CN212661453U

CN212661453U - Folding chair

Info

Publication number: CN212661453U
Application number: CN202021840652.3U
Authority: CN
Inventors: 周晓峰
Original assignee: Foshan Shijing Tourism Products Co ltd
Current assignee: Foshan Shijing Tourism Products Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-03-09
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a folding chair, include: the seat board, the backrest board, the handrail, the hinge piece, the connecting rod, the first supporting leg and the second supporting leg; one end of the armrest is hinged with the backrest plate, and the other end of the armrest is hinged with the first supporting foot; the middle part of the first supporting leg is hinged with the seat plate; one end of the hinged element is hinged with the backrest plate, the other end of the hinged element is provided with the second supporting leg, and the middle part of the hinged element is hinged with the seat plate; one end of the connecting rod is hinged with the second supporting leg, and the other end of the connecting rod is hinged with the upper part of the first supporting leg; the utility model discloses not only the cost is lower, and folding back volume is less, and it is few to take up an area of the space, conveniently carries, has higher stability and security.

Description

Folding chair

Technical Field

The utility model relates to the technical field of foldable chairs, in particular to a foldable chair.

Background

The folding chair has the advantages of portability and foldability, and is commonly used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places; the folding chair is widely used by people, so that the folding chair is further developed, and the structure of the folding chair is diversified; however, the folding chairs on the market are simple in function, people can only sit and lean after the folding chairs are unfolded, and a part of the folding chairs can lie down after being unfolded appear on the market.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks, an object of the present invention is to provide a folding chair, which can be adjusted to lie down when opened, and has high solution cost, large volume after being folded, and inconvenient carrying.

To achieve the purpose, the utility model adopts the following technical proposal:

a folding chair, comprising: the seat board, the backrest board, the handrail, the hinge piece, the connecting rod, the first supporting leg and the second supporting leg; one end of the armrest is hinged with the backrest plate, and the other end of the armrest is hinged with the first supporting foot; the middle part of the first supporting leg is hinged with the seat plate; one end of the hinged element is hinged with the backrest plate, the other end of the hinged element is provided with the second supporting leg, and the middle part of the hinged element is hinged with the seat plate; one end of the connecting rod is hinged with the second supporting leg, and the other end of the connecting rod is hinged with the upper part of the first supporting leg.

Preferably, the hinge comprises a first hinge section, a second hinge section and a third hinge section; the first hinge section and the third hinge section are arranged in parallel; two ends of the second hinge section are respectively connected with the first hinge section and the third hinge section; the first hinge section is hinged to the backrest plate, the second hinge section is hinged to the seat plate, and the third hinge section is connected with the second supporting legs.

Preferably, the armrest is provided with an adjusting plate, the adjusting plate is provided with an adjusting groove, and the adjusting groove comprises a plurality of slope grooves and a sliding groove; the sliding groove is arranged along the length direction of the handrail; the slope grooves are arranged in the sliding grooves along the length direction of the sliding grooves; one end of the first supporting leg is provided with a hinged shaft which is hinged in the adjusting groove.

Preferably, the first supporting leg is provided with a limiting rod.

Preferably, one end of the seat plate is provided with a third supporting foot.

Preferably, the third supporting foot is obliquely arranged at the tail end of the seat plate.

Preferably, the included angle between the slope groove and the sliding groove is 40-50 degrees.

Preferably, a head leaning plate is arranged at one end of the back leaning plate, and the head leaning plate is rotatably connected with the back leaning plate.

Preferably, the backrest plate is provided with a connecting piece, the connecting piece is provided with a rotating shaft, the backrest plate is provided with a rotating slotted hole, and the rotating shaft is limited and can be rotatably arranged in the rotating slotted hole.

Preferably, the head plate is further provided with a long groove, and the long groove is communicated with the rotating groove hole.

The utility model has the advantages that:

the utility model provides a folding chair according to above-mentioned content, the seat with transmission between the back board passes through the articulated elements with the connecting rod carries out the transmission to make seat and back board be close to each other when folding and accomplish folding, not only the cost is lower, and folding back volume is less, and it is few to take up an area of the space, conveniently carries, is equipped with the third supporting legs more and improves folding chair's stability, is equipped with the gag lever post improves folding chair's security.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is an enlarged schematic view of a connector according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of an adjustment plate according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of a hinge according to an embodiment of the present invention.

