ES3039518T3 - Iron rack used for stand assist recliner and operating method therefor - Google Patents

Abstract

An iron support used for a recliner with lift-assist and a method of operating the same, wherein the iron support used for a recliner with lift-assist comprises a tilting support (5), a base support (6), an extendable support (1), a swivel bar (2), an upper support assembly, and a first electric push bar (24); two sides of a mid-portion of the tilting support (5) are articulated with and cooperate with the base support (6) such that a rear end of the tilting support (5) overlaps a rear end of the base support (6); a front end of the base support (6) overlaps a front end of the tilting support (5); a rear end of the upper support assembly is articulated with and cooperates with the rear end of the base support (6); the swivel bar (2) is disposed on a front end of the upper support assembly, and two ends of the swivel bar (2) drive and cooperate with the extendable support (1); The front end of the upper frame assembly has a support assist stop (83), and the underside of the end portion of the swivel bar (2) has a support assist bracket (23) that engages with the support assist stop (83); the rear of the upper frame assembly further has a swivel bar limiting stop (81); the front end of the first electric push bar (24) is hinged and cooperates with the middle portion of the swivel bar (2), and the rear end of the first electric push bar (24) is hinged and cooperates with the rear end of the angled bracket (5), such that the first electric push bar (24) is positioned obliquely between the swivel bar (2) and the angled bracket (5).

Description

DESCRIPTION

Iron frame used for standing assistance reclining chair and method of operation thereof

Technical field

The present invention relates to the technical field of sofa accessories, and in particular to an iron frame for a standing-assist reclining armchair and a method of operation thereof.

Background

Reclining chairs are essential furniture in many homes. With the continuous improvement of people's living standards, electric reclining sofas are gradually becoming more common in everyday homes. An electric reclining sofa is a sofa with an automatically adjustable backrest. The cover is usually made of high-quality genuine leather. The filling is high-end sponge. The frame is supported by an iron frame of the retractable recliner. Electric reclining sofas are modern and attractive and are widely used in homes, businesses, and other places. Electric reclining sofas represent a new chapter in the entertainment and furniture industries. An electric reclining sofa can ingeniously integrate furniture practicality, entertainment appeal, and high-tech automated design. Examples of such recliners are known from documents US2014/291950, DE4408458, DE20207316, and/or US2001/035668.

An existing iron frame for a recliner typically has a flat reclining position, a cross-legged position, an upright sitting position, and similar positions. Many iron frames for recliners, for example, those disclosed in Chinese patent publications (granted) No. CN202892335U, No. CN20353883U, and No. CN203314481U, have the above functions. The iron frames for recliners disclosed in the above patent documents do not have a standing assistance function. It is very inconvenient for some elderly and disabled people to use such iron frames for a recliner. To overcome the aforementioned disadvantages, Chinese patent publication (granted) No. CN203986974U discloses a dual-motor drive mechanism for a recliner chair, comprising a base, a first drive head, a second drive head, a tail adjustment support assembly, and a middle adjustment support assembly arranged on the base. The first drive head actuates the tail adjustment support assembly to allow it to enter an upright, flat, or reclined state. The middle adjustment support assembly is correspondingly connected to a portion of the front adjustment linkage. The second drive head actuates the middle adjustment support assembly to raise or lower it, allowing it to enter an upright or flat, and actuates the portion of the front adjustment linkage to allow it to enter an extended or retracted state. In the retracted state, the front adjustment linkage is locked by the rear adjustment support assembly, and in the extended state, the front adjustment linkage is released by the rear adjustment support assembly. The dual-motor drive mechanism for a recliner can implement various functions such as extending and retracting the recliner footrest, raising and lowering the recliner frame, tilting and raising the backrest, and similar actions. Some users need to recline with their feet higher than their head to improve blood flow from their feet to their head or achieve other related goals. Existing recliner designs cannot implement these functions.

Summary

The technical problem to be solved in the present invention is to provide an iron frame for a standing-assist reclining chair that has a simple structure and can implement the function of keeping the feet higher than the head and a method of operation thereof, according to claims 1 and 7.

