Assistive device

Abstract

The application discloses a power assisting device, which comprises a thigh supporting plate, a calf supporting plate, a connecting assembly, and a first energy storage assembly. The connecting assembly comprises a first connecting piece and a second connecting piece. The first end of the first connecting piece is rotationally connected with the thigh supporting plate. The second end of the first connecting piece is rotationally connected with the first end of the second connecting piece through a rotating shaft. The second end of the second connecting piece is rotationally connected with the calf supporting plate. The first energy storage assembly comprises a first elastic piece, a push rod, and a sliding rod. The sliding rod is slidably arranged on the second connecting piece. The first end of the push rod is rotationally connected with the first connecting piece. The second end of the push rod is connected with the sliding rod. The first end of the first elastic piece is connected with the rotating shaft. The second end of the first elastic piece is connected with the sliding rod. When a user switches from a squatting state to a standing state, the first elastic piece releases energy. The first elastic piece pulls the sliding rod to move towards the rotating shaft, so that the included angle between the first connecting piece and the second connecting piece is increased, thereby assisting the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motion assisting apparatuses, in particular to a power assisting device. BACKGROUND

[0002] Old people are prone to suffer from arthritis and muscle degradation due to aging of the body. In the daily life of the old people, it is easier to squat, but it is more difficult to stand up after squatting. Meanwhile, many young and middle-aged people suffer from knee joint related diseases due to modern living habits, eating habits, work influence and other reasons, resulting in weak knee joints and difficulty in standing up after squatting in daily life.

[0003] In the related art, for example, the patent with the announcement number CN206044936U needs to use a gas pressure rod and other components to realize power assistance, so that the user can more conveniently switch from a sitting position to a standing position, the structure is relatively complex, and it is not conducive to deep squatting of the user. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a power assisting device with a simple structure.

[0005] The power assisting device according to some embodiments of the present application comprises: a thigh supporting plate; a calf supporting plate; a connecting assembly, the connecting assembly comprising a first connecting piece and a second connecting piece, a first end of the first connecting piece being rotationally connected with the thigh supporting plate, a second end of the first connecting piece being rotationally connected with a first end of the second connecting piece through a rotating shaft, a second end of the second connecting piece being rotationally connected with the calf supporting plate; and a first energy storage assembly, the first energy storage assembly comprising a first elastic piece, a push rod and a sliding rod, the sliding rod being slidably arranged on the second connecting piece, a first end of the push rod being rotationally connected with the first connecting piece, a second end of the push rod being connected with the sliding rod, a first end of the first elastic piece being connected with the rotating shaft, and a second end of the first elastic piece being connected with the sliding rod.

[0006] The power assisting device according to the embodiments of the present application has at least the following beneficial effects:

[0007] The above-mentioned power assisting device, the thigh supporting plate is used for being bound to the back side of the thigh of the user, the calf supporting plate is used for being bound to the back side of the calf of the user, the first connecting piece is used for connecting the thigh supporting plate and the second connecting piece, the second connecting piece is used for connecting the first connecting piece and the calf supporting plate, and the first connecting piece and the second connecting piece are rotationally connected, so that the user can switch between the standing state and the squatting state. In addition, the thigh supporting plate is rotationally connected with the first connecting piece, the thigh supporting plate has the rotational freedom, and can adaptively change along with the position of the thigh. The calf supporting plate is rotationally connected with the second connecting piece, and the calf supporting plate also has the rotational freedom, and can adaptively change along with the position of the calf. In this way, the comfort of the user can be improved, and the calf supporting plate and the thigh supporting plate are prevented from being stuck. When the user switches from the standing state to the squatting state, the included angle between the first connecting piece and the second connecting piece gradually decreases. At this time, the push rod pushes the sliding rod to move on the calf supporting plate away from the rotation shaft. In this way, the sliding rod stretches the first elastic piece, so that the first elastic piece stores energy. When the user switches from the squatting state to the standing state, the first elastic piece releases the energy, and the first elastic piece pulls the sliding rod to move on the calf supporting plate towards the rotation shaft, so that the included angle between the first connecting piece and the second connecting piece is increased, thereby assisting the user to switch from the squatting state to the standing state more easily.

