CN218898929U

CN218898929U - Portable folding chair with adjustable backrest

Info

Publication number: CN218898929U
Application number: CN202223126434.5U
Authority: CN
Inventors: 侯国文
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-25
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to the technical field of folding chairs and discloses a portable folding chair with an adjustable backrest, which comprises a lower frame and an upper frame, wherein a chute is arranged on one side surface of the lower frame, a shrinkage bracket is arranged on the inner side of the chute, a bracket fixing hole and a backrest frame revolute pair are sequentially arranged on one side surface of the upper frame, a backrest bracket is arranged on the inner side of the backrest frame revolute pair, a bracket revolute pair is arranged on the inner side of the middle part of one side surface of the backrest bracket, a bracket accommodating groove is arranged on one side of the bracket revolute pair, a supporting frame is arranged on the inner side of the bracket revolute pair, a headrest bracket is arranged on one end of the backrest bracket, a headrest bracket is arranged on the inner side of the top surface of the backrest bracket, and by adopting a folding accommodating mode, the folding chair can greatly reduce occupied space, is convenient to use, the folding chair is more convenient to carry, the comfort of a user is greatly improved by adjusting the backrest, and the overall practicability is effectively improved.

Description

Portable folding chair with adjustable backrest

Technical Field

The utility model relates to the technical field of folding chairs, in particular to a portable folding chair with an adjustable backrest.

Background

The chair is provided with a backrest and armrests, the utility model of the chair is various, in order to realize portability, a disassembly method and a folding method are adopted, the volume can be reduced through the two methods, and the chair is suitable for outdoor rest or combination on a chair without the backrest.

At present, the chinese patent with the existing publication number CN216293554U discloses an outdoor portable chair, including seat support and at least three foot pipe, this seat support includes at least three connecting seat, and the seat pipe is installed to the upside of each connecting seat, and installs the stay tube between two adjacent connecting seats, and its technique can be dismantled in order to reduce the volume through the installation, but can't portable when using, can't fold the chair and will use more convenient, neglect the travelling comfort when using, the travelling comfort when leading to the use reduces.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a portable folding chair with an adjustable backrest.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a portable folding chair with an adjustable backrest, which comprises a lower frame and an upper frame, wherein an anti-slip pad is arranged at the bottom end of the lower frame, fixing screw holes are formed in the inner sides of two end parts of one side surface of the lower frame and the inner side of one side surface of the upper frame, a threaded fastener is arranged in the inner side of each fixing screw hole, a sliding groove is formed in one side surface of the lower frame, a retractable bracket is arranged in the inner side of each sliding groove, a bracket fixing hole and a backrest rotating pair are sequentially formed in one side surface of the upper frame, a backrest bracket is arranged in the inner side of the backrest rotating pair, a bracket rotating pair is arranged in the inner side of one side surface of the backrest bracket, a bracket accommodating groove is formed in one side of the bracket rotating pair, a support frame is arranged in the inner side of the backrest bracket, a headrest limiting plate is arranged at one end of the backrest bracket, a headrest rotating pair is arranged at the end part of the top end surface of the backrest bracket, and a headrest bracket is arranged in the inner side of the backrest rotating pair.

As a preferable technical scheme of the utility model, the lower frame and the upper frame are both composed of two long brackets, and are both in cuboid structure.

As a preferable technical scheme of the utility model, the lower frame and the anti-skid pad are fixedly connected, and the lower frame and the upper frame are tightly combined through the fixing screw holes by threaded fasteners.

As a preferable technical scheme of the utility model, the lower frame and the shrinkage bracket are movably connected, and the shrinkage bracket is arranged in two and is in a cuboid structure.

As a preferable technical scheme of the utility model, the bracket fixing hole is in a cuboid shape, the length and the width of the bracket fixing hole are corresponding to those of the end part of the supporting frame, the upper frame and the backrest bracket are movably connected, and the backrest bracket is in a cuboid shape.

As an optimized technical scheme of the utility model, the backrest brackets are arranged in two ways and are respectively arranged on the two long brackets of the upper frame, the backrest brackets are movably connected with the supporting frames, and the supporting frames can be placed in the bracket storage grooves in a folding way.

As a preferable technical scheme of the utility model, the backrest bracket and the headrest bracket limiting plate are fixedly connected, the backrest bracket and the headrest bracket revolute pair are fixedly connected, the headrest bracket revolute pair is movably connected with the headrest bracket, and the headrest bracket is rectangular.

