Walking aid, sitting and standing rehabilitation training all-in-one machine

Abstract

The invention relates to the technical field of walking aid assistive devices, and provides a walking aid sitting rehabilitation training all-in-one machine, a side frame assembly comprises a rear wheel rod, and the rear wheel rod is rotatably provided with a moving wheel; the backrest rod is located above the rear wheel rod, and a connecting mechanism is arranged between the backrest rod and the rear wheel rod; the backrest rod fixing frame is provided with a walking aid rod, the walking aid rod is bent and extends downwards, and the bottom end of the walking aid rod is sleeved with an anti-skid foot pad; one end of the chair seat rod is rotationally connected to the connecting mechanism, and a turnover mechanism is arranged at the end, away from the connecting mechanism, of the chair seat rod; a seat cushion is arranged between the two seat rods arranged on the two side frame assemblies respectively. The front wheel rod is rotationally connected to the seat rod through a turnover mechanism; universal wheels are rotationally installed on the front wheel rods, and sliding supporting mechanisms are arranged between the front wheel rods and the rear wheel rods. On the basis, the wheelchair and the walking aid can be quickly switched, so that the use requirements of the patient under different conditions are met.

Description

Technical Field

[0001] This application relates to the field of assistive technology, and in particular to an integrated machine for assistive sitting and rehabilitation training. Background Technology

[0002] Walking aids and wheelchairs are two core types of mobility aids commonly used by leg patients during postoperative rehabilitation. Wheelchairs are mainly used for patients to travel long distances and can also be used for sitting and standing rehabilitation training. They are mostly used in the early and middle stages of postoperative rehabilitation. Walking aids are mainly used for short-distance walking assistance during the rehabilitation period to prevent muscle atrophy. They are mostly used in the middle and late stages of postoperative rehabilitation.

[0003] It is known that leg patients often need to use walking aids and wheelchairs during postoperative rehabilitation. However, most walking aids and wheelchairs on the market are separate devices, requiring patients to purchase both. This presents disadvantages such as taking up space, inconvenient storage, and the inability to easily switch between them during travel, thus limiting their use. Therefore, providing an integrated device that allows for quick switching between wheelchairs and walking aids has become one of the urgent problems that the industry needs to solve. Summary of the Invention

[0004] Based on this, this application provides an integrated rehabilitation training machine for sitting and walking, which can quickly switch between wheelchair and walking aid to adapt to the patient's needs in different situations.

[0005] The technical solution of the walking and sitting rehabilitation training integrated machine provided in this application is as follows:

[0006] A walking and sitting rehabilitation training machine includes two interconnected side frame assemblies; the side frame assemblies include:

[0007] The rear wheel rod is rotatably mounted with movable wheels;

[0008] The backrest bar is located above the rear wheel bar, and a connecting mechanism is provided between the backrest bar and the rear wheel bar; the backrest bar fixing frame is equipped with a walking pole, which bends downward and extends downward, and the bottom end of the walking pole is fitted with an anti-slip pad;

[0009] The chair seat post has one end rotatably connected to the connecting mechanism, and the end of the chair seat post away from the connecting mechanism is provided with a flipping mechanism; a seat cushion is provided between the two chair seat posts located in the two sets of side frame assemblies;

[0010] The front wheel rod is rotatably connected to the seat rod via a flipping mechanism; the front wheel rod is rotatably equipped with casters, and a sliding support mechanism is provided between the front wheel rod and the rear wheel rod.

[0011] In the seated assist position, the sliding support mechanism is in its maximum extended state to support and position the front and rear wheel rods; at this time, the moving wheels and swivel wheels are together against the ground foundation, and the walking pole can be suspended in the air; in the walking assist position, the seat rod and the front wheel rod rotate to fit against the backrest rod and are in a folded state, at which time the walking pole and the moving wheels can be together against the ground foundation.

[0012] Optionally, the connecting mechanism includes a steel pipe sleeve and a rotating plate frame. The steel pipe sleeve is fixedly installed between the rear wheel rod and the backrest rod. The rotating plate frame is welded to the outer periphery of the steel pipe sleeve, and the outer periphery of the rotating plate frame is partially arc-shaped. One end of the seat rod is rotatably connected to the rotating plate frame, and an arc plate is fixedly sleeved on the outer periphery of the seat rod. The inner arc surface of the arc plate matches and fits against the outer arc surface of the rotating plate frame.

[0013] Optionally, the flipping mechanism includes a flipping seat fixed to the end of the seat rod and a rotating bracket fixed to the end of the front wheel rod. The flipping seat has a flipping area for accommodating the front wheel rod, and the inner wall of the flipping area has a rotating groove. The rotating bracket is rotatably embedded in the rotating groove. The front wheel rod can abut against the two opposite inner walls of the flipping area in both the sitting assistance state and the walking assistance state.

[0014] Optionally, the surface of the rotating card seat is provided with a movable groove, and the inner wall of the movable groove is provided with a guide slide column; a limiting plate is movably installed inside the movable groove, and the limiting plate is provided with a guide slide groove that is adapted to the sliding of the guide slide column, so as to realize the circumferential linkage between the limiting plate and the rotating card seat.

[0015] The flip seat is movably fitted with a pressing component, which is coaxially arranged with the rotating base; a first spring is provided between the limiting plate and the inner wall of the movable groove, which is used to force the limiting plate to normally press against the pressing component and force the pressing component to move outward; the limiting plate is partially provided with a limiting slot, and a positioning post is fixed on the inner wall of the flip area near the pressing component. In the sitting assisted state, the positioning post is matched and locked in the limiting slot.

