Folding framework and household appliance

Abstract

The utility model provides a folding framework and a household appliance. The folding framework comprises a plurality of supporting columns and folding units located among the supporting columns. The folding unit comprises a first rotating part and a second rotating part which are rotatably connected; the end, away from the second rotating piece, of the first rotating piece is rotationally connected with one supporting column, and the end, away from the first rotating piece, of the second rotating piece is rotationally connected with the other supporting column. The folding unit has an unfolded state and a folded state; when the unfolding state and the folding state are switched, the first rotating piece and the second rotating piece rotate relatively to drive the supporting columns to be away from each other or gathered together. In the folding state, the two supporting columns connected with the folding units are in contact with each other; or a folding gap is formed between the two supporting columns connected with the folding unit, and the folding gap is smaller than the sum of the widths of the first rotating piece and the second rotating piece. According to the technical scheme, the occupied space can be reduced to the maximum extent after folding.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of folding framework, and a kind of household appliance based on the folding framework. BACKGROUND

[0002] As the patent document with the publication number "US10501103B1", the patent name "hinged frame" records: articulated frame has open position and closed position. Frame has eight corner joints, i.e. four upper corner joints and four lower corner joints. Four upper corner joints include right front upper joint, left front upper joint, right rear upper joint and left rear upper joint. Four lower corner joints include right front lower joint, left front lower joint, right rear lower joint and left rear lower joint. Four linear joints include right middle upper joint, left middle upper joint, left middle lower joint and right middle lower joint. Six vertical supports include right front vertical support, left front vertical support, right middle vertical support, left middle vertical support, right rear vertical support and left rear vertical support

[0003] In the above-mentioned folding frame scheme, the plurality of vertical supports are directly connected by the plurality of hinge pieces, and by rotating the plurality of hinge pieces, the plurality of vertical supports are brought closer to each other or away from each other to realize the folding or unfolding of the frame. However, in the folded state, the plurality of hinge pieces are arranged side by side between the plurality of vertical supports, and the vertical supports cannot be further folded by passing over the hinge pieces, resulting in a large folding storage area. SUMMARY

[0004] The utility model aims at providing a folding framework that can minimize the occupied space after folding.

[0005] The folding framework provided by the present application comprises:

[0006] a plurality of struts and a folding unit located between the struts;

[0007] The folding unit comprises a first rotating piece and a second rotating piece that are rotatably connected;

[0008] One end of the first rotating piece away from the second rotating piece is rotatably connected to one of the struts, and one end of the second rotating piece away from the first rotating piece is rotatably connected to another strut;

[0009] The folding unit has an unfolded state and a folded state;

[0010] When switching between the unfolded state and the folded state, the first rotating piece and the second rotating piece rotate relative to each other to drive the struts away from or close to each other; wherein;

[0011] In the folded state, the two struts connected to the folding unit are in contact; or,

[0012] The two struts connected with the folding unit have a folding gap, and the folding gap is smaller than the sum of the widths of the first rotating member and the second rotating member.

[0013] Further, in the folded state, the first rotating member and the second rotating member are at least partially accommodated in the struts.

[0014] Further, the first rotating member and the second rotating member are each provided with a hidden area and a leakage area, and the hidden area and the leakage area are arranged along the width direction of the first rotating member or the second rotating member.

[0015] The struts are provided with an accommodation groove along the height direction thereof, and the accommodation groove is provided with a third hinge part, and the third hinge part is hinged with the first rotating member or the second rotating member, and in the folded state, the hidden area is turned into the accommodation groove.

[0016] Further, in the folded state, the leakage area of the first rotating member abuts against the leakage area of the second rotating member.

[0017] Further, one end of the first rotating member away from the second rotating member is provided with a first hinge part, and one end of the second rotating member away from the first rotating member is provided with a second hinge part.

[0018] In the folded state, the first hinge part abuts against the second hinge part, and in the unfolded state, the distance between the first hinge part and the second hinge part is the maximum distance therebetween.

