Novel sitting and standing conversion device

Abstract

The invention relates to the technical field of rehabilitation instruments, and discloses a novel sitting and standing conversion device which comprises two bottom mounting frames, a gantry connecting frame is fixedly connected to one ends of the upper side faces of the two bottom mounting frames, and two symmetrically-arranged extension connecting rods are fixedly connected to the two ends of the upper side face of the gantry connecting frame; the two extension connecting rods are movably sleeved with an upper frame, strip-shaped grooves are formed in the lower ends of the two sides of the upper frame, fastening bolts are in threaded connection with the portions, corresponding to the fastening bolts, of the two sides of the extension connecting rods, a handheld handle is fixedly connected to the top of the upper frame, and an equipment mounting box is fixedly connected to one side of the gantry connecting frame. According to the device, ergonomics is fully considered, stable sitting and standing conversion is achieved, personalized support is provided, the comfort level and the use experience are improved, and the device is easy and convenient to operate, suitable for different users and rehabilitation stages and convenient to use at home.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation equipment, in particular to a novel sit-to-stand conversion device. Background Art

[0002] The sit-to-stand conversion device is an assistive device designed to help people with lower limb dysfunction due to age, disease or other reasons to more easily switch from sitting to standing, and transfer between different positions (such as beds, sofas, wheelchairs, toilets, etc.), improve their ability to take care of themselves. The device plays an important role in assisting daily life and rehabilitation training, and can significantly improve the safety of users during the sit-to-stand conversion process, reduce the burden on caregivers, and enhance patients' self-confidence and quality of life. At the same time, the research and development and application of the sit-to-stand conversion device also reflects the society's care and support for vulnerable groups such as the elderly and the disabled, promotes the development of the field of rehabilitation medicine, and makes positive contributions to building a more harmonious and inclusive social environment.

[0003] As the aging of society intensifies, the demand for sit-to-stand conversion devices is increasing among the elderly with insufficient lower limb muscle strength and the disabled with lower limb motor disorders. Traditional sit-to-stand conversion devices mostly rely on the upper limb strength of the elderly or patients to complete the transition between sitting and standing, which poses great difficulties and safety hazards to users with insufficient upper limb strength or limited movement. For this reason, we propose a new sit-to-stand conversion device. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a novel sit-stand conversion device to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] The lifting of the ...

[0008] A leg support assembly, which is symmetrically arranged on the upper side of the two bottom mounting frames away from one end of the gantry connecting frame, and is used to support the patient's buttocks and legs;

[0009] A buttocks interlaced support assembly, which is arranged above the two leg support assemblies and is used to support the patient's legs and buttocks;

[0010] The chest support assembly is symmetrically arranged on the upper side surfaces of the two bottom mounting frames close to one end of the gantry connecting frame, and is used to support the patient's chest.

[0011] Preferably, the two hand-held handles are fixedly connected with brake handles, the two second movable wheels are fixedly connected with brake pads, the brake handles and brake pads are transmission connected, and the tops of the two hand-held handles are respectively provided with sit-to-stand operation buttons and stand-to-sit operation buttons.

[0012] Preferably, the chest support assembly includes a lower electric push rod, a first support rod, an upper electric push rod, a second support rod and a rotating connecting piece, the upper side surface of the bottom mounting frame is fixedly connected to two rotating connecting pieces, the rotating connecting piece at an end close to the second moving wheel is rotatably connected to the first support rod, the upper side surface of the bottom mounting frame is close to the second moving wheel and is embedded with the lower electric push rod in a rotatable manner, the other end of the lower electric push rod is rotatably connected to the first support rod, the end of the first support rod away from the bottom mounting frame is rotatably connected to the second support rod, the upper side surface of the first support rod is rotatably connected to the upper electric push rod, and the other end of the upper electric push rod is rotatably connected to the second support rod corresponding to an end away from the first support rod.

[0013] Preferably, the chest support assembly also includes a chest support plate, a synchronous connecting rod and a chest electric push rod, the rotational connection between the first support rod and the second support rod, the middle parts of the opposite surfaces of the two second support rods and the other end of the second support rod are all rotationally connected with the synchronous connecting rod, the chest support plate is rotationally connected to the synchronous connecting rod away from one end of the first support rod, the chest electric push rod is fixedly connected to the synchronous connecting rod in the middle part of the two second support rods, and the other end of the chest electric push rod is rotationally connected to the side of the chest support plate.

