CN217117922U

CN217117922U - Folding chair

Info

Publication number: CN217117922U
Application number: CN202220546404.0U
Authority: CN
Inventors: 黄明明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-08-05
Anticipated expiration: 2032-03-14

Abstract

The utility model relates to the technical field of furniture, indicate a folding chair especially, including back, seat, front leg, rear foot, its characterized in that: the backrest is provided with a back plate vertical bar, the back plate vertical bar is movably connected to the rear feet, one end of the seat plate is slidably connected to the middle of the backrest, the bottom of the seat plate is slidably connected with the rear feet, the front feet are rotatably connected to the edges of the seat plate, and the front feet are movably connected with the rear feet. The position of connecting on the back foot through the backplate vertical retort of back is different to the contained angle that makes between seat and the back is different, and the chair of producing more accords with the position of sitting custom, makes the comfort level better, and the chair is when opening simultaneously, has the support of preceding foot and back foot on the seat simultaneously, improves the security of chair when using.

Description

Folding chair

Technical Field

The utility model relates to the technical field of furniture, in particular to a folding chair.

Background

The folding chair is light, has a folding storage function, is convenient to move, and saves space. Originally for military use. The device is commonly used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places.

In chinese patent 202021267340.8, a folding chair is disclosed, including outer frame, outer frame inside is provided with folding groove and lower folding groove, go up folding groove with folding groove staggered position department is provided with the orientation down, go up folding groove's spacing arch, it installs the bottom through first pivot and stretches into to go up folding groove top, folding inslot and bottom surface horizontally inner frame down, the inner frame bottom is provided with interior folding groove, the seat is installed through the second pivot to interior folding groove top position.

By adopting the scheme, the outer frame bracket is used as the backrest and the supporting legs of the chair, and the front feet and the backrest are in the same plane. So that the included angle between the backrest and the seat board is inversely proportional to the horizontal distance between the front foot landing part and the foremost edge of the seat board, namely, the more the front foot landing part is leaned forward, the larger the included angle between the backrest and the seat board is. The included angle between the backrest and the seat plate is too large, so that a person can not lean against the backrest when sitting on the chair and can lean against the backrest reluctantly, and the chair can tip backwards. If the feet fall to the ground too far back, a person sits on the seat plate, and if the center of gravity is too far forward, the chair can turn over forward. Especially, when children use the medicine, certain danger is brought. Therefore, the production is difficult to moderate, the process is complex and the production cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a folding chair, the position of connecting on the back foot through the backplate vertical retort of back is different to make the contained angle between seat and the back different, the chair of producing more accords with the position of sitting custom, makes the comfort level better, and the chair is when opening simultaneously, has the support of preceding foot and back foot on the seat simultaneously, improves the security of chair when using.

In order to achieve the above object, the utility model adopts the following technical scheme: a folding chair comprises a backrest, a seat, front legs and rear legs, wherein the backrest is provided with a backboard vertical bar, the backboard vertical bar is movably connected to the rear legs, one end of the seat is slidably connected to the middle of the backrest, the bottom of the seat is slidably connected to the rear legs, front legs are rotatably connected to the edges of the seat, and the front legs are movably connected to the rear legs.

Adopt above-mentioned scheme, the position of being connected on the back foot through the backplate vertical retort that changes the back is different to make the contained angle between seat and the back different, the chair of production more accords with the position of sitting custom, makes the comfort level better, and the chair is when opening simultaneously, has the support of preceding foot and back foot on the seat simultaneously, improves the security of chair when using.

As the utility model discloses preferred, the back includes the back arm-tie, and back arm-tie both ends are equipped with the backplate vertical retort, form one between two backplate vertical retorts and accomodate the chamber, and one of backplate vertical retort is served and is equipped with a tenon, is equipped with a sliding tray at the middle part of backplate vertical retort, swing joint has in the sliding tray the seat.

Adopt above-mentioned scheme, through set up the sliding tray on the backplate vertical retort to realize that the seat can slide in the sliding tray when folding, make the seat fold to accomodate the chamber. Reducing the thickness of the folded chair.

As the utility model discloses preferred, be equipped with preceding foot mounting groove, the rotatory hole of seat on the seat, seat and preceding foot mounting groove are run through completely in the rotatory hole of seat, are equipped with the front foot in the front foot mounting groove, install big rotation axis in the seat rotation hole, preceding foot with the seat passes through big rotation axis swing joint.

