CN219374193U

CN219374193U - Three-folding chair

Info

Publication number: CN219374193U
Application number: CN202320199220.6U
Authority: CN
Inventors: 朱浙奎
Original assignee: Yongkang Dajiang Leisure Products Co ltd
Current assignee: Yongkang Dajiang Leisure Products Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-07-21
Anticipated expiration: 2033-02-13

Abstract

The utility model belongs to the technical field of folding chairs, and particularly relates to a three-fold chair, which comprises a support frame, wherein a backrest and support legs are movably arranged on the support frame, the backrest and the support legs can be respectively folded towards the support frame, the support legs comprise front legs and rear legs which are respectively connected with the support frame in a rotating way, the rear legs extend upwards the support frame and are connected with the backrest in a rotating way, grab bars are rotatably arranged on two sides of the backrest, the front legs extend upwards the support frame and are rotatably connected with the grab bars, limit parts are arranged on the front legs or the rear legs, the limit parts are abutted against the support frame and enable the front legs or the rear legs to be relatively fixed with the support frame.

Description

Three-folding chair

Technical Field

The utility model belongs to the technical field of folding chairs, in particular to a three-folding chair.

Background

The folding chair is a portable chair with a stackable function, which is convenient to carry and saves space. The system is commonly used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places.

The existing folding chairs can be integrally linked, so that a user can conveniently and rapidly unfold or fold the folding chair, the novel folding leisure chair comprises armrests, bottom supporting rods, chair back supporting rods, front supporting rods, rear supporting rods and a sleeve cloth, wherein two armrests are arranged, connecting tooth plates are fixed at the lower ends of the left sides of the armrests, the top ends of the front supporting rods are hinged with the top ends of the rear supporting rods, the hinging positions of the front supporting rods are buckled on the connecting tooth plates, the left ends of the front supporting rods are hinged with the bottom supporting rods, metal connecting pieces in an L-shaped structure are fixed at the right ends of the bottom supporting rods, the right ends of the rear supporting rods are hinged with metal strip rods, the other ends of the metal strip rods are rotatably connected with shafts, the other ends of the shafts penetrate through the metal connecting pieces and the rear supporting rods and are rotatably connected with the metal connecting pieces and the rear supporting rods, the bottom ends of the chair back supporting rods are hinged with the metal connecting pieces, and the right sides of the armrests are hinged to the middle positions of the right sides of the support rods, and the sleeve cloth is sleeved on the chair back supporting rods and the bottom supporting rods; the utility model has the characteristics of simple structure, convenient and quick folding and capability of quickly adjusting the angle of the chair back.

But in this structure the back bracing piece extends forward and rotates with preceding support frame to be connected, so back bracing piece is longer in most to lead to back bracing piece length longer, folding back folding chair's height is higher, and this structure axis 11 can support and lean on back bracing piece middle part, after long-time use, and back bracing piece is crooked even the rupture easily, thereby leads to folding leisure chair's life weak point.

Disclosure of Invention

In order to overcome the defects and the existing problems in the prior art, the utility model provides the three-fold chair which is small in size and long in service life after being folded.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a three-fold chair, includes the support frame, and the activity is provided with back and supporting leg on the support frame, and back and supporting leg can fold to the support frame respectively, the supporting leg is including the preceding leg and the back leg of rotating with the support frame respectively to be connected, and the back leg extends to the support frame top and rotates to be connected with the back, and the back both sides rotate and are provided with the grab rail, and the preceding leg extends to the support frame top and rotates to be connected with the grab rail, is provided with spacing portion on preceding leg or the back leg, and spacing portion supports and leans on the support frame and makes preceding leg or back leg and support frame relatively fixed.

After adopting this structure, the back leg rotates with the back to be connected, is favorable to reducing the volume of folding back three-fold chair, makes things convenient for three-fold chair's storage transportation, and in this structure the articulated position of back leg and back and the articulated position of back leg and support frame are nearer, and the back leg is difficult for crooked even rupture in the use, is favorable to prolonging three-fold chair's life.

