Elderly chair bracket and elderly chair with the bracket

Abstract

The present invention provides a support for an elderly chair, comprising a chair frame, a first pushing assembly, an extension assembly, a first transmission assembly and a leg assembly, wherein the extension assembly comprises an adapter plate, the adapter plate and the first pushing assembly are both connected to the chair frame, the adapter plate is connected to the leg assembly via the first transmission assembly, and the first pushing assembly can drive the leg assembly to retract or extend via the first transmission assembly and the adapter plate. In the support for an elderly chair provided by the present invention, the adapter plate is connected to the first transmission assembly, and the first pushing assembly can drive the leg assembly to retract or extend via the first transmission assembly and the adapter plate; compared with the existing support for an elderly chair, the adapter plate replaces complicated parts, simplifies the structure of the support for an elderly chair, thereby facilitating the installation of the support for an elderly chair, and is also beneficial in reducing production costs and improving economic benefits. The present invention also provides an elderly chair, comprising the above-mentioned elderly chair support, which has a simple structure, more stable transmission and higher safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical devices, and in particular relates to a senior citizen chair bracket and a senior citizen chair having the bracket. Background Art

[0002] Elderly chairs are mechanical devices designed specifically for the physical condition of the elderly, helping them adjust their sitting posture and assisting them in standing. However, existing elderly chairs are complex in structure and have many parts, making installation cumbersome and production costs high. Summary of the Invention

[0003] In view of this, it is necessary to provide a senior citizen chair bracket and a senior citizen chair having the bracket, aiming to simplify the structure of the senior citizen chair and reduce production costs.

[0004] The present invention provides a chair support for the elderly, comprising a chair frame, a first pushing assembly, an extension assembly, a first transmission assembly and a leg assembly, wherein the extension assembly and the first pushing assembly are both connected to the chair frame, and the extension assembly is connected to the leg assembly via the first transmission assembly.

[0005] The extension assembly includes an adapter plate having a guide groove formed thereon; the first transmission assembly includes a first hinge, a second hinge, and a first transmission member and a second transmission member respectively located on both sides of the adapter plate, the first hinge extending into the guide groove, the first hinge having two ends respectively connected to the first transmission member and the second transmission member, the second hinge passing through and rotatably connected to the adapter plate, and the second hinge having two ends respectively connected to the first transmission member and the second transmission member;

[0006] The first pushing component is connected to the first transmission member. The first pushing component can drive the first transmission member to rotate around the second hinge member, and drive one end of the first hinge member to slide along the guide groove with the second hinge member as the rotation center. The other end of the first hinge member can drive the leg assembly to contract or extend through the second transmission member.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0008] In one embodiment, the elderly chair support includes an angle adjustment assembly, the angle adjustment assembly includes an adjustment plate, the adjustment plate is fixedly connected to the adapter plate, and the adjustment plate is rotatably connected to the leg assembly. The elderly chair support also includes a second pushing assembly and a second transmission assembly, the second pushing assembly is connected to the adjustment plate through the second transmission assembly, and the second pushing assembly can drive the adjustment plate to rotate relative to the second transmission assembly.

[0009] In one embodiment, the adapter plate is bent and includes a first connection portion, a second connection portion and a third connection portion respectively located in different planes, the first connection portion is connected to the chair frame, the second connection portion is connected to the first transmission member, and the third connection portion is connected to the adjustment plate.

[0010] In one embodiment, the adjustment plate is provided with a support member, and the chair frame is provided with a first buffer pad, and during the movement of the adjustment plate, the support member can abut against the first buffer pad; and / or,

[0011] The chair frame is provided with a second buffer pad, and during the movement of the adapter plate, the adapter plate can abut against the second buffer pad.

[0012] In one embodiment, the adjustment plate and the support member are fixed by riveting.

[0013] In one embodiment, the first pushing assembly includes a first lead screw, a first lead screw nut and a first driving member, the first lead screw nut is screwed to the first lead screw, the first driving member is connected to the first lead screw nut, and the first driving member can drive the first lead screw nut to rotate to drive the first lead screw to perform linear reciprocating motion; the second pushing assembly includes a second lead screw, a second lead screw nut and a second driving member, the second lead screw nut is screwed to the second lead screw, the second driving member is connected to the second lead screw nut, and the second driving member can drive the second lead screw nut to rotate to drive the second lead screw to perform linear reciprocating motion.

