art, the adjustable elastic component is designed, the matching between the adjustable elastic component and the load weight can be adjusted according to the difference of actual loads, the adjustable elastic component has a better deformable space within the range of rated loads, so that the effect of reducing the load can be effectively achieved, and the problem that an elastic rope and a common spring in the prior art are difficult to adjust is solved.

The technical scheme of the invention is as follows:

the load-reducing suspension system comprises a fixed plate and a sliding plate, wherein the sliding plate is connected to the fixed plate through a sliding part, and the load-reducing suspension system is characterized in that: the adjustable elastic component is arranged on the fixed plate, the movable end of the adjustable elastic component is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

The adjustable elastic assembly comprises a torque assembly and a torque adjusting assembly, the torque adjusting assembly comprises a rope connected with the torque assembly, a rope locking device is arranged on the fixed plate, the other end of the rope is connected with the rope locking device, the rope between the torque assembly and the rope locking device forms a U-shaped transition section, a rope passing assembly is arranged at the bottom of the U-shaped transition section, and the rope passing assembly is connected with the sliding plate.

The moment subassembly include fixed connection at the dabber on the fixed plate and be connected and rotatable spring box with the dabber, still include a spiral spring, spiral spring's coiling sets up on the dabber and inner and be connected with the dabber, spiral spring's outer end and spring box's inner wall connection, the rope is convoluteed on spring box's surface.

And the fixed plate is also provided with a storage assembly for storing the rope extending out of the rope locking device.

The adjustable elastic component comprises a moment component and a moment adjusting component, the moment component comprises a mandrel which is rotationally connected with the fixed plate, the end part of the spring box is fixedly connected to the fixed plate, the end part of the mandrel extends out of the spring box, the spring box also comprises a scroll spring, the scroll spring is wound on the mandrel, the inner end of the scroll spring is connected with the mandrel, the outer end of the scroll spring is connected with the inner wall of the spring box, the spring box also comprises a wheel-shaped winding drum, the center of the winding drum is connected with the mandrel extending out of the spring box, the moment adjusting component comprises a rope connected with the moment component, the fixed plate is provided with a rope locker, the other end of the rope is connected with the rope locker, the rope between the moment component and the rope locking device forms a U-shaped transition section, the bottom of the U-shaped transition section is provided with a rope passing component, and the rope passing component is connected with the sliding plate.

The adjustable elastic assembly comprises an adjustable torque assembly, the adjustable torque assembly comprises an adjustable mandrel assembly which is installed on a fixed plate and can rotate and be locked, a rotatable spring box is connected onto the adjustable mandrel assembly, a volute spiral spring which is wound on a mandrel is arranged between the adjustable mandrel assembly and the spring box, one end of the volute spiral spring is connected with the mandrel, the other end of the volute spiral spring is connected with the inner wall of the spring box, the adjustable elastic assembly further comprises a rope which is wound on the surface of the spring box, and the movable end of the rope is connected with a sliding plate.

The adjustable elastic assembly comprises two symmetrically arranged adjustable torque assemblies, each adjustable torque assembly comprises an adjustable mandrel assembly which is installed on the fixed plate and can rotate and be locked, a rotatable spring box is connected onto each adjustable mandrel assembly, a volute spiral spring wound on the mandrel is arranged between each adjustable mandrel assembly and the corresponding spring box, one end of each volute spiral spring is connected with the mandrel, the other end of each volute spiral spring is connected with the inner wall of the corresponding spring box, the volute spiral springs of the two adjustable torque assemblies are opposite in rotation direction, the adjustable elastic assemblies further comprise ropes wound on the surfaces of the spring boxes, the movable ends of the two ropes are connected together to form a U-shaped transition section, the rope passing assemblies are arranged at the bottom of the U-shaped transition section, and the rope passing assemblies are connected with the sliding plate.

Adjustable dabber subassembly include fixed axle of fixed connection on the fixed plate, be equipped with the loose axle that rotates and lock on the fixed axle, volute spiral spring's one end is connected on the loose axle, still is equipped with locking Assembly on the fixed axle, locking Assembly breaks away from with the loose axle when the loose axle needs to rotate, and the loose axle of being convenient for is rotatory, when the loose axle is rotatory to suitable position, locking Assembly and loose axle contact lock the position of loose axle for the fixed axle.