[0008] According to some embodiments of the present application, the second connecting piece is provided with two first sliding grooves extending in the direction from the first end of the second connecting piece to the second end of the second connecting piece, and the two first sliding grooves are arranged side by side and spaced apart, and the two ends of the sliding rod are respectively slidably arranged in the two first sliding grooves.

[0009] According to some embodiments of the present application, the power assisting device further comprises a second energy storage assembly, the first end of the first connecting piece is further slidably connected with the thigh supporting plate, and the two ends of the second energy storage assembly are respectively connected with the thigh supporting plate and the first connecting piece.

[0010] According to some embodiments of the present application, the second energy storage assembly comprises two second elastic pieces, the first end of the first connecting piece is provided with two first mounting shafts, and the two first mounting shafts are respectively arranged on the two sides of the first end of the first connecting piece, the thigh supporting plate is provided with two second sliding grooves extending in the height direction of the thigh supporting plate, and the two second sliding grooves are arranged side by side and spaced apart, and the two first mounting shafts are respectively arranged in the two second sliding grooves, wherein the two ends of one of the second elastic pieces are respectively connected with one of the first mounting shafts and the thigh supporting plate, and the two ends of the other second elastic piece are respectively connected with the other first mounting shaft and the thigh supporting plate.

[0011] According to some embodiments of the present application, among the two second elastic members, one is a second elastic member a and the other is a second elastic member b; among the two first mounting shafts, one is a first mounting shaft a and the other is a first mounting shaft b.

[0012] The thigh supporting plate is provided with two first fixing shafts, one of which is a first fixing shaft a and the other is a first fixing shaft b, the first fixing shaft a is below the first mounting shaft a, the first fixing shaft b is below the first mounting shaft b, the two ends of the second elastic member a are connected with the first fixing shaft a and the first mounting shaft a respectively, and the two ends of the second elastic member b are connected with the first fixing shaft b and the first mounting shaft b respectively.

[0013] According to some embodiments of the present application, the two first mounting shafts are each provided with a first bearing, and the first bearings on the two first mounting shafts are arranged in the two second sliding grooves respectively.

[0014] According to some embodiments of the present application, the power assisting device further comprises a third energy storage assembly, the second end of the second connecting member is in sliding fit with the calf supporting plate, and the two ends of the third energy storage assembly are connected with the calf supporting plate and the second connecting member respectively.

[0015] According to some embodiments of the present application, the third energy storage assembly comprises two third elastic members, the second end of the second connecting member is provided with two second mounting shafts, and the two second mounting shafts are arranged on the two sides of the second end of the second connecting member respectively, the calf supporting plate is provided with two third sliding grooves, the third sliding grooves extend along the height direction of the calf supporting plate, and the two third sliding grooves are arranged side by side and spaced apart, the two second mounting shafts are arranged in the two third sliding grooves respectively, the two ends of one of the third elastic members are connected with one of the second mounting shafts and the calf supporting plate respectively, and the two ends of the other third elastic member are connected with the other second mounting shaft and the calf supporting plate respectively.

[0016] According to some embodiments of the present application, among the two third elastic members, one is a third elastic member a and the other is a third elastic member b; among the two second mounting shafts, one is a second mounting shaft a and the other is a second mounting shaft b.

[0017] The calf supporting plate is provided with two second fixing shafts, one of which is a second fixing shaft a, and the other is a second fixing shaft b, the second fixing shaft a is above the second mounting shaft a, the second fixing shaft b is above the second mounting shaft b, two ends of the third elastic member a are connected with the second fixing shaft a and the second mounting shaft a respectively, and two ends of the third elastic member b are connected with the second fixing shaft b and the second mounting shaft b respectively.

[0018] According to some embodiments of the present application, the two second mounting shafts are provided with second bearings respectively, and the second bearings of the two second mounting shafts are arranged in the two third sliding grooves respectively.

