A wearable passive assistive device with adjustable force

Abstract

This application relates to the technical field of wearable assistive devices, and particularly to a wearable passive assistive device with adjustable force magnitude. The device includes a backplate, shoulder straps, knee bindings, an elastic energy storage mechanism, and an adjustment mechanism. In particular, the designs of the elastic energy storage mechanism and the adjustment mechanism are such that the elastic energy storage mechanism includes an elastic band; the elastic band is disposed between the backplate and the knee bindings, one end of the elastic band is connected to the knee bindings, and the other end is a movable end, and the movable end passes through the first connecting portion and is slidably engaged with the first connecting portion; the adjustment mechanism includes an adjustment band with adjustable length, one end of the adjustment band is fixedly connected to the shoulder strap, and the other end is fixedly connected to the movable end of the elastic band. This application realizes precise control of the assistive force through the adjustment band with adjustable length, enabling the wearer to adjust the assistive intensity according to actual needs, and improving the flexibility and adaptability of use.

Description

Technical Field

[0001] The present application relates to the technical field of passive assistance devices, and in particular, to a wearable passive assistance device with adjustable force magnitude. Background Art

[0002] In some working scenarios in fields such as logistics warehousing, industrial manufacturing, and military, assistance devices (exoskeletons) have gradually been adopted to reduce user fatigue, reduce user muscle injuries, reduce the occurrence of safety accidents, and improve work efficiency. And compared with active assistance devices, passive assistance devices have been widely used because of their advantages such as low cost, convenient wearing, and flexible use.

[0003] Passive assistance devices usually achieve assistance through an elastic energy storage mechanism. For example, when carrying heavy objects, the elastic energy storage mechanism stores energy through elastic deformation. When lifting the heavy object, the elastic energy storage mechanism can apply elastic potential energy to the heavy object to reduce the load feeling of the laborer, and heavier goods can be carried with less force.

[0004] Although the above-mentioned passive assistance devices can meet the requirements to a certain extent, there are still some deficiencies. Especially in a dynamic environment, such as when frequently changing loads or performing non-assisted actions, the fixed elastic energy storage mechanism is difficult to adjust the force in real time, resulting in unnecessary resistance when assistance is not required. This will not only increase the discomfort of the wearer, but also hinder their normal walking and other activities, thus affecting the overall work efficiency and comfort.

[0005] Therefore, how to design a passive assistance device that can flexibly adjust the assistance magnitude has become an urgent technical problem to be solved. Summary of the Invention

[0006] The present application provides a wearable passive assistance device with adjustable force magnitude, which can flexibly adjust the assistance magnitude, can provide good assistance, and is not easy to interfere with the normal walking of the wearer. The following technical solutions are adopted:

[0007] A wearable passive assistance device with adjustable force magnitude, comprising:

[0008] A backboard, which is vertically arranged; a first connection part is arranged on the backboard;

[0009] A shoulder strap, one end of which is fixedly connected to the upper side of the backboard, and the other end is arranged on the front side of the backboard;

[0010] A knee binding, which is arranged below the backboard;

[0011] Elastic energy storage mechanism, including an elastic band; the elastic band is arranged between the back plate and the knee binding, one end of the elastic band is connected to the knee binding, and the other end is a movable end, and the movable end passes through the first connecting part and is slidably matched with the first connecting part;

[0012] Adjusting mechanism, including an adjusting band with adjustable length, one end of the adjusting band is fixedly connected to the shoulder strap, and the other end is fixedly connected to the movable end of the elastic band.

[0013] By adopting the above technical solutions, the wearable passive power-assisted device capable of adjusting the power magnitude can effectively provide power assistance while avoiding unnecessary resistance to the normal walking of the wearer. Specifically: The back plate serves as the main support structure, ensuring the stability and comfort of the device. The design of the shoulder strap enables the device to be firmly fixed on the user's body, preventing slipping or loosening. The knee binding and the elastic energy storage mechanism work together to store and release energy when needed, reducing the burden on the user. The precise control of the power assistance magnitude is achieved through the adjustable-length adjusting band, enabling the wearer to adjust the power assistance intensity according to actual needs, improving the flexibility and adaptability of use.

[0014] In addition, the shoulder strap, the adjusting band and the elastic energy storage mechanism are interconnected, and the pulling force of the elastic energy storage mechanism will be transmitted to the shoulder strap, which can effectively ensure the stability after adjustment of the elastic energy storage structure, and at the same time can further enhance the stability of the shoulder strap and the back plate.

