CN109431135B

CN109431135B - Reclining chair

Info

Publication number: CN109431135B
Application number: CN201811338310.9A
Authority: CN
Inventors: 吕伟郭
Original assignee: Zhejiang Senying Leisure Product Co ltd
Current assignee: Zhejiang Senying Leisure Product Co ltd
Priority date: 2018-11-12
Filing date: 2018-11-12
Publication date: 2024-06-04
Anticipated expiration: 2038-11-12
Also published as: CN109431135A

Abstract

The invention discloses a deck chair, which comprises a supporting structure, a base structure, a backrest structure and an armrest structure, wherein the supporting structure is movably connected with the base structure, the backrest structure is movably connected with the base structure, one end of the armrest structure is connected with the supporting structure, the other end of the armrest structure is connected with the backrest structure, and the deck chair also comprises an adjusting device, which is arranged on the armrest structure and is used for adjusting the relative placement angle of the backrest structure. The reclining chair provided by the invention has the advantages that a user can lie on the chair or sit on the chair to adjust the backrest structure to a required angle at any time and automatically, so that the reclining chair is suitable for the user to switch various sitting or lying states of the reclining chair in real time, and the reclining chair is simple in structure and convenient to operate.

Description

Reclining chair

Technical Field

The invention relates to the field of furniture, in particular to a deck chair.

Background

Foldable furniture such as a foldable deck chair, a foldable table and a foldable chair are convenient to adjust and comfortable to use, so that the foldable deck chair is increasingly applied, and particularly when the user is in leisure outdoors. In general, foldable furniture such as reclining chairs and the like need to be folded and placed when not in use so as to save storage space, and a locking device is needed to fix the whole in an open state so as to ensure the stability of the reclining chair.

The reclining chair in the prior art is generally not capable of automatically adjusting the unfolding angle of the backrest structure, namely, the state of the backrest structure cannot be adjusted at any time during use, and the reclining chair which can be automatically and at any time adjusted is particularly necessary because the reclining chair is repeatedly driven to rotate to a certain angle relative to the base structure after the reclining chair is started and cannot be adjusted at any time and automatically when lying on or sitting on the chair.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the reclining chair, a user can lie on the chair or sit on the chair to automatically adjust the backrest structure to a required angle at any time, so that the reclining chair is suitable for the user to instantly switch various sitting or lying states of the reclining chair, and the reclining chair has the advantages of simple structure and convenient operation.

In order to solve the technical problems, the invention is solved by the following technical scheme:

The utility model provides a deck chair, includes bearing structure, base structure and backrest structure and handrail structure, bearing structure and base structure swing joint, backrest structure and base structure swing joint, handrail structure one end links to each other with bearing structure, and the other end links to each other with backrest structure, its characterized in that: the device also comprises an adjusting device which is arranged on the armrest structure and used for adjusting the relative placement angle of the backrest structure.

Preferably, the adjusting device comprises:

A guide member coupled to the backrest structure;

A guide channel disposed along a length direction of the armrest structure;

the guide member moves relative to the guide channel to adjust the relative angle of placement of the backrest structure.

Preferably, the adjustment device further comprises a locking assembly comprising:

A locking member disposed on the armrest structure;

a locking passage provided on the guide member and provided in a front-rear direction of the guide member;

the locking piece is locked and/or separated relative to the locking channel to realize the positioning and/or adjustment of the backrest structure.

Preferably, the locking assembly further comprises a driving member connected to the locking member for driving the separation of the locking member from the locking channel.

Preferably, the locking assembly further comprises a reset piece, wherein the reset piece is connected with the locking piece and used for resetting after the locking piece is separated from the locking channel.

Preferably, the reset piece is arranged along the length direction perpendicular to the armrest structure, and the armrest structure is also provided with an installation space for installing the reset piece.

Preferably, the return member is configured as a resilient structure.

Preferably, the adjusting device further comprises an elastic member disposed in the guide member, one end of the elastic member is connected to the guide member, and the other end is connected to the locking passage.

Preferably, the backrest structure further comprises a supporting device, one end of the supporting device is connected with the backrest structure, and the other end of the supporting device is connected with the base structure and is used for supporting the backrest structure.

