CN114652122A - Foldable support frame and foldable chair - Google Patents

Abstract

A foldable support frame and a foldable chair comprise a first side support, a second side support and a foldable cross frame, wherein the first side support comprises a first vertical frame and a first sliding piece, the second side support comprises a second vertical frame and a second sliding piece, the foldable cross frame comprises a transverse first support frame and a transverse second support frame which are arranged in a left-right mode and are rotatably arranged between the end parts, transverse third support frames and transverse fourth support frames which are arranged in a cross mode and are positioned below the transverse first support frame and the transverse second support frame, and a first traction rod and a second traction rod. The transverse first strut, the transverse second strut, the transverse third strut and the first vertical frame form a four-bar linkage mechanism, the transverse first strut, the transverse second strut, the transverse fourth strut and the second vertical frame also form a four-bar linkage mechanism, the two four-bar linkage mechanisms share the transverse first strut, the transverse second strut and a turning point between the transverse first strut and the transverse second strut, when the transverse first strut and the transverse second strut are relatively unfolded and stabilized, the two four-bar linkage mechanisms respectively form a stable triangular mechanism, and respectively unfold and stabilize the first side bracket and the second side bracket through the left first traction rod, the right first traction rod and the second traction rod.

Description

Foldable support frame and foldable chair

Technical Field

The invention belongs to the field of leisure furniture, and particularly relates to a foldable support frame and a foldable chair.

Background

Modern people have ever-increasing living standard, but living pressure and working pressure are increasing. More and more people develop outdoor activities with family and friends on weekends, relax mood, enjoy wind and suny sunshine barbecue. The folding chair adds more beautiful enjoyment to outdoor life.

For example, in patent publication No. CN 209186064U, a folding swing chair is disclosed, in which a support frame comprises two sets of vertical tubes connected by cross tubes, the distance between the vertical tubes is changed by scissors-like opening and closing between the cross tubes, and the vertical tubes are fixed by sliding members to keep stable structure and play a supporting role, each sliding member is hinged with a support tube, the bottom end of the support tube can be in contact with the ground, the support tube is hinged with a stabilizing tube, the position of the stabilizing tube is fixed as the support tube cannot swing relative to the sliding member due to the limitation of the stabilizing tube, the bottom ends of the vertical tubes and the support tube can be in contact with the ground, and the chair is detachably hung on the support frame. The structure is folded and unfolded by sliding the sliding part along the vertical pipe, and is convenient to store after being folded.

Also disclosed in application publication No. CN 108260976A is a folding chair and a folding support thereof, two supporting mechanisms, a linkage group connected between the two supporting mechanisms, the linkage group comprises two linkage rods which are mutually crossed and hinged through a first hinge shaft; the two support mechanisms respectively comprise an upright rod, a sliding sleeve, a connector and two inclined support mechanisms; the upper end of one linkage rod is hinged with the sliding sleeve, the other linkage rod is hinged with the lower end of the vertical rod, the hinge point is located at the lower part of the intersection point; two of the bracing mechanisms are arranged in mirror image with respect to the upright post, the inclined strut mechanism comprises an inclined strut and an underframe rod, the upper end of the inclined strut is hinged with the sliding sleeve, the lower end of the inclined strut is hinged to one end of the bottom frame rod, the other end of the bottom frame rod is hinged to the connector, and the lower end of the linkage rod is hinged to the connector through a seventh hinge shaft.

Disclosure of Invention

The invention provides a foldable support frame.

