CN220631619U - Adjustable chair frame and chair - Google Patents

Abstract

The utility model provides an adjustable chair frame and a chair, wherein the chair frame comprises a first bracket, a second bracket, a first connecting frame and a supporting frame, two ends of the first connecting frame are respectively connected with the first bracket and the second bracket, and two sides of the supporting frame are hinged with the first bracket and the second bracket. The chair frame is formed by combining the first support, the second support, the first connecting frame and the supporting frame, and can be attached to a stool of a common office chair, so that the chair is multipurpose. And the angle of the support frame can be adjusted, the heights of the shoulder rest structure and the head rest structure can be adjusted, when the reverse seat is relaxed, the second backrest support can also support the chest, and the arm can be placed on the armrest to stretch and relax the arm. The whole chair frame can be mounted on the underframe, and the seat cushion is a complete chair.

Description

Adjustable chair frame and chair

Technical Field

The utility model relates to the technical field of chairs, in particular to an adjustable chair frame and a chair.

Background

At present, the main function of the ergonomic chair is a back rest, and for some offices or families, the existing chairs or sofas are enough, but some of the existing chairs have no back rest function.

The seat can cause great damage to lumbar vertebra and cervical vertebra of a sedentary person, so that the sedentary person has soreness and backache and fatigue of neck and shoulder, and the working and learning efficiency is reduced. Some existing functional chairs are generally reclined to relax, but the backward leaning cannot be considered. When it is desired to achieve a relaxed state, sometimes the back is sitting in reverse, i.e. the chest is close to the backrest, even though the arms are also in a vertical position, studies have shown that lifting a bit is required to relax the arms, so that appropriate stretching can be performed, and conversely sitting can correct the pressure caused by chest-containing humpbacks on the body. The existing chair has single function, can only be used as a back rest, and can not be realized when the existing chair needs multiple sitting postures such as sitting, lying or lying when relaxing.

Disclosure of Invention

The utility model provides an adjustable chair frame and a chair, which aim at the problems that the existing chair is integral, the back cannot be independently detached and installed on the existing chair, the existing function can only meet the single back-rest sitting posture, the sitting posture is single in form, other sitting postures cannot be selected to relieve when the back muscles and the spine are tired, and the work and the relaxation cannot be combined.

In order to achieve the above object, the present utility model provides the following technical solutions:

in one aspect, the application provides an adjustable chair frame, including first support, second support, first link and support frame, the both ends of first link respectively with first support and second support connection, the both sides of support frame with first support, second support are articulated.

The utility model provides a chair frame can place the lower part of current chair with first link, and the both sides of first link are passed through the bolt and are connected firm with first support and second support, and the both sides of support frame are connected with first support and second support respectively to can be applied to the chair that most do not have the back with this kind of chair frame on, the suitability is stronger.

Preferably, the first connecting frame is a telescopic frame; the second support is provided with an adjusting mechanism, the adjusting mechanism is used for adjusting the angle between the support frame and the first support and the angle between the support frame and the second support, the adjusting mechanism comprises a first latch, a second latch, a first connecting column and a pressing part, the first support is provided with a perforation, the first latch is arranged on the inner wall of the perforation, the first connecting column is arranged at the position, close to the perforation, of the support frame, the second latch is arranged on the first connecting column, and the other end of the first connecting column is connected with the pressing part. The length of the first connecting frame can be adjusted according to the width of the existing chair, so that the first connecting frame, the first bracket and the second bracket are better in stability after being assembled with the existing chair. The angle between the support frame and the chair can be adjusted by the adjusting mechanism.

Preferably, the support frame comprises a first support, a second support and a second connecting frame, wherein second connecting columns are arranged on two sides of the second connecting frame, and the first support and the second support are respectively located on two sides of the second connecting frame. The support frame is divided into two parts, and the middle parts are connected through the second connecting frame, so that the installation and the transportation are convenient.

Preferably, the second connecting frame is provided with a waist support structure, the waist support structure comprises a first connecting block and a waist support frame, and the waist support frame is arranged on the second connecting frame through the first connecting block. The waist support bracket is provided with a triangular adjusting frame, and the angle of the triangle adjusting frame can be adjusted.

Preferably, the device further comprises a third support, wherein an adjusting hole is formed in the third support, the height adjusting knob penetrates through the adjusting hole to be connected with the second connecting frame, the adjusting hole is a strip-shaped hole, the third support accords with ergonomics, and the height of the third support can be adjusted through the height adjusting knob.