Compared with the prior art, the utility model has the following beneficial effects:

the folding chair can greatly reduce occupied space by adopting a folding storage mode, is convenient to use, can be more portable by folding, greatly improves the comfort of a user by adjusting the backrest, and can effectively improve the overall practicability.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic plan view of the overall structure of the present utility model;

FIG. 2 is a schematic plan view of the lower frame structure of the present utility model;

FIG. 3 is a schematic plan view of the upper frame structure of the present utility model;

FIG. 4 is a schematic rear view of the back rest bracket structure of the present utility model;

FIG. 5 is a schematic view of the folding and stowing of the lower and upper frames of the present utility model;

in the figure: 1. a lower frame; 2. an upper frame; 3. an anti-slip pad; 4. fixing the screw holes; 5. a threaded fastener; 6. a chute; 7. a contracting bracket; 8. a bracket fixing hole; 9. a backrest frame revolute pair; 10. a backrest bracket; 11. a bracket revolute pair; 12. a rack accommodating groove; 13. a support frame; 14. headrest frame limiting plates; 15. a headrest frame revolute pair; 16. a headrest bracket.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Wherein like reference numerals refer to like elements throughout.

Example 1

As shown in fig. 1 to 5, the utility model provides a portable folding chair with an adjustable backrest, which comprises a lower frame 1 and an upper frame 2, wherein the bottom end of the lower frame 1 is provided with an anti-slip pad 3, the inner sides of two end parts of one side surfaces of the lower frame 1 and the upper frame 2 are respectively provided with a fixing screw hole 4, the inner side of the fixing screw hole 4 is provided with a threaded fastener 5, one side surface of the lower frame 1 is provided with a sliding groove 6, the inner side of the sliding groove 6 is provided with a contraction bracket 7, one side surface of the upper frame 2 is sequentially provided with a bracket fixing hole 8 and a backrest rotating pair 9, the inner side of the backrest rotating pair 9 is provided with a backrest bracket 10, the middle inner side of one side surface of the backrest bracket 10 is provided with a bracket rotating pair 11, one side of the bracket rotating pair 11 is provided with a bracket accommodating groove 12, one side of the bracket 11 is provided with a supporting bracket 13, one end of the backrest bracket 10 is provided with a headrest limiting plate 14, the end part of the top surface of the backrest bracket 10 is provided with a headrest rotating pair 15, and the inner side of the headrest bracket 15 is provided with a headrest bracket 16.

Further, the lower frame 1 and the upper frame 2 are both formed by two long brackets, and are both rectangular structures.

The lower frame 1 and the anti-skid pad 3 are fixedly connected, and the lower frame 1 and the upper frame 2 are tightly combined by penetrating the fixing screw holes 4 through the threaded fasteners 5.

The lower frame 1 and the shrinkage bracket 7 are movably connected, the shrinkage bracket 7 is arranged in two, and the shrinkage bracket is in a cuboid structure.

The bracket fixing hole 8 is rectangular, the length and width of the bracket fixing hole are corresponding to the length and width of the end part of the supporting frame 13, the upper frame 2 and the backrest bracket 10 are movably connected, and the backrest bracket 10 is rectangular.

The back support 10 is two sets up, sets up respectively on two long supports of upper frame 2, and back support 10 and support frame 13 are swing joint, and its support frame 13 can place the folding placement in the support storage tank 12.

The backrest bracket 10 and the headrest bracket limiting plate 14 are fixedly connected, the backrest bracket 10 and the headrest bracket revolute pair 15 are fixedly connected, the headrest bracket revolute pair 15 and the headrest bracket 16 are movably connected, and the headrest bracket 16 is in a cuboid arrangement.

Specifically, its structure comprises lower part frame 1, upper portion frame 2, back support 10, support frame 13, headrest support 16, form the whole of dual pole three-layer folding chair, install the seat cloth on its folding chair, its seat cloth can dismantle the installation on back support 10, make people take conveniently, make the folding chair play the antiskid effect with ground contact when expanding the use through slipmat 3, pass through the fixed screw 4 that lower part frame 1 and upper portion frame 2 set up through threaded fastener 5, make the shrink support 7 be convenient for shrink through spout 6, shrink support 7 is two settings, lower part shrink support 7 is sunken make upper portion shrink support 7 be in this recess region, can make two shrink support 7 be located same horizontal plane, reduce the shrink volume, through support fixed orifices 8 be used for adjusting the inclination of back, through back frame revolute pair 9 and support revolute pair 11 and headrest revolute pair 15, make the revolute pair structure can take closely the shrink support revolute pair 9 and support revolute pair 11 and headrest pair 15 between the joint element carries out closely fixedly through the fixed screw 4, make shrink support 7 be convenient for two setting up, lower part shrink support 7 is two setting up, lower part shrink support frame 7 is sunken in the support frame 13 is located same horizontal plane, the back support frame is realized through the expansion 16, the expansion support frame is realized through the expansion support frame 12, the demand is realized, the head support frame is realized, the seat is realized, the head support is realized through the support frame is 16, and is realized, the back support 13 is realized, the support is realized and is realized.