The utility model is further provided with: the support frame is including dismantling the support main part and the installation pole that set up, and the support main part is the U type wholly, and U type support main part includes both sides pole and sets up the sill bar between the both sides pole, is provided with first supporting cloth between the both sides pole, is provided with the second supporting cloth between sill bar and the installation pole.

After the structure is adopted, the first supporting cloth and the second supporting cloth are arranged to be favorable for improving the three-folding chair to support heavier objects, the supporting cloth on the three-folding chair is prevented from being accidentally damaged, the detachable support main body and the mounting rod are convenient for the disassembly and the assembly of the first supporting cloth and the second supporting cloth, and the production and the processing of the three-folding chair are convenient.

The utility model is further provided with: the second supporting cloth is connected with a third supporting cloth, one end of the third supporting cloth is connected with the second supporting cloth, and the other end of the third supporting cloth is connected with the backrest.

The utility model is further provided with: the second supporting cloth is arranged above the first supporting cloth, and the third supporting cloth pulls the second supporting cloth and enables the second supporting cloth to be separated from the first supporting cloth.

After the structure is adopted, the third supporting cloth can pull the second supporting cloth when the three-folding chair is unfolded, so that the second supporting cloth and the third supporting cloth are straightened, the second supporting cloth and the third supporting cloth can relax when the three-folding chair is folded, the second supporting cloth and the third supporting cloth are prevented from being damaged due to long-time straightening, and the service lives of the second supporting cloth and the third supporting cloth are prolonged; because third supporting cloth drive second supporting cloth breaks away from with first supporting cloth, when the user is lighter on the three-fold chair, only the second supporting cloth supports the user, and when the user is heavier, first supporting cloth supports the user with the second supporting cloth jointly, not only can avoid three-fold chair damage, still is favorable to improving three-fold chair's travelling comfort.

The utility model is further provided with: the backrest is rotationally connected with the side rods, the side rods are provided with supporting parts, and the backrest is propped against the supporting parts when the three-folding chair is unfolded.

The utility model is further provided with: the sleeve part is sleeved on the side rod, the limiting piece is detachably arranged on the side rod, the sleeve part is arranged between the limiting piece and the front leg, and the supporting part is arranged on the limiting piece.

After the structure is adopted, the arrangement of the supporting part is beneficial to improving the stability of the backrest and avoiding the backrest from turning back in the use process; the setting of locating part is favorable to avoiding back damage support frame, and through locating part and the motion scope of the first supporting cloth of foreleg restriction, avoids the free movement of first supporting cloth on the supporting legs in the use.

The utility model is further provided with: the backrest is rotatably provided with a reinforcing rod, the reinforcing rod is rotatably connected with the front leg through a hinge shaft, the front leg is rotatably connected with the support frame through the hinge shaft, the front leg, the grab rail, the backrest and the reinforcing rod form a four-bar mechanism, and the support frame, the rear leg, the backrest and the reinforcing rod form the four-bar mechanism.

After the structure is adopted, the reinforcing rod is arranged to be favorable for improving the structural strength of the three-folding chair and prolonging the service life of the three-folding chair.

Drawings

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

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a folded state diagram of the present utility model;

FIG. 4 is a schematic view of the structure of the support frame according to the present utility model;

FIG. 5 is a schematic view of the structure of the rear leg of the present utility model;

fig. 6 is a schematic structural view of a connection structure of the second support cloth and the third support cloth in the present utility model.

In the figure: 1-a supporting frame; 11-a stent body; 12-mounting a rod; 13-side bars; 14-a bottom bar; 15-limiting pieces; 2-a backrest; 3-front legs; 4-rear legs; 41-a limiting part; 5-a grab bar; 6-reinforcing rods; 7-a first support cloth; 71-a sleeve portion; 8-a second support cloth; 81-a first connection; 82-a second connection; 9-a third support cloth; 91-third connection.

Detailed Description

The present utility model is further described below with reference to the drawings and specific embodiments for the purpose of facilitating understanding by those skilled in the art.

