CN220442276U - Foot rest structure and old man chair seat frame - Google Patents

Abstract

The present utility model provides a footrest structure connected to an end of a seat frame body by providing a leg link assembly, comprising: the leg rest comprises a first foot rest body, a second foot rest body and a leg rest connecting rod assembly, wherein one end of the first foot rest body is connected to the leg rest connecting rod assembly, and an extending part is integrally arranged at the other end of the first foot rest body and is connected with the foot rest extending assembly; the two ends of the power connecting rod are respectively connected with the leg connecting rod assembly and the foot rest extension assembly; and the second footrest is connected with the footrest extension assembly and is driven by the power connecting rod to perform stretching and folding actions. The utility model also provides a seat frame of the old man chair, which comprises a footrest structure, a seat frame main body and a leg connecting rod assembly. The utility model has the first footrest and the second footrest, and the two footrests are in parallel positions, so that the problem of comfort footrest for people with different heights is solved.

Description

Foot rest structure and old man chair seat frame

Technical Field

The utility model relates to a footrest structure and an old man chair frame.

Background

The seat is a common seat in life. Seats typically include a backrest, armrests, and the like. Along with the improvement of living standard and the use requirement of special groups, especially the requirement of the old on the chair, the special chair for the old is derived. The chair for the aged has an adjusting function, so that the chair can be adjusted among various using states.

A seat frame is disclosed in chinese utility model application publication No. CN113229659a, application publication No. 2021, 8, 10, comprising: the base comprises a transverse supporting rod and a longitudinal supporting rod, wherein the transverse supporting rod is arranged in an extending mode along a first direction, the longitudinal supporting rod is arranged in an extending mode along a second direction, and the transverse supporting rod is connected with the longitudinal supporting rod;

the lifting unit comprises a support, a first lifting rod, a second lifting rod and a connecting sheet, wherein one end of the first lifting rod is hinged to the support, and the other end of the first lifting rod is hinged to the connecting sheet; one end of the second lifting rod is hinged to the support, and the other end of the second lifting rod is hinged to the connecting sheet, wherein the positions of the hinge points of the first lifting rod and the second lifting rod at the support are different, and the positions of the hinge points of the first lifting rod and the second lifting rod at the connecting sheet are different;

the stretching unit comprises a base plate, a lifting unit, a foot adjusting unit and a backrest adjusting unit, wherein the base plate is fixed with the connecting sheet; the power unit is arranged on the base and is respectively connected with the lifting unit and the stretching unit, the power unit comprises a driving unit, a connecting seat and a driving connecting rod, one end of the driving unit is hinged to the base, and the other end of the driving unit is hinged to the connecting seat;

the lifting unit comprises a first lifting connecting rod, a second lifting connecting rod, a third lifting connecting rod, a fourth lifting connecting rod and a seat mounting part, wherein the first end of the first lifting connecting rod is hinged with the substrate, the second end of the first lifting connecting rod is hinged with the first end of the third lifting connecting rod, the second end of the third lifting connecting rod is hinged with the first end of the seat mounting part, the second end of the seat mounting part is hinged with the first end of the fourth lifting connecting rod, the second end of the fourth lifting connecting rod is hinged with the first end of the second lifting connecting rod, and the second end of the second lifting connecting rod is connected with the substrate; the first lifting connecting rod and the second lifting connecting rod are provided with a first rotating fulcrum, and the first rotating fulcrum is positioned in the middle area of the first lifting connecting rod and/or the second lifting connecting rod. The structure of the seat frame body hereinafter is disclosed in this application, so the structure of the seat frame body will not be explained much hereinafter.

In existing sofas, the footrest is relatively simple in design, and is generally formed of only one plate, the area of which is fixed. When users of different ages sit on the sofa, the feet may not rest on the footrest for children or people with lower height; and for higher people, the lower leg can be caused to rest on the footrest, so that the problem of uncomfortable footrest is caused.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a footrest structure which is provided with a first footrest and a second footrest, wherein the two footrests are in parallel positions, so that the problem that people with different heights can feel comfortable in footrest is solved.