As the utility model discloses it is preferred, be equipped with the boss on the both ends of rotation axis, the boss with the sliding tray adaptation.

As the utility model discloses it is preferred, the bottom of seat still is equipped with two back foot mounting grooves, the both sides of back foot mounting groove are equipped with "protruding" font back foot sliding tray, be equipped with the back foot tenon on the back foot, the back foot tenon is through little rotation axis movable mounting in the back foot mounting groove.

As the utility model discloses preferred, the middle part of back foot still is equipped with fourth of the twelve earthly branches groove, fourth of the twelve earthly branches groove with the tenon adaptation, still be equipped with the connecting hole on the back foot, the connecting hole is located fourth of the twelve earthly branches groove with between the back foot tenon, the back foot with through well rotation axis swing joint between the preceding foot. The tenon is provided with a mounting hole, and the backrest is movably connected with the rear foot through a rotating rod.

As the utility model discloses preferred, the middle part of back of the body arm-tie and preceding foot all is equipped with the draw-in groove.

The beneficial effects of the utility model reside in that: 1. the positions of the vertical bars of the back plate of the backrest, which are connected to the rear feet, are different, so that the included angles between the seat plate and the backrest are different, and the applied sitting posture comfort level is higher; 2. meanwhile, when the chair is opened, the seat plate is simultaneously supported by the front legs and the rear legs, so that the safety of the chair is higher when the chair is used.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

The reference numbers illustrate: 1. a backrest; 2. a seat plate; 3. a forefoot; 4. a rear leg; 5. a back pulling plate; 6. a back plate vertical bar; 7. a receiving cavity; 8. a tenon; 9. mounting holes; 10. a sliding groove; 11. mounting grooves; 12. a forefoot mounting slot; 13. seat plate rotation holes; 14. a large rotation axis; 15. a boss; 16. a forefoot swivel aperture; 17. a rear foot mounting groove; 18. a rear foot sliding groove; 19. a rear foot tenon; 20. mortise slot; 21. rotating the hole; 22. a card slot; 23. a small rotating shaft; 24. a middle rotating shaft; 25. rotating the rod; 26. and connecting the holes.

Detailed Description

The technical solution in the examples of the present invention will be clearly and completely described below with reference to the accompanying drawings in the examples of the present invention.

Please refer to fig. 1-2, the utility model provides a folding chair, including back 1, seat 2, preceding foot 3, back foot 4, back 1 includes back arm-tie 5, and back arm-tie 5 both ends are equipped with backplate vertical retort 6, form one between two backplate vertical retort 6 and accomodate chamber 7, one of backplate vertical retort 6 is served and is equipped with a tenon 8, sets up a mounting hole 9 on the tenon 8, is equipped with a sliding tray 10 at the middle part of backplate vertical retort 6. The sliding groove 10 is provided with a mounting groove 11, and the mounting groove 11 is close to the back pull plate 5.

Seat 2 is last still to be equipped with preceding foot mounting groove 12, seat rotation hole 13, and seat rotation hole 13 runs through seat 2 and preceding foot mounting groove 12 completely in, is equipped with preceding foot 3 in preceding foot mounting groove 12, installs big rotation axis 14 in the seat rotation hole 13, is equipped with boss 15 on the both ends of big rotation axis 14. The boss 15 is matched with the sliding groove 10, and a front foot rotating hole 16 is arranged on the front foot 3. During installation, the front foot 3 is placed in the front foot installation groove 12, the large rotating shaft 14 penetrates through the seat plate rotating hole 13 and then penetrates through the front foot rotating hole 16 to combine the front foot 3 on the seat plate 2, the large rotating shaft 14 is ensured to avoid the rear foot installation groove 17, the boss 15 is placed in the installation groove 11, the boss 15 enters the sliding groove 10 through the transition of the installation groove 11, and the seat plate, the front foot and the backrest are assembled.

