CN113576191A

CN113576191A - Double-motor separate control type high-bearing zero-gravity iron frame of old people chair

Info

Publication number: CN113576191A
Application number: CN202111086596.8A
Authority: CN
Inventors: 沈郭明; 郭宗峰; 邬加浩; 潘自流; 陈俊; 毛磊; 陈小丽; 王伟; 黄正广
Original assignee: Leggett and Platt Jiaxing Co Ltd
Current assignee: Leggett and Platt Jiaxing Co Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-11-02

Abstract

The invention discloses a double-motor separate control type high-bearing zero-gravity iron frame of an old people chair, which comprises a lifting plate, a seat frame, a leg placing connecting rod group, a seat lifting connecting rod group, a first push rod motor and a second push rod motor, wherein the lifting plate is arranged on the seat frame; the seat frame comprises a seat plate, a leg rest assembly and a backrest assembly; the leg rest connecting rod set comprises a driving plate, a first connecting rod, a second connecting rod and a third connecting rod; the driving plate is pivoted with the lifting plate, the first connecting rod is pivoted with the driving plate, the second connecting rod is pivoted with the first connecting rod, the second connecting rod is pivoted with the leg rest component, and the third connecting rod is pivoted on the second connecting rod and the seat plate; the seat lifting connecting rod group comprises a fourth connecting rod and a fifth connecting rod; the fourth connecting rod is pivoted at the front ends of the driving plate and the fifth connecting rod, the rear end of the fifth connecting rod is pivoted on the seat plate, and a supporting piece for the fifth connecting rod to abut against is arranged on the seat plate; the first push rod motor is connected with the driving plate, and the second push rod motor is connected with the backrest component. The invention can obviously improve the use convenience and comfort of users.

Description

Double-motor separate control type high-bearing zero-gravity iron frame of old people chair

Technical Field

The invention relates to the field of seats, in particular to a double-motor sub-control type high-bearing zero-gravity old people chair iron frame.

Background

The seat is a household tool frequently used by people and can be used for people to have a rest. For the old people who are inconvenient to move and have weak muscles, the old people who are inconvenient to move cannot easily get up by sitting on the seat, so that the old people chair capable of assisting the old people to stand is available on the market.

In the prior art, the old people chair only has the function of assisting the old people to stand and does not have the stretching and contracting function of improving the lying and sitting comfort, so that the experience of a user in lying and sitting is general, and the old people chair in the prior art has an improved space.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the dual-motor separate control type high-bearing zero-gravity old people chair iron frame which can obviously improve the use convenience and comfort of a user.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a two motor branch accuse types height bears zero gravity old man chair iron stand, characterized by: the lifting mechanism comprises a lifting plate, a seat frame, a leg placing connecting rod group, a seat lifting connecting rod group, a first push rod motor and a second push rod motor;

the seat frame comprises a seat plate, a leg rest assembly arranged at the front end of the seat plate and a backrest assembly arranged at the rear end of the seat plate;

the leg rest connecting rod set comprises a driving plate, a first connecting rod, a second connecting rod and a third connecting rod; the middle part of the driving plate is pivoted with the front end part of the lifting plate, the front end of the first connecting rod is pivoted with the lower end of the driving plate, the rear end of the second connecting rod is pivoted with the rear end of the first connecting rod, the front end of the second connecting rod is pivoted on one connecting rod in the leg placing assembly, the lower end of the third connecting rod is pivoted on the second connecting rod, and the upper end of the third connecting rod is pivoted on the seat plate;

the seat lifting connecting rod group comprises a fourth connecting rod and a fifth connecting rod; the lower end of the fourth connecting rod is pivoted on the driving plate, the upper end of the fourth connecting rod is pivoted with the front end of a fifth connecting rod, the rear end of the fifth connecting rod is pivoted on the seat plate, and a supporting piece for the fifth connecting rod with the upward rotating front end to abut against is arranged on the seat plate;

the first push rod motor is connected with the drive plate and drives the lifting plate to lift upwards or drives the drive plate to rotate relative to the lifting plate so as to link the extension of the leg rest assembly and the lifting of the front end of the seat plate;

the second push rod motor is connected with the backrest component to drive the backrest component to swing back and forth.