[0019] Further, one end of the first rotating member towards the second rotating member is provided with a first gear, and one end of the second rotating member towards the first rotating member is provided with a second gear, and the first gear is engaged with the second gear.

[0020] The first gear and the second gear are each provided with a first abutting part and a second abutting part, and in the unfolded state, the two first abutting parts abut against each other, and in the folded state, the two second abutting parts abut against each other.

[0021] Compared with the prior art, the beneficial technical effects of the technical scheme of the utility model are as follows:

[0022] When the folding frame is in the folded state, the two struts connected with the folding unit abut against each other or have a gap smaller than the sum of the widths of the first rotating member and the second rotating member, and such a design enables the folding frame to minimize the occupied space after being folded, facilitating storage and transportation.

[0023] The folding frame provided by the application further includes:

[0024] four pillars and a first folding unit located between any two adjacent pillars and rotatably connected with the pillars; and

[0025] a second folding unit located between two diagonal pillars and rotatably connected with the pillars, the axis extension directions of the second folding unit intersecting with each other;

[0026] the first folding unit and the second folding unit respectively comprise a plurality of rotating members adapted to relative rotation and have an unfolded state and a folded state respectively;

[0027] in the conversion between the unfolded state and the folded state, the rotating members are relatively rotated to drive the pillars to move away from each other from the center to the periphery or to move together from the periphery to the center; wherein,

[0028] in the folded state, any two adjacent pillars are in contact; or,

[0029] any two adjacent pillars have a folding gap therebetween, and the folding gap is smaller than the sum of the widths of the rotating members of the first folding unit.

[0030] Further, in the folded state, the rotating members of the first folding unit and the second folding unit are at least partially accommodated in the pillars respectively.

[0031] Further, each of the pillars is respectively provided with a plurality of accommodation grooves along the height direction thereof, and the rotating members of the first folding unit and the second folding unit are adapted to be transferred into the accommodation grooves during the conversion of the folding frame from the unfolded state to the folded state.

[0032] Further, in the folded state, the second folding unit is surrounded between the first folding units.

[0033] Compared with the prior art, the beneficial technical effects of the technical scheme of the utility model are as follows:

[0034] On the one hand, by adopting the structure design of four pillars combined with the first folding unit and the second folding unit, in the unfolded state, the stability of the frame is significantly enhanced due to the joint action of the first folding unit located between adjacent pillars and the second folding unit located between diagonal pillars and having axis extension directions intersecting with each other;

[0035] On the other hand, in the folded state, any two adjacent pillars touching or having a gap smaller than the sum of the widths of the multiple rotating parts of the first folding unit ensures that the folding frame achieves a very compact state after folding, effectively saving space. This compact folding method is convenient for both home storage and equipment storage and transportation after outdoor activities. For example, after camping in the wild, this folding frame can be quickly folded into a smaller shape, making it easy to put back into a backpack or place in the limited space of a campervan.

[0036] This application also provides a household appliance that includes a folding frame as described above.

[0037] Furthermore, the home appliance is a folding chair or stool, which includes a seat adapted to be detachably connected to the folding frame, wherein;

[0038] The seats include first type seats and / or second type seats;

[0039] The first type of seat is adapted to be connected to the folding frame in the unfolded state to form a first type of folding chair / stool;

[0040] The second type of seat is adapted to be connected to the folding frame in the folded state to form a second type of folding chair / stool;

[0041] Alternatively, the home appliance may be a folding storage box, which includes a frame adapted to be detachably connected to the folding frame in its unfolded state.

[0042] Alternatively, the home appliance may be a folding storage bed, which includes a bed board adapted to be detachably connected to the folding frame in its unfolded state.

[0043] Furthermore, it also includes: legs, which are connected to the bottom end of the support column and extend outward at an angle.

