Foldable moving auxiliary equipment

Abstract

The invention provides foldable mobile auxiliary equipment, and relates to the technical field of human body auxiliary equipment. The foldable moving auxiliary equipment comprises a support, a seat, supporting legs, a first locking mechanism and a second locking mechanism. The first locking mechanism is used for locking the seat; when the first locking mechanism unlocks the seat, the seat can be folded, and the seat can move relative to the support. The second locking mechanism is used for locking the supporting legs; when the seat is folded, the second locking mechanism unlocks the supporting legs; a connecting rod mechanism is arranged on the seat; the connecting rod mechanism is used for pulling the support when the seat is folded. Linkage can be achieved among the support, the seat, the supporting legs, the first locking mechanism and the second locking mechanism, the convenience of folding operation is improved, and rapid folding of the equipment is achieved. Due to the fact that the support, the seat and the supporting legs can be folded or folded, after the equipment is folded, the overall size can be smaller.

Description

Technical Field

[0001] This application relates to the technical field of human assistance devices, and particularly to a foldable mobile assistance device. Background Art

[0002] Mobile assistance devices include walking aids, wheelchairs, etc. A mobile assistance device is a device that can assist a user in moving. Among them, a mobile assistance device can provide support for people who cannot walk independently and assist the user in moving.

[0003] In order to facilitate the storage, transportation, handling, etc. of mobile assistance devices, some devices on the market have a folding function. Among them, by folding the device, the occupied space of the device can be effectively reduced. The existing mobile assistance devices have few foldable or movable parts, and before each foldable or movable part is folded or its position is adjusted, it needs to be unlocked separately, and the operation process is very cumbersome. Summary of the Invention

[0004] The purpose of this application is to overcome the defects of the prior art and provide a foldable mobile assistance device to solve the problems in the prior art.

[0005] To solve the above problems, an embodiment of this application provides a foldable mobile assistance device, including a bracket, a seat, support legs, a first locking mechanism, and a second locking mechanism; wherein, the seat is movably connected to the bracket, and the support legs and the bracket are movably connected;

[0006] The first locking mechanism is used to lock the seat so that the seat is in the unfolded state and the seat is locked to the bracket; when the first locking mechanism releases the lock on the seat, the seat can be folded and the seat is movable relative to the bracket;

[0007] The second locking mechanism is used to lock the support legs when the seat is in the unfolded state so that the support legs are locked to the bracket; when the seat is folded, the second locking mechanism releases the lock on the support legs, and the support legs are movable relative to the bracket; wherein, when the support legs are locked to the bracket, the support legs are in the unfolded state;

[0008] A linkage mechanism is arranged on the seat, and the linkage mechanism is connected to the bracket; the linkage mechanism is used to pull the bracket when the seat is folded so that the bracket is folded up.

[0009] In a possible implementation, the bracket includes a first frame body and a second frame body, and the first frame body and the second frame body are respectively disposed on two sides of the seat; the seat includes a first seat portion and a second seat portion, and the first seat portion and the second seat portion are rotatably connected; the support legs include a first leg portion and a second leg portion, and the first leg portion and the second leg portion are respectively disposed on two sides of the seat;

[0010] The first frame body corresponds to the first seat portion, and the first frame body and the first seat portion are rotatably connected; the second frame body corresponds to the second seat portion, and the second frame body and the second seat portion are rotatably connected; when the seat is in the unfolded state, the distance between the first frame body and the second frame body is the largest; when the seat is folded, the link mechanism pulls the first frame body and the second frame body, so that the distance between the first frame body and the second frame body is reduced;

[0011] The first leg portion corresponds to the first frame body and the first seat portion, and the first leg portion and the first frame body are rotatably connected; the second leg portion corresponds to the second frame body and the second seat portion, and the second leg portion and the second frame body are rotatably connected.

[0012] In a possible implementation, the first locking mechanism includes a bolt and a socket; the bolt is slidably disposed on the first seat portion, and the socket is disposed on the second seat portion;

[0013] When the bolt is inserted into the socket, the seat is in the locked state, and the first seat portion and the second seat portion are locked; when the bolt is separated from the socket, the seat is in the unlocked state, and the first seat portion and the second seat portion can rotate relative to each other;

[0014] The first seat portion is provided with a mounting portion, and a sliding groove is provided on the mounting portion; a sliding rod is provided on the bolt, the sliding rod is inserted into the sliding groove and is slidably connected to the sliding groove; the sliding rod is connected with a handle, and the handle is used to drive the sliding rod;

[0015] A convex portion is provided on the side surface of the second seat portion, and the socket is provided on the convex portion.

[0016] In a possible implementation, the second locking mechanism includes a fixing member, a connecting member and a locking member;

[0017] A connecting groove is provided on the fixing member, and the fixing member is fixedly connected to the seat; wherein, when the fixing member moves with the seat, it drives the connecting member to move;

[0018] A sliding shaft is provided on the connecting member, and the sliding shaft is inserted into the connecting groove; wherein, the sliding shaft is used to slide along the connecting groove when the fixing member moves with the seat.

[0019] The locking member is rotatably connected to the connecting member; wherein, the locking member is used to move under the drive of the connecting member; when the seat is in the unfolded state, the support leg is locked by the locking member; when the seat is folded, the locking member releases the locking of the support leg.