[0014] Preferably, the leg support assembly includes a third support rod, a leg electric push rod and a mounting frame; the third support rod is rotatably connected to the rotating connection member away from the gantry connecting frame; the leg electric push rod is embedded in the upper side surface of the bottom mounting frame and rotatably connected to one end of the leg electric push rod away from the gantry connecting frame; the other end of the leg electric push rod is rotatably connected to the lower side surface of the third support rod; the mounting frame is fixedly connected to the upper side surface of the third support rod; the mounting frame is L-shaped; and an anti-collision rubber plate is fixedly connected to the side of the mounting frame away from the third support rod.

[0015] Preferably, the leg support assembly also includes a fixed plug, a protective block, a motor mounting box and a fixed plug, the upper side surface of the mounting frame is rotatably connected to the motor mounting box, the opposite sides of the two mounting frames are fixedly connected to fixed plugs, a connecting block is fixed on the side surface of the motor mounting box corresponding to the upper side of the fixed plug, a fixed plug is movably inserted on the connecting block, the lower end of the fixed plug is movably inserted in the fixed plug, a protective block is fixedly connected to one end of the side surface of the mounting frame away from the rotating connecting piece, and the side of the protective block close to the motor mounting box is inclined.

[0016] Preferably, the hip insertion support assembly includes an alloy sleeve, an isolation sleeve, a movable insert sleeve, a driving motor and a threaded rod, the driving motor is fixedly connected to the inner cavity of the motor mounting box, the driving motor is fixedly connected to a gear box at the rotating shaft, the gear box is fixedly connected to the rotating shaft of the threaded rod, the threaded rod extends to a side of the motor mounting box away from the fixed plug block and is threadedly sleeved with a movable insert sleeve, an isolation sleeve is fixedly connected to the annular outer ring of the threaded rod on the side surface of the motor mounting box corresponding to the side surface of the motor mounting box, the isolation sleeve is movably sleeved on the movable insert sleeve, and the other end of the motor mounting box close to the movable insert sleeve is fixedly connected to the alloy sleeve.

[0017] Preferably, the two hip penetration support assemblies are asymmetrically arranged, and the alloy sleeve rods in the two hip penetration support assemblies respectively correspond to the movable insert cylinder in the other hip penetration support assembly, and the length of the movable insert cylinder is the same as that of the threaded rod, which is half of the distance between the two motor mounting boxes, and the length of the alloy sleeve rod is the same as that of the movable insert cylinder.

[0018] Preferably, the control system includes a splitter, a power module, a control module and a circuit breaker assembly; the power module is fixedly connected to one side of the inner cavity of the equipment installation box body, the control module is fixedly connected to the other side of the inner cavity of the equipment installation box body, the end of the control module away from the power module is fixedly connected to the circuit breaker assembly, and the upper side of the equipment installation box body is fixedly connected to the splitter; the splitter, power module, control module and circuit breaker assembly are all electrically connected; the splitter is electrically connected to the lower electric push rod, the upper electric push rod, the chest electric push rod, the leg electric push rod and the motor installation box through wires.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a new sit-stand conversion device, which has the following beneficial effects:

[0021] 1. This new sit-to-stand conversion device fully considers the principles of ergonomics. Through the coordinated work of the electric push rod and the mechanical structure, it realizes the user's smooth transition from sitting to standing. When the user stands up, the device can automatically adjust the support position and angle to ensure that the user's hips and legs are stably supported. At the same time, the chest support plate fits tightly to the user's chest, effectively reducing the burden on the upper limbs, back and waist. The personalized support design significantly improves the user's comfort and usage experience.

[0022] 2. This new sit-to-stand conversion device is simple and convenient to operate. The user only needs to hold the upper handle, pull the operating lever and press the button to complete the conversion between sitting and standing positions, allowing the user to complete the sit-to-stand conversion action independently without the assistance of others, thereby enhancing the user's autonomy and independence.

[0023] 3. This new sit-to-stand conversion device can not only help users complete sit-to-stand conversion movements, but also provide necessary support and assistance when users perform leg walking exercises. The comprehensive functional design makes the device have broad application prospects in the field of rehabilitation training. At the same time, the device is also equipped with safety devices such as brake handles and circuit breaker components to ensure the safety of users during use.