[0019] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 Structure diagram of the power assisting device of one embodiment of the present application Figure 1 ;

[0022] Figure 2 Structure diagram of the power assisting device of one embodiment of the present application Figure 2 ;

[0023] Figure 3 Structure diagram of the power assisting device of one embodiment of the present application Figure 2 ;

[0024] Figure 4 Structure diagram of the power assisting device of one embodiment of the present application Figure 3 ;

[0025] Figure 5 Structure diagram of the power assisting device of one embodiment of the present application

[0026] Figure 6 Structure diagram of the power assisting device of one embodiment of the present application Figure 5 ; Figure 1 ;

[0027] Figure 7 Structure diagram of the power assisting device of one embodiment of the present application Figure 5 ; Figure 2 .

[0028] LIST OF REFERENCE NUMBERS

[0029] 100, thigh supporting plate; 110, second sliding groove; 120, first binding opening;

[0030] 200 calf plate; 210 third sliding slot; 220 second bundling port;

[0031] 300 connecting assembly; 310 first connecting piece; 311 first mounting shaft; 320 second connecting piece; 321 first sliding slot; 322 second mounting shaft;

[0032] 400 first energy storage assembly; 410 first elastic member; 420 push rod; 421 bending section; 430 sliding rod;

[0033] 500 rotating shaft;

[0034] 600 second elastic member; 610 first fixing shaft; 620 first bearing;

[0035] 700 third elastic member; 710 second fixing shaft; 720 second bearing. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals and characters indicate the same or similar components throughout the drawings. The embodiments described below are exemplary, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0037] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] As shown in Figure 1 , Figure 2 , an embodiment of the present application relates to a kind of power assisting device, including thigh support plate 100, shank support plate 200, connecting assembly 300 and first energy storage component 400.Therein, thigh support plate 100 is used to be tied on the thigh of user, shank support plate 200 is used to be tied on the shank of user, connecting assembly 300 is used to connect thigh support plate 100 and shank support plate 200, first energy storage component 400 is used to store energy when user squats, to assist user when user stands up.

[0040] As shown in Figure 2 , Figure 3 , connecting assembly 300 includes first connecting piece 310 and second connecting piece 320, the first end of first connecting piece 310 is rotatably connected with thigh support plate 100, the second end of first connecting piece 310 is rotatably connected with the first end of second connecting piece 320 through rotating shaft 500, the second end of second connecting piece 320 is rotatably connected with shank support plate 200.

[0041] Specifically, thigh support plate 100 is used to be tied on the back side of the thigh of user, shank support plate 200 is used to be tied on the back side of the shank of user, first connecting piece 310 is used to connect thigh support plate 100 and second connecting piece 320, second connecting piece 320 is used to connect first connecting piece 310 and shank support plate 200, and first connecting piece 310 and second connecting piece 320 are rotatably connected, can meet the user switches between standing state and squatting state.In addition, thigh support plate 100 is rotatably connected with first connecting piece 310, thigh support plate 100 has the freedom of rotation, can adaptively change along with the position of thigh, shank support plate 200 is rotatably connected with second connecting piece 320, shank support plate 200 also has the freedom of rotation, can adaptively change along with the position of shank, thus, the comfort of user can be improved, avoid shank support plate 200 and thigh support plate 100 to card foot.

[0042] Wherein, first connecting piece 310 and / or second connecting piece 320 can be plate-shaped member, can also be rod-shaped member.

[0043] Further, the first connecting piece 310 is provided with a first shaft hole, the second connecting piece 320 is provided with a second shaft hole, and the rotating shaft 500 is arranged in the first shaft hole and the second shaft hole, so that the first connecting piece 310 and the second connecting piece 320 are rotationally connected.

[0044] The first energy storage assembly 400 comprises a first elastic member 410, a push rod 420, and a sliding rod 430. The sliding rod 430 is slidably arranged on the second connecting piece 320. The first end of the push rod 420 is rotationally connected with the first connecting piece 310, and the second end of the push rod 420 is connected with the sliding rod 430. The first end of the first elastic member 410 is connected with the rotating shaft 500, and the second end of the first elastic member 410 is connected with the sliding rod 430.

