CN218551828U

CN218551828U - Folding chair

Info

Publication number: CN218551828U
Application number: CN202222696264.8U
Authority: CN
Inventors: 杨宝庆; 王健; 吴平; 程新欢
Original assignee: Zhejiang Hengfeng Top Leisure Co Ltd
Current assignee: Zhejiang Hengfeng Top Leisure Co Ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-03
Anticipated expiration: 2032-10-13

Abstract

The application discloses a folding chair, including two sets of side bearer subassemblies, arbitrary side bearer subassembly all includes the seat pipe, with the seat pipe rear portion rotates the back pipe of being connected and with the seat pipe non-tip position rotates the back foot pipe of being connected, back foot pipe along its axial slidable set up in the seat pipe, folding chair still includes two sets of upset pieces, arbitrary upset piece bottom is rotated and is set up in the non-tip position of back foot pipe, the non-tip position of upset piece rotates and is connected in the seat pipe, and the upset piece along its axial slidable set up in the seat pipe; wherein the flip is located at a rear side of the back tube. The folding chair arranged by adopting the mode has small volume after being folded, and can meet the requirement that people conveniently carry or package the folding chair.

Description

Folding chair

Technical Field

The application relates to the technical field of chairs, in particular to a folding chair.

Background

With the development of industry in recent years, the demand of people for material culture is generally improved, and higher experience and pursuit are provided for the seat, so that the folding chair appears. The folding chair is favored by people due to the characteristic of being freely folded and unfolded, can be unfolded to sit when needed, and can be folded when not needed, so that the space is not wasted, and the portability is strong.

At present, the folding chairs in the market are various, most of the folding chairs are inconvenient to fold, and the folding structure is too complex, so that the size of the folded chair is too large, and the folded chair is inconvenient to carry or package.

Therefore, how to design a folding chair with simple folding structure and small volume after folding is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

The utility model aims at providing a folding chair, this folding chair simple structure, folding back is small, satisfies the demand that people conveniently carried or packed this folding chair.

In order to achieve the above object, the present application provides a folding chair, including two sets of side frame assemblies, any of the side frame assemblies includes a seat tube, a backrest tube rotatably connected to a rear portion of the seat tube, and a rear foot tube rotatably connected to a non-end portion of the seat tube, the rear foot tube is slidably disposed on the seat tube along an axial direction thereof, the folding chair further includes two sets of flip members, a bottom end of any of the flip members is rotatably disposed on the non-end portion of the rear foot tube, the non-end portion of the flip member is rotatably connected to the seat tube, and the flip member is slidably disposed on the seat tube along the axial direction thereof; wherein the turnover piece is positioned at the rear side of the backrest tube.

Preferably, the folding chair further comprises:

the non-end part of the front foot tube is rotationally connected with the seat tube;

the two ends of the upper part of the front cross pipe are respectively and rotatably connected with the two seat pipes, and the two ends of the lower part of the front cross pipe are respectively and rotatably connected with the two front foot pipes;

and two ends of the upper part of the rear cross pipe are respectively and rotatably connected with the two backrest pipes, and two ends of the lower part of the rear cross pipe are respectively and rotatably connected with the two overturning parts.

Preferably, any one of the turnover parts is provided with a turnover part sliding sleeve, the turnover part is rotatably connected with the seat pipe through the turnover part sliding sleeve, and the turnover part slides with the turnover part sliding sleeve.

Preferably, the rear foot tube is provided with a rear foot tube sliding sleeve, the rear foot tube is rotatably connected with the seat tube through the rear foot tube sliding sleeve, and the rear foot tube slides with the rear foot tube sliding sleeve.

Preferably, the back cross pipe comprises two connecting pipes, the middle parts of the two connecting pipes are hinged, the back cross pipe is arranged in an X shape, and the front cross pipe and the back cross pipe are identical in structure.

Preferably, two ends of the upper part and two ends of the lower part of the front cross pipe are respectively provided with a first L-shaped piece, two edges of the two first L-shaped pieces at the upper part are respectively rotatably connected with the front cross pipe and the seat pipe, two edges of the two first L-shaped pieces at the lower part are respectively rotatably connected with the front cross pipe and the front foot pipe, and the first L-shaped pieces are used for enabling the front cross pipe to rotate along the two edges of the first L-shaped pieces.