Preferably, the supporting device comprises a supporting piece and a positioning piece, one end of the supporting piece is connected with the backrest structure, the other end of the supporting piece is connected with the base structure through the positioning piece, and the supporting piece and the positioning piece are locked and unlocked to support and fold the backrest structure.

Preferably, the upper end of the support member is rotatably connected, and the lower end thereof is locked with a positioning member provided on the base structure by gravity.

Preferably, the upper end of the supporting piece is connected with the backrest structure through a connecting component, one end of the connecting component is rotatably connected with the backrest structure, and the other end of the connecting component is connected with the supporting piece; when the connecting component and the supporting piece synchronously rotate and are arranged along the gravity direction, the lower end of the supporting piece is locked with the positioning piece, so that the furniture structure is supported; the connecting component and the supporting piece synchronously rotate until the lower end of the supporting piece is far away from the positioning piece to be in a separation state with the positioning piece, and the backrest structure can be folded.

Preferably, the connecting component comprises a connecting piece, a limiting piece and a rotating shaft, one end of the connecting piece is connected with the backrest structure through the rotating shaft, and the other end of the connecting piece is connected with the supporting piece; the limiting piece is arranged on one side of the connecting piece and limits the connection state of the connecting piece and the supporting piece.

Preferably, the limiting piece comprises a limiting piece body, a connecting part and a limiting part are arranged on the limiting piece body, the connecting part is connected with the backrest structure, and the limiting part is arranged on the end part of the limiting piece body.

Preferably, the limiting part is formed along the end part of the limiting part body in an extending way, and a placing space for placing the connecting part is formed between the limiting part and the limiting part body.

Preferably, the spacing portion includes a first spacing portion extending from the spacing member body and a second spacing portion extending from an end of the first spacing portion, and the placement space is a space surrounded by the first spacing portion, the second spacing portion and the spacing member body.

Preferably, a fastening structure is arranged on the surface of the second limiting part, and a clamping groove is arranged on the connecting piece correspondingly and used for assisting in limiting the supporting piece positioning piece and/or the separating state.

Preferably, the end of the connecting piece is provided with a boss, when the connecting piece is positioned with the positioning piece of the limiting part, the end of the connecting piece is positioned in the placement space, the outer end of the first limiting part is propped against the boss of the connecting piece, and the clamping structure of the second limiting part is clamped in the clamping groove of the connecting piece and used for preventing the rotating of the connecting piece when the supporting piece is positioned with the positioning piece and/or in a separated state.

The invention achieves the following effects:

(1) The adjusting device of the deck chair is arranged on the armrest structure and is used for adjusting the relative placement angle of the backrest structure, the driving piece drives the locking piece to separate from the locking channel, the backrest structure is driven to be unfolded relatively to be adjusted to a required angle under the action of gravity applied by a user, and at the moment, the guide piece of the adjusting device performs extension movement relative to the guide channel arranged on the armrest structure so as to adapt to the angle adjustment of the backrest structure, so that the adjustment of the relative placement angle of the backrest structure is realized; when the backrest structure is relatively folded or folded to a required angle, a user breaks away from the gravity applied to the backrest structure, under the action of the elastic piece, the guide piece of the adjusting device performs shrinkage motion relative to the guide channel arranged on the armrest structure at the moment so as to adapt to the angle adjustment of the backrest structure, thereby realizing the adjustment of the relative placement angle of the backrest structure, when the user finishes the adjustment of the required position or angle of the backrest structure, the driving piece drives the locking piece to reset the locking piece relative to the locking channel under the action of the reset piece, thereby realizing the locking of the locking piece, and the backrest structure is not easy to loosen.

(2) The back rest structure of the deck chair is provided with the supporting device which is used for supporting the back rest structure, the supporting device is simple in structure, the supporting piece is locked with the positioning piece on the base structure through the action of gravity, the operation is simple, and the supporting effect of the supporting device is achieved without the help of the action of external force.