[0045] As shown in Figures 1 to 4 When the user switches from the standing state to the squatting state, the angle between the first connecting piece 310 and the second connecting piece 320 gradually decreases. At this time, the push rod 420 pushes the sliding rod 430 to move on the calf supporting plate 200 away from the rotating shaft 500. In this way, the sliding rod 430 stretches the first elastic member 410, so that the first elastic member 410 stores energy. When the user switches from the squatting state to the standing state, the first elastic member 410 releases energy, and the first elastic member 410 pulls the sliding rod 430 to move on the calf supporting plate 200 towards the rotating shaft 500, so as to increase the angle between the first connecting piece 310 and the second connecting piece 320, thereby providing power assistance, so that the user can more easily switch from the squatting state to the standing state.

[0046] The thigh supporting plate 100 is used to be bound on the back side of the thigh of the user, the calf supporting plate 200 is used to be bound on the back side of the calf of the user, the first connecting piece 310 is used to connect the thigh supporting plate 100 and the second connecting piece 320, the second connecting piece 320 is used to connect the first connecting piece 310 and the calf supporting plate 200, and the first connecting piece 310 and the second connecting piece 320 are rotationally connected, so as to meet the switching between the standing state and the squatting state of the user. In addition, the thigh supporting plate 100 is rotationally connected with the first connecting piece 310, the thigh supporting plate 100 has the freedom of rotation and can adaptively change with the position of the thigh, the calf supporting plate 200 is rotationally connected with the second connecting piece 320, and the calf supporting plate 200 also has the freedom of rotation and can adaptively change with the position of the calf, so as to improve the comfort of the user and avoid the calf supporting plate 200 and the thigh supporting plate 100 from being stuck on the leg. When the user switches from the standing state to the squatting state, the included angle between the first connecting piece 310 and the second connecting piece 320 gradually decreases, at this time, the push rod 420 pushes the sliding rod 430 to move on the calf supporting plate 200 away from the rotation shaft 500, so that the sliding rod 430 stretches the first elastic piece 410, so that the first elastic piece 410 stores energy. When the user switches from the squatting state to the standing state, the first elastic piece 410 releases energy, the first elastic piece 410 pulls the sliding rod 430 to move on the calf supporting plate 200 towards the rotation shaft 500, so as to make the included angle between the first connecting piece 310 and the second connecting piece 320 larger, thereby providing assistance, so that the user can switch from the squatting state to the standing state more easily.

[0047] It should be noted that the first elastic piece 410 is a spring.

[0048] Further, the connecting assembly 300 includes a near leg side close to the leg of the user and a back leg side opposite to the near leg side, the first energy storage assembly 400 is arranged on the back leg side of the connecting assembly 300, so as to avoid the first energy storage assembly 400 from interfering with the leg of the user, and when the included angle between the first connecting piece 310 and the second connecting piece 320 decreases, the push rod 420 can smoothly push the sliding rod 430.

[0049] In one embodiment, the thigh supporting plate 100 is provided with a first binding opening 120, and a first binding belt can pass through the first binding opening 120 to bind the thigh supporting plate 100 on the thigh of the user. The calf supporting plate 200 is provided with a second binding opening 220, and a second binding belt can pass through the second binding opening 220 to bind the calf supporting plate 200 on the calf of the user.

[0050] Further, the thigh supporting plate 100 and the calf supporting plate 200 are both provided with sensors for detecting physiological data of the user.

[0051] As Figure 2 ,Figure 3 As shown in the drawings, in one embodiment, the second connecting member 320 is provided with two first sliding grooves 321 extending along the direction from the first end of the second connecting member 320 to the second end of the second connecting member 320, and the two first sliding grooves 321 are arranged side by side and spaced apart, and the two ends of the sliding rod 430 are respectively slidably arranged in the two first sliding grooves 321. The first sliding groove 321 plays a guiding role for the sliding rod 430, and the first sliding groove 321 is used to guide the sliding rod 430 to move along the direction from the first end of the second connecting member 320 to the second end of the second connecting member 320 or along the direction from the second end of the second connecting member 320 to the first end of the second connecting member 320. In this way, when the user switches from the standing state to the squatting state, the included angle between the first connecting member 310 and the second connecting member 320 gradually decreases, at this time, the push rod 420 will push the sliding rod 430 to move on the calf supporting plate 200 towards the direction away from the rotating shaft 500. When the user switches from the squatting state to the standing state, the first elastic member 410 releases energy, and the first elastic member 410 can pull the sliding rod 430 to move on the calf supporting plate 200 towards the rotating shaft 500.