[0014] In one embodiment, the first driving member is a push rod motor, and / or;

[0015] The second driving member is a push rod motor.

[0016] In one embodiment, the chair frame includes a first support rod, a second support rod, a third support rod and a fourth support rod connected end to end in sequence, and the first support rod, the second support rod, the third support rod and the fourth support rod are arranged in a rectangular shape, the first support rod and the third support rod are arranged opposite to each other, one end of the first support rod extends outward and forms a first reinforcement portion, and one end of the third support rod extends outward and forms a second reinforcement portion.

[0017] In one embodiment, the elderly chair support further includes a lifting assembly, which includes a first lifting member and a second lifting member. The chair frame is provided with a fourth connecting portion, and the two ends of the first lifting member are respectively connected to the fourth connecting portion and the adapter plate, and the two ends of the second lifting member are respectively connected to the fourth connecting portion and the adapter plate.

[0018] The elderly chair bracket provided by the present invention has an adapter plate connected to the first transmission assembly, and the first pushing assembly can drive the leg assembly to contract or extend through the first transmission assembly and the adapter plate; compared with the existing elderly chair bracket, the adapter plate replaces complicated parts, the transmission is more stable, and at the same time, the structure of the elderly chair bracket is simplified, which is convenient for the installation of the elderly chair bracket, which is conducive to reducing production costs and improving economic benefits.

[0019] The present invention also provides a chair for the elderly, which includes the above-mentioned chair support.

[0020] The elderly chair provided by the present invention has a simple structure, more stable transmission and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the support structure of an elderly chair in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the chair frame structure in the elderly chair bracket shown;

[0023] Figure 3 for Figure 1 The schematic diagram of the structure of the first pushing component in the elderly chair bracket is shown;

[0024] Figure 4 for Figure 1 The schematic diagram of the adapter plate structure in the elderly chair bracket shown;

[0025] Figure 5 for Figure 1 A schematic diagram of the first transmission assembly and part of the structure in the elderly chair bracket shown;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the leg assembly in the elderly chair bracket shown;

[0027] Figure 7 for Figure 1 The schematic diagram of the structure of the leg assembly of the elderly chair bracket shown in the extended state;

[0028] Figure 8 for Figure 1 A schematic diagram of a portion of the structure of the elderly chair bracket shown;

[0029] Figure 9 for Figure 1 The schematic diagram of the elderly chair support lifting assembly shown is in the lifted state;

[0030] Figure 10 for Figure 1 The diagram shows the structure of the second pushing component in the elderly chair bracket.

[0031] Description of reference numerals:

[0032] 100. Elderly chair bracket; 10. Chair frame; 11. First support rod; 111. First reinforcement; 12. Second support rod; 13. Third support rod; 131. Second reinforcement; 14. Fourth support rod; 15. First buffer pad; 16. Second buffer pad; 17. Fourth connecting portion; 20. First pushing assembly; 21. First driving member; 22. First lead screw; 30. First transmission assembly; 31. First hinge; 32. Second hinge; 33. First transmission member; 34. Second transmission member; 35. Third transmission member; 36. Fourth transmission member; 40. Second pushing assembly; 41. Second driving member ;42. Second lead screw;50. Second transmission assembly;51. Fifth transmission member;52. Sixth transmission member;60. Angle adjustment assembly;61. Adjustment plate;62. Support member;70. Leg assembly;71. First extension member;72. Second extension member;73. Third extension member;74. Fourth extension member;741. Guide block;75. Fifth extension member;76. Support member;80. Extension assembly;81. Adapter plate;811. First connecting part;812. Second connecting part;813. Third connecting part;814. Guide groove;90. Lifting assembly;91. First lifting member;92. Second lifting member. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] See also Figure 1 , Figure 1 The figure is a schematic diagram of the structure of the elderly chair support 100 in one embodiment of the present invention. The elderly chair support 100 provided by the present invention includes a chair frame 10, a first pushing assembly 20, a first transmission assembly 30, a second pushing assembly 40, a second transmission assembly 50, an angle adjustment assembly 60, a leg assembly 70, an extension assembly 80 and a lifting assembly 90; the first pushing assembly 20 is connected to the chair frame 10, and the first pushing assembly 20 is connected to the first transmission assembly 30. The first pushing assembly 20 provides a driving force for adjusting the height of the elderly chair support 100 and the position of the legs; the first transmission assembly 30 is connected to the extension assembly 80 and the leg assembly 70, and the first transmission assembly 30 is used to drive the leg assembly 70 to retract. Or stretch to achieve adjustment of the leg position of the elderly chair bracket 100; the second pushing component 40 is connected to the first transmission component 30, and the second pushing component 40 is connected to the second transmission component 50. The second pushing component 40 provides driving force for the angle adjustment of the backrest of the elderly chair bracket 100; the second transmission component 50 is connected to the angle adjustment component 60, and the second transmission component 50 can rotate the angle adjustment component 60 to achieve angle adjustment of the back of the elderly chair bracket 100; the lifting component 90 is connected between the chair frame 10 and the stretching component 80, and the lifting component 90 can achieve height adjustment of the seat position of the elderly chair bracket 100.