[0016] Optionally, a handle is rotatably mounted on the top of the backrest rod, a positioning pin is fixedly connected to the backrest rod, the handle is provided with a rotating waist hole, the positioning pin passes through the rotating waist hole and is rotatably set in the rotating waist hole; an elastic locking mechanism is provided between the handle and the backrest rod to realize the rotational positioning of the handle.

[0017] The elastic locking mechanism includes a fixed base plate fixed to the inside of the handle bar, a linkage locking seat movably inserted into the fixed base plate, and a second spring disposed between the linkage locking seat and the fixed base plate. The linkage locking seat has two symmetrically arranged locking slots. When the linkage locking seat is in the position where the locking slots and the positioning pins are directly opposite each other, the second spring can force the locking slots and the positioning pins to match and lock in a limited position.

[0018] A sliding component is slidably installed on the inner side of the handle bar. The sliding direction of the sliding component is set in the same direction as the axis of the handle bar. The sliding component is connected to the linkage seat by a pull rope. A grip is rotatably installed at the end of the handle bar away from the backrest bar. A guide structure is provided between the grip and the sliding component to realize the sliding component moving away from the backrest bar.

[0019] Optionally, the handle bar has a first groove, the extension direction of the first groove is the same as the axial direction of the handle bar; a pin is fixed on the outer peripheral surface of the sliding member, the pin passes through the first groove and is slidably disposed in the first groove; the guide structure includes a spiral groove disposed on the inner peripheral surface of the grip, the spiral groove extends spirally along the axial direction of the grip; the end of the pin passes through the inner side of the spiral groove.

[0020] Optionally, the sliding support mechanism includes a sliding sleeve vertically slidably disposed on the rear wheel rod, a first support rod rotatably connected to the sliding sleeve, a fixed sleeve fixedly disposed on the front wheel rod, and a second support rod rotatably connected to the fixed sleeve; a guide pin is fixed to the side of the first support rod, and a second slide groove is provided on the second support rod, with the guide pin passing through the second slide groove and slidably disposed in the second slide groove;

[0021] The second slide includes a sliding area and a limiting area connected thereto. The limiting area is located on the side end of the second slide near the first support rod, and the limiting area is set at an angle to the sliding area. In the seated assisted state, the guide pin abuts against the side end face of the limiting area, at which time the first support rod and the second support rod are in extreme positions far apart from each other.

[0022] Optionally, the walking pole is fixedly connected to a side frame plate, and the side frame plate is provided with an auxiliary mechanism for assisting in fixing the sliding support mechanism; wherein, the auxiliary mechanism includes a movable insert, a limiting sleeve and a sliding rod, the movable insert is movably inserted into the side frame plate, and the limiting sleeve is fixed to the end of the movable insert; the side of the limiting sleeve away from the movable insert is provided with a receiving groove for matching and accommodating the guide pin.

[0023] The sliding rod is fixed to the end of the movable insert away from the limiting sleeve, and the side frame plate is fixedly mounted with a suspension plate for connecting the sliding rod; a third spring is provided between the movable insert and the suspension plate, and the third spring is used to force the movable insert to move normally towards the sliding support mechanism;

[0024] The side frame plate is rotatably mounted with a hand crank, and there is a linkage structure between the hand crank and the movable insert. When the hand crank is activated, it can drive the movable insert to move away from the sliding support mechanism, so as to release the limit lock between the limit sleeve and the guide pin.

[0025] Optionally, the linkage structure includes a linkage plate seat fixedly mounted on the movable insert and a pushing component fixedly mounted on the hand crank. The side edge of the linkage plate seat is provided with a pushing groove, and the side edge of the pushing component is provided with a guide portion facing the pushing groove. When the hand crank is rotated toward the linkage plate seat, the guide portion can abut against the inner wall of the pushing groove and force the linkage plate seat to gradually move away from the sliding support mechanism.

[0026] Optionally, a brake component is movably connected to the hand crank, and the brake component has a fourth sliding groove. The brake component is slidably fitted onto the movable insert through the fourth sliding groove, and the direction of movement of the brake component is the same as the extension direction of the side frame plate. When the hand crank is rotated toward the linkage plate seat, the brake component can abut against the moving wheel.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. One method of using the integrated machine of this application involves rotating the seat post downwards to its limit position while simultaneously flipping the front wheel post outwards to its limit position, thus deploying the sliding support mechanism. The sliding support mechanism provides support and fixation for the front and rear wheel posts, keeping all structural members in the deployed state. At this time, the casters and swivel casters are grounded, while the walking poles are suspended, thereby placing the integrated machine in a sitting assistance state. In this state, the patient can sit stably on the seat cushion, allowing the integrated machine to be used as a wheelchair and also as an assistive device for sitting training.

[0029] 2. Another way to use the integrated device of this application is by forcing the front wheel pole to rotate and retract towards the seat pole, and simultaneously forcing the seat pole to rotate and retract towards the backrest pole. At this time, the casters can be retracted upwards, and the integrated device is supported on the ground by the casters and the walking pole, thus entering a walking assistance state. In this state, the patient can use the walking pole for support and assisted walking, enabling the integrated device to be used as a walking aid. Based on this, the integrated device of this application can quickly switch between wheelchair and walking aid modes to adapt to the patient's needs in different situations.

[0030] 3. When the seat post is rotated downwards to its limit position, the contact area between the seat post and the rotating frame is increased by the abutting fit between the arc plate and the rotating frame, and the inner arc surface of the arc plate matches and abuts against the outer arc surface of the rotating frame, thereby improving the support strength and ensuring the safety of the patient when sitting on the seat cushion.