The adjustable core shaft assembly comprises a core shaft mounting plate fixedly connected to a fixing plate, a rotatable rotating shaft is arranged on the core shaft mounting plate, the adjusting end of the rotating shaft is exposed out of the core shaft mounting plate, an adjusting hole corresponding to the adjusting end is formed in the fixing plate, a rotation locking assembly for locking the rotating shaft is arranged on the core shaft mounting plate, a connecting end is arranged at the other end of the rotating shaft, and the spring box is rotatably connected to the connecting end.

The sliding parts are a sliding sleeve and a sliding rod, a sliding block and a sliding rail or a pulley trolley and a sliding rail.

The knapsack, it includes fixed plate and sliding plate, and the sliding plate passes through the sliding part to be connected on the fixed plate, be equipped with the both shoulders area and the waistband of bearing on the back in the human body on the fixed plate, still include the load that sets up with the sliding plate is integrative or the components of a whole that can function independently and hold part, its characterized in that: the adjustable elastic component is arranged on the fixed plate, the movable end of the adjustable elastic component is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

The invention has the following beneficial effects: the load-reducing suspension system can adjust the adjustable elastic component according to different actual loads, so that the force of the adjustable elastic component is matched with the weight of the load, a stable and reliable sliding space of the sliding plate on the fixed plate is also ensured, the reverse acting force generated by the load can be effectively reduced in the using process, the burden of the body of people is greatly lightened, and the energy consumption of a bearer during walking is reduced;

furthermore, the invention adopts the volute spiral spring as the moment component of the adjustable elastic component, the volute spiral spring has a deformation range far beyond that of a common spring and an elastic rope in the same space, and the main body of the volute spiral spring is made of metal, so that the volute spiral spring has longer service life and better environmental adaptability than the elastic rope made of high molecular rubber.

Drawings

FIG. 1 is a side schematic view of a load reducing suspension system;

FIG. 2 is a schematic front view of embodiment 1 of the load relief suspension system with the sliding plate removed;

FIG. 3 is a schematic structural view of a torque module according to embodiment 1;

FIG. 4 is a schematic front view of embodiment 2 of the load relief suspension system with the sliding plate removed;

FIGS. 5 and 6 are schematic views of two different configurations of an adjustable elastic assembly;

FIG. 7 is a schematic elevational view of embodiment 3 of the load relief suspension system with the sliding plate removed;

FIG. 8 is a schematic front view of embodiment 4 of the load relief suspension system with the sliding plate removed;

FIG. 9 is a schematic structural view of a torque module according to embodiment 4;

FIG. 10 is a schematic view of the construction of the backpack;

in the figure, 1 is a fixing plate; 2 is a sliding plate; 3 is a sliding part; 4 is an adjustable elastic component;

40 is a moment component; 401 is a mandrel, 402 is a spring box, 403 is a volute spring, and 404 is a winding drum;

41 is a moment adjusting component;

43 is a rope;

44 is a rope locker;

45 is an adjustable moment component, 450 is an adjustable mandrel component, 4501 is a fixed shaft, 4502 is a movable shaft, 4503 is a locking component, 4504 is a mandrel mounting plate, 4505 is a rotating shaft, 101 is an adjusting hole, 4506 is a rotation locking component, 4507 is a connecting end,

46 is a rope passing component; 110 are double shoulder straps and a waist strap, and 20 is a load-receiving component.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Example 1

