CN212437959U

CN212437959U - Linkage type side frame structure

Info

Publication number: CN212437959U
Application number: CN202021018177.1U
Authority: CN
Inventors: 李义仁; 吴文明; 王炎
Original assignee: Huzhou Hengxin Metal Products Co ltd
Current assignee: Huzhou Hengxin Metal Products Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-02
Anticipated expiration: 2030-06-05

Abstract

The utility model relates to the field of furniture articles, in particular to a linkage type side frame structure; the method comprises the following steps: the side frame mechanism sequentially comprises a leg support assembly and a chair back adjusting assembly which is linked with the leg support assembly, the chair back adjusting structure further comprises a lifting assembly capable of lifting the height of the linkage rod, and the lifting assembly is mounted on the mounting plate; so as to realize the simultaneous linkage reaction of the leg support component and the chair back adjusting component driven by one linkage rod.

Description

Linkage type side frame structure

Technical Field

The utility model relates to the field of furniture articles for use, especially, relate to a linkage type side bearer structure.

Background

With the rapid increase of national economy, the aging problem of China is gradually concerned by society, the health of the old is also gradually emphasized, and the product design suitable for the old becomes the service key point of the aging society; as the age gradually increases, the bone of the old is loose, so that the legs and the feet of most of the old are not good, the old can stand for a long time and is hard, and the sitting time and the lying time are far longer than the standing time; therefore, the demand of the old people chair is increased day by day, and the old people chair has a great development space in the domestic market.

At present, for the old people chair, a chair back component and a leg supporting component are usually arranged on the side frame structure of most of the old people chairs, but the backward tilting and the stretching of the chair back component and the leg supporting component are mostly controlled respectively, namely the chair back component and the leg supporting component are respectively provided with a driving mechanism to complete the backward tilting and stretching movement, but the arrangement has the obvious problems that the connection between the mechanisms is too complex, the installation difficulty is high, and the whole chair is more heavy and is not easy to move.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can make leg hold in the palm subassembly and back of the chair subassembly side bearer structure that linkage effect takes place simultaneously.

In order to achieve the above object, the main technical solution of the present invention is a linkage type side frame structure, comprising:

mounting a plate; and

the side frame mechanism is fixedly connected to the mounting plate and sequentially comprises a leg support assembly and a chair back adjusting assembly which is linked with the leg support assembly;

the chair back adjusting assembly comprises an installation plate, an L-shaped chair back piece, a supporting piece and a linkage rod; the bevel end of the L-shaped chair back piece is hinged to the mounting plate through a supporting piece, the bevel end of the L-shaped chair back is hinged to the supporting piece, and the other end of the L-shaped chair back piece is hinged to the linkage rod; the linkage rod can move back and forth relative to the mounting plate, the chair back adjusting structure further comprises a lifting assembly capable of lifting the height of the linkage rod, and the lifting assembly is mounted on the mounting plate;

the leg support assembly comprises a leg support piece, a second lifting auxiliary piece and a scissor type telescopic frame, the leg support piece is arranged at the front end of the scissor type telescopic frame, the rear end of the scissor type telescopic frame is hinged to the linkage rod, and two ends of the second lifting auxiliary piece are hinged to the mounting plate and the scissor type telescopic frame respectively; according to the technical scheme, the leg support assembly and the chair back assembly are connected together through the arrangement of the linkage rod and the forward and backward movement of the linkage rod, and the leg support assembly and the chair back assembly can simultaneously perform linkage reaction through the forward and backward movement of the linkage rod; in addition, the riser assembly also raises the height of the leg rest assembly and the seat back assembly and allows for a greater recline angle of the seat back assembly.

In some examples, the scissor jack includes an L-shaped link having a dog-leg end hinged to the second lifting aid.

In some examples, the leg support assembly further comprises a limiting rotating rod, one end of the limiting rotating rod is hinged to the mounting plate, and the other end of the limiting rotating rod is hinged to the rod body of the L-shaped connecting rod.

In some examples, the lifting subassembly includes lifting piece and first lifting auxiliary member, the top of lifting piece articulate in on the gangbar, the one end of first lifting auxiliary member articulates on the mounting panel, and the other end articulates on the middle part body of lifting piece.

In some examples, the linkage rod is provided with a stop pillar, and the stop pillar abuts against the lifting piece in the lifting process.

In some examples, the mounting plate is provided with a first limiting column and a second limiting column, and the lifting piece is located between the first limiting column and the second limiting column.

