Foldable back stool

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

Technical Field

[0001] The invention relates to the technical field of outdoor products, in particular to a backrest stool. Background Art

[0002] In some outdoor activities, such as fishing and picnics, backrest stools are often used. Backrest stools are usually set to a foldable structure. Among them, the backrest frame of the backrest stool can be rotated and folded relative to the stool body frame. When the backrest stool is unfolded, the backrest frame is generally locked to the stool body frame by tightening bolts. For this structure, the backrest stool needs to be folded and unfolded by turning the bolts, which is inconvenient to operate. Summary of the invention

[0003] The present invention is intended to solve at least one of the technical problems in the prior art. To this end, the present invention proposes a foldable backrest stool, which is convenient to fold and unfold.

[0004] A foldable stool with backrest according to an embodiment of the present invention comprises: a stool body frame; a backrest frame, wherein the backrest frame is located on one side of the stool body frame; a pivot assembly, wherein the pivot assembly comprises a first joint, a second joint and a snap structure, wherein 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, wherein 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, wherein the first joint has a connecting portion and a locking portion, wherein one side of the second joint has an installation cavity for accommodating the connecting portion and a locking cavity for accommodating the locking portion, wherein the snap structure enables the first joint to move along the positioning axis so as to enable the locking portion to move out of the locking cavity.

[0005] The foldable backrest stool according to the embodiment of the present invention has at least the following beneficial effects: the first joint component and the second joint component can be locked by the snap button structure to limit the relative rotation of the first joint component and the second joint component, so that the backrest frame can be locked in an unfolded or folded position relative to the stool body frame; the snap button structure is unlocked by pressing and moving, and its operation is relatively convenient, making the unfolding and folding operations of the backrest stool relatively convenient.

[0006] According to some embodiments of the present invention, the pivot assembly further comprises an axial rod member disposed on the first joint member, the axial rod member passes through the second joint member and can move along the positioning axis relative to the second joint member, and at least one of the first joint member and the second joint member can rotate relative to the axial rod member.

[0007] According to some embodiments of the present invention, 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.

[0008] According to some embodiments of the present invention, the snap structure includes a snap member and an elastic member, the snap member is located on the other side of the second joint member, the snap member is connected to the shaft member, and the elastic member is disposed between the snap member and the second joint member.

[0009] According to some embodiments of the present invention, the shaft rod 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 passes through the first through hole and the second through hole.

[0010] According to some embodiments of the present invention, a height of the first blocking portion is smaller than a height of the second blocking portion.

[0011] According to some embodiments of the present invention, a positioning notch capable of accommodating the locking portion is provided on the first blocking portion.

[0012] According to some embodiments of the present invention, a guide groove is provided on the locking portion, and when the first joint component and the second joint component rotate relative to each other, the end of the first blocking portion is accommodated in the guide groove and slides along the guide groove.

[0013] According to some embodiments of the present invention, the stool frame includes: a first bracket; a second bracket, the second bracket is arranged at an interval with the first bracket; a first connecting rod frame, one side of the first connecting rod frame is rotatably connected to the first bracket, and the other side 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, and the other side 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.

[0014] According to some embodiments of the present invention, 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.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural diagram of an embodiment of a foldable backrest stool of the present invention;

[0018] Figure 2 for Figure 1 An exploded view of the foldable backrest stool shown in ;

[0019] Figure 3 for Figure 1 A cross-sectional view of the pivot assembly shown in ;

[0020] Figure 4 for Figure 1 An exploded view of the pivot assembly shown in ;

[0021] Figure 5 is an exploded view of another embodiment of the pivot assembly;

[0022] Figure 6 for Figure 5 The structural diagram of the first joint component is shown in .

[0023] Reference numerals:

[0024] Stool frame 100, first bracket 110, second bracket 120, first connecting rod frame 130, first rod frame 131, first support rod 132, second connecting rod frame 140, second rod frame 141, second support rod 142, backrest frame 200, pivot assembly 300, first joint member 310, connecting portion 311, locking portion 312, guide groove 313, second joint member 320, first blocking portion 321, second blocking portion 322, installation cavity 323, locking cavity 324, positioning notch 325, snap structure 330, snap member 331, elastic member 332, shaft member 340, positioning axis a DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] like Figures 1 to 6 As shown, the foldable backrest stool according to an embodiment of the present invention comprises a stool body frame 100, a backrest frame 200 and a pivot assembly 300, wherein the backrest frame 200 is located on one side of the stool body frame 100. Support cloth or support plate (not shown in the figure) is arranged on the stool body frame 100 and the backrest frame 200, so that the user can sit down and lie down.