As shown in fig. 1 to 3, the load-reducing suspension system includes a fixed plate 1 and a sliding plate 2, wherein the sliding plate 2 is connected to the fixed plate 1 by a sliding member 3, and is characterized in that: the adjustable elastic component 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic component 4 is connected with the sliding plate 2, the adjustable elastic component can be adjusted according to the load on the sliding plate, the force output by the adjustable elastic component is just counteracted with the gravity of the load, when the load is hung on the movable plate, the movable plate can move downwards under the action of the load, if the sliding plate slides to the lower limit position of the sliding part, the whole load-reducing suspension system is in a failure state, and the load-reducing effect cannot be achieved, at the moment, the embodiment can adjust the adjustable elastic component, the force output by the adjustable elastic component is just counteracted with the gravity of the load, and the sliding plate is positioned at a position capable of sliding up and down on the sliding part, at the moment, during traveling, the body can move up and down, and the fixed plate can move up and down with the body when being carried on the, the sliding plate can slide up and down on the sliding part, so as to reduce the amplitude of the vertical displacement of the load, reduce the acting force acting on the bearer, reduce the energy consumption during the running process, and effectively realize the burden reduction effect, compared with the prior art, the burden reduction suspension system in the prior art supports the load through the elasticity of the elastic rope or the common spring, after the load is loaded, the elastic rope or the common spring is in a certain stretching state or can reach the stretching limit, the available sliding plate is also close to the lower limit of the sliding part or is already at the lower limit of the sliding part, at this time, the body can generate undulation during the running process, the suspension assembly in the prior art can not or fully reduce the additional acting force generated by the load, more preferably, the adjustable elastic assembly 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic assembly 4 is connected with the sliding plate 2, the adjustable elastic assembly can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic assembly is exactly offset with the gravity of the load, and the lower end of the sliding plate and the lower end of the fixed plate are translated or slightly lower than the lower end of the fixed plate while the gravity is offset, namely, the sliding assembly has a larger sliding space, so that the problem that the force output by the adjustable elastic assembly is exactly offset with the gravity of the load but the sliding assembly cannot slide is solved.

The adjustable elastic component 4 comprises a moment component 40 and a moment adjusting component 41, the moment adjusting component comprises a rope 43 connected with the moment component, the fixed plate 1 is provided with a rope locker 44, the other end of the rope 43 is connected with the rope locker, the rope between the moment component and the rope locker forms a U-shaped transition section, the bottom of the U-shaped transition section is provided with a rope passing component 46, the rope passing component is connected with a sliding plate, the adjustable elastic component in the embodiment comprises the moment component and the moment adjusting component, the moment adjusting component comprises the rope locker and the rope passing component, the rope passing component can be a rod piece with a groove, the U-shaped transition section of the rope is matched in the groove of the rod piece and can slide, or the rope passing component is a movable pulley, the rotating shaft of the movable pulley is connected with the sliding plate, the rope is connected with the movable pulley, here, the length of the rope between the rope assembly and the rope locker is adjusted so that the tension of the moment assembly is equal to the weight of the load, and at this time, the rope locker locks the rope, and the rope locker includes a clamping assembly for clamping both sides of the rope and an elastic assembly for providing a clamping force, as shown in fig. 2, the clamping assembly in this embodiment is a clamping plate having teeth on both sides of the rope and a clamping spring for providing a clamping force.

The moment assembly 40 comprises a mandrel 401 fixedly connected to the fixed plate, a spring box 402 connected to the mandrel and capable of rotating, and a scroll spring 403, wherein the scroll spring 403 is wound on the mandrel 401, the inner end of the scroll spring 403 is connected to the mandrel, the outer end of the scroll spring 403 is connected to the inner wall of the spring box 402, and the rope 43 is wound on the surface of the spring box, the moment assembly in the embodiment adopts the scroll spring as an elastic component, the inner coil of the scroll spring is fixedly connected to the mandrel, and the outer end of the scroll spring is driven to rotate by the rope to adjust the magnitude of the output force of the scroll spring, compared with the elastic component in the prior art, the scroll spring has a deformation range far beyond that of a common spring and an elastic rope, and the scroll spring has a longer service life and environmental adaptability,

the fixed plate 1 is further provided with a storage assembly 10 for storing ropes extending out of the rope locking device, and in the adjusting process, for loads with different weights, the lengths of the ropes extending out of the rope locking device are different, the storage assembly can store the ropes, the situation that the end portions of the ropes are not constrained to shake is avoided, the storage assembly can store the ropes without being limited by winding, and a winding shaft, a winding wheel or other similar structures are arranged in a common structural form.