[0044] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0045] The home appliances provided in this application have all the beneficial technical effects of the aforementioned folding frame, which will not be repeated here. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 is a structural schematic diagram of the folding framework in the unfolded state in Embodiment 1;

[0048] Figure 2 is a three-dimensional structural schematic diagram of the folding framework in the folded state in Embodiment 1;

[0049] Figure 3 is a structural side view of the folding framework in the folded state in Embodiment 1;

[0050] Figure 4 is a structural schematic diagram of the folding framework in the unfolded state in Embodiment 2;

[0051] Figure 5 is a three-dimensional structural schematic diagram of the folding framework in the folded state in Embodiment 2;

[0052] Figure 6 is a structural schematic diagram of the first folding unit and the strut in the unfolded state in Embodiment 2;

[0053] Figure 7 is a structural schematic diagram of the first folding unit and the second folding unit in the folded state in Embodiment 2;

[0054] Figure 8 is a structural schematic diagram of the folding unit in the unfolded state in Embodiment 2;

[0055] Figure 9 is a structural schematic diagram of the folding unit in the folded state in Embodiment 2;

[0056] Figure 10 is a structural schematic diagram of the first gear and the second gear in the unfolded state in the folding unit in Embodiment;

[0057] Figure 11 is a structural schematic diagram of the first gear and the second gear in the folded state in the folding unit in Embodiment. DETAILED DESCRIPTION

[0058] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0059] Referring to Figures 1 to 3 , a folding framework comprises:

[0060] a plurality of struts 200 and folding units 100 located between the struts 200;

[0061] The folding unit 100 comprises a first rotating member 110 and a second rotating member 120 rotatably connected;

[0062] One end of the first rotating member 110 away from the second rotating member 120 is rotatably connected with one of the two pillars 200, and one end of the second rotating member 120 away from the first rotating member 110 is rotatably connected with the other pillar 200;

[0063] The folding unit 100 has an unfolded state and a folded state;

[0064] When switching between the unfolded state and the folded state, the first rotating member 110 and the second rotating member 120 rotate relative to each other to drive the two pillars 200 to move away from each other or to move close to each other; wherein;

[0065] In the folded state, the two pillars 200 connected by the folding unit 100 are in contact; or,

[0066] The two pillars 200 connected by the folding unit 100 have a folding gap L1 therebetween, and the folding gap L1 is less than the sum L2 of the widths of the first rotating member 110 and the second rotating member 120.

[0067] The first rotating member 110 and the second rotating member 120 are rotatably connected with different pillars 200 respectively, forming a specific, relatively simple and orderly linkage structure. The folding and unfolding functions are realized by the relative rotation of the two rotating members to drive the two pillars to move away from each other or to move close to each other. In particular, in the folded state, the two pillars 200 connected by the folding unit 100 are in contact or the gap therebetween is less than the sum of the widths of the two rotating members. This design enables the folding frame to minimize the occupied space after folding.

[0068] Specifically, continuing to refer to Figure 3 the folding unit 100 shown in the folded state, the first rotating member 110 and the second rotating member 120 are at least partially accommodated in the pillars 200. When the first rotating member 110 and the second rotating member 120 can be at least partially accommodated in the pillars 200, compared with the conventional folding frame in which the rotating members are still completely exposed after folding, the overall size of the folding frame after folding is further reduced.

[0069] In addition, since the rotating members have a specific accommodation position, i.e., inside the pillars, the components of the folded frame are more regular, and the rotating members will not be randomly hanging, entangled with other objects, or easily damaged due to disordered placement.

[0070] More specifically, continuing to refer to Figure 3 the folding unit 100 shown in the folded state, the first rotating member 110 and the second rotating member 120 are at least partially accommodated in the pillars 200. When the first rotating member 110 and the second rotating member 120 can be at least partially accommodated in the pillars 200, compared with the conventional folding frame in which the rotating members are still completely exposed after folding, the overall size of the folding frame after folding is further reduced.

[0071] The support 200 is provided with a receiving groove 220 along the height direction thereof, and the third hinge part 150 is arranged in the receiving groove 220 and is hinged with the first rotating part 110 or the second rotating part 120. In the folded state, the hidden area is turned into the receiving groove 220.