[0030] The pivot assembly 300 includes a first joint component 310, a second joint component 320 and a snap structure 330. The first joint component 310 is arranged on the backrest frame 200, and the second joint component 320 is arranged on the stool frame 100. The first joint component 310 and the second joint component 320 are movably connected so that the first joint component 310 and the second joint component 320 can rotate relative to each other around the positioning axis a. The snap structure 330 is arranged at the connection between the first joint component 310 and the second joint component 320. The first joint component 310 has a connecting portion 311 and a locking portion 312. The width of the projection of the connecting portion 311 along the direction of the positioning axis a is greater than the width of the projection of the locking portion 312 along the direction of the positioning axis a. One side of the second joint component 320 has an installation cavity 323 for accommodating the connecting portion 311 and a locking cavity 324 for accommodating the locking portion 312. The snap structure 330 can move the first joint component 310 along the positioning axis so that the locking portion 312 moves out of the locking cavity 324.

[0031] During the process of unfolding and folding the backrest stool, the backrest frame 200 rotates relative to the stool body frame 100, and the first joint component 310 also rotates relative to the second joint component 320. The first joint component 310 and the second joint component 320 can be locked by the snap button structure 330 to limit the relative rotation of the first joint component 310 and the second joint component 320, so that the backrest frame 200 can be locked in the unfolded or folded position relative to the stool body frame 100. The snap button structure 330 is unlocked by pressing and moving, and its operation is relatively convenient, making the unfolding and folding operation of the backrest stool relatively convenient.

[0032] In some embodiments, the first joint component 310 may also be disposed on the stool body frame 100 , and the second joint component 320 may be disposed on the backrest frame 200 .

[0033] The pivot assembly 300 further includes an axle member 340, which is disposed on the first joint member 310 and is also disposed through the second joint member 320. The axle member 340 can move relative to the second joint member 320 along the positioning axis a, and the axis of the axle member 340 coincides with the positioning axis a. At least one of the first joint member 310 and the second joint member 320 can rotate relative to the axle member 340.

[0034] For example, in one embodiment, the shaft member 340 is configured as a connecting bolt, a first through hole is provided on the first joint member 310, and a second through hole is provided on the second joint member 320. The connecting bolt passes 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.

[0035] In some embodiments, the shaft member 340 can also be configured as a rivet, which is passed through the first through hole and the second through hole, and a convex edge is formed at one end of the rivet to prevent the rivet from detaching from the first joint member 310 when moving toward the second joint member 320 .

[0036] In some embodiments, the shaft component 340 may be fixedly connected to the first joint component 310 , and the shaft component 340 may move and rotate relative to the second joint component 320 .

[0037] Reference Figure 2 and Figure 4 A first blocking portion 321 and a second blocking portion 322 are spaced apart on one side of the second joint component 320 , and an installation cavity 323 and a locking cavity 324 are formed between the first blocking portion 321 and the second blocking portion 322 . The installation cavity 323 accommodates the connecting portion 311 , and the locking cavity 324 accommodates the locking portion 312 .

[0038] Since the first blocking portion 321 and the second blocking portion 322 are arranged at intervals, two locking cavities 324 are formed on the second joint component 320. When the backrest stool is in the unfolded state, the locking portion 312 is located in one of the locking cavities 324, which can limit the rotation of the backrest frame 200; when the backrest stool needs to be folded, the first joint component 310 is pushed to move along the positioning axis a so that the locking portion 312 moves out of the locking cavity 324, and then the backrest frame 200 and the first joint component 310 are rotated, and when the locking portion 312 moves to a position corresponding to the other locking cavity 324, the locking portion 312 is placed in the other locking cavity 324. In this way, the backrest frame 200 can be locked in the unfolded or folded position relative to the stool body frame 100 through the above structure.

[0039] The snap structure 330 includes a snap member 331 and an elastic member 332. The snap member 331 is located at the other side of the second joint member 320 and is connected to the shaft member 340. The elastic member 332 is disposed between the snap member 331 and the second joint member 320. In this way, when the backrest is in the unfolded and folded state, the elastic member 332 can keep the connecting portion 311 in the installation cavity 323; by pressing the snap member 331, the shaft member 340 can be pushed to move, so that the connecting portion 311 has space to move out of the locking cavity 324, and the first joint member 310 can rotate relative to the second joint member 320.