To solve the above technical problem, the present invention provides an iron frame for a standing-assist reclining chair, comprising: an inclined support, a base frame, a telescopic support, a rotating rod, an upper frame assembly, and a first electric push rod, wherein two sides of a middle portion of the inclined support are correspondingly hinged to the base frame, such that a tail end of the inclined support rests on a tail end of the base frame, and a front end of the base frame rests on a front end of the inclined support; a tail end of the upper frame assembly is articulated correspondingly to the tail end of the base frame, the rotation rod is arranged above a front portion of the upper frame assembly, two ends of the rotation rod are in transmission fit with the telescopic support, a stand-assist stop block is arranged at a front end of the upper frame assembly, a stand-assist support fitting the stand-assist stop block is arranged on a lower side of an end portion of the rotation rod, a rotation rod limit block is further arranged at a tail portion of the upper frame assembly, a front end of the first electric push rod is articulated correspondingly to a middle portion of the rotation rod, and a tail end of the first electric push rod is articulated correspondingly to the tail end of the inclined support, so that the first electric push rod is arranged obliquely between the rotation rod and the inclined support; During assembly, the first electric push rod is in an initial state, a telescopic footrest assembly is in a retracted state, and the inclined support and base frame are arranged horizontally; when the first electric push rod retracts, the rotating rod moves towards the rotating rod limit block, and the rotating rod drives the telescopic footrest assembly to unfold to form a flat lying state; when the rotating rod moves to touch the rotating rod limit block, the telescopic footrest assembly no longer extends, and if the first electric push rod continues to retract, the first electric push rod pulls the tail end of the inclined support to lift it, so that the front end of the inclined support forms a support, and the front end of the base frame rises to form a raised lying position state; And when the first electric push rod is extended, the inclined support and telescopic footrest assembly are reset, the first electric push rod continues to extend upwards obliquely to allow the stand-assist support to touch the stand-assist stop block, and the stand-assist support drives the upper frame assembly to rotate around a tail end of the stand-assist support to form a stand-assist position.

Furthermore, the upper frame assembly includes an H-shaped support, an inclined linking element, and a standing-assist linking element. The base frame vertical braces are fixed to two sides of the base frame tail end. The H-shaped support includes a cross H-shaped support brace and a side H-shaped support brace fixed to two ends of the cross H-shaped support brace. One tail end of the side H-shaped support brace is correspondingly hinged to the bottom of the base frame vertical brace. A standing-assist vertical brace is fixed to one tail end of each standing-assist linking element. A front end of the side H-shaped support brace is correspondingly hinged to the bottom of the standing-assist vertical brace. One tail end of each inclined linking element is correspondingly hinged to an upper end of the corresponding base frame vertical brace. corresponding to a middle portion of the vertical standing-assist reinforcement, so that the H-shaped side support reinforcement, the vertical standing-assist reinforcement, the inclined linking element, and the vertical base frame reinforcement form a quadrilateral structure.

Furthermore, the telescopic support includes two symmetrically arranged side supports; a telescopic footrest assembly is arranged at a front end of each side support; a telescopic backrest assembly is arranged at a rear end of each side support; a side support drive assembly is arranged in a middle portion of each side support; a support link is further arranged at the front end of each side support; an upper end of the support link is articulated correspondingly to the side support; a lower end of the support link is articulated correspondingly to the vertical standing support; rotation link elements are fixedly arranged at the two ends of the rotation rod, respectively; a fixed link element is fixedly arranged on an inner side of each side support; the rotation link element includes a front connecting end, a rear connecting end, and a rotation connecting end distributed in a triangular shape; the rotation connecting end is articulated correspondingly to the lower part of the fixed link element, and the front connecting end is in transmission adjustment with the telescopic footrest assembly, so that the front connecting end is able to actuate the telescopic footrest assembly to extend or retract during rotation of the swivel rod.

Furthermore, the iron frame for a stand-assist recliner further includes an armrest support, wherein the armrest support includes a cross armrest support brace and a side armrest support brace fixed at two ends of the cross armrest support brace, an armrest linking element is arranged on an inner side of a front portion of the side armrest support brace, one end of the armrest linking element is articulated correspondingly to the side armrest support brace, the other end is articulated correspondingly to an outer side of the side brace, the two ends of the cross armrest support brace are arranged under the middle portion of the side brace, the two ends of the cross armrest support brace are fixedly connected to the stand-assist linking element, the cross armrest support brace is in drive alignment with the side brace drive assembly, and the side brace drive assembly is in drive alignment with the end of rear connection of the rotating link element, so that the rear connecting end is able to drive the side reinforcement drive assembly to move during rotation of the rotating rod.

Furthermore, the side reinforcement drive assembly includes a first linking element and a second linking element arranged in an inverted A shape. The thrust linking elements are fixed at the two ends of the armrest support cross brace. An upper end of the first linking element is articulated to the side brace, a tail end of the first linking element is articulated to a lower end of the second linking element, an upper end of the second linking element is articulated to the rear connecting end, and a middle portion of the first linking element is articulated to a tail end of the thrust linking element. This allows the rotating rod to drive the side reinforcement drive assembly and the telescopic support to move.