When the folding back frame is stored and not used, the folding back frame 1 and the upper frame 2 can be folded and combined by the folding back frame 7 along the sliding groove 6, in order to reduce the volume, the folding back frame 7 positioned below is thinner at the joint between the folding back frame 7 and is used for placing the folding back frame 7 above, so that the two folding back frames 7 are positioned on the same horizontal plane, simultaneously, when the folding back frame is not used, the back frame 10 fixed on the upper frame 2 can be lifted, the supporting frame 13 is stored in the frame storage groove 12, the back frame 10 is backwards placed on the upper frame 2 around the back frame revolute pair 9, meanwhile, the head frame 16 is placed on the back frame 10 around the head frame revolute pair 15, the volume is minimized, and the folding back frame is convenient to store and carry, the lower frames 1 and the upper frames 2 on two sides are pulled to two sides, so that the shrinkage brackets 7 of the lower frames 1 move along the sliding grooves 6, the backrest brackets 10 are lifted up around the backrest frame revolute pair 9, the supporting frames 13 stored in the bracket storage grooves 12 are taken out and fixed in the bracket fixing holes 8, four pairs of bracket fixing holes 8 are formed, a user can adjust the inclination angle of the seat according to actual conditions, meanwhile, the user can determine whether to stretch out the headrest brackets 16 according to actual conditions, and when the headrest brackets are stretched out, due to the existence of the headrest frame limiting plates 14, the headrest brackets 16 are automatically positioned at proper angles, the anti-skid pads 3 are arranged below the lower frames 1, so that the folding chair is more stable when being placed on the backrest-free chair, the whole use of the folding chair is more comfortable, the folding chair is more convenient, and the whole practicability is enhanced.

Example 2

In this embodiment, as a further improvement of embodiment 1, the seat cloth is detachably attached to the folding seat support, and the leg portion can be detached for use in order to form a back rest chair in combination with the seatback-free chair.

In summary, the folding chair can greatly reduce the occupied space by adopting the folding storage mode, is convenient to use, can be more portable by folding, greatly improves the comfort of a user by adjusting the backrest, and can effectively improve the overall practicability.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a portable folding chair of adjustable back, includes lower part frame (1) and upper portion frame (2), its characterized in that, lower part frame (1) bottom is provided with slipmat (3), lower part frame (1) and upper portion frame (2) one side surface both ends inboard all is provided with fixed screw (4), fixed screw (4) inboard is provided with threaded fastener (5), lower part frame (1) one side surface is provided with spout (6), spout (6) inboard is provided with shrink support (7), upper portion frame (2) one side surface has set gradually support fixed orifices (8) and back frame revolute pair (9), back frame revolute pair (9) inboard is provided with back support (10), back support (10) one side surface middle part inboard is provided with support revolute pair (11), support revolute pair (11) one side is provided with support storage groove (12), support frame (13) are inboard, back support (10) one end is provided with spout (6), back support (10) one end is provided with head rest (14), back support (15) are provided with head rest (15) and are set up head rest (15) on the head rest (15).

2. The portable folding chair with the adjustable backrest according to claim 1, characterized in that the lower frame (1) and the upper frame (2) are both formed by two long brackets, which are both rectangular structures.

3. The portable folding chair with the adjustable backrest according to claim 1, wherein the lower frame (1) and the anti-slip pad (3) are fixedly connected, and the lower frame (1) and the upper frame (2) are tightly combined through the fixing screw holes (4) by penetrating the threaded fasteners (5) through the fixing screw holes (4).

4. The portable folding chair with the adjustable backrest according to claim 1, wherein the lower frame (1) and the shrinkage bracket (7) are movably connected, and the shrinkage bracket (7) is arranged in two ways, and is in a cuboid structure.

5. The portable folding chair with the adjustable backrest according to claim 1, wherein the bracket fixing hole (8) is in a cuboid shape, the length and the width of the bracket fixing hole are corresponding to those of the end part of the supporting frame (13), the upper frame (2) and the backrest bracket (10) are movably connected, and the backrest bracket (10) is in a cuboid shape.

6. The portable folding chair with the adjustable backrest according to claim 1, wherein the backrest brackets (10) are arranged on two long brackets of the upper frame (2), the backrest brackets (10) and the supporting frames (13) are movably connected, and the supporting frames (13) can be placed in the bracket accommodating grooves (12) in a folding manner.

7. The portable folding chair with the adjustable backrest according to claim 1, wherein the backrest bracket (10) and the headrest bracket limiting plate (14) are fixedly connected, the backrest bracket (10) and the headrest bracket revolute pair (15) are fixedly connected, the headrest bracket revolute pair (15) and the headrest bracket (16) are movably connected, and the headrest bracket (16) is in a cuboid arrangement.