CN111671261B

CN111671261B - Foldable back stool

Info

Publication number: CN111671261B
Application number: CN202010489890.2A
Authority: CN
Inventors: 周七燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2025-03-07
Anticipated expiration: 2040-06-02
Also published as: CN111671261A

Abstract

The present invention discloses a foldable backrest stool, which includes a stool body frame, a backrest frame and a pivot assembly, wherein the pivot assembly includes a first joint component, a second joint component and a snap structure, wherein the first joint component is movably connected to the second joint component so as to be able to rotate relative to one another around a positioning axis, wherein the first joint component has a connecting portion and a locking portion, wherein one side of the second joint component has an installation cavity for accommodating the connecting portion and a locking cavity for accommodating the locking portion, and wherein the snap structure enables the first joint component to move along the positioning axis so as to enable the locking portion to move out of the locking cavity. The snap structure enables the first joint component and the second joint component to be locked, thereby limiting the relative rotation of the first joint component and the second joint component, thereby locking the backrest frame to a position of being unfolded or folded relative to the stool body frame; the snap structure is unlocked by pressing and moving, and the operation is relatively convenient, thereby making the unfolding and folding operations of the backrest stool relatively convenient.

Description

Foldable backrest stool

Technical Field

The invention relates to the technical field of outdoor products, in particular to a backrest stool.

Background

In some outdoor activities, such as fishing and picnic, a back bench is often used, and the back bench is typically provided in a collapsible configuration. Wherein, the back rest frame of the back rest stool can rotate and fold relative to the stool body frame. When the back stool is unfolded, the back frame is generally locked on the stool body frame by a bolt tightening mode, and with the structure, folding and unfolding of the back stool are required to be carried out by screwing the bolt, so that inconvenience exists in operation.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the foldable backrest stool, which is convenient to fold and unfold.

A foldable backrest stool according to an embodiment of the invention comprises a stool body frame, a backrest frame positioned on one side of the stool body frame, and a pivot assembly comprising a first joint member, a second joint member and a snap fastener structure, wherein one of the first joint member and the second joint member is connected with the stool body frame, the other is connected with the backrest frame, the first joint member is movably connected with the second joint member so as to be capable of relatively rotating around a positioning axis, a connecting part and a locking part are arranged on the first joint member, one side of the second joint member is provided with a mounting cavity for accommodating the connecting part and a locking cavity for accommodating the locking part, and the snap fastener structure can enable the first joint member to move along the positioning axis so as to enable the locking part to move out of the locking cavity.

The foldable backrest stool at least has the advantages that the first joint piece and the second joint piece can be locked through the snap fastener structure, and the relative rotation of the first joint piece and the second joint piece is limited, so that the backrest frame can be locked at the unfolding or folding position relative to the stool body frame, the snap fastener structure can be operated and unlocked in a pressing movement mode, the operation is convenient, and the unfolding and folding operation of the backrest stool is convenient.

According to some embodiments of the invention, the pivot assembly further comprises a shaft member disposed on the first joint member, the shaft member passing through the second joint member and being movable relative to the second joint member along the positioning axis, at least one of the first joint member and the second joint member being rotatable relative to the shaft member.

According to some embodiments of the invention, the first blocking portion and the second blocking portion are provided at intervals on the one side of the second joint member, and the mounting cavity and the locking cavity are formed between the first blocking portion and the second blocking portion.

According to some embodiments of the invention, the snap structure comprises a snap member located on the other side of the second joint member and connected to the shaft member, and an elastic member located between the snap member and the second joint member.

According to some embodiments of the invention, the shaft member is configured as a connecting bolt, the first joint member is provided with a first through hole, the second joint member is provided with a second through hole, and the connecting bolt penetrates through the first through hole and the second through hole.

According to some embodiments of the invention, the height of the first barrier is less than the height of the second barrier.

According to some embodiments of the invention, the first blocking portion is provided with a positioning notch capable of accommodating the locking portion.

According to some embodiments of the invention, the locking portion is provided with a guide groove, and when the first joint member and the second joint member rotate relatively, an end portion of the first blocking portion is accommodated in the guide groove and slides along the guide groove. .

According to some embodiments of the invention, the stool body frame comprises a first support, a second support, a first connecting rod frame and a second connecting rod frame, wherein the second support is arranged at intervals with the first support, one side of the first connecting rod frame is rotatably connected with the first support, the other side of the first connecting rod frame is rotatably connected with the second support, one side of the second connecting rod frame is rotatably connected with the first support, the other side of the second connecting rod frame is rotatably connected with the second support, and the middle part of the second connecting rod frame is rotatably connected with the middle part of the first connecting rod frame.