In order to solve the technical problems, the invention adopts the technical scheme that: a foldable support frame is provided with an unfolding position and a folding position and comprises a first side support and a second side support which are respectively positioned on the left side and the right side, and a foldable transverse frame which is arranged between the first side support and the second side support and can be folded, wherein the first side support comprises a first vertical frame which is vertically arranged during use and a first slide piece which is arranged on the first vertical frame in a sliding manner along the vertical direction of the first vertical frame, the second side support comprises a second vertical frame which is vertically arranged during use and a second slide piece which is arranged on the second vertical frame in a sliding manner along the vertical direction of the second vertical frame, the foldable transverse frame comprises a transverse support frame and a transverse support frame which are arranged on the left side and the right side and are rotatably arranged between the end parts, a transverse support frame and a transverse four support frame which are arranged in a crossing manner and are positioned below the transverse support frame and the transverse support frame, and the other end part of the transverse support frame is connected with the first vertical frame through a transverse five-shaft pivot, the folding cross frame further comprises a first traction rod and a second traction rod which are respectively positioned on the left side and the right side, the upper end of the first traction rod is rotatably connected with the first sliding piece, the upper end of the second traction rod is rotatably connected with the second sliding piece, the lower end of the first traction rod and the lower end of the second traction rod are rotatably connected with the first cross frame and the second sliding piece, respectively, or respectively connected with the third cross frame and the second cross frame, The transverse four-strut frames are connected in a rotating mode.

In some embodiments, the transverse third bracket is provided with a third slide piece in a sliding manner along the length direction of the transverse third bracket, the transverse fourth bracket is provided with a fourth slide piece in a sliding manner along the length direction of the transverse fourth bracket, and the third slide piece and the fourth slide piece are connected through a transverse two-axis pivot.

In some embodiments, a one-way limiting mechanism is disposed between the first cross brace and the second cross brace, and the one-way limiting mechanism prevents the rotation axes of the first cross brace and the second cross brace from moving downward when in the unfolded position, and when the foldable support frame is in the unfolded position, the rotation axis between one end of the first cross brace and one end of the second cross brace is located below a connecting line between the axes of the five cross axles and the six cross axles and/or located below a connecting line between the axes of the three cross axles and the four cross axles and located above a crossing point of the third cross brace and the fourth cross brace.

In some embodiments, when the foldable support is in the deployed position, a line between the five lateral axes and the six lateral axes is longer than a line between the seven lateral axes and the eight lateral axes.

In some embodiments, the cross-frame end is pivotally connected to the cross-frame end by a cross-axis.

In some embodiments, the first slider is located above the five-axis cross shaft, the second slider is located above the six-axis cross shaft, the lower end of the first drawbar is pivotally connected to the first cross frame via a nine-axis cross shaft, the lower end of the second drawbar is pivotally connected to the second cross frame via a ten-axis cross shaft, or the first slider is located below the five-axis cross shaft, the second slider is located below the six-axis cross shaft, the lower end of the first drawbar is pivotally connected to the third cross frame via a nine-axis cross shaft, and the lower end of the second drawbar is pivotally connected to the fourth cross frame via a ten-axis cross shaft.

In some embodiments, the first side frame further comprises a first side front leg and a first side rear leg pivotally connected to the lower end of the first upright frame, respectively, a first side front brace and a first side rear brace pivotally connected to the first slider, respectively, at an upper end thereof, the lower end of the first side front brace pivotally connected to the first side front leg, the lower end of the first side rear brace pivotally connected to the first side rear leg, the second side frame further comprises a second side front leg and a second side rear leg pivotally connected to the lower end of the second upright frame, respectively, a second side front brace and a second side rear brace pivotally connected to the second slider, respectively, at an upper end thereof, the lower end of the second side front brace pivotally connected to the second side front leg, and the lower end of the second side rear brace pivotally connected to the second side rear leg.

In some embodiments, the first stand includes a first stand base frame connected to the first slider and the folding cross frame at a lower side, and a first elevating frame disposed at an upper portion of the first stand base frame to be vertically movable or detachably movable; the second vertical frame comprises a second vertical frame base frame which is positioned at the lower side and is respectively connected with the second sliding piece and the folding transverse frame, and a second lifting frame which can be lifted up and down or is arranged at the upper part of the second vertical frame base frame in a detachable mode.

In some embodiments, the upper end portions of the first and second vertical frames are respectively fixed with a first fixing seat and a second fixing seat for a sling of the human body supporting device, and a cup placing frame is inserted and mounted on the first fixing seat and/or the second fixing seat.

The invention provides a folding chair.

In order to solve the technical problems, the invention adopts the technical scheme that: a folding chair comprises the folding support frame in any technical scheme, and further comprises a human body supporting device arranged between the upper end part of the first vertical frame and the upper end part of the second vertical frame, wherein the human body supporting device is a hanging chair, a hanging bag or a hammock which can be folded.

The scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined are also intended to be encompassed. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention provides a foldable support frame and a foldable chair, wherein a cross first support frame, a cross second support frame, a cross third support frame and a first vertical frame of a foldable transverse frame of a novel folding principle form a four-bar linkage mechanism, the cross first support frame, the cross second support frame, the cross fourth support frame and a second vertical frame also form a four-bar linkage mechanism, the two four-bar linkage mechanisms share the cross first support frame, the cross second support frame and a turning point between the cross first support frame and the cross second support frame, when the cross first support frame and the cross second support frame are relatively unfolded and stabilized, the two four-bar linkage mechanisms simultaneously respectively form a stable triangular mechanism, and respectively unfold and stabilize a first side support frame and a second side support frame through a left first traction bar and a right traction bar and a second traction bar.

Drawings

FIG. 1 is a schematic view of a collapsible stand in an expanded position (example one);

FIG. 2 is a schematic view (embodiment one) of the foldable support frame in the unfolding or folding process;

FIG. 3 is an enlarged view of the folding crossbar shown in FIG. 1;

FIG. 4 is an enlarged view of the folding crossbar shown in FIG. 2;

FIG. 5 is a schematic view of a foldable support stand in a folded position (example one);

FIG. 6 is a schematic view of the placement cup;

FIG. 7 is a schematic structural view showing that the first lifting frame and the second lifting frame are vertically adjustable relative to the base frame of the first vertical frame and the base frame of the second vertical frame, respectively;

fig. 8 is a schematic view of the foldable support frame in an unfolding or folding process (in the second embodiment, the first lifting frame and the second lifting frame are respectively detachable relative to the first stand base frame and the second stand base frame);

FIG. 9 is a schematic view of a collapsible stand in an expanded position (example three);

FIG. 10 is a schematic view of the foldable support frame in the unfolded or folded state (embodiment III);

wherein 1, a first side bracket; 11. 11a, a first vertical frame base frame; 11b, a first elevated frame; 12. 13, a first side front foot; 14. a first side back leg; 15. a first side front support; 16. a first side back support; 2. a second side bracket; 21. 21a, a second vertical frame base frame; 21b, a second elevating frame; 22. 23, a second side front foot; 24. a second side rear leg; 25. a second side front support; 26. a second side back support; 3. folding the transverse frame; 31. a transverse first support frame, a transverse second support frame, a transverse third support frame, a transverse fourth support frame, a transverse first traction rod, a transverse second traction rod, a transverse third support frame, a transverse fourth support frame, a transverse second traction rod, a transverse shaft X1, a transverse shaft X36; x2, transverse biaxial; x3, transverse triaxial; x4, horizontal four-axis; x5, five horizontal shafts; x6, horizontal six axis; x7, transverse seven axis; x8, horizontal eight axis; x9, transverse nine-axis; x10, transverse ten-axis.

Detailed Description

As shown in fig. 1 and 9, the foldable support frame has an unfolded position and a folded position, and includes a first side support 1 and a second side support 2 respectively located at the left and right sides, and a foldable cross frame 3 which is arranged between the first side support 1 and the second side support 2 and can be folded. A human body supporting device is arranged between the upper part of the first side bracket 1 and the upper part of the second side bracket 2, and the human body supporting device is a hanging chair, a hanging bag or a hammock and the like which can be folded. Can constitute folding chair, folding swing or folding hammock etc. respectively after the installation, use, relax the mood under supplying people's amusement and recreation situation, stable in structure when expanding, the bearing can reach 130 kilograms, and is folding small, is convenient for deposit the transport, and the outdoor recreation of being convenient for is used.

The structure is described in detail as follows:

the first embodiment is as follows:

a foldable support frame, as shown in figures 1-7,

the first side bracket 1 comprises a first vertical frame 11 vertically arranged in use, a first slide piece 12 arranged on the first vertical frame 11 in a sliding manner along the vertical direction of the first vertical frame 11, a first side front foot 13 extending forwards and a first side rear foot 14 extending backwards, one end parts of which are respectively pivoted with the lower end part of the first vertical frame 11, a first side front support 15 and a first side rear support 16, the upper end parts of which are respectively pivoted with the first slide piece 12, the lower end part of the first side front support 15 is pivoted with the first side front foot 13, and the lower end part of the first side rear support 16 is pivoted with the first side rear foot 14. The axes of the pivot connections are arranged in parallel along the left-right direction. The up and down movement of the first slider 12 controls the unfolding and folding of the first side frame 1.