Wherein: the seat plate 1, the backrest plate 2, the connecting piece 21, the armrest 3, the hinge piece 4, the first hinge section 41, the second hinge section 42, the third hinge section 43, the connecting rod 5, the first supporting foot 6, the second supporting foot 7, the adjusting plate 8, the slope groove 81, the sliding groove 82, the limiting rod 9, the third supporting foot 11, the headrest plate 12, the rotating groove hole 121 and the strip groove 122.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, a folding chair includes: the seat board 1, the backrest board 2, the handrail 3, the hinge 4, the connecting rod 5, the first supporting leg 6 and the second supporting leg 7; one end of the armrest 3 is hinged with the backrest plate 2, and the other end of the armrest is hinged with the first supporting leg 6; the middle part of the first supporting leg 6 is hinged with the seat plate 1; one end of the hinged element 4 is hinged with the backrest plate 2, the other end of the hinged element is provided with the second supporting leg 7, and the middle part of the hinged element 4 is hinged with the seat plate 1; one end of the connecting rod 5 is hinged with the second supporting leg 7, and the other end is hinged with the upper part of the first supporting leg 6.

Specifically, the working principle is as follows: when the folding chair is unfolded and needs to be folded, the backrest rod rotates around the hinge point of the backrest rod and the hinge element 4, so that the backrest plate 2 and the seat plate 1 are close to each other, at the moment, the backrest plate 2 rotates to drive one end of the backrest plate and one end of the hinge element 4 to move backwards, since the middle portion of the hinge member 4 is hinged to the seat plate 1, the other end of the hinge plate moves forward, so that the second supporting leg 7 is folded, and simultaneously the movement of the second supporting leg 7 pushes the first supporting leg 6 to rotate around the hinge point of the first supporting leg and the seat plate 1, so that the first supporting legs 6 are folded, and when the back board 2 is closely attached to the seat board 1, the first supporting leg 6 and the second supporting leg 7 are simultaneously attached to the seat plate 1, so that the folding of the folding chair is completed, the folding chair is convenient to carry, and the space is saved.

Further, in the present embodiment, the hinge 4 includes a first hinge segment 41, a second hinge segment 42 and a third hinge segment 43; the first hinge section 41 and the third hinge section 43 are arranged in parallel; the two ends of the second hinge section 42 are respectively connected with the first hinge section 41 and the third hinge section 43; the first hinge segment 41 is hinged to the backrest panel 2, the second hinge segment 42 is hinged to the seat panel 1, and the third hinge segment 43 is connected to the second supporting foot 7.

Specifically, the included angle between the second hinge section 42 and the first hinge section 41 and the included angle between the third hinge section 43 are 110 to 130 degrees; the transmission between the seat plate 1 and the back plate 2 is through the articulated elements 4 with the connecting rod 5 transmits, the first articulated section 41 is articulated with the back plate 2, when the back plate 2 rotates around the articulated point of the armrest 3, the first articulated section 41 rotates around the articulated point of the seat plate 1, so as to drive the third articulated section 43 to rotate reversely, the third articulated section 43 is connected with the second supporting leg 7, therefore, the third articulated section 43 drives the second supporting leg 7 to fold, meanwhile, the second supporting leg 7 drives the connecting rod 5, the connecting rod 5 pushes the upper part of the first supporting leg 6, so that the first supporting leg 6 rotates around the articulated point of the seat plate 1, so that the first supporting leg 6 folds, and the structure is simple and the transmission is stable.

Further, in the present embodiment, the armrest 3 is provided with an adjusting plate 8, the adjusting plate 8 is provided with an adjusting groove, and the adjusting groove includes a plurality of slope grooves 81 and a sliding groove 82; the slide groove 82 is provided along the longitudinal direction of the armrest 3; the inclined grooves 81 are arranged in the sliding grooves 82 along the length direction of the sliding grooves 82; one end of the first supporting leg 6 is provided with a hinge shaft which is hinged in the adjusting groove.

Concretely, through the articulated shaft is through sliding chute 82 slides and sets up in the inclination groove 81 of difference, thereby adjust handrail 3 with the contained angle of first supporting legs 6, and then adjust back board 2 with the contained angle of seat 1 makes back board 2 can adjust according to the different demands of people's seat back inclination on the folding chair, thereby improves the comfort level of folding chair.

Further, in this embodiment, the first supporting leg 6 is provided with a limiting rod 9.

Specifically, gag lever post 9 set up in the middle part of first supporting leg 6 and be located the below of seat 1 works as back board 2 with when the contained angle of seat 1 is too big, gag lever post 9 will withstand the lower extreme of seat 1 makes first supporting leg 6 can't rotate, thereby makes back board 2 with the contained angle of seat 1 can't be opened greatly, thereby prevents back board 2 with the contained angle of seat 1 is too big leads to the folding chair unbalance and emptys, causes the injury to the user, improves folding chair's security.

Further, in this embodiment, one end of the seat plate 1 is provided with a third supporting foot 11.

Specifically, the rear end of the seat plate 1 is further provided with the third supporting leg 11, and the first supporting leg 6 and the third supporting leg 11 are matched to keep the stability of the folding chair, so that the folding chair is prevented from toppling over.