Furthermore, the telescopic footrest assembly includes a first footrest linkage and a second footrest linkage arranged in parallel, a third footrest linkage and a fourth footrest linkage arranged in parallel, a footrest front brace, and a footrest drive rod. The tail ends of the first footrest linkage and the second footrest linkage are correspondingly articulated to a front end of the side brace. A tail end of the third footrest linkage is correspondingly articulated to a front end of the first footrest linkage. A tail end of the fourth footrest linkage is correspondingly articulated to a front end of the second footrest linkage. The front ends of the third footrest linkage and the fourth footrest linkage are correspondingly articulated to the footrest front brace. A footrest rotation pin is arranged in the middle portion of the first footrest linking element, a middle portion of the fourth footrest linking element is correspondingly articulated to the footrest rotation pin, a tail end of the footrest transmission linking element is correspondingly articulated to the front connecting end of the rotation linking element, and a front end of the footrest transmission linking element is correspondingly articulated to a middle portion of the second footrest linking element, so that the rotation linking element is able to drive the footrest transmission linking element and the footrest rotation pin to move, and the transformation and expansion of the first footrest linking element, the second footrest linking element, the third footrest linking element, and the fourth footrest linking element are implemented.

Furthermore, the telescopic backrest assembly includes a first backrest linkage element, a second backrest linkage element, and a third backrest linkage element. A lower end of the first backrest linkage element is fixedly connected to a tail end of the side brace. An upper end of the first backrest linkage element is correspondingly hinged to a front end of the second backrest linkage element. A rear end of the second backrest linkage element is correspondingly hinged to an upper end of the third backrest linkage element. A cross-backrest brace is fixedly arranged between two third backrest linkage elements. When moving, the cross-backrest brace is able to actuate the first backrest linkage element, the second backrest linkage element, and the third backrest linkage element to extend or retract.

Furthermore, the iron frame for a standing-assist reclining chair further includes a second electric push rod, wherein a front end of the second electric push rod is articulated correspondingly to the middle portion of the rotation rod, and a tail end of the second electric push rod is articulated correspondingly to a middle portion of the backrest cross brace, so that the second electric push rod is able to drive the telescopic backrest assembly to extend or retract.

In addition, the damping blocks are arranged on two sides of the tail end of the base frame and two sides of the front end of the base frame, and the swivel casters are arranged on two sides of the front end of the inclined support.

A method of operation for the above iron frame for a standing-assist reclining chair includes the following steps:

A. an upright sitting position: the first electric push rod is in an initial state, the inclined support and base frame are in a horizontal state, and the telescopic footrest assembly is in a retracted state, so that the upright seat is implemented;

B. a flat lying position: the first electric push rod is initiated to allow the first electric push rod to retract, the first electric push rod retracts to drive the rotation rod to move towards the rotation rod limit block, the rotation rod drives the rotation linkage to rotate, the rotation linkage drives the telescopic footrest assembly to unfold and form a flat lying state, and when the rotation rod moves to touch the rotation rod limit block, the telescopic footrest assembly no longer extends;

C. a raised prone position: the first electric push rod continues to retract, the rotation rod limit block prevents the rotation rod from moving, and the first electric push rod pulls the tail end of the inclined support upward, so that the front end of the inclined support forms a support, and the front end of the base frame rises to form a raised prone position; and

D. A stand-assist position: When the first electric push rod is extended, the inclined support and telescoping footrest assembly are reset, the first electric push rod continues to extend upwards obliquely to allow the stand-assist support to touch the stand-assist stop block, and the stand-assist support drives the upper frame assembly to rotate around a tail end of the stand-assist support to form a stand-assist position.

The technical effects of the present invention are as follows: (1) Compared to the prior art, in the iron frame for a reclining standing-assistance chair of the present invention, the inclined support is arranged so that, after being deployed, the telescopic support is actuated by the first electric push rod to raise the front end of the base frame, so that when a user lies down, the function of keeping the feet higher than the head can be implemented, providing the iron frame with additional functions. (2) Swivel casters are arranged to implement a sliding adjustment between the front end of the inclined support and the floor, to reduce frictional resistance. (3) The rotating linkage element is provided with three connecting ends, so that three operating modes can be implemented, namely, a flat lying position, a resting lying position, and a standing-assistance position with only one electric push rod, and it has a simple structure and varied functions.

Brief description of the drawings

The present invention is further described in detail below with reference to the drawings attached to this specification.

Figure 1 is a schematic three-dimensional structural diagram of an iron frame for a standing assistance reclining chair according to the present invention.

Figure 2 is a schematic structural diagram of an iron frame for a standing-assist reclining chair in a seated position according to the present invention.

Figure 3 is a schematic structural diagram of an iron frame for a standing-assist reclining chair in a flat lying state according to the present invention.

Figure 4 is a schematic structural diagram of an iron frame for a standing-assist reclining chair that is in a reclined upright position according to the present invention.