According to some embodiments of the invention, the first connecting rod frame comprises a first rod frame and a first supporting rod, one side of the first rod frame is rotatably connected with the first support, the other side of the first rod frame is rotatably connected with one end of the first supporting rod, the other end of the first supporting rod is rotatably connected with the second support, the second connecting rod frame comprises a second rod frame and a second supporting rod, one side of the second rod frame is rotatably connected with the second support, the other side of the second rod frame is rotatably connected with one end of the second supporting rod, the other end of the second supporting rod is rotatably connected with the first support, and the first rod frame and the second rod frame are rotatably connected.

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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a block diagram of one embodiment of a collapsible back bench of the present invention;

FIG. 2 is an exploded view of the collapsible back bench shown in FIG. 1;

FIG. 3 is a cross-sectional view of the pivot assembly shown in FIG. 1;

FIG. 4 is an exploded view of the pivot assembly shown in FIG. 1;

FIG. 5 is an exploded view of another embodiment of a pivot assembly;

fig. 6 is a block diagram of the first articular component shown in fig. 5.

Reference numerals:

Stool body frame 100, first support 110, second support 120, first link frame 130, first bar frame 131, first strut 132, second link frame 140, second bar frame 141, second strut 142, back frame 200, pivot assembly 300, first joint member 310, connection portion 311, locking portion 312, guide slot 313, second joint member 320, first blocking portion 321, second blocking portion 322, mounting cavity 323, locking cavity 324, positioning notch 325, snap structure 330, snap fastener 331, elastic member 332, shaft member 340, positioning axis a

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1 to 6, the foldable back stool according to the embodiment of the present invention includes a stool body frame 100, a back frame 200, and a pivot assembly 300, the back frame 200 being located at one side of the stool body frame 100. A support cloth or a support plate (not shown) is provided on the stool body frame 100 and the back rest frame 200 so that a user can sit down and lie down.

The pivot assembly 300 includes a first joint member 310, a second joint member 320, and a snap structure 330, where the first joint member 310 is disposed on the backrest frame 200, the second joint member 320 is disposed on the bench frame 100, and the first joint member 310 and the second joint member 320 are movably connected, so that the first joint member 310 and the second joint member 320 can rotate relatively around a positioning axis a, and the snap structure 330 is disposed at a connection position of the first joint member 310 and the second joint member 320. The first joint member 310 has a connecting portion 311 and a locking portion 312, the connecting portion 311 has a projection along the positioning axis a having a width greater than a projection of the locking portion 312 along the positioning axis a, and the second joint member 320 has a mounting cavity 323 for receiving the connecting portion 311 and a locking cavity 324 for receiving the locking portion 312 on one side thereof, and the snap structure 330 enables the first joint member 310 to move along the positioning axis to move the locking portion 312 out of the locking cavity 324.

The back rest frame 200 rotates relative to the stool body frame 100 during the unfolding and folding processes, and the first joint member 310 also rotates relative to the second joint member 320. The snap structure 330 can lock the first and second joint members 310 and 320 to restrict the relative rotation of the first and second joint members 310 and 320, thereby locking the back frame 200 in a unfolded or folded position with respect to the bench frame 100. The snap fastener structure 330 is operated and unlocked in a pressing movement manner, so that the operation is convenient, and the unfolding and folding operations of the backrest stool are convenient.

In some embodiments, the first joint member 310 can also be disposed on the bench frame 100, and the second joint member 320 can be disposed on the back frame 200.

The pivot assembly 300 further includes a shaft member 340, the shaft member 340 is disposed on the first joint member 310, the shaft member 340 is further disposed through the second joint member 320, and the shaft member 340 is movable along a positioning axis a relative to the second joint member 320, and an axis of the shaft member 340 coincides with the positioning axis a. At least one of the first and second articular components 310, 320 is rotatable relative to the shaft member 340.

For example, in one embodiment, the shaft member 340 is configured as a connecting bolt, the first joint member 310 is provided with a first through hole, the second joint member 320 is provided with a second through hole, and the connecting bolt is disposed through the first through hole and the second through hole, so that the connecting bolt can move and rotate relative to the first joint member 310, and the connecting bolt can move and rotate relative to the second joint member 320.