[0015] Preferably, there are two first connecting parts and they are respectively located on both sides in the width direction of the back plate; a second connecting part is arranged at the center position in the width direction of the back plate; there are two knee bindings and both have third connecting parts;

[0016] The elastic band is arranged in a W shape, and both ends of the elastic band are movable ends; the elastic band also has an upper inflection point and two lower inflection points between the two movable ends; the upper inflection point is slidably connected to the second connecting part; the two lower inflection points respectively correspond to the two third connecting parts and are slidably connected to the third connecting parts;

[0017] There are two groups of the adjusting mechanisms and they are respectively located on both sides in the width direction of the back plate and are correspondingly connected to the two movable ends.

[0018] By adopting the above technical solutions, the device can more precisely adjust the power magnitude of the elastic energy storage mechanism, enabling the wearer to obtain the best power assistance effect under different working conditions. Specifically:

[0019] Two first connection parts, one second connection part and corresponding knee bindings are provided, such that the elastic band can be arranged in a W shape. This layout not only increases the effective stroke of the elastic band, but also better disperses the acting points of force, ensuring a uniformly distributed assisting effect. The upper inflection point is slidably connected to the second connection part, while the two lower inflection points are respectively slidably connected to the third connection part. Such a design can make the elastic band stretch or contract more smoothly, avoiding the discomfort caused by sudden force. The adjusting mechanism is arranged in two groups and is respectively located on both sides in the width direction of the back plate, and is connected to the two movable ends in one-to-one correspondence, further improving the adjusting accuracy, enabling the wearer to finely adjust the assisting force of each part according to actual needs, so as to achieve the optimal usage experience.

[0020] Preferably, the adjusting band is obliquely arranged, and the end of the adjusting band connected to the shoulder strap is located above the other end.

[0021] By adopting the above technical solution, the adjusting band is obliquely arranged, and the end connected to the shoulder strap is located above the other end, enabling the adjusting band to remain stable in different postures and avoiding the adjustment failure caused by posture changes. At the same time, this layout helps to disperse the stress points, reduce local pressure and improve the wearing comfort. In addition, the oblique arrangement can better adapt to the ergonomic design and further enhance the user's operation experience.

[0022] Preferably, it further includes a waist binding, and the waist binding includes a front waistband and a rear waistband. The rear waistband is arranged at the lower part of the back plate and is fixedly connected to the back plate; the front waistband is detachably connected to the rear waistband; the length of the front waistband is adjustable.

[0023] By adopting the above technical solution, the design of the waist binding enables the wearer to better adapt to different body type requirements, improving the applicability and comfort of the device. The detachable connection design of the front waistband and the rear waistband facilitates the wearing and taking-off process, and also increases the flexibility of the structure. The adjustable length setting of the front waistband further enhances the possibility of personalized adjustment, ensuring the stability and comfort of the wearer during various activities.

[0024] Preferably, a ventral strap is further connected to the back plate, one end of the ventral strap is fixedly connected to the upper part of the back plate, and the other end is connected to the front waistband.

[0025] By adopting the above technical solution, the ventral strap is connected to the back plate and the front waistband, which can effectively enhance the overall stability of the device, prevent the slippage or displacement phenomenon caused by uneven force during the assisting process, and ensure that the wearer is safer and more reliable during the handling operation. In addition, the design of the ventral strap can also disperse part of the waist pressure, relieve the discomfort caused by long-term wearing, and further improve the user experience.

[0026] Preferably, the adjusting mechanism further includes a guard plate. One end of the guard plate is fixedly connected to the back plate, and the other end extends to the front side of the back plate. The adjusting belt is attached to the guard plate; the guard plate is arc-shaped to fit the human body.

[0027] By adopting the above technical solution, the design of the guard plate makes the adjusting belt closer to the human body curve, reduces the discomfort during wearing, and improves the comfort. At the same time, the presence of the guard plate can effectively prevent the adjusting belt from shifting or falling off during movement, ensuring the stability and reliability of the adjusting mechanism, and further improving the overall performance and user experience of the device.

[0028] Preferably, the ventral strap is arranged crosswise with the adjusting belt, and through holes for the ventral strap to pass through are arranged on the guard plate.