[0052] Further, the first elastic member 410 is multiple in number, and the first end of each first elastic member 410 is connected with the rotating shaft 500, and the second end of each first elastic member 410 is connected with the sliding rod 430. In this way, the power assisting effect can be further improved.

[0053] As shown in the drawings, Figure 3 In one embodiment, the push rod 420 has a curved section 421 which can avoid the rotating shaft 500, so that when the included angle between the first connecting member 310 and the second connecting member 320 is 180°, the curved section 421 avoids the rotating shaft 500, so that the push rod 420 does not interfere with the rotating shaft 500.

[0054] Specifically, the first end of the push rod 420 is hinged away from the side of the first connecting member 310 away from the user's leg, the other end of the push rod 420 is fixedly connected with the sliding rod 430, and the curved section 421 is formed in the middle part of the push rod 420.

[0055] As shown in the drawings, Figure 5 , Figure 6 In one embodiment, the power assisting device further comprises a second energy storage assembly, the first end of the first connecting member 310 further slidably cooperates with the thigh supporting plate 100, and the two ends of the second energy storage assembly are respectively connected with the thigh supporting plate 100 and the first connecting member 310.

[0056] Specifically, when the user switches from the standing state to the squatting state, on the one hand, the included angle between the first connecting piece 310 and the second connecting piece 320 gradually decreases, on the other hand, the thigh supporting plate 100 rotates relative to the first connecting piece 310 to adapt to the change of the thigh position, in addition, the first end of the first connecting piece 310 can also slide on the thigh supporting plate 100 to make the second energy storage assembly store energy. When the user switches from the squatting state to the standing state, on the one hand, the included angle between the first connecting piece 310 and the second connecting piece 320 gradually increases, on the other hand, the thigh supporting plate 100 rotates relative to the first connecting piece 310 to adapt to the change of the thigh position, in addition, the second energy storage assembly can also release energy to make the first end of the first connecting piece 310 slide back relative to the thigh supporting plate 100, thereby improving the assisting effect.

[0057] More specifically, the second energy storage assembly includes two second elastic members 600, the first end of the first connecting piece 310 is provided with two first mounting shafts 311, and the two first mounting shafts 311 are respectively located on both sides of the first end of the first connecting piece 310, the thigh supporting plate 100 is provided with two second sliding grooves 110, the second sliding grooves 110 extend along the height direction of the thigh supporting plate 100, and the two second sliding grooves 110 are arranged in parallel and spaced apart, and the two first mounting shafts 311 are respectively arranged in the two second sliding grooves 110, wherein the two ends of one of the second elastic members 600 are respectively connected with one of the first mounting shafts 311 and the thigh supporting plate 100, and the two ends of the other second elastic member 600 are respectively connected with the other first mounting shaft 311 and the thigh supporting plate 100.

[0058] Specifically, the second elastic member 600 is a spring.

[0059] More specifically, among the two second elastic members 600, one of the second elastic members 600 is a second elastic member a, and the other second elastic member 600 is a second elastic member b; among the two first mounting shafts 311, one of the first mounting shafts 311 is a first mounting shaft a, and the other first mounting shaft 311 is a first mounting shaft b; the thigh supporting plate 100 is provided with two first fixed shafts 610, one of the first fixed shafts 610 is a first fixed shaft a, and the other first fixed shaft 610 is a first fixed shaft b, the first fixed shaft a is located below the first mounting shaft a, the first fixed shaft b is located below the first mounting shaft b, the two ends of the second elastic member a are respectively connected with the first fixed shaft a and the first mounting shaft a, and the two ends of the second elastic member b are respectively connected with the first fixed shaft b and the first mounting shaft b.