Example 2

As shown in fig. 1 and 4 to 6, the load-reducing suspension system includes a fixed plate 1 and a sliding plate 2, wherein the sliding plate 2 is connected to the fixed plate 1 by a sliding member 3, and is characterized in that: the adjustable elastic component 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic component 4 is connected with the sliding plate 2, the adjustable elastic component can be adjusted according to the load on the sliding plate, the force output by the adjustable elastic component is just counteracted with the gravity of the load, when the load is hung on the movable plate, the movable plate can move downwards under the action of the load, if the sliding plate slides to the lower limit position of the sliding part, the whole load-reducing suspension system is in a failure state, and the load-reducing effect cannot be achieved, at the moment, the embodiment can adjust the adjustable elastic component, the force output by the adjustable elastic component is just counteracted with the gravity of the load, and the sliding plate is positioned at a position capable of sliding up and down on the sliding part, at the moment, during traveling, the body can move up and down, and the fixed plate can move up and down with the body when being carried on the, the sliding plate can slide up and down on the sliding component, so that the amplitude of vertical displacement of the load is reduced, the action on the body of a wearer is reduced, the energy consumption during traveling is reduced, and the load reduction effect is effectively realized.

Adjustable elastic component 4 include adjustable torque component 45, adjustable torque component 45 is including installing rotatable and the adjustable dabber subassembly 450 of locking on the fixed plate, is connected with rotatable spring box 402 on the adjustable dabber subassembly 450, is equipped with the spiral spring 403 that convolutes at the spindle between adjustable dabber subassembly and spring box, spiral spring's one end and dabber are connected, and the other end and the inner wall connection of spring box still include the rope 43 of coiling connection on the spring box surface, and the loose end of rope is connected with sliding plate 2, through the rotation of adjusting adjustable dabber subassembly in this embodiment, realizes the inner regulation to spiral spring, and adjustable dabber subassembly rotates and drives spiral spring and take place elastic deformation to realize the regulation of adjustable torque component's output power.

As shown in fig. 5, the adjustable core shaft assembly 450 includes a fixed shaft 4501 fixedly connected to the fixed plate, a movable shaft 4502 for rotation and locking is disposed on the fixed shaft 4501, one end of a volute spring 403 is connected to the movable shaft 4502, a locking assembly 4503 is further disposed on the fixed shaft, the locking assembly is separated from the movable shaft when the movable shaft needs to rotate, the movable shaft is convenient to rotate, when the movable shaft rotates to a proper position, the locking assembly contacts with the movable shaft, the position of the movable shaft relative to the fixed shaft is locked, the movable shaft can slide along the axis of the fixed shaft by adopting the structural design of the fixed shaft and the movable shaft, the locking assembly is a locking plate sleeved on the fixed shaft and fixedly connected with the fixed plate, a polygonal hole is disposed on the locking plate, a polygon matched with the polygonal hole is disposed at the end of the movable shaft, and a return spring is disposed at the other end of, for convenient regulation, be connected with the adjusting disk on being close to the loose axle of locking plate one end, during the regulation: people act on the adjusting disk through specialized tool, promote the loose axle and remove on the fixed axle, and reset spring is the compression, and here simultaneously, drive adjusting disk rotates, and the loose axle rotates promptly, drives the inner of volute spiral spring and rotates, and the size of the deformation angle of adjustment volute spiral spring realizes the size of the torsion of adjustment moment subassembly's output to can realize carrying out the purpose to moment subassembly regulation according to the size of load.