[0020] In a possible implementation manner, there are two second locking mechanisms, which are respectively named the second locking mechanism I and the second locking mechanism II; the second locking mechanism I corresponds to the first seat part and the first leg part, and the second locking mechanism II corresponds to the second seat part and the second leg part;

[0021] The fixing member of the second locking mechanism I is fixedly connected to the first seat part, and the fixing member of the second locking mechanism II is fixedly connected to the second seat part;

[0022] Sliding through holes are provided on both the first frame body and the second frame body, and locking grooves are provided on both the first leg part and the second leg part;

[0023] The rod part of the locking member of the second locking mechanism I is slidably inserted into the sliding through hole of the first frame body; wherein, when the first leg part is locked by the second locking mechanism I, the lock head of the locking member of the second locking mechanism I is inserted into the locking groove of the first leg part; when the seat is folded, the locking member of the second locking mechanism I releases the locking of the first leg part, and the locking member of the second locking mechanism I is separated from the locking groove of the first leg part;

[0024] The rod part of the locking member of the second locking mechanism II is slidably inserted into the sliding through hole of the second frame body; wherein, when the second leg part is locked by the second locking mechanism II, the lock head of the locking member of the second locking mechanism II is inserted into the locking groove of the second leg part; when the seat is folded, the locking member of the second locking mechanism II releases the locking of the second leg part, and the locking member of the second locking mechanism II is separated from the locking groove of the second leg part.

[0025] In a possible implementation manner, the link mechanism includes a first link, a second link, a third link and a fourth link, a first connecting arm is provided on the first frame body, and a second connecting arm is provided on the second frame body;

[0026] One end of the first link is rotatably connected to the first seat portion, and the other end is rotatably connected to the third link;

[0027] One end of the second link is rotatably connected to the second seat portion, and the other end is rotatably connected to the fourth link;

[0028] One end of the third link is rotatably connected to the first connecting arm, and the other end is rotatably connected to the fourth link; wherein, the part of the third link connected to the first link is located between the two ends of the third link;

[0029] One end of the fourth link is rotatably connected to the second connecting arm, and the other end is rotatably connected to the third link; wherein, the part of the fourth link connected to the second link is located between the two ends of the fourth link;

[0030] Wherein, the third link includes a receiving groove for receiving the fourth link when the link mechanism is in a folded state; or, the fourth link includes a receiving groove for receiving the third link when the link mechanism is in a folded state.

[0031] In a possible implementation manner, a first mounting arm is fixedly arranged on the first leg, and a second mounting arm is fixedly arranged on the second leg;

[0032] A first rotating arm is rotatably arranged on the first mounting arm, and a second rotating arm is rotatably arranged on the second mounting arm; the first rotating arm and the second rotating arm are rotatably connected;

[0033] A locking device is arranged on the first rotating arm or the second rotating arm for locking the first rotating arm and the second rotating arm so that the first rotating arm and the second rotating arm are kept in an unfolded state; wherein, when the locking device releases the locking of the first rotating arm and the second rotating arm, the first rotating arm and the second rotating arm can rotate relative to each other for folding.

[0034] In a possible implementation manner, a first elastic member is arranged between the first leg and the first frame body, and a second elastic member is arranged between the second leg and the second frame body bracket; when the mobile auxiliary device is in an unfolded state, both the first elastic member and the second elastic member are in a tensioned state.

[0035] In a possible implementation manner, the first frame body is provided with a first connection buckle Ⅰ, and the first leg is provided with a first connection buckle Ⅱ, wherein, both ends of the first elastic member are respectively connected to the first connection buckle Ⅰ and the first connection buckle Ⅱ;

[0036] The second frame body is provided with a second connecting buckle I, and the second leg is provided with a second connecting buckle II. Wherein, both ends of the second elastic member are respectively connected to the second connecting buckle I and the second connecting buckle II;

[0037] A first hanging portion is provided on the first connecting buckle II, and a second hanging portion is provided at one end of the second elastic member connected to the second connecting buckle II; the second hanging portion is used to be hung on the first hanging portion when the mobile assistance device is in a folded state; wherein, when the second hanging portion is hung on the first hanging portion, the second elastic member passes through the second connecting buckle II, and the second elastic member is in a tensioned state.

[0038] In a possible implementation manner, an armrest is provided on the bracket, and the armrest is telescopically slidable relative to the bracket; a support member for supporting the user's hand is provided at the top of the armrest;

[0039] When the seat is in an unfolded state, the armrest has a first position and a second position relative to the bracket; wherein,

[0040] The armrest is located at the first position: the support member is used to support the user's hand when the user is in a standing state, wherein the distance between the support member and the seat is a first distance;

[0041] The armrest is located at the second position: the support member is used to support the user's hand when the user is in a sitting state, wherein the distance between the support member and the seat is a second distance;

[0042] The first distance is greater than the second distance.

[0043] The beneficial effects of the present application include:

[0044] A foldable mobile assistance device proposed in the present application includes a bracket, a seat, support legs, a first locking mechanism and a second locking mechanism. The seat is locked by the first locking mechanism, and the support legs are locked by the second locking mechanism, so that the device can be in a stable unfolded state for the user to use.

[0045] When the device needs to be folded, act on the first locking mechanism to release the locking of the seat, so that the seat can be folded. During the folding process of the seat, the second locking mechanism releases the locking of the support legs. At this time, the support legs are movable relative to the bracket, so that the support legs can be folded; in addition, when the seat is folded, the link mechanism on the seat will pull the bracket, causing the bracket to be folded up.

