Novel rehabilitation chair

By adopting a U-shaped structure and articulated legs on the health care chair, combined with hand-driven pull rope and damping lock box, the problems of insufficient stability and posture adjustment of the existing health care chair are solved, and the user can adjust the posture independently and The chair is stable, improving the comfort and convenience of use.

CN222341469UActive Publication Date: 2025-01-14LINYI HONGDE MECHANICAL EQUIP CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421038458.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-01-14
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing health care chairs have shortcomings in stability and posture adjustment, which is difficult to meet the long-term use needs of the elderly, the disabled and health care workers. The overall structure is inconvenient for movement and adjustment, resulting in inconvenience and poor comfort.

Method used

A new type of health care chair was designed, using a U-shaped chair frame, articulated legs and locking universal wheel, combined with hand-driven pull rope and damping locking bin to achieve stable expansion and closing of the chair back frame, which is convenient. The user adjusts his sitting and lying posture independently, and improves the stability and mobility of the chair through hinge and linkage relationships.

Benefits of technology

The stability and service life of the health care chair is achieved, the energy consumption of the accompanying staff is reduced, and the user can adjust his posture independently. The chair is more convenient when moving and storing, increasing comfort and practicality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222341469U_ABST
    Figure CN222341469U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel health care chair which comprises a chair frame, armrest components, chair support cloth, front support legs, rear support legs, a rear lock rod, a front lock rod and a hand-driven pull rope, the chair frame is mainly composed of a chair back frame, a bottom support frame and a pedal frame, the bottoms of the armrest components are connected with the rear support legs, the rear support legs are hinged to the front support legs, the bottom ends of the front support legs and the bottom ends of the rear support legs are provided with locking universal wheels, and the locking universal wheels are connected with the front lock rod. One end of a rear lock rod is hinged to the inner side of each front supporting leg, one end of a front lock rod is hinged to the other end of each rear lock rod, an open lock bin is arranged at the end of each rear lock rod, the other end of each front lock rod is hinged to the inner side of the corresponding pedal frame, and one end of a hand-driven pull rope is connected to the top side of each open lock bin. The device is convenient to move, convenient to autonomously control and high in practicability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of a novel health-care chair, and in particular to a novel health-care chair. Background Art

[0002] For the elderly, disabled people, health care workers and other groups with limited mobility, specially structured seats are often needed to provide functions such as sitting and lying. Such seats should not only be convenient for users to sit and half-lie, but also easy for caregivers to push, and should ensure comfort as much as possible in sitting and lying postures.

[0003] In the prior art, although wheelchairs can be pushed and moved, their structural stability and linkage are not ideal, resulting in that their posture is generally difficult to adjust and they can often only be used for a short period of time. They lack comfort and practicality when used for a long time. At present, although conventional reclining chairs can provide a semi-reclining posture, they are not easy to move or adjust. Medical staff basically change reclining chairs with different lying postures to meet the comfort of the patients. One staff member needs to take care of multiple patients at the same time, which requires a lot of energy. In addition, the overall structural stability of the existing reclining chairs is poor, and it is not convenient for the patients to adjust them by themselves. Utility Model Content

