CN212489175U

CN212489175U - Adjustable deck chair

Info

Publication number: CN212489175U
Application number: CN202020514107.9U
Authority: CN
Inventors: 克劳斯·柏林霍特
Original assignee: Jiaxing Sainuo Machinery Co ltd
Current assignee: Tiankang Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-02-09
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses an adjustable deck chair, including base frame, crane, foot's support frame, shank support frame, seat frame, back frame, link gear, power, install first electric putter in the crane, first electric putter drive crane realizes going up and down, installs second electric putter in the link gear, and second electric putter drive link gear drives foot's support frame, shank support frame, seat frame, back frame coordinated motion, forms the regulation of different gestures such as position of sitting, the appearance of lying. The utility model discloses an adjustable deck chair need not to shift the user, and what can relax switches wantonly between position of sitting and the appearance of lying, has reduced nursing staff's intensity of labour, reduces the risk of shifting the in-process. Meanwhile, the lifting of the integral use position can be realized in sitting posture and lying posture, so that the old or a carer can conveniently sit and lie, and the old or the carer can conveniently transfer to other equipment, and the multifunctional chair is suitable for being used in a nursing home, a hospital or a family.

Description

Adjustable deck chair

Technical Field

The utility model belongs to the technical field of the nursing instrument, concretely relates to adjustable deck chair.

Background

The old or the paralyzed patient has inconvenient movement and can only lie on the bed. However, lying in bed for a long time can cause fatigue, even cause the function of other healthy parts of the body to be degraded, and also limit the range of motion of the patient. The wheelchair can be changed into a sitting posture, and the switching between the lying posture and the sitting posture can relieve the fatigue of the body of the patient and expand the range of motion of the patient, so that the patient can keep a good mental state. However, it is inconvenient to transfer the elderly or paralyzed patient back and forth between the bed and the wheelchair, and multiple nursing staff are required to cooperate at the same time to complete the process. The transfer process is not only time-consuming and labor-consuming, but also has potential safety hazards.

Disclosure of Invention

In order to solve the technical problem, the utility model discloses a technical scheme is: an adjustable reclining chair comprises a base frame, a lifting frame, a foot support frame, a leg support frame, a seat frame, a backrest frame, a linkage mechanism and a power supply,

the backrest frame comprises a left back supporting beam and a right back supporting beam, and the left back supporting beam and the right back supporting beam are fixedly connected through a plurality of back cross beams;

the seat frame comprises a left seat supporting beam and a right seat supporting beam, and the left seat supporting beam and the right seat supporting beam are fixedly connected through a plurality of seat cross beams;

the leg support frame comprises a left leg support beam and a right leg support beam, the middle part of the left leg support beam and the middle part of the right leg support beam are fixedly connected through a leg support cross beam, the rear end of the left leg support beam is hinged with the front end of the left seat support beam, and the rear end of the right leg support beam is hinged with the front end of the right seat support beam;

the two sides of the foot supporting frame are respectively hinged to the front end of the left leg supporting beam and the front end of the right leg supporting beam, and the lower end of the foot supporting frame is provided with a front supporting pulley;

the base frame comprises a left base supporting beam and a right base supporting beam, the left base supporting beam and the right base supporting beam are fixedly connected through a plurality of bottom cross beams, and supporting wheels are respectively arranged at two ends of the left base supporting beam and two ends of the right base supporting beam;

the crane is including left lifting beam and right lifting beam, through a plurality of lifting beam fixed connection between left lifting beam and the right lifting beam, is equipped with left cross structure between left lifting beam and the left base supporting beam, is equipped with right cross structure between right lifting beam and the right base supporting beam, and left cross structure is the same with right cross structure and the symmetry sets up, and wherein left cross structure is including: the upper end of the first supporting rod is hinged at the rear end of the left lifting beam, the lower end of the first supporting rod is provided with a lower pulley, the front end of the left base supporting beam is provided with a lower limiting slide rail, the length direction of the lower limiting slide rail is the same as that of the left base supporting beam, the lower pulley is slidably arranged in the lower limiting slide rail, the lower end of the second supporting rod is hinged at the rear end of the left base supporting beam, the upper end of the second supporting rod is provided with an upper pulley, the front end of the left lifting beam is provided with an upper limiting slide rail, the length direction of the upper limiting slide rail is the same as that of the left lifting beam, the upper pulley is slidably arranged in the upper limiting slide rail, the middle part of the first supporting rod and the middle part of the second supporting rod are respectively provided with a jack, an installation shaft is arranged between the left cross structure and the right cross structure, one end of the installation shaft sequentially and rotatably penetrates through the middle part of, the other end of the foot supporting frame sequentially and rotatably penetrates through the middle part of a second supporting rod and the middle part of a first supporting rod in a right cross structure, the middle part of the foot supporting frame is fixedly connected with a fixed plate, an eighth linkage rod is connected between the fixed plate and a seat part cross beam close to the front end of the seat part frame in the seat part frame, one end of the eighth linkage rod is hinged to the middle part of the seat part cross beam close to the front end of the seat part frame in the seat part frame, and the other end of the eighth linkage rod is hinged to the fixed plate;