Figure 5 is a schematic structural diagram of an iron frame for a standing-assist reclining chair in a standing-assist state according to the present invention.

Figure 6 is a schematic structural exploded view of an iron frame for a reclining standing assistance chair according to the present invention.

Figure 7 is a schematic three-dimensional structural diagram of a telescopic support and a rotating rod.

Figure 8 is a side view of the telescopic support.

Figure 9 is an assembled structural schematic view of an H-shaped support, an inclined support, a base frame, an inclined linking element, and a standing-assist linking element.

Figure 10 is a schematic structural exploded view of an H-shaped support, an inclined support, a base frame, an inclined linking element, and a standing-assist linking element.

In the figures:

telescopic support 1, side reinforcement 11,

first backup link element 121, second backup link element 122, third backup link element 123, backup cross brace 124, backup connection support 125,

rotational link element 13, rotational connection end 131, front connection end 132, rear connection end 133

first linking element 141, second linking element 142,

fixed linking element 15, support linking element 16, armrest linking element 17,

first footrest linking element 181, second footrest linking element 182, third footrest linking element 183, fourth footrest linking element 184, footrest front reinforcement 185, footrest rotation pin 186, footrest drive rod 187,

rotation rod 2, first connecting frame 21, second connecting frame 22, standing assistance support 23, first electric push rod 24, second electric push rod 25,

armrest support 3, armrest support cross reinforcement 33, armrest support side reinforcement 32, push link element 33,

H-shaped support 4, transverse reinforcement of H-shaped support 41, lateral reinforcement of H-shaped support 42,

inclined support 5, inclined support front reinforcement 51, inclined support rear reinforcement 52, inclined support side reinforcement 53, articulated support 54, swivel caster 55, limit block 56, and

base frame 6, front reinforcement of base frame 64, rear reinforcement of base frame 62, side reinforcement of base frame 63, vertical reinforcement of base frame 64, damping block 65, inclined linking element 7, stand-up assist linking element 8, rotation rod limit block 81, vertical stand-up assist reinforcement 82, and stand-up assist stop block 83.

Detailed description

Implementation 1

As shown in Figures 1 and 6, an iron frame for a standing-assist reclining chair in this embodiment includes an inclined support 5, a base frame 6, a telescopic support 1, a rotating rod 2, an upper frame assembly, a first electric push rod 24, a second push rod 25, and an armrest support 3.

As shown in Figures 9 and 10, the base frame 6 includes a front base frame brace 61, a rear base frame brace 62, and two side base frame braces 63 arranged on two sides. Two ends of the front base frame brace 61 are welded and attached to the front ends of the two side base frame braces 63, respectively. Two ends of the rear base frame brace 62 are welded and attached to the rear portions of the two side base frame braces 63 to form a rectangular base frame. The damping blocks 65 are arranged at the two ends of the rear reinforcement of the base frame 62 and the two ends of the front reinforcement of the base frame 61, respectively, so that the base frame 6 can touch the ground by means of the damping blocks 65. The vertical reinforcements of the base frame 64 that extend upwards are arranged at the rear portions of the two side reinforcements of the base frame 63, respectively.

As shown in Figures 9 and 10, the inclined support 5 includes a front inclined support brace 51, a rear inclined support brace 52, and two side inclined support braces 53 arranged on two sides. Two ends of the front inclined support brace 51 are welded and fixed to the front ends of the two side inclined support braces 53, respectively. Two ends of the rear inclined support brace 52 are welded and fixed to the rear portions of the two side inclined support braces 53 to form a rectangular inclined support frame. Swivel casters 55 are arranged at the two ends of the front inclined support brace 51. The outer sides of the middle portions of the side inclined support braces 53 are correspondingly hinged to the middle portions of the inner sides of the side base frame braces 63 respectively, and the limit blocks 56 are arranged projecting from the two ends of the rear inclined support brace 52, so that the limit block 56 at one end of the tail of the inclined support 5 rests on the rear base frame brace 62 at a tail end of the base frame 6, and the front base frame brace 61 at a front end of the base frame 6 rests on a front portion of the side inclined support brace 53 of the inclined support 5. A hinged support 54 is arranged in a middle portion of the rear inclined support brace 52.