[0031] 4. By rotating the mounting bracket and embedding it within the rotating groove, the front wheel rod can move within the flipping area when the mounting bracket rotates circumferentially around its central axis, thus enabling the front wheel rod to be flipped for storage and unfolded for use. It should be noted that the limiting plate within the rotating bracket's movable groove, through the cooperation of a guide slide post and a guide groove, can move circumferentially with the rotating bracket; that is, the limiting plate can rotate along with the front wheel rod. When the front wheel rod is rotated under force, causing the positioning groove of the limiting plate to be directly opposite the positioning post on the inner wall of the flipping area, the limiting plate, under the action of the first spring, will cause the positioning post to engage in the limiting groove, thus achieving rotational positioning and maintaining the front wheel rod, improving safety. Furthermore, by forcing the pressing component to move inward, the pressing component can push the limiting plate inward, causing the positioning post to disengage from the limiting groove, thus enabling the front wheel rod to be smoothly stored.

[0032] 5. When the integrated machine is in the sitting assistance mode, family members can easily move the machine by using the handle and grip piece to facilitate patient care. This application allows the handle to be rotated and mounted on the sliding component. When the integrated machine switches to the walking assistance mode, family members or patients can grasp the grip piece and rotate it circumferentially. After rotation, the grip piece, through a guide structure, can move the sliding component away from the backrest. A pull rope can then move the linkage seat upwards, causing the positioning pin to disengage from the locking slot. Subsequently, family members or patients can rotate the handle piece 180° so that the other locking slot of the linkage seat aligns with the positioning pin. At this point, the linkage seat, under the elastic force of the second spring, engages with the positioning pin for positioning. The handle and grip piece rotate to the inside of the integrated machine, making it easier for the patient to grip the grip piece for support and assisted walking.

[0033] 6. When the all-in-one machine is in the sitting assistance mode, the first and second support rods are extended to a parallel state. At this time, the guide pin abuts against the side end face of the limiting area, and the sliding support mechanism can support and fix the front wheel rod and the rear wheel rod. When it is necessary to switch the all-in-one machine to the walking assistance mode, force the front wheel rod and the seat rod to move closer together, and flip them over for storage, the guide pin can move along the sliding area, and at the same time the sliding sleeve can move vertically along the rear wheel rod to smoothly realize the switching and use of the all-in-one machine.

[0034] 7. When the integrated machine is in the sitting assistance mode, the portion of the guide pin exposed in the second sliding groove can match the receiving groove inserted into the limiting sleeve, allowing the limiting sleeve to play an auxiliary fixing role in the sliding support mechanism, improving the safety of the patient when sitting. When it is necessary to switch the integrated machine to the walking assistance mode, by turning the hand crank handle and moving it towards the linkage plate seat, the guide part of the pushing component on the hand crank handle can abut against the inner wall of the pushing groove, forcing the linkage plate seat to gradually move away from the guide pin, ultimately allowing the guide pin to smoothly disengage from the receiving groove, so that the front wheel rod and seat rod can be flipped and stored normally.

[0035] 8. By setting up a braking component, when family members or patients switch the working state of the integrated machine, they can keep the hand crank in the position of moving it towards the linkage plate seat, so that the braking component can be kept pressed against the rotating wheel, thereby realizing the braking operation of the rotating wheel, which can facilitate the switching of the working state of the integrated machine. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0037] Figure 2 This is an exploded view of the rear wheel rod, backrest rod, seat rod, and connecting mechanism in this embodiment;

[0038] Figure 3 This is a half-sectional view of the flip seat in this embodiment;

[0039] Figure 4 This is a schematic diagram of the structure of the flip-up seat and the pressing component in this embodiment;

[0040] Figure 5 This is a schematic diagram of the pressing component in this embodiment;

[0041] Figure 6 This is a schematic diagram of the rotating card holder in this embodiment;

[0042] Figure 7 This is a schematic diagram of the sliding support mechanism in this embodiment;

[0043] Figure 8 This is a schematic diagram of the sliding support mechanism and auxiliary mechanism in this embodiment;

[0044] Figure 9 This is a schematic diagram of the auxiliary mechanism in this embodiment;

[0045] Figure 10 yes Figure 8 Enlarged view of point A in the middle;

[0046] Figure 11 This is an exploded view of the handle bar and backrest bar in this embodiment;

[0047] Figure 12 This is a half-sectional structural diagram of the handle rod and backrest rod in this embodiment, mainly illustrating the specific structure of the elastic locking mechanism;

[0048] Figure 13 This is a half-section structural diagram of the handle rod and grip in this embodiment.

[0049] Explanation of reference numerals in the attached drawings: 1. Rear wheel rod; 11. Transfer wheel; 12. Vertical slide groove; 2. Backrest rod; 21. Walking pole; 211. Anti-slip foot pad; 22. Backrest cushion; 23. Side frame plate; 231. Suspension plate; 24. Hand crank lever; 25. Pushing component; 251. Guide part; 26. Brake component; 261. Fourth slide groove; 27. Positioning pin;

[0050] 3. Seat post; 31. Rotating shaft; 32. Arc plate; 33. Seat cushion; 4. Front wheel post; 41. Mounting bracket; 42. Casters; 5. Connecting mechanism; 51. Steel pipe sleeve; 52. Rotating plate frame; 521. Limiting stop; 53. Horizontal steel pipe;

[0051] 6. Flipping mechanism; 61. Flipping seat; 611. Flipping area; 612. Rotating groove; 613. Positioning post; 62. Rotating seat; 621. Movable groove; 622. Guide slide column; 63. Pressing component; 631. Side cut; 64. Limiting plate; 641. Guide slide groove; 642. Limiting slot; 65. First spring;

