CN218898928U - Folding chair with adjustable backrest angle - Google Patents

Abstract

The utility model discloses a folding chair with an adjustable backrest angle, which comprises a chair frame, wherein a chair cloth is sleeved on the chair frame, the chair frame comprises two groups of symmetrical rod frame structures, two sides of the chair cloth are respectively sleeved on the two groups of rod frame structures, the rod frame structures comprise front leg pipes, rear leg pipes, sitting pipes, backrest pipes and armrests, the armrests are arranged at the tops of the front leg pipes and the rear leg pipes, backrest adjusting pieces are fixedly arranged at the bottoms of the armrests, the front leg pipes and the rear leg pipes are movably connected with the backrest adjusting pieces through adjusting shafts, seat pipes are movably arranged at the front leg pipes, the tail ends of the seat pipes are connected with the backrest pipes through movable connecting pieces, the tail ends of the seat pipes are movably connected with the rear leg pipes through movable connecting pieces, and the two groups of rod frame structures are fixedly connected through a plurality of detachable supporting rods.

Description

Folding chair with adjustable backrest angle

Technical Field

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

Background

When the folding chair with the adjustable pitching angle of the traditional backrest is folded and stored, the folding chair can only be folded in the front-back direction, the folded chair still occupies a storage space with a plane size, the occupied space of the chair after folding is still larger, and the folding chair is inconvenient to carry and use in outdoor camping, so that the folding chair with the adjustable pitching angle of the backrest is provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the folding chair with the adjustable backrest angle, which is easier to reduce the size of the folded chair compared with the traditional folding chair with the adjustable backrest angle which can be folded back and forth, and is easy to fold and put into a storage bag for outdoor camping and carrying.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a back angularly adjustable folding chair, includes the chair frame, the cover is established on the chair frame and is installed the chair cloth, the chair frame includes two sets of symmetrical pole frame structures, and chair cloth both sides cover are established respectively on two sets of pole frame structures, and pole frame structure includes foreleg pipe, back leg pipe, seat pipe, back pipe and handrail, the handrail is established at foreleg pipe and back leg pipe top, and the handrail bottom is fixed to be equipped with the back regulating part, foreleg pipe and back leg pipe pass through regulating axle and back regulating part swing joint, foreleg pipe movable mounting sits the pipe, seat pipe tail end passes through swing joint spare and connects back pipe, back pipe and handrail afterbody swing joint, seat pipe tail end still passes through swing joint spare and back leg pipe swing joint, and two sets of pole frame structures are fixed through a plurality of detachable vaulting pole connection.

As a preferable technical scheme of the utility model, the stay bar comprises a front lower stay bar connected with two front leg pipes, a rear lower stay bar connected with two rear leg pipes, two upper stay bars connected with two seat pipes and a backrest connecting rod connected with two backrest pipes.

As a preferable technical scheme of the utility model, the front lower stay bar and the rear lower stay bar have the same structure, the front lower stay bar comprises a support tube, reinforcing bars are symmetrically and rotatably arranged on the front lower stay bar, clamping holes are formed at the free ends of the reinforcing bars, clamping blocks for clamping the support tube are arranged on the front leg tube and the rear leg tube, and clamping nails matched with the clamping holes are arranged on the front leg tube and the rear leg tube.

As a preferable technical scheme of the utility model, one end of the upper stay bar is provided with a first plug, the other end of the upper stay bar is provided with a second plug, two ends of one sitting pipe are provided with jacks which are spliced and matched with the first plug, two ends of the other sitting pipe are provided with fixing parts, the fixing parts are transversely provided with sliding slots for sliding into the second plug, one side of each sliding slot is provided with a clamping strip which is rotatably arranged on the sitting pipe, and the clamping strips are provided with limiting grooves for limiting the second plug.

As a preferable technical scheme of the utility model, the upper ends of the clamping strips are protruded to form a pressing flat plate.

As a preferable technical scheme of the utility model, the top end of the backrest pipe is movably provided with a screw rod, and the screw rod is screwed into the backrest connecting rod to fix the backrest pipe.

As a preferable technical scheme of the utility model, a sliding groove is transversely formed in the backrest adjusting piece, the adjusting shaft is slidably arranged in the sliding groove, a plurality of upper clamping grooves are transversely distributed on the backrest adjusting piece, and the upper clamping grooves are communicated with the sliding groove and used for clamping the adjusting shaft.