As shown in Figures 9 and 10, the upper frame assembly includes an H-shaped support 4, a pair of inclined linking elements 7, and a pair of standing-assist linking elements 8. The H-shaped support 4 includes a cross-support H-shaped reinforcement 41 and side-support H-shaped reinforcements 42 fixed at two ends of the cross-support H-shaped reinforcement 41. The tail ends of the side-support H-shaped reinforcements 42 are correspondingly hinged to the lower portions of the corresponding base frame vertical reinforcements 64, respectively. A vertical standing-assist brace 82 is fixedly arranged at a tail end of each standing-assist linking element 8. A front end of the H-shaped side support brace 42 is correspondingly hinged to the bottom of the vertical standing-assist brace 82, a tail end of each inclined linking element 7 is correspondingly hinged to a top end of the corresponding base frame vertical brace 64, and a front end of the inclined linking element 7 is correspondingly hinged to a middle portion of the vertical standing-assist brace 82, so that the H-shaped side support brace 42, the vertical standing-assist brace 82, the inclined linking element 7, and the base frame vertical brace 64 form a quadrilateral structure.

As shown in Figures 7 and 8, the telescopic support 1 includes two symmetrically arranged side braces 11. A telescopic footrest assembly is located at a front end of each side brace 11, a telescopic backrest assembly is located at a rear end of each side brace 11, and a side brace drive assembly is located in a mid-portion of each side brace 11. The rotation rod 2 is located on an upper side of a front portion of the stand-assist linkage 8, rotation linkages 13 are fixed to two ends of the rotation rod 2, and a fixed linkage 15 is fixed to an inner side of each side brace 11. The rotation linkage 13 includes a front connecting end 132, a rear connecting end 133, and a rotation connecting end 131, which are arranged in a triangular pattern. The rotating connecting end 131 is articulated correspondingly to the lower part of the corresponding fixed linking element 13. A support linking element 16 is further arranged at the front end of each side reinforcement 11. An upper end of the support linking element 16 is articulated correspondingly to the side reinforcement 11, and a lower end of the support linking element 16 is articulated correspondingly to the vertical standing-assistance reinforcement 82.

A telescopic footrest assembly includes a first footrest linkage 181 and a second footrest linkage 182 arranged in parallel, a third footrest linkage 183 and a fourth footrest linkage 184 arranged in parallel, a footrest front brace 185, and a footrest drive bar 187. The tail ends of the first footrest linkage 181 and the second footrest linkage 182 are correspondingly articulated to a front end of the side brace 11, a tail end of the third footrest linkage 183 is correspondingly articulated to a front end of the first footrest linkage 181, a tail end of the fourth footrest linkage 184 is correspondingly articulated to a front end of the second footrest linkage 182, and the The front ends of the third footrest linkage 183 and the fourth footrest linkage 184 are correspondingly articulated to the front footrest reinforcement 185. A footrest rotation pin 186 is arranged in the middle portion of the first footrest linkage 181. A middle portion of the fourth footrest linkage 184 is correspondingly articulated to the footrest rotation pin 186, a tail end of the footrest transmission linkage 187 is correspondingly articulated to the front connecting end 132 of the rotation linkage 13, and a front end of the footrest transmission linkage 187 is correspondingly articulated to a middle portion of the second footrest linkage 182, so that the rotation rod 2 and the rotation linkage 13 are able to actuate the transmission linkage 187. of the footrest and footrest rotation pin 186 to move, and the transformation and expansion of the first footrest linking element 181, the second footrest linking element 182, the third footrest linking element 183, and the fourth footrest linking element 184 are implemented.

As shown in Figure 6, the iron frame for a standing-assistance recliner further includes an armrest support 3. The armrest support 3 includes a cross armrest support brace 31 and a side armrest support brace 32 fixed to two ends of the cross armrest support brace 31, and an armrest connecting element 17 is arranged on an inner side of a front portion of the side armrest support brace 32. One end of the armrest connecting element 17 is hinged to the side armrest support brace 32, and the other end is hinged to an outer side of the side brace 11. The two ends of the cross armrest support brace 31 are arranged below the middle portion of the side brace 11, and the two ends of the cross armrest support brace 31 are welded and fixed to the assistive connecting element. stand up 8, and the push linkage elements 33 are fixedly arranged at both ends of the cross brace of armrest support 31. The side brace drive assembly includes a first linkage element 141 and a second linkage element 142 which are arranged in an inverted A shape. An upper end of the first linking element 141 is correspondingly articulated to the side reinforcement 11, a tail end of the first linking element 141 is correspondingly articulated to a lower end of the second linking element 142, an upper end of the second linking element 142 is correspondingly articulated to the rear connecting end 133, and a middle portion of the first linking element 141 is correspondingly articulated to a lower end of the thrust linking element 33. The armrest support cross brace 31 is arranged between the thrust linking element 33 and the first linking element 141, to allow the rotation linking element 13 to drive the second linking element 142 to move, so that the rotation rod 2 drives the side reinforcement drive assembly and the telescopic support 1 to move.