[0037] The elderly chair bracket 100 of the present invention has a first pushing component 20 driving the first transmission component 30, and the first transmission component 30 drives the leg component 70 to extend or retract through the extending component 80, so that the leg position of the elderly chair bracket 100 is adjusted; the second pushing component 40 drives the extending component 80 to rotate, and the extending component 80 drives the angle adjustment component 60 to rotate relative to the second transmission component 50, so that the angle position of the backrest of the elderly chair bracket 100 is adjusted; the first pushing component 20 continuously pushes the first transmission component 30, and the first transmission component 30 drives the extending component 80, and the extending component 80 rotates around the chair frame 10 through the lifting component 90, so that the seat height of the elderly chair bracket 100 is adjusted.

[0038] The extension assembly 80 of the elderly chair frame 100 of the present invention is used to adjust the seat height and backrest angle of the elderly chair frame 100. The extension assembly 80 includes an adapter plate 81, which is connected to the first transmission assembly 30. Compared with existing elderly chair frames, the adapter plate 81 replaces complex components, simplifies the structure of the elderly chair frame 100, facilitates installation of the elderly chair frame 100, and helps reduce production costs and improve economic benefits.

[0039] Please also refer to 2. Figure 2 for Figure 1 The structure of the chair frame 10 in the elderly chair support 100 is shown. The chair frame 10 includes a first support rod 11, a second support rod 12, a third support rod 13, and a fourth support rod 14. The first support rod 11, the second support rod 12, the third support rod 13, and the fourth support rod 14 are connected end to end and arranged in a rectangular shape. The first support rod 11 and the third support rod 13 are arranged opposite each other. One end of the first support rod 11 extends outward to form a first reinforcement portion 111, and one end of the third support rod 13 extends outward to form a second reinforcement portion 131. The arrangement of the first reinforcement portion 111 and the second reinforcement portion 131 can improve the stability of the elderly chair support 100. Specifically, when the local force near the armrest of the elderly chair support 100 is large, the first reinforcement portion 111 or the second reinforcement portion 131 can be combined with the corresponding support rod to abut against the ground, thereby expanding the force range, preventing the elderly chair support 100 from tipping over, and eliminating safety hazards.

[0040] It is worth noting that the above “the first support rod 11 , the second support rod 12 , the third support rod 13 and the fourth support rod 14 are connected end to end in sequence and arranged in a rectangular shape” means that the chair frame 10 is roughly rectangular in shape.

[0041] The first support rod 11 and the third support rod 13 are both provided with a first buffer pad 15, which is used to cushion the movement of the angle adjustment assembly 60. During the movement of the angle adjustment assembly 60, the angle adjustment assembly 60 can abut against the first buffer pad 15, thereby reducing the impact and collision between the angle adjustment assembly 60 and the chair frame 10, which is beneficial to extending the service life of the elderly chair bracket 100.

[0042] A second buffer pad 16 is provided at each end of the fourth support rod 14 to cushion the movement of the adapter plate 81. During the movement of the adapter plate 81, the adapter plate 81 can abut against the second buffer pad 16, thereby reducing the impact between the adapter plate 81 and the chair frame 10, which is also beneficial to extending the service life of the elderly chair bracket 100.