a first electric push rod mounting plate is fixedly connected to the mounting shaft, a first electric push rod is hinged to the middle of a bottom cross beam, close to the front end of the base frame, a telescopic rod of the first electric push rod is hinged to the upper end of the electric push rod mounting plate, a rear connecting shaft is arranged between the left cross structure and the right cross structure, one end of the rear connecting shaft is rotatably connected with the lower end of a second supporting rod in the left cross structure, the other end of the rear connecting shaft is rotatably connected with the lower end of the second supporting rod in the right cross structure, a rear supporting rod is fixed to the middle of the rear connecting shaft, and the upper end of the;

the linkage mechanism comprises a second electric push rod, a left linkage structure and a right linkage mechanism, the second electric push rod is arranged on the lifting frame through a second electric push rod mounting plate and close to the middle part of the lifting cross beam at the rear end of the lifting frame, the lifting and contracting rod of the second electric push rod is hinged to the middle part of a back cross beam on the backrest frame,

the left linkage structure and the right linkage structure are the same and symmetrically arranged, wherein the left linkage structure comprises: the triangular linkage plate comprises a first connecting angle, a second connecting angle and a third connecting angle, the first connecting angle is connected with the left back supporting beam through the first linkage plate, two ends of the first linkage plate are respectively hinged with the first connecting angle and the left back supporting beam, the second connecting angle is hinged with the left seat supporting beam, the third connecting angle is connected with a third linkage plate, one end of the third linkage plate is hinged with the third connecting angle, the other end of the third linkage plate is hinged with an auxiliary triangular linkage plate, the auxiliary triangular linkage plate comprises a fourth connecting angle, a fifth connecting angle and a sixth connecting angle, the fourth connecting angle is hinged with the third linkage plate, the fifth connecting angle is hinged on the left lifting beam, the sixth connecting angle is connected with a fourth linkage plate and a fifth linkage plate, one end of the fourth linkage plate is hinged with the sixth connecting angle, the other end of the fourth linkage plate is hinged on the left leg supporting beam, one end of the fifth linkage plate is hinged with the sixth connecting angle, the other end is hinged on the left seat supporting beam, a bending linkage plate is arranged on the triangular linkage plate, a first hinge point, a second hinge point and a third hinge point are arranged on the bending linkage plate, the first hinge point is hinged at the front end of the left back supporting beam, the second hinge point is hinged with the triangular linkage plate, the third hinge point is hinged with a sixth linkage plate, the sixth linkage plate is hinged on the left lifting beam,

the power supply is a storage battery which is fixedly arranged on the lifting beam and supplies power to the first electric push rod and the second electric push rod through the controller;

the foot support frame, the leg support frame, the seat frame and the backrest frame are respectively provided with a cover plate, the cover plate is provided with a sponge cushion, and the sponge cushion is covered with a fabric cover.

Preferably as above-mentioned technical scheme, left handrail case and right left handrail case are installed respectively to the both sides of adjustable deck chair, and left handrail case and right left handrail case structure are the same and the symmetry sets up, and wherein left handrail case is fixed with the installation long plate including framework and apron in the framework, and the upper end of installation long plate articulates on a left back supporting beam, and the lower extreme of installation long plate is equipped with the jack, and rotatable the inserting shaft of inserting has been inserted in the jack, and the tip fixedly connected with seventh gangboard of inserting the shaft, seventh gangboard pass through the rotatable installation of fixed axle on left lifting beam.

As above-mentioned technical scheme's preferred, respectively detachable installs the railing on the left handrail case and the right handrail case, is equipped with the socket that supplies the railing to pack into on the left handrail case and the right handrail case respectively.

Preferably, the lower end of the handrail is provided with two plug-in pins, and the left handrail box and the right handrail box are respectively provided with a handrail mounting hole for the plug-in pins to be inserted.

