Portable lifting folding chair
By setting adjustment holes and adjustment crossbars in the portable lifting folding chair, the problem of the lack of lifting adjustment of the existing folding chairs is solved, and multi-speed height adjustment and portability are achieved, improving the user experience and application range.
Patent Information
- Application Number
- CN202510816559.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-08-12
AI Technical Summary
The existing folding chairs lack lifting and adjustment functions and cannot adapt to the high demands of different users, affecting the comfort and practicality of use, limiting the scope of application.
A portable lifting and folding chair is designed. By setting adjustment holes and adjustment crossbars on the support rods, the multi-angle adjustment of the seat frame is realized, and combined with the limiting structure of the chair back frame, it ensures that the overall storage space after folding is small.
It realizes multi-speed height adjustment of the seat, improves the comfort of use, is easy to carry and store, and expands the application scenarios.
Smart Images
Figure CN120458369A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of furniture products, in particular to a portable lifting and folding chair. Background Art
[0002] In the fast-paced world of modern life, folding chairs, thanks to their easy storage and portability, are widely used in a variety of scenarios, such as camping, picnics, and family gatherings, and are highly favored by consumers. Existing folding chairs are primarily designed around their folding function. Their foldable structure allows them to shrink when not in use, making them easy to store and transport, effectively saving space and meeting users' basic demand for portable furniture.
[0003] However, the folding chairs currently on the market have relatively simple functions, only having a folding function and lacking a lifting and adjustment function. This defect brings many inconveniences during actual use. For example, in outdoor camping scenarios, the ground is usually uneven, and different users have different requirements for seat height. A folding chair with a fixed height cannot ensure that every user can be in a comfortable sitting position, affecting the user experience; in indoor temporary meetings or activities, the heights of the participants vary greatly, and folding chairs of a uniform height cannot be adapted to people of different heights. Long-term use can easily lead to fatigue, reducing the comfort and practicality of use. In addition, in some special usage scenarios, such as painting, handicrafts, etc., users may need to flexibly adjust the seat height according to the operating height. Existing folding chairs do not have a lifting function and cannot meet such diverse usage needs, which greatly limits the application scope of folding chairs. Therefore, the development of a folding chair that has both a folding function and height adjustment has become the key to solving the problems of the existing technology. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a portable lifting folding chair with a simple structure and convenient folding, lifting and adjusting in view of the above-mentioned existing technical status.
[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a portable lifting folding chair, comprising a seat frame and a seat back frame installed on the seat frame, the seat frame comprising a first support frame and a second support frame connected to each other in an X-shaped structure in use state, the first support frame being arranged on the inner side of the second support frame, the first support frame comprising a first left support rod, a first right support rod and a first top cross bar, the second support frame comprising a second left support rod, a second right support rod and a second top cross bar, the first left support rod being rotatably connected to the second left support rod, and the first right support rod being rotatably connected to the second right support rod, characterized in that at least two adjustment holes are opened on the inner side walls of the first left support rod and the first right support rod along the length direction of the rod body, the adjustment hole being arranged above the rotation connection point of the first support frame and the second support frame, and further comprising an adjustment cross bar and a seat cloth, the two ends of the adjustment cross bar being respectively inserted into the adjustment holes on the corresponding sides, the first side of the seat cloth being fixed on the adjustment cross bar, and the second side extending backward after passing around the first top cross bar and being fixed to the second top cross bar.
[0006] Preferably, the first support frame is arranged obliquely downward from front to back, and the second support frame is arranged obliquely downward from back to front.
[0007] In order to avoid interference between the seat back frame and the seat frame in the folded state, the seat back frame is arranged on the outside of the second support frame, and the lower part of the seat back frame is rotatably connected to the upper part of the second support frame.
[0008] In order to limit the opening angle of the seat back frame, a limiting member for limiting the seat frame is protruded from the outer side of the second support frame, and the limiting member is arranged above the rotation connection point between the seat back frame and the second support frame.