Preferably, both ends of the upper portion and both ends of the lower portion of the back cross pipe are provided with second L-shaped pieces, two edges of the two second L-shaped pieces on the upper portion are respectively rotatably connected with the backrest pipe and the back cross pipe, two edges of the two second L-shaped pieces on the lower portion are respectively rotatably connected with the turnover piece and the back cross pipe, and the second L-shaped pieces are used for enabling the back cross pipe to rotate along the two edges of the second L-shaped pieces.

Preferably, a U-shaped connecting piece connected with the second L-shaped piece is rotatably arranged on any seat tube.

Preferably, the upset piece sliding sleeve is located the upset piece go up the turning point with between the turning point under the upset piece, go up the turning point do the back cross pipe with the upset piece rotates the junction, the turning point does down the back foot pipe with the upset piece rotates the junction.

Preferably, any one side frame assembly still includes the handrail pipe, handrail pipe rear portion with the back pipe rotates to be connected, preceding foot pipe upper end with the articulated tip back in back foot pipe upper end with handrail pipe rotates to be connected.

Preferably, be provided with the gear adjusting part on the handrail pipe, set up a plurality of draw-in grooves on the gear adjusting part, preceding foot pipe upper end with the articulated back tip in back foot pipe upper end with the gear adjusting part rotates to be connected, and can with the draw-in groove joint.

Compared with the background art, the folding chair provided by the application drives the front foot tube to rotate upwards by rotating the seat tube upwards, and in the rotating process of the front foot tube or the seat tube, because the upper end of the front cross tube is rotationally connected with the seat tube and the lower end of the front cross tube is rotationally connected with the front foot tube, the front cross tube can contract inwards, and meanwhile, the rear foot tube slides upwards along the sliding sleeve of the rear foot tube; the backstay pipe in-process that upwards slides, because upset piece bottom rotates with the backstay to be connected, consequently can drive upset piece backward when upwards sliding, and, in upset piece upset in-process, can drive the backstay pipe and the backward motion of upset piece junction, because the inside shrink of preceding crossing pipe can drive the whole shrink of folding chair, consequently the backstay pipe also can inwards shrink in its plane, after the seat pipe rotates to certain degree, the seat pipe is apart from the back pipe when nearest, the backstay pipe and backstay pipe all draw in together with preceding foot pipe, thereby reach the purpose that folding small. The folding chair arranged by adopting the mode meets the requirement that people conveniently carry or package the folding chair.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic perspective view of a folding chair provided in an embodiment of the present application in an open state;

fig. 2 is a schematic perspective view of the folding chair provided by the embodiment of the present application in an open state after a gear adjustment member is added;

FIG. 3 is a side view of the folding chair of FIG. 2;

FIG. 4 is a schematic view of the lower side of the folding chair of FIG. 2 after adjustment of the position adjustment members;

FIG. 5 is a schematic view of the underside of the chair of FIG. 2 in a semi-folded configuration;

FIG. 6 is a front view of the folding chair of FIG. 2 in a folded position;

fig. 7 is a schematic view of the underside of the folding chair of fig. 2 in a folded state.

In the figure: 1. the seat tube 11, the U-shaped connecting piece 2, the backrest tube 3, the front foot tube 4, the rear foot tube 41, the rear foot tube sliding sleeve 42, the sliding sleeve limiting block 5, the turnover piece 51, the turnover piece sliding sleeve 6, the handrail tube 61, the gear adjusting piece 7, the rear cross tube 71, the second L-shaped piece 8, the front cross tube 81 and the first L-shaped piece.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to better understand the technical scheme of the present application, the following detailed description is provided for the person skilled in the art with reference to the accompanying drawings and the detailed description.

It should be noted that the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", "rear", and the like in fig. 1 and fig. 2 of the present embodiment are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be configured and operated in a specific direction, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, in the present embodiment, a folding chair is provided, which includes a side frame assembly as an integral frame of the folding chair, the side frame assembly includes a backrest tube 2, a seat tube 1, a front leg tube 3 and a rear leg tube 4, a rear portion of the seat tube 1 is rotatably connected to the backrest tube 2, a non-end portion of the front leg tube 3 is rotatably connected to the seat tube 1, the rear leg tube 4 is rotatably connected to a non-end portion of the seat tube 1, and the rear leg tube 4 is slidably disposed in the seat tube 1 along an axial direction thereof.