The second side bracket 2 comprises a second vertical frame 21 vertically arranged in use, a second slide piece 22 arranged on the second vertical frame 21 in a sliding manner along the vertical direction of the second vertical frame 21, a second side front foot 23 extending forwards and a second side rear foot 24 extending backwards, one end parts of which are respectively pivoted with the lower end part of the second vertical frame 21, a second side front support 25 and a second side rear support 26, the upper end parts of which are respectively pivoted with the second slide piece 22, the lower end part of the second side front support 25 is pivoted with the second side front foot 23, and the lower end part of the second side rear support 26 is pivoted with the second side rear foot 24. Wherein, the pivot axes are arranged in parallel along the left-right direction. The up and down movement of the second slider 22 controls the unfolding and folding of the second side frame 2.

Two sides of the hanging chair, the hanging bag or the hammock are arranged between the upper end of the first vertical frame 11 and the first fixed seat and the second fixed seat on the upper end of the second vertical frame 21 through hanging belts.

The folding crossbars 3 are arranged between the first side support 1 and the second side support 2 in a laterally expandable or foldable manner. Comprises a transverse first support frame 31 and a transverse second support frame 32 which are respectively arranged at the left and the right and are rotatably arranged between one end parts, a transverse third support frame 33 and a transverse fourth support frame 34 which are arranged in a crossing way and are positioned below the transverse first support frame 31 and the transverse second support frame 32. The other end of the transverse first support frame 31 is pivotally connected with the first stand 11 through a transverse five shaft X5, and the other end of the transverse second support frame 32 is pivotally connected with the second stand 21 through a transverse six shaft X6. The upper end part of the transverse three-support frame 33 is pivotally connected with the transverse two-support frame 32 through a transverse four-axis X4, the lower end part of the transverse three-support frame 33 is pivotally connected with the first vertical frame 11 through a transverse seven-axis X7, the upper end part of the transverse four-support frame 34 is pivotally connected with the transverse one-support frame 31 through a transverse three-axis X3, and the lower end part of the transverse four-support frame 34 is pivotally connected with the second vertical frame 21 through a transverse eight-axis X8. The cross-frame 31, the cross-frame 32, the cross-frame 33 and the first vertical frame 11 form a four-bar linkage, the cross-frame 31, the cross-frame 32, the cross-frame 34 and the second vertical frame 21 also form a four-bar linkage, the cross-frame 31 and the cross-frame 32 are unfolded to be approximately in a cross bar shape, when any turning point of the two four-bar linkages is locked, the two four-bar linkages become triangular linkages, the two triangular linkages support and are mutually drawn, and the transverse position is stable. The rotation relationship between the cross frame 31 and the cross frame 32 is a common part of the two four-bar linkages, and the two four-bar linkages can be locked at the same time.