[0024] 4. This is a new sit-to-stand conversion device. The support components and electric push rods of the device are adjustable and can adapt to the needs of users of different body shapes and rehabilitation stages. Whether it is for larger users or patients at different stages of rehabilitation, the device can provide personalized support and assistance. The flexibility and adaptability enable the device to meet the needs of a wider user group and play a greater role in the rehabilitation process.

[0025] 5. This new sit-to-stand conversion device is compact and lightweight and can be used easily in a home environment. It can not only help users complete sit-to-stand conversion movements, but also assist users in daily leg walking exercises. The design that integrates rehabilitation training with daily life enables users to carry out continuous rehabilitation training in a home environment without frequent visits to rehabilitation institutions, thus saving time and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 is a schematic diagram of a chest support assembly of the present invention;

[0028] Figure 3 It is a schematic diagram of the side structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the leg support assembly of the present invention;

[0030] Figure 5 This is a schematic diagram of the split structure of the leg support assembly of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the buttocks interlaced support assembly of the present invention;

[0032] Figure 7 This is a schematic diagram of the connection structure between the movable insert cylinder and the driving motor of the present invention;

[0033] Figure 8 This is a schematic diagram of the inner structure of the box body for installing the equipment of the present invention.

[0034] In the figure: 1, bottom mounting frame; 2, gantry connecting frame; 3, first sliding wheel; 4, second moving wheel; 5, leg support assembly; 6, hip interlaced support assembly; 7, chest support assembly; 8, chest support plate; 9, extension connecting rod; 10, upper frame; 11, fastening bolts; 12, hand-held handle; 13, brake handle; 14, equipment installation box; 15, brake pad; 16, lower electric push rod; 17, first support rod; 18, upper electric push rod; 19, the first Second support rod; 20. Synchronous connecting rod; 21. Chest electric push rod; 22. Rotating connecting piece; 23. Third support rod; 24. Leg electric push rod; 25. Mounting frame; 26. Fixed plug block; 27. Protective block; 28. Motor mounting box; 29. ​​Fixed plug; 30. Alloy sleeve; 31. Isolation sleeve; 32. Moving sleeve; 33. Drive motor; 34. Threaded rod; 35. Splitter; 36. Power module; 37. Control module; 38. Circuit breaker assembly. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] See also Figure 1-8A novel sit-stand conversion device comprises a bottom mounting frame 1, the number of the bottom mounting frames 1 is two, one end of the upper side of the two bottom mounting frames 1 is fixedly connected with a gantry connecting frame 2, the lower side of the bottom mounting frame 1 is rotatably connected with a first sliding wheel 3 at one end away from the gantry connecting frame 2, and the other end of the lower side of the bottom mounting frame 1 is rotatably connected with a second moving wheel 4, two symmetrically arranged extension connecting rods 9 are fixedly connected at both ends of the upper side of the gantry connecting frame 2, an upper frame 10 is movably sleeved on the two extension connecting rods 9, and strip grooves are provided at the lower ends of both sides of the upper frame 10, and fastening bolts 11 are threadedly connected in the corresponding fastening bolts 11 on both sides of the two extension connecting rods 9, and two hand-held handles 12 are fixedly connected to the top of the upper frame 10, and the side of the gantry connecting frame 2 away from the first sliding wheel 3 is fixedly connected with an equipment installation box body 14, and a control system is arranged in the equipment installation box body 14, and also includes:

[0037] The leg support assembly 5 is symmetrically arranged on the upper side of the two bottom mounting frames 1 at one end away from the gantry connecting frame 2, and is used to support the patient's buttocks and legs;

[0038] A buttocks interlaced support assembly 6, which is arranged above the two leg support assemblies 5 and is used to support the patient's legs and buttocks;

[0039] The chest support assembly 7 is symmetrically arranged on the upper side of the two bottom mounting frames 1 near one end of the gantry connecting frame 2, and is used to support the patient's chest.

