Lifting aids

Abstract

The present invention provides a standing assistance device, which relates to the technical field of medical care equipment, and specifically includes a base assembly, a driving mechanism and a connecting rod assembly; the base assembly includes a base and a pushing member; the driving mechanism is arranged at one end in the base; the connecting rod assembly is arranged in the base, and the connecting rod assembly includes a guide member, a first push rod and a second push rod. The patient can sit on the pushing member, and the guide member is pushed by a driving motor. The guide member rotates upward during the pushing process, and the end of the second push rod is pushed upward during the rotation process. The guide member can push the second push rod to change the second push rod from a flat state to an inclined state so that the second push rod can be rotated. Therefore, when not in use, the second push rod and the first push rod can be in a nearly flat posture in the base, and the folding effect is very excellent, thereby making the standing assistance device provided by the present invention have a smaller thickness when folded, and is very convenient to set up and use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care equipment, and in particular to a standing assistance device. Background Art

[0002] A lifting aid is a device used to help users with limited mobility or physical strength to transition from a sitting or lying position to a standing position. This aid is widely used in the lives of the elderly, rehabilitation patients and the disabled to improve their quality of life and independence.

[0003] The purpose of the standing aid device is to help people with weak legs and feet to stand up, so the product needs to be placed on a seat such as a sofa or stool. It is usually made of sturdy metal or composite materials and designed into a stable frame structure to ensure the safety of the user during use. In addition, in order to facilitate storage and transportation, most standing aid devices are designed to be foldable. They are unfolded when in use and folded and stored when not in use.

[0004] Since the standing-up assisting device needs to be placed on a seat such as a sofa or a stool, the thickness of the standing-up assisting device needs to be controlled. The thinner the thickness, the more convenient it is to use. However, in the prior art, an electric push rod is often used as a driving component to achieve pushing-assisted standing-up. When the thickness of the folding support structure is reduced to a certain size, it is easy to cause the starting angle to be too small and unable to rise. The thickness of the folding structure is relatively large, which is inconvenient to use. Summary of the invention

[0005] The purpose of the present invention is to provide a device for assisting standing up, so as to alleviate the technical problems in the prior art that the thickness of the folding support structure is reduced to a certain size, which easily leads to a too small starting angle and inability to rise, and the thickness of the folding structure is large, which is inconvenient to use.

[0006] The present invention provides a standing assistance device, comprising: a base assembly, a driving mechanism and a connecting rod assembly; the base assembly comprises a base and a pushing member, the pushing member cover is arranged above the base; the driving mechanism is arranged at one end in the base, and the driving end of the driving mechanism moves horizontally toward the other end in the base; the connecting rod assembly is arranged between the base and the pushing member, the connecting rod assembly comprises a guide member, a first push rod and a second push rod, one end of the guide member is a connecting end and is hinged to the driving end of the driving mechanism, the driving mechanism pushes the guide member to move and makes the other end of the guide member swing upward, the first push rod has a first end and a second end, the The first end is provided with a bending portion, which is inclined upward and extends in a direction away from the second end, the bending portion is hinged to the guide member, the second end is hinged to the bottom surface of the pushing member, the second push rod is cross-arranged with the first push rod and hinged at the intersection, one end of the second push rod is slidingly matched with the pushing member, and the other end of the second push rod is hinged to the base; when the driving mechanism is in a retracted state, the guide member is located in a first position, one end of the second push rod is located at the top of the guide member and is in contact with the top surface of the guide member; when the driving mechanism is in an extended state, the guide member is located in a second position, and one end of the second push rod is separated from the guide member.

[0007] Further, the guide member has a first guide portion and a second guide portion; the first guide portion and the second guide portion are arranged in sequence along a direction away from the connecting end, and the position of the first guide portion is always higher than the connecting end; the bending portion is hinged to the first guide portion; when the guide member is in the first position, the position of the second guide portion is lower than the first guide portion, and when the guide member is in the second position, the position of the second guide portion is higher than the first guide portion.

[0008] Furthermore, a concave structure is provided at the top of one end of the second guide portion close to the first guide portion; and the end of the second push rod abuts against the concave structure.