[0004] The purpose of the utility model is to provide a novel health care chair to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A novel health care chair comprises a chair frame, an armrest assembly, a chair support cloth, a front support leg, a rear support leg, a rear locking rod, a front locking rod, and a hand-driven pull rope. The chair frame is mainly composed of a chair back frame, a bottom support frame, and a footrest frame, all of which are U-shaped structures. The armrest assembly is provided with two groups, which are respectively connected to the two sides of the chair back frame and the footrest frame. The armrest assembly and the chair frame are combined together to form a reclining chair structure. The bottom of the armrest assembly is connected to the rear support leg, and the rear support leg is hinged to the front support leg, and the front and rear legs cooperate to play a supporting role. The bottom ends of the front and rear legs are provided with locking universal wheels, which can facilitate the movement of the health care chair and facilitate medical staff to move the elderly or patients. The two ends of the bottom of the chair back frame are connected to the two ends of the bottom support frame by fixing hinge plates The two ends of one side of the bottom support frame are hinged to the two sides of the footrest frame through fixed hinge plates, and the extension and folding of the health care frame can be conveniently performed by hingedly connecting the back frame, the bottom support frame and the footrest frame in sequence, so that the health care chair can be extended and folded, and then the health care chair can be folded and stored on the basis of being extended and leaned on. The inner sides of the front legs are hinged with one end of the rear locking rod, and the other end sides of the rear locking rod are hinged with one end of the front locking rod, and the end of the rear locking rod is provided with an open locking warehouse, and the other end of the front locking rod is hinged to the inner side of the corresponding footrest frame, the opening width of the open locking warehouse is adapted to the thickness of the front locking rod, and when the front locking rod and the rear locking rod are at a right angle, the end of the front locking rod is buckled into the open locking warehouse, and when the open locking warehouse is buckled with the front locking rod, a damping effect is generated on the end of the front locking rod, which will not be easily locked from the open locking warehouse. The front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane, and the front locking rod and the rear locking rod are respectively arranged on a horizontal plane and a horizontal plane The user only needs to pull the corresponding pull rods with both hands to pull the hand-driven pull rope, and the end of the front lock rod can be easily disengaged from the open lock chamber. Continuing to pull will pull the foot frame through the front lock rod, thereby changing the unfolding angle of the health care chair. When the hand-driven pull rope is perpendicular to the open lock chamber, the force required is minimal, and the user can easily control the folding and closing, which is convenient for turning from a semi-reclining position to a sitting position. In this process, the user can assume a stable semi-reclining position by leaning back, and can also pull the hand-driven pull rope to change to a sitting position. It is completely controlled by the user himself.The operation is simple and effective, and it can fully realize autonomous control through a purely mechanical structure, which can ensure the stability and service life of the health care chair and save the energy of the accompanying personnel.

[0007] Furthermore, a seat support cloth is provided on the inner side of the chair frame, and the edges of the seat support cloth are fixedly connected to the inner sides of the seat back frame, the bottom support frame and the footrest frame in sequence, so that the user can lie down on the seat support cloth. A headrest is fixed on one side of the seat support cloth located on the inner side of the seat back frame to increase the comfort of the user.

[0008] Furthermore, the rear ends of the armrest assemblies are connected to the corresponding positions of the chair back frame by bolts, and a cross column is provided on the inner top, a toothed plate is fixedly provided on the bottom side of the cross column, the top of the rear leg is slidably sleeved on the cross column through a movable hinge plate, a twist wrench is rotatably provided on the inner side of the movable hinge plate, and a toothed block is integrally formed on one side of the twist wrench. The movable hinge plate on the top of the rear leg can move along the cross column, and the cross column will restrict it through the movable hinge plate on the top of the rear leg, and a damping block is fixedly provided on one side of the twist wrench. The user can use the twist wrench to make the toothed block engage the toothed plate, thereby preventing the movable hinge plate on the top of the rear leg from moving along the cross column, thereby achieving the armrest. The position between the hand assembly and the rear support leg is fixed, and because the end side of the armrest assembly is connected to the seat back frame by bolts, the rearward tilt angle of the seat back frame can be changed as the position between the armrest assembly and the rear support leg is changed. The damping block and the twist wrench are in contact with each other, and the contact position between the twist wrench and the damping block is an arc structure. When the twist wrench is used to make the tooth block engage with the tooth plate, the twist wrench exerts the greatest pressure on the damping block, and then the friction between the two ensures that the tooth block can stably engage with the tooth plate and will not fall off easily. When the rearward tilt angle of the seat back frame needs to be changed, the user can manually pull the twist wrench to disengage it from the tooth plate, thereby achieving the purpose of adjustment, thereby increasing practicality.