[0040] Furthermore, brake handles 13 are fixedly connected to the two hand-held handles 12, and brake pads 15 are fixedly connected to the two second moving wheels 4. The brake handles 13 and the brake pads 15 are transmission-connected. The tops of the two hand-held handles 12 are respectively provided with sit-to-stand operation buttons and stand-to-sit operation buttons. The hand-held handles 12 provide users with stable holding points, which are convenient for users to control the device. When the user needs to fix the position of the device to prevent accidental sliding, the brake handles 13 can be operated to achieve this. The brake pads 15 are pneumatically transmission-connected to the brake handles. When the brake handles 13 are operated, the brake pads 15 will apply friction force to the moving wheels 4, thereby fixing the position of the device. The sit-to-stand operation button is used to control the process of converting the device from a sitting position to a standing position, and the stand-to-sit operation button is used to control the process of converting the device from a standing position back to a sitting position.

[0041] Furthermore, the chest support assembly 7 includes a lower electric push rod 16, a first support rod 17, an upper electric push rod 18, a second support rod 19 and a rotating connecting piece 22. Two rotating connecting pieces 22 are fixedly connected to the upper side surface of the bottom mounting frame 1. The first support rod 17 is rotatably connected to the rotating connecting piece 22 at one end close to the second moving wheel 4. The upper side surface of the bottom mounting frame 1 close to the second moving wheel 4 is embedded with the lower electric push rod 16 in a rotatable manner. The other end of the lower electric push rod 16 is rotatably connected to the first support rod 17. The end of the first support rod 17 away from the bottom mounting frame 1 is rotatably connected to the second support rod 19. The upper side surface of the first support rod 17 is rotatably connected to the upper electric push rod 18. The other end of the upper electric push rod 18 is rotatably connected to the second support rod 19 corresponding to the end away from the first support rod 17.

[0042] Furthermore, the chest support assembly 7 also includes a chest support plate 8, a synchronous connecting rod 20 and a chest electric push rod 21. The rotational connection between the first support rod 17 and the second support rod 19, the middle of the opposite surfaces of the two second support rods 19 and the other end of the second support rod 19 are all rotationally connected with the synchronous connecting rod 20. The chest support plate 8 is rotationally connected to the synchronous connecting rod 20 away from one end of the first support rod 17. The chest electric push rod 21 is fixedly connected to the synchronous connecting rod 20 in the middle of the two second support rods 19, and the other end of the chest electric push rod 21 is rotationally connected to the side of the chest support plate 8.

[0043] Furthermore, the leg support assembly 5 includes a third support rod 23, a leg electric push rod 24 and a mounting frame 25. The third support rod 23 is rotatably connected to the rotating connection piece 22 away from the gantry connecting frame 2. The upper side surface of the bottom mounting frame 1 away from the gantry connecting frame 2 is embedded with the leg electric push rod 24 in a rotatable manner. The other end of the leg electric push rod 24 is rotatably connected to the lower side surface of the third support rod 23. The upper side surface of the third support rod 23 is fixedly connected with the mounting frame 25. The mounting frame 25 is L-shaped. The side of the mounting frame 25 away from the third support rod 23 is fixedly connected with an anti-collision rubber plate. The fixed block 26 and the fixed plug 29 together constitute a stable fixing structure of the leg support assembly. The fixed block 26 is fixed on the mounting frame 25, and the fixed plug 29 is connected to the connecting block on the side of the motor mounting box 28 by a movable plug-in method, and finally inserted into the fixed block 26, so as to achieve a stable fixation of the motor mounting box, which not only simplifies the installation and disassembly process, but also ensures the stability of the motor mounting box during use, and prevents loosening or displacement due to vibration or external force. One side of the protective block 27 is inclined to prevent the motor mounting box 28 from excessively rotating outward.

[0044] Furthermore, the leg support assembly 5 also includes a fixed plug 26, a protective block 27, a motor mounting box 28 and a fixed plug 29. The motor mounting box 28 is rotatably connected to the upper side of the mounting frame 25, and the opposite sides of the two mounting frames 25 are fixedly connected to the fixed plug 26. A connecting block is fixed on the side of the motor mounting box 28 corresponding to the upper side of the fixed plug 26, and a fixed plug 29 is movably inserted into the connecting block. The lower end of the fixed plug 29 is movably inserted into the fixed plug 26. A protective block 27 is fixedly connected to the end of the side of the mounting frame 25 away from the rotating connecting member 22, and the side of the protective block 27 close to the motor mounting box 28 is inclined.