Preferably, the shoulder rest structure is mounted on the third support, the shoulder rest structure comprises a first backrest bracket and a second backrest bracket, the first backrest bracket is mounted on two sides of the third support, and the second backrest bracket is connected with the third support through bolts; armrests are arranged on two sides of the second backrest bracket. The softness comfortable cushion is installed on the second back support, and when the work second back support plays the effect of supporting the shoulder, when relaxing and sitting conversely, the chest can be supported to the second back support, and the arm can be placed on the handrail for the arm obtains suitable stretching and relaxing.

Preferably, the top of the third support is also provided with a head support structure, the head support structure comprises a first head support frame and a second head support frame, the first head support frame is L-shaped, the first head support frame is connected with the third support, and the second head support frame is hinged with the first head support frame. The head support can play the supporting role to the head when the work, and when relaxing, can place the chin to the top of head support, relax the neck.

On the other hand, the application also provides an adjustable chair, which comprises the chair frame, wherein the first connecting frame is arranged on the underframe, and the seat cushion is arranged on the underframe. A seat cushion is mounted on the base frame by mounting the first bracket, the second bracket and the first link to the base frame to form a chair.

Preferably, the seat cushion is hemispherical, the middle part of the seat cushion is hollow, an adjusting rod is arranged on the first connecting frame, a stool is arranged on the adjusting rod, the stool is positioned in the middle part of the seat cushion, an adjusting handle is arranged on the adjusting rod, the middle part of the seat cushion is provided with a support, and the seat cushion can be a bean bag type lazy seat.

Preferably, universal wheels are arranged at the bottom of the underframe.

Compared with the prior art, the utility model has the beneficial effects that: the chair frame is formed through the combination of the first support, the second support, the first connecting frame and the support frame, can be suitable for most chairs without rear backrest, and can be used for various uses without buying an independent chair. And the angle of the support frame can be adjusted, the heights of the shoulder rest structure and the head rest structure can be adjusted, when the user sits in the opposite direction, the second backrest support can also support the chest, arms can be placed on the armrests, and the arms are stretched and relaxed. The whole chair frame can be mounted on the underframe, and the seat cushion is a complete chair.

Description of the drawings:

FIG. 1 is a schematic view of the structure of an adjustable chair frame provided herein;

FIG. 2 is a schematic structural view of an adjustment mechanism;

fig. 3 is a schematic structural view of the seat cushion portion.

The marks in the figure: 1-first bracket, 2-second bracket, 3-first connecting frame, 4-supporting frame, 5-first latch, 6-second latch, 7-first connecting column, 8-pressing part, 9-perforation, 10-first supporting frame, 11-second supporting frame, 12-second connecting frame, 13-second connecting column, 14-first connecting block, 15-lumbar support supporting frame, 16-third supporting frame, 17-first backrest supporting frame, 18-second backrest supporting frame, 19-handrail, 20-first head support supporting frame, 21-second head support supporting frame, 22-underframe, 23-seat cushion, 24-adjusting rod, 25-seat, 26-adjusting handle, 27-universal wheel and 28-height adjusting knob.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

As shown in fig. 1 and 2, the present application provides an adjustable chair frame that can be mounted to an existing seat or to the chassis 22 to form a chair that requires no back rest for the seat when mounted to an existing seat. The chair frame includes first support 1, second support 2, first link 3 and support frame 4, the both ends of first link 3 are connected with first support 1 and second support 2 respectively, and the both sides of first link 3 can set up the connecting block. Both sides of the supporting frame 4 are hinged with the outer sides of the first bracket 1 and the second bracket 2. In order to accommodate more seats, the first connecting frame 3 may be telescopic, for example, may be formed by two ends, so that the length of the first connecting frame 3 may be adjusted to accommodate seats of different widths.

The support frame 4 comprises a first support 10, a second support 11 and a second connecting frame 12, and the second connecting frame 12 is T-shaped. The second connecting frame 12 is provided with second connecting posts 13 at two sides, and the first support 10 and the second support 11 are respectively positioned at two sides of the second connecting frame 12. The supporting frame 4 is divided into left and right, so that the transportation is convenient, and the assembly of the supporting frame with the first bracket 1 and the second bracket 2 is also convenient.