[0046] The bracket, seat, support leg, first locking mechanism and second locking mechanism of the foldable mobile assistance device can be interlocked, thereby improving the convenience of the folding operation and achieving the rapid folding of the device. In addition, since the bracket, seat and support leg can be retracted or folded, when the device is folded, the overall volume will be smaller, thus facilitating carrying and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0048] Figure 1 The first schematic diagram showing a foldable mobile assistance device in an unfolded state;

[0049] Figure 2 shows Figure 1 the second schematic diagram of the mobile assistance device in the unfolded state in;

[0050] Figure 3 shows Figure 1 the third schematic diagram of the mobile assistance device in the unfolded state in;

[0051] Figure 4 shows Figure 1 the fourth schematic diagram of the mobile assistance device in the unfolded state in;

[0052] Figure 5 shows Figure 1 the fifth schematic diagram of the mobile assistance device in the unfolded state in;

[0053] Figure 6 shows Figure 1 the first schematic diagram of the mobile assistance device in a folded state in;

[0054] Figure 7 shows Figure 1 the second schematic diagram of the mobile assistance device in a folded state in;

[0055] Figure 8 shows Figure 1 the third schematic diagram of the mobile assistance device in a folded state in;

[0056] Figure 9 shows Figure 6 the partial enlarged view in the a direction in;

[0057] Figure 10 showsFigure 2 Partial enlarged view in the b direction;

[0058] Figure 11 Schematic diagram showing the connection of a first bracket, a first leg and a second locking mechanism;

[0059] Figure 12 Schematic diagram showing a second locking mechanism;

[0060] Figure 13 Shows Figure 12 Exploded view of the second locking mechanism in;

[0061] Figure 14 Schematic diagram showing the connection of a first bracket and a first leg;

[0062] Figure 15 Schematic diagram showing a first leg;

[0063] Figure 16 Shows Figure 15 Partial enlarged view in the c direction in;

[0064] Figure 17 Schematic diagram showing a fourth link;

[0065] Figure 18 Schematic diagram showing a first schematic view of a first rotating arm and a second rotating arm in a deployed state;

[0066] Figure 19 Shows Figure 18 Top view of;

[0067] Figure 20 Schematic diagram of a mobility assistance device when the armrest is in the first position;

[0068] Figure 21 Shows Figure 21 Front view of the mobility assistance device in;

[0069] Figure 22 Shows Figure 21 Side view of the mobility assistance device in;

[0070] Figure 23 Schematic diagram of a mobility assistance device when the armrest is in the second position;

[0071] Figure 24 Schematic diagram showing an armrest.

[0072] Description of main component symbols:

[0073] 100 - Bracket; 110 - First frame body; 120 - Second frame body; 200 - Seat; 210 - First seat part; 220 - Second seat part; 300 - Support leg; 310 - First leg part; 320 - Second leg part; 331 - First mounting arm; 332 - Second mounting arm; 341 - First rotating arm; 342 - Second rotating arm; 350 - Locking device; 361 - First tooth part; 362 - Second tooth part; 370 - Mounting groove; 410 - Pin; 411 - Sliding rod; 420 - Insertion hole; 430 - Mounting part; 431 - Chute; 440 - Handle; 450 - Protrusion part; 510 - Fixing part; 511 - Connection groove; 520 - Connecting part; 521 - Sliding shaft; 530 - Locking part; 531 - Rod part; 532 - Lock head; 540 - Sliding connection through hole; 550 - Locking connection groove; 610 - First connecting rod; 620 - Second connecting rod; 630 - Third connecting rod; 640 - Fourth connecting rod; 651 - First connecting arm; 652 - Second connecting arm; 660 - Accommodating groove; 711 - First connection buckle Ⅰ; 712 - First connection buckle Ⅱ; 721 - Second connection buckle Ⅰ; 722 - Second connection buckle Ⅱ; 800 - Armrest; 810 - Sliding connection groove; 820 - Support part. Detailed implementation mode

[0074] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0075] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0076] Embodiment

[0077] Refer to Figures 1 - 8 , in this embodiment, a foldable mobile assistance device is proposed, including a bracket 100, a seat 200, a support leg 300, a first locking mechanism, and a second locking mechanism.

[0078] The seat 200 is movably connected to the bracket 100, and the support leg 300 is movably connected to the bracket 100. Specifically, the seat 200 is rotatably connected to the bracket 100, and the support leg 300 is rotatable with the bracket 100.

[0079] The first locking mechanism is used to lock the seat 200 so that the seat 200 is in the deployed state and the seat 200 is locked to the bracket 100. When the first locking mechanism releases the locking of the seat 200, the seat 200 can be folded, and the seat 200 is movable relative to the bracket 100.

[0080] The second locking mechanism is used to lock the support leg 300 when the seat 200 is in the deployed state so that the support leg 300 is locked to the bracket 100. When the seat 200 is folded, the second locking mechanism releases the locking of the support leg 300, and the support leg 300 is movable relative to the bracket 100. Wherein, when the support leg 300 is locked to the bracket 100, the support leg 300 is in the deployed state.

[0081] A link mechanism is provided on the seat 200, and the link mechanism is connected to the bracket 100. The link mechanism is used to pull the bracket 100 when the seat 200 is folded so that the bracket 100 is retracted.

[0082] By locking the seat 200 through the first locking mechanism and locking the support leg 300 through the second locking mechanism, the device can be in a stable deployed state for the user to use.

[0083] When the device needs to be folded, act on the first locking mechanism to release the locking of the seat 200, so that the seat 200 can be folded. During the folding of the seat 200, the second locking mechanism releases the locking of the support leg 300. At this time, the support leg 300 is movable relative to the bracket 100, so that the support leg 300 can be folded; in addition, when the seat 200 is folded, the link mechanism on the seat 200 will pull the bracket 100 to make the bracket 100 retract.