Preferably, the triangular linkage plate in the left linkage structure is fixedly connected with the triangular linkage plate of the right linkage mechanism through a first fixing rod, and the bending linkage plate in the left linkage structure is fixedly connected with the bending linkage plate of the right linkage mechanism through a second fixing rod.

Preferably, a front guard plate, a left guard plate, a rear guard plate and a right guard plate are fixed around the lifting frame respectively, the front guard plate is fixed on a lifting cross beam close to the front end of the adjustable reclining chair in the lifting frame, the left guard plate is fixed on the left lifting beam, the left guard plate is fixed on the right lifting beam, and the rear guard plate is fixed on the lifting cross beam close to the rear end of the adjustable reclining chair in the lifting frame.

Preferably, the rear guard plate is provided with a power cord jack, and the power cord jack is connected with a storage battery.

Preferably, the rear guard plate is provided with a hook.

Preferably, the back side of the back rest frame is provided with a back rest frame protection plate, the back rest frame protection plate is provided with a handle and a handle, and the back rest frame protection plate is covered with a fabric cover.

Preferably, the fabric cover of the backrest frame is provided with a headrest through magic glue.

The utility model has the advantages that: the utility model discloses an adjustable deck chair need not to shift the user, and what can relax switches wantonly between position of sitting and the appearance of lying, has reduced nursing staff's intensity of labour, reduces the risk of shifting the in-process. Meanwhile, the lifting of the integral use position can be realized in sitting posture and lying posture, so that the old or a carer can conveniently sit and lie, and the old or the carer can conveniently transfer to other equipment, and the multifunctional chair is suitable for being used in a nursing home, a hospital or a family.

Drawings

FIG. 1 is a schematic view of the internal structure of the adjusting process of the present invention;

FIG. 2 is a left side view of the internal structure of the adjusting process of the present invention;

FIG. 3 is a left side view of the internal structure of the utility model in a lying position;

FIG. 4 is a left side view of the internal structure of the utility model when the bed is lifted;

fig. 5 is a cross-sectional view of the present invention during adjustment;

FIG. 6 is a schematic structural diagram of the adjusting process of the present invention;

fig. 7 is another angle structure diagram in the adjusting process of the present invention;

fig. 8 is a schematic structural view of the present invention in a sitting posture state;

fig. 9 is a schematic structural view of the utility model in a lying posture;

fig. 10 is a schematic structural view of the present invention when the bed is lifted.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-10, an adjustable reclining chair comprises a base frame, a lifting frame, a foot support 400, a leg support, a seat frame, a backrest frame, a linkage mechanism and a power supply.

The backrest frame comprises a left back support beam 101 and a right back support beam 102, and the left back support beam 101 and the right back support beam 102 are fixedly connected through a plurality of back cross beams 103.

The seat frame comprises a left seat support beam 201 and a right seat support beam 202, and the left seat support beam 201 and the right seat support beam 202 are fixedly connected through a plurality of seat cross beams 203.

The leg support frame comprises a left leg support beam 301 and a right leg support beam 302, the middle of the left leg support beam 301 and the middle of the right leg support beam 302 are fixedly connected through a leg support cross beam 303, the rear end of the left leg support beam 301 is hinged to the front end of the left seat support beam 201, and the rear end of the right leg support beam 302 is hinged to the front end of the right seat support beam 202. In order to improve the adjustment effect of the reclining chair, the rear end of the left leg support beam 301 is fixedly connected with a bending connecting sheet 304, the front end of the left seat support beam 201 is fixedly connected with a right-angle connecting sheet 204, and the right-angle connecting sheet 204 is hinged with the bending connecting sheet 304. The rear end of the right leg support beam 302 is hinged in the same manner as the front end of the right seat support beam 202.

The two sides of the foot support frame 400 are respectively hinged to the front end of the left leg support beam 301 and the front end of the right leg support beam 302, and the lower end of the foot support frame 400 is provided with a front support pulley 401.

The base frame comprises a left base support beam 501 and a right base support beam 502, the left base support beam 501 and the right base support beam 502 are fixedly connected through a plurality of bottom cross beams 503, and support wheels 504 are respectively installed at two ends of the left base support beam 501 and two ends of the right base support beam 502. The support wheels 504 are universal wheels with a braking function.