[0052] 7. Sliding support mechanism; 71. Sliding sleeve; 72. First support rod; 721. Guide pin; 73. Fixed sleeve; 74. Second support rod; 741. Second slide groove; 742. Sliding area; 743. Limiting area; 8. Auxiliary mechanism; 81. Movable insert; 82. Limiting sleeve; 821. Receiving groove; 83. Sliding rod; 84. Third spring; 85. Linkage plate base; 851. Push groove;

[0053] 9. Handle bar; 91. Rotating waist hole; 92. Elastic locking mechanism; 921. Fixed base plate; 922. Linkage bracket; 9221. Locking groove; 923. Second spring; 924. Rectangular guide rod; 93. Handle piece; 931. Spiral groove; 94. Sliding component; 941. Pin; 95. First slide groove; 96. Pull rope. Detailed Implementation

[0054] The following is in conjunction with the appendix Figure 1 -Appendix Figure 13 This application will be described in further detail.

[0055] This application discloses an integrated machine for assisting walking and sitting rehabilitation training.

[0056] Reference Figure 1 A walking and sitting rehabilitation training integrated machine includes two sets of side frame assemblies that are connected to each other; in this embodiment, the two sets of side frame assemblies have the same specific structure and are arranged in a mirror orientation. The following is an introduction to a single set of side frame assemblies.

[0057] The side frame assembly includes a rear wheel rod 1, a backrest rod 2, a seat rod 3, and a front wheel rod 4. The rear wheel rod 1 is vertically arranged, and a movable wheel 11 is rotatably mounted at the bottom end of the rear wheel rod 1. The movable wheel 11 can rest against the ground foundation and provide support. A connecting mechanism 5 is provided at the top end of the rear wheel rod 1, and the backrest rod 2 is fixedly connected to the rear wheel rod 1 through the connecting mechanism 5. A backrest cushion 22 is provided between the two backrest rods 2 of the two side frame assemblies. See details. Figure 2 The connecting mechanism 5 includes a steel pipe sleeve 51 and a rotating plate frame 52. The steel pipe sleeve 51 is fixedly installed between the rear wheel rod 1 and the backrest rod 2. The rotating plate frame 52 is welded to the outer periphery of the steel pipe sleeve 51 for the seat rod 3 to be rotatably installed. In addition, the two steel pipe sleeves 51, which are respectively located in the two sets of side frame assemblies, are fixed together by welding with a horizontal steel pipe 53 to realize the mutual connection and fixation of the two sets of side frame assemblies.

[0058] One end of the seat post 3 is rotatably connected to the rotating frame 52 via a rotating shaft 31. An arc plate 32 is fixedly fitted onto the outer circumferential surface of the seat post 3, and the arc plate 32 has an arc-shaped inner arc surface. In this embodiment, the outer circumferential surface of the rotating frame 52 is partially arc-shaped, and the inner arc surface of the arc plate 32 can match and fit against the outer arc surface of the rotating frame 52, which helps to increase the contact area between the seat post 3 and the rotating frame 52 and improve the structural stability between the seat post 3 and the rotating frame 52. In addition, an integrally formed limiting stop 521 is provided on the inner side of the rotating frame 52. The limiting stop 521 is close to the bottom of the rotating frame 52 and can limit the rotation of the seat post 3. When the seat post 3 is flipped downwards to abut against the limiting stop 521, the seat post 3 can be in a near-horizontal position.

[0059] Back Figure 1 A seat cushion 33 is provided between the two seat rods 3 located in the two sets of side frame assemblies; a flipping mechanism 6 is provided at the end of the seat rod 3 away from the rotating plate frame 52, and the front wheel rod 4 is rotatably connected to the seat rod 3 through the flipping mechanism 6. See details. Figure 3 The flipping mechanism 6 includes a flipping seat 61 fixed to the end of the seat rod 3 and a rotating bracket 62 fixed to the end of the front wheel rod 4. The flipping seat 61 is arc-shaped, and a flipping area 611 is provided on the side of the flipping seat 61 away from the seat rod 3. A rotating groove 612 is provided on the inner wall of the flipping area 611. The inner diameter of the rotating groove 612 is equal to the outer diameter of the rotating bracket 62, so that the rotating bracket 62 can be rotatably embedded in the rotating groove 612, and the front wheel rod 4 can move within the flipping area 611.

[0060] Back Figure 1A mounting bracket 41 is fixed to the end of the front wheel rod 4 away from the seat rod 3. The mounting bracket 41 is rotatably mounted with a universal wheel 42. In this embodiment, when the seat rod 3 rotates downward to the limit position against the limiting stop 521, and the front wheel rod 4 flips outward to the limit position, the moving wheel 11 and the universal wheel 42 can jointly touch the ground foundation. At this time, the integrated machine is in a sitting assistance state and can be used as a wheelchair for patients. In addition, a walking rod 21 is fixedly mounted on the side of the backrest rod 2. In this embodiment, the walking rod 21 is inverted "L" shape. The bottom end of the walking rod 21 bends downward and extends, and is fixedly fitted with an anti-slip foot pad 211. When the seat rod 3 and the front wheel rod 4 rotate to fit against the backrest rod 2 and are in a folded state, the universal wheel 42 is retracted upward. At this time, the walking rod 21 and the moving wheel 11 can jointly touch the ground foundation. The integrated machine is in a walking assistance state and can be used as a walking aid for patients.