The first support 10 is hinged with the first support 1, and the second support 2 is provided with an adjusting mechanism which is used for adjusting the angle between the support frame 4 and the first support 1 and the second support 2.

The adjusting mechanism comprises a first latch 5, a second latch 6, a first connecting column 7 and a pressing part 8, wherein a perforation 9 is arranged on the first support 1, the first latch 5 is arranged on the inner wall of the perforation 9, the first connecting column 7 is arranged at the position, close to the perforation 9, of the support frame 4, the second latch 6 is arranged on the first connecting column 7, and the other end of the first connecting column 7 is connected with the pressing part 8. The first latch 5 is meshed with the second latch 6, when the angle is required to be adjusted, the pressing part 8 is pressed, the second latch 6 is separated from the first latch 5, then the support frame 4 is rotated, after the angle is adjusted, the hand is separated from the pressing part 8, and the second latch 6 is clamped into the first latch 5. A return spring can be sleeved between the first connecting column 7 and the pressing part 8, so that the angle can be automatically reset after the angle is adjusted. The first latch 5 and the second latch 6 are combined, the structure is simple, the clamping connection is stable, and the adjusting range is larger.

The second connecting frame 12 is provided with a waist support structure, the waist support structure comprises a first connecting block 14 and a waist support frame 15, and the waist support frame 15 is arranged on the second connecting frame 12 through the first connecting block 14. The rear portion of the waist support frame 15 is provided with a triangular support block, the support block is connected with the first connecting block 14, the waist support frame 15 can rotate appropriately relative to the support block, and the connecting structure of the support block and the waist support frame 15 can adopt the existing rotating structure. A plurality of connection holes or elongated holes may be provided on the first connection block 14 so that the up-down height of the lumbar support structure may be adjusted.

A third support 16 is mounted on the second connecting frame 12, and a shoulder rest structure and a head rest structure are mounted on the third support 16. The third support 16 is provided with an adjusting hole, and the height adjusting knob 28 passes through the adjusting hole and is connected with the second connecting frame 12, and the adjusting hole is a bar-shaped hole. For example, the height adjusting knob 28 can be unscrewed, the third support 16 can be moved up and down, and after the adjustment, the height adjusting knob 28 can be screwed down. The curvature of the third support 16 is ergonomic so that the shoulder rest structure mounted thereon can better support the shoulders.

The shoulder rest structure comprises a first backrest bracket 17 and a second backrest bracket 18, wherein the first backrest bracket 17 is arranged on two sides of the third support 16, the first backrest bracket 17 provides support for the second backrest bracket 18, and the second backrest bracket 18 is connected with the third support 16 through bolts; armrests 19 are mounted on two sides of the second backrest bracket 18, and the armrests 19 can be used for stretching and releasing the arms when sitting in the opposite directions. When sitting in the reverse direction, the shoulder rest structure can support the chest and the arms rest on the armrests 19. The present application provides a second back rest 18 that has the same function as the yoga cross when the arm is in place due to the higher position, as well as the shape and shape of the yoga cross. The back is good because the back is worn on the body at any time and is not suitable for sensitive skin and long-term use.

The head support structure comprises a first head support frame 20 and a second head support frame 21, wherein the first head support frame 20 is L-shaped, the first head support frame 20 is connected with the third support 16, and the second head support frame 21 is hinged with the first head support frame 20. The first head rest support frame 20 is provided with a U-shaped opening close to the second head rest support frame 21, so that connection is facilitated, and the angle of the second head rest support frame 21 relative to the first head rest support frame 20 can be adjusted.

The chair frame that this application provided can install on current chair, certainly also can install on chassis 22 and form a brand-new chair, as shown in fig. 3, and chassis 22 that this embodiment provided is circular, and universal wheel 27 is installed to the bottom of chassis 22, can set up first support 1, second support 2 on chassis 22, also can install adjustment mechanism on chassis 22 directly, and support frame 4 is direct to be connected with chassis 22. A seat cushion 23 is mounted on the base frame 22, and the seat cushion 23 may be an existing seat cushion 23. However, the conventional seat cushion 23 is relatively hard, and can be designed into a bean bag type, so that the seat cushion can be relatively lazy and relaxed after sitting on. Of course, in order to adapt to office work, the middle part of the bean bag is hollow, an adjusting rod 24 capable of adjusting the height can be arranged in the middle part of the first connecting frame 3, a stool 25 is arranged on the adjusting rod 24, the stool 25 is positioned in the middle of the bean bag, and the height of the adjusting rod 24 is adjusted through an adjusting handle 26, which is similar to that of the existing public chair. The cushion has the filler to support, along with the regulation of bench height, beans bag part can be spherical or pumpkin-shaped, and the bench is in the highest position during spherical, can satisfy work needs, and when the bench was adjusted to the low position, the appearance was like circular pumpkin, and annular part can be handrail and headrest, can adjust the position of sitting like this, sits, lies prone, all can.

