CN210643364U - Folding structure suitable for sofa bed - Google Patents

Abstract

The utility model discloses a foldable structure suitable for sofa bed, including the sofa main part, the below of sofa main part is equipped with sofa base, and sofa base's upper surface is inwards sunken to form the cavity that the opening is upwards, is equipped with two swing support frames between sofa main part and the sofa base, and sofa main part can rise or descend through the swing of swing support frame, be equipped with long connecting rod between two swing support frames, through long connecting rod fixed connection between two swing support frames, the bottom in sofa base's cavity is equipped with the atress bracing piece that is parallel with long connecting rod, still is equipped with the crotch support frame between sofa main part and the sofa base, and one end of crotch support frame is articulated with sofa base, and the other end of crotch support frame and long connecting rod swing joint; through the effect of swing support frame and branch support frame, with the setting of sofa main part and sofa base with the mode layering of going up and down to settle the guest separation on the sofa bed.

Description

Folding structure suitable for sofa bed

Technical Field

The utility model relates to a domestic furniture articles for use field in living room specifically is a foldable structure suitable for sofa bed.

Background

Along with people's demand for living space is higher and higher, the party between relatives and friends, the interpersonal is also more and more, many times all can have the guest to live at home and lodge, and the house type design of present new house is generally less, many houses do not have enough guest to crouch and hold the guest and stay, the inconvenience of having caused the party to meet like this, so many people stay the room and will sleep on the sofa for the party, and ordinary sofa can only sleep alone usually, can not satisfy the demand that the guest stayed the room completely, so foldable sofa bed has just appeared, through the mode extension sofa area that expandes the sofa, reach the purpose that enough many people stayed the room.

However, in the prior art, the sofa is usually unfolded in a transverse unfolding manner, and although the purpose of expanding the area of the sofa is achieved, many inconveniences exist, and usually, the guests staying at home do not always reach a close relationship that can stay in parallel.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's sofa bed can not be with the effectual not enough of separating the settling of guest when guest needs stay, provides a foldable structure suitable for sofa bed, sets up settling on sofa bed of separating guest through the lift of layering.

The purpose of the utility model is mainly realized through the following technical scheme:

the folding structure suitable for the sofa bed comprises a sofa main body, wherein a sofa base is arranged below the sofa main body, the upper surface of the sofa base is inwards sunken to form a cavity with an upward opening, two swinging support frames are arranged between the sofa main body and the sofa base, the upper ends of the swinging support frames are fixedly connected with the bottom end of the sofa main body, the lower ends of the swinging support frames are fixedly connected with the inner walls of the short side plates of the sofa base, the sofa main body can ascend or descend through the swinging of the swinging support frames, the two swinging support frames are symmetrical about the central line of the sofa base, a long connecting rod is arranged between the two swinging support frames, the two swinging support frames are fixedly connected through the long connecting rod, a stress support rod parallel to the long connecting rod is arranged at the bottom in the cavity of the sofa base, and a branch, one end of the branch supporting frame is hinged with the sofa base, and the other end of the branch supporting frame is movably connected with the long connecting rod.

In the prior art, after a party is at home, the problem that guests stay at home is always puzzled to the vast home, and based on the problem, a pull-type folding sofa is produced to provide a larger staying space in a living room, but the situation is only suitable for staying by people who can rest together, and part of guests with physiological or habitual differences cannot be arranged at home for staying due to the fact that the guests are not suitable for resting together, so that great inconvenience is caused to the party; in the invention, the sofa bed is independently divided into an upper layer and a lower layer through the lifting function under the action of the swing support frames, the sofa main body on the upper layer can be effectively supported by the swing support frames and the branch support frames to bear the function of staying guests, and the guests can be stayed in the cavity of the sofa base on the lower layer, so that different guests can be separated by unfolding the sofa into a form of lying on the upper layer and lying on the lower layer, thereby achieving the purpose of staying multiple guests, the long connecting rod between the two swing support frames can synchronize the actions of the two swing support frames, so that the sofa main body can stably ascend and descend, the stress support rod can share the stress for the cavity of the sofa base, after the weight of the sofa main body on the upper layer is increased, the collapse of the cavity caused by applying excessive external force to the sofa base can not occur, and under the action of the swing support frames and, the sofa main body and the sofa base are arranged in a lifting mode in a layered mode, so that guests are separately arranged on the sofa bed.