As shown in fig. 6, the adjustable mandrel assembly 450 includes a mandrel mounting plate 4504 fixedly connected to a fixing plate, a rotatable shaft 4505 is disposed on the mandrel mounting plate 4504, an adjusting end of the shaft 4505 is exposed out of the mandrel mounting plate, an adjusting hole 101 corresponding to the adjusting end is disposed on the fixing plate, a rotation locking assembly 4506 for locking the shaft is disposed on the mandrel mounting plate 4504, a connecting end 4507 is disposed at the other end of the shaft, a spring box 402 is rotatably connected to the connecting end, a single shaft structure is adopted, in order to ensure the stability of the adjustable mandrel assembly, the shaft is fixedly connected to the fixing plate through the mandrel mounting plate, the shaft is connected to the mandrel mounting plate, so that people can adjust the shaft at one side of the fixing plate, and when adjustment is needed, the rotation locking assembly is unlocked, the shaft drives the inner end of the volute spring to rotate, thereby adjusting the magnitude of the torque, when the power of moment subassembly output offsets with the gravity of liability, rotate the locking subassembly and lock the pivot, the rotation locking subassembly including set up on the mounting panel can gliding latch segment, be equipped with in the pivot with latch segment complex locking portion, locking portion can be protruding and sunken cooperation, for example the structure of locking hole and latch segment, perhaps dentate structure again is equipped with the tooth portion on the tip of latch segment and the surface of pivot, latch segment and the epaxial tooth portion meshing of commentaries on classics, other similar structures all can be used to realize the locking of latch segment and pivot.

In summary, the present embodiment designs a force adjusting device that adjusts the force output by the adjustable torque assembly by rotating the adjustable spindle assembly.

Example 3

As shown in fig. 1 and 7, the load reduction suspension system includes a fixed plate 1 and a sliding plate 2, wherein the sliding plate 2 is connected to the fixed plate 1 by a sliding member 3, and is characterized in that: the adjustable elastic component is characterized in that an adjustable elastic component 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic component 4 is connected with the sliding plate 2, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

As further shown in fig. 7, the adjustable elastic assembly 4 includes two symmetrically arranged adjustable torque assemblies 45, the adjustable torque assemblies 45 include an adjustable spindle assembly 450 mounted on the fixed plate for rotation and locking, the adjustable spindle assembly is connected to a rotatable spring box 402, a spiral spring 403 wound on the spindle is disposed between the adjustable spindle assembly 450 and the spring box 402, one end of the spiral spring 403 is connected to the spindle, the other end is connected to the inner wall of the spring box, the rotation directions of the spiral springs of the two adjustable torque assemblies are opposite, the adjustable elastic assembly further includes a rope wound on the surface of the spring box, the movable ends of the two ropes are connected together to form a U-shaped transition section, a rope passing assembly is disposed at the bottom of the U-shaped transition section and connected to the sliding plate, the rope passing assembly is a pulley connected to the movable plate and provided with a bearing, the resistance that produces between rope and the pulley that the bearing that sets up can effectively reduce, the structure of adjustable dabber subassembly adopt the structure of the adjustable dabber subassembly in embodiment 2, no longer specifically expounded in this embodiment, after being equipped with the load on the sliding plate, cross rope subassembly and can follow the downward motion of sliding plate, we need adjustable moment subassembly alone or simultaneously for the power of two adjustable moment subassembly outputs offsets with the gravity of load, and guarantee that the lower extreme of sliding plate is basically parallel and level with the lower extreme of fixed plate, guarantee that the fly leaf has the slip space on sliding part, avoid appearing sliding part and reach the effect that limit influence subtracts the burden.

Example 4

As shown in fig. 1, 8 and 9, the load-reducing suspension system includes a fixed plate 1 and a sliding plate 2, wherein the sliding plate 2 is connected to the fixed plate 1 by a sliding member 3, and is characterized in that: the adjustable elastic component is characterized in that an adjustable elastic component 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic component 4 is connected with the sliding plate 2, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