A first connecting frame 21 and a second connecting frame 22 are arranged in the middle portion of the rotating rod 2. A front end of the first electric push rod 24 is correspondingly hinged to the first connecting frame 21, and a tail end of the first electric push rod 24 is correspondingly hinged to the hinged support 54 in the rear inclined support reinforcement 52, so that the first electric push rod is arranged obliquely between the rotating rod and the inclined support. A stand-assist stop block 83 is arranged on an inner side of the stand-assist vertical brace 82, a stand-assist support 23 fitting the stand-assist stop block 83 is arranged on a lower side of an end portion of the rotation rod 2, a rotation rod limit block 81 is further arranged on a tail portion of the stand-assist linking element 8, and the rotation rod is limited by the stand-assist stop block 83 and the rotation rod limit block 81.

The telescopic backrest assembly includes a first backrest linkage 121, a second backrest linkage 122, and a third backrest linkage 123. A lower end of the first backrest linkage 121 is fixedly connected to a tail end of the side brace 11. An upper end of the first backrest linkage 121 is correspondingly hinged to a front end of the second backrest linkage 122, and a rear end of the second backrest linkage 122 is correspondingly hinged to an upper end of the third backrest linkage 123. A backrest cross brace 124 is fixedly arranged between two third backrest linkages 123, and a backrest connecting bracket 125 is arranged in a mid-portion of the backrest cross brace 124. A front end of the second electric push rod 25 is correspondingly hinged to the second connecting frame 22, and a tail end of the second electric push rod 25 It is articulated correspondingly to the backrest connection support 125 in the middle portion of the backrest cross brace 124, so that the second electric push rod extends or retracts to actuate the telescopic backrest assembly to extend or retract.

During assembly, the first electric push rod 24 is in an initial state, the telescopic footrest assembly is retracted, and the inclined support 5 and base frame 6 are horizontally positioned. When the first electric push rod 24 retracts, the rotation rod 2 moves toward the rotation rod limit block 81, and the rotation rod 2 actuates the telescopic footrest assembly to extend into a flat, recumbent position. When the rotation rod 2 moves to touch the rotation rod limit block 81, the telescopic footrest assembly stops extending. If the first electric push rod 24 continues to retract, it pulls the tail end of the inclined support 5 upward, so that the front end of the inclined support 5 forms a support, and the front end of the base frame 6 rises to form a raised, recumbent position. When the first electric push rod 24 extends, the inclined support 5 and telescopic footrest assembly reset, the first electric push rod 24 continues to extend upwards obliquely to allow the stand-assist support 23 to touch the stand-assist support stop block 83, and the stand-assist support 23 drives the upper frame assembly to rotate around a tail end of the stand-assist support to form a stand-assist position.

Implementation 2

A method of operation for the above iron frame for a standing-assist reclining chair includes the following steps:

A. an upright sitting position: the first electric push rod 24 is in an initial state, the inclined support 5 and the base frame 6 are in a horizontal state, and the telescopic footrest assembly is in a retracted state, so that the upright seat is implemented, as shown in Figure 2;

B. a flat lying position: the first electric push rod 24 is initiated to allow the first electric push rod 24 to retract, the first electric push rod 24 retracts to actuate the rotation rod 2 to move towards the rotation rod limit block 81, the rotation rod 2 actuates the rotation linkage element 13 to rotate, the rotation linkage element 13 actuates the telescopic footrest assembly to unfold and form a flat lying state, and when the rotation rod 2 moves to touch the rotation rod limit block 81, the telescopic footrest assembly no longer extends;

C. a raised prone position: the first electric push rod 24 continues to retract, the rotation rod limit block 81 prevents the rotation rod 2 from moving, and the first electric push rod 24 pulls the tail end of the inclined support 5 upward, so that the front end of the inclined support 5 forms a support, and the front end of the base frame 6 rises to form a raised prone position; and

D. a stand-assist position: when the first electric push rod 24 extends, the inclined support 5 and the telescoping footrest assembly reset, the first electric push rod 24 continues to extend obliquely upwards to allow the stand-assist support 23 to touch the stand-assist stop block 83 on the stand-assist vertical brace 82, the stand-assist support 23 drives the inclined linkage 7 on the upper frame assembly and the H-shaped support 4 to rotate upwards around the bottom of the base frame vertical brace 64, and the rotation linkage 13 pulls the first linkage 141 and the second linkage 142 to move, to drive the armrest support 3, the side brace 11, and the stand-assist linkage 8 to move, so that the end of The tail of the armrest support 3 rises, the side brace 11 rotates around the support linking element 16, the backrest assembly rises, and the stand-assist linking element 8 rises to form a stand-assist position.

Obviously, the foregoing embodiments are merely examples to clearly describe the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art may also make various other changes or variations based on the foregoing description.