[0084] The bracket 100, seat 200, support leg 300, first locking mechanism and second locking mechanism of the foldable mobile assistance device can be interlocked, thereby improving the convenience of the folding operation and achieving the rapid folding of the device. In addition, since the bracket 100, seat 200 and support leg 300 can be retracted or folded, when the device is folded, the overall volume will be smaller, thus facilitating carrying and storage.

[0085] The bracket 100 includes a first frame body 110 and a second frame body 120, which are respectively disposed on both sides of the seat 200; the seat 200 includes a first seat part 210 and a second seat part 220, and the first seat part 210 and the second seat part 220 are rotatably connected; the support legs 300 include a first leg part 310 and a second leg part 320, and the first leg part 310 and the second leg part 320 are respectively disposed on both sides of the seat 200. Among them, rollers are provided at the bottoms of the first frame body 110, the second frame body 120, the first leg part 310 and the second leg part 320.

[0086] The first frame body 110 corresponds to the first seat part 210, and the first frame body 110 and the first seat part 210 are rotatably connected. The second frame body 120 corresponds to the second seat part 220, and the second frame body 120 and the second seat part 220 are rotatably connected.

[0087] When the seat 200 is in the unfolded state, the distance between the first frame body 110 and the second frame body 120 is the largest, and at this time, the bracket 100 is in the unfolded state. When the seat 200 is folded, the link mechanism pulls the first frame body 110 and the second frame body 120 to reduce the distance between the first frame body 110 and the second frame body 120, thus realizing the folding of the frame body.

[0088] In this embodiment, the first leg part 310 corresponds to the first frame body 110 and the first seat part 210, and the first leg part 310 and the first frame body 110 are rotatably connected; the second leg part 320 corresponds to the second frame body 120 and the second seat part 220, and the second leg part 320 and the second frame body 120 are rotatably connected.

[0089] As Figure 9 shown, the first locking mechanism includes a bolt 410 and a socket hole 420. The bolt 410 is slidably disposed on the first seat part 210, and the socket hole 420 is disposed on the second seat part 220.

[0090] When the bolt 410 is inserted into the socket hole 420, the seat 200 is locked by the first locking mechanism, and the first seat part 210 and the second seat part 220 are locked to each other. At this time, the seat 200 is in the unfolded state, and the upper surfaces of both the first seat part 210 and the second seat part 220 are in the same plane for the user to sit on.

[0091] When the bolt 410 is separated from the socket hole 420, the seat 200 is in the unlocked state, and at this time, the first seat part 210 and the second seat part 220 can rotate relative to each other.

[0092] As Figure 9 and Figure 10As shown, the first chair part 210 is provided with a mounting part 430, and a sliding groove 431 is provided on the mounting part 430. A sliding rod 411 is provided on the bolt 410, and the sliding rod 411 is inserted into the sliding groove 431 and is slidably connected to the sliding groove 431. The sliding rod 411 is connected with a handle 440, and the handle 440 is used to drive the sliding rod 411. Figure 2 The handle 440 is removed from it.

[0093] A spring may be provided inside the mounting part 430, and the spring may abut against the sliding rod 411 or the bolt 410. When there is no external force, the elastic force provided by the spring causes the bolt 410 to always extend out of the mounting part 430. When the bolt 410 is inserted into the insertion hole 420, through the action of the spring, it can be ensured that the bolt 410 and the insertion hole 420 always remain in a combined state. In this way, even when the seat 200 vibrates, collides or shakes, etc., the bolt 410 and the insertion hole 420 will not separate.

[0094] As Figure 9 shown, a convex part 450 is provided on the side of the second chair part 220, and the insertion hole 420 is provided on the convex part 450.

[0095] When the seat 200 is in the unfolded state, the bolt 410 is inserted into the insertion hole 420, thereby realizing the locking of the seat 200. When the seat 200 needs to be folded, hold the handle 440 with your hand and apply a force to the handle 440 (when the seat 200 is in the horizontal state, the direction of the force applied to the handle 440 is vertically upward), so that the handle 440 drives the sliding rod 411 to move; the sliding rod 411 moves relative to the sliding groove 431 and drives the bolt 410 to retract into the mounting part 430, so that the bolt 410 is separated from the insertion hole 420, realizing the unlocking of the seat 200. During the process of the handle 440 continuously moving upward under the action of an external force, under the action of gravity, the first chair part 210 and the second chair part 220 rotate relative to each other, so that the seat 200 automatically folds; in addition, at the same time, the first chair part 210 rotates relative to the first frame body 110, and the second chair part 220 rotates relative to the second frame body 120.

[0096] A groove for accommodating the handle 440 is provided on the first chair part 210 or / and the second chair part 220. When the seat 200 is in the unfolded state, the handle 440 can be rotated and placed in the groove, so that the handle 440 is stored in the groove, avoiding affecting the user's sitting. A cushion may be laid on the seat 200, thereby improving the comfort of the user's sitting. The cushion may cover the groove.

[0097] As Figures 11 - 13 shown, in this embodiment, the second locking mechanism includes a fixing part 510, a connecting part 520 and a locking part 530.

[0098] The fixing member 510 is provided with a connecting groove 511, and the fixing member 510 is fixedly connected to the seat 200. Among them, when the fixing member 510 moves with the seat 200, it drives the connecting member 520 to move.

[0099] The connecting member 520 is provided with a sliding shaft 521, and the sliding shaft 521 is inserted into the connecting groove 511. Among them, when the fixing member 510 moves with the seat 200, the sliding shaft 521 slides along the connecting groove 511.