In addition, the folding chair also comprises two groups of turning pieces 5, the lower part of each turning piece 5 is rotatably connected with the non-end part of the rear foot tube 4, the non-end part position of each turning piece 5 is rotatably connected with the seat tube 1, meanwhile, the turning pieces 5 are arranged on the seat tube 1 in a sliding way along the axial direction, and naturally, in order to facilitate the folding of the folding chair, the turning pieces 5 are arranged at the rear side of the backrest tube 2.

In this embodiment, the two ends of the upper part of the front cross pipe 8 are respectively rotatably connected with the two seat pipes 1, the two ends of the lower part of the front cross pipe 8 are respectively rotatably connected with the two front foot pipes 3, the two ends of the upper part of the rear cross pipe 7 are respectively rotatably connected with the two backrest pipes 2, and the two ends of the lower part of the rear cross pipe 7 are respectively rotatably connected with the two turnover pieces 5.

In summary of the above embodiments, when the folding chair needs to be folded, the seat tube 1 is rotated upward to drive the front leg tube 3 to rotate upward, and during the rotation of the front leg tube 3 or the seat tube 1, since the upper end of the front cross tube 8 is rotatably connected to the seat tube 1 and the lower end of the front cross tube 8 is rotatably connected to the front leg tube 3, the front cross tube 8 will contract inward, as shown in fig. 5, and at the same time, the rear leg tube 4 slides upward along the rear leg tube sliding sleeve 41.

In addition, as shown in fig. 5, in the process that the back foot tube 4 slides upwards, the bottom of the turnover part 5 is rotatably connected with the back foot tube 4, so that the turnover part 5 is driven to slide upwards and turn backwards, in the process that the turnover part 5 turns over, the joint of the back cross tube 7 and the turnover part 5 is driven to move backwards, and the whole folding chair is driven to shrink due to the inward shrinkage of the front cross tube 8, so that the back cross tube 7 also shrinks inwards in the plane.

As shown in fig. 6 and 7, when the seat tube 1 rotates to a certain degree and the seat tube 1 is closest to the backrest tube 2, the rear cross tube 7, the front cross tube 8, the rear foot tube 4 and the front foot tube 3 are folded together, so that the purpose of small folding volume is achieved.

It should be noted that, in this embodiment, the above-mentioned turnover part 5 is rotatably connected with the seat tube 1 through a turnover part sliding sleeve 51, and the turnover part 5 can slide in the turnover part sliding sleeve 51, and because the turnover part 5 can generate a certain displacement in the axial direction during the rotation process, in order to ensure the overall folding effect of the folding chair, the turnover part sliding sleeve 51 is sleeved on the periphery of the turnover part 5.

In addition, the back foot tube 4 is sleeved with a back foot tube sliding sleeve 41, and the principle is the same as that of the turnover piece sliding sleeve 51, and the back foot tube 4 needs to axially displace with the seat tube 1 in the rotating process, so that the rotation is realized through the back foot tube sliding sleeve 41.

Of course, the tilting member sliding sleeve 51 and the rear foot tube sliding sleeve 41 are not limited to the arrangement provided in the present embodiment, but need to ensure the same function as the present embodiment, and are set according to actual needs, and detailed description is not needed here.

In the present embodiment, the rear cross pipe 7 includes two connecting pipes, in order to ensure that the rear cross pipe 7 can be retracted inwards, the two connecting pipes are hinged in the middle, the rear cross pipe 7 is arranged in an X shape, and the front cross pipe 8 and the rear cross pipe 7 have the same structure; of course, the rear cross pipe 7 and the front cross pipe 8 are not limited to the X-shaped arrangement, and may be arranged in other configurations depending on the actual requirements of the folding chair, but it is necessary to ensure that the rear cross pipe 7 and the front cross pipe 8 can be retracted inward, and the volume after retraction is not too large.