[0072] It can be understood that by arranging the hidden area and the leakage area and allowing the hidden area to be turned into the receiving groove of the support in the folded state, the receiving cooperation between the rotating part and the support is realized. In this way, the corresponding receiving groove 220 can make full use of the internal space of the support 200, further reduce the excess space occupation caused by unreasonable component receiving, make the overall folding frame more compact after folding, and achieve more significant space saving effect.

[0073] Moreover, due to the arrangement of the hinge structure and the corresponding area, the first rotating part and the second rotating part can be relatively rotated along a reasonable path and angle and complete the receiving or stretching action when they are converted between the unfolded state and the folded state, which reduces the interference between the components, ensures that the state conversion process is smoother and more orderly, and further improves the convenience of using the folding frame.

[0074] In addition, in the folded state, the leakage area of the first rotating part 110 abuts against the leakage area of the second rotating part 120. In this way, when the leakage area of the first rotating part 110 abuts against the leakage area of the second rotating part 120, they rely on and support each other, and a relatively stable internal structure is formed in the folded state. Moreover, through the abutment of the leakage areas, the relative positions of the two rotating parts in the folded state are more compact and regular, the gap between them is minimized, the space occupation of the overall folding frame is further optimized, and the folding frame can present a more compact form after folding, which is more convenient for storage. Whether it is placed in a storage cabinet indoors or a space-limited place such as a backpack or a camping equipment box, the space can be more efficiently utilized.

[0075] In addition, after the folding frame is folded, the user can directly determine whether the folding operation is in place and whether the ideal folding state is reached by observing whether the leakage areas of the first rotating part and the second rotating part abut against each other. This clear criterion facilitates the user to find and correct possible folding problems in time, and when the folding frame is unfolded subsequently, the starting state can also be quickly determined according to the state, and then the operation is smoothly performed, thereby improving the convenience of the entire use process.

[0076] Further, the first rotating part 110 has a first hinge part at the end away from the second rotating part 120, and the second rotating part 120 has a second hinge part at the end away from the first rotating part 110.

[0077] In the folded state, the first hinge portion abuts against the second hinge portion, and in the unfolded state, the distance from the first hinge portion to the second hinge portion is the maximum distance therebetween.

[0078] In the folded state, the first hinge portion abuts against the second hinge portion, and in the unfolded state, the distance from the first hinge portion to the second hinge portion is the maximum distance therebetween.

[0079] In the unfolded state, the distance from the first hinge portion to the second hinge portion is the maximum distance therebetween, which means that the frame is in a state of maximum opening and maximum stability, and the components are distributed according to the predetermined maximum distance, which can better withstand external forces and provide stable and reliable support for the objects built thereon, ensuring the carrying capacity of the entire frame in actual use scenarios, reducing the possibility of shaking and deformation due to unstable support, and improving the user's experience and sense of security when using.

[0080] Further, the first rotating member 110 is provided with a first gear 130 at one end thereof facing the second rotating member 120, and the second rotating member 120 is provided with a second gear 140 at one end thereof facing the first rotating member 110, and the first gear 130 is engaged with the second gear 140.

[0081] The first gear 130 and the second gear 140 are each provided with a first abutting portion 131 and a second abutting portion 141; when in the unfolded state, the two first abutting portions 131 abut against each other, and when in the folded state, the two second abutting portions 141 abut against each other.

[0082] The first gear on the first rotating member and the second gear on the second rotating member are engaged with each other, so that during folding and unfolding, the two rotating members can be synchronously rotated relative to each other, and when folding the frame, as long as one of the rotating members is driven to rotate, the other rotating member will rotate according to the corresponding angle and speed through the engagement transmission of the gears, ensuring the coordinated movement of the entire folding unit and avoiding problems such as jamming and structural distortion that may be caused by the asynchronous rotation of the two rotating members, making the folding and unfolding operation smoother and more efficient.

[0083] In addition, the first abutting portion 131 is arranged on the rotation path of the first gear 130 or the second gear 140 during unfolding, and the second abutting portion 141 is arranged on the rotation path of the first gear 130 or the second gear 140 during folding.