Further, swing support frame includes four connecting rod subassemblies, four connecting rod subassemblies can splice to a rectangular frame, all are equipped with articulated subassembly between every two adjacent connecting rod subassemblies, wherein all are equipped with the bearing diagonal pole in two connecting rod subassemblies at a set of diagonal angle, and two bearing diagonal poles are parallel to each other, the inner wall of sofa base minor face curb plate is equipped with fixed connection's fixed plate, and the connecting rod subassembly that is located the no bearing diagonal pole of lower half is connected with the fixed plate, and the connecting rod subassembly that is located first half and has the bearing diagonal pole is connected with the sofa main part. Be equipped with power telescopic link between swing support frame and sofa base, power telescopic link is gas spring, and gas spring's one end is articulated with sofa base, and gas spring's the other end is articulated with swing support frame, through gas spring, can save more power when lifting up sofa main part to other springs can also play the supporting role to sofa main part, make sofa main part can bear bigger pressure, can rotate mutually through articulated subassembly between four connecting rod subassemblies folding, swing support frame can be by rectangle transform Z shape, thereby reach the purpose of accomodating sofa main part, and change into the rectangle from Z shape, can rise sofa main part and expand folding sofa, swing support frame can effectual rising and decline sofa main part to play good supporting role to sofa main part.

Furthermore, the connecting rod assembly comprises a 90-degree bending rod and two straight rods, the 90-degree bending rod is located between the two straight rods and fixedly connected with the two straight rods, and two ends of the inclined supporting rod are fixedly connected with the two straight rods respectively in the connecting rod assembly provided with the inclined supporting rod. When the swing support frame is in the rectangular frame state, the weight of the sofa main body above needs to be supported, in order to enable the swing support frame to effectively support the weight, the 90-degree bending rods are used as buffering to disperse the pressure of the rectangular frame, and the deformation of the rectangular frame is effectively avoided through the inclined support rods.

Further, the hinge assembly comprises a plurality of toothed plate structures, each toothed plate structure comprises a large toothed plate and a small toothed plate, the front end of each large toothed plate is provided with an arc groove, the two ends of each arc groove of each large toothed plate are respectively provided with a female limiting tooth, the front end of each small toothed plate is provided with a tooth head matched with the female limiting teeth, and the tooth head of each small toothed plate rotates around the center hole of each arc groove in the arc groove of each large toothed plate. In order to enable the hinge assembly to meet the requirement of rotating 90 degrees, the central angle corresponding to the arc groove is 90 degrees, and the large toothed plate and the small toothed plate are matched with each other, so that the toothed head is a male limiting tooth, when the male limiting tooth is clamped on the female limiting tooth, the large toothed plate and the small toothed plate cannot continue to rotate, the hinge assembly cannot continue to be folded, and the sofa main body above the hinge assembly is supported to a certain extent.

Furthermore, the branch support frame includes the main tributary vaulting pole, and the one end of main tributary vaulting pole is articulated with sofa base, and the other end of main tributary vaulting pole is equipped with two articulated branch bracing pieces, and the tip of one of them branch bracing piece articulates there is the jack catch that can block long connecting rod, and the tip of another branch bracing piece articulates there is the arc groove bracing piece, and the one end and the branch bracing piece of arc groove bracing piece are articulated, and the other end is opened has the arc groove that matches with the atress bracing piece. Because the supporting capacity of the swing supporting frame is limited, in order to strengthen the supporting capacity of the sofa main body and conveniently adapt to the situation that a heavier guest stays, a branch supporting frame is further arranged between the sofa main body and the sofa base, the hinge structure in the branch supporting frame adopts a hinge structure capable of being locked, after the clamping jaw is clamped on the long connecting rod and the arc groove of the arc groove supporting rod is clamped on the stress supporting rod, the hinge structure is locked to support the long connecting rod and disperse the stress through the stress supporting rod and the sofa base, the sofa main body caused by the deformation of the swing supporting frame is prevented from collapsing, and the pressure bearing capacity of the sofa main body is further improved.