[0009] Furthermore, an included angle between the first guide portion and the second guide portion is a first obtuse angle; the angle of the first obtuse angle is greater than or equal to 135° and less than or equal to 155°.

[0010] Furthermore, a roller is provided at one end of the second push rod away from the base; when the guide member is located at the first position, the roller abuts against the concave structure; and the top surface of the roller abuts against the bottom surface of the pushing member.

[0011] Furthermore, a through slot is provided in the first push rod, and a first avoidance hole penetrating the bottom of the through slot is provided in the through slot; the position of the first avoidance hole is opposite to the position of the guide member; the end of the guide member away from the connecting section is the rotating end, and when the guide member is in the first position, the guide member is located in the first avoidance hole.

[0012] Furthermore, the rotating end is provided with a limiting portion; the limiting portion is an outwardly protruding structure extending in a direction away from the connecting end; when the guide member is located at the first position, the limiting portion abuts against the bottom of the through slot.

[0013] Furthermore, the second end is provided with a connecting seat; the top surface of the connecting seat is connected to the pushing member, and the connecting seat is hinged to the first push rod; a second avoidance hole is provided on the second push rod, and when the guide member is in the first position, the connecting seat is located in the second avoidance hole.

[0014] Furthermore, the rising assistance device also includes a limit member; the limit member is arranged on the first push rod, and the second push rod is provided with a second avoidance hole; when the guide member is located in the second position, the limit member abuts against the second push rod; when the guide member is located in the first position, the limit member is located in the second avoidance hole.

[0015] Furthermore, a third avoidance hole is provided in the second push rod; the third avoidance hole extends along the length direction of the second push rod and penetrates the second push rod in the vertical direction; and the second end is located in the third avoidance hole.

[0016] Furthermore, the driving mechanism includes a driving motor, a screw assembly and a connecting shaft; the driving motor is arranged at one end of the base; the screw assembly includes a screw and a moving part, the screw is transmission-connected to the driving motor, the moving part is threadedly engaged with the screw and is limited by the base so that the moving part moves along the extension direction of the screw; the connecting shaft is connected to the moving part; there are two connecting rod assemblies, and the connecting ends of the two connecting rod assemblies are respectively connected to the two ends of the connecting shaft.

[0017] Furthermore, there are two armrests, and the two armrests are arranged at intervals on the top surface of the pushing member.

[0018] Beneficial effects:

[0019] In the standing assistance device provided by the present invention, the guide member is converted from the first position to the second position under the drive mechanism. During the conversion process, the guide member rotates around the connecting end to push one end of the second push rod upward, so that the second push rod can be tilted at a larger angle from a nearly flat state to drive the rotation. At the same time, the first push rod rotates under the combined action of the bending portion and the hinge point with the second push rod, and the first push rod moves toward the hinge point between the second push rod and the base, so that the first push rod and the second push rod cooperate to rotate to move and rotate the pushing member upward, thereby realizing the standing assistance action. Therefore, when not in use, the second push rod and the first push rod can be in a nearly flat posture in the base, and the folding effect is very excellent, so that the standing assistance device provided by the present invention has a smaller thickness when folded, and, when in use, the first push rod and the second push rod can be driven to rotate without excessive starting force, thereby driving the pushing member to move to realize the standing assistance action, making the setting of the standing assistance device more convenient and the use more smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a standing assistance device provided in an embodiment of the present invention;

[0022] Figure 2 A schematic side view of the structure of the standing assistance device provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the positional relationship between a base assembly and a connecting rod assembly of a standing assistance device provided in an embodiment of the invention;

[0024] Figure 4 A schematic diagram of the structure of the standing-up assistance device provided by an embodiment of the present invention when the driving mechanism is in a retracted state;

[0025] Figure 5 A schematic diagram of the structure of the standing assistance device provided by an embodiment of the present invention at the beginning of the second stage;

[0026] Figure 6 A schematic diagram of the structure of the standing-up assisting device provided by an embodiment of the present invention when it is fully extended;

[0027] Figure 7 A schematic diagram of the structure of a guide member in a standing assistance device provided in an embodiment of the present invention.