[0084] Specifically, during unfolding, the first gear 130 and the second gear 140 rotate in the same direction to the two first abutting portions 131 abutting, at which time the two first abutting portions 131 can prevent the first gear 130 and the second gear 140 from continuing to rotate in the unfolding direction, thereby positioning the first rotating member 110 and the second rotating member 120 in the unfolded state. Meanwhile, when the folding unit 100 is subjected to a downward force, the first rotating member 110 and the second rotating member 120 have a tendency to continue to unfold, at which time the two first abutting portions 131 abutting can offset the tendency, thereby enhancing the stability of the first rotating member 110 and the second rotating member 120 in the unfolded state.

[0085] Similarly, during folding, the first gear 130 and the second gear 140 rotate in the opposite direction to the two second abutting portions 141 abutting, at which time the two second abutting portions 141 abutting can prevent the first gear 130 and the second gear 140 from continuing to rotate in the folding direction, thereby positioning the first rotating member 110 and the second rotating member 120 in the folded state.

[0086] Referring to Figures 4 to 11 Another folding framework provided by the present application comprises:

[0087] four struts 200 and a first folding unit 101 located between any two adjacent struts 200 and rotationally connected with the struts 200; and,

[0088] a second folding unit 102 located between diagonally opposite two struts 200 and rotationally connected with the struts 200, the axes of the second folding unit 102 extending in opposite directions;

[0089] The first folding unit 101 and the second folding unit 102 each comprise a plurality of rotating members adapted to rotate relative to each other and have an unfolded state and a folded state, respectively;

[0090] During conversion between the unfolded state and the folded state, the rotating members rotate relative to each other to drive the struts 200 to move away from each other from the center to the periphery or to move towards each other from the periphery to the center; wherein,

[0091] In the folded state, any two adjacent struts 200 are in contact; or,

[0092] Any two adjacent struts 200 have a folding gap therebetween, and the folding gap is smaller than the sum of the widths of the plurality of rotating members of the first folding unit 101.

[0093] The structure employs four pillars combined with a first folding unit located between adjacent pillars and a second folding unit located between diagonal pillars with their axes intersecting. In the unfolded state, this layout significantly enhances the stability of the frame. The first folding unit connects and supports the pillars from all sides, while the second folding unit further reinforces the overall structure through diagonal connections. The components work together to ensure that the frame remains stable under external forces, preventing swaying or deformation.

[0094] In addition, the rotating components in the first and second folding units can rotate relative to each other, thereby causing the pillars to move away from each other from the center or towards the center, achieving flexible switching between the unfolded and folded states. This operation method based on rotating components is relatively simple and intuitive, allowing users to easily complete the folding and unfolding operations without complicated steps or tools. It facilitates switching between states in different scenarios (such as quickly folding and storing equipment after outdoor camping or quickly unfolding when needed at home), improving ease of use.

[0095] In particular, in the folded state, any two adjacent pillars touching or the folding gap between them is less than the sum of the widths of the multiple rotating parts of the first folding unit. This design allows the entire folding structure to present a very compact form after folding.

[0096] Furthermore, in the folded state, the rotating parts of the first folding unit 101 and the second folding unit 102 are at least partially housed within the support column 200.

[0097] When the rotating parts of the first and second folding units can be at least partially housed within the support column, the overall dimensions of the folding frame will be further reduced compared to folding frames where the rotating parts are completely exposed after folding.

[0098] Furthermore, referring to Figure 4 As shown, each support column 200 is provided with multiple storage slots 220 along its height direction. During the process of the folding frame changing from the unfolded state to the folded state, the rotating parts of the first folding unit 101 and the second folding unit 102 are respectively adapted to rotate into the storage slots 220.