Furthermore, the novel sofa comprises a ladder stand vertical support frame, wherein the bottom of the ladder stand vertical support frame is hinged with the bottom end of the side wall of the cavity of the sofa base, and the upper end of the ladder stand vertical support frame is connected with the bottom surface of the sofa main body through a lock catch. In order to ensure that the sofa main body cannot be laterally turned, the ladder stand vertical support frame is specially arranged, the ladder stand vertical support frame not only plays a role in supporting the sofa main body, but also provides a ladder stand for climbing the upper-layer sofa main body for personnel needing rest, and the situation that the upper layer is too high and is difficult to go up and down is avoided.

Furthermore, the side of the sofa main body is provided with a rotating side baffle, the bottom of the rotating side baffle is hinged with the bottom of the sofa main body, the bottom of the rotating side baffle is provided with a stop block protruding out of the rotating side baffle, and the stop block can be clamped by a ladder stand vertical support frame locked by a lock catch. Because the sofa main part is higher at the back position that rises, for the safety of the personnel that the protection is located the upper strata, set up and rotate the side shield, it can be through rotating inside the cavity of receiving in sofa base to rotate the side shield, also can rotate the upper surface vertical with the sofa main part, thereby it drops from the sofa main part to block the personnel that are located the upper strata, through the dog that rotates the side shield expenditure, can effectually erect the support frame through the cat ladder and limit the rotation that rotates the side shield, reach the purpose of the personnel's that the protection is located the upper strata safety.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

(1) through the effect of swing support frame and branch support frame, with the setting of sofa main part and sofa base with the mode layering of going up and down to settle the guest separation on the sofa bed.

(2) The long connecting rod is supported by the branch supporting frame, and the stress is dispersed through the stress supporting rod and the sofa base, so that the sofa main body is prevented from collapsing due to the deformation of the swing supporting frame, and the pressure bearing capacity of the sofa main body is further improved.

(3) The vertical support frame for the crawling ladder not only plays a role in supporting the sofa main body, but also provides the crawling ladder for people needing to have a rest to climb to the upper-layer sofa main body, avoids the situation that the upper layer is too high and is not easy to go up and down, and prevents the people on the upper layer from falling off from the sofa main body through the rotation side baffle, and can effectively limit the rotation of the rotation side baffle through the vertical support frame for the crawling ladder through the stop block for the rotation side baffle to be paid out, so that the purpose of protecting the safety of the people on the upper layer is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a structural schematic view of the storage state of the present invention;

FIG. 2 is a structural diagram of the present invention in an expanded state;

FIG. 3 is a schematic view of the structure of the swing supporting frame of the present invention;

FIG. 4 is a schematic view of the branch support frame of the present invention;

1-a sofa main body, 2-a sofa base, 3-a rotating side baffle, 4-a swinging support frame, 5-a branch support frame, 6-a power telescopic rod, 7-a stress support rod, 8-a ladder vertical support frame, 401-a hinge assembly, 402-a connecting rod assembly, 403-an inclined support rod, 404-a fixed plate, 501-a main support rod, 502-a branch support rod, 503-a claw and 504-an arc groove support rod.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

as shown in fig. 1 to 4, the folding structure suitable for a sofa bed comprises a sofa main body 1, a sofa base 2 is arranged below the sofa main body 1, the upper surface of the sofa base 2 is recessed inwards to form a cavity with an upward opening, two swing support frames 4 are arranged between the sofa main body 1 and the sofa base 2, the upper ends of the swing support frames 4 are fixedly connected with the bottom end of the sofa main body 1, the lower ends of the swing support frames 4 are fixedly connected with the inner walls of the short side plates of the sofa base 2, the sofa main body 1 can ascend or descend through the swing of the swing support frames 4, the two swing support frames 4 are symmetrical about the center line of the sofa base 2, a long connecting rod is arranged between the two swing support frames 4, the two swing support frames 4 are fixedly connected through the long connecting rod, a stress support rod 7 parallel to the long connecting rod is arranged at the, a branch supporting frame 5 is further arranged between the sofa main body 1 and the sofa base 2, one end of the branch supporting frame 5 is hinged with the sofa base 2, and the other end of the branch supporting frame 5 is movably connected with the long connecting rod; the novel sofa is characterized by further comprising a ladder stand vertical support frame 8, wherein the bottom of the ladder stand vertical support frame 8 is hinged with the bottom end of the side wall of the cavity of the sofa base 2, and the upper end of the ladder stand vertical support frame 8 is connected with the bottom surface of the sofa main body 1 through a lock catch; the side of sofa main part 1 is equipped with rotates side shield 3, and the bottom that rotates side shield 3 is connected with sofa main part 1's bottom, rotates side shield 3 and can carry out the rotation that is less than 270 around the junction to still be equipped with the dog that outstanding rotation side shield 3 in the bottom of rotating side shield 3, the dog can be blocked by the perpendicular support frame 8 of cat ladder that the hasp pinned.