[0009] Furthermore, the top of the front leg is hinged at the top of the rear leg, and the rear leg is slidably sleeved with a slide cylinder, and a through cavity is provided on one side of the slide cylinder, and a connecting shaft is inserted in the through cavity, and one end of the connecting shaft is rotatably inserted into the corresponding position of the bottom support frame, and the other end is rotatably connected to one end of a hinged rod, and the other end of the hinged rod is rotatably connected to one side of the front leg. Through the cooperation of the hinged rod and the connecting shaft, a linkage relationship is formed among the front leg, the rear leg and the bottom support frame, and the maximum angle between the front leg and the rear leg can be limited by the hinged rod to avoid that the angle between the two is too large and affects the overall height of the chair frame. With a blocking screw, when the chair frame is in the unfolded state, the rear legs are in a state where the angle can be freely adjusted with the cross column. As the angle between the rear legs and the cross column changes, the slide tube will slide up and down along the rear legs under the action of the hinge rod and the connecting shaft. The blocking screw can limit the sliding distance of the slide tube. Under the action of the linkage relationship, it can be understood that the slide tube drives the connecting shaft to rise and fall, so that the higher the position of the slide tube, the smaller the angle of the bottom support frame tilting backwards, and vice versa. The larger the angle, the backward tilting angle of the bottom support frame can be adjusted by changing the position of the blocking screw, so as to facilitate the adjustment of the user's comfort when lying back, and further increase the usability.

[0010] Furthermore, both sides of the end of the seat back frame and both sides of the bottom support frame are connected with a bundle sleeve through a fixing rod, one side of the bundle sleeve is an outward-turned opening structure, and the outward-turning direction of the bundle sleeve opening on the same side is consistent, and functional rods are provided on both sides of the chair frame, and the functional rods are two-section structures of threaded sleeve connection, which can be disassembled and stored by threads when not in use, and both ends of the functional rods are respectively arranged in corresponding bundle sleeves. When it is necessary to allow patients undergoing rehabilitation to get on the vehicle for travel, relevant personnel can take out and combine the functional rods, adjust the length of the functional rods to an appropriate length, and then fasten the two ends through the outward-turned openings of the bundle sleeves, and then two people cooperate with the functional rods to lift the rehabilitation chair as a whole and place it inside a motorhome or other travel vehicle, thereby increasing the functionality and practicality of the rehabilitation chair, and tube bags are respectively provided on both sides of the part of the chair support cloth located on the inner side of the seat back frame, and the disassembled functional rods are held in the tube bags.

[0011] Furthermore, the other end of the hand-driven pull rope extends to the top side of the corresponding handrail assembly and is connected to a pull rod. A plurality of guide cylinders are provided on the outside of the handrail assembly. The hand-driven pull rope passes through each guide cylinder in turn and extends to the top side of the corresponding handrail assembly by guiding the hand-driven pull rope.

[0012] Furthermore, an arc-shaped supporting rod is fixed between the two ends of the bottom support frame, which can increase the stability of the bottom support frame and at the same time lift the chair support cloth to prevent the user from feeling too much falling. Reinforcing rods are fixedly arranged on the bottom between the front legs and the bottom between the rear legs, and the overall stability is further increased by the reinforcing rods.

[0013] Furthermore, the chair back frame and the bottom support frame, the bottom support frame and the footrest frame, and the front legs and the rear legs are all hinged through fixed hinge plates, and the two ends of the top of the footrest frame are respectively hinged to the ends of the two groups of armrest assemblies, further increasing the linkage relationship between the chair back frame, the bottom support frame, the footrest frame, and the armrest assembly.

[0014] In the above technical scheme, the beneficial effects of a pineapple peeling machine provided by the utility model are as follows:

[0015] 1) The utility model plays a supporting role through the cooperation of the front legs and the rear legs. The bottom ends of the front legs and the rear legs are both provided with locking universal wheels. The locking universal wheels can facilitate the movement of the health care chair, making it convenient for medical staff to move the elderly or patients;

[0016] 2) The inner side of the front legs of the utility model is hinged with one end of the rear locking rod, and the other end of the rear locking rod is hinged with one end of the front locking rod, and the end of the rear locking rod is provided with an open lock chamber. When the front locking rod and the rear locking rod are at a right angle, the end of the front locking rod is buckled into the open lock chamber, and when the open lock chamber is buckled with the front locking rod, a damping effect is generated on the end of the front locking rod, so that it will not be easily separated from the open lock chamber. One end of the hand-driven pull rope is connected to the top side of the open lock chamber. The user can assume a stable semi-lying posture by leaning back, and can also pull the hand-driven pull rope to change to a sitting posture. It is completely controlled by the user himself, and the operation method is simple and effective. It fully realizes autonomous control through a purely mechanical structure, which can ensure the stability and service life of the health care chair and save the energy of the accompanying personnel;