[0100] The locking member 530 is rotatably connected to the connecting member 520. Among them, the locking member 530 is used to move under the drive of the connecting member 520. When the seat 200 is in the unfolded state, the support leg 300 is locked by the locking member 530; when the seat 200 is folded, the locking member 530 releases the locking of the support leg 300.

[0101] There are two second locking mechanisms, which are respectively named the second locking mechanism Ⅰ and the second locking mechanism Ⅱ. The second locking mechanism Ⅰ and the second locking mechanism Ⅱ are both second locking mechanisms, and their structures are the same. The different names are for the convenience of description in the following text.

[0102] The second locking mechanism Ⅰ corresponds to the first seat part 210 and the first leg part 310, and the second locking mechanism Ⅱ corresponds to the second seat part 220 and the second leg part 320. The fixing member 510 of the second locking mechanism Ⅰ is fixedly connected to the first seat part 210, and the fixing member 510 of the second locking mechanism Ⅱ is fixedly connected to the second seat part 220.

[0103] As Figures 14 - 16 shown, the first frame body 110 is provided with a sliding through hole 540, and the first leg part 310 is provided with a locking groove 550. The second frame body 120 is also provided with a sliding through hole 540, and the second leg part 320 is also provided with a locking groove 550. Among them, the structure of the second frame body 120 can refer to the first frame body 110, and the structure of the second leg part 320 can refer to the first leg part 310. The second frame body 120 and the second leg part 320 are not shown separately in the drawings.

[0104] The rod part 531 of the locking member 530 of the second locking mechanism Ⅰ is slidably inserted into the sliding through hole 540 of the first frame body 110. Among them, when the first leg part 310 is locked by the second locking mechanism Ⅰ, the lock head 532 of the locking member 530 of the second locking mechanism Ⅰ is inserted into the locking groove 550 of the first leg part 310; when the seat 200 is folded, the locking member 530 of the second locking mechanism Ⅰ releases the locking of the first leg part 310, and the locking member 530 of the second locking mechanism Ⅰ is separated from the locking groove 550 of the first leg part 310.

[0105] The rod portion 531 of the locking member 530 of the second locking mechanism II is slidably inserted into the sliding through hole 540 of the second frame body 120. Among them, when the second leg portion 320 is locked by the second locking mechanism II, the lock head 532 of the locking member 530 of the second locking mechanism II is inserted into the locking groove 550 of the second leg portion 320; when the seat 200 is folded, the locking member 530 of the second locking mechanism II releases the locking of the second leg portion 320, and the locking member 530 of the second locking mechanism II is separated from the locking groove 550 of the second leg portion 320.

[0106] The working principles of both the first locking mechanism I and the second locking mechanism II are the same. The following takes the first locking mechanism I as an example for corresponding description, where the fixing member 510, the connecting member 520, and the locking member 530 mentioned in the following content all belong to the first locking mechanism I.

[0107] The seat 200 is in the unfolded state, and the lock head 532 of the locking member 530 is inserted into the locking groove 550 of the first leg portion 310. At this time, the first leg portion 310 is locked and cannot rotate relative to the first frame body 110. When the seat 200 is folded, the first seat portion 210 rotates relative to the first frame body 110. During this process, the fixing member 510 rotates synchronously with the first seat portion 210; when the fixing member 510 rotates with the first seat portion 210, the connecting groove 511 of the fixing member 510 moves relative to the sliding shaft 521 of the connecting member 520. Correspondingly, under the guidance of the connecting groove 511, the sliding shaft 521 slides along the connecting groove 511; when the sliding shaft 521 moves to the end of the connecting groove 511, as the fixing member 510 continues to rotate, the sliding shaft 521 will be driven by the fixing member 510 and move; since the sliding shaft 521 is provided on the connecting member 520, the connecting member 520 will move with the sliding shaft 521; since the connecting member 520 is rotatably connected to the locking member 530, the connecting member 520 will rotate relative to the locking member 530 during the movement. In this way, the connecting member 520 will drive the locking member 530 to slide relative to the sliding through hole 540 of the first frame body 110; when the locking member 530 slides a certain distance relative to the sliding through hole 540, the lock head 532 of the locking member 530 will be separated from the locking groove 550 of the first leg portion 310, thereby releasing the locking of the first leg portion 310; when the first leg portion 310 is unlocked, the first leg portion 310 can rotate relative to the first frame body 110; driving the first leg portion 310 to rotate towards the side where the first frame body 110 is located realizes the folding of the first leg portion 310.

[0108] When it is necessary to lock the first leg 310, first rotate the first leg 310 and make it enter the unfolded state. At this time, the included angle between the support leg 300 and the first leg 310 is the largest. Among them, when the first leg 310 is in the unfolded state, the locking groove 550 of the first leg 310 is aligned with the sliding through hole 540 of the first frame body 110. After that, the seat 200 is unfolded. At this time, the first leg 310 rotates relative to the first frame body 110. Referring to the description of the relevant principle above, the fixing member 510 acts on the connecting member 520, and the connecting member 520 drives the locking member 530 to slide relative to the sliding through hole 540 of the first frame body 110, so that the lock head 532 of the locking member 530 is inserted into the locking groove 550; the first leg 310 is locked under the restraint of the locking member 530. At this time, the first leg 310 is locked in the unfolded state and cannot rotate relative to the first frame body 110.