[0028] icon:

[0029] 100-base assembly; 110-base; 120-pushing member; 121-anti-turning member; 122-guide groove; 130-armrest; 200-driving mechanism; 210-driving motor; 220-screw assembly; 300-connecting rod assembly; 310-guide member; 311-connecting end; 312-first guide part; 313-second guide part; 314-rotating end; 315-limiting part; 320-first push rod; 321-bending part; 322-through groove; 323-first avoidance hole; 324-limiting member; 325-connecting seat; 330-second push rod; 331-roller; 332-second avoidance hole; 333-third avoidance hole; 334-fourth avoidance hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0037] See also Figures 1 to 3 The standing assistance device provided in this embodiment includes a base assembly 100, a driving mechanism 200 and a connecting rod assembly 300.

[0038] The base assembly 100 includes a base 110 and a pusher 120, and the pusher 120 is covered on the base 110. The driving mechanism 200 is disposed at one end of the base 110, and the driving end of the driving mechanism 200 moves horizontally toward the other end of the base 110. The connecting rod assembly 300 is disposed between the base 110 and the pusher 120, and the connecting rod assembly 300 includes a guide member 310, a first push rod 320, and a second push rod 330.

[0039] Combination Figure 7 One end of the guide member 310 is a connecting end 311 and is hinged to the driving end of the driving mechanism 200. The driving mechanism 200 pushes the guide member 310 to move and causes the other end of the guide member 310 to swing upward.

[0040] The first push rod 320 has a first end and a second end, the first end is provided with a bending portion 321, the bending portion 321 is inclined upward and extends in a direction away from the second end, the bending portion 321 is hinged to the guide member 310, and the second end is hinged to the bottom surface of the pushing member 120, the second push rod 330 is cross-arranged with the first push rod 320 and hinged at the intersection, one end of the second push rod 330 is slidably matched with the pushing member 120, and the other end of the second push rod 330 is hinged to the base 110.

[0041] It should be noted that when the driving mechanism 200 is in the retracted state, the guide member 310 is in the first position, and one end of the second push rod 330 is located at the top of the guide member 310 and fits the top surface of the guide member 310. When the driving mechanism 200 is in the fully extended state, the guide member 310 is in the second position, and one end of the second push rod 330 is separated from the guide member 310.

[0042] When in use, the standing assist device is placed on a seat, the patient sits on the pusher 120, and the driving mechanism 200 is controlled to push the guide member 310. Since the first end of the first push rod 320 is provided with a bent portion 321 extending obliquely upward, the bent portion 321 generates an upward torque under the push of the driving mechanism 200 after being hinged to the guide member 310, thereby driving the guide member 310 to rotate upward during the pushing process through the hinge point between the first push rod 320 and the guide member 310.

[0043] During the upward rotation process, the guide member 310 pushes the end of the second push rod 330 to move upward, so that the second push rod 330 changes from a state with a smaller angle with the horizontal plane to a state with a larger angle with the horizontal plane. Under the continuous push of the driving mechanism 200, the guide member 310 drives the first push rod 320 to move toward the hinge point between the second push rod 330 and the base 110.

[0044] During the movement, the second push rod 330 rotates with the hinge point with the base 110 as the rotation axis, the hinge point of the first push rod 320 and the second push rod 330 moves upward, and the intersection point of the first push rod 320 and the guide member 310 also moves upward slightly. The first push rod 320 rotates under the rotation of the second push rod 330 and the guide member 310, so that the end of the first push rod 320 hinged with the push member 120 moves upward under the rotation, and the first push rod 320 and the second push rod 330 rotate in coordination to move and rotate the push member 120 upward, thereby realizing the auxiliary action of getting up.

[0045] Please refer again Figure 7 In this embodiment, the guide member 310 has a first guide portion 312 and a second guide portion 313. The first guide portion 312 and the second guide portion 313 are sequentially arranged in a direction away from the connection end 311, and the position of the first guide portion 312 is always higher than the connection end 311. The bending portion 321 is hinged to the first guide portion 312. When the guide member 310 is in the first position, the position of the second guide portion 313 is lower than the first guide portion 312. When the guide member 310 is in the second position, the position of the second guide portion 313 is higher than the first guide portion 312.