In the present embodiment, the locking mechanism is not provided, but is used for locking in the following manner. When the foldable support frame is in the unfolded position, the rotation axis between one end of the transverse first support frame 31 and one end of the transverse second support frame 32 is arranged below the connecting line between the axis of the transverse five axis X5 and the axis of the transverse six axis X6, below the connecting line between the axis of the transverse three axis X3 and the axis of the transverse four axis X4, and above the crossing position of the transverse three support frame 33 and the transverse four support frame 34. In this embodiment, one end of the cross-brace 31 is pivotally connected to one end of the cross-brace 32 by a cross-axis X1. A one-way limiting mechanism which prevents the rotation axes of the first cross support frame 31 and the second cross support frame 32 from moving downwards at the unfolding position is arranged between the first cross support frame and the second cross support frame. The one-way limiting mechanism is that mutual abutting parts are respectively arranged at the end parts of the transverse first support frame 31 and the second support frame 32, and the two abutting parts meet and abut against each other so that the rotation can not be carried out. That is, under the action of the one-way limiting mechanism, the rotation position between the first cross frame 31 and the second cross frame 32 is only allowed to move upwards, that is, to be folded, and under the action of the one-way limiting mechanism, the rotation position between the first cross frame 31 and the second cross frame 32 moves downwards to have a limit position, the limit position is that the transverse axis X1 is in a dead point state, and is the unfolding position of the foldable support frame, that is, the limit position and the transverse axis X3, the transverse axis X4, the transverse axis X5 and the transverse axis X6 respectively form a triangle, and the transverse axis X1 is located below, if the foldable support frame is folded, the transverse axis X1 needs to be pulled upwards by manpower, and the force from the space between the left and right first stand 11 and the second stand 21 is overcome in the meantime; when the foldable support frame is in the unfolded position, particularly under the condition of being weighted, the force of the first stand 11 and the second stand 21 on the transverse axis X1 is increased, so that the unfolding is more stable, the foldable support frame is locked in the unfolded position without using an additional locking mechanism at all, and the foldable support frame is unfolded in place and automatically enters a locked state. The operation is very convenient.

Not shown in the figure, the rotation axis between one end of the transverse support frame 31 and one end of the transverse support frame 32 may be two rotation axes, the one-way limiting mechanism adopts an intermediate connecting member, one end of the transverse support frame 31 and one end of the transverse support frame 32 are respectively connected with two ends of the intermediate connecting member, and when the transverse support frame is unfolded, one end of the transverse support frame 31 and one end of the transverse support frame 32 are respectively abutted against the intermediate connecting member and can not rotate any more. Can only be rotated in the opposite direction to allow folding.

The folding cross frame 3 further comprises a first draw bar 35 and a second draw bar 36 respectively positioned on the left side and the right side, so that the deformation displacement action of the folding cross frame 3 during the unfolding or folding process can be respectively transferred to the first side bracket 1 and the second side bracket 2, and the first side bracket 1 and the second side bracket 2 can be synchronously unfolded or folded. In this embodiment, the first slider 12 is located below a five-axis X5, the second slider 22 is located below a six-axis X6, the lower end of the first drawbar 35 is pivotally connected to the three-bar cross bracket 33 via a nine-axis X9, and the upper end of the first drawbar 35 is pivotally connected to the first slider 12 via an eleven-axis; the lower end of the second pull rod 36 is pivotally connected to the cross frame 34 via a cross axis X10 and the upper end of the second pull rod 36 is pivotally connected to the second slider 22 via a cross axis twelve. When the two four-bar linkages on the folding cross frame 3 are unfolded stably, the positions of the first draw bar 35 and the second draw bar 36 are stable, that is, the first side bracket 1 and the second side bracket 2 on both sides are unfolded stably.

Preferably, the transverse third bracket 33 is provided with a third slide piece 37 sliding along the length direction thereof, the transverse fourth bracket 34 is provided with a fourth slide piece 38 sliding along the length direction thereof, and the third slide piece 37 and the fourth slide piece 38 are pivotally connected through a transverse second axis X2. Therefore, the cross-frame 31, the cross-frame 32, the cross-frame 33 and the cross-frame 34 form a link mechanism, when the two four-link mechanisms are locked to form a triangular mechanism, the mutual angular positions of the cross-frame 33 and the cross-frame 34 are determined, and after the third slide piece 37 and the fourth slide piece 38 are connected with the cross-shaft X2, the cross-frame 31, the cross-frame 32, the cross-frame 33 and the cross-frame 34 form a triangular structure, so that the folding cross frame 3 is unfolded more stably and has stronger rigidity.

When the foldable support frame is in the unfolded position, a connecting line between the five transverse axes X5 and the six transverse axes X6 is longer than a connecting line between the seven transverse axes X7 and the eight transverse axes X8.