Preferably, the backrest assembly comprises a backrest plate and a support plate;

the back rest is characterized in that a connecting part extending upwards is arranged at the rear end of the seat plate, and the lower front end of the back rest is pivoted to the upper end of the connecting part;

the supporting plate is fixed at the lower rear end of the backrest plate and is connected with a second push rod motor to drive the backrest plate to rotate relative to the connecting part.

Preferably, the seat lifting linkage further comprises a linkage rod, the front end of the linkage rod is pivoted with the rear end of the fifth connecting rod, and the rear end of the linkage rod is pivoted with the upper front end part of the supporting plate.

Preferably, the lifting device also comprises a chassis, an upper lifting rod and a lower lifting rod;

the bottom frame is provided with a mounting plate in a vertical state, and the mounting plate is provided with a first pivoting position and a second pivoting position which are vertically distributed;

the rear end of the upper lifting rod and the rear end of the lower lifting rod are respectively pivoted on the first pivoting position and the second pivoting position;

the front end of the lifting plate is provided with a connecting support part which is bent downwards and can be supported on the underframe, and the connecting support part is provided with a third pivoting position and a fourth pivoting position which are distributed up and down and used for pivoting the front end of the upper lifting rod and the front end of the lower lifting rod;

the motor end of the first push rod motor is pivoted on the bottom frame, and a first motor pipe is pivoted on the push rod end of the first push rod motor and connected with the driving plate through the first motor pipe.

The invention has the advantages that: the seat frame has a lifting function so as to be convenient for the old to use, and the front end position of the seat plate can be driven to lift and the leg rest component can be driven to unfold through the first push rod motor, so that the leisure sitting posture state is achieved; through second push rod motor, can drive back subassembly and lean on backward and seat board front position further lifting, reach zero gravity state of lying posture.

Drawings

Fig. 1 is a schematic view of an iron stand in a zero-gravity lying posture state according to the present embodiment;

fig. 2 is a partial schematic view of an iron stand according to the present embodiment;

fig. 3 is a partial schematic view of the iron stand provided in this embodiment;

FIG. 4 is a schematic illustration of the present embodiment providing an iron stand with the leg rest assembly fully open;

fig. 5 is a schematic view of the iron frame in a zero-gravity lying posture state according to the present embodiment;

fig. 6 is a schematic view of the iron frame provided in this embodiment in a fully collapsed state;

fig. 7 is a schematic view of the iron stand provided in this embodiment in a lifted state.

Detailed Description

The dual-motor separate-control type high-bearing zero-gravity old people chair iron frame is further described with reference to fig. 1 to 7.

The utility model provides a two motor branch accuse types height bears zero gravity old man chair iron stand, characterized by: comprises an underframe 1, a lifting plate 6, a seat frame 2, a leg rest linkage 5, a seat lifting linkage 3, a first push rod motor 4 and a second push rod motor 8.

As shown in fig. 1,2 and 5, the base frame 1 has two vertical and symmetrical mounting plates 11, and the mounting plates 11 are pivoted with upper lifting rods 13 and lower lifting rods 12 which are distributed up and down. Namely, the mounting plate 11 has a first pivot joint position and a second pivot joint position which are distributed up and down, and the rear end of the upper lifting rod 13 and the rear end of the lower lifting rod 12 are respectively pivoted on the first pivot joint position and the second pivot joint position. The lifting plate 6 has a connecting support 62 bent downward at the front end and capable of being supported on the base frame 1, and the connecting support 62 has a third pivot position and a fourth pivot position distributed upward and downward and pivotally connecting the front end of the upper lifting rod 13 and the front end of the lower lifting rod 12. The first to fourth pivot joint positions are all pivot joint holes.

As shown in fig. 1 and 4, the seat frame 2 includes a seat plate 22, a leg rest assembly 21 provided at a front end of the seat plate 22, and a backrest assembly 23 provided at a rear end of the seat plate 22. A first pivot plate 71 and a second pivot plate 72 are fixed to the rear end portion of the seat plate 22 and the rear end portion of the lifting plate 6 by bolts, respectively, and the lower end of the first pivot plate 71 is pivotally connected to the lower end of the second pivot plate 72. The front end of the seat plate 22 can thereby be rotated with respect to the lift plate 6, and the structure is stable.