In some embodiments, shaft member 340 may also be configured as a rivet that is inserted through the first and second through holes and has a flange formed at one end to prevent the rivet from being disengaged from first articular component 310 when the rivet is moved toward second articular component 320.

In some embodiments, shaft member 340 can be fixedly coupled to first articular component 310 such that shaft member 340 can move and rotate relative to second articular component 320.

Referring to fig. 2 and 4, a first blocking portion 321 and a second blocking portion 322 are provided at a side of the second joint member 320 at intervals, a mounting cavity 323 and a locking cavity 324 are formed between the first blocking portion 321 and the second blocking portion 322, the mounting cavity 323 accommodates the connection portion 311, and the locking cavity 324 accommodates the locking portion 312.

Since the first blocking portion 321 and the second blocking portion 322 are spaced apart, two locking cavities 324 are formed on the second joint member 320. When the back stool is folded, the first joint member 310 is pushed to move along the positioning axis a so that the locking part 312 moves out of the locking cavity 324, then the back stool 200 and the first joint member 310 are rotated, and when the locking part 312 moves to a position corresponding to the other locking cavity 324, the locking part 312 is placed into the other locking cavity 324. Thus, the back rest 200 can be locked in a folded or unfolded position with respect to the stool body frame 100 by the above-described structure.

The snap structure 330 includes a snap 331 and an elastic member 332, the snap 331 is located at the other side of the second joint member 320, and the snap 331 is connected to the shaft 340, and the elastic member 332 is disposed between the snap 331 and the second joint member 320. Thus, when the back stool is in the unfolded and folded state, the connecting part 311 can be kept in the mounting cavity 323 by the action of the elastic piece 332, and the movable shaft rod piece 340 can be pushed to move by pressing the pressing piece 331, so that the connecting part 311 has a space to move out of the locking cavity 324, and the first joint piece 310 can rotate relative to the second joint piece 320.

Wherein, the elastic member 332 is configured as a compression spring, and the compression spring is sleeved on the shaft member 340. In some embodiments, the elastic member 332 may be configured as a spring, a rubber block, or the like.

In some embodiments, snap structure 330 may also be configured as a cam that is rotatably coupled to shaft member 340, and upon rotation of the cam, moves shaft member 340 along positioning axis a.

The height of the first blocking portion 321 is smaller than that of the second blocking portion 322, so that the first joint member 310 only rotates along the first blocking portion 321, and when the locking portion 312 moves to abut against the second blocking portion 322, the locking portion 312 is located at a position opposite to the locking cavity 324, so that a user can conveniently determine whether the backrest frame 200 rotates in place. The distance difference between the end surface of the first blocking portion 321 and the bottom surface of the mounting cavity 323 in the direction along the positioning axis a is the height of the first blocking portion 321, and the distance difference between the end surface of the second blocking portion 322 and the bottom surface of the mounting cavity 323 is the height of the second blocking portion 322.

Referring to fig. 5, in some embodiments, the first blocking portion 321 is provided with a positioning notch 325 that can accommodate the locking portion 312. When a user needs to lie on the back bench, the locking portion 312 can be adjusted to lie within the positioning notch 325.

Referring to fig. 6, in some embodiments, the locking portion 312 has a guide groove 313 thereon that can receive the first blocking portion 321. After the locking portion 312 moves out of the locking cavity 324, the end portion of the first blocking portion 321 may be placed into the guide groove 313 when the first joint member 310 is rotated, and the end portion of the first blocking portion 321 slides along the guide groove 313 to limit the shake when the first joint member 310 is rotated.

Referring to fig. 1 and 2, the stool body frame 100 includes a first bracket 110, a second bracket 120, a first link frame 130 and a second link frame 140, the first bracket 110 and the second bracket 120 being spaced apart, one side of the first link frame 130 being rotatably connected to the first bracket 110 through a pin, and the other side being rotatably connected to the second bracket 120 through a pin. One side of the second link frame 140 is rotatably connected with the first bracket 110 through a pin, the other side is rotatably connected with the second bracket 120 through a pin, and the middle part of the second link frame 140 is rotatably connected with the middle part of the first link frame 130 through a pin. Thus, the stool body frame 100 can be folded.