As shown in fig. 1 to 6, a three-folded chair comprises a support frame 1, a backrest 2 and support legs are movably arranged on the support frame 1, the backrest 2 and the support legs can be folded towards the support frame 1 respectively, the support legs comprise a front leg 3 and a rear leg 4 which are respectively connected with the support frame 1 in a rotating way, the rear leg 4 extends towards the upper part of the support frame 1 and is connected with the backrest 2 in a rotating way, a handrail rod 5 is rotatably arranged on two sides of the backrest 2, the front leg 3 extends towards the upper part of the support frame 1 and is connected with the handrail rod 5 in a rotating way, a limiting part 41 is arranged on the front leg 3 or the rear leg 4, the limiting part 41 is abutted against the support frame 1 and enables the front leg 3 or the rear leg 4 to be fixed relative to the support frame 1, the rear leg 4 is connected with the backrest 2 in a rotating way in the structure, the length of the three-folded chair is reduced, the size of the three-folded chair is reduced, the transportation of the three-folded chair is facilitated, the hinge position of the rear leg 4 and the backrest 2 and the hinge position of the three-folded chair are relatively close, the front leg 4 and the hinge position of the support frame 1 are easily bent, and the three-folded chair is not easy to extend in the service life of the three-folded chair.

According to the utility model, the backrest 2 is rotatably provided with the reinforcing rod 6, the reinforcing rod 6 is rotatably connected with the front leg 3 through the hinge shaft, the front leg 3 is rotatably connected with the support frame 1 through the hinge shaft, the front leg 3, the grab rail 5, the backrest 2 and the reinforcing rod 6 form a four-bar mechanism, the support frame 1, the rear leg 4, the backrest 2 and the reinforcing rod 6 form the four-bar mechanism, and the reinforcing rod 6 is beneficial to improving the structural strength of the three-folding chair and prolonging the service life of the three-folding chair.

The support frame 1 is including dismantling the support main part 11 and the installation pole 12 that set up, the whole U type that is of support main part 11, U type support main part 11 includes both sides pole 13 and sets up the sill bar 14 between both sides pole 13, be provided with first backing cloth 7 between the both sides pole 13, be provided with second backing cloth 8 between sill bar 14 and the installation pole 12, be favorable to improving the heavy object of three-fold chair support with being provided with of second backing cloth 8, avoid the unexpected damage of backing cloth on the three-fold chair, the dismantlement support main part 11 and the installation pole 12 of detachable are convenient for the dismantlement installation of first backing cloth 7 and second backing cloth 8, make things convenient for the production and processing of three-fold chair.

In this embodiment, the second supporting cloth 8 is connected with the third supporting cloth 9, one end of the third supporting cloth 9 is connected with the second supporting cloth 8, the other end of the third supporting cloth 9 is connected with the backrest 2, the third supporting cloth 9 can pull the second supporting cloth 8 when the three-fold chair is unfolded, so that the second supporting cloth 8 and the third supporting cloth 9 are straightened, the second supporting cloth 8 and the third supporting cloth 9 can relax when the three-fold chair is folded, the second supporting cloth 8 and the third supporting cloth 9 are prevented from being damaged due to long-time straightening of the second supporting cloth 8 and the third supporting cloth 9, and the service life of the second supporting cloth 8 and the third supporting cloth 9 is prolonged.

Preferably, the second supporting cloth 8 is arranged above the first supporting cloth 7, and the third supporting cloth 9 pulls the second supporting cloth 8 and separates the second supporting cloth 8 from the first supporting cloth 7, because the third supporting cloth 9 drives the second supporting cloth 8 to separate from the first supporting cloth 7, when the user is lighter on the three-folding chair, only the second supporting cloth 8 supports the user, and when the user is heavier, the first supporting cloth 7 and the second supporting cloth 8 support the user together, so that the damage of the three-folding chair can be avoided, and the comfort of the three-folding chair is improved.

The backrest 2 is rotationally connected with the side rods 13, the side rods 13 are provided with supporting parts, when the three-fold chair is unfolded, the backrest 2 is propped against the supporting parts, and the supporting parts are arranged to be favorable for improving the stability of the backrest 2, so that the backrest 2 is prevented from being folded backwards in the use process.