As shown in fig. 1,2 and 3, the leg rest linkage 5 includes a drive plate 50, a first link 51, a second link 52 and a third link 53. The middle portion 502 of the driving plate 50 is pivotally connected to the front end portion of the lifting plate 6, the front end of the first link 51 is pivotally connected to the lower end 501 of the driving plate 50, the rear end of the second link 52 is pivotally connected to the rear end of the first link 51, the front end of the second link 52 is pivotally connected to a link 211 of the leg rest assembly 21, the lower end of the third link 53 is pivotally connected to the second link 52, and the upper end is pivotally connected to the seat plate 22.

The seat lift linkage 3 includes a fourth link 31 and a fifth link 32. The lower end of the fourth link 31 is pivotally connected to the driving plate 50, the upper end of the fourth link is pivotally connected to the front end of the fifth link 32, the rear end of the fifth link 32 is pivotally connected to the seat plate 22, and the seat plate 22 has a supporting member 221 against which the fifth link 32 rotates upward. Specifically, the support member 221 is a positioning sleeve fixed to the side surface of the seat plate 22 by a pin, and the positioning sleeve is located at a position near the front end of the seat plate 22. A protrusion 321 protruding forward is provided at the front end position of the fifth link 32, and the protrusion 321 has a stepped surface for supporting the position sleeve.

The motor end of first push rod motor 4 is connected on the rear end position of chassis 1 through a U type pin joint seat, and the push rod of first push rod motor 4 is served and is connected with first motor pipe 41 through a U type pin joint seat to be connected, fixed with drive plate 50 through first motor pipe 41, first push rod motor 4 can drive lift plate 6 upwards promote or drive plate 50 and put the flexible and the lift of seat board 22 front end of leg subassembly 21 with the linkage for lift plate 6 rotates.

As shown in fig. 1, 5 and 6, the second push rod motor 8 is connected to the backrest module 23 to drive the backrest module 23 to swing back and forth. Namely, a second motor tube 82 is pivoted on the motor end of the second push rod motor 8 through a U-shaped pivoting seat, and two ends of the second motor tube 82 are respectively fixed on the connecting support part 62; the push rod end of the second push rod motor 8 is connected with a third motor pipe 81 through a U-shaped pin joint seat, and two ends of the third motor pipe 81 are respectively fixed on the backrest component 23.

Specifically, the backrest assembly 23 includes a backrest plate 231 and a support plate 232. A connecting part 222 extending upwards is arranged at the rear end position of the seat plate 22, and the lower front end position of the backrest plate 231 is pivoted at the upper end of the connecting part 222; the supporting plate 232 is fixed to the lower rear end of the back plate 231 by a plurality of screws, and is used for fixing the third motor pipe 81 on the second push rod motor 8, so as to drive the back plate 231 to rotate relative to the connecting portion 222, so as to adjust the backrest angle.

The seat lifting linkage 3 further includes a linkage 33, a front end of the linkage 33 is pivoted to a rear end of the fifth link 32, and a pivoting position of the linkage 33 and the fifth link 32 is higher than a pivoting position of the fifth link 32 and the seat plate 22. The back end of the linking rod 33 is pivoted with the upper front end of the supporting plate 232. The linkage 33 facilitates further lifting of the front end of the seat plate 22, thereby improving the comfort of lying.

The front end portion of the seat plate 22 has an arc-shaped guide groove 61, and the driving plate 50 has a guide pin 9 which is guided to fit the arc-shaped guide groove 61 and through which the lower end of the fourth link 31 is connected. The driving plate 50 and the fourth link 31 are respectively located at the inner and outer sides of the lifting plate 6.