[0046] Specifically, in the present embodiment, the first guide portion 312 and the second guide portion 313 are arranged at an angle and the first guide portion 312 is always located above the second guide portion 313. When the standing assistance device is not in use and is placed in a retracted state, the first guide portion 312 is always located above the hinge point between the guide member 310 and the driving end. At this time, the first guide portion 312, the second guide portion 313 and the hinge point between the first guide portion 312 and the driving end form a triangle and the first guide portion 312 is higher than the second guide portion 313 and the connecting end 311.

[0047] In this embodiment, the driving mechanism 200 is disposed at one end of the base 110 , and the hinge point between the second push rod 330 and the base 110 is located at an end away from the driving mechanism 200 .

[0048] Under this structure, when the driving end pushes the first guide part 312 to move, since the first guide part 312 and the connecting end 311 are inclined upward, and cooperate with the inclined upward bending structure of the bending part 321, the guide member 310 generates an inclined upward torque under the push, and the bending part 321 applies a reaction force to the guide member 310, so that the guide member 310 can rotate upward with the hinge point of the first guide part 312 and the driving end as the axis under the push, thereby realizing the flipping of the guide member 310, and then driving the second guide part 313 to rotate upward together.

[0049] During the flipping process, the second guide portion 313 moves the second push rod 330, so that the second guide rod changes from a flat state to an inclined state, and rotates together with the first push rod 320 to drive the push member 120 to move, thereby realizing the switching of the first push rod 320 and the second push rod 330 from a flat state to an inclined state.

[0050] When the driving mechanism 200 drives the guide member 310 to rotate to the limit, the guide member 310 is located in the second position. At this time, the position of the second guide portion 313 is higher than the position of the first guide portion 312, the position of the first guide portion 312 is higher than the position of the connecting end 311, and the first push rod 320 and the second push rod 330 are arranged obliquely and crosswise, and the top ends of the first push rod 320 and the second push rod 330 realize support for the pushing member 120.

[0051] As an implementable method, the driving mechanism 200 can also be set at the same end as the hinge point of the second push rod 330 and the base 110. Under this structure, the driving mechanism 200 contracts to drive the guide member 310 to rotate, so that the guide member 310 is transferred from the first position to the second position.

[0052] In this embodiment, the inclined structure formed by the first guide portion 312, the second guide portion 313 and the driving end can form an inclined upward torque with the first push rod 320, so that when the driving end pushes the guide member 310 in the horizontal direction, the first guide portion 312 and the second guide portion 313 can be flipped upward, thereby realizing the action of switching the first push rod 320 and the second push rod 330 from being flat to being rotated, and then the first push rod 320 and the second push rod 330 can be arranged in a flat manner when not in use to reduce the occupied space and reduce the thickness of the standing-up assistance device, and can be smoothly driven when in use to achieve standing-up assistance.

[0053] In this embodiment, a concave structure is provided at the top of one end of the second guide portion 313 close to the first guide portion 312. The end of the second push rod 330 abuts against the concave structure.

[0054] Specifically, in this embodiment, a low concave structure is provided at the connection between the first guide portion 312 and the second guide portion 313, so that the end of the second push rod 330 can be accurately inserted into this position. In addition, the concave structure forms a larger upward inclination angle with the connection section of the first guide portion 312, which can improve the guiding ability when the second push rod 330 is moved to turn the second guide member 310 from a flat state to an inclined state, and further ensure the smoothness of the start of the second push rod 330.

[0055] Specifically, in this embodiment, Figure 7 As shown, the included angle between the first guide portion 312 and the second guide portion 313 is a first obtuse angle, that is, Figure 7 The angle A is greater than or equal to 135° and less than or equal to 155°.

[0056] When the angle of A is greater than 155 degrees, the overall thickness of the standing aid device is likely to be thicker, affecting the use effect of consumers. When the angle of A is 155 degrees, the guide member 310 is easier to deflect, and the initial starting force required by the motor is smaller.

[0057] When the angle of A is less than 135°, the initial starting force required by the motor is greater, the initial starting state takes longer, and the service life of the motor is reduced. When the angle of A is between 135° and 155°, the thickness of the standing assistance device is smaller, and the initial starting force required by the motor is smaller, which is easier to meet. Specifically, in this embodiment, the angle of A is 145°, the thickness of the device is moderate, the initial starting force of the motor is smaller, and the use effect is better.