[0043] Please also refer to Figure 3 , Figure 3 for Figure 1 The figure shows a schematic diagram of the structure of the first propulsion assembly 20 in the elderly chair support 100. The first propulsion assembly 20 includes a first driving member 21, a first lead screw nut (not shown), and a first lead screw 22. The first driving member 21 is hinged to the second support rod 12. The output end of the first driving member 21 is connected to the first lead screw nut. The first lead screw nut is sleeved and screwed onto the first lead screw 22. The first lead screw 22 is connected to the first transmission assembly 30. The first driving member 21 can drive the first lead screw nut to rotate, and the first lead screw nut drives the first lead screw 22 to perform reciprocating linear motion, thereby realizing that the first lead screw 22 drives the first transmission assembly 30 to move.

[0044] In this embodiment, the first driving member 21 is selected as a push rod motor, which has the advantages of small size, high precision and good self-locking performance, and is suitable for the elderly chair bracket 100; it can be understood that in other embodiments, the first driving member 21 can also be selected as other driving elements.

[0045] Please also refer to Figure 4 , Figure 4 for Figure 1The schematic diagram of the adapter plate 81 in the elderly chair bracket 100 is shown. The adapter plate 81 includes a first connecting portion 811, a second connecting portion 812, and a third connecting portion 813. The first connecting portion 811 is used to connect to the chair frame 10, the second connecting portion 812 is used to connect to the first transmission assembly 30, and the third connecting portion 813 is used to connect to the angle adjustment assembly 60. The first connecting portion 811, the second connecting portion 812, and the third connecting portion 813 are respectively located in different planes. The gaps between the first connecting portion 811, the second connecting portion 812, and the third connecting portion 813 allow the various transmission components in the first transmission assembly 30 to move, preventing excessive friction caused by the transmission components being too close together. This facilitates smooth and stable transmission of the first transmission assembly 30, and further facilitates stable adjustment of the elderly chair bracket 100.

[0046] Please also refer to Figure 5 , Figure 5 for Figure 1 The diagram of the first transmission assembly 30 and part of the structure of the elderly chair bracket 100 is shown. The first transmission assembly 30 includes a first hinge 31, a second hinge 32, a first transmission member 33 and a second transmission member 34; a guide groove 814 is provided on the second connecting portion 812, the first hinge 31 is disposed in the guide groove 814, the first transmission member 33 and the second transmission member 34 are respectively disposed on both sides of the adapter plate 81, one end of the first hinge 31 is connected to the first transmission member 33, the other end of the first hinge 31 is connected to the second transmission member 34, and the second hinge 32 is passed through and rotatably connected to the adapter plate 81. 1, the two ends of the second hinge member 32 are respectively connected to the first transmission member 33 and the second transmission member 34; the first lead screw 22 is hinged to the first transmission member 33. Under the drive of the first driving member 21, the first lead screw 22 can drive the first transmission member 33 to rotate around the second hinge member 32, and drive the first hinge member 31 to slide along the guide groove 814. At the same time, the first hinge member 31 drives the second transmission member 34 to move, thereby realizing that the first pushing assembly 20 drives the leg assembly 70 to contract or extend through the first transmission assembly 30 and the adapter plate 81.

[0047] In this embodiment, the first hinge 31 and the first transmission member 33 and the second transmission member 34 are all rotationally connected, and the second hinge 32 and the first transmission member 33 and the second transmission member 34 are all rotationally connected; it can be understood that in other embodiments, the first hinge 31 and the first transmission member 33 and the second transmission member 34 can also be fixedly connected, and the second hinge 32 and the first transmission member 33 and the second transmission member 34 can also be fixedly connected, as long as the above-mentioned transmission effect can be achieved, no specific limitation is made.

[0048] The first transmission assembly 30 also includes a third transmission member 35 and a fourth transmission member 36. The third transmission member 35 and the fourth transmission member 36 are both arranged on the side of the second transmission member 34 of the adapter plate 81. The two ends of the third transmission member 35 are respectively hinged to the second transmission member 34 and the fourth transmission member 36. At the same time, the fourth transmission member 36 is hinged to the angle adjustment assembly 60; under the action of the first pushing assembly 20, the second transmission member 34 can rotate around the second hinge member 32 and drive the third transmission member 35 and the fourth transmission member 36 to move in conjunction. The first transmission member 33, the second transmission member 34, the third transmission member 35 and the fourth transmission member 36 form a connecting rod transmission.