[0009] In order to enable the chair to be adjusted to a plurality of different lifting heights, the number of the adjusting holes is 3 to 6 and they are distributed at intervals.
[0010] In order to make the folded chair lie on the same folding surface and reduce the packaging volume and storage space, in the folded state, the second support frame is flipped to the outside of the first support frame, the backrest frame is flipped to the outside of the second support frame, and the first support frame, the second support frame and the backrest frame are on the same folding surface.
[0011] To prevent the seat frame from falling apart when folded, a seat back fabric is mounted on the seat back frame. When folded, the bottom support legs of the first and second support frames are tilted over to rest on the seat back fabric. This arrangement acts as a support and limiter, keeping the seat frame in the same folded position on the seat back frame.
[0012] The adjustment crossbar can have various structures. Preferably, the adjustment crossbar includes an outer sleeve and an inner telescopic rod that can move axially relative to the outer sleeve. The inner end of the inner telescopic rod is disposed within the outer sleeve, and the outer end of the inner telescopic rod extends axially beyond the outer sleeve. The outer end of the outer sleeve is inserted into the adjustment hole on the corresponding side, and the outer end of the inner telescopic rod is inserted into the adjustment hole on the corresponding side. This arrangement allows the adjustment crossbar to be removed from and installed on the first support frame by adjusting the inner telescopic rod, making operation very convenient.
[0013] As a preferred solution, an elastic member is provided between the inner end of the inner telescopic rod and the outer sleeve. The elastic member can be of various types, such as a spring or a limit spring sheet.
[0014] As another preferred embodiment, the outer tube has an axial strip hole formed in its wall, the axial strip hole opening at the end of the outer tube, an L-shaped stopper hole formed in the middle of the axial strip hole along the circumference of the outer tube, and the bending direction of the L-shaped stopper hole is toward the end of the outer tube. The inner telescopic rod has a stopper block protruding from its wall that can move within the axial strip hole and the L-shaped stopper hole. With this arrangement, the inner telescopic rod can be axially moved relative to the outer tube by moving the stopper block within the stopper slot, thereby enabling installation and removal of the adjustment cross bar.
[0015] Compared with the prior art, the advantages of the present invention are that at least two adjustment holes are opened on the inner side walls of the first left support rod and the first right support rod of the seat frame of the portable lifting folding chair along the length direction of the rod body, and the two ends of the adjusting cross bar are respectively inserted into the adjustment holes on the corresponding sides. The first side of the seat cloth is fixed on the adjusting cross bar, and the second side extends backward after bypassing the first top cross bar and is fixed on the second top cross bar. By installing the adjusting cross bar in the adjustment holes at different heights, the rotation angle between the first support frame and the second support frame of the seat frame can be changed, and the lifting and lowering adjustment of the chair can be realized with the synchronous adjustment of the seat cloth, so that the seat is in different height gears. The adjustment is very convenient. When folding, the first support frame and the second support frame can be flipped to the same folding surface. It is easy to carry, has a small storage space, and is convenient for packaging and transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of a portable lift-folding chair according to embodiment 1 of the present invention (first gear);
[0017] Figure 2 This is a structural diagram of a portable lift-folding chair according to the first embodiment of the present invention (second gear);
[0018] Figure 3 This is a structural diagram of a portable lift-folding chair according to embodiment 1 of the present invention (three gears);
[0019] Figure 4This is a structural diagram of a portable lift-folding chair according to embodiment 1 of the present invention (four gears);
[0020] Figure 5 This is a structural diagram of a portable lift-folding chair according to embodiment 1 of the present invention (five gears);
[0021] Figure 6 for Figure 5 The structure diagram of the lifting folding chair shown is after removing the seat fabric and the back fabric;
[0022] Figure 7 This is a structural diagram of a portable lift-folding chair according to a first embodiment of the present invention (folded state);
[0023] Figure 8 Schematic diagram of the installation structure of the adjustment cross bar according to the first embodiment of the present invention;
[0024] Figure 9 This is a schematic structural diagram of another adjusting cross bar according to the first embodiment of the present invention;
[0025] Figure 10 This is a schematic structural diagram of another adjusting cross bar according to the first embodiment of the present invention;
[0026] Figure 11 This is a structural diagram of a portable lift-folding chair according to the second embodiment of the present invention (four gears). DETAILED DESCRIPTION
[0027] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0028] like Figure 1 As shown, the portable lift folding chair of this embodiment includes a seat frame 1 and a chair back frame 2 mounted on the seat frame 1. The seat frame 1 includes a first support frame 11 and a second support frame 12 connected to each other in an X-shaped structure in the use state. Figure 1 The direction indicated by the middle arrow A is right, the first support frame 11 is arranged obliquely downward from front to back, and the second support frame 12 is arranged obliquely downward from back to front.