[0109] As Figures 5 - 8 shown, the linkage mechanism includes a first link 610, a second link 620, a third link 630 and a fourth link 640. A first connecting arm 651 is provided on the first frame body 110, and a second connecting arm 652 is provided on the second frame body 120.

[0110] One end of the first link 610 is rotatably connected to the first seat part 210, and the other end is rotatably connected to the third link 630;

[0111] One end of the second link 620 is rotatably connected to the second seat part 220, and the other end is rotatably connected to the fourth link 640;

[0112] One end of the third link 630 is rotatably connected to the first connecting arm 651, and the other end is rotatably connected to the fourth link 640; among them, the part where the third link 630 is connected to the first link 610 is located between the two ends of the third link 630;

[0113] One end of the fourth link 640 is rotatably connected to the second connecting arm 652, and the other end is rotatably connected to the third link 630; among them, the part where the fourth link 640 is connected to the second link 620 is located between the two ends of the fourth link 640.

[0114] The third link 630 includes a receiving groove 660, and the receiving groove 660 is used to receive the fourth link 640 when the linkage mechanism is in the folded state; alternatively, the fourth link 640 includes a receiving groove 660, and the receiving groove 660 is used to receive the third link 630 when the linkage mechanism is in the folded state. As Figure 17 shown, in this embodiment, the receiving groove 660 is provided on the fourth link 640.

[0115] When the seat 200 is folded, the first link 610 moves with the first seat part 210, and the second link 620 moves with the second seat part 220; under the action of the first link 610 and the second link 620, the first frame 110 and the second frame 120 approach each other to realize the folding of the frame; at the same time, under the action of the first link 610 and the second link 620, the third link 630 and the fourth link 640 rotate relative to each other, and both the third link 630 and the fourth link 640 rotate towards the side where the seat 200 is located, thereby realizing the folding of the link mechanism.

[0116] As Figure 3 shown, the first leg 310 is fixedly provided with a first mounting arm 331, and the second leg 320 is fixedly provided with a second mounting arm 332. A first rotating arm 341 is rotatably provided on the first mounting arm 331, and a second rotating arm 342 is rotatably provided on the second mounting arm 332, wherein the first rotating arm 341 and the second rotating arm 342 are rotatably connected.

[0117] A locking device 350 is provided on the first rotating arm 341 or the second rotating arm 342. The locking device 350 is used to lock the first rotating arm 341 and the second rotating arm 342 so that the first rotating arm 341 and the second rotating arm 342 remain in the unfolded state. When the first rotating arm 341 and the second rotating arm 342 are locked, the seat 200 cannot be folded. Therefore, when the seat 200 needs to be folded, the first rotating arm 341 and the second rotating arm 342 need to be unlocked first.

[0118] When the locking device 350 releases the locking of the first rotating arm 341 and the second rotating arm 342, the first rotating arm 341 and the second rotating arm 342 can rotate relative to each other for folding.

[0119] As Figure 18 and Figure 19 shown, in this embodiment, the locking device 350 is provided on the second rotating arm 342, a first tooth part 361 is provided on the first rotating arm 341, and the locking device 350 includes a second tooth part 362. When the first rotating arm 341 and the second rotating arm 342 are locked, the first tooth part 361 engages with the second tooth part 362, so that the first rotating arm 341 and the second rotating arm 342 cannot rotate relative to each other.

[0120] An installation groove 370 is provided on the first rotating arm 341. The installation groove 370 forms an opening on one side of the first rotating arm 341. Among them, the second rotating arm 342 is placed in the installation groove 370 through the opening. The end of the second rotating arm 342 away from the second mounting arm 332 is located in the installation groove 370, and this end is rotatably connected to the first rotating arm 341.

[0121] In addition to the locking device 350 mentioned above, the first rotating arm 341 and the second rotating arm 342 can also be locked by means of bolts, straps, buckles, etc.

[0122] In this embodiment, a first elastic member is provided between the first leg 310 and the first frame 110, and a second elastic member is provided between the second leg 320 and the second frame 120 of the bracket 100. When the mobile assistance device is in the deployed state, both the first elastic member and the second elastic member are in a tensioned state. The first elastic member and the second elastic member can be made of elastic bands or elastic ropes, etc. It should be noted that the first elastic member and the second elastic member are not shown in the drawings.

[0123] When the seat 200 is folded, the locking between the first leg 310 and the first frame 110 is released, and the locking between the second leg 320 and the second frame 120 is released. At this time, under the action of the first elastic member and the second elastic member, the first leg 310 rotates towards the first frame 110, and the second leg 320 rotates towards the second frame 120, thereby realizing the rapid folding of the first leg 310 and the second leg 320.

[0124] As Figure 3 and Figure 4 shown, the first frame 110 is provided with a first connecting buckle Ⅰ 711, and the first leg 310 is provided with a first connecting buckle Ⅱ 712. Among them, the two ends of the first elastic member are respectively connected to the first connecting buckle Ⅰ 711 and the first connecting buckle Ⅱ 712; the second frame 120 is provided with a second connecting buckle Ⅰ 721, and the second leg 320 is provided with a second connecting buckle Ⅱ 722. Among them, the two ends of the second elastic member are respectively connected to the second connecting buckle Ⅰ 721 and the second connecting buckle Ⅱ 722.