[0058] Specifically, the guide member 310 in this embodiment is a bent structure, the middle part of the guide member 310 protrudes upward, and the middle part is the first guide part 312. The end of one side of the first guide part 312 extends obliquely downward and is hinged with the driving end, and the other side of the first guide part 312 extends obliquely downward to form the second guide part 313. Under this structure, in order to ensure that the oblique upward torque generated by the first guide part 312 and the driving end can cause the first guide part 312 and the second guide part 313 to rotate, the bottom surface of the first guide part 312 and the bottom surface of the second guide part 313 form an obtuse angle to ensure the conduction of force.

[0059] In this embodiment, a roller 331 is provided at one end of the second push rod 330 away from the base 110. When the guide member 310 is located at the first position, the roller 331 abuts against the inner concave structure. The top surface of the roller 331 abuts against the bottom surface of the push member 120.

[0060] Specifically, when the second push rod 330 and the first push rod 320 rotate from being flat to supporting the push member 120, the end of the first push rod 320 is hinged to the bottom surface of the push member 120, and the push member 120 rotates around the hinge point with the first push rod 320. When the end of the second push rod 330 slides to support the push member 120, the roller 331 contacts the bottom surface of the push member 120, so that when the second push rod 330 supports the push member 120, the roller 331 can push the push member 120 by rolling, so as to realize the flipping action of the push member 120 and reduce the friction force when the second push member 120 pushes the push member 120.

[0061] In this embodiment, a through slot 322 is provided in the first push rod 320, and a first avoidance hole 323 penetrating the bottom of the through slot 322 is provided in the through slot 322. The position of the first avoidance hole 323 is opposite to the position of the guide member 310. The end of the guide member 310 away from the connecting section is the rotating end 314. When the guide member 310 is in the first position, the guide member 310 is located in the first avoidance hole 323.

[0062] In this embodiment, in order to reduce the overall weight of the standing assistance device, the first push rod 320 and the second push rod 330 are both hollow structures. When the guide member 310 is in the first position, that is, the standing assistance device is in a folded state and not in use, the guide member 310 can be retracted into the first avoidance hole 323, thereby reducing the space occupied by the guide member 310 and reducing the overall height and volume of the standing assistance device.

[0063] As an implementable method, the guide member 310, the first push rod 320 and the second push rod 330 can be cross-arranged along the width direction of the push member 120 or the width direction of the standing assistance device. Under this structure, the overall structural strength of the connecting rod assembly 300 is better, and the standing assistance device can withstand a larger load.

[0064] Specifically, in this embodiment, a stopper 315 is provided at one end of the guide member 310 away from the connection end 311. The stopper 315 is an outwardly convex structure extending in the horizontal direction. When the guide member 310 is located at the first position, the stopper 315 abuts against the bottom of the through slot 322.

[0065] When the guide member 310 is located in the first avoidance hole 323, in order to prevent the guide member 310 from rotating at too low an angle, so that the torque formed by the first guide portion 312 and the driving end is in a horizontal direction, resulting in the guide member 310 being unable to smoothly flip upward to toggle the second push rod 330, in this embodiment, a stopper 315 with an outer convex structure is provided at the end of the guide member 310. When the guide member 310 is received in the first avoidance hole 323, the stopper 315 can overlap in the through groove 322, and the end of the stopper 315 abuts against the bottom surface of the through groove 322, so that the torque between the first guide portion 312 and the driving end can be kept tilted upward, thereby ensuring that the guide member 310 can smoothly flip upward when pushed by the driving end.

[0066] In this embodiment, the second end is provided with a connection seat 325. The top surface of the connection seat 325 is connected to the push member 120, and the connection seat 325 is hinged to the first push rod 320. The second push rod 330 is provided with a second avoidance hole 332, and when the guide member 310 is located at the first position, the connection seat 325 is located in the second avoidance hole 332.

[0067] Similarly, when the guide member 310 is located at the first position, that is, when the standing assistance device is idle and not in use, the connecting seat 325 can be retracted into the second avoidance hole 332, thereby further reducing the overall height of the standing assistance device.