[0049] Please also refer to Figure 6 , Figure 6 for Figure 1 The structure of the leg assembly 70 in the elderly chair bracket 100 is shown. The leg assembly 70 includes a first extension member 71, a second extension member 72, a third extension member 73, a fourth extension member 74, a fifth extension member 75, and a supporting member 76. One end of the first extension member 71 is hinged to the third transmission member 35, and the other end of the first extension member 71 is hinged to the second extension member 72. At the same time, the two ends of the second extension member 72 are respectively hinged to the angle adjustment assembly 60 and the third extension member 73. The two ends of the fourth extension member 74 are respectively hinged to the angle adjustment assembly 60 and the fifth extension member 75. The third extension member 73 is hinged to the fourth extension member 74. The fourth extension member 74 is provided with a guide block 741, which can abut against the third extension member 73. The third extension member 73 and the fifth extension member 75 are sandwiched and hinged to the supporting member 76.

[0050] Please also refer to Figure 7 , Figure 7 for Figure 1 The figure shows a schematic diagram of the structure of the leg assembly 70 in the elderly chair support 100 in the extended state. When the leg assembly 70 is extended, the third transmission member 35 drives the first extension member 71 to move, the first extension member 71 drives the second extension member 72 to rotate clockwise around the angle adjustment member 60, the second extension member 72 drives the third extension member 73 to move, the third extension member 73 drives the fourth extension member 74 to rotate clockwise around the angle adjustment member 60, the fourth extension member 74 drives the fifth extension member 75 to move, and the third extension member 73 and the fifth extension member 75 jointly drive the support member 76 to rotate clockwise, thereby extending the leg assembly 70.

[0051] When the leg assembly 70 performs a contraction movement, the movement is opposite to the above. The third transmission member 35 drives the first stretching member 71 to move, the first stretching member 71 drives the second stretching member 72 to rotate counterclockwise around the angle adjustment assembly 60, the second stretching member 72 drives the third stretching member 73 to move, the third stretching member 73 abuts against the guide block 741 and drives the fourth stretching member 74 to rotate counterclockwise around the angle adjustment assembly 60, the fourth stretching member 74 drives the fifth stretching member 75 to move, the third stretching member 73 and the fifth stretching member 75 jointly drive the supporting member 76 to rotate counterclockwise, thereby realizing the contraction of the leg assembly 70.

[0052] Please also refer to Figure 8 and Figure 9 , Figure 8 for Figure 1 The schematic diagram of the partial structure of the elderly chair bracket 100 is shown. Figure 9 for Figure 1 The diagram shows the lifting assembly 90 of the elderly chair support 100 in a lifted state. The elderly chair support 100 also includes a lifting assembly 90, which includes a first lifting member 91 and a second lifting member 92; the first support rod 11 and the third support rod 13 on the chair frame 10 are both provided with a fourth connection portion 17, and the two ends of the first lifting member 91 are respectively rotatably connected to the fourth connection portion 17 and the first connection portion 811 of the adapter plate 81, and the two ends of the second lifting member 92 are respectively rotatably connected to the fourth connection portion 17 and the first connection portion 811 of the adapter plate 81; under the action of the first pushing assembly 20, when the leg assembly 70 completes its contraction, the first hinge member 31 is located at the end of the guide slot 814. At this time, if the first pushing assembly 20 continues to push the first transmission member 33, the first transmission member 33 can It is enough to drive the first hinge 31 to resist the guide groove 814. Under the action of the first driving member 21, the first screw 22 applies force to the first hinge 31 through the first transmission member 33. The first hinge 31 applies force to the adapter plate 81. The adapter plate 81 drives the first lifting member 91 and the second lifting member 92 to rotate and rise relative to the chair frame 10, thereby realizing the high position adjustment of the elderly chair bracket 100; when the elderly chair bracket 100 is adjusted from a high position to a low position, as the first pushing component 20 continuously unloads force, the movement direction of the first pushing component 20 is opposite to the above direction, and the adapter plate 81 can fall back relative to the chair frame 10 through the first lifting member 91 and the second lifting member 92, thereby realizing the seat height adjustment of the elderly chair bracket 100.