In this embodiment, a hanging bag or the like is provided above the first stand 11 and the second stand 21. The height is higher, so that the volume is smaller at the folding position, the first vertical frame 11 and the second vertical frame 21 are respectively arranged to be telescopic, the first vertical frame 11 comprises a first vertical frame base frame 11a which is positioned at the lower side and is respectively connected with the first slide piece 12 and the folding cross frame 3, and a first lifting frame 11b which can be vertically lifted and arranged at the upper part of the first vertical frame base frame 11 a; the second vertical frame 21 includes a second vertical frame base 21a located at a lower side and connected to the second slider 22 and the folding cross frame 3, and a second elevating frame 21b vertically provided on an upper portion of the second vertical frame base 21 a.

There are many ways of telescopic locking, for example, two elastic pins are arranged on the first lifting frame 11b, two locking holes are arranged on the first vertical frame base frame 11a, when the elastic pins are respectively inserted into the locking holes, the height is locked, and a button which can be pressed by the elasticity of the material is arranged on the guide sleeve at the upper end of the first vertical frame base frame 11a, the elastic pins can be retracted to exit the locking holes by pressing the button, so that the first lifting frame 11b can be pressed and folded. The second elevating frame 21b is also.

The first lifting frame 11b can be hung with a cup for placing water cups and articles such as water cups.

In the second embodiment, as shown in fig. 8, the difference between the second embodiment and the first embodiment is: the first stand 11 and the second stand 21 are different in structure, and the first stand 11 and the second stand 21 are detachable to be detachable to each other so as to reduce the folding volume. The upper end of the first vertical frame base 11a is provided with a positioning slot, and the first lifting frame 11b is provided with a rivet which can be clamped into the positioning slot to prevent the rod from rotating.

The third embodiment, as shown in fig. 9 and 10, is different from the first embodiment in that: the first slide member 12 is positioned above a transverse five axis X5, the second slide member 22 is positioned above a transverse six axis X6, the lower end of the first traction rod 35 is pivotally connected to the transverse first bracket 31 through a transverse nine axis X9, and the lower end of the second traction rod 36 is pivotally connected to the transverse second bracket 32 through a transverse ten axis X10.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (10)

1. A foldable support frame has an unfolding position and a folding position, and comprises a first side support (1) and a second side support (2) which are respectively positioned at the left side and the right side, and a foldable transverse frame (3) which is arranged between the first side support (1) and the second side support (2) and can be folded,

the first side bracket (1) comprises a first vertical frame (11) which is vertically arranged when in use, and a first sliding piece (12) which is arranged on the first vertical frame (11) in a sliding way along the vertical direction of the first vertical frame (11),

the second side bracket (2) comprises a second vertical frame (21) which is vertically arranged when in use and a second sliding piece (22) which is arranged on the second vertical frame (21) in a sliding way along the vertical direction of the second vertical frame (21),

the method is characterized in that: the folding transverse frame (3) comprises a transverse first support frame (31) and a transverse second support frame (32) which are arranged left and right and rotatably arranged between the ends, a transverse third support frame (33) and a transverse fourth support frame (34) which are arranged in a cross mode and are positioned below the transverse first support frame (31) and the transverse second support frame (32), the other end of the transverse first support frame (31) is pivotally connected with the first vertical frame (11) through a transverse five-axis (X5), the other end of the transverse second support frame (32) is pivotally connected with the second vertical frame (21) through a transverse six-axis (X6), the upper end of the transverse third support frame (33) is pivotally connected with the transverse second support frame (32) through a transverse four-axis (X4), the lower end of the transverse third support frame (33) is pivotally connected with the first vertical frame (11) through a transverse seven-axis (X7), and the upper end of the transverse fourth support frame (34) is pivotally connected with the transverse first support frame (31) through a transverse three-axis (X3), the lower end part of the transverse four-support frame (34) is pivotally connected with the second vertical frame (21) through a transverse eight-axis (X8),

the folding cross frame (3) further comprises a first traction rod (35) and a second traction rod (36) which are respectively located on the left side and the right side, the upper end of the first traction rod (35) is rotatably connected with the first sliding piece (12), the upper end of the second traction rod (36) is rotatably connected with the second sliding piece (22), the lower end of the first traction rod (35) and the lower end of the second traction rod (36) are respectively rotatably connected with the cross support frame (31) and the cross support frame (32), or are respectively rotatably connected with the cross support frame (33) and the cross support frame (34).