[0029] The first support frame 11 is disposed inside the second support frame 12. The first support frame 11 includes a first left support rod 111, a first right support rod 112, a first top crossbar 113, and a bottom crossbar 115, i.e., the first support frame 11 is square-shaped. The second support frame 12 includes a second left support rod 121, a second right support rod 122, and a second top crossbar 123, i.e., the second support frame is U-shaped. Foot covers 125 are mounted at the bottoms of the second left support rods 121 and the second right support rods 122. The first left support rod 111 is rotatably connected to the second left support rod 121, and the first right support rod 112 is rotatably connected to the second right support rod 122.
[0030] The U-shaped seat back frame 2 is mounted on the outside of the second support frame 12. The lower portion of the seat back frame 2 is pivotally connected to the upper portion of the second support frame 12. The seat back fabric 5 is mounted on the seat back frame 2. A stopper 124 is provided on the outside of the second support frame 12 to limit the position of the seat frame 1. The stopper 124 is located above the pivotal connection point B between the seat back frame 2 and the second support frame 12.
[0031] At least two adjustment holes 114 are provided on the inner side walls of the first left support rod 111 and the first right support rod 112 along the length direction of the rod body. In this embodiment, five adjustment holes 114 are provided on the first left support rod 111 and the first right support rod 112, and are evenly distributed at intervals. The adjustment holes 114 are provided above the rotation connection point C between the first support frame 11 and the second support frame 12, and each adjustment hole 114 corresponds to an adjustment gear.
[0032] The two ends of the adjustment crossbar 3 are respectively inserted into the adjustment holes 114 on the corresponding sides. The first side of the seat cloth 4 is fixed on the adjustment crossbar 3, and the second side passes around the first top crossbar 113 and extends backward and is fixed on the second top crossbar 123. Figure 1 As shown, the adjustment crossbar 3 is inserted into the adjustment hole 114 at the highest position. At this time, the distance between the first top crossbar 113 and the second top crossbar 123 is the largest, and the chair is in the first gear, that is, the lowest gear, that is, the seat height is at the lowest position.
[0033] like Figure 2 As shown, the adjustment cross bar 3 is inserted into the adjustment hole 114 at the second highest position. At this time, the distance between the first top cross bar 113 and the second top cross bar 123 becomes smaller, the chair is in the second gear, and the seat height increases.
[0034] like Figure 3 As shown, the adjustment crossbar 3 is Figure 2 Adjust one gear down on the basis of the chair, the chair is in the third gear, and the seat height continues to rise; Figure 4 As shown, the adjustment crossbar 3 is Figure 3 Adjust one gear down based on the chair, the chair is in gear 4, and the seat height continues to rise. Figure 5 and Figure 6 As shown, the adjustment crossbar 3 is Figure 4 On the basis of , adjust one gear downward, the chair is in gear five. At this time, the distance between the first top cross bar 113 and the second top cross bar 123 is the smallest, and the seat height rises to the highest position.