[0061] Reference Figure 4 It should be noted that the front wheel rod 4 can abut against the two opposing inner walls of the flipping area 611 in both the sitting assistance state and the walking assistance state, thereby enhancing the structural strength and stability between the front wheel rod 4 and the seat rod 3. Additionally, the side of the flipping seat 61 is provided with a pressing groove communicating with the rotating groove 612, and a pressing component 63 is movably embedded in the pressing groove. The pressing component 63 and the rotating bracket 62 remain coaxial; (See also...) Figure 5 The side of the pressing member 63 is formed by cutting a side cut 631. The shape of the pressing groove is adapted to the shape of the pressing member 63 after cutting, which can restrict the rotation of the pressing member 63, so that the pressing member 63 can only move along the axial direction of the rotating groove 612.

[0062] Reference Figure 6 The rotating card holder 62 has a movable groove 621 on its surface near the pressing component 63. The inner wall of the movable groove 621 is integrally formed with a guide slide post 622. A limiting plate 64 is movably installed inside the movable groove 621. The limiting plate 64 has a guide slide groove 641, which slides and adapts to the guide slide post 622. The limiting plate 64 is slidably locked onto the guide slide post 622 through the guide slide groove 641, which allows the limiting plate 64 to move together with the rotating card holder 62. At the same time, the limiting plate 64 can also move along the axial direction of the movable groove 621, towards / away from the inner bottom wall of the movable groove 621.

[0063] Simultaneously refer to Figure 4It should be noted that a first spring 65 is provided inside the movable groove 621. One end of the first spring 65 is pressed against the inner wall of the movable groove 621, and the other end of the first spring 65 is pressed against the limiting plate 64. The first spring 65 can always generate an elastic force acting on the limiting plate 64, thereby forcing the limiting plate 64 to move outward and abut against the pressing component 63, and causing the pressing component 63 to also move outward. Finally, the pressing component 63 can be normally exposed in the flip seat 61 for family members or patients to press smoothly.

[0064] Reference Figure 6 A limiting groove 642 is partially formed on the outer periphery of the limiting plate 64, and the limiting groove 642 is semi-circular; at the same time, refer to Figure 4 A positioning post 613 is fixed to the inner wall of the flipping area 611 near the pressing component 63. The positioning post 613 can be located outside the side cut 631 of the pressing component 63. The shape of the positioning post 613 is adapted to the shape of the limiting slot 642. In the sitting assistance state, that is, when the front wheel rod 4 is flipped outward to abut against the inner wall of the flipping area 611, the limiting plate 64 can follow the rotating seat 62 and rotate to the position where the positioning post 613 and the limiting slot 642 are directly opposite each other. At this time, the limiting plate 64 can move outward under the elastic force of the first spring 65, so that the positioning post 613 is matched and inserted into the limiting slot 642, which plays a role in stable positioning and further enhances the connection strength and stability between the front wheel rod 4 and the seat rod 3, ensuring the safety of the patient when using the integrated machine.

[0065] When a family member or patient needs to switch the integrated machine to the walking assistance mode, force is applied to the pressing component 63 to move it inward, so that the pressing component 63 can eventually abut against the guide slide column 622. During this process, the limiting plate 64 is forced to move inward, which can disengage the positioning column 613 from the limiting slot 642. In this state, by forcing the front wheel rod 4 to rotate towards the seat rod 3, the limiting plate can rotate with the rotating base 62. At this time, the positioning column 613 can be misaligned with the limiting slot 642, and there will be no accidental jamming.

[0066] Back Figure 1 A sliding support mechanism 7 is provided between the front wheel link 4 and the rear wheel link 1; refer to Figure 7In this embodiment, the sliding support mechanism 7 includes a sliding sleeve 71, a first support rod 72, a fixed sleeve 73, and a second support rod 74. The rear wheel rod 1 has a vertical groove 12, and the sliding sleeve 71 is slidably connected to the vertical groove 12, allowing the sliding sleeve 71 to slide vertically along the axis of the rear wheel rod 1. The first support rod 72 is rotatably connected to the sliding sleeve 71. The fixed sleeve 73 is fitted onto and fixedly connected to the front wheel rod 4, and the second support rod 74 is rotatably connected to the fixed sleeve 73. A guide pin 721 is fixed to the side of the first support rod 72, and the second support rod 74 has a second groove 741. The guide pin 721 can pass through and movably position itself in the second groove 741 to achieve a sliding connection between the first support rod 72 and the second support rod 74.

[0067] It should be noted that the second slide groove 741 in this embodiment includes a sliding region 742 and a limiting region 743 connected thereto. The limiting region 743 is located on one side of the second slide groove 741 near the first support rod 72. The extending direction of the sliding region 742 is the same as the extending direction of the second support rod 74, while the limiting region 743 is set at an angle to the sliding region 742, specifically, the limiting region 743 is inclined upward in a direction away from the sliding region 742. In the seated assisted state, the guide pin 721 can abut against the side end face of the limiting region 743 away from the sliding region 742. At this time, the first support rod 72 and the second support rod 74 are in a mutually distant extreme position, which can play a role in connecting and fixing the front wheel rod 4 and the rear wheel rod 1, and the connection strength is high, which can greatly improve the safety of the patient when using the integrated machine.

[0068] Reference Figure 8 The walking pole 21 is located outside the sliding support mechanism 7. A side frame plate 23 is fixedly connected to the side of the walking pole 21. The side frame plate 23 is provided with an auxiliary mechanism 8 for assisting in fixing the sliding support mechanism 7. Specifically, the auxiliary mechanism 8 includes a movable insert 81, a limiting sleeve 82, and a sliding rod 83. The movable insert 81 is movably inserted into the side frame plate 23, while the limiting sleeve 82 is fixed to one end of the movable insert 81. (See also...) Figure 9 The limiting sleeve 82 has a receiving groove 821 on the side away from the movable insert 81. The inner diameter of the receiving groove 821 is equal to the outer diameter of the guide pin 721, which allows the guide pin 721 to be matched and inserted.