As a preferable technical scheme of the utility model, one end of the movable connecting piece is fixed at the tail part of the sitting tube, the other end of the movable connecting piece is hinged with the backrest tube, the movable connecting piece is fixedly provided with a limiting shaft, the limiting shaft is hinged with the rear leg tube through a hinged slat, and the limiting shaft is abutted against the rear leg tube when the folding chair is unfolded.

As a preferable technical scheme of the utility model, a back rest is arranged at the front end of the chair cloth at the position of the back rest pipe, and the back rest is fixed on the back rest pipe through an elastic band.

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

the two groups of rod frame structures forming the chair frame sequentially pass through the upper stay bar, the front lower stay bar, the rear lower stay bar and the backrest connecting rod to be connected, the upper stay bar, the front lower stay bar, the rear lower stay bar, the backrest connecting rod and the rod frame structure are connected in a plugging manner by a first plug and a second plug, a clamping block and a clamping nail are connected in a clamping manner, and the detachable connection modes are connected by a screw rod fixing thread.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

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

FIG. 3 is a schematic view of a chair according to the present utility model in a folded state;

FIG. 4 is a first schematic view of a pole frame structure of the present utility model;

FIG. 5 is a second schematic view of the structure of the pole frame of the present utility model;

FIG. 6 is an enlarged view of FIG. 4 at A in accordance with the present utility model;

FIG. 7 is an enlarged view of FIG. 5 at B in accordance with the present utility model;

FIG. 8 is an enlarged view of FIG. 5 at C in accordance with the present utility model;

FIG. 9 is a schematic view of the structure of the front lower stay bar of the present utility model;

FIG. 10 is a schematic view of the structure of the upper stay bar of the present utility model;

fig. 11 is a schematic structural view of a backrest link according to the present utility model.

Wherein: 1. a chair frame; 2. a chair cloth; 3. a headrest; 4. a backrest tube; 5. an armrest; 6. a seat tube; 7. an upper stay bar; 8. a front lower stay; 9. a front leg tube; 10. a rear leg tube; 11. a rear lower stay; 12. a jack; 13. a backrest adjustment member; 14. a backrest link; 15. a staple; 16. a screw; 17. a clamping block; 18. a clamping hole; 19. reinforcing strips; 20. a first plug; 21. a second plug; 22. hinged laths; 23. a sliding groove; 24. an upper clamping groove; 25. an adjusting shaft; 26. clamping strips; 27. a limit groove; 28. pressing the flat plate; 29. a fixing part; 30. a sliding slot; 31. a movable connecting piece; 32. and a limiting shaft.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Referring to fig. 1-11, the utility model provides a folding chair with an adjustable backrest angle, which comprises a chair frame 1, wherein a chair cloth 2 is sleeved on the chair frame 1, the chair frame 1 comprises two groups of symmetrical rod frame structures, two sides of the chair cloth 2 are respectively sleeved on the two groups of rod frame structures, the rod frame structures comprise a front leg pipe 9, a rear leg pipe 10, a sitting pipe 6, a backrest pipe 4 and an armrest 5, the armrest 5 is arranged at the tops of the front leg pipe 9 and the rear leg pipe 10, backrest adjusting pieces 13 are fixedly arranged at the bottom of the armrest 5, the front leg pipe 9 and the rear leg pipe 10 are movably connected with the backrest adjusting pieces 13 through adjusting shafts 25, the backrest adjusting pieces 13 are used for adjusting the pitching angle of the backrest, the sitting pipe 6 is movably installed on the front leg pipe 9, the tail end of the sitting pipe 6 is connected with the backrest pipe 4 through a movable connecting piece 31, the tail of the sitting pipe 6 is movably connected with the armrest 5, the tail end of the sitting pipe 6 is movably connected with the rear leg pipe 10 through a plurality of detachable supporting rods.

Preferably, the stay includes a front lower stay 8 connecting the two front leg tubes 9, a rear lower stay 11 connecting the two rear leg tubes 10, two upper stays 7 connecting the two seat tubes 6, and a backrest link 14 connecting the two backrest tubes 4.

Preferably, the front lower stay bar 8 and the rear lower stay bar 11 have the same structure, the front lower stay bar 8 comprises a support tube, the front lower stay bar 8 is symmetrically and rotatably provided with a reinforcing bar 19, the free end of the reinforcing bar 19 is provided with a clamping hole 18, clamping blocks 17 for clamping the support tube are arranged on the front leg tube 9 and the rear leg tube 10, and clamping nails 15 matched with the clamping holes 18 are arranged on the front leg tube 9 and the rear leg tube 10; the detachable connection of the front lower stay bar 8 and the rear lower stay bar 11 is realized, and meanwhile, the connection stability is increased through the reinforcing strip 19.