In addition, in order to ensure that the front cross pipe 8 and the rear cross pipe 7 can rotate at multiple angles and improve the folding performance of the folding chair, the upper end and the lower end of the front cross pipe 8 are both provided with first L-shaped sheets 81, one surface of each first L-shaped sheet 81 is rotatably connected with the front cross pipe 8, and the other surface of each first L-shaped sheet 81 is rotatably connected with the seat pipe 1 or the front foot pipe 3, so that the multi-edge rotation of the front cross pipe 8 is realized, and the folding chair can be folded integrally by matching the folding chair more easily; of course, the L-shaped structure can be arranged in other ways, but it is necessary to ensure that the front cross tube 8 can rotate stably during the folding process of the folding chair, and the details are not described here.

Similarly, in order to ensure that the rear cross tube 7 and the flip member 5 can rotate at multiple angles, the second L-shaped piece 71 cooperates with the flip member 5 and the rear cross tube 7 to rotate backwards during the folding process, so that the folding chair is folded inwards and simultaneously turned backwards, and the folded state is as shown in fig. 6 and 7.

In order to further ensure the rotating effect of the seat tube 1 and the front foot tube 3, the U-shaped connecting piece 11 connected with the second L-shaped piece 71 is rotatably arranged on the seat tube 1, and certainly, the seat tube 1 and the backrest tube 2 can also be rotatably connected through the U-shaped connecting piece 11, so that a sufficient rotating space is reserved, the rotating effect among the components such as the seat tube 1, the backrest tube 2 and the front cross tube 8 is improved, the parts are more attached, and the integral volume of the folding chair is reduced; of course, the U-shaped connecting element 11 can also be extended to the connection between the remaining components, which is set according to the actual requirements and will not be described in detail here.

Of course, in order to ensure the rotation effect of the turning member 5, the turning member sliding sleeve 51 is arranged between the rotation point on the turning member 5 and the rotation point under the turning member 5, so as to increase the movable distance of the turning member sliding sleeve 51 to the maximum extent, improve the rotatable degree of the turning member 5, and further improve the folding effect of the folding chair.

In addition, for any side frame component, the chair backrest further comprises a handrail tube 6, the upper end of the front foot tube 3 is connected with the upper end of the rear foot tube 4 in a connecting way and then is rotatably connected with the handrail tube 6, and the rear part of the handrail tube 6 is rotatably connected with the backrest tube 2; it should be noted that the arrangement of the armrest tube 6 can limit the position of the backrest tube 2, so that the backrest tube 2 is connected with the front leg tube 3 and the rear leg tube 4, thereby ensuring the overall stability of the folding chair, and certainly, when the folding chair is folded, the seat tube 1 and other components can be driven to be contracted and folded by rotating the armrest tube 6, which is not described in detail herein.

In addition, as shown in fig. 4, a gear adjusting part 61 is additionally arranged on the armrest tube, a plurality of clamping grooves are arranged on the gear adjusting part 61, the upper end of the front foot tube 3 and the upper end of the rear foot tube 4 are hinged and then clamped with the clamping grooves, and the inclination degree of the backrest tube 2 can be adjusted according to the clamping position between the hinged front foot tube 3 and the hinged rear foot tube 4 and the clamping grooves, that is, when the backrest tube 2 needs to be inclined backwards, the clamping position between the hinged front foot tube 3 and the hinged rear foot tube 4 and the clamping grooves can be adjusted backwards, so that the backrest tube 2 is inclined backwards, and certainly, when the folding chair is folded, the front foot tube 3 and the rear foot tube 4 need to be separated from the clamping grooves.

It should be noted that, on the basis of the above-mentioned embodiments, the folding chair of the present application can be stably placed and used, specifically, when the seat tube 1 bears a load, the front leg tube 3 and the rear leg tube 4 are at the maximum divergence, the two side frame assemblies are connected with the rear cross tube 7 through the front cross tube 8, and the two side frame assemblies are tensioned and supported, and then the seat tube 1 and the rear leg tube 4 are supported and connected through the flip 5, so that the rear portion of the seat tube 1 and the rear leg tube 4 can be stably placed, and at the same time, the flip 5 can limit the rear cross tube 7, prevent the rear cross tube 7 from excessively rotating, and stabilize the rotation angle of the rear cross tube 7, thereby fixing the opening degree of the two backrest tubes 3, and achieving the purpose of stable placement and use.