[0035] Before the chair is folded, it can be in different gears. Figure 7As shown, before folding, the chair is in the first gear. When folding, the second support frame 12 flips forward. After folding, the second support frame 12 flips to the outside of the first support frame 11, the second top crossbar 123 is located outside the first top crossbar 113, and the backrest frame 2 flips to the outside of the second support frame 12. The first support frame 11, the second support frame 12 and the backrest frame 2 are on the same folding surface. In addition, the bottom support feet of the first support frame 11 and the second support frame 12 flip to the area where the backrest fabric 5 is located and rest on the backrest fabric 5. At this time, the backrest fabric 5 plays a supporting and limiting role, limiting the seat frame 1 to the same folding surface as the backrest frame 2. The folded chair is flat as a whole, with less storage and packaging space, and is easy to carry.
[0036] like Figures 8 to 10 As shown, the adjustment cross bar 3 of this embodiment includes an outer sleeve 31 and an inner telescopic rod 32 that can move axially relative to the outer sleeve. The inner end of the inner telescopic rod 32 is arranged inside the outer sleeve 31, and the outer end of the inner telescopic rod 32 extends axially out of the outer sleeve 31. The outer end of the outer sleeve 31 is inserted into the adjustment hole 114 on the corresponding side, and the outer end of the inner telescopic rod 32 is inserted into the adjustment hole 114 on the corresponding side.
[0037] like Figure 8 As shown, a spring 33 is disposed between the inner end of the inner telescopic rod 32 and the outer sleeve 31. When the spring 33 is compressed, the inner telescopic rod 32 moves axially inward relative to the outer sleeve 31. When the spring 33 is reset, the inner telescopic rod 32 moves axially outward relative to the outer sleeve 31. When the adjustment crossbar 3 is inserted into the adjustment hole 114, the spring 33 is in the reset position but still in the compressed state. Under the action of the spring 33, the adjustment crossbar 3 is inserted into the adjustment hole 114.
[0038] like Figure 9 As shown, a limiting spring piece 34 is provided between the inner end of the inner telescopic rod 32 and the outer sleeve 31. When the adjusting cross bar 3 needs to be disengaged from the adjusting hole 114, sufficient external force is applied to the inner telescopic rod 32, and the limiting spring piece 34 is disengaged from the outer sleeve 31, so that the inner telescopic rod 32 can move axially relative to the outer sleeve 31; when the adjusting cross bar 3 is inserted into the adjusting hole 114, the limiting spring piece is limited on the outer sleeve 31, preventing the inner telescopic rod 32 from moving axially relative to the outer sleeve 31. The specific structure of the limiting spring piece 34 is an existing conventional structure and will not be described in detail here.
[0039] like Figure 10As shown, an axial strip hole 311 is formed on the wall of the outer sleeve 31 of this embodiment. The axial strip hole 311 is opened at the end of the outer sleeve 31. An L-shaped limiting hole 312 is formed in the middle of the axial strip hole 311 along the circumference of the outer sleeve 31, and the bending direction of the L-shaped limiting hole 312 is toward the end of the outer sleeve 31. A limiting block 321 is protruded from the wall of the inner telescopic rod 32 and can move within the axial strip hole 311 and the L-shaped limiting hole 312. When the adjusting cross bar 3 is inserted into the adjusting hole 114, the limiting block 321 is snapped into the L-shaped limiting hole 312. When the adjusting cross bar 3 needs to be disengaged from the adjusting hole 114, the limiting block 321 first disengages from the L-shaped limiting hole 312 and then slides into the axial strip hole 311, thereby achieving axial telescopic movement of the inner telescopic rod 32.
[0040] Example 2:
[0041] like Figure 11 As shown, in this embodiment, wide foot covers 126 are installed at the bottom of the second left support rod 121 and the second right support rod 122. The wide foot covers 126 have a flat contact surface with the ground, and the contact surface is large, making the chair more stable. The remaining structure of this embodiment is the same as that of the first embodiment and will not be described in detail here.