According to the utility model, the sleeve parts 71 are arranged at two ends of the first supporting cloth 7, the sleeve parts 71 are sleeved on the side rods 13, the side rods 13 are detachably provided with the limiting pieces 15, the sleeve parts 71 are arranged between the limiting pieces 15 and the front legs 3, the supporting parts are arranged at the upper ends of the limiting pieces 15, the arrangement of the limiting pieces 15 is beneficial to preventing the backrest 2 from damaging the supporting frame 1, and the limiting pieces 15 and the front legs 3 limit the movement range of the first supporting cloth 7, so that the first supporting cloth 7 can be prevented from freely moving on the supporting legs in the use process.

In this embodiment, the front and rear ends of the second support cloth 8 are respectively provided with a first connecting portion 81 and a second connecting portion 82, the first connecting portion 81 and the second connecting portion 82 are respectively connected with the bottom rod 14 and the mounting rod 12, the connection position of the third support cloth 9 and the second support cloth 8 is located between the first connecting portion 81 and the second connecting portion 82, one end of the third support cloth 9 is connected to the second support cloth 8, and the other end of the third support cloth 9 is provided with a third connecting portion 91 connected with the upper end of the backrest 2.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a three-fold chair, includes support frame (1), and the activity is provided with back (2) and supporting leg on support frame (1), and back (2) and supporting leg can be respectively to support frame (1) folding, its characterized in that: the supporting leg comprises a front leg (3) and a rear leg (4) which are respectively connected with the supporting frame (1) in a rotating mode, the rear leg (4) extends to the upper portion of the supporting frame (1) and is connected with the backrest (2) in a rotating mode, a grab rail (5) is arranged on two sides of the backrest (2) in a rotating mode, the front leg (3) extends to the upper portion of the supporting frame (1) and is connected with the grab rail (5) in a rotating mode, a limiting portion (41) is arranged on the front leg (3) or the rear leg (4), and the limiting portion (41) abuts against the supporting frame (1) and enables the front leg (3) or the rear leg (4) to be fixed with the supporting frame (1) relatively.

2. A three-fold chair according to claim 1, wherein: the support frame (1) is including dismantling support main part (11) and installation pole (12) that set up, and support main part (11) are the U type wholly, and U type support main part (11) are including both sides pole (13) and bottom rod (14) of setting between both sides pole (13), are provided with first supporting cloth (7) between both sides pole (13), are provided with second supporting cloth (8) between bottom rod (14) and installation pole (12).

3. A three-fold chair according to claim 2, wherein: the second supporting cloth (8) is connected with a third supporting cloth (9), one end of the third supporting cloth (9) is connected with the second supporting cloth (8), and the other end of the third supporting cloth (9) is connected with the backrest (2).

4. A three-fold chair according to claim 3, wherein: the second supporting cloth (8) is arranged above the first supporting cloth (7), and the third supporting cloth (9) pulls the second supporting cloth (8) and enables the second supporting cloth (8) to be separated from the first supporting cloth (7).

5. A three-fold chair according to claim 2 or 3 or 4, wherein: the backrest (2) is rotationally connected with the side rods (13), the side rods (13) are provided with supporting parts, and the backrest (2) is abutted against the supporting parts when the three-fold chair is unfolded.

6. A three-fold chair according to claim 5, wherein: the utility model discloses a support cloth, including first supporting cloth (7), sleeve portion (71) are provided with at first supporting cloth (7) both ends, sleeve portion (71) cover is established on side lever (13), and can dismantle on side lever (13) and be provided with locating part (15), sleeve portion (71) set up between locating part (15) and foreleg (3), and supporting part sets up on locating part (15).

7. A three-fold chair according to claim 1 or 2 or 3 or 4 or 6, wherein: the utility model discloses a four-bar mechanism is formed to back (2), back (2) and stiffener (6), back (1), back (4), back (2) and stiffener (6), back (2) are provided with stiffener (6) on back (2), and stiffener (6) are connected through articulated shaft and front leg (3) rotation, and front leg (3) are connected through articulated shaft and support frame (1) rotation, and four-bar mechanism is formed to front leg (3), grab rail (5), back (2) and stiffener (6).