The first link frame 130 includes a first rod frame 131 and a first supporting rod 132, one side of the first rod frame 131 is rotationally connected with the first bracket 110, the other side of the first rod frame 131 is rotationally connected with one end of the first supporting rod 132 through a pin shaft, and the other end of the first supporting rod 132 is rotationally connected with the second bracket 120. The second link bracket 140 includes a second lever frame 141 and a second support rod 142, one side of the second lever frame 141 is rotatably connected with the second bracket 120, the other side of the second lever frame 141 is rotatably connected with one end of the second support rod 142 through a pin, the other end of the second support rod 142 is rotatably connected with the first bracket 110, and the first lever frame 131 and the second lever frame 141 are rotatably connected.

In some embodiments, the first bar frame 131 and the first strut 132 may be fixedly connected, and the second bar frame 141 and the second strut 142 may be fixedly connected. Or the first supporting rod 132 and the second supporting rod 142 are not arranged, two sides of the first rod frame 131 are directly and correspondingly connected with the first bracket 110 and the second bracket 120 in a rotating way, and two sides of the second rod frame 141 are directly and correspondingly connected with the first bracket 110 and the second bracket 120 in a rotating way.

Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.

Claims

1. A foldable backrest stool, characterized by comprising:

Stool frame;

A backrest frame, the backrest frame is located on one side of the stool body frame;

A pivot assembly, the pivot assembly comprising a first joint, a second joint and a snap structure, one of the first joint and the second joint is connected to the stool body frame, and the other is connected to the backrest frame, the first joint and the second joint are movably connected to each other so as to be able to rotate relative to each other around a positioning axis, the first joint has a connecting portion and a locking portion, one side of the second joint has a mounting cavity for accommodating the connecting portion and a locking cavity for accommodating the locking portion, and the snap structure enables the first joint to move along the positioning axis so as to move the locking portion out of the locking cavity;

The pivot assembly further comprises a shaft member provided on the first joint member, the shaft member passing through the second joint member and being movable along the positioning axis relative to the second joint member, and at least one of the first joint member and the second joint member being rotatable relative to the shaft member;

A first blocking portion and a second blocking portion are provided at intervals on one side of the second joint component, and the installation cavity and the locking cavity are formed between the first blocking portion and the second blocking portion;

The snap button structure comprises a snap button part and an elastic part, wherein the snap button part is located at the other side of the second joint part and connected to the shaft rod part, and the elastic part is arranged between the snap button part and the second joint part;

The height of the first blocking part is smaller than the height of the second blocking part. In the direction along the positioning axis, the distance difference between the end surface of the first blocking part and the bottom surface of the mounting cavity is the height of the first blocking part; the distance difference between the end surface of the second blocking part and the bottom surface of the mounting cavity is the height of the second blocking part.

2. The foldable backrest stool according to claim 1 is characterized in that the shaft rod is configured as a connecting bolt, the first joint component is provided with a first through hole, the second joint component is provided with a second through hole, and the connecting bolt is passed through the first through hole and the second through hole.

3. The foldable backrest stool according to claim 1, characterized in that a positioning notch capable of accommodating the locking portion is provided on the first blocking portion.

4. The foldable backrest stool according to claim 1 is characterized in that a guide groove is provided on the locking portion, and when the first joint component and the second joint component rotate relatively, the end of the first blocking portion is accommodated in the guide groove and slides along the guide groove.

5. The foldable backrest stool according to claim 1, characterized in that the stool frame comprises:

First bracket;

a second bracket, the second bracket being arranged at an interval with the first bracket;

A first connecting rod frame, wherein one side of the first connecting rod frame is rotatably connected to the first bracket, and the other side of the first connecting rod frame is rotatably connected to the second bracket;

A second connecting rod frame, one side of the second connecting rod frame is rotatably connected to the first bracket, the other side of the second connecting rod frame is rotatably connected to the second bracket, and the middle part of the second connecting rod frame is rotatably connected to the middle part of the first connecting rod frame.

6. The foldable backrest stool according to claim 5 is characterized in that the first connecting rod frame includes a first rod frame and a first support rod, one side of the first rod frame is rotatably connected to the first bracket, the other side of the first rod frame is rotatably connected to one end of the first support rod, and the other end of the first support rod is rotatably connected to the second bracket; the second connecting rod frame includes a second rod frame and a second support rod, one side of the second rod frame is rotatably connected to the second bracket, the other side of the second rod frame is rotatably connected to one end of the second support rod, the other end of the second support rod is rotatably connected to the first bracket, and the first rod frame and the second rod frame are rotatably connected.