[0060] Among them, the first fixed shaft 610 is a screw, and the first fixed shaft 610 is fastened on the thigh supporting plate 100.

[0061] Thus, when the user switches from the standing state to the squatting state, on the one hand, the included angle between the first connecting member 310 and the second connecting member 320 gradually decreases, on the other hand, the thigh supporting plate 100 rotates relative to the first connecting member 310 to adapt to the change of the thigh position, in addition, the first end of the first connecting member 310 can also slide on the thigh supporting plate 100 to store energy for the two second elastic members 600. When the user switches from the squatting state to the standing state, on the one hand, the included angle between the first connecting member 310 and the second connecting member 320 gradually increases, on the other hand, the thigh supporting plate 100 rotates relative to the first connecting member 310 to adapt to the change of the thigh position, in addition, the two second elastic members 600 can also release energy to make the first end of the first connecting member 310 slide back relative to the thigh supporting plate 100, thereby improving the assisting effect.

[0062] Further, the two first mounting shafts 311 are provided with first bearings 620, and the first bearings 620 on the two first mounting shafts 311 are arranged in the two second sliding grooves 110 respectively. Thus, the first end of the first connecting member 310 can slide and rotate on the thigh supporting plate 100.

[0063] As shown in Figure 5 , Figure 7 In one embodiment, the assisting device further comprises a third energy storage assembly, the second end of the second connecting member 320 is also in sliding cooperation with the calf supporting plate 200, and the two ends of the third energy storage assembly are connected with the calf supporting plate 200 and the second connecting member 320 respectively.

[0064] Specifically, when the user switches from the standing state to the squatting state, on the one hand, the included angle between the first connecting member 310 and the second connecting member 320 gradually decreases, on the other hand, the calf supporting plate 200 rotates relative to the second connecting member 320 to adapt to the change of the calf position, in addition, the second end of the second connecting member 320 can also slide on the calf supporting plate 200 to store energy for the third energy storage assembly. When the user switches from the squatting state to the standing state, on the one hand, the included angle between the first connecting member 310 and the second connecting member 320 gradually increases, on the other hand, the calf supporting plate 200 rotates relative to the first connecting member 310 to adapt to the change of the calf position, in addition, the third energy storage assembly can also release energy to make the second end of the second connecting member 320 slide back relative to the calf supporting plate 200, thereby improving the assisting effect.

[0065] More specifically, the third energy storage component includes two third elastic members 700. The second end of the second connector 320 is provided with two second mounting shafts 322, and the two second mounting shafts 322 are respectively located on both sides of the second end of the second connector 320. The calf support plate 200 is provided with two third sliding grooves 210. The third sliding grooves 210 extend along the height direction of the calf support plate 200, and the two third sliding grooves 210 are arranged side by side and spaced apart. The two second mounting shafts 322 are respectively inserted into the two third sliding grooves 210. The two ends of one of the third elastic members 700 are respectively connected to one of the second mounting shafts 322 and the calf support plate 200, and the two ends of the other third elastic member 700 are respectively connected to the other second mounting shaft 322 and the calf support plate 200.

[0066] Specifically, the third elastic element 700 is a spring.

[0067] More specifically, among the two third elastic elements 700, one third elastic element 700 is third elastic element a, and the other third elastic element 700 is third elastic element b; among the two second mounting shafts 322, one second mounting shaft 322 is second mounting shaft a, and the other second mounting shaft 322 is second mounting shaft b; the calf support plate 200 is provided with two second fixed shafts 710, one second fixed shaft 710 is second fixed shaft a, and the other second fixed shaft 710 is second fixed shaft b. The second fixed shaft a is located above the second mounting shaft a, and the second fixed shaft b is located above the second mounting shaft b. The two ends of the third elastic element a are connected to the second fixed shaft a and the second mounting shaft a, respectively, and the two ends of the third elastic element b are connected to the second fixed shaft b and the second mounting shaft b, respectively.