[0029] By adopting the above technical solution, the crosswise arrangement of the ventral strap and the adjusting belt can effectively disperse the forces received by various parts of the wearer's body, avoiding discomfort or injury caused by excessive local force. At the same time, the through hole design on the guard plate ensures the smooth passing of the ventral strap, thereby realizing the fixation of the ventral strap, improving the stability of the ventral strap, reducing the offset during work, reducing friction and restraint, and improving comfort and flexibility.

[0030] Preferably, a shoulder support plate is arranged above the back plate. The shoulder support plate is vertically slidably connected to the back plate and is detachably arranged;

[0031] A load-bearing belt is further arranged on the shoulder support plate, and a hook for hooking goods is connected to the load-bearing belt.

[0032] By adopting the above technical solution, the shoulder support plate is vertically slidably connected to the back plate and is detachably arranged, enabling the user to adjust the height of the shoulder support plate according to their own needs, improving comfort and applicability. At the same time, the load-bearing belt and its hook design on the shoulder support plate can conveniently hook goods, reducing the burden on the user when carrying heavy objects, and further improving the practicality and assisting effect of the device.

[0033] Preferably, the load-bearing belt includes a base belt and an additional belt. The base belt is elastic and fixedly connected to the shoulder support plate. The additional belt is a non-elastic belt and is folded. A plurality of connection points are arranged at intervals on the additional belt, and the additional belt is fixedly connected to the base belt through the connection points.

[0034] By adopting the above technical solution, when the hand hook is not bearing load, the base belt is in a relaxed state and the additional belt is in a folded and wrinkled state. When the force borne by the hand hook gradually increases, the base belt is gradually tightened and stretched accordingly, and the additional belt is also stretched. At this time, the force acting on the hand hook is mainly transmitted from the base belt to the shoulder support plate. When the force borne by the hand hook increases to the point where the additional belt is fully stretched, the overall length of the load-bearing belt will no longer be stretched, and the force transmitted by the base belt reaches the maximum value. After that, when the force borne by the hand hook increases further, the force transmitted by the base belt remains F1, while the force transmitted by the additional belt gradually increases. Therefore, this structure can provide assistance to the wearer when lifting heavy objects, and improve the durability and reliability of this type of structure.

[0035] In summary, the present invention includes at least one of the following beneficial technical effects:

[0036] 1. By providing an adjustable-length adjustment belt, the tension of the elastic energy storage mechanism can be flexibly adjusted, so as to provide an appropriate amount of assistance under different load conditions, effectively solving the problem that the existing passive assistive devices cannot flexibly adjust the amount of assistance.

[0037] 2. The adjustment belt is connected to the movable ends of the shoulder strap and the elastic belt, enabling the wearer to quickly adapt to different working environments by simply adjusting the belt, improving the flexibility and convenience of use, reducing unnecessary resistance, and avoiding interference with normal walking.

[0038] 3. The elastic belt is arranged in a W shape and is connected to the back plate and the knee binding through multiple sliding connection points, ensuring stability and reliability under various posture changes, and further improving the uniform distribution of the assistance effect and the wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a rear schematic view of the passive assistive device in the embodiment of the present application;

[0040] Figure 2 is a front schematic view of the passive assistive device in the embodiment of the present application;

[0041] Figure 3 is a structural schematic view of the back plate and the shoulder support plate in the embodiment of the present application.

[0042] Reference numerals in the drawings: 1, back panel; 11, first connecting portion; 12, second connecting portion; 13, shoulder support plate; 14, load-bearing strap; 141, basic strap; 142, additional strap; 15, fastener; 16, hand hook; 2, shoulder strap; 3, knee binding; 31, third connecting portion; 4, elastic energy storage mechanism; 41, elastic band; 411, movable end; 412, upper inflection point; 413, lower inflection point; 5, adjustment mechanism; 51, adjustment strap; 6, waist binding; 61, front waistband; 62, rear waistband; 7, ventral strap. Detailed implementation manners

[0043] The following further Figure 1 - attached Figure 3 describes the present invention in detail with reference to the attached drawings.

[0044] The wearable passive power-assisted device provided by the embodiment of the present application can flexibly adjust the magnitude of the power assistance during use, and avoid unnecessary resistance to the wearer during non-power-assisted actions such as walking.