[0068] In this embodiment, the standing assistance device further includes a stopper 324. The stopper 324 is disposed on the first push rod 320, and a third avoidance hole 333 is disposed on the second push rod 330. When the guide member 310 is located at the second position, the stopper 324 abuts against the second push rod 330, so that the rotation angle of the first push rod 320 and the second push rod 330 is less than 90 degrees. When the guide member 310 is located at the first position, the stopper 324 is located in the third avoidance hole 333.

[0069] Specifically, the limiting member 324 in this embodiment is a limiting bolt, which is arranged on the first push rod 320 and extends in the horizontal direction. When the first push rod 320 and the second push rod 330 rotate to push the push member 120 to move, after the first push rod 320 and the second push rod 330 rotate to a certain angle, the second push rod 330 abuts against the limiting bolt, thereby preventing the push member 120 from rotating too much and causing the user to be pressed.

[0070] Furthermore, when the guide member 310 is in the first position, that is, the rising assistance device is in a folded state and not in use, the limit bolt can fall into the third avoidance hole 333 on the second push rod 330, thereby preventing the limit screw from abutting against the top of the second push rod 330 when the rising assistance device is folded, causing the first push rod 320 to be unable to fall back to a flat state.

[0071] In this embodiment, a fourth avoidance hole 334 is provided in the second push rod 330. The fourth avoidance hole 334 extends along the length direction of the second push rod 330 and penetrates the second push rod 330 in the vertical direction. The second end is located in the fourth avoidance hole 334.

[0072] Similarly, when the guide member 310 is located at the first position, the first push rod 320 can be retracted into the first avoidance hole 323, so that the first push rod 320 and the second push rod 330 can be folded and stored to further reduce the height of the standing assistance device.

[0073] In addition, a limiting groove is provided on one side of the fourth avoidance hole 334 in the second push rod 330, and the limiting groove and the first avoidance hole 323 are respectively located on both sides of the hinge point between the first push rod 320 and the second push rod 330. When the first push rod 320 and the second push rod 330 are folded and stored, a part of the first push rod 320 is stored in the fourth avoidance hole 334, and the other part is in contact with the bottom of the limiting groove. Under this structure, the first push rod 320 and the second push rod 330 can be prevented from reversing due to excessive rotation angle when folding, thereby ensuring that when the driving end pushes the guide member 310, the first push rod 320 and the second push rod 330 can smoothly move up to support the push member 120.

[0074] In the present embodiment, the driving mechanism 200 includes a driving motor 210, a screw assembly 220 and a connecting shaft. The driving motor 210 is arranged at one end of the base 110. The screw assembly 220 includes a screw rod and a moving part, the screw rod is transmission-connected to the driving motor 210, and the moving part is threadedly matched with the screw rod to move along the extending direction of the screw rod. The connecting shaft is connected to the moving part. There are two connecting rod assemblies 300, and the connecting ends 311 of the two connecting rod assemblies 300 are respectively connected to the two ends of the connecting shaft.

[0075] As an implementable manner, the drive mechanism 200 may also use a drive element such as an electric cylinder or a pneumatic cylinder, and the screw assembly 220 may be replaced by a gear and rack matching structure or any transmission structure that can achieve transmission.

[0076] Specifically, in this embodiment, the driving motor 210 rotates the screw to move the moving part along the extension direction of the screw, and drives the two connecting rod assemblies 300 to move synchronously through the connecting shaft connected to the moving part, thereby realizing multi-point support and multi-point pushing of the pushing part 120, improving the driving stability of the pushing part 120, and improving the structural stability of the standing up assistance device.

[0077] In this embodiment, there are two armrests 130 , and the two armrests 130 are spaced apart and disposed on the top surface of the pushing member 120 .

[0078] Specifically, the armrest 130 in this embodiment is a rotatable and foldable bending structure.

[0079] When using the standing assistance device provided in this embodiment, the standing assistance device can be retracted by folding the first push rod 320, the second push rod 330 and the guide member 310. At this time, the guide member 310 is located in the first position, the standing assistance device is laid flat and the armrest 130 is folded, and the user can sit on the pushing member 120 from the side of the standing assistance device.

[0080] Subsequently, the driving motor 210 is started, the standing-up assisting device is started, and the pushing member 120 rises to assist standing-up.