[0069] Reference Figure 8 , Figure 9A suspension plate 231 is fixedly mounted on the side of the side frame plate 23 away from the sliding support mechanism 7. A sliding rod 83 is movably inserted into the suspension plate 231 and is fixedly connected to the end of the movable insert 81 away from the limiting sleeve 82. A third spring 84 is sleeved on the outside of the sliding rod 83. One end of the third spring 84 abuts against the movable insert 81, and the other end of the third spring 84 abuts against the suspension plate 231. The third spring 84 can always generate an elastic force acting on the movable insert 81, thereby forcing the movable insert 81 and the limiting sleeve 82 to move normally towards the sliding support mechanism 7. Finally, the end of the guide pin 721 exposed in the second slide groove 741 can be inserted into the receiving groove 821 to limit the relative movement between the first support rod 72 and the second support rod 74, thereby achieving an auxiliary fixing effect on the sliding support mechanism 7.

[0070] Back Figure 8 A hand crank 24 is rotatably mounted on the side of the side frame plate 23. A linkage structure is provided between the hand crank 24 and the movable insert 81, which can drive the movable insert 81 to move away from the sliding support mechanism 7 when the hand crank 24 is activated, so as to release the limiting lock between the limiting sleeve 82 and the guide pin.

[0071] Specific reference Figure 10 The linkage structure includes a linkage plate base 85 and a pushing component 25. The linkage plate base 85 is fixed at the connection position between the movable insert 81 and the sliding rod 83, and the linkage plate base 85 is located on the side of the side frame plate 23 away from the sliding support mechanism 7. A pushing groove 851 is provided on the side edge of the linkage plate base 85. The pushing component 25 is fixed to the hand crank 24 and located outside the linkage plate base 85. A guide portion 251 is provided on the side edge of the pushing component 25 near the linkage plate base 85, and the guide portion 251 is directly opposite the pushing groove 851. In addition, in order to enable the hand crank 24 to have a rotation holding effect, this embodiment can provide a damping layer or a tenon structure on the surface of the pushing component 25. The structure can be selected and set according to needs, which will not be elaborated here.

[0072] Based on this, when it is necessary to switch the integrated machine from sitting assistance mode to walking assistance mode, by forcing the hand crank 24 to rotate towards the linkage plate seat 85, the guide part 251 can abut against the push groove 851, and force the linkage plate seat 85 to gradually move away from the sliding support mechanism 7, thereby driving the limiting sleeve 82 to smoothly disengage from the guide pin. Then, by applying force to the pressing part 63 to move the limiting plate 64 inward, the limiting plate 64 and the positioning post 613 are released from the limiting lock, and the family member or patient can rotate the front wheel rod 4 to rotate towards the seat rod 3. At the same time, the seat rod 3 can also rotate towards the backrest rod 2. During the rotation, the first support rod 72 can drive the sliding sleeve 71 to slide and avoid, so that each rod can be folded and stored smoothly.

[0073] Reference Figures 8-10 A brake component 26 is movably connected to the hand crank 24 and is located outside the moving wheel 11. The brake component 26 has a fourth sliding groove 261, the extension direction of which is the same as the extension direction of the side frame plate 23. The brake component 26 is movably fitted onto the movable insert 81 through the fourth sliding groove 261, and the movement direction of the brake component 26 is the same as the extension direction of the side frame plate 23. Based on this, when the hand crank 24 is rotated towards the linkage plate seat 85, the brake component 26 can press against the moving wheel 11, thus acting as a brake. At this time, the moving wheel 11 cannot rotate freely, which helps to improve the convenience for family members or patients when switching the working status of the integrated machine.

[0074] Reference Figure 11 A handle rod 9 is rotatably mounted on the top of the backrest rod 2. The handle rod 9 has a rotating waist hole 91. A positioning pin 27 is fixedly connected to the top of the backrest rod 2. The positioning pin 27 passes through the rotating waist hole 91 and can rotate freely within the rotating waist hole 91.

[0075] Reference Figure 12 An elastic locking mechanism 92 is provided between the handle rod 9 and the backrest rod 2. Specifically, the elastic locking mechanism 92 includes a fixed base plate 921, a linkage bracket 922, and a second spring 923. The fixed base plate 921 is fixedly installed on the inner side of the handle rod 9, and the fixed base plate 921 has an axially penetrating rectangular groove. The linkage bracket 922 is located below the fixed base plate 921, and a rectangular guide rod 924 is fixed at the top of the linkage bracket 922. The rectangular guide rod 924 is slidably inserted into the rectangular groove, so that the linkage bracket 922 can move along the direction of the handle rod 9 and can rotate circumferentially with the handle rod 9.

[0076] The second spring 923 is sleeved on the outside of the rectangular guide rod 924. One end of the second spring 923 abuts against the fixed base plate 921, and the other end abuts against the linkage bracket 922. The second spring 923 can always generate an elastic force acting on the linkage bracket 922, thereby forcing the linkage bracket 922 to move normally towards the positioning pin 27. In addition, the linkage bracket 922 has two locking grooves 9221, which are symmetrically arranged along the central axis of the linkage bracket 922, forming an angle of 180°. Based on this, when the linkage bracket 922 rotates to the position where one of the locking grooves 9221 is directly opposite the positioning pin 27, the second spring 923 can force the locking groove 9221 to match and lock with the positioning pin 941, thereby restricting the circumferential rotation of the handle rod 9.