The aim of the utility model can be achieved by the following technical scheme: a footrest structure connected to a seat frame body end by a leg link assembly, comprising:

the leg rest comprises a first foot rest body, a second foot rest body and a leg rest connecting rod assembly, wherein one end of the first foot rest body is connected to the leg rest connecting rod assembly, and an extending part is integrally arranged at the other end of the first foot rest body and is connected with the foot rest extending assembly;

the two ends of the power connecting rod are respectively connected with the leg connecting rod assembly and the foot rest extension assembly;

and the second footrest is connected with the footrest extension assembly and is driven by the power connecting rod to perform stretching and folding actions.

Further, the leg rest extension assembly includes a first link and a second link;

the second footrest is connected with one end of each of the first link and the second link, which is far away from the extension portion.

Further, the two ends of the power connecting rod are respectively connected with the leg connecting rod assembly and the first connecting rod.

Further, in the collapsed state, the first footrest is parallel to the second footrest.

The utility model also provides a chair frame of the elder, which comprises a footrest structure, a chair frame body and a leg connecting rod assembly, wherein the leg connecting rod assembly comprises a first connecting rod, a second connecting rod, a third connecting rod connected with the end part of the first connecting rod and a fourth connecting rod connected with the end part of the second connecting rod, and one end of the power connecting rod is connected with the fourth connecting rod.

Further, the fourth linkage rod is connected with the first linkage rod through connection points.

Further, the third linkage rod, the fourth linkage rod are connected with the first footrest, and the first linkage rod, the third linkage rod, the fourth linkage rod and the first footrest form a quadrilateral connecting rod structure.

Further, the first link, the second link, the extension, and the second footrest form a quadrilateral link structure.

Further, both side ends of the seat frame body are provided with leg rest connecting ends connected with the leg connecting rod assemblies.

Compared with the prior art, the application has the advantages that: it has first footrest and second footrest, and two footrests are in parallel position, satisfy the comfortable problem of different height crowd bracket.

Drawings

FIG. 1 is a schematic overall expansion of the present utility model;

FIG. 2 is a schematic illustration of the overall contraction of the present utility model;

in the figure, 1, a seat frame main body; 2. a leg link assembly; 201. a connection point; 21. a first linkage rod; 22. a second linkage rod; 23. a third linkage rod; 24. a fourth link lever; 3. a first footrest; 31. an extension; 4. a power connecting rod; 5. a first link; 6. a second link; 7. a second footrest.

Detailed Description

The following is a specific embodiment of the present utility model and a further description of the technical solution of the present utility model is provided with reference to the accompanying drawings.

As shown in fig. 1 to 2, a footrest structure connected to an end of a seat frame body 1 by a leg link assembly 2, comprising:

a first footrest 3, one end of which is connected to the leg link assembly 2, and the other end of the first footrest 3 is integrally provided with an extension 31, and the extension 31 is connected with a footrest extension assembly;

the two ends of the power connecting rod 4 are respectively connected with the leg connecting rod assembly 2 and the leg rest extension assembly;

a second footrest 7 connected to the footrest extension assembly and configured to be extended and retracted by the drive of the power link 4.

The foot rest extension assembly comprises a first link 5 and a second link 6;

the second footrest 7 is connected to one end of each of the first and second links 5 and 6 remote from the extension 31.

The two ends of the power connecting rod 4 are respectively connected with the leg connecting rod assembly 2 and the first connecting rod 5.

In the folded state, the first footrest 3 is parallel to the second footrest 7, which is referred to herein as substantially parallel, rather than absolutely parallel, allowing for a tilt angle of + -5 deg..

The utility model also provides a seat frame of the old man chair, which comprises a footrest structure, a seat frame body 1 and a leg connecting rod assembly 2, wherein the leg connecting rod assembly 2 comprises a first connecting rod 21, a second connecting rod 22, a third connecting rod 23 connected with the end part of the first connecting rod 21 and a fourth connecting rod 24 connected with the end part of the second connecting rod 22, and one end of the power connecting rod 4 is connected with the fourth connecting rod 24.

The fourth link lever 24 is connected to the first link lever 21 by a connection point 201. Specifically, the connection point 201 may be a movable connection manner such as riveting, bolting, etc.

The third link 23, the fourth link 24 are connected to the first footrest, and the first link 21, the third link 23, the fourth link 24, and the first footrest 3 form a quadrangular link structure.