The crane is including left lifing beam 601 and right lifing beam 602, through a plurality of lifting beam 603 fixed connection between left lifing beam 601 and the right lifing beam 602, is equipped with left cross structure between left lifing beam 601 and the left base supporting beam 501, is equipped with right cross structure between right lifing beam 602 and the right base supporting beam 502, and left cross structure is the same with right cross structure and symmetry setting, and wherein left cross structure is including: a first support rod 604 and a second support rod 605, wherein the upper end of the first support rod 604 is hinged at the rear end of the left lifting beam 601, the lower end of the first support rod 604 is provided with a lower pulley 606, the front end of the left base support beam 501 is provided with a lower limit slide rail 607, the length direction of the lower limit slide rail 607 is the same as that of the left base support beam 501, the lower pulley 606 is slidably arranged in the lower limit slide rail 607, the lower end of the second support rod 605 is hinged at the rear end of the left base support beam 501, the upper end of the second support rod 605 is provided with an upper pulley 608, the front end of the left lifting beam 601 is provided with an upper limit slide rail 609, the length direction of the upper limit slide rail 609 is the same as that of the left lifting beam 601, the upper pulley 608 is slidably arranged in the upper limit slide rail 609, the middle part of the first support rod 604 and the middle part of the second support rod 605 are respectively provided with, one end of the mounting shaft 610 is sequentially rotatably inserted through the middle portions of the second support bar 605 and the first support bar 604 in the left cross structure, and the other end is sequentially rotatably inserted through the middle portions of the second support bar 605 and the first support bar 604 in the right cross structure.

The installation epaxial fixedly connected with first electric putter mounting panel 611 on 610, the middle part of the bottom crossbeam 503 that is close to the base frame front end on the base frame articulates there is first electric putter 612, the telescopic link of first electric putter 612 articulates the upper end at electric putter mounting panel 611, be equipped with back connecting axle 613 between left cross structure and the right cross structure, the one end of back connecting axle 613 rotates with the lower extreme of second bracing piece 605 in the left cross structure to be connected, the other end rotates with the lower extreme of second bracing piece 605 in the right cross structure to be connected, the middle part of back connecting axle 613 is fixed with back bracing piece 614, the upper end fixed connection electric putter mounting panel 611's of the upper end of back bracing piece 614 upper end. The lifting frame is driven to lift by utilizing the telescopic action of the telescopic rod of the first electric push rod 612, fig. 5 shows a lifting state in a lying posture state, and fig. 4 shows a descending state in the lying posture state.

The linkage mechanism comprises a second electric push rod 701, a left linkage structure and a right linkage mechanism, the second electric push rod 701 is arranged at the middle part of a lifting cross beam 603 close to the rear end of the lifting frame on the lifting frame through a second electric push rod mounting plate 702, a lifting and contracting rod of the second electric push rod 701 is hinged at the middle part of a back cross beam 103 on the backrest frame, the middle part of the foot support frame is fixedly connected with a fixed plate 703, an eighth linkage rod 704 is connected between the fixed plate 703 and a seat cross beam 203 close to the front end of the seat frame in the seat frame, one end of the eighth linkage rod 704 is hinged at the middle part of the seat cross beam 203 close to the front end of the seat frame in the seat frame, and the other end of the eighth linkage rod 704 is,

the left linkage structure and the right linkage structure are the same and symmetrically arranged, wherein the left linkage structure comprises: the triangular linkage plate 705 comprises a first connecting angle 706, a second connecting angle 707 and a third connecting angle 708, the first connecting angle 706 is connected with the left back supporting beam 101 through a first linkage plate 709, two ends of the first linkage plate 709 are respectively hinged with the first connecting angle 706 and the left back supporting beam 101, the second connecting angle 707 is hinged with the left seat supporting beam 201, the third connecting angle 708 is connected with a third linkage plate 710, one end of the third linkage plate 710 is hinged with the third connecting angle 708, the other end of the third linkage plate is hinged with a secondary triangular linkage plate 711, the secondary triangular linkage plate 711 comprises a fourth connecting angle 712, a fifth connecting angle 713 and a sixth connecting angle 714, wherein the fourth connecting angle 712 is hinged with the third linkage plate 710, the fifth connecting angle 713 is hinged on the left lifting beam 601, the sixth connecting angle 714 is connected with a fourth linkage plate 715 and a fifth linkage plate 716, one end of the fourth linkage plate 715 is hinged with the sixth connecting angle 714, the other end is hinged on the left leg support beam 301, one end of the fifth linkage plate 716 is hinged with the sixth connecting angle 714, the other end is hinged on the left seat support beam 201, the triangular linkage plate 705 is provided with a bending linkage plate 717, the bending linkage plate 717 is provided with a first hinge point 718, a second hinge point 719 and a third hinge point 720, the first hinge point 718 is hinged at the front end of the left back supporting beam 101, the second hinge point 719 is hinged with the triangular linkage plate 705, the third hinge point 720 is hinged with a sixth linkage plate 721, the sixth linkage plate 721 is hinged on the left lifting beam 601, through the linkage action of the linkage mechanism, when the telescopic rod of the second electric push rod 701 is stretched and contracted to drive the backrest frame to move, the foot support, the leg support and the seat frame move simultaneously under the driving action of the linkage mechanism to form a sitting posture state (as shown in figure 2) or a lying posture state (as shown in figure 3).