Two rear foot mounting grooves 17 are arranged at the bottom of the seat plate 2, and two sides of the rear foot mounting grooves 17 are provided with 'convex' rear foot sliding grooves 18. The rear foot 4 is provided with a rear foot tenon 19. The rear foot tenon 19 is provided with a small rotating shaft 23, the rear foot tenon 19 is arranged in the rear foot mounting groove 17, during installation, the small rotating shaft 23 is arranged on the rear foot tenon 19, and the small rotating shaft 23 is arranged in the rear foot mounting groove 17 along the rear foot sliding groove 18 from the rear part of the seat plate 2, so that the connection between the seat plate 2 and the rear foot 4 is realized.

The middle part of the rear foot 4 is also provided with a mortise slot 20, and the mortise slot 20 is matched with the tenon 8. During installation, the tenon 8 on the vertical bar 6 of the backboard is installed in the mortise slot 20, and the backrest 1 and the rear foot 4 are connected through the rotating rod 25. The rear foot 4 is also provided with a rotating hole 21, and the rotating hole 21 is positioned between the mortise slot 20 and the rear foot tenon 19. The middle part of the front foot 3 is also provided with a rotating hole 21, and the front foot and the rear foot are movably connected through the rotating hole 21 by a middle rotating shaft 24.

During installation, the seat plate and the front foot are combined through the large rotating shaft, the rear foot is installed in a rear foot installation groove in the bottom of the seat plate through the small rotating shaft, and the rear foot and the front foot are connected through the middle rotating shaft. And then the boss is arranged in the sliding groove of the vertical bar of the back plate, and the tenon on the vertical bar of the back plate is arranged in the mortise groove of the rear foot.

Referring to fig. 1, the middle portions of the back pulling plate 5 and the front leg 3 are respectively provided with a locking groove 22, and the folded chair is used for positioning when being placed at the bottom of a sofa or at the bottom of a dining table through the design of the locking grooves.

The utility model discloses when using, when the effort was used in the front portion of seat, the seat moved forward, and the back foot moves backward, and when the seat moved forward, the preceding foot also can be followed the seat and moved together to make seat, preceding foot and back foot open simultaneously, otherwise, just fold the chair.

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "inner", "front", "center", "both ends", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and other persons should fall within the protection scope defined by the claims of the present invention to various modifications and improvements made by the technical solution of the present invention without departing from the design spirit of the present invention.

Claims

1. The utility model provides a folding chair, includes back, seat, front foot, back foot, its characterized in that: the backrest is provided with a back plate vertical bar, the back plate vertical bar is movably connected to the rear feet, one end of the seat plate is slidably connected to the middle of the backrest, the bottom of the seat plate is slidably connected with the rear feet, the front feet are rotatably connected to the edges of the seat plate, and the front feet are movably connected with the rear feet.

2. The folding chair of claim 1, wherein: the backrest comprises a back pull plate, back plate vertical bars are arranged at two ends of the back pull plate, a containing cavity is formed between the back plate vertical bars, a tenon is arranged at one end of each back plate vertical bar, a sliding groove is formed in the middle of each back plate vertical bar, and the seat plate is movably connected in the sliding groove.

3. The folding chair of claim 2, wherein: the seat plate is provided with a front foot mounting groove and a seat plate rotating hole, the seat plate rotating hole completely penetrates through the seat plate and the front foot mounting groove, the front foot is arranged in the front foot mounting groove, a large rotating shaft is mounted in the seat plate rotating hole, and the front foot is movably connected with the seat plate through the large rotating shaft.

4. The folding chair of claim 3, wherein: bosses are arranged at two ends of the large rotating shaft and are matched with the sliding grooves.

5. The folding chair of claim 1, wherein: the bottom of seat still is equipped with two back foot mounting grooves, the both sides of back foot mounting groove are equipped with the back foot sliding tray, be equipped with the back foot tenon on the back foot, the back foot tenon through little rotation axis movable mounting in the back foot mounting groove.

6. The folding chair of claim 5, wherein: the middle part of the rear foot is also provided with a mortise slot, the mortise slot is matched with the tenon, the rear foot is also provided with a connecting hole, the connecting hole is positioned between the mortise slot and the tenon of the rear foot, and the rear foot is movably connected with the front foot through a middle rotating shaft; the tenon is provided with a mounting hole, and the backrest and the rear foot are movably connected through the connecting hole and the mounting hole by a rotating rod.

7. The folding chair of claim 2, wherein: the middle parts of the back pulling plate and the front foot are provided with clamping grooves.