In some examples, the lifting piece is 3-shaped, and when the lifting piece is lifted to the maximum height, the bottom end of the lifting piece is abutted against the first limiting column.

In some examples, the bottom of the first lifting auxiliary member is provided with a first limiting groove with a downward opening; the first limiting groove abuts against the second limiting column to limit the downward displacement of the linkage rod.

In some examples, the linkage rod is in a J-shaped structure, and a folded end of the linkage rod is hinged to the top end of the lifting piece.

In some examples, one end of the first lifting aid is provided with a first adjusting limit hole; the first lifting auxiliary piece is hinged to the mounting plate through the first adjusting limiting hole; one end of the second lifting auxiliary part is provided with a second adjusting limiting hole, and the second lifting auxiliary part is hinged to a connecting rod body on the fork type telescopic frame through the second adjusting limiting hole.

The utility model adopts the technical proposal to realize the driving by one driving mechanism and simultaneously make the leg support component and the chair back component generate linkage reaction; on the basis of reducing the cost, the complexity of the mechanism can be simplified, and the installation and the connection are convenient.

Drawings

Figure 1 is a schematic structural view of an embodiment of the present invention,

FIG. 2 is a schematic structural diagram of the frame of the geriatric chair in the assisted-rising state of the embodiment of FIG. 1,

FIG. 3 is a schematic view of the frame of the geriatric chair in the extended state of the leg rest of the embodiment of FIG. 1,

fig. 4 is a schematic structural view of the frame of the geriatric chair in the reclining chair state of the embodiment of fig. 1,

FIG. 5 is a schematic view of the seat frame of the embodiment of FIG. 1 in a power-assisted rising state,

fig. 6 is a schematic view of the side frame mechanism in an initial state of the embodiment of fig. 1,

fig. 7 is a schematic view of the side frame mechanism in an extended state of the leg rest of the embodiment of fig. 1,

fig. 8 is a schematic view of the side frame mechanism in the lounge chair position of the embodiment of fig. 1,

figure 9 is a schematic diagram of the construction of the chair back adjustment assembly of the embodiment of figure 1,

in the figure: the lifting device comprises a movable piece 1, an adjusting connecting rod 2, a leg support piece 3, a scissor type telescopic frame 4, a cross beam 5, a base 6, a rotating rod 7, a fixed seat 8, a driving part 9, a telescopic part 10, a linkage rod 11, an L-shaped chair back piece 12, a supporting piece 13, a baffle column 14, an L-shaped connecting rod 16, a movable seat 17, a limiting rotating piece 18, a third limiting column 19, a second lifting auxiliary piece 20, a second limiting column 21, a lifting piece 22, a first limiting column 23, a first lifting auxiliary piece 24, a fixed piece 25, a seat surface frame 27, a lifting frame 28, a limiting piece 29, a circular gasket 30, a mounting plate 31, a chair back adjusting component 32 and a handrail framework 33.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning that a number of one element may be one in one embodiment or multiple in another embodiment, and the terms "a" and "an" are not to be interpreted as limiting the number.

The first embodiment is as follows:

referring to fig. 1 to 9 of the drawings of the present application, a framework structure of a linkage-type geriatric chair according to a preferred embodiment of the present invention is illustrated, the chair back framework mechanism includes a mounting plate 31, a chair seat framework and side frame mechanisms connected and fixed to both sides of the chair seat framework through the mounting plate 31; specifically, the chair seat framework comprises a base 6, a base 6 lifting mechanism and a telescopic mechanism, wherein the base 6 is used for supporting the base 6 lifting mechanism, a side frame mechanism, a mounting plate 31 and the like, the telescopic mechanism is used as a power source of the whole linkage type old man chair framework, in the embodiment, the base 6 is in a # -shaped shape, the telescopic mechanism comprises a driving part 9 for providing the power source and a telescopic part 10 driven by the driving part 9, the driving part 9 can be a driving motor, a cylinder and the like, the telescopic part 10 can be a telescopic rod, one end of the telescopic mechanism is hinged to the base 6, and the other end of the telescopic mechanism is connected to a cross beam 5 at the front end of a seat; the base 6 lifting mechanism comprises a seat frame 27 and lifting frames 28 symmetrically arranged on two sides of the base 6, a flexible substance is arranged outside the seat frame 27 to form a seat surface for a user to seat, the bottom frame is formed by sequentially enclosing two cross beams 5 and two side plates, the front end of the seat frame 27 is connected to the two lifting frames 28, the other end of the lifting frame 28 is connected to the base 6, the seat frame 27 can rotate relative to the lifting frame 28, and the lifting frames 28 can rotate relative to the base 6; under the above solution, the embodiments of the lifting frame 28 are two, and one embodiment may be implemented to include at least one rotating rod 7, and both ends of the rotating rod 7 are respectively hinged to the front ends of the base 6 and the seat frame 27; another embodiment is that the lifting frame 28 includes two rotating rods 7, a fixed seat 8 and a movable seat, two ends of each rotating rod 7 are respectively hinged to the fixed seat 8 and the movable seat, the fixed seat 8 is mounted on the base 6, and the movable seat is connected and fixed to the front end of the seat frame 27, in this embodiment, the latter scheme is further adopted, in the rotating process, by virtue of the telescopic motion of the telescopic mechanism, the rotating rod 7 rotates clockwise around the connection point of the rotating rod 7 and the fixed seat 8, and the movable seat rotates counterclockwise around the connection point of the rotating rod 7 and the movable seat, so as to lift the bottom surface frame, so that the seat frame structure realizes the switching between the initial state and the assisted rising state; when the chair seat framework structure is in an assisted rising state, a connecting line from the rear end to the front end of the seat surface framework 27 forms an inclination angle with a horizontal line, in the whole lifting process, the gravity center of the lifting mechanism of the base 6 always falls into an area formed by the base 6, so that the whole linkage type old people chair framework is prevented from falling down due to lifting, and the inclination of the seat surface framework 27 relative to the horizontal plane angle is beneficial to the forward movement of the gravity center of a sitting person, so that the rising is more labor-saving; in addition, as shown in fig. 4 to 5, when the seat frame is in the initial state, one side of the movable seat is vertical to the horizontal plane; when the chair seat framework is in the power-assisted rising state, one side of the movable seat forms a certain inclination angle relative to the horizontal plane.

In this embodiment, the cross beam 5 is a square tube structure, the end of the movable seat is provided with an inwardly recessed square groove, and the beam body of the cross beam 5 is connected and fixed in the square groove, so that the structure can be lifted in a labor-saving manner; because the lifting in-process, square pipe and recess both sides inner wall offset and then can drive the sliding seat more laborsavingly.

As a preferred embodiment, the seat frame further includes a fixing member 25 and a moving member 1, the fixing member 25 is mounted on the cross beam 5 at the front end of the seat frame 27, the bottom end of the moving member 1 is hinged to the fixing member 25, the fixing member 25 includes a limiting portion, the top end of the moving member 1 is hinged to the telescoping mechanism, in the lifting process, the telescoping mechanism stretches and retracts to drive the moving member 1 to rotate relative to the fixing member 25, and rotates to abut against the limiting portion to stop, and then the seat frame 27 is continuously driven to rotate relative to the lifting frame 28; when the telescopic mechanism retracts back, the seat frame returns to the initial state, the rear end of the seat frame 27 falls on the top end of the fixed seat 8, the rear end of the seat frame 27 can be limited to move downwards, in order to prevent the top end of the fixed seat 8 from wearing the rear end of the seat frame 27, the top of the fixed seat 8 is provided with a circular gasket 30, and a beam body of the cross beam 5 positioned at the rear end of the seat frame 27 falls on the gasket and plays a role in buffering; on the same principle, the outer side wall of the rotating rod 7 close to the base 6 is provided with a limiting member 29 for preventing the lifting frame 28 from moving downwards, and when one end surface of the limiting member 29 collides with the base 6, the lifting frame 28 is fixed in position.

In addition, during the process of switching from the initial state to the lifting state, the telescopic component 10 expands and contracts axially and rotates circumferentially relative to the base 6.

The movable piece 1 is fixedly connected with an adjusting connecting rod 2, and the adjusting connecting rod 2 mainly acts on the side frame mechanism to enable the side frame mechanism to generate a linkage change effect.