In addition, in this embodiment, be provided with sliding sleeve stopper 42 on back foot pipe 4, and sliding sleeve stopper 42 is located back foot pipe sliding sleeve 41 top, when this folding chair is in the open mode, need restrict back foot pipe sliding sleeve 41 through sliding sleeve stopper 42 and slide to the degree of opening of control front foot pipe 3 and back foot pipe 4, of course, sliding sleeve stopper 42 can change the height of standing of this folding chair in certain effect, also can ensure this folding chair stable standing simultaneously.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A folding chair comprises two groups of side frame assemblies, wherein each side frame assembly comprises a seat tube, a backrest tube rotationally connected with the rear part of the seat tube and a rear foot tube rotationally connected with the non-end part of the seat tube, and is characterized in that the rear foot tube is arranged on the seat tube in a slidable manner along the axial direction of the rear foot tube; wherein the turnover piece is positioned at the rear side of the backrest tube.

2. The folding chair of claim 1, further comprising:

the two ends of the upper portion of the back cross pipe are rotatably connected with the two backrest pipes respectively, and the two ends of the lower portion of the back cross pipe are rotatably connected with the two overturning parts respectively.

3. The folding chair as claimed in claim 2, wherein any one of the tumblers is provided with a tumbler sliding sleeve, the tumbler is rotatably connected with the seat tube through the tumbler sliding sleeve, and the tumbler slides with the tumbler sliding sleeve.

4. The folding chair as claimed in claim 3, wherein the rear foot tube is provided with a rear foot tube sliding sleeve, the rear foot tube is rotatably connected with the seat tube through the rear foot tube sliding sleeve, and the rear foot tube is slidably connected with the rear foot tube sliding sleeve.

5. The folding chair as claimed in claim 2, wherein the rear cross tube comprises two connecting tubes, the two connecting tubes are hinged at the middle part, the rear cross tube is arranged in an X shape, and the front cross tube and the rear cross tube are identical in structure.

6. The folding chair as claimed in claim 5, wherein the front cross pipe is provided at both upper and lower ends thereof with first L-shaped pieces, both sides of the first L-shaped pieces at the upper portion are rotatably connected to the front cross pipe and the seat pipe, respectively, and both sides of the first L-shaped pieces at the lower portion are rotatably connected to the front cross pipe and the front leg pipe, respectively, the first L-shaped pieces being used for the front cross pipe to rotate along both sides of the first L-shaped pieces.

7. The folding chair as claimed in claim 6, wherein the rear cross tube is provided at both upper and lower ends thereof with second L-shaped pieces, both sides of the second L-shaped pieces at the upper portion are rotatably connected with the backrest tube and the rear cross tube, respectively, both sides of the second L-shaped pieces at the lower portion are rotatably connected with the tilting member and the rear cross tube, respectively, and the second L-shaped pieces are used for the rear cross tube to rotate along both sides of the second L-shaped pieces.

8. The folding chair as claimed in claim 7, wherein a U-shaped connecting member connected to the second L-shaped piece is rotatably provided on any one of the seat tubes.

9. The folding chair of claim 3, wherein said flip member sliding sleeve is located between a turning point on said flip member, said turning point being a rotational connection between said rear cross tube and said flip member, and a turning point on said flip member, said turning point being a rotational connection between said rear foot tube and said flip member.

10. The folding chair of any one of claims 2-9, wherein any one of said side frame assemblies further comprises a handle tube, a rear portion of said handle tube being pivotally connected to said back tube, and an upper end of said front leg tube being pivotally connected to said handle tube at an end thereof hinged to an upper end of said rear leg tube.

11. The folding chair according to claim 10, wherein a gear adjusting piece is arranged on the armrest tube, a plurality of clamping grooves are arranged on the gear adjusting piece, and the hinged end parts of the upper end of the front foot tube and the upper end of the rear foot tube are rotatably connected with the gear adjusting piece and can be clamped with the clamping grooves.