Additional aspects and advantages of the invention 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 invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic structural view of one embodiment of a lounge chair of the present invention;

FIG. 2 is a schematic diagram of a second embodiment of a lounge chair of the present invention;

FIG. 3 is a schematic view of the structure of the adjusting device of the present invention;

FIG. 4 is a schematic view of the structure of the locking assembly of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of a supporting device according to the present invention;

FIG. 7 is a second schematic structural view of the supporting device of the present invention;

FIG. 8 is a schematic diagram of a limiting member according to the present invention;

FIG. 9 is a second schematic structural view of the limiting member of the present invention;

FIG. 10 is a schematic view of a connector according to the present invention;

Fig. 11 is a schematic structural view of the spacing element and the connecting element according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, 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.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in figures 1-11, as an embodiment of the invention, the deck chair is mainly used as a tool for leisure, a user can adjust the deck chair to a required state according to needs, and the deck chair can be folded to realize storage when not used, so that the floor area is small. In this embodiment, the reclining chair comprises a supporting structure 100, a base structure 200, a backrest structure 300 and an armrest structure 400, wherein the supporting structure 100 is movably connected with the base structure 200, and the backrest structure 300 is movably connected with the base structure 200, so as to play a supporting role, ensure that the reclining chair is stably placed and can bear enough stress. One end of the armrest structure 400 of the embodiment is connected with the support structure 100, the other end is connected with the backrest structure 300, and the armrest structure 400 is provided with an adjusting device 1 for adjusting the relative placement angle of the backrest structure 300, which is convenient for adjustment and can automatically adjust the reclining chair.

According to the embodiment of the present invention, as shown in fig. 3 to 5, the adjusting device 1 includes a guide 11, a guide channel 12 disposed along the length direction of the armrest structure 400, and an elastic member 13, wherein a cavity formed inside the armrest structure 400 corresponds to the guide channel 12, one end of the guide 11 is rotatably connected to the backrest structure 300, and the other end of the guide 11 is connected to the armrest structure 400, and the movement of the guide 11 along the guide channel 12 corresponds to the movement along the length direction of the armrest structure 400, and the relative movement corresponds to the adjustment of the relative placement angle of the backrest structure 300. When the backrest structure 300 is adjusted to a desired angle, the backrest structure 300 is locked by the locking assembly, the locking assembly of the present embodiment provides the functions of opening and locking for the adjustment and positioning of the backrest structure 300, the locking assembly includes the locking member 14 provided on the armrest structure 400, the driving member 15 and the reset member 16 connected with the locking member 14, and the locking channel 17, the driving member 15 is used for driving the locking member 14 to separate from the locking channel 17, the driving member 15 may be configured as a push type, a rotary type or other realizable manner, as long as the locking member 14 can be driven to separate from the locking channel 17, the driving member 15 may be manually driven, and can be set to be electrically driven, which is within the scope of the present embodiment. When the position of the backrest structure 300 needs to be adjusted, the backrest structure 300 acts on the driving member 15, the driving member 15 drives the locking member 14 to slide out of the locking channel 17 and be in a separated state from the locking channel 17, namely, the locking member 14 is opened, the resetting member 16 is in a compressed state, the backrest structure 300 drives the backrest structure 300 to relatively expand and adjust to a required angle under the action of gravity applied by a user, the guide member 11 of the adjusting device 1 relatively stretches and moves relative to the guide channel 12 arranged on the armrest structure 400 to adapt to the angle adjustment of the backrest structure 300, thereby realizing the adjustment of the relative placement angle of the backrest structure 300, and the elastic piece 13 moves along with the locking channel 17 and the guide piece 11, the elastic piece 13 is in an extending state, the driving piece 15 is loosened, the reset piece 16 is reset from a compressed state, the locking piece 14 is reset, and the locking piece 14 automatically realizes the locking with the locking channel 17 under the action of the reset piece 16, so that the backrest structure 300 is positioned or locked, and the backrest structure 300 is ensured to be stably positioned at a required placement angle position so as to adapt to the requirement of a user on a deck chair. When the backrest structure 300 is relatively folded or folded to a required angle, the user breaks away from the gravity applied to the backrest structure 300, under the action of the elastic member 13, the guide member 11 of the adjusting device 1 performs shrinkage movement relative to the guide channel 12 arranged on the armrest structure 400 to adapt to the angle adjustment of the backrest structure 300, so as to realize the adjustment of the relative placement angle of the backrest structure 300, when the user completes the adjustment of the required position or angle of the backrest structure 300, under the action of the reset member 16, the driving member 15 drives the locking member 14 to reset the locking member 14 relative to the locking channel 17, thus, the locking of the locking piece 14 is realized, the backrest structure 300 is not easy to loosen, the reclining chair of the invention can be adjusted by a user at any time according to needs, the angle adjustment is realized automatically, the reclining chair is not driven by an additional power source, the reclining chair is also realized without other external acting force applied by the user, and the reclining chair can realize the instant adjustment of the backrest structure 300 by the gravity action of the user. The driving member 15 of the present embodiment may be disposed at any position on the armrest structure 400, for example, on the front end of the armrest structure 400, or may be disposed at a middle position, as shown in fig. 1 and 2, and the present embodiment illustrates that the locking member 14 and the driving member 15 are disposed inside the armrest structure 400, and disposed inside the armrest structure 400, so that the driving member 15 is convenient to operate, and the overall appearance of the reclining chair can be improved. The restoring member 16 of this embodiment is preferably an elastic structure, such as a freely compressible spring, as shown in fig. 4 and 5, one end of the restoring member 16 is connected to the locking member 14, and the other end is directly disposed on the armrest structure 400 through the connecting member 23, so as to adapt to the rotation of the locking member 14, and the restoring member 16 of this embodiment is disposed along the length direction perpendicular to the armrest structure 400, and to reduce the occupied space, so that an installation space is provided on the armrest structure 400, thereby facilitating the installation of the restoring member 16.