Specifically, the side frame mechanisms are fixedly connected to side plates on two sides of the seat frame 27 through mounting plates 31, and each side frame mechanism comprises a leg support assembly capable of extending and retracting and a chair back adjusting assembly 32 capable of tilting and lifting; under the above scheme, the leg support assembly and the chair back adjusting assembly 32 in the side frame mechanism comprise a technical scheme of respectively performing a telescopic expansion mode and a technical scheme of a linkage telescopic expansion mode, if the telescopic display mode is adopted, the leg rest assembly needs a power part capable of driving the leg rest assembly to extend, the chair back adjusting assembly 32 also needs a power part capable of driving the chair back adjusting assembly to recline, and the embodiment is further explained mainly by the technical scheme of linkage of the two, wherein, in the embodiment, the chair back adjusting component 32 comprises a leg support 3, a second lifting auxiliary 20 and a scissor-type telescopic frame 4, the leg support 3 is arranged at the front end of the scissor type telescopic frame 4, the rear end of the scissor type telescopic frame 4 is hinged on the linkage rod 11, the two ends of the second lifting auxiliary member 20 are respectively hinged to the mounting plate 31 and the scissor type telescopic frame 4; the scissor-type telescopic frame 4 comprises an L-shaped connecting rod 16, and the folded end of the L-shaped connecting rod 16 is hinged to the end part of the second lifting auxiliary element 20; the leg support assembly comprises an L-shaped chair back component 12, a supporting component 13 and a linkage rod 11; the bevel end of the L-shaped chair back piece 12 is hinged to the mounting plate 31 through a support piece 13, the bevel end of the L-shaped chair back is hinged to the support piece 13, and the other end of the L-shaped chair back piece 12 is hinged to the linkage rod 11; the linkage rod 11 can move back and forth relative to the mounting plate 31, the chair back adjusting structure further comprises a lifting assembly capable of lifting the height of the linkage rod 11, the lifting assembly is mounted on the mounting plate 31, and two ends of the adjusting connecting rod 2 are hinged to the rod bodies of the linkage rod 11 on two sides of the seat surface frame 27 respectively; the lifting assembly mainly lifts the height of the linkage rod 11, and moves backwards in combination with the linkage rod 11, so that the backward tilting angle of the L-shaped chair back piece 12 is larger, in this embodiment, the lifting assembly comprises a lifting piece 22 and a first lifting auxiliary piece 24, the top end of the lifting piece 22 is hinged to the linkage rod 11, one end of the first lifting auxiliary piece 24 is hinged to the mounting plate 31, the other end of the first lifting auxiliary piece is hinged to the middle piece body of the lifting piece 22, and the linkage rod 11 is provided with a blocking column 14; the telescopic part 10 contracts backwards, so that the adjusting connecting rod 2 drives the linkage rod 11 to move backwards, the linkage rod moves backwards to the stop column 14 to abut against the lifting part 22, and the second lifting auxiliary part 20 props against the corner end of the L-shaped connecting rod, so that the scissor-type telescopic frame 4 extends forwards, and the switching of the skeleton structure of the old people chair from an initial state to a leg support extension state is realized.

In this embodiment, the lifting member 22 is 3-shaped, the middle of the lifting member 22 is bent to be hinged to one end of the first auxiliary lifting member 24, the mounting plate 31 is provided with a first limiting column 23 and a second limiting column 21, the lifting member 22 is located between the first limiting column 23 and the second limiting column 21, and when the bottom end of the lifting member 22 abuts against the first limiting column 23, the lifting height of the linkage rod 11 is limited; the bottom of the first lifting auxiliary piece 24 is provided with a first limiting groove with a downward opening, and the first limiting groove abuts against the second limiting column 21 to limit the downward displacement of the linkage rod 11; in this embodiment, the linkage rod 11 is a J-shaped structure, and the bevel end of the linkage rod 11 is hinged to the top end of the lifting member 22; on the basis that the frame of the old man chair is in a leg support extension state, the telescopic component 10 continues to retract, then the second lifting auxiliary component 20 lifts the scissor type telescopic frame 4, the first lifting auxiliary component 24 starts to rotate and drives the lifting component 22 to move upwards, and when the second lifting auxiliary component moves upwards to the bottom end of the lifting component 22 and abuts against the first limiting column 23, lifting is limited, meanwhile, one end of the linkage rod 11 pushes up the L-shaped chair back component 12, so that the L-shaped chair back component 12 rotates around the connecting point of the L-shaped chair back component 12 and the supporting component 13, and the supporting component 13 rotates relative to the mounting plate 31, and further a larger tilting angle is realized; the switching of the skeleton structure of the old people chair from a leg support stretching state to a deck chair state is realized.