Claims (7)

An iron frame for a standing-assistance reclining chair, comprising an inclined support (5), a base frame (6), a telescopic support (1), a rotating rod (2), an upper frame assembly, and a first electric push rod (24), in which telescopic means are capable of extending and retracting, wherein two sides of a middle portion of the inclined support (5) are correspondingly hinged to the base frame (6), such that a tail end of the inclined support (5) rests on a tail end of the base frame (6), and a front end of the base frame (6) rests on a front end of the inclined support (5); and a tail end of the upper frame assembly is correspondingly hinged to the tail end of the base frame (6), the rotation rod (2) is disposed above a front portion of the upper frame assembly, two ends of the rotation rod (2) are in transmission fit with the telescopic support (1), a stand-assist stop block (83) is disposed at a front end of the upper frame assembly, a stand-assist support (23) fitting the stand-assist stop block (83) is disposed on a lower side of an end portion of the rotation rod (2), a rotation rod limit block (81) is further disposed on a tail portion of the upper frame assembly, a front end of the first electric push rod (24) is correspondingly hinged to a middle portion of the rotation rod, and a tail end of the first electric push rod (24) is correspondingly hinged to the tail end of the inclined support (5), so that the first The electric push rod (24) is positioned obliquely between the rotating rod and the inclined support (5), wherein the upper frame assembly comprises an H-shaped support (4), an inclined linking element (7), and a standing-assist linking element (8), the base frame vertical braces (64) are fixedly arranged on two sides of the tail end of the base frame (6), the H-shaped support (4) comprises a cross H-shaped support brace (41) and a side H-shaped support brace (42) fixedly arranged at two ends of the cross H-shaped support brace (41), and a tail end of the side H-shaped support brace (42) is correspondingly hinged to the bottom of the base frame vertical brace (64), a standing-assist vertical brace (82) is fixedly arranged at a tail end of each standing-assist linking element (8), a front end of the side H-shaped support brace (42) is correspondingly hinged to the bottom of the standing-assist vertical brace (82), a tail end of each angled linking element (7) is correspondingly hinged to an upper end of the corresponding base frame vertical reinforcement (64), and a front end of the angled linking element (7) is correspondingly hinged to a middle portion of the standing-assist vertical reinforcement (82), wherein the telescopic support (1) comprises two symmetrically arranged side reinforcements (11), a telescopic footrest assembly is arranged at a front end of each side reinforcement (11), a telescopic backrest assembly is arranged at a rear end of each side reinforcement (11), a side reinforcement drive assembly is arranged in a middle portion of each side reinforcement (11), a support linking element (16) is further arranged at the front end of each side reinforcement (11), an upper end of the support linking element (16) is correspondingly articulated to the side reinforcement (11), and a lower end of the support linking element (16) is correspondingly articulated to the vertical standing-assist reinforcement (82); and the rotating linkage elements (7) are fixedly arranged at the two ends of the rotating rod (2) respectively, a fixed linkage element (15) is fixedly arranged on an inner side of each lateral reinforcement (11), the rotating linkage element (7) comprises a front connecting end (132), a rear connecting end (133), and a rotating connecting end (131) arranged in a triangular shape, the rotating connecting end (131) being articulated correspondingly to the lower part of the fixed linkage element (15), and the front connecting end (132) is in transmission adjustment with a telescopic footrest assembly, such that the front connecting end (132) is able to actuate the telescopic footrest assembly to extend or retract during rotation of the rotating rod (2), and wherein the telescopic footrest assembly comprises a first footrest connecting element (181) and a second footrest connecting element (182) arranged in parallel, a third footrest connecting element (183) and a fourth footrest connecting element (184) arranged in parallel, a front footrest reinforcement (185) and a footrest drive bar (187), the tail ends of the first footrest connecting element (181) and the second footrest connecting element (182) being correspondingly articulated to a front end of the side reinforcement (11), a tail end of the third footrest connecting element (183) being correspondingly articulated to a front end of the first footrest connecting element (181), a tail end of the fourth footrest connecting element (184) being correspondingly articulated to a front end of the second footrest connecting element (185) and a footrest drive bar (187), the tail ends of the first footrest connecting element (181) and the second footrest connecting element (182) being correspondingly articulated to a front end of the second footrest connecting element (183) and the fourth footrest connecting element (184) being correspondingly articulated to a front end of the second footrest connecting element (185) and the second footrest connecting element (187). footrest (182), the front ends of the third footrest linking element (183) and the fourth footrest linking element (184) are correspondingly articulated to the front footrest reinforcement (185), a footrest rotation pin (186) is arranged in the middle portion of the first footrest linking element (181), a middle portion of the fourth footrest linking element (184) is correspondingly articulated to the footrest rotation pin (186), a tail end of the footrest transmission linking element (187) is correspondingly articulated to the front connecting end of the rotation linking