[0068] The second fixing shaft 710 is a screw, and the second fixing shaft 710 is fastened to the lower leg support plate 200.

[0069] Thus, when the user switches from a standing to a squatting position, on the one hand, the angle between the first connecting member 310 and the second connecting member 320 gradually decreases; on the other hand, the calf support plate 200 rotates relative to the second connecting member 320 to adapt to the change in calf position. Additionally, the second end of the second connecting member 320 can slide on the calf support plate 200, allowing the two third elastic members 700 to store energy. When the user switches from a squatting to a standing position, on the one hand, the angle between the first connecting member 310 and the second connecting member 320 gradually increases; on the other hand, the calf support plate 200 rotates relative to the first connecting member 310 to adapt to the change in calf position. Furthermore, the two third elastic members 700 can release energy, causing the second end of the second connecting member 320 to slide back relative to the calf support plate 200, thereby improving the assist effect.

[0070] Further, the second end of the second connecting member 320 is rotatably connected to the lower leg supporting plate 200.

[0071] It should be noted that, in the above-mentioned assisting device, the first end of the first connecting member 310 is in sliding fit with the upper leg supporting plate 100, the first end of the first connecting member 310 is movable along the height direction of the upper leg supporting plate 100, and the first end of the first connecting member 310 is rotatably connected to the upper leg supporting plate 100; the second end of the second connecting member 320 is in sliding fit with the lower leg supporting plate 200, the second end of the second connecting member 320 is movable along the height direction of the lower leg supporting plate 200, and the second end of the second connecting member 320 is rotatably connected to the lower leg supporting plate 200. When the user squats, the included angle between the first connecting member 310 and the second connecting member 320 can be reduced to 10° or less, thereby meeting the squatting needs of the user.

[0072] It should be noted that the height direction of each component refers to the height direction of each component when the user is in a standing state.

[0073] The above-mentioned assisting device, the thigh supporting plate 100 is used for being bound to the back side of the thigh of the user, the calf supporting plate 200 is used for being bound to the back side of the calf of the user, the first connecting piece 310 is used for connecting the thigh supporting plate 100 and the second connecting piece 320, the second connecting piece 320 is used for connecting the first connecting piece 310 and the calf supporting plate 200, and the first connecting piece 310 and the second connecting piece 320 are rotationally connected, so as to meet the switching between the standing state and the squatting state of the user. In addition, the thigh supporting plate 100 is rotationally connected with the first connecting piece 310, the thigh supporting plate 100 has the freedom of rotation, and can adaptively change along with the position of the thigh. The calf supporting plate 200 is rotationally connected with the second connecting piece 320, and the calf supporting plate 200 also has the freedom of rotation, and can adaptively change along with the position of the calf. In this way, the comfort of the user can be improved, and the calf supporting plate 200 and the thigh supporting plate 100 are prevented from being stuck. When the user switches from the standing state to the squatting state, the included angle between the first connecting piece 310 and the second connecting piece 320 gradually decreases. At this time, the push rod 420 pushes the sliding rod 430 to move on the calf supporting plate 200 away from the rotating shaft 500. In this way, the sliding rod 430 stretches the first elastic piece 410, so that the first elastic piece 410 stores energy. At this time, the second energy storage assembly and the third energy storage assembly also store energy. When the user switches from the squatting state to the standing state, the first elastic piece 410 releases energy, and the first elastic piece 410 pulls the sliding rod 430 to move on the calf supporting plate 200 towards the rotating shaft 500, so as to increase the included angle between the first connecting piece 310 and the second connecting piece 320, thereby assisting, and at this time, the second energy storage assembly and the third energy storage assembly also release energy, so that the user can switch from the squatting state to the standing state more labor-savingly. In addition, the above-mentioned assisting device has simple structure, and does not need to rely on the components such as the air pressure rod.

