CN211048882U

CN211048882U - Old man's chair support and have old man's chair of this support

Info

Publication number: CN211048882U
Application number: CN201921877481.9U
Authority: CN
Inventors: 孙夕启; 吕亚辉; 徐秋; 费少强
Original assignee: Haining Meihui Machinery LLC
Current assignee: Haining Meihui Machinery LLC
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-21
Anticipated expiration: 2029-11-01

Abstract

The utility model provides an old man's chair support, including chair frame, first promotion subassembly, extension subassembly, first transmission assembly and shank subassembly, extension subassembly includes the keysets, and keysets and first promotion subassembly all are connected with the chair frame, and the keysets passes through first transmission assembly connect in shank subassembly, first promotion subassembly can drive shank subassembly shrink or extend through first transmission assembly and keysets. The utility model provides an old people chair support, the keysets is connected with the first drive assembly, the first pushing assembly can drive the leg assembly to contract or extend through the first drive assembly and the keysets; compared with the existing old people chair support, the adapter plate replaces complicated parts, and the structure of the old people chair support is simplified, so that the old people chair support is convenient to mount, the production cost is reduced, and the economic benefit is improved. The utility model also provides an old man's chair, old man's chair include foretell old man's chair support, its simple structure, and the transmission is more stable, and the security is higher.

Description

Old man's chair support and have old man's chair of this support

Technical Field

The utility model belongs to the technical field of mechanical device, in particular to geriatric chair support and geriatric chair with the same.

Background

The old man chair is the mechanical device who designs to old person's health condition, has functions such as the adjustment position of sitting of help old person and supplementary stand. However, the existing old people chair has a complex structure and more parts, so that the installation is complicated, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a support for a geriatric chair and a geriatric chair having the same, which aims to simplify the structure of the geriatric chair and reduce the production cost.

The utility model provides a chair support for the aged, which comprises a chair frame, a first pushing component, an extension component, a first transmission component and a leg component, wherein the extension component and the first pushing component are connected with the chair frame, the extension component is connected with the leg component through the first transmission component,

the extension assembly comprises an adapter plate, and a guide groove is formed in the adapter plate; the first transmission assembly comprises a first articulated piece, a second articulated piece, a first transmission piece and a second transmission piece, wherein the first transmission piece and the second transmission piece are respectively positioned on two sides of the adapter plate;

the first pushing assembly is connected to the first transmission piece, the first pushing assembly can drive the first transmission piece to rotate around the second hinge piece and drive one end of the first hinge piece to slide along the guide groove by taking the second hinge piece as a rotation center, and the other end of the first hinge piece can drive the leg assembly to contract or extend through the second transmission piece.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

In one of them embodiment, the geriatric chair support includes angle adjustment assembly, angle adjustment assembly includes the regulating plate, the regulating plate with keysets fixed connection, the regulating plate rotate connect in leg assembly, geriatric chair support still includes second promotion subassembly and second transmission assembly, the second promotes the subassembly through second transmission assembly connect in the regulating plate, the second promotes the subassembly and can drive the regulating plate is relative second transmission assembly rotates.

In one embodiment, the adapter plate is bent, and the adapter plate includes a first connecting portion, a second connecting portion and a third connecting portion, which are respectively located on different planes, wherein the first connecting portion is connected to the chair frame, the second connecting portion is connected to the first transmission member, and the third connecting portion is connected to the adjustment plate.

In one embodiment, a support is arranged on the adjusting plate, a first cushion pad is arranged on the chair frame, and the support can abut against the first cushion pad during the movement of the adjusting plate; and/or the presence of a catalyst in the reaction mixture,

be equipped with the second blotter on the chair frame in the keysets motion process, the keysets can support and lean on the second blotter.

In one embodiment, the adjustment plate is fixed to the support by riveting.

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 so as to drive the first lead screw to make a linear reciprocating motion; the second pushing assembly comprises a second lead screw, a second lead screw nut and a second driving piece, the second lead screw nut is in threaded connection with the second lead screw, the second driving piece is connected with the second lead screw nut, and the second driving piece can drive the second lead screw nut to rotate so as to drive the second lead screw to do linear reciprocating motion.

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

the second driving piece is a push rod motor.

In one embodiment, the chair frame includes a first support rod, a second support rod, a third support rod and a fourth support rod, which are sequentially connected end to end, 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 oppositely, one end of the first support rod extends outwards and forms a first reinforcement portion, and one end of the third support rod extends outwards and forms a second reinforcement portion.