[0017] 3) The ends of the chair back frame and the bottom support frame of the utility model are connected with a bundle sleeve on both sides through a fixed rod, and functional rods are provided on both sides of the chair frame. The two ends of the functional rods are respectively arranged in the corresponding bundle sleeves. When it is necessary to get the patient who is undergoing rehabilitation on the vehicle for travel, the relevant personnel can take out and assemble the functional rods, adjust the length of the functional rods to an appropriate length, and then fasten the two ends through the outward opening of the bundle sleeves, and then two people cooperate with the functional rods to lift the entire health care chair and place it inside a motorhome or other travel vehicle, thereby increasing the functionality and practicality of the health care chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is a structural schematic diagram of a new type of health care chair of the utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of a new type of health care chair in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of one side of a new health care chair of the utility model;

[0022] Figure 4 This is a schematic diagram of the chair frame structure of a new type of health care chair in the utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the front locking rod and the rear locking rod in a new health care chair of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of an armrest assembly in a new health care chair of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the meshing state of the buckle tooth block and the tooth plate in a new health care chair of the utility model;

[0026] In the figure: 1. Chair frame; 11. Chair back frame; 12. Bottom support frame; 13. Footrest frame; 14. Fixed hinge plate; 15. Support rod; 16. Hinge connecting rod; 161. Coupling; 17. Reinforcement rod; 18. Cable sleeve; 19. Fixed rod; 2. Armrest assembly; 21. Cross column; 22. Tooth plate; 23. Active hinge plate; 24. Twist wrench; 25. Tooth block; 26. Damping block; 27. Guide cylinder; 3. Chair support cloth; 31. Headrest; 32. Cylinder bag; 4. Front support leg; 5. Rear support leg; 51. Slide cylinder; 52. Through cavity; 53. Block screw; 6. Locking universal wheel; 7. Function rod; 8. Rear locking rod; 81. Open lock bin; 9. Front locking rod; 10. Hand-driven pull rope; 101. Pull rod. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] A new health care chair, including a chair frame 1, an armrest assembly 2, a chair support cloth 3, a front leg 4, a rear leg 5, a rear locking rod 8, a front locking rod 9, and a hand-driven pull rope 10. The chair frame 1 is mainly composed of a chair back frame 11, a bottom support frame 12, and a footrest frame 13, all of which are U-shaped structures. The armrest assembly 2 is provided with two groups to connect the back frame 11 and the footrest frame 13 on both sides, and the armrest assembly 2 and the chair frame 1 are combined to form a reclining chair structure. The bottom of the armrest assembly 2 is connected to the rear The legs 5 are hinged with the front legs 4, and the front legs 4 and the rear legs 5 cooperate to play a supporting role. The bottom ends of the front legs 4 and the rear legs 5 are provided with locking universal wheels 6. The locking universal wheels 6 can facilitate the movement of the health care chair, and it is convenient for medical staff to move the elderly or patients. The two ends of the bottom of the chair back frame 11 are hinged with the two sides of the end of the bottom support frame 12 through fixed hinge plates 14, and the two ends of one side of the bottom support frame 12 are fixed by hinge plates 14. It is hinged on both sides of the footrest frame 13, and the back frame 11, the bottom support frame 12, and the footrest frame 13 are hinged in sequence, so that the health care chair can be extended and folded conveniently. Therefore, the health care chair can be extended and leaned on, and can also be folded for easy storage. The inner side of the chair frame 1 is provided with a chair support cloth 3, and the sides of the chair support cloth 3 are fixedly connected to the inner sides of the back frame 11, the bottom support frame 12, and the footrest frame 13 in sequence, and the chair support cloth 3 is used for the user to lie down and sit. A headrest 31 is fixed on one side of the chair support cloth 3 located on the inner side of the back frame 11 to increase the comfort of the user. An arc-shaped supporting rod 15 is fixed between the two ends of the bottom support frame 12. The supporting rod 15 can increase the stability of the bottom support frame 12 and at the same time can lift the chair support cloth 3 to prevent the user from feeling too much falling. Reinforcing rods 17 are fixedly provided at the bottom between the front legs 4 and the bottom between the rear legs 5. The overall stability is further increased by the reinforcing rod 17.