[0099] The plurality of receiving grooves are arranged along the height direction of each support, so that the rotating members of the first folding units and the second folding units can be respectively rotated into the corresponding receiving grooves in the folding process. The design can make full use of the space inside the support, avoid mutual extrusion or no place to arrange the rotating members when the rotating members are arranged, and make the entire folding framework more compact when folded, thereby further reducing the occupied space. In addition, the receiving grooves provide clear guidance and limiting effect for the rotation and arrangement of the rotating members in the folding process. When the folding framework is converted from the unfolded state to the folded state, the rotating members can be naturally and smoothly rotated into the receiving grooves along the position and shape of the receiving grooves, thereby avoiding the problems of mutual interference and jamming of the rotating members due to lack of guidance, and making the entire folding operation more smooth and convenient.

[0100] In addition, it can be understood that when the rotating members are rotated into the receiving grooves, the receiving grooves can fix and constrain the rotating members, prevent the rotating members from deviating from the original arrangement position due to accidental shaking, collision or other conditions during storage or transportation, thereby maintaining the stability of the folding framework in the folded state, ensuring that the folding framework always maintains a compact shape, reducing the risk of mutual friction and damage caused by part displacement, and prolonging the service life of the entire folding framework.

[0101] Referring back to Figure 7 In the folded state, the second folding units 102 are surrounded between the first folding units 101, so that the structure of the entire folding framework in the folded state is more compact, and the space utilization efficiency is further optimized.

[0102] In general, on the one hand, the four supports 200 are combined with the structural design of the first folding units 101 and the second folding units 102. In the unfolded state, due to the combined action of the first folding units 101 located between adjacent supports 200 and the second folding units 102 located between diagonal supports 200 and having the axis extension direction intersecting each other, the stability of the framework is significantly enhanced.

[0103] On the other hand, in the folded state, any two adjacent supports 200 are in contact or have a gap smaller than the sum of the widths of the plurality of rotating members of the first folding units 101, which ensures that the folding framework can reach a very compact state after folding, thereby effectively saving space. Whether used for household storage or for storage and transportation of equipment after outdoor activities, this compact folding method is very convenient.

[0104] In addition, the present application further provides a household appliance comprising the folding framework as described above.

[0105] Further, the household appliance is a folding chair stool comprising a seat adapted to be detachably connected with the folding framework.

[0106] The seat comprises a first type of seat and / or a second type of seat;

[0107] The first type of seat is adapted to be connected with the folding frame in the unfolded state to form a first type of folding stool;

[0108] The second type of seat is adapted to be connected with the folding frame in the folded state to form a second type of folding stool;

[0109] Alternatively, the household appliance is a folding storage box, and the folding storage box comprises a frame adapted to be detachably connected with the folding frame in the unfolded state;

[0110] Alternatively, the household appliance is a folding storage bed, and the folding storage bed comprises a bed plate adapted to be detachably connected with the folding frame in the unfolded state.

[0111] Taking the folding stool as an example, the lower surface of the seat is provided with a connecting port, and in the unfolded state, the first connecting portions 210 at the top of the four support columns 200 extend into the connecting port respectively to realize the first type of folding stool.

[0112] In the folded state, the first connecting portions 210 at the top of the four support columns 200 converge to form a second connecting portion 211, and the second connecting portion 211 extends into the connecting port of the second type of seat, which can be used as a high stool at this time.

[0113] It can be understood that the first type of seat and the second type of seat refer to seats with different interfaces, which can be two different shape designed seats, or seats with two different interfaces on the same seat.

[0114] Further, it further comprises: a support leg 300 connected with the bottom end of the support column 200 respectively and extending outwardly and obliquely, so that the supporting bottom surface can be expanded, and in addition, the obliquely extended support leg can better resist the overturning moment generated by external force on the frame through the friction between itself and the ground and the decomposition of force when bearing lateral force.

[0115] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable frame comprising: a plurality of struts and a plurality of foldable units between the struts; characterized in that: each of the foldable units comprises a first rotatable member and a second rotatable member rotatably connected to each other; one end of the first rotatable member away from the second rotatable member is rotatably connected to one of the struts, and one end of the second rotatable member away from the first rotatable member is rotatably connected to another of the struts; each of the foldable units has an unfolded state and a folded state; when transforming between the unfolded state and the folded state, the first rotatable member and the second rotatable member rotate relative to each other to drive the struts away from or close to each other; wherein: in the folded state, the two struts connected by the foldable unit are in contact with each other; or there is a folding gap between the two struts connected by the foldable unit, and the folding gap is smaller than the sum of the widths of the first rotatable member and the second rotatable member.