[0074] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An assisting device, characterized in that The utility model relates to an assistive device for assisting a user to walk, comprising: a thigh support plate; a shank support plate; a connecting assembly comprising a first connecting piece and a second connecting piece, a first end of the first connecting piece being rotatably connected to the thigh support plate, a second end of the first connecting piece being rotatably connected to a first end of the second connecting piece through a rotating shaft, and a second end of the second connecting piece being rotatably connected to the shank support plate; and a first energy storage assembly comprising a first elastic piece, a push rod, and a sliding rod, the sliding rod being slidably arranged on the second connecting piece, a first end of the push rod being rotatably connected to the first connecting piece, a second end of the push rod being connected to the sliding rod, a first end of the first elastic piece being connected to the rotating shaft, and a second end of the first elastic piece being connected to the sliding rod; the assistive device further comprises a second energy storage assembly, the first end of the first connecting piece further being slidably connected to the thigh support plate, and two ends of the second energy storage assembly being connected to the thigh support plate and the first connecting piece, respectively; the second energy storage assembly comprises two second elastic pieces, the first end of the first connecting piece being provided with two first mounting shafts, the two first mounting shafts being located on two sides of the first end of the first connecting piece, respectively, the thigh support plate being provided with two second sliding grooves, the second sliding grooves extending along a height direction of the thigh support plate, the two second sliding grooves being arranged side by side and spaced apart, and the two first mounting shafts being arranged in the two second sliding grooves, respectively, two ends of one of the second elastic pieces being connected to one of the first mounting shafts and the thigh support plate, respectively, and two ends of the other of the second elastic pieces being connected to the other of the first mounting shafts and the thigh support plate, respectively; wherein the second connecting piece is provided with two first sliding grooves, the first sliding grooves extending along a direction from the first end of the second connecting piece to the second end of the second connecting piece, the two first sliding grooves being arranged side by side and spaced apart, and two ends of the sliding rod being slidably arranged in the two first sliding grooves, respectively.

2. The assistive device of claim 1, wherein, of the two second elastic pieces, one of the second elastic pieces is a second elastic piece a, and the other of the second elastic pieces is a second elastic piece b; of the two first mounting shafts, one of the first mounting shafts is a first mounting shaft a, and the other of the first mounting shafts is a first mounting shaft b; the thigh support plate is provided with two first fixing shafts, one of the first fixing shafts is a first fixing shaft a, and the other of the first fixing shafts is a first fixing shaft b, the first fixing shaft a is located below the first mounting shaft a, the first fixing shaft b is located below the first mounting shaft b, two ends of the second elastic piece a are connected to the first fixing shaft a and the first mounting shaft a, respectively, and two ends of the second elastic piece b are connected to the first fixing shaft b and the first mounting shaft b, respectively.

3. The assistive device of claim 1, wherein, the two first mounting shafts are each provided with a first bearing, and the first bearings on the two first mounting shafts are arranged in the two second sliding grooves, respectively.

4. The assistive device of claim 1, wherein, The third energy storage assembly is further connected with the calf supporting plate and the second connecting piece.

5. A power assist device according to claim 4, wherein The third energy storage assembly comprises two third elastic members, the second end of the second connecting piece is provided with two second mounting shafts, the calf supporting plate is provided with two third sliding grooves extending along the height direction of the calf supporting plate, the two second mounting shafts are respectively arranged in the two third sliding grooves, one end of the third elastic member is connected with the second mounting shaft, and the other end of the third elastic member is connected with the calf supporting plate.

6. A power assist device according to claim 5, wherein In the two third elastic members, one is a third elastic member a and the other is a third elastic member b; in the two second mounting shafts, one is a second mounting shaft a and the other is a second mounting shaft b. The calf supporting plate is provided with two second fixing shafts, one is a second fixing shaft a and the other is a second fixing shaft b, the second fixing shaft a is arranged above the second mounting shaft a, the second fixing shaft b is arranged above the second mounting shaft b, the third elastic member a is connected with the second fixing shaft a and the second mounting shaft a, and the third elastic member b is connected with the second fixing shaft b and the second mounting shaft b.

7. The assist device of claim 5, wherein, The second mounting shafts are provided with second bearings, and the second bearings of the second mounting shafts are arranged in the third sliding grooves.

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