In one of the implementation modes, the geriatric chair support further comprises a lifting assembly, the lifting assembly comprises a first lifting piece and a second lifting piece, the chair frame is provided with a fourth connecting portion, two ends of the first lifting piece are connected with the fourth connecting portion and the adapter plate respectively, and two ends of the second lifting piece are connected with the fourth connecting portion and the adapter plate respectively.

The utility model provides an old people chair support, the keysets is connected with the first drive assembly, the first pushing assembly can drive the leg assembly to contract or extend through the first drive assembly and the keysets; compared with the existing old people chair support, the adapter plate replaces various parts, the transmission is more stable, the structure of the old people chair support is simplified, the old people chair support is convenient to mount, the production cost is reduced, and the economic benefit is improved.

The utility model also provides an old man's chair, old man's chair includes foretell old man's chair support.

The utility model provides an old man's chair, its simple structure, the transmission is more stable, and the security is higher.

Drawings

Fig. 1 is a schematic structural view of a geriatric chair support according to an embodiment of the present invention;

FIG. 2 is a schematic view of a chair frame structure in the geriatric chair frame shown in FIG. 1;

FIG. 3 is a schematic view of a first push assembly in the geriatric chair support of FIG. 1;

FIG. 4 is a schematic structural view of an adapter plate in the geriatric chair support shown in FIG. 1;

FIG. 5 is a schematic view of a first transmission assembly and a portion of the structure of the geriatric chair support shown in FIG. 1;

FIG. 6 is a schematic view of the leg assembly of the geriatric chair support of FIG. 1;

FIG. 7 is a schematic view of the leg assembly of the geriatric chair leg shown in FIG. 1 in an extended configuration;

FIG. 8 is a schematic view of a portion of the chair frame of FIG. 1;

FIG. 9 is a schematic view of the geriatric chair support lift assembly shown in FIG. 1 in a raised state;

fig. 10 is a schematic view of a second pushing assembly in the geriatric chair support of fig. 1.

Description of reference numerals:

100. a geriatric chair support; 10. a chair frame; 11. a first support bar; 111. a first reinforcing portion; 12. a second support bar; 13. a third support bar; 131. a second reinforcement portion; 14. a fourth support bar; 15. a first cushion pad; 16. a second cushion pad; 17. a fourth connecting portion; 20. a first pushing assembly; 21. a first driving member; 22. a first lead screw; 30. a first transmission assembly; 31. a first hinge member; 32. a second hinge member; 33. a first transmission member; 34. a second transmission member; 35. a third transmission member; 36. a fourth transmission member; 40. a second pushing assembly; 41. a second driving member; 42. a second lead screw; 50. a second transmission assembly; 51. a fifth transmission member; 52. a sixth transmission member; 60. an angle adjustment assembly; 61. an adjusting plate; 62. a support member; 70. a leg assembly; 71. a first extension member; 72. a second extension member; 73. a third extension member; 74. a fourth extension member; 741. a guide block; 75. a fifth extension member; 76. a support member; 80. an extension assembly; 81. an adapter plate; 811. a first connection portion; 812. a second connecting portion; 813. a third connecting portion; 814. a guide groove; 90. a lifting assembly; 91. a first lifting member; 92. a second lifting member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an old people chair support 100 according to an embodiment of the present invention. The utility model provides an old people chair support 100, which comprises a chair frame 10, a first pushing component 20, a first transmission component 30, a second pushing component 40, a second transmission component 50, an angle adjusting component 60, a leg component 70, an extension component 80 and a lifting component 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, and the first pushing assembly 20 provides driving force for height adjustment and leg position adjustment of the geriatric chair support 100; the first transmission assembly 30 is connected with the extension assembly 80 and the leg assembly 70, and the first transmission assembly 30 is used for driving the leg assembly 70 to contract or extend so as to realize the adjustment of the leg position of the geriatric chair support 100; the second pushing assembly 40 is connected to the first transmission assembly 30, meanwhile, the second pushing assembly 40 is connected to the second transmission assembly 50, and the second pushing assembly 40 provides driving force for the angle adjustment of the backrest of the geriatric chair support 100; the second transmission assembly 50 is connected with the angle adjusting assembly 60, and the second transmission assembly 50 can enable the angle adjusting assembly 60 to rotate so as to realize the angle adjustment of the back of the geriatric chair support 100; the lifting assembly 90 is connected between the chair frame 10 and the extension assembly 80, and the lifting assembly 90 can realize the height adjustment of the seat position of the geriatric chair support 100.