[0045] Furthermore, the hip insertion support assembly 6 includes an alloy sleeve 30, an isolation sleeve 31, a movable insert sleeve 32, a drive motor 33 and a threaded rod 34. The drive motor 33 is fixedly connected in the inner cavity of the motor mounting box 28, and a gear box is fixedly connected to the rotating shaft of the drive motor 33. The threaded rod 34 is fixedly connected to the rotating shaft of the gear box. The threaded rod 34 extends to the side of the motor mounting box 28 away from the fixed plug block 26 and is threadedly sleeved with the movable insert sleeve 32. The isolation sleeve 31 is fixedly connected to the annular outer ring of the threaded rod 34 on the side of the motor mounting box 28 corresponding to the side of the motor mounting box 28. The isolation sleeve 31 is movably sleeved on the movable insert sleeve 32, and the other end of the motor mounting box 28 close to the movable insert sleeve 32 is fixedly connected with the alloy sleeve 30.

[0046] Furthermore, the two hip insertion support assemblies 6 are asymmetrically arranged, and the alloy sleeve rods 30 in the two hip insertion support assemblies 6 respectively correspond to the movable insert cylinder 32 in the other hip insertion support assembly 6. The length of the movable insert cylinder 32 is the same as that of the threaded rod 34, which is half of the distance between the two motor mounting boxes 28. The length of the alloy sleeve rod 30 is the same as that of the movable insert cylinder 32.

[0047] Furthermore, the control system includes a splitter 35, a power module 36, a control module 37 and a circuit breaker assembly 38. The power module 36 is fixedly connected to one side of the inner cavity of the equipment installation box body 14, and the control module 37 is fixedly connected to the other side of the inner cavity of the equipment installation box body 14. The end of the control module 37 away from the power module 36 is fixedly connected to the circuit breaker assembly 38. The upper side of the equipment installation box body 14 is fixedly connected to the splitter 35. The splitter 35, the power module 36, the control module 37 and the circuit breaker assembly 38 are all electrically connected. The splitter 35 is electrically connected to the lower electric push rod 16, the upper electric push rod 18, the chest electric push rod 21, the leg electric push rod 24 and the motor installation box 28 through wires.

[0048] Working principle: The design of the new sit-to-stand conversion device fully considers the needs and comfort of users. When the user needs to convert from a sitting position to a standing position, he first grips the brake handle 13 at the upper end, and then pulls the handheld handle 12 to place the user between the two leg support components 5 of the device. Then, by rotating the motor mounting box 28, the alloy sleeve 30 and the isolation sleeve 31 are driven to rotate to the bottom of the user's legs and buttocks by rotating the motor mounting box 28, and the fixing plug 29 is inserted into the fixing plug block 26 to complete the fixation of the buttocks insertion support component 6. The drive motor 33 is started by pressing the button on the upper end of the motor mounting box 28. The threaded rod 34 is driven by the drive motor 33 to rotate so that the movable insert 32 moves forward. The two movable inserts 32 are inserted into the alloy sleeve 30 on the motor mounting box 28 on the other side to complete the fixation. At this time, the support for the user's legs and buttocks is completed.

[0049] Next, the user puts his chest against the chest support plate 8 and presses the sit-to-stand operation button on the handheld handle 12, and controls the chest support assembly 7 and the leg support assembly 5 through the control module 37 to perform the support work. Specifically, on the one hand, the third support rod 23 is pushed up by the leg electric push rod 24, and the rising action gradually lifts the user's hips and legs, reducing the burden on the user's own upper limb strength. At the same time, the fixed plug block 26 and the protective block 27 structure ensure the stability and safety of the support assembly; when the user tends to stand or is in a standing state, under the action of the leg electric push rod 24 and the third support rod 23, the motor mounting box 28 is tilted as a whole, and at the same time, the support rod formed by the two movable inserts 32 and the alloy sleeve rod 30 is in line with the state of the user's hips and legs.