According to an embodiment of the present invention, the strength of the reclining chair of the present invention is further improved, so that the support device 2 is further provided at the rear of the backrest structure 300, and the support device 2 of the present embodiment is connected to the backrest structure 300 at one end and the base structure 200 at the other end for supporting the backrest structure 300. The supporting device 2 of the present embodiment includes a supporting member 21 and a positioning member 22, wherein one end of the supporting member 21 is connected with the backrest structure 300 and is rotatably connected, and the other end of the supporting member is connected with the base structure 200 through the positioning member 22, and the supporting and folding of the backrest structure 300 are achieved through locking and unlocking of the supporting member 21 and the positioning member 22, and the positioning member 22 can be provided with a plurality of gear structures or a gear structure, which is within the protection scope of the present embodiment, and meanwhile, the positioning member 22 is provided with a positioning slot 221 locked with the supporting member 21, which is not limited to the structure of the present embodiment. In this embodiment, the lower end of the supporting member 21 is locked with the positioning member 22 disposed on the base structure 200 through gravity, that is, in the process of adjusting the angle of the backrest structure 300, the lower end of the supporting member 21 does not need to be manually connected by a user, and the supporting member 21 is clamped in the positioning member 22 and connected with the positioning member 22 due to the gravity force when the backrest structure 300 is adjusted to a desired position due to the gravity force, so as to realize the supporting function of the backrest structure 300.

According to the embodiment of the present invention, the upper end of the supporting member 21 is connected to the backrest structure 300 through a connecting component, one end of the connecting component is rotatably connected to the backrest structure 300, and the other end of the connecting component is connected to the supporting member 21, when the connecting component rotates synchronously with the supporting member 21 and is arranged along the gravity direction, the lower end of the supporting member 21 is locked with the positioning member 22, so as to support the furniture structure such as the connection of the backrest structure 300 and the base structure 200; the folding of the backrest structure 300 is facilitated when the connecting assembly rotates synchronously with the support 21 to a position where the lower end of the support 21 is away from the positioning member 22 to be in a separated state from the positioning member 22. In this embodiment, the connecting assembly includes a connecting member 23, a limiting member 24 and a rotating shaft 25, wherein one end of the connecting member 23 is connected to the backrest structure 300 through the rotating shaft 25, and the other end of the connecting member is connected to the supporting member 21, and the connecting member 23 can rotate relative to the rotating shaft 25 under the action of the supporting member 21 along the gravity direction, so as to realize the supporting function of the supporting device 2.