Preferably, one end of the upper stay bar 7 is provided with a first plug 20, the other end of the upper stay bar 7 is provided with a second plug 21, two ends of one seat tube 6 are provided with insertion holes 12 which are in insertion fit with the first plug 20, two ends of the other seat tube 6 are provided with fixing parts 29, the fixing parts 29 are transversely provided with sliding slots 30 which are used for sliding into the second plug 21, one side of each sliding slot 30 is provided with a clamping strip 26 which is rotatably arranged on the seat tube 6, and the clamping strips 26 are provided with limiting grooves 27 for limiting the second plug 21; after the second plug 21 slides into the sliding slot 30, the clamping strip 26 is pressed down, and the second plug 21 is clamped into the limiting groove 27, so that the detachable connection of the upper stay bar 7 is realized.

Preferably, the upper ends of the clip strips 26 are raised to form a pressing plate 28; facilitating the operation of pressing and pulling up the card bar 26.

Preferably, the top end of the backrest pipe 4 is movably provided with a screw 16, and the screw 16 is screwed into the backrest connecting rod 14 to fix the backrest pipe 4; the detachable connection of the backrest pipe 4 is realized.

Preferably, a sliding groove 23 is transversely formed in the backrest adjusting member 13, an adjusting shaft 25 is slidably mounted in the sliding groove 23, a plurality of upper clamping grooves 24 are transversely distributed on the backrest adjusting member 13, and the upper clamping grooves 24 are communicated with the sliding groove 23 and used for clamping the adjusting shaft 25; the adjusting shaft 25 slides along the sliding groove 23 and then is clamped into the upper clamping groove 24, so that the adjustment of the pitching angle of the backrest can be realized.

Preferably, one end of the movable connecting piece 31 is fixed at the tail of the sitting tube 6, the other end of the movable connecting piece 31 is hinged with the backrest tube 4, a limiting shaft 32 is fixedly installed on the movable connecting piece 31, the limiting shaft 32 is hinged with the rear leg tube 10 through a hinged slat 22, the hinged slat 22 is arranged to be connected, the rear leg tube 10 can be conveniently moved when the chair is folded, the limiting shaft 32 is abutted to the rear leg tube 10 when the folding chair is unfolded, the limiting shaft 32 is arranged, and the unidirectional limiting of the rear leg tube 10 can be increased when the chair is unfolded for use.

Preferably, the back rest 3 is installed at the position of the backrest tube 4 at the front end of the seat cloth 2, the back rest 3 is fixed on the backrest tube 4 through elastic bands, and the detachable back rest 3 is arranged outside, so that the comfort level of the neck is increased when the user lies on the folding chair.

Examples:

when the chair is folded, the two armrests 5 are slightly lifted, the two backrest pipes 4 are pressed forwards from the top, meanwhile, the head of the sitting pipe 6 is folded towards the backrest pipe 4, the front leg pipe 9 is folded towards the rear leg pipe 10, meanwhile, the front leg pipe 9 and the rear leg pipe 10 are folded towards the sitting pipe 6 along the joint with the sitting pipe 6, and finally, the sitting pipe 6, the backrest pipe 4, the rear leg pipe 10, the front leg pipe 9 and the armrests 5 of the folding chair are stacked in a front-back staggered mode to complete front-back folding of the folding chair.

When the folding chair is stored and carried, the chair is folded, all the reinforcing strips 19 are pulled out of the clamping nails 15 in sequence, one ends of the front lower supporting rod 8 and the rear lower supporting rod 11 are taken down from the clamping blocks 17, the other ends of the front lower supporting rod 8 and the rear lower supporting rod 11 are taken down from the other clamping blocks 17, the clamping strips 26 are pulled up, the second plug 21 is pulled out, the upper supporting rod 7 is taken down, the screw rods 16 are screwed finally, the backrest connecting rod 14 is loosened, the backrest connecting rod is taken down, the two groups of rod frame structures are wound together by utilizing the chair cloth 2, the front, the rear, the left and the right folding of the folding chair is completed, and the folded chair is packed into a storage bag for storage and carrying.