[0029] The backrest frame 11 and the bottom support frame 12, the bottom support frame 12 and the footrest frame 13, and the front support leg 4 and the rear support leg 5 are all hinged through a fixed hinge plate 14, and the two ends of the top of the footrest frame 13 are respectively hinged to the ends of the two groups of armrest assemblies 2, further increasing the linkage relationship between the backrest frame 11, the bottom support frame 12, the footrest frame 13, and the armrest assembly 2.

[0030] The two ends of the seat back frame 11 and the two sides of the bottom support frame 12 are connected with a bundle sleeve 18 through a fixing rod 19. One side of the bundle sleeve 18 is an outward-turned opening structure, and the outward-turning direction of the bundle sleeve 18 opening on the same side is consistent. Functional rods 7 are provided on both sides of the chair frame 1. The functional rods 7 are both two-section structures of threaded sleeve connection. When they are not needed, they can be disassembled and stored by threads. The two ends of the functional rod 7 are respectively arranged in the corresponding bundle sleeve 18. When it is necessary to get the patient who is undergoing rehabilitation on the vehicle for travel, the relevant personnel can take out and assemble the functional rod 7, adjust the length of the functional rod 7 to an appropriate length, and then fasten the two ends through the outward-turned opening of the bundle sleeve 18 to the inside, and then two people cooperate with the functional rod 7 to lift the health care chair as a whole and place it in a motorhome or other travel vehicle, thereby increasing the functionality and practicality of the health care chair. The part of the chair support cloth 3 located on the inner side of the seat back frame 11 is provided with tube bags 32 on both sides, and the disassembled functional rod 7 is contained in the tube bags 32.

[0031] The inner side of the front support leg 4 is hinged with one end of the rear locking rod 8, and the other end of the rear locking rod 8 is hinged with one end of the front locking rod 9, and the end of the rear locking rod 8 is provided with an open locking bin 81, and the other end of the front locking rod 9 is hinged to the inner side of the corresponding foot pedal frame 13, and the opening width of the open locking bin 81 is adapted to the thickness of the front locking rod 9. When the front locking rod 9 and the rear locking rod 8 are in a right angle state, the end of the front locking rod 9 is buckled into the open locking bin 81, and when the open locking bin 81 is buckled with the front locking rod 9, a damping effect is generated on the end of the front locking rod 9, which will not cause it to easily detach from the open locking bin 81. The top side of the open locking bin 81 is connected to one end of a hand-driven pull rope 10, and the other end of the hand-driven pull rope 10 It extends to the top side of the corresponding armrest assembly 2 and is connected with a pull rod 101. A plurality of guide cylinders 27 are arranged on the outside of the armrest assembly 2. The hand-driven pull rope 10 passes through each guide cylinder 27 in turn, and is guided by the hand-driven pull rope 10 to extend to the top side of the corresponding armrest assembly 2. When the user lies on the health care chair and leans back, the back force pushes the chair back frame 11 to cause the chair frame 1 to unfold. During the unfolding process, the angle between the front locking rod 9 and the rear locking rod 8 will gradually change. As the unfolding reaches a certain degree, the two will form a flat angle, thereby limiting the unfolding degree, which will not cause excessive unfolding to cause the person to lean back, affecting the user's comfort, and the end of the front locking rod 9 is buckled into After the opening lock chamber 81 is in place, a certain amount of damping can be generated to ensure that the front locking rod 9 will not easily disengage from the opening lock chamber 81, causing the health care chair to be folded casually. The user is in a semi-reclining state with the center of gravity downward at the bottom support frame 12, and the dispersed force is mainly to cause the rear locking rod 8 to press downward. Even if the user twists or changes his posture on the health care chair to shift the center of gravity, there is no need to worry about the health care chair suddenly folding. When the front locking rod 9 and the rear locking rod 8 are in a flat angle state, the hand-driven pull rope 10 is in a perpendicular state to the top side of the opening lock chamber 81, and the user only needs to pull the corresponding pull rods 101 with both hands to pull the hand-driven pull rope 10, and the front locking rod 9 can be easily folded. 9 ends are disengaged from the open lock chamber 81, and continued pulling will pull the footrest frame 13 through the front locking rod 9, thereby changing the unfolding angle of the health care chair, and when the hand-driven pull rope 10 is in a vertical state with the open lock chamber 81, the force required is minimal, and the user can easily control the folding and closing, making it convenient to turn the semi-reclining position into a sitting position. In this process, the user can assume a stable semi-reclining position by leaning back, and can also pull the hand-driven pull rope 10 to change to a sitting position. It is completely controlled by the user himself, and the operation method is simple and effective, and completely realizes autonomous control through a purely mechanical structure, which can ensure the stability and service life of the health care chair and save the energy of the accompanying personnel.