[0050] On the other hand, when the user stands up from a sitting position, the lower electric push rod 16 and the upper electric push rod 18 work together to push the first support rod 17 and the second support rod 19 to assist the user in standing up. The chest electric push rod 21 also pushes the chest support plate 8 up to help the user straighten his chest and reduce the burden on the back and waist. In this process, the synchronous connecting rod 20 ensures the synchronous movement of the chest support components on both sides to avoid the user from tilting or being unstable when standing up. During the whole process, the user can easily control the lifting and stopping of the device by using the operating buttons on the handheld handle 12; the collaborative work of the leg support component 5 and the chest support component 7 can reduce the burden on the user's upper limb strength. At the same time, considering the ergonomic design, the chest electric push rod 21 pushes the chest support plate 8 so that the chest support plate 8 always fits the user's chest during the standing up process, providing the user with a safe, comfortable and convenient sit-to-stand transition experience.

[0051] After the transition from sitting to standing is completed, the area in front of the user's legs is left blank, and the user can perform leg walking exercises with the help of the chest support plate 8 and the hand-held handle 12. When the user needs to switch from standing to sitting, the reverse conversion process can be started by pressing the standing-to-sitting operation button on the hand-held handle 12, and the electric push rods and drive motors work in reverse, so that the chest support plate 8, the leg support assembly 5 and the hip interlaced support assembly 6 slowly descend, helping the user to sit back on the device smoothly.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel sit-stand conversion device, comprising a bottom mounting frame (1), characterized in that: The number of the bottom mounting frames (1) is two, one end of the upper side surfaces of the two bottom mounting frames (1) is fixedly connected to a gantry connecting frame (2), one end of the lower side surface of the bottom mounting frames (1) away from the gantry connecting frame (2) is rotatably connected to a first sliding wheel (3), and the other end of the lower side surface of the bottom mounting frames (1) is rotatably connected to a second moving wheel (4), two symmetrically arranged extension connecting rods (9) are fixedly connected to the two ends of the upper side surface of the gantry connecting frame (2), an upper frame (10) is movably sleeved on the two extension connecting rods (9), strip grooves are provided at the lower ends of both sides of the upper frame (10), and fastening bolts (11) are threadedly connected to the corresponding fastening bolts (11) on both sides of the two extension connecting rods (9), and two hand-held handles (12) are fixedly connected to the top of the upper frame (10), and a side of the gantry connecting frame (2) away from the first sliding wheel (3) is fixedly connected to an equipment installation box body (14), and a control system is arranged in the equipment installation box body (14), and also includes: A leg support assembly (5) is symmetrically arranged on the upper side of the two bottom mounting frames (1) at one end away from the gantry connecting frame (2), and is used to support the buttocks and legs of the patient; A buttocks interlaced support assembly (6), which is arranged above the two leg support assemblies (5) and is used to support the patient's legs and buttocks; A chest support assembly (7) is symmetrically arranged on the upper side surfaces of the two bottom mounting frames (1) close to one end of the gantry connecting frame (2) and is used to support the patient's chest.

2. A novel sit-stand conversion device according to claim 1, characterized in that: The two hand-held handles (12) are fixedly connected with brake handles (13), the two second movable wheels (4) are fixedly connected with brake pads (15), the brake handles (13) and the brake pads (15) are transmission-connected, and the tops of the two hand-held handles (12) are respectively provided with sit-to-stand operation buttons and stand-to-sit operation buttons.

3. A novel sit-stand conversion device according to claim 1, characterized in that: The chest support assembly (7) comprises a lower electric push rod (16), a first support rod (17), an upper electric push rod (18), a second support rod (19) and a rotating connecting member (22); the upper side surface of the bottom mounting frame (1) is fixedly connected to two rotating connecting members (22); the first support rod (17) is rotatably connected to the rotating connecting member (22) at one end close to the second moving wheel (4); the lower electric push rod (16) is embedded and rotatably connected to one end of the upper side surface of the bottom mounting frame (1) close to the second moving wheel (4); the other end of the lower electric push rod (16) is rotatably connected to the first support rod (17); the end of the first support rod (17) away from the bottom mounting frame (1) is rotatably connected to the second support rod (19); the upper side surface of the first support rod (17) is rotatably connected to the upper electric push rod (18); the other end of the upper electric push rod (18) is rotatably connected to the second support rod (19) corresponding to the end away from the first support rod (17).