As shown in fig. 8 and 9, the adjustable elastic assembly includes a torque assembly 40 and a torque adjusting assembly 41, the torque assembly 40 includes a mandrel 401 rotatably connected to the fixing plate and a cylindrical spring case 402, an end of the spring case 402 is fixedly connected to the fixing plate 1, an end of the mandrel 401 extends out of the spring case 402, one end of the mandrel is connected to the fixing plate, the other end of the mandrel is connected to the spring case and extends out of the spring case, bearings are disposed at joints of the mandrel, the fixing plate and the spring case, so as to effectively reduce resistance in the rotation process of the mandrel, the adjustable elastic assembly further includes a spiral spring 403, the spiral spring 403 is wound on the mandrel 401, an inner end of the spiral spring is connected to the mandrel, an outer end of the spiral spring is connected to an inner wall of the spring case 402, here, the spring case is fixedly connected to the fixing plate and is a fixing member, and does not rotate during the operation of the adjustable elastic assembly, in this embodiment The spring box also comprises a wheel-shaped winding drum 404, the center of the winding drum is connected with a mandrel 401 extending out of the spring box, and the winding drum and the mandrel can be connected in a key mode, such as a flat key, a spline and the like, namely the winding drum can drive the mandrel to rotate; the winding drum comprises a spoke connected with the mandrel and a drum body connected with the spoke, as shown in fig. 9, the drum body is sleeved on the spring box, the width of the moment component is reduced, and the miniaturization of the whole load-reducing suspension system is facilitated, the moment adjusting component 41 comprises a rope 43 connected with the moment component, the rope is wound on the surface of the winding drum, a rope locking device 44 is arranged on the fixing plate, the other end of the rope is connected with the rope locking device, the rope between the moment component and the rope locking device forms a U-shaped transition section, a rope passing component 46 is arranged at the bottom of the U-shaped transition section and connected with the sliding plate, the rope passing component of the embodiment comprises two movable pulleys which are symmetrically arranged, the rope sequentially passes through the two movable pulleys and then is connected with the rope locking device, and further, a first pulley for adjusting the rope direction is arranged on one side of the moment component, the two movable pulleys are symmetrically arranged, so that the stress of the sliding plate is more balanced, the sliding plate inclination caused by uneven stress of the sliding plate is avoided, the movement resistance of a sliding part is increased after the sliding plate is inclined, and the factors which are not beneficial to load reduction can be generated.

In the four embodiments, the sliding part 3 is a sliding sleeve and a sliding rod, a sliding block and a sliding rail or a pulley trolley and a sliding rail; while the above description lists several common configurations of sliding members, other configurations of sliding members that are adapted for linear motion may be used herein.

Backpack embodiment

As shown in fig. 10, the backpack includes a fixed plate 1 and a sliding plate 2, the sliding plate 2 is connected to the fixed plate 1 by a sliding member 3, a double shoulder strap and a waist belt 110 for bearing on a human body are provided on the fixed plate 1, and a load receiving member 20 integrally or separately provided with the sliding plate 2, characterized in that: the adjustable elastic component is characterized in that an adjustable elastic component 4 is arranged on the fixed plate 1, the movable end of the adjustable elastic component 4 is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

furthermore, the invention adopts the volute spiral spring as the moment component of the adjustable elastic component, the volute spiral spring has a deformation range far beyond that of a common spring and an elastic rope in the same space, and the volute spiral spring is used as metal and has longer service life and better environmental adaptability than the elastic rope.

Claims

1. The load-reducing suspension system comprises a fixed plate and a sliding plate, wherein the sliding plate is connected to the fixed plate through a sliding part, and the load-reducing suspension system is characterized in that: the adjustable elastic component is arranged on the fixed plate, the movable end of the adjustable elastic component is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.

2. The load reducing suspension system of claim 1, wherein: the adjustable elastic assembly comprises a torque assembly and a torque adjusting assembly, the torque adjusting assembly comprises a rope connected with the torque assembly, a rope locking device is arranged on the fixed plate, the other end of the rope is connected with the rope locking device, the rope between the torque assembly and the rope locking device forms a U-shaped transition section, a rope passing assembly is arranged at the bottom of the U-shaped transition section, and the rope passing assembly is connected with the sliding plate.

3. The load reducing suspension system of claim 2, wherein: the moment subassembly include fixed connection at the dabber on the fixed plate and be connected and rotatable spring box with the dabber, still include a spiral spring, spiral spring's coiling is on the dabber and inner and be connected with the dabber, spiral spring's outer end and spring box's inner wall connection, the rope is coiled on spring box's surface.