[0032] The rear ends of the armrest assemblies 2 are connected to the corresponding positions of the seat back frame 11 by bolts, and a transverse column 21 is arranged on the inner top thereof, a tooth plate 22 is fixedly arranged on the bottom side of the transverse column 21, and the top of the rear leg 5 is slidably sleeved on the transverse column 21 through a movable hinge plate 23, a twisting wrench 24 is rotatably arranged on the inner side of the movable hinge plate 23, and a tooth block 25 is integrally formed on one side of the twisting wrench 24. The movable hinge plate 23 on the top of the rear leg 5 can move along the transverse column 21, and the transverse column 21 will be constrained by the movable hinge plate 23 on the top of the rear leg 5, and a damping block 26 is fixedly arranged on one side of the twisting wrench 24. The user can use the twisting wrench 24 to make the tooth block 25 engage the tooth plate 22, thereby making the movable hinge plate 23 on the top of the rear leg 5 unable to move along the transverse column 21, thereby The position between the armrest assembly 2 and the rear support leg 5 is fixed, and because the end side of the armrest assembly 2 is connected to the seat back frame 11 by bolts, the rearward tilt angle of the seat back frame 11 can be changed as the position between the armrest assembly 2 and the rear support leg 5 is changed. The damping block 26 and the twist wrench 24 are in contact with each other, and the contact position between the twist wrench 24 and the damping block 26 is an arc structure. When the twist wrench 24 makes the tooth block 25 engage the tooth plate 22, the twist wrench 24 exerts the greatest pressure on the damping block 26, and then the friction between the two ensures that the tooth block 25 can stably engage the tooth plate 22 and will not fall off easily. When the rearward tilt angle of the seat back frame 11 needs to be changed, the user can manually pull the twist wrench 24 to disengage it from the tooth plate 22, thereby achieving the purpose of adjustment, thereby increasing practicality.

[0033] The top of the front leg 4 is hinged to the top position of the rear leg 5, and the rear leg 5 is slidably sleeved with a slide tube 51, and a through cavity 52 is provided on one side of the slide tube 51, and a connecting shaft 161 is inserted in the through cavity 52. ​​One end of the connecting shaft 161 is rotatably inserted into the corresponding position of the bottom support frame 12, and the other end is rotatably connected to one end of a hinge rod 16, and the other end of the hinge rod 16 is rotatably connected to one side of the front leg 4. Through the cooperation of the hinge rod 16 and the connecting shaft 161, a linkage relationship is formed among the front leg 4, the rear leg 5, and the bottom support frame 12. The maximum angle between the front leg 4 and the rear leg 5 can be limited by the hinge rod 16 to avoid the influence of too large an angle between the two on the overall height of the chair frame 1. There is a blocking screw 53. When the chair frame 1 is in the unfolded state, the rear leg 5 is in a state where the angle can be freely adjusted with the cross column 21. As the angle between the rear leg 5 and the cross column 21 changes, under the action of the hinge rod 16 and the connecting shaft 161, the slide 51 will slide up and down along the rear leg 5. The blocking screw 53 can limit the sliding distance of the slide 51. Under the action of the linkage relationship, it can be understood that the slide 51 drives the connecting shaft 161 to rise and fall, so that the higher the position of the slide 51, the smaller the angle of the bottom support frame 12 to tilt backward, and vice versa. Therefore, the backward tilt angle of the bottom support frame 12 can be adjusted by changing the position of the blocking screw 53, so as to facilitate the adjustment of the user's comfort when lying back, and further increase the usability.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new type of health care chair, characterized in that: The chair frame comprises a chair frame, an armrest assembly, a chair support cloth, a front leg, a rear leg, a rear locking rod, a front locking rod, and a hand-driven pull rope. The chair frame is mainly composed of a chair back frame, a bottom supporting frame, and a footrest frame, all of which are U-shaped structures. The armrest assembly is provided with two groups to connect the back frame and the footrest frame on both sides respectively, and a reclining chair structure is formed by combining the armrest assembly and the chair frame. The bottom of the armrest assembly is connected to the rear leg, and the rear leg is hinged to the front leg. The bottom ends of the front leg and the rear leg are A locking universal wheel is provided, and both ends of the bottom of the chair back frame are hinged to the two sides of the end of the bottom support frame through fixed hinge plates, and both ends of one side of the bottom support frame are hinged to the two sides of the foot pedal frame through fixed hinge plates. One end of the rear locking rod is hinged to the inner side of the front support leg, and one end of the front locking rod is hinged to the other end of the rear locking rod, and an open locking bin is provided at the end of the rear locking rod, and the other end of the front locking rod is hinged to the inner side of the corresponding foot pedal frame, and one end of a hand-driven pull rope is connected to the top side of the open locking bin.