According to an embodiment of the present invention, as shown in fig. 6 to 11, the limiting member 24 is disposed at one side of the connecting member 23, and preferably the limiting member 24 is connected to the backrest structure 300, and when the supporting member 21 rotates to be disposed substantially in the vertical direction, the limiting member 24 disposed at the same side of the supporting member 21 as the rotating direction is used to limit the rotation of the supporting member 21, further ensuring that the supporting member 21 is connected to the positioning member 22, and limiting the connection state of the connecting member 23 and the supporting member 21. If the supporting member 21 continues to rotate along the rotation direction under the inertial action of the gravity force, the connection relationship between the supporting member 21 and the positioning member 22 will have a drop in connection, so as to ensure the connection accuracy of the two. The limiting member 24 of this embodiment includes a limiting member body 241, on which a connecting portion 242 and a limiting portion are disposed, wherein the connecting portion 242 is used to connect with the backrest structure 300, the limiting portion is disposed on an end portion of the limiting member body 241, the limiting portion 243 of this embodiment is formed by extending along an end portion of the limiting member body 241, a placement space 246 for placing the connecting member 23 is formed with the limiting member body 241, the limiting portion 243 of this embodiment includes a first limiting portion 243 extending from the limiting member body 241 and a second limiting portion 244 extending from an end portion of the first limiting portion 243, the placement space 246 is a space surrounded by the first limiting portion 243, the second limiting portion 244 and the limiting member body 241, and a fastening structure 245 is disposed on a surface of the second limiting portion 244, the fastening structure 245 of this embodiment may preferably be selected from a boss formed by extending from an inner wall of the second limiting portion 244, the corresponding connecting piece 23 is provided with a clamping groove 231 which is used for being matched and connected with a clamping structure 245 to play a limiting role, when the connecting piece 23 is connected with the backrest structure 300 through the rotating shaft 25, and the supporting piece 21 and the connecting piece 23 rotate to be positioned with the positioning piece 22 under the action of gravity, the end part of the connecting piece 23 is positioned in the placing space 246, at the moment, the outer end part of the first limiting part 243 just abuts against a boss of the connecting piece 23, the clamping structure 245 of the second limiting part 244 is clamped in the clamping groove 231 of the connecting piece 23 to prevent the rotating of the connecting piece 23 when the supporting piece 21 and the positioning piece 22 are positioned, on one hand, the limiting role of the supporting piece 21 and the connecting piece 23 is played, on the other hand, when the supporting piece 21 is supported, namely, the lower end is positioned through the locking with the positioning piece 22, the connecting piece 23 connected with the upper end is limited through the limiting piece 24, and the supporting stability of the supporting piece 21 is further improved, when the support member 21 is not required to be supported, that is, when the reclining chair is folded or stored, the connection mode of the connection member 23 and the limiting member 24 is the same as the principle shown above, so that two connection portions 242 are usually provided on the connection member 23, and the two states of the support member 21 are switched.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the invention.

Claims

1. The utility model provides a deck chair, includes bearing structure, base structure and backrest structure and handrail structure, bearing structure and base structure swing joint, backrest structure and base structure swing joint, handrail structure one end links to each other with bearing structure, and the other end links to each other with backrest structure, its characterized in that: the adjusting device is arranged on the armrest structure and used for adjusting the relative placement angle of the backrest structure;

the adjusting device comprises: the guide piece moves relative to the guide channel to adjust the relative placement angle of the backrest structure;

The locking assembly includes:

A locking member disposed on the armrest structure;

A locking passage provided on the guide member and provided in a front-rear direction of the guide member; the locking piece is locked and/or separated relative to the locking channel to realize the positioning and/or adjustment of the backrest structure;

The driving piece is connected with the locking piece and used for driving the locking piece to separate from the locking channel;

the reset piece is arranged along the length direction perpendicular to the armrest structure, the armrest structure is also provided with an installation space for installing the reset piece, and the reset piece is connected with the locking piece and is used for resetting after the locking piece is separated relative to the locking channel;

the elastic piece is arranged in the guide piece, one end of the elastic piece is connected with the guide piece, and the other end of the elastic piece is connected with the locking channel;