In a specific use of the present invention, as shown in fig. 6, the present embodiment is in a completely folded state, in which the connection support part 62 at the front end of the lifting plate 6 is supported on the base frame 1, and the support tube 10 connected to the rear end of the lifting plate 6 is supported on the top of the mounting plate 11 for a user to sit normally, and the structure is stable;

when the user is an old person or a patient, and the auxiliary standing of the invention is needed due to the inconvenience of movement, the first push rod motor 4 is started on the basis of normal lying and sitting, the first push rod motor 4 is extended, and because the guide pin 9 is located at the foremost position of the arc-shaped guide groove 61 in the normal sitting position, the upper end of the drive plate 50 cannot continue to rotate forwards, so the lifting plate 6 with the seat frame 2 is lifted upwards under the auxiliary support of the upper lifting rod 13 and the lower lifting rod 12 along with the extension of the first push rod motor 4, and simultaneously the front ends of the upper lifting rod 13 and the lower lifting rod 12 also rotate upwards along with the lifting, and the height of the rear end of the seat plate 22 is gradually higher than that of the front end of the seat plate 22. With the lifting plate 6 lifted upwards, the second motor tube 82 and the upper lifting rod 13 approach gradually until the two abut against each other, and the lifting plate cannot be lifted continuously, and meanwhile, the lifting frame reaches the balance position as shown in fig. 7, and in this state, the standing convenience of the user can be improved.

When other sitting postures need to be adjusted in the normal sitting posture, on the basis of the normal sitting posture which is a complete folding state, the first push rod motor 4 is started, the first push rod motor 4 is made to contract, the upper end of the driving plate 50 is driven to rotate backwards and upwards, namely the driving plate 50 rotates clockwise, the lower end of the driving plate 50 rotates forwards to pull the first connecting rod 51 to swing forwards, meanwhile, the second connecting rod 52 is driven to swing forwards, and after the second connecting rod 52 swings forwards, the connecting rod 211 connected with the second connecting rod 52 in the leg placing component 21 can be driven to swing forwards, so that the leg placing component 21 is unfolded to be placed on the legs of a user. Simultaneously with the clockwise rotation of the driving plate 50, the fourth link 31 connected to the guide pin 9 is lifted up to drive the front end of the fifth link 32 to rotate upward, the fifth link 32 is supported on the support member 221 to drive the front end position of the seat plate 22 to be lifted up relative to the rear end position, and a slight zero gravity effect, that is, the fully open state of the legs, is realized as shown in fig. 4.

When the gravity is slightly zero and needs to be further adjusted, the second push rod motor 8 is started, the second push rod motor 8 contracts to drive the back board 231 and the supporting plate 232 to synchronously rotate clockwise, so that the inclination angle of the back board 231 is larger, and the lying posture state is realized; after the supporting plate 232 rotates clockwise, the pivot point between the supporting plate 232 and the linkage 33 moves forward, so that the linkage 33 is driven to move forward, the linkage 33 pushes the fifth link 32 to rotate counterclockwise, and the fifth link 32 drives the front end of the seat plate 22 to further lift under the supporting action of the fourth link 31, thereby realizing a complete zero-gravity lying posture state.

In each switching step, the previous state can be recovered only by reverse driving.

Since leg rest assembly 21 is prior art, the present embodiment will not be described in detail with respect to leg rest assembly 21.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally 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.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a two motor branch accuse types height bears zero gravity old man chair iron stand, characterized by: the lifting mechanism comprises a lifting plate, a seat frame, a leg placing connecting rod group, a seat lifting connecting rod group, a first push rod motor and a second push rod motor;

2. The dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame as claimed in claim 1, wherein the dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame is characterized in that: the backrest assembly comprises a backrest plate and a support plate;

3. The dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame as claimed in claim 2, wherein the dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame is characterized in that: the seat lifting connecting rod group also comprises a linkage rod, the front end of the linkage rod is pivoted with the rear end of the fifth connecting rod, and the rear end of the linkage rod is pivoted with the upper front end part of the supporting plate.

4. The dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame as claimed in claim 1, wherein the dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame is characterized in that: an arc-shaped guide groove is formed in the front end of the seat plate, and a guide pin which is in guide fit with the arc-shaped guide groove and is used for connecting the lower end of the fourth connecting rod is arranged on the driving plate.

5. The dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame as claimed in claim 1, wherein the dual-motor separately-controlled high-bearing zero-gravity old people chair iron frame is characterized in that: the lifting device also comprises an underframe, an upper lifting rod and a lower lifting rod;