In the utility model of the geriatric chair support 100, the first pushing assembly 20 drives the first transmission assembly 30, the first transmission assembly 30 drives the leg assembly 70 to extend or contract through the extending assembly 80, and the position of the leg of the geriatric chair support 100 is adjusted; the second pushing component 40 drives the extending component 80 to rotate, the extending component 80 drives the angle adjusting component 60 to rotate relative to the second transmission component 50, and the backrest position of the old chair support 100 is adjusted in angle; the first pushing assembly 20 continuously pushes the first transmission assembly 30, the first transmission assembly 30 drives the extension assembly 80, the extension assembly 80 rotates around the chair frame 10 through the lifting assembly 90, and the height of the chair seat of the old chair support 100 is adjusted.

The extension assembly 80 of the utility model of the geriatric chair support 100 is used to adjust the height of the chair seat and the angle of the backrest of the geriatric chair support 100. The extension assembly 80 comprises an adapter plate 81, the adapter plate 81 is connected with the first transmission assembly 30, compared with the existing old-people chair support, the adapter plate 81 replaces various parts, the structure of the old-people chair support 100 is simplified, the old-people chair support 100 is convenient to mount, meanwhile, the production cost is reduced, and the economic benefit is improved.

Referring to fig. 2, fig. 2 is a schematic structural view of a chair frame 10 in the geriatric chair support 100 shown in fig. 1. The chair frame 10 comprises a first support bar 11, a second support bar 12, a third support bar 13 and a fourth support bar 14; the first support rod 11, the second support rod 12, the third support rod 13 and the fourth support rod 14 are sequentially connected end to end and are surrounded to form a rectangle, wherein the first support rod 11 and the third support rod 13 are oppositely arranged, one end of the first support rod 11 extends outwards to form a first reinforcing part 111, one end of the third support rod 13 extends outwards to form a second reinforcing part 131, and the first reinforcing part 111 and the second reinforcing part 131 are arranged to improve the stability of the geriatric chair support 100; specifically, when local stress near the armrest of the geriatric chair support 100 is large, the first reinforcing part 111 or the second reinforcing part 131 can be abutted against the ground by combining with the corresponding support rod, so that the stress range is wider, the geriatric chair support 100 is prevented from being turned on one side, and potential safety hazards are eliminated.

It should be noted that the above-mentioned "the first support bar 11, the second support bar 12, the third support bar 13 and the fourth support bar 14 are connected end to end in sequence and are surrounded to form a rectangle" means that the chair frame 10 is substantially rectangular.

The first support bar 11 and the third support bar 13 are both provided with a first buffer pad 15, and the first buffer pad 15 is used for buffering the movement of the angle adjusting assembly 60. During the movement of the angle adjusting assembly 60, the angle adjusting assembly 60 can abut against the first cushion pad 15, thereby reducing the impact collision between the angle adjusting assembly 60 and the chair frame 10, and being beneficial to prolonging the service life of the geriatric chair support 100.

The two ends of the fourth supporting rod 14 are respectively provided with a second buffer 16, and the second buffer 16 is used for buffering 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, so that the impact collision between the adapter plate 81 and the chair frame 10 is reduced, and the service life of the old people chair support 100 is prolonged.

Referring to fig. 3, fig. 3 is a schematic structural view of the first pushing assembly 20 in the geriatric chair support 100 shown in fig. 1. First pushing assembly 20 includes first driving piece 21, first screw nut (not shown) and first lead screw 22, first driving piece 21 articulates in second bracing piece 12, the output of first driving piece 21 is connected with first screw nut, first screw nut cover is established and spiro union in first lead screw 22, first lead screw 22 is connected with first drive assembly 30, first driving piece 21 can drive first screw nut and rotate, and drive first lead screw 22 through first screw nut and do reciprocal linear motion, thereby realize that first lead screw 22 drives first drive assembly 30 and move.

In the embodiment, the first driving member 21 is selected as a push rod motor, and the push rod motor has the advantages of small volume, high precision, good self-locking performance and the like, and is suitable for the geriatric chair support 100; it will be appreciated that in other embodiments, the first drive member 21 may alternatively be other drive elements.