The power supply is a storage battery 800, the storage battery 800 is fixedly arranged on the lifting cross beam 603, and the storage battery 800 supplies power to the first electric push rod 612 and the second electric push rod 701 through the controller; the controller adopts the existing PLC programmable controller, and realizes the adjustment of different postures by controlling the stroke formation of the first electric push rod 612 and the second electric push rod 701 and combining the linkage action of the linkage mechanism. The controller can be used independently through wire connection, and can also be fixedly arranged at a proper position on the reclining chair.

The foot support frame, the leg support frame, the seat frame and the backrest frame are respectively provided with a cover plate 801, the cover plate 801 is provided with a sponge cushion 802, and the sponge cushion 802 is covered with a fabric cover 803.

Further, a left armrest box 804 and a right armrest box 805 are respectively installed on two sides of the adjustable deck chair, the left armrest box 804 and the right armrest box 805 are identical in structure and symmetrically arranged, the left armrest box 804 comprises a frame body 806 and a cover plate 807, an installation long plate 808 is fixed on the frame body 806, the upper end of the installation long plate 808 is hinged to the left back supporting beam 101, a jack is arranged at the lower end of the installation long plate 808, an inserting shaft 809 is rotatably inserted in the jack, a seventh linkage plate 810 is fixedly connected to the end of the inserting shaft 809, and the seventh linkage plate 810 is rotatably installed on the left lifting beam 601 through a fixed shaft 811. The left armrest box 804 and the right armrest box 805 can adjust their states as the attitude changes.

Furthermore, the left armrest box 804 and the right armrest box 805 are respectively provided with a handrail 812 in a detachable manner, and the left armrest box 804 and the right armrest box 805 are respectively provided with a socket 813 for the handrail to be installed. The balustrade 812 is removed and the balustrade 812 is stored in the receptacle 813 on the left armrest box 804 or in the right armrest box 805.

Further, two plug pins 814 are disposed at the lower end of the handrail 812, and a handrail mounting hole 815 for inserting the plug pins 814 is disposed on the left armrest box 804 and the right armrest box 805 respectively. A railing panel 816 can be fixed on the railing 812, so that the protection effect is further improved.

Further, the triangular linkage plate 705 in the left linkage structure is fixedly connected with the triangular linkage plate 705 in the right linkage structure through a first fixing rod 722, and the bending linkage plate 717 in the left linkage structure is fixedly connected with the bending linkage plate 717 in the right linkage structure through a second fixing rod 723. The first and second fixing

rods

722 and 723 cause the left and right linkages to act in synchronization.

Furthermore, a front guard plate 817, a left guard plate 818, a rear guard plate 819 and a right guard plate 820 are respectively fixed on the periphery of the lifting frame, the front guard plate 817 is fixed on a lifting cross beam 603 close to the front end of the adjustable reclining chair in the lifting frame, the left guard plate 818 is fixed on the left lifting beam 601, the left guard plate 819 is fixed on the right lifting beam 602, and the rear guard plate 820 is fixed on the lifting cross beam 603 close to the rear end of the adjustable reclining chair in the lifting frame.

Further, a power line jack 821 is installed on the rear protection plate 819, and the power line jack 821 is connected to the storage battery 800.

Further, a hook 822 is installed on the rear guard plate 821.

Furthermore, a backrest frame protection plate 104 is installed on the back surface of the backrest frame, a handle 105 and a handle 106 are installed on the backrest frame protection plate 104, and a fabric cover 803 covers the backrest frame protection plate 104.

Further, a headrest 107 is mounted on the fabric cover 803 of the backrest frame through a hook and loop fastener.

It should be mentioned that the utility model discloses a technical characteristics such as first electric putter 612, second electric putter 701, controller that the patent application relates to should be regarded as prior art, and the telescopic link of first electric putter 612 and second electric putter 701 realizes extending or shortening under the control of controller, and the concrete structure of controller, the concrete structure of these technical characteristics, theory of operation and the control mode that may involve, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model discloses a place, the utility model discloses a do not do further specifically expand the detailing.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.