[0081] The push member 120 rises in two stages. Specifically, in the first stage, the first push rod 320 and the second push rod 330 are both in a nearly flat state, and the angle between the first push rod 320 and the second push rod 330 and the horizontal plane is relatively small. Figure 4 At this time, the overall thickness of the standing-up assisting device is minimal, and the user can easily set it up for use. The guide member 310 is pushed by the driving end, and the guide member 310 rotates around the connecting end 311 under the push of the driving end, and the rotating end 314 swings upward, and the guide member 310 flips over. During the flipping process, the roller 331 at the end of the second push rod 330 is pushed upward, and the roller 331 is moved out of the concave structure and lifted to a certain height under the push. Figure 5 , so that the second push rod 330 changes from a nearly flat state to a state with a larger angle with the horizontal plane, thereby reducing the initial driving force of the standing assisting device from the folded state to the unfolded state. After rolling off the guide member 310, the second stage begins.

[0082] In the second stage, the first push rod 320 and the second push rod 330 are both in an inclined state under the action of the guide member 310. Under the continuous push of the driving end, the push member 120 rotates around the hinge point with the first push rod 320, and the second push rod 330 pushes and supports the other end of the push member 120 with the cooperation of the roller 331. Figure 6 , thereby realizing the auxiliary standing up function of the standing up auxiliary device.

[0083] Moreover, in the present embodiment, the guide member 310, the first push rod 320 and the second push rod 330 realize a mutually fitting structure through the first avoidance hole 323, the second avoidance hole 332, the third avoidance hole 333 and the fourth avoidance hole 334, thereby further reducing the overall thickness of the standing up assistance device in the folded state, making it convenient to place it under the body when needed.

[0084] It should be noted here that, in this embodiment, an anti-turnover member 121 and a guide groove 122 are provided on a surface of the pushing member 120 close to the base 110 .

[0085] Among them, the anti-turnover member 121 in this embodiment has a slide groove, which is arranged parallel to the push member 120, and the rotating shaft of the roller 331 is inserted in the slide groove. When the second push rod 330 pushes and supports the other end of the push member 120 with the cooperation of the roller 331, the rotating shaft slides in the slide groove. In addition, when the guide member is located at the first position and the second position, the rotating shaft is respectively located at the two ends of the slide groove, and the rotating shaft is always inserted in the slide groove. Under this structure, it can be ensured that the push member 120 can only rotate without turning over under the push of the first push rod 320 and the second push rod 330, so as to avoid the push member 120 turning over when the rotation speed is too fast or the standing-up assisting device is tilted, which affects the use.

[0086] In addition, the guide groove 122 in this embodiment is adapted to the roller 331. When the second push rod 330 pushes and supports the pushing member 120 through the roller 331, the roller 331 continues to contact the guide groove 122, so that the moving trajectory of the roller 331 remains at the preset trajectory, thereby preventing the roller 331 from deviating during the movement.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for assisting people in getting up, It is characterized in that include: A base assembly (100), a drive mechanism (200) and a connecting rod assembly (300); The base assembly (100) comprises a base (110) and a pusher (120), wherein the pusher (120) is disposed above the base (110); The driving mechanism (200) is arranged in the base (110), and the driving end of the driving mechanism (200) moves in a horizontal direction; The connecting rod assembly (300) is arranged between the base (110) and the pushing member (120), and the connecting rod assembly (300) comprises a guide member (310), a first push rod (320) and a second push rod (330). One end of the guide member (310) is a connecting end (311) and is hinged to the driving end of the driving mechanism (200). The driving mechanism (200) pushes the guide member (310) to move and causes the other end of the guide member (310) to swing upward. The first push rod (320) has a first end and a second end. The first end is provided with a bending portion (321), the bending portion (321) is inclined upward and extends in a direction away from the second end, the bending portion (321) is hinged to the guide member (310), the second end is hinged to the bottom surface of the pushing member (120), the second push rod (330) is cross-arranged with the first push rod (320) and is hinged at the intersection, one end of the second push rod (330) is slidably matched with the pushing member (120), and the other end of the second push rod (330) is hinged to the base (110); When the driving mechanism (200) is in a retracted state, the guide member (310) is located at a first position, and one end of the second push rod (330) is located at the top of the guide member (310) and fits with the top surface of the guide member (310); When the driving mechanism (200) is in an extended state, the guide member (310) is located at a second position, and one end of the second push rod (330) is separated from the guide member (310).