Referring to fig. 4, fig. 4 is a schematic structural view of the adapter plate 81 in the geriatric chair support 100 shown in fig. 1. The adapter plate 81 comprises a first connecting part 811, a second connecting part 812 and a third connecting part 813, wherein the first connecting part 811 is used for connecting the chair frame 10, the second connecting part 812 is used for connecting the first transmission assembly 30, and the third connecting part 813 is used for connecting the angle adjusting assembly 60; the first connecting portion 811, the second connecting portion 812 and the third connecting portion 813 are located on different planes respectively, and the mutual clearances among the first connecting portion 811, the second connecting portion 812 and the third connecting portion 813 allow movement of each transmission member in the first transmission assembly 30, so that excessive friction caused by excessive compactness among the transmission members is prevented, smooth and stable transmission of the first transmission assembly 30 is facilitated, and stable adjustment of the geriatric chair support 100 is further facilitated.

Referring to fig. 5, fig. 5 is a schematic view of a first transmission assembly 30 and a partial structure of the geriatric chair support 100 shown in fig. 1. 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; the second connecting portion 812 is provided with a guide groove 814, the first hinge 31 is disposed in the guide groove 814, the first transmission piece 33 and the second transmission piece 34 are disposed on two sides of the adapter plate 81, one end of the first hinge 31 is connected with the first transmission piece 33, the other end of the first hinge 31 is connected with the second transmission piece 34, the second hinge 32 is inserted into and rotatably connected to the adapter plate 81, and two ends of the second hinge 32 are connected with the first transmission piece 33 and the second transmission piece 34 respectively; the first lead screw 22 is hinged to the first transmission member 33, and under the driving 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, and simultaneously the first hinge member 31 drives the second transmission member 34 to move, so 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.

In the present embodiment, the first hinge 31 is rotationally connected to the first transmission member 33 and the second transmission member 34, and the second hinge 32 is rotationally connected to the first transmission member 33 and the second transmission member 34; it is understood that, in other embodiments, the first hinge 31 and the first transmission member 33 and the second transmission member 34 may be fixedly connected, and the second hinge 32 and the first transmission member 33 and the second transmission member 34 may also be fixedly connected, as long as the above-mentioned transmission effect can be achieved, which is not limited specifically.

The first transmission component 30 further comprises a third transmission piece 35 and a fourth transmission piece 36, the third transmission piece 35 and the fourth transmission piece 36 are both arranged on the second transmission piece 34 side of the adapter plate 81, two ends of the third transmission piece 35 are respectively hinged to the second transmission piece 34 and the fourth transmission piece 36, and meanwhile, the fourth transmission piece 36 is hinged to the angle adjusting component 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 be linked, and the first transmission member 33, the second transmission member 34, the third transmission member 35 and the fourth transmission member 36 form a link transmission.

Referring to fig. 6, fig. 6 is a schematic structural view of the leg assembly 70 in the geriatric chair support 100 shown in fig. 1. Leg component 70 includes first extension piece 71, second extension piece 72, third extension piece 73, fourth extension piece 74, fifth extension piece 75 and supporting piece 76, the one end of first extension piece 71 articulates in third driving medium 35, the other end of first extension piece 71 articulates in second extension piece 72, the both ends of second extension piece 72 articulate angle adjusting component 60 and third extension piece 73 respectively simultaneously, the both ends of fourth extension piece 74 articulate angle adjusting component 60 and fifth extension piece 75 respectively, third extension piece 73 articulates with fourth extension piece 74, be equipped with guide block 741 on the fourth extension piece 74, the guide block can support and lean on third extension piece 73, third extension piece 73 and fifth extension piece 75 press from both sides and articulate in supporting piece 76.

Referring to fig. 7, fig. 7 is a schematic structural view of the leg assembly 70 in the geriatric chair support 100 shown in fig. 1 in an extended state. When leg assembly 70 extends the motion, third driving medium 35 drives first extension 71 motion, first extension 71 drives second extension 72 and rotates clockwise around angle adjusting part 60, second extension 72 drives third extension 73 motion, third extension 73 drives fourth extension 74 and rotates clockwise around angle adjusting part 60, fourth extension 74 drives fifth extension 75 motion, third extension 73 and fifth extension 75 drive supporting piece 76 clockwise jointly, realize leg assembly 70's extension.

When the leg assembly 70 performs the contraction movement, the movement condition is opposite to that described 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 adjusting 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 adjusting assembly 60, the fourth stretching member 74 drives the fifth stretching member 75 to move, and the third stretching member 73 and the fifth stretching member 75 drive the supporting member 76 to rotate counterclockwise together to realize the contraction of the leg assembly 70.