4. The load reducing suspension system of claim 1, wherein: the adjustable elastic component comprises a moment component and a moment adjusting component, the moment component comprises a mandrel which is rotationally connected with the fixed plate, the end part of the spring box is fixedly connected to the fixed plate, the end part of the mandrel extends out of the spring box, the spring box also comprises a scroll spring, the scroll spring is wound on the mandrel, the inner end of the scroll spring is connected with the mandrel, the outer end of the scroll spring is connected with the inner wall of the spring box, the spring box also comprises a wheel-shaped winding drum, the center of the winding drum is connected with the mandrel extending out of the spring box, the moment adjusting component comprises a rope connected with the moment component, the fixed plate is provided with a rope locker, the other end of the rope is connected with the rope locker, the rope between the moment component and the rope locking device forms a U-shaped transition section, the bottom of the U-shaped transition section is provided with a rope passing component, and the rope passing component is connected with the sliding plate.

5. The load reducing suspension system of claim 1, wherein: the adjustable elastic assembly comprises an adjustable torque assembly, the adjustable torque assembly comprises an adjustable mandrel assembly which is installed on a fixed plate and can rotate and be locked, a rotatable spring box is connected onto the adjustable mandrel assembly, a volute spiral spring which is wound on a mandrel is arranged between the adjustable mandrel assembly and the spring box, one end of the volute spiral spring is connected with the mandrel, the other end of the volute spiral spring is connected with the inner wall of the spring box, the adjustable elastic assembly further comprises a rope which is wound on the surface of the spring box, and the movable end of the rope is connected with a sliding plate.

6. The load reducing suspension system of claim 1, wherein: the adjustable elastic assembly comprises two symmetrically arranged adjustable torque assemblies, each adjustable torque assembly comprises an adjustable mandrel assembly which is installed on the fixed plate and can rotate and be locked, a rotatable spring box is connected onto each adjustable mandrel assembly, a volute spiral spring wound on the mandrel is arranged between each adjustable mandrel assembly and the corresponding spring box, one end of each volute spiral spring is connected with the mandrel, the other end of each volute spiral spring is connected with the inner wall of the corresponding spring box, the volute spiral springs of the two adjustable torque assemblies are opposite in rotation direction, the adjustable elastic assemblies further comprise ropes wound on the surfaces of the spring boxes, the movable ends of the two ropes are connected together to form a U-shaped transition section, the rope passing assemblies are arranged at the bottom of the U-shaped transition section, and the rope passing assemblies are connected with the sliding plate.

7. A load reducing suspension system according to any one of claims 5 or 6, wherein: adjustable dabber subassembly include fixed axle of fixed connection on the fixed plate, be equipped with the loose axle that rotates and lock on the fixed axle, volute spiral spring's one end is connected on the loose axle, still is equipped with locking Assembly on the fixed axle, locking Assembly breaks away from with the loose axle when the loose axle needs to rotate, and the loose axle of being convenient for is rotatory, when the loose axle is rotatory to suitable position, locking Assembly and loose axle contact lock the position of loose axle for the fixed axle.

8. A load reducing suspension system according to any one of claims 5 or 6, wherein: the adjustable core shaft assembly comprises a core shaft mounting plate fixedly connected to a fixing plate, a rotatable rotating shaft is arranged on the core shaft mounting plate, the adjusting end of the rotating shaft is exposed out of the core shaft mounting plate, an adjusting hole corresponding to the adjusting end is formed in the fixing plate, a rotation locking assembly for locking the rotating shaft is arranged on the core shaft mounting plate, a connecting end is arranged at the other end of the rotating shaft, and the spring box is rotatably connected to the connecting end.

9. The load reducing suspension system of claim 1, wherein: the sliding parts are a sliding sleeve and a sliding rod, a sliding block and a sliding rail or a pulley trolley and a sliding rail.

10. The knapsack, it includes fixed plate and sliding plate, and the sliding plate passes through the sliding part to be connected on the fixed plate, be equipped with the both shoulders area and the waistband of bearing on the back in the human body on the fixed plate, still include the load that sets up with the sliding plate is integrative or the components of a whole that can function independently and hold part, its characterized in that: the adjustable elastic component is arranged on the fixed plate, the movable end of the adjustable elastic component is connected with the sliding plate, and the adjustable elastic component can be adjusted according to the load on the sliding plate, so that the force output by the adjustable elastic component is just offset with the gravity of the load.