[0045] Specifically, the passive power-assisted device includes a back panel 1, a shoulder strap 2, a waist binding 6, a knee binding 3, an elastic energy storage mechanism 4, and an adjustment mechanism 5. Among them, the back panel 1 is made of a rigid elastic material and is designed according to ergonomics to fit the human back. The back panel 1 is vertically arranged, the shoulder strap 2 is arranged at the upper position of the back panel 1 and is fixedly connected to the back panel 1, and the waist binding 6 is arranged at the lower position of the back panel 1 and is fixedly connected to the back panel 1. The wearer can fix the back panel 1 on the back through the shoulder strap 2 and the waist binding 6.

[0046] The knee binding 3 can be directly bound to the knees of the user. The elastic energy storage mechanism 4 is mainly composed of an elastic band 41. The elastic band 41 is arranged between the knee binding 3 and the back panel 1 and can connect the back panel 1 and the knee binding 3, so as to provide a rebound power assistance when the user performs bending and other lifting actions. The adjustment mechanism 5 is arranged between the shoulder strap 2 and the back panel 1 and can adjust the length of the elastic band 41 between the back panel 1 and the knee binding 3, so as to flexibly adjust the power assistance intensity of the elastic band 41.

[0047] Specifically, in order to realize the connection between the back panel 1 and the knee binding 3; a first connecting portion 11 and a second connecting portion 12 are arranged at the lower position of the back panel 1. There are two first connecting portions 11 and they are respectively located on both sides in the width direction of the back panel 1, while the second connecting portion 12 is arranged at the center position in the width direction of the back panel 1. There are two knee bindings 3, corresponding to the two knees of the wearer. Both of the two knee bindings 3 have a third connecting portion 31.

[0048] In the present application, both the first connecting portion 11 and the second connecting portion 12 are annular, and the second connecting portion 12 is arranged in a hook shape. The elastic band 41 is arranged in a W shape, having an upper inflection point 412, two lower inflection points 413 and two ends. Both ends are movable ends 411 and are inserted into the first connecting portion 11. The upper inflection point 412 is hung on the second connecting portion 12, and the two lower inflection points 413 are inserted into the third connecting portion 31. Thus, the connection between the two knee bindings 3 and the back plate 1 is realized. And due to the arrangement of the whole elastic band 41, the two knee bindings 3 can be interlocked with each other, so as to automatically balance the force provided to the two legs, ensure that the pulling forces on both sides are always the same, and improve the balance of the assistance. Avoid accidental situations such as the wearer falling due to unbalanced assistance.

[0049] Further, in order to realize the adjustment of the length of the elastic band 41 between the back plate 1 and the knee binding 3, the adjusting mechanism 5 includes an adjusting band 51 with adjustable length. One end of the adjusting band 51 is fixedly connected to the shoulder strap 2, and the other end is fixedly connected to the movable end 411 of the elastic band 41. By adjusting the length of the adjusting band 51, the movable end 411 is pulled to move, and further the tension of the elastic band 41 is adjusted, so that the wearer can flexibly adjust the assistance strength of the elastic band 41.

[0050] The adjusting band 51 can be connected to the shoulder strap 2 through a D-ring to realize the adjustment of the length of the adjusting band 51. In addition, the adjusting end of the adjusting band 51 is arranged at the shoulder strap 2. Therefore, when worn, the adjusting end of the adjusting band 51 is located at the front of the wearer, which is convenient for the wearer to operate.

[0051] The waist binding 6 includes a front waistband 61 and a rear waistband 62. The rear waistband 62 is arranged at the lower part of the back plate 1 and is fixedly connected to the back plate 1. The front waistband 61 is detachably connected to the rear waistband 62, and the front waistband 61 is arranged with adjustable length.

[0052] Specifically, the front waistband 61 and the rear waistband 62 can adopt the same material and structure, that is, a wide-width nylon webbing, with a soft breathable material covering the surface. The front end of the front waistband 61 can be connected to the rear waistband 62 by means of Velcro or buckles, etc., which is convenient for wearing and adjustment. A soft pad can be embedded inside the front waistband 61 to increase comfort and support. The length of the front waistband 61 can be adjusted according to the body types of different users to ensure firmness without pressing the skin.