[0053] Please also refer to Figure 10 , Figure 10 for Figure 1The figure shows a schematic diagram of the structure of the second driving assembly 40 in the elderly chair support 100. The second driving assembly 40 includes a second driving member 41, a second lead screw nut (not shown), and a second lead screw 42. The second driving member 41 is hinged to the adapter plate 81. The output end of the second driving member 41 is connected to the second lead screw nut, which is sleeved and screwed onto the second lead screw 42. The second lead screw 42 is connected to the second transmission assembly 50. The second driving member 41 can drive the angle adjustment assembly 60 to rotate relative to the second transmission assembly 50 to adjust the backrest angle of the elderly chair support 100.

[0054] In this embodiment, the second driving member 41 is selected as a push rod motor, which has the advantages of small size, high precision and good self-locking performance, and is suitable for the elderly chair bracket 100; it can be understood that in other embodiments, the second driving member 41 can also be selected as other driving elements.

[0055] The angle adjustment assembly 60 includes an adjustment plate 61, which is fixedly connected to the adapter plate 81. At the same time, the adjustment plate 61 is hinged to the second extension member 72, the fourth extension member 74 and the fourth transmission member 36. A support member 62 is provided on the adjustment plate 61, which can abut against the first buffer pad 15; the second transmission assembly 50 includes a fifth transmission member 51 and a sixth transmission member 52. One end of the second screw 42 is hinged to the fifth transmission member 51, the fifth transmission member 51 is fixedly connected to the sixth transmission member 52, and the sixth transmission member 52 is hinged to the adjustment plate 61; under the action of the second driving member 41, the second screw 42 can push the fifth transmission member 51, and the reaction force of the fifth transmission member 51 on the second pushing assembly 40 acts on the adapter plate 81, and the adapter plate 81 rotates relative to the first lifting member 91 and the second lifting member 92. At the same time, the adapter plate 81 drives the adjustment plate 61 to rotate relative to the sixth transmission member 52, thereby realizing the angle adjustment of the adjustment plate 61, and further realizing the angle adjustment of the backrest of the elderly chair bracket 100.

[0056] In this embodiment, the adjustment plate 61 and the support member 62 are fixed by riveting, thereby strengthening the connection stability between the adjustment plate 61 and the support member 62, which is beneficial to improving the stability of the elderly chair bracket 100; it can be understood that in other embodiments, the adjustment plate 61 and the support member 62 can also be connected by other connection methods such as adhesive connection.

[0057] The components of the elderly chair bracket 100 are symmetrical structures. To facilitate understanding of this solution, the above description only describes the mechanism on one side of the elderly chair bracket 100.

[0058] The elderly chair bracket 100 provided by the present invention has an adapter plate 81 connected to the first transmission assembly 30, and the first pushing assembly 20 can drive the leg assembly 70 to contract or extend through the first transmission assembly 30 and the adapter plate 81; compared with the existing elderly chair bracket, the adapter plate 81 replaces complicated parts, the transmission is more stable, and at the same time simplifies the structure of the elderly chair bracket 100, which is convenient for the installation of the elderly chair bracket 100, which is conducive to reducing production costs and improving economic benefits.

[0059] The present invention further provides a chair for the elderly, which includes the aforementioned chair support 100 .

[0060] The elderly chair provided by the present invention has a simple structure, more stable transmission and higher safety.

[0061] It is worth noting that the above descriptions about directionality are based on the accompanying drawings and are only for the convenience of describing the present scheme and simplifying the description. They do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. Any appropriate changes and modifications to the above embodiments fall within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. A chair support (100) for elderly people, comprising a chair frame (10), a first pushing assembly (20), an extension assembly (80), a first transmission assembly (30) and a leg assembly (70), wherein the extension assembly (80) and the first pushing assembly (20) are both connected to the chair frame (10), and the extension assembly (80) is connected to the leg assembly (70) via the first transmission assembly (30), characterized in that: The extension assembly (80) includes an adapter plate (81), and a guide groove (814) is provided on the adapter plate (81); the first transmission assembly (30) includes a first hinge (31), a second hinge (32), and a first transmission member (33) and a second transmission member (34) respectively located on both sides of the adapter plate (81); the first hinge (31) extends into the guide groove (814), and the two ends of the first hinge (31) are respectively connected to the first transmission member (33) and the second transmission member (34); the second hinge (32) is passed through and rotatably connected to the adapter plate (81), and the two ends of the second hinge (32) are respectively connected to the first transmission member (33) and the second transmission member (34); The first pushing assembly (20) is connected to the first transmission member (33), and the first pushing assembly (20) can drive the first transmission member (33) to rotate around the second hinge member (32), and drive one end of the first hinge member (31) to slide along the guide groove (814) with the second hinge member (32) as the rotation center, and the other end of the first hinge member (31) can drive the leg assembly (70) to contract or extend through the second transmission member (34); The chair frame (10) includes a second support rod (12), the first pushing assembly (20) includes a first driving member (21) hinged to the second support rod (12), and the first driving member (21) is capable of realizing the movement of the first transmission assembly (30): Driven by the first driving member (21), the first transmission member (33) rotates and drives the first hinge member (31) to slide along the guide groove (814), and the first hinge member (31) drives the second transmission member (34) to move to achieve the contraction or extension of the leg assembly (70).