The two groups of rod frame structures forming the chair frame 1 are sequentially connected through the upper supporting rod 7, the front lower supporting rod 8, the rear lower supporting rod 11 and the backrest connecting rod 14, the upper supporting rod 7, the front lower supporting rod 8, the rear lower supporting rod 11 and the backrest connecting rod 14 are connected with the rod frame structures in a plugging manner by adopting a first plug 20 and a second plug 21, the clamping block 17 is connected with the clamping nail 15 in a clamping manner, and the detachable connection modes of the clamping block 17 and the clamping nail 15 are connected by adopting a screw 16 fixed thread.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a back angularly adjustable folding chair, includes chair frame (1), its characterized in that: the utility model provides a chair frame (1) is gone up the cover and is established and install chair cloth (2), chair frame (1) includes two sets of symmetrical pole frame structures, and chair cloth (2) both sides cover are established respectively on two sets of pole frame structures, and pole frame structure includes preceding leg pipe (9), back leg pipe (10), seat pipe (6), back pipe (4) and handrail (5), handrail (5) are established at preceding leg pipe (9) and back leg pipe (10) top, and handrail (5) bottom is fixed to be equipped with back regulating part (13), preceding leg pipe (9) and back leg pipe (10) pass through regulating spindle (25) and back regulating part (13) swing joint, preceding leg pipe (9) movable mounting seat pipe (6), seat pipe (6) tail end is through swing joint (31) connection back pipe (4), seat pipe (6) tail end still through swing joint (31) and back leg pipe (10) swing joint, two sets of support poles of support structures can be dismantled.

2. The folding chair with an adjustable backrest angle according to claim 1, wherein: the stay bar comprises a front lower stay bar (8) connected with two front leg pipes (9), a rear lower stay bar (11) connected with two rear leg pipes (10), two upper stay bars (7) connected with two seat pipes (6) and a backrest connecting rod (14) connected with two backrest pipes (4).

3. The folding chair with an adjustable backrest angle according to claim 2, wherein: the front lower stay bar (8) and the rear lower stay bar (11) are identical in structure, the front lower stay bar (8) comprises a support tube, reinforcing bars (19) are symmetrically installed on the front lower stay bar (8) in a rotating mode, clamping holes (18) are formed in the free ends of the reinforcing bars (19), clamping blocks (17) for clamping the support tube are installed on the front leg tube (9) and the rear leg tube (10), and clamping nails (15) matched with the clamping holes (18) are arranged on the front leg tube (9) and the rear leg tube (10).

4. The folding chair with an adjustable backrest angle according to claim 2, wherein: the utility model discloses a seat pipe, including seat pipe (6), seat pipe, fixed part (29) are installed at the both ends of seat pipe (6), upper stay (7) one end is equipped with first plug (20), and the other end of upper stay (7) is equipped with second plug (21), one seat pipe (6) both ends offered with jack (12) of first plug (20) grafting matching, another seat pipe (6) both ends are installed fixed part (29), transversely have offered the slip slot (30) that are used for sliding into second plug (21) on fixed part (29), one side of slip slot (30) is equipped with card strip (26) of rotation installation on seat pipe (6), limit groove (27) of spacing second plug (21) have been seted up on card strip (26).

5. The reclining chair of claim 4, wherein: the upper ends of the clamping strips (26) are protruded to form a pressing flat plate (28).

6. The folding chair with an adjustable backrest angle according to claim 2, wherein: the top end of the backrest pipe (4) is movably provided with a screw rod (16), and the screw rod (16) is screwed into the backrest connecting rod (14) to fix the backrest pipe (4).

7. The folding chair with an adjustable backrest angle according to claim 1, wherein: the utility model discloses a backrest adjusting piece, including back adjusting piece (13), back adjusting piece (13) and adjusting shaft (25), sliding groove (23) have transversely been seted up in the back adjusting piece (13), adjusting shaft (25) slidable mounting is in sliding groove (23), transversely distributed has a plurality of draw-in grooves (24) on back adjusting piece (13), go up draw-in groove (24) and sliding groove (23) intercommunication and be used for the card to insert adjusting shaft (25).

8. The folding chair with an adjustable backrest angle according to claim 1, wherein: one end of the movable connecting piece (31) is fixed at the tail of the sitting tube (6), the other end of the movable connecting piece (31) is hinged to the backrest tube (4), a limiting shaft (32) is fixedly installed on the movable connecting piece (31), the limiting shaft (32) is hinged to the rear leg tube (10) through a hinged slat (22), and the limiting shaft (32) is abutted to the rear leg tube (10) when the folding chair is unfolded.

9. The folding chair with an adjustable backrest angle according to claim 1, wherein: the front end of the chair cloth (2) is positioned at the position of the backrest tube (4), a back rest (3) is arranged, and the back rest (3) is fixed on the backrest tube (4) through an elastic band.

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