2. The foldable framework of claim 1, wherein: In the folded state, the first rotatable member and the second rotatable member are at least partially accommodated in the struts.

3. The folding frame of claim 1 or 2, wherein: The first rotatable member and the second rotatable member are each provided with a hidden area and a leakage area, and the hidden area and the leakage area are arranged along the width direction of the first rotatable member or the second rotatable member; The struts are provided with receiving grooves along the height direction thereof, and the receiving grooves are provided with third hinge portions, the third hinge portions are hinged to the first rotatable member or the second rotatable member, and in the folded state, the hidden area is turned into the receiving groove.

4. The foldable framework of claim 3, wherein: In the folded state, the leakage area of the first rotatable member and the leakage area of the second rotatable member are in contact.

5. The foldable framework of claim 3, wherein: One end of the first rotatable member away from the second rotatable member is provided with a first hinge portion, and one end of the second rotatable member away from the first rotatable member is provided with a second hinge portion; In the folded state, the first hinge portion and the second hinge portion are in contact, and in the unfolded state, the distance between the first hinge portion and the second hinge portion is the maximum distance therebetween.

6. The foldable framework of claim 1 or 2, wherein: One end of the first rotatable member towards the second rotatable member is provided with a first gear, and one end of the second rotatable member towards the first rotatable member is provided with a second gear, the first gear and the second gear are engaged; The first gear and the second gear are each provided with a first abutting portion and a second abutting portion; when in the unfolded state, the two first abutting portions are in contact, and when in the folded state, the two second abutting portions are in contact.

7. A foldable frame comprising: four struts and a first foldable unit between any two adjacent struts and rotatably connected to the struts; and a second foldable unit between two diagonally opposite struts and rotatably connected to the struts, the second foldable unit has axes extending in opposite directions; characterized in that: the first foldable unit and the second foldable unit each comprise a plurality of rotatable members adapted to rotate relative to each other, and each have an unfolded state and a folded state; when transforming between the unfolded state and the folded state, the rotatable members rotate relative to each other to drive the struts away from or close to each other; wherein: in the folded state, any two adjacent struts are in contact with each other; or there is a folding gap between the two struts connected by the foldable unit, and the folding gap is smaller than the sum of the widths of the first rotatable member and the second rotatable member. Each of the first and second folding units has a plurality of rotating members, and each of the rotating members has a width.

8. The foldable framework of claim 7, wherein: In the folded state, the rotating members of the first and second folding units are at least partially received in the struts, respectively.

9. The foldable framework of claim 8, wherein: Each of the struts is provided with a plurality of receiving grooves along a height direction thereof, and the rotating members of the first and second folding units are adapted to be turned into the receiving grooves during the transition of the folding frame from the unfolded state to the folded state.

10. The foldable framework according to any one of claims 7 to 9, wherein: In the folded state, the second folding unit is surrounded by the first folding units.

11. A home appliance characterized by: The folding frame as claimed in any one of claims 1 to 10.

12. The home appliance of claim 11, wherein: The household appliance is a folding chair stool comprising a seat adapted to be detachably connected with the folding frame, wherein The seat comprises a first type of seat and / or a second type of seat; The first type of seat is adapted to be connected with the folding frame in the unfolded state to form a first type of folding chair stool; The second type of seat is adapted to be connected with the folding frame in the folded state to form a second type of folding chair stool; Or, the household appliance is a folding storage box comprising a frame adapted to be detachably connected with the folding frame in the unfolded state; Or, the household appliance is a folding storage bed comprising a bed board adapted to be detachably connected with the folding frame in the unfolded state.

13. The home appliance according to claim 11 or 12, characterized in that, Further comprising: Supporting legs connected with bottom ends of the struts, respectively, and extending outwardly and obliquely.

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