In addition, in order to limit the downward movement of the leg rest assembly, a second limiting groove with a downward opening is arranged at the bottom of the second lifting auxiliary member 20, a third limiting column 19 is arranged on the mounting plate 31, and the downward movement of the leg rest assembly is limited when the second limiting groove abuts against the third limiting column 19; in this embodiment, the leg rest assembly further includes a limiting rotation component 18, one end of the limiting rotation component 18 is hinged to the mounting plate 31, and the other end is hinged to the rod body of the L-shaped connecting rod 16, and the limiting rotation component 18 limits the upward displacement of the scissor type telescopic frame 4; one end of the first lifting auxiliary 24 is provided with a first adjusting limit hole; the first lifting auxiliary member 24 is hinged on the mounting plate 31 through the first adjusting limit hole; one end of the second lifting auxiliary 20 is provided with a second adjusting limit hole; and the second tire lifting auxiliary part is hinged on a connecting rod body on the fork type telescopic frame through a second adjusting limiting hole.

Example two:

the embodiment provides an old people chair, which comprises the linked old people chair framework and a flexible substance arranged outside the linked old people chair framework, wherein the flexible substance can be a sponge cushion and the like; the lateral wall of gangbar 11 is connected and is fixed with handrail skeleton 33, handrail skeleton 33 outside sets up the handrail portion that flexible material formed the geriatric chair, connect the chair back board between the L type back of the chair spare 12 of both sides, the chair back board outside sets up the chair back portion that flexible material formed the geriatric chair, flexible material forms the seat face portion of geriatric chair in seat frame 27 outside is laid.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention.

The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A ganged sideframe structure, comprising:

mounting a plate; and

the chair back adjusting component comprises a mounting plate, an L-shaped chair back piece (12), a supporting piece (13) and a linkage rod (11); the bevel end of the L-shaped chair back piece (12) is hinged to the mounting plate through a support piece (13), the bevel end of the L-shaped chair back is hinged to the support piece (13), and the other end of the L-shaped chair back piece (12) is hinged to the linkage rod (11); the linkage rod (11) can move back and forth relative to the mounting plate, the chair back adjusting structure further comprises a lifting assembly capable of lifting the height of the linkage rod (11), and the lifting assembly is mounted on the mounting plate;

the leg holds in the palm the subassembly and includes that the leg holds in the palm piece (3), second lifting auxiliary member (20) and cuts fork expansion bracket (4), the front end of cutting fork expansion bracket (4) is set up in leg support piece (3), the rear end of cutting fork expansion bracket (4) articulates on gangbar (11), the both ends of second lifting auxiliary member (20) articulate respectively on the mounting panel and cut fork expansion bracket (4).

2. A ganged side frame structure as claimed in claim 1, characterised in that the scissor jack (4) comprises an L-shaped link (16), the angled end of the L-shaped link (16) being hinged to the second lifting aid.

3. A ganged side frame structure as claimed in claim 1, in which the legrest assembly further comprises a limit pivot rod, one end of which is hinged to the mounting plate and the other end of which is hinged to the body of the L-shaped link (16).

4. The linkage type side frame structure according to claim 1, wherein the lifting assembly comprises a lifting piece (22) and a first lifting auxiliary piece (24), the top end of the lifting piece (22) is hinged on the linkage rod (11), one end of the first lifting auxiliary piece (24) is hinged on a mounting plate, and the other end of the first lifting auxiliary piece is hinged on a middle piece body of the lifting piece (22).

5. A linkage type side frame structure according to claim 4, characterized in that the linkage rod (11) is provided with a blocking column (14), and during lifting, the blocking column (14) is abutted against the lifting piece (22).

6. The linkage type side frame structure according to claim 4, wherein a first limiting column (23) and a second limiting column (21) are arranged on the mounting plate, and the lifting piece (22) is located between the first limiting column (23) and the second limiting column (21).

7. The linkage type side frame structure according to claim 6, wherein the lifting piece (22) is 3-shaped, and when the lifting piece is lifted to the maximum height, the bottom end of the lifting piece (22) is abutted against the first limiting column (23).

8. The linkage type side frame structure according to claim 6, wherein the bottom of the first lifting auxiliary member (24) is provided with a first limiting groove with a downward opening; the first limiting groove is abutted against the second limiting column (21) to limit the downward displacement of the linkage rod (11).

9. The ganged side frame structure according to claim 4, characterized in that the ganging bar (11) is a J-shaped structure, and the dog-ear end of the ganging bar (11) is hinged to the top end of the lifting piece (22).

10. The linkage type side frame structure according to claim 4, characterized in that one end of the first lifting auxiliary piece (24) is provided with a first adjusting limit hole; the first lifting auxiliary piece (24) is hinged on the mounting plate through the first adjusting limiting hole; one end of the second lifting auxiliary part (20) is provided with a second adjusting limiting hole, and the second lifting auxiliary part is hinged to a connecting rod body on the fork type telescopic frame through the second adjusting limiting hole.