[0040] 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 can also be configured as a spring sheet, a rubber block, or other structures.

[0041] In some embodiments, the snap button structure 330 can also be configured as a cam, which is rotatably connected to the shaft member 340. When the cam is rotated, the shaft member 340 can be driven to move along the positioning axis a.

[0042] The height of the first blocking portion 321 is smaller than the height of the second blocking portion 322, so that the first joint 310 can only rotate along the first blocking portion 321, and when the locking portion 312 moves to abut the second blocking portion 322, the locking portion 312 is at a position opposite to the locking cavity 324, which is convenient for the user to judge whether the backrest frame 200 is rotated in place. In the direction along the positioning axis a, the distance difference between the end surface of the first blocking portion 321 and the bottom surface of the installation cavity 323 is the height of the first blocking portion 321; the distance difference between the end surface of the second blocking portion 322 and the bottom surface of the installation cavity 323 is the height of the second blocking portion 322.

[0043] Reference Figure 5 In some embodiments, the first blocking portion 321 is provided with a positioning notch 325 that can accommodate the locking portion 312. When the user needs to lie on the backrest stool, the locking portion 312 can be adjusted to be located in the positioning notch 325.

[0044] Reference Figure 6 In some embodiments, the locking portion 312 has a guide groove 313 that can accommodate the first blocking portion 321. When the locking portion 312 moves out of the locking cavity 324, the end of the first blocking portion 321 can be placed in the guide groove 313 when the first joint 310 is rotated, and the end of the first blocking portion 321 slides along the guide groove 313 to limit the shaking of the first joint 310 when it rotates.

[0045] Reference Figure 1 and Figure 2The stool frame 100 includes a first bracket 110, a second bracket 120, a first connecting rod frame 130 and a second connecting rod frame 140. The first bracket 110 and the second bracket 120 are arranged at intervals. One side of the first connecting rod frame 130 is rotatably connected to the first bracket 110 through a pin shaft, and the other side is rotatably connected to the second bracket 120 through a pin shaft. One side of the second connecting rod frame 140 is rotatably connected to the first bracket 110 through a pin shaft, and the other side is rotatably connected to the second bracket 120 through a pin shaft, and the middle part of the second connecting rod frame 140 is rotatably connected to the middle part of the first connecting rod frame 130 through a pin shaft. In this way, the stool frame 100 can be folded.

[0046] The first connecting rod frame 130 includes a first rod frame 131 and a first support rod 132, one side of the first rod frame 131 is rotatably connected to the first bracket 110, the other side of the first rod frame 131 is rotatably connected to one end of the first support rod 132 through a pin, and the other end of the first support rod 132 is rotatably connected to the second bracket 120. The second connecting rod frame 140 includes a second rod frame 141 and a second support rod 142, one side of the second rod frame 141 is rotatably connected to the second bracket 120, the other side of the second rod frame 141 is rotatably connected to one end of the second support rod 142 through a pin, the other end of the second support rod 142 is rotatably connected to the first bracket 110, and the first rod frame 131 and the second rod frame 141 are rotatably connected.

[0047] In some embodiments, the first rod frame 131 and the first support rod 132 may be fixedly connected, and the second rod frame 141 and the second support rod 142 may be fixedly connected. Alternatively, the first support rod 132 and the second support rod 142 are not provided, and the two sides of the first rod frame 131 are directly connected to the first bracket 110 and the second bracket 120 in a one-to-one corresponding rotation, and the two sides of the second rod frame 141 are directly connected to the first bracket 110 and the second bracket 120 in a one-to-one corresponding rotation.

[0048] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A foldable backrest stool, characterized in that: include: 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 passes through the second joint member and can move along the positioning axis relative to the second joint member, and at least one of the first joint member and the second joint member can rotate 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, characterized in that: 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 passes through the first through hole and the second through hole.

3. The foldable backrest stool according to claim 1, characterized in that: The first blocking portion is provided with a positioning notch which can accommodate the locking portion.

4. The foldable backrest stool according to claim 1, characterized in that: The locking portion is provided with a guide groove, 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, 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.

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