[0125] Further, a first hanging portion is provided on the first connecting buckle II 712, and a second hanging portion is provided at one end of the second elastic member connected to the second connecting buckle II 722. The second hanging portion is used to be hung on the first hanging portion when the mobile assistance device is in a folded state. Wherein, when the second hanging portion is hung on the first hanging portion, the second elastic member passes through the perforation of the second connecting buckle II 722, and the second elastic member is in a tensioned state. At this time, the second elastic member acts on the second frame body 120, the second leg portion 320 and the first frame body 110 at the same time, so that the first frame body 110 and the second frame body 120 are kept in a folded state, and the second frame body 120 and the second leg portion 320 are kept in a folded state. The first leg portion 310 and the second leg portion 320 are linked by a first rotating arm 341 and a second rotating arm 342, the first bracket 100 is linked with the first seat portion 210, and the second frame body 120 is linked with the second seat portion 220. In this way, when the first frame body 110 and the second frame body 120 are kept in a folded state, and the second frame body 120 and the second leg portion 320 are kept in a folded state, the whole device can be kept in a folded state, thus facilitating packaging, transportation, storage, etc. of the device.

[0126] In this embodiment, the first hanging portion includes a hanging hole, and the second hanging portion includes a hook. In other embodiments, the first hanging portion includes a hook, and the second hanging portion includes a hanging hole.

[0127] As Figures 20 - 24 shown, an armrest 800 is provided on the bracket 100. The armrest 800 is telescopically slidable relative to the bracket 100, and a support member 820 for supporting the user's hand is provided at the top of the armrest 800.

[0128] When the seat 200 is in the unfolded state, the armrest 800 has a first position and a second position relative to the bracket 100.

[0129] The armrest 800 is located at the first position: the support member 820 is used to support the user's hand when the user is in a standing state. Wherein, the distance between the support member 820 and the seat 200 is a first distance. At this time, the usage mode of the device is the walking aid mode, and the armrest 800 can support the user in a standing state, so that the user can walk with the help of the device.

[0130] The armrest 800 is located at the second position: the support member 820 is used to support the user's hand when the user is in a sitting state. Wherein, the distance between the support member 820 and the seat 200 is a second distance. At this time, the usage mode of the device is the wheelchair mode, and the armrest 800 can support the user in a sitting state.

[0131] The first distance is greater than the second distance, which ensures that the distance between the armrest 800 and the seat 200 can correspond to the user's current posture.

[0132] As Figure 1 shown, sliding grooves 810 are provided on both the first frame body 110 and the second frame body 120. Among them, the armrests 800 correspond to the sliding grooves 810 one by one. The armrests 800 are inserted into the corresponding sliding grooves 810 and are slidably connected to the sliding grooves 810.

[0133] The first frame body 110 and the second frame body 120 can be provided with a positioning device. When the armrest 800 moves to the corresponding position, the armrest 800 is locked by the positioning device, so that the armrest 800 cannot slide relative to the corresponding sliding groove 810. The positioning device can adopt a spring bolt 410, a locking bolt, etc. In addition, other solutions in the existing design can also be referred to for the locking method of the armrest 800.

[0134] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean 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 this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0135] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A foldable mobility assisting device, characterized in that: It comprises a bracket, a seat, a supporting leg, a first locking mechanism and a second locking mechanism; wherein the seat is movably connected to the bracket, and the supporting leg is movably connected to the bracket; The first locking mechanism is used to lock the seat so that the seat is in an unfolded state and the seat is locked with the bracket; when the first locking mechanism releases the lock on the seat, the seat can be folded and the seat can move relative to the bracket; The second locking mechanism is used to lock the support leg when the seat is in the unfolded state, so that the support leg is locked with the bracket; when the seat is folded, the second locking mechanism releases the lock of the support leg, and the support leg is movable relative to the bracket; wherein, when the support leg is locked with the bracket, the support leg is in the unfolded state; The seat is provided with a connecting rod mechanism, which is connected to the bracket; the connecting rod mechanism is used to pull the bracket when the seat is folded, so that the bracket is folded.

2. The foldable mobility assisting device according to claim 1, characterized in that: The bracket includes a first frame and a second frame, and the first frame and the second frame are respectively placed on both sides of the seat; the seat includes a first chair part and a second chair part, and the first chair part is rotatably connected to the second chair part; the support leg includes a first leg and a second leg, and the first leg and the second leg are partially placed on both sides of the seat; The first frame corresponds to the first chair part, wherein the first frame is rotatably connected to the first chair part; the second frame corresponds to the second chair part, wherein the second frame is rotatably connected to the second chair part; when the seat is in an unfolded state, the distance between the first frame and the second frame is the largest; when the seat is folded, the link mechanism pulls the first frame and the second frame to reduce the distance between the first frame and the second frame; The first leg portion corresponds to the first frame and the first chair portion, wherein the first leg portion is rotatably connected to the first frame; the second leg portion corresponds to the second frame and the second chair portion, wherein the second leg portion is rotatably connected to the second frame.

3. The foldable mobility assisting device according to claim 2, characterized in that: The first locking mechanism includes a latch and a plug hole; the latch is slidably disposed on the first chair part, and the plug hole is disposed on the second chair part; When the latch is inserted into the insertion hole, the seat is in a locked state, and the first chair part and the second chair part are locked; when the latch is separated from the insertion hole, the seat is in an unlocked state, and the first chair part and the second chair part can rotate relative to each other; The first chair part is provided with a mounting part, and the mounting part is provided with a slide groove; the latch is provided with a sliding rod, and the sliding rod is inserted into the slide groove and slidably connected with the slide groove; the sliding rod is connected with a handle, wherein the handle is used to drive the sliding rod; A convex portion is arranged on the side of the second chair portion, and the plug-in hole is arranged on the convex portion.