[0053] This embodiment is applicable to working scenarios that require greater assistive support, such as carrying heavy objects, lifting heavy equipment, etc. By adjusting the variation of the adjustment belt 51, the tension of the elastic belt 41 can be flexibly adjusted, thereby controlling the magnitude of the assistive force. When greater assistive force is needed, the adjustment belt 51 is tightened to make the elastic belt 41 in a more tense state to generate the assistive force; conversely, when walking normally or when less assistive force is needed, the adjustment mechanism 5 is released to extend the length of the adjustment belt 51 and relax the elastic belt 41. This design can not only provide efficient assistive support but also reduce unnecessary resistance during non-assistive actions, improving the comfort and work efficiency of the wearer.

[0054] This application further adds a ventral strap 7. One end of the ventral strap 7 is fixedly connected to the upper position of the back plate 1, and the other end is connected to the front waistband 61. The design of the ventral strap 7 strengthens the support of the abdomen and improves the overall stability of the device. One end of the ventral strap 7 is fixedly connected to the upper position of the back plate 1, and the other end is connected to the front waistband 61. The ventral strap 7 can be made of a material with good elasticity, such as elastic cotton cloth or elastic mesh cloth, which can provide the necessary support without excessive restraint.

[0055] Furthermore, the ventral strap 7 and the adjustment belt 51 are arranged in a cross pattern, which can form a stable triangular structure to enhance the overall stability.

[0056] This application further adds a guard plate. One end of the guard plate is fixedly connected to the back plate 1, and the other end extends to the front side of the back plate 1. The adjustment belt 51 is attached to the guard plate, and the guard plate is arc-shaped to fit the human body. The ventral strap and the adjustment belt 51 are arranged in a cross pattern, and through holes for the ventral strap to pass through are provided on the guard plate.

[0057] Specifically, the guard plate can be made of a light and high-strength material, such as polycarbonate or ABS plastic, with a smooth surface and certain flexibility. A soft cushion can be covered on the inner side of the guard plate to increase comfort. The arc-shaped design of the guard plate makes it fit naturally with the human chest cavity, reducing friction and indentations. Through holes for the ventral strap to pass through are provided on the guard plate, and the through holes can be circular or oval with smooth edges. The guard plate can effectively prevent the adjustment belt 51 from shifting or falling off during use, ensuring the stability and reliability of the adjustment mechanism 5, and further improving the overall performance and user experience of the device.

[0058] The wearable passive assistive device with adjustable force provided by the embodiments of the present application further includes a shoulder support plate 13 and a load-bearing belt 14. The shoulder support plate 13 is disposed above the back plate 1 and is vertically slidably connected to the back plate 1 to adjust the height of the shoulder support plate 13, so as to adapt to users of different heights. The shoulder support plate 13 is located above the shoulder strap 2. Specifically, during use, the shoulder support plate 13 does not contact the wearer's shoulders, so that the pressure is transmitted to the wearer's waist and back through the back plate 1, reducing the pressure and discomfort on the shoulders when wearing the device.

[0059] In addition, the bottom of the shoulder support plate 13 is connected to the back plate 1 through a threaded fastener 15, realizing the detachable of the shoulder support plate 13. When the shoulder support plate 13 is disassembled, the device can be used alone as a waist assistive exoskeleton.

[0060] The load-bearing belt 14 is divided into two parts: a base belt 141 and an additional belt 142. The base belt 141 is elastic and fixedly connected to the shoulder support plate 13. The additional belt 142 is a non-elastic belt 41 and is folded. The folded part of the additional belt 142 is fixedly connected to the base belt 141. A hook 16 is also connected to the base belt 141, and the hook 16 is used for hanging heavy objects.

[0061] When the hook 16 is not bearing force, the base belt 141 is in a relaxed state, and the additional belt 142 is in a folded and wrinkled state. When the force borne by the hook 16 gradually increases, the base belt 141 is gradually tightened and stretched accordingly, and the additional belt 142 is also stretched. At this time, the force acting on the hook 16 is mainly transmitted from the base belt 141 to the shoulder support plate 13. When the force borne by the hook 16 increases to the point where the additional belt 142 is fully stretched, the overall length of the load-bearing belt 14 will no longer be stretched at this time, and the force transmitted by the base belt 141 reaches the maximum value. After that, when the force borne by the hook 16 increases further, the force transmitted by the base belt 141 remains unchanged, while the force transmitted by the additional belt 142 gradually increases. Therefore, this structure can provide assistance to the wearer when lifting heavy objects and improve the durability and reliability of this type of structure.