[0077] Reference Figure 13A grip piece 93 is rotatably mounted on the end of the handle rod 9 away from the backrest rod 2, and a sliding member 94 is slidably mounted on the inner side of the handle rod 9, with the sliding member 94 located at the end of the handle rod 9 near the grip piece 93; see details. Figure 13 The handle 9 has a first groove 95, the extension direction of which is the same as the axial direction of the handle 9. A pin 941 is fixedly inserted into the outer circumferential surface of the sliding member 94. The pin 941 passes through the first groove 95 and slides within the first groove 95, allowing the sliding member 94 to move along the axial direction of the handle 9. (See also...) Figure 12 The sliding component 94 is connected to the linkage bracket 922 by a pull rope 96, so that when the moving component moves, it can drive the linkage bracket 922 to move upward together.

[0078] Back Figure 13 A guide structure for forcing the sliding member 94 to move is provided between the handle 93 and the sliding member 94. Specifically, the guide structure is a spiral groove 931 formed on the inner circumferential surface of the handle 93, with the spiral groove extending spirally along the axial direction of the handle 93. The end of the pin 941 passes through the first sliding groove 95 and is partially located inside the spiral groove. Based on this, when the integrated machine is in a sitting assistance state, family members can conveniently push the integrated machine to move it using the handle 9 and the handle 93 to facilitate patient care.

[0079] When the integrated machine switches to walking assistance mode, family members or patients can hold the handle 93 and rotate it circumferentially. After rotation, the handle 93 engages with the spiral groove 931 via the pin 941, which can drive the sliding component 94 to move away from the backrest bar 2. This, in turn, can drive the linkage seat 922 upward via the pull rope 96, causing the positioning pin 27 to disengage from the locking groove 9221. Then, family members or patients can rotate the handle rod 9 180° so that the other locking groove 9221 of the linkage seat 922 is aligned with the positioning pin 27. At this time, the linkage seat 922 can re-engage with the positioning pin 27 under the elastic force of the second spring 923. The handle rod 9 and the handle 93 rotate to the inside of the integrated machine, making it easier for the patient to hold the handle 93 for support and assisted walking.

[0080] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A walking and sitting rehabilitation training integrated machine, comprising two sets of side frame assemblies connected to each other, characterized in that: The side frame assembly includes: Rear wheel rod (1), wherein a movable wheel (11) is rotatably mounted on the rear wheel rod (1); A backrest rod (2) is located above the rear wheel rod (1), and a connecting mechanism (5) is provided between the backrest rod (2) and the rear wheel rod (1); the backrest rod (2) is fixed with a walking rod (21), the walking rod (21) bends downward and extends, and the bottom end of the walking rod (21) is fitted with an anti-slip pad (211); A seat post (3) is provided, one end of which is rotatably connected to a connecting mechanism (5), and a flipping mechanism (6) is provided at the end of the seat post (3) away from the connecting mechanism (5); a seat cushion (33) is provided between the two seat posts (3) of the two sets of side frame assemblies. The front wheel rod (4) is rotatably connected to the seat rod (3) via a flipping mechanism (6); the front wheel rod (4) is rotatably equipped with casters (42); and a sliding support mechanism (7) is provided between the front wheel rod (4) and the rear wheel rod (1). In the seated assist state, the sliding support mechanism (7) is in its maximum extended state to support and position the front wheel rod (4) and the rear wheel rod (1); at this time, the moving wheel (11) and the universal wheel (42) jointly abut against the ground foundation, and the walking pole (21) can be in a suspended state; in the walking assist state, the seat rod (3) and the front wheel rod (4) rotate to fit against the backrest rod (2) and are in a folded state, at which time the walking pole (21) and the moving wheel (11) can jointly abut against the ground foundation.

2. The integrated rehabilitation training machine for walking and sitting as described in claim 1, characterized in that: The connecting mechanism (5) includes a steel pipe sleeve (51) and a rotating plate frame (52). The steel pipe sleeve (51) is fixedly installed between the rear wheel rod (1) and the backrest rod (2). The rotating plate frame (52) is welded to the outer periphery of the steel pipe sleeve (51), and the outer periphery of the rotating plate frame (52) is partially arc-shaped. One end of the chair seat rod (3) is rotatably connected to the rotating plate frame (52), and an arc plate (32) is fixedly sleeved on the outer periphery of the chair seat rod (3). The inner arc surface of the arc plate (32) matches and fits the outer arc surface of the rotating plate frame (52).

3. The integrated rehabilitation training machine for walking and sitting as described in claim 1, characterized in that: The flipping mechanism (6) includes a flipping seat (61) fixed to the end of the seat rod (3) and a rotating bracket (62) fixed to the end of the front wheel rod (4). The flipping seat (61) is provided with a flipping area (611) for accommodating the front wheel rod (4). The inner wall of the flipping area (611) is provided with a rotating groove (612). The rotating bracket (62) is rotatably embedded in the rotating groove (612). The front wheel rod (4) can abut against the two opposite inner walls of the flipping area (611) in both the sitting assistance state and the walking assistance state.

4. The integrated rehabilitation training machine for walking and sitting as described in claim 3, characterized in that: The rotating card holder (62) has a movable groove (621) on its surface, and a guide slide post (622) is provided on the inner wall of the movable groove (621); a limiting plate (64) is movably installed inside the movable groove (621), and the limiting plate (64) has a guide slide groove (641) that is adapted to slide with the guide slide post (622) to realize the circumferential linkage between the limiting plate (64) and the rotating card holder (62); The flipping seat (61) is movably fitted with a pressing component (63), which is coaxially arranged with the rotating seat (62); a first spring (65) is provided between the limiting plate (64) and the inner wall of the movable groove (621), which is used to force the limiting plate (64) to normally press against the pressing component (63) and force the pressing component (63) to move outward; the limiting plate (64) is partially provided with a limiting groove (642), and a positioning post (613) is fixed on the inner wall of the flipping area (611) near the pressing component (63). In the sitting assistance state, the positioning post (613) is matched and locked in the limiting groove (642).