element (7), and a front end of the footrest transmission linking element (187) is correspondingly articulated to a middle portion of the second footrest linking element (182), so that the rotation linking element (7) is able to drive the transmission linking element of the footrest (187) and the footrest rotation pin (186) so that they move. 2. The iron frame for a standing-assist reclining chair according to claim 1, further comprising an armrest support (3), wherein the armrest support (3) comprises a transverse armrest support brace (31) and a lateral armrest support brace (32) fixedly arranged at two ends of the transverse armrest support brace (31), an armrest connecting element (33) is arranged on an inner side of a front portion of the lateral armrest support brace (32), one end of the armrest connecting element (33) is articulated correspondingly to the lateral armrest support brace (32), the other end is articulated correspondingly to an outer side of the lateral brace (11), the two ends of the transverse armrest support brace (31) are arranged below the middle portion of the lateral brace (11), the two ends of the transverse armrest support brace (31) are connected fixed manner to the stand-assist linkage element (8), the armrest support cross brace (31) is in transmission adjustment with the side brace drive assembly, and the side brace drive assembly is in transmission adjustment with the rear connecting end (133) of the rotation linkage element (7), so that the rear connecting end (133) is able to drive the side brace drive assembly to move during rotation of the rotation rod (2). 3. The iron frame for a standing-assist reclining chair according to claim 2, wherein the side-brace drive assembly comprises a first linking element (141) and a second linking element (142) arranged in an inverted A-shape, the push linking elements (33) being fixed at the two ends of the armrest support cross brace (31), an upper end of the first linking element (141) being articulated to the side brace (11), a tail end of the first linking element (141) being articulated to a lower end of the second linking element (142), an upper end of the second linking element (142) being articulated to the rear connecting end (133), and a middle portion of the first linking element (141) being articulated to a tail end of the push linking element (33), such that the rotating rod (2) is capable of actuating the drive assembly. Lateral reinforcement and telescopic support (1) to allow them to move. 4. The iron frame for a standing-assist reclining chair according to claim 1, wherein the telescopic backrest assembly comprises a first backrest linking element (121), a second backrest linking element (122), and a third backrest linking element (123), a lower end of the first backrest linking element (121) being fixedly connected to a tail end of the side reinforcement (11), an upper end of the first backrest linking element (121) being fixedly hinged to a front end of the second backrest linking element (122), a rear end of the second backrest linking element (122) being correspondingly hinged to an upper end of the third backrest linking element (123), and a transverse backrest reinforcement (124) being fixedly arranged between two third backrest linking elements (123). 5. The iron frame for a standing-assist reclining chair according to claim 4, further comprising a second electric push rod (25), wherein a front end of the second electric push rod (25) is articulated correspondingly to the middle portion of the rotation rod (2), and a tail end of the second electric push rod (25) is articulated correspondingly to a middle portion of the backrest cross brace (124). 6. The iron frame for a standing-assist reclining chair according to claim 1, wherein the damping blocks (65) are arranged on two sides of the tail end of the base frame (6) and two sides of the front end of the base frame (6), and the swivel casters (55) are arranged on two sides of the front end of the inclined support (5). 7. A method of operation for the iron frame for a standing-assistance reclining chair according to claim 1, comprising the following steps: A. move to an upright seated position: put the first electric push rod (24) in an initial state, the inclined support (5) and the base frame (6) in a horizontal state, and the telescopic footrest assembly in a retracted state, so that the upright seat is implemented; B. move to a flat lying position: initiate the first electric push rod (24) to allow the first electric push rod (24) to retract, retract the first electric push rod (24) to actuate the rotation rod (2) to move towards the limit block (81) of the rotation rod (2), the rotation rod (2) actuates the rotation linkage (7) to rotate, and the rotation linkage (7) actuates the telescopic footrest assembly to unfold to form a flat lying state, and when the rotation rod (2) moves to touch the limit block (81) of the rotation rod (2), the telescopic footrest assembly no longer extends; C. moving to a raised recumbent position: the first electric push rod (24) continues to retract, the limit block (81) of the rotation rod (2) allows the rotation rod (2) to be prevented from moving, and the first electric push rod (24) pulls the tail end of the inclined support (5) upward, so that the front end of the inclined support (5) forms a support, and the front end of the base frame (6) rises to form a raised recumbent position state so that the footrest assembly is in a higher position than the backrest assembly; and D. move to a stand-assist position: When the first electric push rod (24) is extended, the inclined support (5) and telescopic footrest assembly are reset, the first electric push rod (24) continues to extend upwards obliquely to allow the stand-assist support (23) to touch the stand-assist stop block (83), and the stand-assist support (23) drives the upper frame assembly to rotate around a tail end of the stand-assist support (23) to form a stand-assist position.