2. A new health care chair according to claim 1, characterized in that: A seat support cloth is provided on the inner side of the chair frame, and the sides of the seat support cloth are fixedly connected to the inner sides of the seat back frame, the bottom support frame and the footrest frame in sequence. A headrest is fixed on one side of the portion of the seat support cloth located on the inner side of the seat back frame.

3. A new health care chair according to claim 1, characterized in that: The rear ends of the armrest assemblies are connected to the corresponding positions of the chair back frames by bolts, and a horizontal column is arranged on the inner top, a toothed plate is fixedly arranged on the bottom side of the horizontal column, the tops of the rear legs are slidably sleeved on the horizontal column through movable hinges, a torque wrench is rotatably arranged on the inner side of the movable hinge, a toothed block is integrally formed on one side of the torque wrench, a damping block is fixedly arranged on one side of the torque wrench, the damping block and the torque wrench are in contact with each other, and the contact position between the torque wrench and the damping block is an arc structure.

4. The novel health care chair according to claim 1 is characterized in that: The top of the front leg is hinged to the top of the rear leg, and the rear leg is slidably sleeved with a slide tube. A through cavity is provided on one side of the slide tube, and a connecting shaft is inserted in the through cavity. One end of the connecting shaft is rotatably inserted into the corresponding position of the bottom support frame, and the other end is rotatably connected to one end of a hinge rod. The other end of the hinge rod is rotatably connected to one side of the front leg, and a blocking screw is provided on one side of the rear leg.

5. The novel health care chair according to claim 1 is characterized in that: Both sides of the end of the seat back frame and both sides of the bottom support frame are connected with a bundle sleeve through a fixing rod. One side of the bundle sleeve is an outward-turned opening structure, and the outward-turning direction of the bundle sleeve opening on the same side is consistent. Functional rods are provided on both sides of the chair frame. The functional rods are two-section structures of threaded sleeve connection. Both ends of the functional rods are respectively arranged in the corresponding bundle sleeves, and tube bags are respectively provided on both sides of the part of the chair support cloth located on the inner side of the seat back frame.

6. The novel health care chair according to claim 1 is characterized in that: The other end of the hand-driven pull rope extends to the top side of the corresponding handrail assembly and is connected to a pull rod. A plurality of guide cylinders are arranged on the outside of the handrail assembly, and the hand-driven pull rope passes through each guide cylinder in sequence.

7. The novel health care chair according to claim 1 is characterized in that: An arc-shaped supporting rod is fixed between the two ends of the bottom supporting frame, and a reinforcing rod is fixedly arranged at the bottom between the front supporting legs and the bottom between the rear supporting legs.

8. The novel health care chair according to claim 1 is characterized in that: The backrest frame and the bottom support frame, the bottom support frame and the footrest frame, and the front legs and the rear legs are all hinged through fixed hinge plates, and the two ends of the top of the footrest frame are respectively hinged to the ends of the two groups of armrest assemblies.