Referring to fig. 8 and 9 together, fig. 8 is a schematic view of a portion of the geriatric chair support 100 shown in fig. 1, and fig. 9 is a schematic view of the geriatric chair support 100 shown in fig. 1 with the lifting assembly 90 in a lifted state. The geriatric chair support 100 further comprises a lifting assembly 90, the lifting assembly 90 comprising 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 connecting portion 17, two ends of the first lifting piece 91 are respectively rotatably connected to the fourth connecting portion 17 and the first connecting portion 811 of the adapter plate 81, and two ends of the second lifting piece 92 are respectively rotatably connected to the fourth connecting portion 17 and the first connecting portion 811 of the adapter plate 81; under the action of the first pushing assembly 20, when the leg assembly 70 finishes retracting, the first hinge 31 is located at the end of the guide groove 814, at this time, if the first pushing assembly 20 continues to push the first transmission member 33, the first transmission member 33 can drive the first hinge 31 to abut against the guide groove 814, under the action of the first driving member 21, the first lead screw 22 applies force to the first hinge 31 through the first transmission member 33, the first hinge 31 applies force to the connection plate 81, and the connection plate 81 drives the first lifting member 91 and the second lifting member 92 to rotate and lift relative to the chair frame 10, so that the high-position adjustment of the geriatric chair support 100 is realized; when the geriatric chair support 100 is adjusted from the high position to the low position, along with the continuous force unloading of the first pushing assembly 20, the moving direction of the first pushing assembly 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 piece 91 and the second lifting piece 92, so that the height adjustment of the seat of the geriatric chair support 100 is realized.

Referring to fig. 10, fig. 10 is a schematic structural view of the second pushing assembly 40 in the geriatric chair support 100 shown in fig. 1. The second pushing assembly 40 includes a second driving member 41, a second screw nut (not shown) and a second screw 42, the second driving member 41 is hinged to the adapter plate 81, an output end of the second driving member 41 is connected to the second screw nut, the second screw nut is sleeved on the second screw 42 and screwed to the second screw 42, the second screw 42 is connected to the second transmission assembly 50, and the second driving member 41 can drive the angle adjusting assembly 60 to rotate relative to the second transmission assembly 50 to adjust the backrest angle of the geriatric chair support 100.

In this embodiment, the second driving member 41 is a push rod motor, which has the advantages of small size, high precision, good self-locking performance, and the like, and is suitable for the geriatric chair support 100; it will be appreciated that in other embodiments, the second drive member 41 may alternatively be other drive elements.

The angle adjusting assembly 60 comprises an adjusting plate 61, the adjusting plate 61 is fixedly connected with an adapter plate 81, the adjusting plate 61 is hinged with a second extending piece 72, a fourth extending piece 74 and a fourth transmission piece 36, a supporting piece 62 is arranged on the adjusting plate 61, and the supporting piece 62 can abut against the first cushion pad 15; the second transmission assembly 50 comprises a fifth transmission piece 51 and a sixth transmission piece 52, one end of the second lead screw 42 is hinged to the fifth transmission piece 51, the fifth transmission piece 51 is fixedly connected with the sixth transmission piece 52, and the sixth transmission piece 52 is hinged to the adjusting plate 61; under the effect of the second driving element 41, the second screw 42 can push the fifth transmission element 51, the reaction force of the fifth transmission element 51 to the second pushing assembly 40 acts on the adapter plate 81, the adapter plate 81 rotates relative to the first lifting element 91 and the second lifting element 92, and meanwhile the adapter plate 81 drives the adjusting plate 61 to rotate relative to the sixth transmission element 52, so that the angle adjustment of the adjusting plate 61 is realized, and the angle adjustment of the backrest of the geriatric chair support 100 is further realized.

In the embodiment, the adjusting plate 61 and the supporting member 62 are riveted, so that the connection stability between the adjusting plate 61 and the supporting member 62 is enhanced, and the stability of the geriatric chair support 100 is improved; it is understood that in other embodiments, the adjustment plate 61 and the support 62 may be connected by other means such as adhesive.

The components of the geriatric chair support 100 are symmetrical, and the above description is only directed to the mechanism on one side of the geriatric chair support 100 to facilitate understanding of the present solution.

In the utility model of the old people chair support 100, the adapter plate 81 is connected with 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 old people chair support, the adapter plate 81 replaces complicated parts, the transmission is more stable, the structure of the old people chair support 100 is simplified, the old people chair support 100 is convenient to mount, the production cost is reduced, and the economic benefit is improved.

The utility model also provides an old man's chair, old man's chair includes foretell old man's chair support 100.