Further, in this embodiment, the third supporting leg 11 is obliquely disposed at the end of the seat plate 1.

Specifically, third supporting legs 11 with the slope contained angle of seat 1 sets up to 15, and when the folding chair opened, seat 1 still has certain distance liftoff, shortens the length of third supporting legs 11 through setting up this angle, guarantees the stability of folding chair structure when opening, can save the occupation of land space of folding chair when folding chair is folded simultaneously.

Further, in this embodiment, an included angle between the inclined groove 81 and the sliding groove 82 is between 40 ° and 50 °.

Specifically, in the present embodiment, in order to match the inclination of the back plate 2, the included angle between the inclined groove 81 and the sliding groove 82 should be set to be 40 ° to 50 °, and preferably 45 °, so that the back plate 2 can keep the inclination angle thereof stable.

Furthermore, in the present embodiment, a head rest plate 12 is disposed at one end of the back rest plate 2, and the head rest plate 12 is rotatably connected to the back rest plate 2.

Specifically, the head board 12 of leaning on can supply the user's of folding chair head to rely on, improves user's comfort level, just lean on head board 12 with back board 2 is rotatable, when need not lean on head board 12 or folding chair needs fold up, can be through rotating lean on head board 12 right lean on head board 12 to fold, save folding chair's occupation of land space when folding chair folds up.

Further, in this embodiment, the backrest plate 2 is provided with a connecting member 21, the connecting member 21 is provided with a rotating shaft, the backrest plate 12 is provided with a rotating slot 121, and the rotating shaft is limited and rotatably disposed in the rotating slot 121.

Specifically, in this embodiment, the head board 12 is hinged to the rotation slot 121 through the rotation shaft and connected to the connecting member 21, and the rotation shaft and the rotation slot 121 may be fixed and rotated by a bolt to lock the rotation of the head board 12.

Further, in this embodiment, the head plate 12 is further provided with a long groove 122, and the long groove 122 is communicated with the rotation groove hole 121.

Specifically, in this embodiment, the rotating shaft is disposed in the elongated groove 122, so that the rotating axis of the head rest board 12 is located in the elongated groove 122, both ends of the rotating point of the head rest board 12 are closely attached to the back rest board 2, and the head rest board 12 cannot rotate, thereby achieving the purpose of locking the rotation of the head rest board 12.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A folding chair, comprising: the seat board, the backrest board, the handrail, the hinge piece, the connecting rod, the first supporting leg and the second supporting leg; one end of the armrest is hinged with the backrest plate, and the other end of the armrest is hinged with the first supporting foot; the middle part of the first supporting leg is hinged with the seat plate; one end of the hinged element is hinged with the backrest plate, the other end of the hinged element is provided with the second supporting leg, and the middle part of the hinged element is hinged with the seat plate; one end of the connecting rod is hinged with the second supporting leg, and the other end of the connecting rod is hinged with the upper part of the first supporting leg.

2. A folding chair as claimed in claim 1, wherein: the hinge comprises a first hinge segment, a second hinge segment and a third hinge segment; the first hinge section and the third hinge section are arranged in parallel; two ends of the second hinge section are respectively connected with the first hinge section and the third hinge section; the first hinge section is hinged to the backrest plate, the second hinge section is hinged to the seat plate, and the third hinge section is connected with the second supporting legs.

3. A folding chair as claimed in claim 1, wherein: the handrail is provided with an adjusting plate, the adjusting plate is provided with an adjusting groove, and the adjusting groove comprises a plurality of slope grooves and a sliding groove; the sliding groove is arranged along the length direction of the handrail; the slope grooves are arranged in the sliding grooves along the length direction of the sliding grooves; one end of the first supporting leg is provided with a hinged shaft which is hinged in the adjusting groove.

4. A folding chair as claimed in claim 1, wherein: the first supporting leg is provided with a limiting rod.

5. A folding chair as claimed in claim 1, wherein: one end of the seat plate is provided with a third supporting leg.

6. A folding chair as claimed in claim 5, wherein: the third supporting leg is obliquely arranged at the tail end of the seat plate.

7. A folding chair as claimed in claim 3, wherein: the included angle between the slope groove and the sliding groove is 40-50 degrees.

8. A folding chair as claimed in claim 1, wherein: and a head leaning plate is arranged at one end of the back leaning plate and is rotatably connected with the back leaning plate.

9. A folding chair as claimed in claim 8, wherein: the backrest plate is provided with a connecting piece, the connecting piece is provided with a rotating shaft, the backrest plate is provided with a rotating slotted hole, and the rotating shaft is limited and can be rotatably arranged in the rotating slotted hole.

10. A folding chair as claimed in claim 9, wherein: the head board is also provided with a long groove which is communicated with the rotating groove hole.