[0062] In summary, the wearable passive assistive device with adjustable force provided by the present embodiment is applicable to scenarios that require large load-bearing capacity and flexibility, such as handling large goods, field exploration, etc. By adding the shoulder support plate 13 and the load-bearing belt 14, the load-bearing capacity and use flexibility of the device can be significantly improved.

[0063] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A wearable passive assistive device with adjustable force magnitude, characterized in that, Comprising: A backplate (1), the backplate (1) being vertically arranged; a first connecting portion (11) is provided on the backplate (1); A shoulder strap (2), one end fixedly connected to the upper side of the backplate (1), and the other end arranged on the front side of the backplate (1); A knee strap (3), arranged below the backplate (1); An elastic energy storage mechanism (4), including an elastic band (41); the elastic band (41) is arranged between the backplate (1) and the knee strap (3), one end of the elastic band (41) is connected to the knee strap (3), and the other end is a movable end (411), and the movable end (411) passes through the first connecting portion (11) and is in sliding fit with the first connecting portion (11); An adjusting mechanism (5), including an adjusting band (51) with adjustable length, one end of the adjusting band (51) is fixedly connected to the end of the shoulder strap (2) located on the front side of the backplate (1), and the other end is fixedly connected to the movable end (411) of the elastic band (41); There are two first connecting portions (11) and they are respectively located on both sides in the width direction of the backplate (1); a second connecting portion (12) is arranged at the center position in the width direction of the backplate (1); there are two knee straps (3) and both have a third connecting portion (31); The elastic band (41) is arranged in a W shape, and both ends of the elastic band (41) are movable ends (411); the elastic band (41) also has an upper inflection point (412) located between the two movable ends (411) and two lower inflection points (413); the upper inflection point (412) is in sliding connection with the second connecting portion (12); the two lower inflection points (413) respectively correspond to the two third connecting portions (31) one by one and are in sliding connection with the third connecting portion (31); There are two groups of the adjusting mechanisms (5) and they are respectively located on both sides in the width direction of the backplate (1), and are connected to the two movable ends (411) one by one.

2. The wearable passive assistive device with adjustable force magnitude according to claim 1, wherein The adjusting band (51) is obliquely arranged, and the end of the adjusting band (51) connected to the shoulder strap (2) is above the other end.

3. The wearable passive power-assisted device with adjustable force magnitude according to claim 1, wherein It further includes a waist strap (6), the waist strap (6) includes a front waistband (61) and a rear waistband (62), the rear waistband (62) is arranged at the lower position of the backplate (1) and is fixedly connected to the backplate (1); the front waistband (61) is detachably connected to the rear waistband (62); the front waistband (61) is arranged with adjustable length.

4. The wearable passive assistive device with adjustable force according to claim 3, wherein A ventral strap (7) is further connected to the backplate (1), one end of the ventral strap (7) is fixedly connected to the upper position of the backplate (1), and the other end is connected to the front waistband (61).

5. The wearable passive assistive device with adjustable force magnitude according to claim 4, wherein The adjusting mechanism (5) further includes a guard plate, one end of the guard plate is fixedly connected to the backplate (1), and the other end extends to the front side of the backplate (1), and the adjusting band (51) is attached to the guard plate; the guard plate is arranged in an arc shape to fit the human body.

6. The wearable passive assistive device with adjustable force magnitude according to claim 5, characterized in that, The ventral strap (7) and the adjusting band (51) are arranged in a cross manner, and a through hole for the ventral strap (7) to pass through is arranged on the guard plate.

7. The wearable passive assistive device with adjustable force according to claim 1, wherein A shoulder support plate (13) is arranged above the backplate (1), the shoulder support plate (13) is in vertical sliding connection with the backplate (1) and is detachably arranged; A load-bearing belt (14) is further provided on the shoulder support plate (13), and a hand hook is connected to the load-bearing belt (14) for hooking goods.

8. The wearable passive assistive device with adjustable force according to claim 7, characterized in that, The load-bearing belt (14) includes a base belt (141) and an additional belt (142). The base belt (141) is elastic and fixedly connected to the shoulder support plate (13). The additional belt (142) is a non-elastic belt (41) and is arranged in a folded manner, and the folded part of the additional belt (142) is fixedly connected to the base belt (141).

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