In practical application, the sofa main body 1 is pulled to make the swinging support frame 4 swing, the sofa main body 1 can rise and keep parallel to the sofa base 2 under the action of the swinging support frame 4, the swinging support frame 4 is connected with the sofa base 2 through the power telescopic rod 6, the power telescopic rod 6 is a gas spring, one end of the gas spring is hinged with the sofa base 2, the other end of the gas spring is hinged with the swinging support frame 4, more labor can be saved when the sofa main body 1 is lifted through the gas spring, and other springs can also play a supporting role for the sofa main body 1, the gas spring in the utility model adopts the gas spring which accords with JB/T8064.2 standard technology, after the sofa main body 1 is pulled, the ladder stand support frame 8 positioned in the cavity of the sofa base 2 is lifted and the ladder stand support frame is fixed through the lock catch at the bottom of the sofa main body 1, before that, the rotating side baffle 3 is rotated to a proper position, the rotating side baffle 3 is limited in a mode that the stop block on the rotating side baffle 3 is clamped by the ladder stand vertical support frame 8, and then the branch support frame 5 is lifted and supports the column length connecting rod through the branch support frame 5.

Preferably, the swing support frame 4 comprises four connecting rod assemblies 402, the four connecting rod assemblies 402 can be spliced into a rectangular frame, a hinge assembly 401 is arranged between every two adjacent connecting rod assemblies 402, wherein, two diagonal support rods 403 are arranged in two connecting rod assemblies 402 at one diagonal, the two diagonal support rods 403 are parallel to each other, the inner wall of the short side plate of the sofa base 2 is provided with a fixed plate 404 which is fixedly connected, the connecting rod component 402 without the inclined supporting rod 403 positioned at the lower half part is connected with the fixed plate 404, the connecting rod component 402 with the inclined supporting rod 403 positioned at the upper half part is connected with the sofa main body 1, the connecting rod assembly 402 includes a 90 ° bending rod and two straight rods, the 90 ° bending rod is located between the two straight rods, in the connecting rod assembly 402 provided with the inclined supporting rod 403, two ends of the inclined supporting rod 403 are respectively fixedly connected with the two straight rods; the hinge assembly 401 comprises a plurality of toothed plate structures, each toothed plate structure comprises a large toothed plate and a small toothed plate, the front end of the large toothed plate is provided with an arc groove, two ends of the arc groove of the large toothed plate are respectively provided with a female limiting tooth, the front end of the small toothed plate is provided with a tooth head matched with the female limiting tooth, and the tooth head of the small toothed plate rotates around a center hole of the arc groove in the arc groove of the large toothed plate; can rotate folding each other through hinge assembly 401 between four connecting rod assembly 402, swing support frame 4 can be by the rectangle transform Z shape, thereby reach the purpose of accomodating sofa main part 1, and change into the rectangle from the Z shape, can rise sofa main part 1 and expand folding sofa, swing support frame 4 can effectual rising and decline sofa main part 1, and play good supporting role to sofa main part 1, in order to enable hinge assembly 401 to satisfy the requirement of rotating 90, the central angle that the circular arc groove corresponds is 90, and big pinion rack and little pinion rack mutually support, with the tooth head is public spacing tooth, when public spacing tooth joint is on female spacing tooth, big pinion rack and little pinion rack can not continue to rotate, make hinge assembly 401 can not continue folding, thereby play the supporting role to sofa main part 1 of top to a certain extent.