[0042] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
Claims
1. A portable lifting folding chair, comprising a seat frame (1) and a chair back frame (2) mounted on the seat frame (1), wherein the seat frame (1) comprises a first support frame (11) and a second support frame (12) which are connected to each other in an X-shaped structure in a use state, wherein the first support frame (11) is arranged on the inner side of the second support frame (12), the first support frame (11) comprises a first left support rod (111), a first right support rod (112) and a first top cross bar (113), and the second support frame (12) comprises a second left support rod (121), a second right support rod (122) and a second top cross bar (123), the first left support rod (111) is rotatably connected to the second left support rod (121), and the first right support rod (112) is rotatably connected to the second right support rod (122), and the chair is characterized in that: At least two adjustment holes (114) are provided on the inner side walls of the first left support rod (111) and the first right support rod (112) along the length direction of the rod body. The adjustment holes (114) are arranged above the rotation connection point between the first support frame (11) and the second support frame (12). The seat fabric (4) also includes an adjustment cross bar (3) and a seat fabric (4). The two ends of the adjustment cross bar (3) are respectively inserted into the adjustment holes (114) on the corresponding sides. The first side of the seat fabric (4) is fixed on the adjustment cross bar (3), and the second side extends backward after bypassing the first top cross bar (113) and is fixed on the second top cross bar (123).
2. The portable lift-folding chair according to claim 1, characterized in that: The first support frame (11) is arranged obliquely downward from front to back, and the second support frame (12) is arranged obliquely downward from back to front.
3. The portable lift-folding chair according to claim 1, characterized in that: The chair back frame (2) is arranged on the outside of the second support frame (12), and the lower part of the chair back frame (2) is rotatably connected to the upper part of the second support frame (12).
4. The portable lift-folding chair according to claim 3, characterized in that: A limiting member (124) for limiting the position of the seat frame (1) is protruded from the outer side of the second support frame (12), and the limiting member (124) is arranged above the rotation connection point between the seat back frame (2) and the second support frame (12).
5. The portable lift-folding chair according to claim 1, characterized in that: There are 3 to 6 regulating holes (114) distributed at intervals.
6. The portable lift-folding chair according to claim 1, characterized in that: In the folded state, the second support frame (12) is flipped to the outside of the first support frame (11), the seat back frame (2) is flipped to the outside of the second support frame (12), and the first support frame (11), the second support frame (12) and the seat back frame (2) are on the same folding surface.
7. The portable liftable folding chair according to claim 6, characterized in that: A seat back fabric (5) is mounted on the seat back frame (2); in a folded state, the bottom support legs of the first support frame (11) and the second support frame (12) are flipped to the area where the seat back fabric (5) is located and rest on the seat back fabric (5).
8. The portable lift-folding chair according to any one of claims 1 to 7, characterized in that: The adjusting cross bar (3) includes an outer sleeve (31) and an inner telescopic rod (32) that can move axially relative to the outer sleeve, the inner end of the inner telescopic rod (32) is arranged inside the outer sleeve (31), the outer end of the inner telescopic rod (32) axially extends out of the outer sleeve (31), the outer end of the outer sleeve (31) is inserted into the adjusting hole (114) on the corresponding side, and the outer end of the inner telescopic rod (32) is inserted into the adjusting hole (114) on the corresponding side.
9. The portable lift-folding chair according to claim 8, characterized in that: An elastic member is provided between the inner end of the inner telescopic rod (32) and the outer sleeve (31).
10. The portable lift-folding chair according to claim 8, characterized in that: An axial strip hole (311) is formed on the tube wall of the outer tube (31), and the axial strip hole (311) is formed with an opening at the end of the outer tube (31). An L-shaped limiting hole (312) is formed in the middle of the axial strip hole (311) along the circumference of the outer tube (31), and the bending direction of the L-shaped limiting hole (312) is toward the end of the outer tube (31). A limiting block (321) that can move in the axial strip hole (311) and the L-shaped limiting hole (312) is convexly provided on the rod wall of the inner telescopic rod (32).