4. A novel sit-stand conversion device according to claim 3, characterized in that: The chest support assembly (7) also includes a chest support plate (8), a synchronous connecting rod (20) and a chest electric push rod (21); the rotational connection between the first support rod (17) and the second support rod (19), the middle of the opposite surfaces of the two second support rods (19) and the other end of the second support rod (19) are all rotationally connected with the synchronous connecting rod (20); the chest support plate (8) is rotationally connected to the synchronous connecting rod (20) at one end away from the first support rod (17); the chest electric push rod (21) is fixedly connected to the synchronous connecting rod (20) in the middle of the two second support rods (19); the other end of the chest electric push rod (21) is rotationally connected to the side of the chest support plate (8).

5. The novel sit-stand conversion device according to claim 1, characterized in that: The leg support assembly (5) comprises a third support rod (23), a leg electric push rod (24) and a mounting frame (25); the third support rod (23) is rotatably connected to the rotating connection member (22) away from the gantry connecting frame (2); the leg electric push rod (24) is embedded and rotatably connected to one end of the upper side surface of the bottom mounting frame (1) away from the gantry connecting frame (2); the other end of the leg electric push rod (24) is rotatably connected to the lower side surface of the third support rod (23); the mounting frame (25) is fixedly connected to the upper side surface of the third support rod (23); the mounting frame (25) is L-shaped; and an anti-collision rubber plate is fixedly connected to one side of the mounting frame (25) away from the third support rod (23).

6. A novel sit-stand conversion device according to claim 5, characterized in that: The leg support assembly (5) further comprises a fixed plug block (26), a protective block (27), a motor mounting box (28) and a fixed plug (29); the motor mounting box (28) is rotatably connected to the upper side surface of the mounting frame (25); the opposite sides of the two mounting frames (25) are fixedly connected to the fixed plug blocks (26); a connecting block is fixed on the side surface of the motor mounting box (28) corresponding to the upper side of the fixed plug block (26); a fixed plug (29) is movably plugged into the connecting block; the lower end of the fixed plug (29) is movably plugged into the fixed plug block (26); a protective block (27) is fixedly connected to the end of the side surface of the mounting frame (25) away from the rotating connecting member (22); and the side of the protective block (27) close to the motor mounting box (28) is inclined.

7. The novel sit-stand conversion device according to claim 1, characterized in that: The hip insertion support assembly (6) comprises an alloy sleeve rod (30), an isolation sleeve (31), a movable insert sleeve (32), a driving motor (33) and a threaded rod (34); the driving motor (33) is fixedly connected in the inner cavity of the motor mounting box (28); the rotating shaft of the driving motor (33) is fixedly connected to a gear box; the rotating shaft of the gear box is fixedly connected to a threaded rod (34); the threaded rod (34) extends to a side of the motor mounting box (28) away from the fixed insert block (26) and is threadedly sleeved with the movable insert sleeve (32); the side of the motor mounting box (28) is fixedly connected with an isolation sleeve (31) on the annular outer ring corresponding to the threaded rod (34); the isolation sleeve (31) is movably sleeved on the movable insert sleeve (32); the other end of the motor mounting box (28) close to the movable insert sleeve (32) is fixedly connected with the alloy sleeve rod (30).

8. The novel sit-stand conversion device according to claim 7, characterized in that: The two buttocks insertion support assemblies (6) are arranged asymmetrically, and the alloy sleeve rods (30) in the two buttocks insertion support assemblies (6) respectively correspond to the movable insert cylinder (32) in the other buttocks insertion support assembly (6), and the length of the movable insert cylinder (32) is the same as that of the threaded rod (34), and both are half of the distance between the two motor mounting boxes (28). The length of the alloy sleeve rod (30) is the same as that of the movable insert cylinder (32).

9. The novel sit-stand conversion device according to claim 8, characterized in that: The control system comprises a wire splitter (35), a power module (36), a control module (37) and a circuit breaker assembly (38); one side of the inner cavity of the equipment installation box body (14) is fixedly connected to the power module (36); the other side of the inner cavity of the equipment installation box body (14) is fixedly connected to the control module (37); one end of the control module (37) away from the power module (36) is fixedly connected to the circuit breaker assembly (38); the upper side of the equipment installation box body (14) is fixedly connected to the wire splitter (35); the wire splitter (35), the power module (36), the control module (37) and the circuit breaker assembly (38) are all electrically connected; the wire splitter (35) is electrically connected to the lower electric push rod (16), the upper electric push rod (18), the chest electric push rod (21), the leg electric push rod (24) and the motor installation box (28) through electric wires.

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