5. The integrated rehabilitation training machine for walking and sitting as described in claim 1, characterized in that: A handle rod (9) is rotatably mounted on the top of the backrest rod (2). A positioning pin (27) is fixedly connected to the backrest rod (2). The handle rod (9) is provided with a rotating waist hole (91). The positioning pin (27) passes through the rotating waist hole (91) and is rotatably set in the rotating waist hole (91). An elastic snap-fit ​​mechanism (92) is provided between the handle rod (9) and the backrest rod (2) to realize the rotational positioning of the handle rod (9). The elastic locking mechanism (92) includes a fixed base plate (921) fixed to the inside of the handle rod (9), a linkage locking seat (922) movably inserted into the fixed base plate (921), and a second spring (923) disposed between the linkage locking seat (922) and the fixed base plate (921). The linkage locking seat (922) has two symmetrically arranged locking grooves (9221). When the linkage locking seat (922) is in a position where the locking groove (9221) is directly opposite to the positioning pin (27), the second spring (923) can force the locking groove (9221) and the positioning pin (27) to match and lock in a limited position. A sliding member (94) is slidably installed on the inner side of the handle rod (9). The sliding direction of the sliding member (94) is set in the same direction as the axis of the handle rod (9). The sliding member (94) is connected to the linkage seat (922) by a pull rope (96). A grip piece (93) is rotatably installed on the end of the handle rod (9) away from the backrest rod (2). A guide structure is provided between the grip piece (93) and the sliding member (94) to realize the sliding member (94) moving away from the backrest rod (2).

6. The integrated rehabilitation training machine for walking and sitting as described in claim 5, characterized in that: The handle rod (9) has a first groove (95) extending in the same direction as the axis of the handle rod (9); a pin (941) is fixed on the outer circumferential surface of the sliding member (94), the pin (941) passes through the first groove (95) and slides in the first groove (95); the guide structure includes a spiral groove (931) on the inner circumferential surface of the grip (93), the spiral groove (931) extending spirally along the axis of the grip (93); the end of the pin (941) passes through the inner side of the spiral groove (931).

7. The integrated rehabilitation training machine for walking and sitting as described in claim 1, characterized in that: The sliding support mechanism (7) includes a sliding sleeve (71) vertically slidably disposed on the rear wheel rod (1), a first support rod (72) rotatably connected to the sliding sleeve (71), a fixed sleeve (73) fixedly disposed on the front wheel rod (4), and a second support rod (74) rotatably connected to the fixed sleeve (73); a guide pin (721) is fixed on the side of the first support rod (72), and a second slide groove (741) is provided on the second support rod (74). The guide pin (721) passes through the second slide groove (741) and is slidably disposed in the second slide groove (741). The second slide (741) includes a sliding area (742) and a limiting area (743) connected thereto. The limiting area (743) is located on one side of the second slide (741) near the first support rod (72), and the limiting area (743) is set at an angle to the sliding area (742). In the seated assisted state, the guide pin (721) abuts against the side end face of the limiting area (743), at which time the first support rod (72) and the second support rod (74) are in extreme positions far apart from each other.

8. The integrated rehabilitation training machine for walking and sitting as described in claim 7, characterized in that: The walking pole (21) is fixedly connected to a side frame plate (23), and the side frame plate (23) is provided with an auxiliary mechanism (8) for assisting in fixing the sliding support mechanism (7); wherein, the auxiliary mechanism (8) includes a movable insert (81), a limiting sleeve (82) and a sliding rod (83), the movable insert (81) is movably inserted into the side frame plate (23), and the limiting sleeve (82) is fixed to the end of the movable insert (81); the side of the limiting sleeve (82) away from the movable insert (81) is provided with a receiving groove (821) for matching and accommodating the guide pin (721); The sliding rod (83) is fixed to the end of the movable insert (81) away from the limiting sleeve (82), and the side frame plate (23) is fixedly mounted with a suspension plate (231) for connecting the sliding rod (83); a third spring (84) is provided between the movable insert (81) and the suspension plate (231), and the third spring (84) is used to force the movable insert (81) to move normally towards the sliding support mechanism (7); The side frame plate (23) is rotatably mounted with a hand crank (24). The hand crank (24) and the movable insert (81) are provided with a linkage structure, which can drive the movable insert (81) to move away from the sliding support mechanism (7) when the hand crank (24) is activated, so as to release the limiting lock between the limiting sleeve (82) and the guide pin (721).

9. The integrated rehabilitation training machine for walking and sitting as described in claim 8, characterized in that: The linkage structure includes a linkage plate seat (85) fixedly mounted on the movable insert (81) and a pusher component (25) fixed to the hand crank (24). The side edge of the linkage plate seat (85) is provided with a push groove (851), and the side edge of the pusher component (25) is provided with a guide part (251) facing the push groove (851). When the hand crank (24) rotates towards the linkage plate seat (85), the guide part (251) can abut against the inner wall of the push groove (851) and force the linkage plate seat (85) to gradually move away from the sliding support mechanism (7).

10. The integrated rehabilitation training machine for walking and sitting as described in claim 9, characterized in that: The hand crank (24) is movably connected to a brake component (26), which has a fourth sliding groove (261). The brake component (26) is slidably fitted onto the movable insert (81) through the fourth sliding groove (261), and the direction of movement of the brake component (26) is the same as the extension direction of the side frame plate (23). When the hand crank (24) rotates toward the linkage plate seat (85), the brake component (26) can abut against the moving wheel (11).

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