2. The elderly chair support (100) according to claim 1, characterized in that: The elderly chair support (100) includes an angle adjustment component (60), the angle adjustment component (60) includes an adjustment plate (61), the adjustment plate (61) is fixedly connected to the adapter plate (81), and the adjustment plate (61) is rotatably connected to the leg component (70). The elderly chair support (100) also includes a second pushing component (40) and a second transmission component (50), the second pushing component (40) is connected to the adjustment plate (61) through the second transmission component (50), and the second pushing component (40) can drive the adjustment plate (61) to rotate relative to the second transmission component (50).

3. The elderly chair support (100) according to claim 2, characterized in that: The adapter plate (81) is bent and includes a first connecting portion (811), a second connecting portion (812), and a third connecting portion (813) respectively located on different planes. The first connecting portion (811) is connected to the chair frame (10), the second connecting portion (812) is connected to the first transmission member (33), and the third connecting portion (813) is connected to the adjustment plate (61).

4. The elderly chair support (100) according to claim 2, characterized in that: The adjustment plate (61) is provided with a support member (62), and the chair frame (10) is provided with a first buffer pad (15), and during the movement of the adjustment plate (61), the support member (62) can abut against the first buffer pad (15); and / or, A second buffer pad (16) is provided on the chair frame (10), and during the movement of the adapter plate (81), the adapter plate (81) can abut against the second buffer pad (16).

5. The elderly chair support (100) according to claim 4, characterized in that: The adjustment plate (61) and the support member (62) are fixed by riveting.

6. The elderly chair support (100) according to claim 3, characterized in that: The first pushing assembly (20) further includes a first lead screw (22) and a first lead screw nut, wherein the first lead screw nut is threadedly connected to the first lead screw (22), and the first driving member (21) is connected to the first lead screw nut, and the first driving member (21) is capable of driving the first lead screw nut to rotate so as to drive the first lead screw (22) to perform linear reciprocating motion; The second pushing assembly (40) includes a second lead screw (42), a second lead screw nut and a second driving member (41), wherein the second lead screw nut is threadedly connected to the second lead screw (42), and the second driving member (41) is connected to the second lead screw nut, and the second driving member (41) can drive the second lead screw nut to rotate to drive the second lead screw (42) to perform linear reciprocating motion.

7. The elderly chair support (100) according to claim 6, characterized in that: The first driving member (21) is a push rod motor, and / or; The second driving member (41) is a push rod motor.

8. The elderly chair support (100) according to claim 1, characterized in that: The chair frame (10) further comprises a first support rod (11), a third support rod (13) and a fourth support rod (14); the first support rod (11), the second support rod (12), the third support rod (13) and the fourth support rod (14) are connected end to end in sequence, and the first support rod (11), the second support rod (12), the third support rod (13) and the fourth support rod (14) are arranged in a rectangular shape; the first support rod (11) and the third support rod (13) are arranged opposite to each other; one end of the first support rod (11) extends outwards and forms a first reinforcement portion (111); one end of the third support rod (13) extends outwards and forms a second reinforcement portion (131).

9. The elderly chair support (100) according to claim 1, characterized in that: The elderly chair support (100) further includes a lifting assembly (90), the lifting assembly (90) including a first lifting member (91) and a second lifting member (92), the chair frame (10) is provided with a fourth connecting portion (17), the two ends of the first lifting member (91) are respectively connected to the fourth connecting portion (17) and the adapter plate (81), and the two ends of the second lifting member (92) are respectively connected to the fourth connecting portion (17) and the adapter plate (81).

10. An elderly chair, characterized in that: The elderly chair comprises the elderly chair bracket (100) according to any one of claims 1 to 9.

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