4. The foldable mobility assisting device according to claim 2, characterized in that: The second locking mechanism includes a fixing member, a connecting member and a locking member; The fixing member is provided with a connecting groove, and the fixing member is fixedly connected to the seat; wherein the fixing member is used to drive the connecting member to move when the seat moves; The connecting member is provided with a sliding shaft, and the sliding shaft is inserted into the connecting groove; wherein the sliding shaft is used to slide along the connecting groove when the fixing member moves with the seat; The locking member is rotatably connected to the connecting member, wherein the locking member is used to move under the drive of the connecting member; when the seat is in an unfolded state, the supporting leg is locked by the locking member; when the seat is folded, the locking member releases the lock on the supporting leg.

5. The foldable mobility assisting device according to claim 4, characterized in that: There are two second locking mechanisms, which are named as second locking mechanism I and second locking mechanism II respectively; the second locking mechanism I corresponds to the first chair part and the first leg part, and the second locking mechanism II corresponds to the second chair part and the second leg part; The fixing member of the second locking mechanism I is fixedly connected to the first chair part, and the fixing member of the second locking mechanism II is fixedly connected to the second chair part; The first frame and the second frame are both provided with sliding holes, and the first leg and the second leg are both provided with locking grooves; The rod of the locking member of the second locking mechanism I can be slidably inserted into the sliding through hole of the first frame; wherein, when the first leg is locked by the second locking mechanism I, the locking head of the locking member of the second locking mechanism I is inserted into the locking groove of the first leg; when the seat is folded, the locking member of the second locking mechanism I releases the lock on the first leg, and the locking member of the second locking mechanism I is separated from the locking groove of the first leg; The rod portion of the locking member of the second locking mechanism II can be slidably inserted into the sliding through hole of the second frame; wherein, when the second leg is locked by the second locking mechanism II, the locking head of the locking member of the second locking mechanism II is inserted into the locking groove of the second leg; when the seat is folded, the locking member of the second locking mechanism II releases the lock on the second leg, and the locking member of the second locking mechanism II is separated from the locking groove of the second leg.

6. The foldable mobility assisting device according to claim 2, characterized in that: The connecting rod mechanism includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first frame is provided with a first connecting arm, and the second frame is provided with a second connecting arm; One end of the first connecting rod is rotatably connected to the first chair part, and the other end is rotatably connected to the third connecting rod; One end of the second connecting rod is rotatably connected to the second chair part, and the other end is rotatably connected to the fourth connecting rod; One end of the third connecting rod is rotatably connected to the first connecting arm, and the other end is rotatably connected to the fourth connecting rod; wherein the portion where the third connecting rod is connected to the first connecting rod is located between the two ends of the third connecting rod; One end of the fourth connecting rod is rotatably connected to the second connecting arm, and the other end is rotatably connected to the third connecting rod; wherein the portion where the fourth connecting rod is connected to the second connecting rod is located between the two ends of the fourth connecting rod; Wherein, the third connecting rod includes a receiving groove, and the receiving groove is used to accommodate the fourth connecting rod when the connecting rod mechanism is in a folded state; or, the fourth connecting rod includes a receiving groove, and the receiving groove is used to accommodate the third connecting rod when the connecting rod mechanism is in a folded state.

7. The foldable mobility assisting device according to claim 2, characterized in that: The first leg is fixedly provided with a first mounting arm, and the second leg is fixedly provided with a second mounting arm; A first rotating arm is rotatably provided on the first mounting arm, and a second rotating arm is rotatably provided on the second mounting arm; the first rotating arm is rotatably connected to the second rotating arm; A locking device is provided on the first rotating arm or the second rotating arm, and the locking device is used to lock the first rotating arm and the second rotating arm so that the first rotating arm and the second rotating arm remain in the unfolded state; wherein, when the locking device releases the lock on the first rotating arm and the second rotating arm, the first rotating arm and the second rotating arm can rotate relative to each other for folding.

8. The foldable mobility assisting device according to claim 2, characterized in that: A first elastic member is provided between the first leg and the first frame, and a second elastic member is provided between the second leg and the second frame bracket; when the mobility assisting device is in an unfolded state, both the first elastic member and the second elastic member are in a tensioned state.

9. The foldable mobility assisting device according to claim 8, characterized in that: The first frame is provided with a first connecting buckle I, and the first leg is provided with a first connecting buckle II, wherein two ends of the first elastic member are respectively connected to the first connecting buckle I and the first connecting buckle II; The second frame is provided with a second connecting buckle I, and the second leg is provided with a second connecting buckle II, wherein two ends of the second elastic member are respectively connected to the second connecting buckle I and the second connecting buckle II; A first hanging portion is provided on the first connecting buckle II, and a second hanging portion is provided on one end of the second elastic member connected to the second connecting buckle II; the second hanging portion is used to be hung on the first hanging portion when the mobile auxiliary device is in a folded state; wherein, when the second hanging portion is hung on the first hanging portion, the second elastic member passes through the second connecting buckle II, and the second elastic member is in a tensioned state.

10. The foldable mobility assisting device according to claim 1, characterized in that: The bracket is provided with an armrest, and the armrest is retractable and slidable relative to the bracket; a support member for supporting a user's hand is provided on the top of the armrest; When the seat is in an unfolded state, the armrest has a first position and a second position relative to the bracket; wherein, The armrest is located at the first position: the support member is used to support the user's hands when the user is in a standing state, wherein the distance between the support member and the seat is a first distance; The armrest is located at the second position: the support member is used to support the user's hands when the user is in a sitting state, wherein the distance between the support member and the seat is the second distance; The first distance is greater than the second distance.

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