It should be noted that the above descriptions regarding directionality are based on the drawings and are only for convenience of describing the present solution and simplifying the description, but not for indicating or implying that the indicated components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. An old people chair support (100) comprising a chair frame (10), a first pushing assembly (20), an extending assembly (80), a first transmission assembly (30) and a leg assembly (70), wherein the extending assembly (80) and the first pushing assembly (20) are both connected with the chair frame (10), the extending assembly (80) is connected with the leg assembly (70) through the first transmission assembly (30), characterized in that,

the stretching assembly (80) comprises an adapter plate (81), and a guide groove (814) is formed in the adapter plate (81); the first transmission assembly (30) comprises a first hinged part (31), a second hinged part (32), a first transmission part (33) and a second transmission part (34) which are respectively positioned at two sides of the adapter plate (81), the first hinged part (31) extends into the guide groove (814), two ends of the first hinged part (31) are respectively connected to the first transmission part (33) and the second transmission part (34), the second hinged part (32) penetrates through and is rotatably connected to the adapter plate (81), and two ends of the second hinged part (32) are respectively connected to the first transmission part (33) and the second transmission part (34);

the first pushing assembly (20) is connected to the first transmission piece (33), the first pushing assembly (20) can drive the first transmission piece (33) to rotate around the second hinge piece (32) and drive one end of the first hinge piece (31) to slide along the guide groove (814) by taking the second hinge piece (32) as a rotation center, and the other end of the first hinge piece (31) can drive the leg assembly (70) to contract or extend through the second transmission piece (34).

2. The geriatric chair support (100) according to claim 1, wherein the geriatric chair support (100) includes an angle adjustment assembly (60), the angle adjustment assembly (60) includes an adjustment plate (61), the adjustment plate (61) is fixedly connected with the adapter plate (81), the adjustment plate (61) is rotatably connected to the leg assembly (70), the geriatric chair support (100) further includes a second pushing assembly (40) and a second transmission assembly (50), the second pushing assembly (40) is connected to the adjustment plate (61) through the second transmission assembly (50), and the second pushing assembly (40) can drive the adjustment plate (61) to rotate relative to the second transmission assembly (50).

3. The geriatric chair support (100) according to claim 2, wherein the adaptor plate (81) is bent, the adaptor plate (81) comprises a first connecting portion (811), a second connecting portion (812) and a third connecting portion (813) which are 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 geriatric chair support (100) according to claim 2, wherein a support (62) is provided on the adjustment plate (61) and a first cushion (15) is provided on the chair frame (10), the support (62) being able to bear against the first cushion (15) during movement of the adjustment plate (61); and/or the presence of a catalyst in the reaction mixture,

the chair frame (10) is provided with a second cushion pad (16), and in the movement process of the adapter plate (81), the adapter plate (81) can abut against the second cushion pad (16).

5. The geriatric chair support (100) according to claim 4, wherein the adjustment plate (61) is fixed to the support (62) by riveting.

6. The geriatric chair support (100) according to claim 3, wherein the first pushing assembly (20) comprises a first lead screw (22), a first lead screw nut and a first driving member (21), the first lead screw nut is in threaded connection with the first lead screw (22), the first driving member (21) is connected with the first lead screw nut, and the first driving member (21) can drive the first lead screw nut to rotate so as to drive the first lead screw (22) to reciprocate linearly; the second pushing assembly (40) comprises a second lead screw (42), a second lead screw nut and a second driving piece (41), the second lead screw nut is in threaded connection with the second lead screw (42), the second driving piece (41) is connected with the second lead screw nut, and the second driving piece (41) can drive the second lead screw nut to rotate so as to drive the second lead screw (42) to do linear reciprocating motion.

7. The geriatric chair support (100) according to claim 6, wherein the first drive (21) is a push rod motor, and/or;

the second driving part (41) is a push rod motor.

8. The geriatric chair support (100) according to claim 1, wherein the chair frame (10) includes a first support bar (11), a second support bar (12), a third support bar (13) and a fourth support bar (14) connected end to end in sequence, the first support bar (11), the second support bar (12), the third support bar (13) and the fourth support bar (14) are arranged in a rectangular shape, the first support bar (11) and the third support bar (13) are arranged oppositely, one end of the first support bar (11) extends outwards to form a first reinforcement portion (111), and one end of the third support bar (13) extends outwards to form a second reinforcement portion (131).

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

10. A geriatric chair, characterised in that the geriatric chair comprises the geriatric chair support (100) according to any one of claims 1 to 9.