Claims

1. An adjustable deck chair is characterized by comprising a base frame, a lifting frame, a foot supporting frame, a leg supporting frame, a seat frame, a backrest frame, a linkage mechanism and a power supply,

the crane is including left lifting beam and right lifting beam, through a plurality of lifting beam fixed connection between left lifting beam and the right lifting beam, is equipped with left cross structure between left lifting beam and the left base supporting beam, is equipped with right cross structure between right lifting beam and the right base supporting beam, and left cross structure is the same with right cross structure and the symmetry sets up, and wherein left cross structure is including: the upper end of the first supporting rod is hinged at the rear end of the left lifting beam, the lower end of the first supporting rod is provided with a lower pulley, the front end of the left base supporting beam is provided with a lower limiting slide rail, the length direction of the lower limiting slide rail is the same as that of the left base supporting beam, the lower pulley is slidably arranged in the lower limiting slide rail, the lower end of the second supporting rod is hinged at the rear end of the left base supporting beam, the upper end of the second supporting rod is provided with an upper pulley, the front end of the left lifting beam is provided with an upper limiting slide rail, the length direction of the upper limiting slide rail is the same as that of the left lifting beam, the upper pulley is slidably arranged in the upper limiting slide rail, the middle part of the first supporting rod and the middle part of the second supporting rod are respectively provided with a jack, an installation shaft is arranged between the left cross structure and the right cross structure, one end of the installation shaft sequentially and rotatably penetrates through the middle part of, the other end of the right cross structure can sequentially and rotatably penetrate through the middle part of the second supporting rod and the middle part of the first supporting rod,

the middle part of the foot supporting frame is fixedly connected with a fixed plate, an eighth linkage rod is connected between the fixed plate and a seat cross beam close to the front end of the seat frame in the seat frame, one end of the eighth linkage rod is hinged to the middle part of the seat cross beam close to the front end of the seat frame in the seat frame, and the other end of the eighth linkage rod is hinged to the fixed plate;

2. The adjustable reclining chair according to claim 1, wherein a left armrest box and a right armrest box are respectively installed on two sides of the adjustable reclining chair, the left armrest box and the right armrest box are identical in structure and are symmetrically arranged, the left armrest box comprises a frame body and a cover plate, a long installation plate is fixed on the frame body, the upper end of the long installation plate is hinged to the left back support beam, the lower end of the long installation plate is provided with an insertion hole, an insertion shaft is rotatably inserted into the insertion hole, the end of the insertion shaft is fixedly connected with a seventh linkage plate, and the seventh linkage plate is rotatably installed on the left lifting beam through a fixed shaft.

3. The adjustable reclining chair of claim 2, wherein the left armrest box and the right armrest box are respectively and detachably provided with a handrail, and the left armrest box and the right armrest box are respectively provided with a socket for the handrail to be inserted.

4. The adjustable reclining chair as claimed in claim 3, wherein the rail is provided at a lower end thereof with two pins, and the left and right armrest boxes are respectively provided with rail mounting holes into which the pins are inserted.

5. The adjustable reclining chair according to claim 1, wherein the triangular linkage plate of the left linkage structure is fixedly connected with the triangular linkage plate of the right linkage mechanism through a first fixing rod, and the bending linkage plate of the left linkage structure is fixedly connected with the bending linkage plate of the right linkage mechanism through a second fixing rod.

6. The adjustable reclining chair of claim 1 wherein the lifting frame has a front guard plate, a left guard plate, a rear guard plate and a right guard plate fixed around the lifting frame, the front guard plate being fixed to the lifting beam of the lifting frame near the front end of the adjustable reclining chair, the left guard plate being fixed to the left lifting beam, the left guard plate being fixed to the right lifting beam, and the rear guard plate being fixed to the lifting beam of the lifting frame near the rear end of the adjustable reclining chair.

7. The adjustable lounge chair of claim 6 wherein said back guard has a power cord jack mounted thereon, said power cord jack being connected to a battery.

8. The adjustable recliner chair of claim 6 wherein the back guard has a hook mounted thereon.

9. The adjustable reclining chair of claim 1, wherein a back frame guard is mounted to the back of the back frame, the back frame guard having a handle and a handle mounted thereon, and a fabric cover covering the back frame guard.

10. The adjustable reclining chair of claim 1 wherein the fabric cover of said back rest frame has a headrest mounted thereon by velcro.