The chair frame can be attached to the stool of a common office chair, so that the chair is multipurpose, after the waist support structure is taken out, the provided reverse sitting posture can relax the neck and shoulder, reduce the spinal pressure, and can also play a role in correcting the sitting posture, and the middle vacancy enables women wearing a skirt to use. The chair frame is matched with the bean bag type stool, and can provide Buddhist sitting, kneeling, lying down sitting and lying down sitting, so that various sitting postures are realized. The shoulder rest structure provided by the back portion can correct chest-containing humpback, and can provide assistance in the first time of fatigue as compared with a fixed device, thereby realizing the purpose of using one article. The angle of the support frame can be adjusted, the height and the angle of the head support can be adjusted, the waist support can be taken out independently, and people with different heights and sitting postures can use the support frame. The support frame of this embodiment is U type, also can be Y type, I type.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a chair frame with adjustable, its characterized in that includes first support (1), second support (2), first link (3) and support frame (4), the both ends of first link (3) are connected with first support (1) and second support (2) respectively, the both sides of support frame (4) with first support (1), second support (2) are articulated.

2. Adjustable chair frame according to claim 1, characterized in that the first connecting frame (3) is a telescopic frame; be equipped with adjustment mechanism on second support (2), adjustment mechanism includes first latch (5), second latch (6), first spliced pole (7) and presses portion (8), be equipped with perforation (9) on first support (1), first latch (5) set up on the inner wall of perforation (9), first spliced pole (7) set up support frame (4) are close to perforation (9) department, are provided with second latch (6) on first spliced pole (7), the other end and the pressing portion (8) of first spliced pole (7) are connected.

3. Adjustable chair frame according to claim 1, characterized in that the support frame (4) comprises a first support (10), a second support (11) and a second connection frame (12), the second connection frame (12) being provided with second connection posts (13) on both sides, the first support (10) and the second support (11) being located on both sides of the second connection frame (12), respectively.

4. An adjustable chair frame according to claim 3, characterized in that the second connecting frame (12) is provided with a lumbar support structure comprising a first connecting block (14) and a lumbar support frame (15), the lumbar support frame (15) being mounted on the second connecting frame (12) by means of the first connecting block (14).

5. The adjustable chair frame according to claim 3 or 4, further comprising a third support (16), wherein the third support (16) is provided with an adjustment hole, and wherein a height adjustment knob (28) is connected to the second connection frame (12) through the adjustment hole, wherein the adjustment hole is a bar-shaped hole.

6. The adjustable chair frame according to claim 5, characterized in that the third support (16) is mounted with a shoulder rest structure comprising a first back rest support (17) and a second back rest support (18), the first back rest support (17) being mounted on both sides of the third support (16), the second back rest support (18) being connected to the third support (16) by means of bolts; armrests (19) are arranged on two sides of the second backrest bracket (18).

7. The adjustable chair frame according to claim 5, wherein the top of the third support (16) is further provided with a head rest structure, the head rest structure comprises a first head rest support (20) and a second head rest support (21), the first head rest support (20) is L-shaped, the first head rest support (20) is connected with the third support (16), and the second head rest support (21) is hinged with the first head rest support (20).

8. An adjustable chair comprising a chair frame according to any one of claims 1-7, said first connecting frame (3) being mounted on a chassis (22), said chassis (22) being provided with a seat cushion (23).

9. The adjustable chair according to claim 8, wherein the seat cushion (23) is hemispherical, the middle part of the seat cushion (23) is hollow, the first connecting frame (3) is provided with an adjusting rod (24), the adjusting rod (24) is provided with a stool (25), the stool (25) is positioned at the middle part of the seat cushion (23), and the adjusting rod (24) is provided with an adjusting handle (26).

10. Adjustable chair according to claim 8 or 9, characterized in that the bottom of the chassis (22) is provided with universal wheels (27).