2. The standing assistance device according to claim 1, characterized in that: The guide member (310) comprises a first guide portion (312) and a second guide portion (313); The first guide portion (312) and the second guide portion (313) are arranged in sequence along a direction away from the connecting end (311), and the position of the first guide portion (312) is always higher than the connecting end (311); The bending portion (321) is hinged to the first guide portion (312); When the guide member (310) is located at the first position, the position of the second guide portion (313) is lower than that of the first guide portion (312); When the guide member (310) is located at the second position, the second guide portion (313) is located at a higher position than the first guide portion (312).

3. The standing assistance device according to claim 2, characterized in that: A concave structure is provided at the top of one end of the second guide portion (313) close to the first guide portion (312); When the guide member (310) is located at the first position, the end of the second push rod (330) abuts against the concave structure.

4. The standing assistance device according to claim 3, characterized in that: The included angle between the first guide portion (312) and the second guide portion (313) is a first obtuse angle; The angle of the first obtuse angle is greater than or equal to 135° and less than or equal to 155°.

5. The standing assistance device according to claim 4, characterized in that: A roller (331) is provided at one end of the second push rod (330) away from the base (110); When the guide member (310) is located at the first position, the roller (331) abuts against the concave structure; The top surface of the roller (331) abuts against the bottom surface of the pushing member (120).

6. The standing assistance device according to claim 2, characterized in that: A through slot (322) is provided in the first push rod (320), and a first avoidance hole (323) penetrating the bottom of the through slot (322) is provided in the through slot (322); The position of the first avoidance hole (323) is opposite to the position of the guide member (310); The end of the guide member (310) away from the connecting end (311) is a rotating end (314); when the guide member (310) is located at the first position, the guide member (310) is located in the first avoidance hole (323).

7. The standing assistance device according to claim 6, characterized in that: The rotating end (314) is provided with a limiting portion (315); The limiting portion (315) is an outwardly protruding structure extending in a direction away from the connecting end (311); When the guide member (310) is located at the first position, the limiting portion (315) abuts against the bottom of the through slot (322).

8. The standing assistance device according to claim 2, characterized in that: The second end is provided with a connecting seat (325); The top surface of the connecting seat (325) is connected to the pushing member (120), and the connecting seat (325) is hinged to the first push rod (320); The second push rod (330) is provided with a second avoidance hole (332), and when the guide member (310) is located at the first position, the connecting seat (325) is located in the second avoidance hole (332).

9. The standing assistance device according to claim 2, characterized in that: The standing-up assisting device further comprises a limiting member (324); The limiting member (324) is provided on the first push rod (320), and the second push rod (330) is provided with a third avoidance hole (333); When the guide member (310) is located at the second position, the limiting member (324) abuts against the second push rod (330); When the guide member (310) is located at the first position, the limiting member (324) is located in the third avoidance hole (333).

10. The standing assistance device according to claim 1, characterized in that: A fourth avoidance hole (334) is provided in the second push rod (330); The fourth avoidance hole (334) extends along the length direction of the second push rod (330) and penetrates the second push rod (330) in the vertical direction; The second end is located in the fourth avoidance hole (334).

11. The standing assistance device according to any one of claims 1 to 10, characterized in that: The driving mechanism (200) comprises a driving motor (210), a screw assembly (220) and a connecting shaft; The driving motor (210) is disposed at one end of the base (110); The screw assembly (220) comprises a screw and a moving part, the screw is drivingly connected to the drive motor (210), the moving part is threadably matched with the screw and is limited by the base (110) so that the moving part moves along the extension direction of the screw; The connecting shaft is connected to the moving member; There are two connecting rod assemblies (300), and the connecting ends (311) of the two connecting rod assemblies (300) are respectively connected to the two ends of the connecting shaft.

12. The standing assistance device according to claim 11, characterized in that: The base assembly (100) further includes an armrest (130); There are two handrails (130), and the two handrails (130) are arranged at intervals on the top surface of the pushing member (120).

Images