The first link 5, the second link 6, the extension 31 and the second footrest 7 form a quadrangular link structure.

Both side ends of the seat frame body 1 are provided with leg rest connecting ends connected with the leg connecting rod assemblies 2.

The replacement type foot rest can be made to the foot rest in this application, with integrated into one piece's first footrest 3 add extension 31 (first footrest 3 is to protruding formation extension 31 to one side) replace prior art's footrest to increase first connecting rod 5, second connecting rod 6 and second footrest 7, reach the purpose of extension foot rest.

The utility model provides a components of a whole that can function independently footrest structure also can be called alternative pedal extending structure, and optional dress extension bracket also can not be optional dress in the practical application, then pull down original big footrest when selecting the dress, replace for the first footrest 3 of this application, install first connecting rod 5, second connecting rod 6 and second footrest 7 again, when this application footrest department is expanded, the force application principle is: the second footrest 7 forms the quadrilateral connecting rod structure through the extension 31 of first connecting rod 5, second connecting rod 6 and first footrest 3 to be connected through the fourth movable rod 24 of power connecting rod 4 and shank link assembly 2, when shank link assembly 2 is expanded, promote first connecting rod 5 through power connecting rod 4, make second footrest 7 stretch out for first footrest 3, two footrest synchronous motion, simple structure, more smooth stable, this components of a whole that can function independently footrest structure can satisfy different height crowd's bracket comfort level simultaneously.

The technical scheme of the utility model provides a solution which is obviously different from the prior art aiming at the technical problem that the prior art solution is too single, and the technical scheme of the utility model does not relate to the parts which are the same as the prior art or can be realized by adopting the prior art, and is not repeated.

The foregoing embodiments have been described in a clear and complete manner, and it is apparent that the embodiments described are merely some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (9)

1. A footrest structure connected to a terminal end of a seat frame body (1) by providing a leg link assembly (2), characterized by comprising:

the first footrest (3) is connected to the leg connecting rod assembly (2) at one end, an extending part (31) is integrally arranged at the other end of the first footrest (3), and the extending part (31) is connected with a footrest extending assembly;

the two ends of the power connecting rod (4) are respectively connected with the leg connecting rod assembly (2) and the leg rest extension assembly;

and a second footrest (7) connected to the footrest extension assembly and driven by the power link (4) to extend and retract.

2. The footrest structure of claim 1 wherein: the foot rest extension assembly comprises a first connecting rod (5) and a second connecting rod (6);

the second footrest (7) is connected with one end of the first connecting rod (5) and one end of the second connecting rod (6) which are far away from the extension part (31) respectively.

3. The footrest structure of claim 2 wherein: and two ends of the power connecting rod (4) are respectively connected with the leg connecting rod assembly (2) and the first connecting rod (5).

4. The footrest structure as claimed in claim 1, characterized in that in the collapsed state the first footrest (3) is parallel to the second footrest (7).

5. An old man's chair seat frame, its characterized in that: comprising a footrest structure as claimed in any one of claims 1-4, a seat frame body (1) and a leg link assembly (2), said leg link assembly (2) comprising a first linkage rod (21), a second linkage rod (22), a third linkage rod (23) connected to an end of the first linkage rod (21) and a fourth linkage rod (24) connected to an end of the second linkage rod (22), said power link (4) being connected at one end to the fourth linkage rod (24).

6. An old fashioned chair seat frame as defined in claim 5 wherein: the fourth linkage rod (24) is connected with the first linkage rod (21) through connection points (201).

7. An old fashioned chair seat frame as defined in claim 6 wherein: the third linkage rod (23) and the fourth linkage rod (24) are connected with the first footrest, and the first linkage rod (21), the third linkage rod (23), the fourth linkage rod (24) and the first footrest (3) form a quadrilateral connecting rod structure.

8. The old fashioned chair seat frame of claim 7, wherein the first link (5), second link (6), extension (31) and second footrest (7) form a quadrilateral linkage structure.

9. The old fashioned chair seat frame of claim 5 wherein the two ends of the seat frame body (1) each have leg rest attachment ends that attach to leg link assemblies (2).