2. The foldable support stand of claim 1, wherein: the transverse third support frame (33) is provided with a third slide piece (37) in a sliding mode along the length direction of the transverse third support frame, the transverse fourth support frame (34) is provided with a fourth slide piece (38) in a sliding mode along the length direction of the transverse fourth support frame, and the third slide piece (37) and the fourth slide piece (38) are in pivot connection through a transverse second shaft (X2).

3. The foldable support stand of claim 1, wherein: and when the foldable support frame is in the unfolded position, the rotating axis between one end part of the first cross support frame (31) and one end part of the second cross support frame (32) is positioned below a connecting line between the axis of the five cross shafts (X5) and the axis of the six cross shafts (X6) and/or below a connecting line between the axis of the three cross shafts (X3) and the axis of the four cross shafts (X4) and positioned above a crossing part of the third cross support frame (33) and the fourth cross support frame (34).

4. The foldable support stand of claim 3, wherein: when the foldable support frame is in the unfolded position, a connecting line between the five transverse shafts (X5) and the six transverse shafts (X6) is longer than a connecting line between the seven transverse shafts (X7) and the eight transverse shafts (X8).

5. The foldable support stand of claim 3, wherein: one end of the transverse supporting frame (31) is pivotally connected with one end of the transverse supporting frame (32) through a transverse shaft (X1).

6. The foldable support stand of claim 1, wherein: the first slider (12) is located above the five transverse axes (X5), the second slider (22) is located above the six transverse axes (X6), the lower end of the first traction rod (35) is pivotally connected to the first transverse frame (31) via a nine transverse axis (X9), the lower end of the second traction rod (36) is pivotally connected to the second transverse frame (32) via a ten transverse axis (X10), or the first slider (12) is located below the five transverse axes (X5), the second slider (22) is located below the six transverse axes (X6), the lower end of the first traction rod (35) is pivotally connected to the three transverse frame (33) via a nine transverse axis (X9), and the lower end of the second traction rod (36) is connected to the four transverse frame (34) via a ten transverse axis (X10).

7. The foldable support stand of claim 1, wherein: the first side bracket (1) further comprises a first side front foot (13) and a first side rear foot (14) which are respectively and pivotally connected with the lower end part of the first upright frame (11), a first side front support (15) and a first side rear support (16) which are respectively and pivotally connected with the first slider (12) at the upper end parts, the lower end part of the first side front support (15) is pivotally connected with the first side front foot (13), the lower end part of the first side rear support (16) is pivotally connected with the first side rear foot (14), the second side bracket (2) further comprises a second side front foot (23) and a second side rear foot (24) which are respectively and pivotally connected with the lower end part of the second upright frame (21), and a second side front support (25) and a second side rear support (26) which are respectively and pivotally connected with the second slider (22) at the upper end parts, the lower end part of the second side front support (25) is pivotally connected with the second side front foot (23), the lower end part of the second side back support (26) is pivotally connected with the second side back foot (24).

8. The foldable support stand of claim 1, wherein: the first vertical frame (11) comprises a first vertical frame base frame (11 a) which is positioned at the lower side and is respectively connected with the first sliding piece (12) and the folding transverse frame (3), and a first lifting frame (11 b) which can be vertically lifted or detachably arranged at the upper part of the first vertical frame base frame (11 a); the second vertical frame (21) comprises a second vertical frame base frame (21 a) which is positioned at the lower side and is respectively connected with the second sliding piece (22) and the folding transverse frame (3), and a second lifting frame (21 b) which can be vertically lifted or detachably arranged at the upper part of the second vertical frame base frame (21 a).

9. The foldable support stand of claim 1, wherein: the upper ends of the first vertical frame (11) and the second vertical frame (21) are respectively fixed with a first fixing seat and a second fixing seat of a hanging strip of the human body supporting device, and the cup placing frame is inserted and installed on the first fixing seat and/or the second fixing seat.

10. A folding chair incorporating the collapsible support of any one of claims 1 to 9, wherein: the human body supporting device is arranged between the upper end of the first vertical frame (11) and the upper end of the second vertical frame (21), and is a hanging chair, a hanging bag or a hammock which can be folded.

Images