When the position of the backrest structure is adjusted, the driving part drives the locking part to slide out of the locking channel and be in a separated state with the locking channel, the resetting part is in a compressed state, the backrest structure drives the backrest structure to be relatively unfolded and adjusted to a required angle under the action of the applied gravity, and at the moment, the guide part of the adjusting device performs extension movement relative to the guide channel arranged on the armrest structure to adapt to the angle adjustment of the backrest structure, so that the adjustment of the relative placement angle of the backrest structure is realized; the elastic piece moves along with the locking channel and the guide piece, the elastic piece is in an extension state, the reset piece is reset from a compression state after the driving piece is released, the locking piece is reset, the locking piece is locked with the locking channel under the action of the reset piece, and the backrest structure is positioned or locked; when the backrest structure is folded or folded to a required angle relatively, a user breaks away from the gravity applied to the backrest structure, and under the action of the elastic piece, the guide piece of the adjusting device performs shrinkage movement relative to the guide channel arranged on the armrest structure to adapt to the angle adjustment of the backrest structure, so that the adjustment of the relative placement angle of the backrest structure is realized; after the user finishes the adjustment of the position or angle required by the backrest structure, the driving piece drives the locking piece under the action of the resetting piece, so that the locking piece resets relative to the locking channel, and the locking of the locking piece is realized.

2. A lounge chair as claimed in claim 1, wherein: the reset member is configured as a resilient structure.

3. A lounge chair as claimed in any one of claims 1 to 2, wherein: the backrest structure comprises a backrest structure, a base structure and a supporting device, wherein the backrest structure is arranged on the base structure, and the supporting device is connected with the backrest structure at one end and connected with the base structure at the other end.

4. A lounge chair as claimed in claim 3, wherein: the supporting device comprises a supporting piece and a positioning piece, one end of the supporting piece is connected with the backrest structure, the other end of the supporting piece is connected with the base structure through the positioning piece, and the supporting piece and the positioning piece are locked and unlocked to support and fold the backrest structure.

5. The lounge chair as claimed in claim 4, wherein: the upper end of the supporting piece is rotatably connected, and the lower end of the supporting piece is locked with a positioning piece arranged on the base structure through the action of gravity.

6. The lounge chair as claimed in claim 5, wherein: the upper end of the supporting piece is connected with the backrest structure through a connecting component, one end of the connecting component is rotatably connected with the backrest structure, and the other end of the connecting component is connected with the supporting piece; when the connecting component and the supporting piece synchronously rotate and are arranged along the gravity direction, the lower end of the supporting piece is locked with the positioning piece, so that the support of the backrest structure and the base structure is realized; the connecting component and the supporting piece synchronously rotate until the lower end of the supporting piece is far away from the positioning piece to be in a separation state with the positioning piece, and the backrest structure can be folded.

7. The lounge chair as claimed in claim 6, wherein: the connecting component comprises a connecting piece, a limiting piece and a rotating shaft, one end of the connecting piece is connected with the backrest structure through the rotating shaft, and the other end of the connecting piece is connected with the supporting piece; the limiting piece is arranged on one side of the connecting piece and limits the connection state of the connecting piece and the supporting piece.

8. The lounge chair as claimed in claim 7, wherein: the limiting piece comprises a limiting piece body, a connecting part and a limiting part are arranged on the limiting piece body, the connecting part is connected with the backrest structure, and the limiting part is arranged on the end part of the limiting piece body.

9. The lounge chair as claimed in claim 8, wherein: the limiting part is formed by extending along the end part of the limiting part body, and a placing space for placing the connecting part is formed between the limiting part and the limiting part body.

10. The lounge chair as claimed in claim 9, wherein: the spacing portion includes from the first spacing portion of locating part body extension and from the second spacing portion of the tip extension of first spacing portion, place the space that the space was enclosed by first spacing portion, second spacing portion and locating part body.

11. The lounge chair as claimed in claim 10, wherein: the second limiting part surface is equipped with the buckle structure, corresponds be equipped with the draw-in groove on the connecting piece for with the cooperation of buckle structure is connected, plays spacing effect.

12. The lounge chair as claimed in claim 11, wherein: the end of the connecting piece is provided with a boss, when the connecting piece is positioned with the limiting part and the positioning piece, the end of the connecting piece is positioned in the placement space, the outer end of the first limiting part is propped against the boss of the connecting piece, and the clamping structure of the second limiting part is clamped in the clamping groove of the connecting piece and used for preventing the rotating of the connecting piece when the supporting piece is positioned with the positioning piece.