On the basis, the branch supporting frame 5 comprises a main supporting rod 501, one end of the main supporting rod 501 is hinged with the sofa base 2, the other end of the main supporting rod 501 is provided with two branch supporting rods 502 which are hinged, the end part of one branch supporting rod 502 is hinged with a claw 503 which can clamp a long connecting rod, the end part of the other branch supporting rod 502 is hinged with an arc groove supporting rod 504, one end of the arc groove supporting rod 504 is hinged with the branch supporting rod 502, and the other end of the arc groove supporting rod 504 is provided with an arc groove matched with the stressed supporting rod 7; the hinge structure in the branch support frame 5 adopts a hinge structure capable of being locked, the hinge structure related to the claw 503 in the branch support frame 5 adopts a conventional hinge structure, which is not described herein, and the hinge structure related to the main support rod 501 and the arc groove support rod 504 adopts the hinge assembly 401, after the claw 503 is clamped on the long connecting rod and the arc groove of the arc groove support rod 504 is clamped on the stressed support rod 7, the hinge structure is locked to support the long connecting rod, and the stress is dispersed through the stressed support rod 7 and the sofa base 2, so that the sofa main body 1 is prevented from collapsing due to the deformation of the swing support frame 4, and the pressure bearing capacity of the sofa main body 1 is further improved.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. The folding structure suitable for the sofa bed is characterized by comprising a sofa main body (1), a sofa base (2) is arranged below the sofa main body (1), the upper surface of the sofa base (2) is inwards sunken to form a cavity with an upward opening, two swinging support frames (4) are arranged between the sofa main body (1) and the sofa base (2), the upper ends of the swinging support frames (4) are fixedly connected with the bottom end of the sofa main body (1), the lower ends of the swinging support frames (4) are fixedly connected with the inner walls of the short side plates of the sofa base (2), the sofa main body (1) can ascend or descend through the swinging of the swinging support frames (4), the two swinging support frames (4) are symmetrical about the central line of the sofa base (2), long connecting rods are arranged between the two swinging support frames (4), and the two swinging support frames (4) are fixedly connected through the long connecting rods, the bottom in the cavity of the sofa base (2) is provided with a stress supporting rod (7) parallel to the long connecting rod, a branch supporting frame (5) is further arranged between the sofa main body (1) and the sofa base (2), one end of the branch supporting frame (5) is hinged with the sofa base (2), and the other end of the branch supporting frame (5) is movably connected with the long connecting rod.

2. The folding structure for sofa beds as claimed in claim 1, wherein the swing support frame (4) comprises four connecting rod assemblies (402), the four connecting rod assemblies (402) can be spliced into a rectangular frame, a hinge assembly (401) is arranged between every two adjacent connecting rod assemblies (402), wherein an inclined supporting rod (403) is arranged in each two connecting rod assemblies (402) at a set of opposite corners, the two inclined supporting rods (403) are parallel to each other, the inner wall of the short side plate of the sofa base (2) is provided with a fixed connecting fixing plate (404), the connecting rod assembly (402) without the inclined supporting rod (403) at the lower half part is connected with the fixed plate (404), and the connecting rod assembly (402) with the inclined supporting rod (403) at the upper half part is connected with the sofa main body (1).

3. The folding structure for sofa beds as claimed in claim 2, wherein the connecting rod assembly (402) comprises a 90 ° bending rod and two straight rods, the 90 ° bending rod is located between and fixedly connected with the two straight rods, and in the connecting rod assembly (402) provided with the inclined supporting rod (403), both ends of the inclined supporting rod (403) are fixedly connected with the two straight rods respectively.

4. The folding structure for sofa beds as claimed in claim 2, wherein the hinge assembly (401) comprises a plurality of toothed plate structures, each toothed plate structure comprises a big toothed plate and a small toothed plate, the front end of the big toothed plate has a circular arc groove, the two ends of the circular arc groove of the big toothed plate are respectively provided with a female limit tooth, the front end of the small toothed plate has a tooth head matched with the female limit tooth, and the tooth head of the small toothed plate rotates around the central hole of the circular arc groove in the circular arc groove of the big toothed plate.

5. The folding structure suitable for the sofa bed according to claim 1, wherein the branch supporting frame (5) comprises a main supporting rod (501), one end of the main supporting rod (501) is hinged with the sofa base (2), the other end of the main supporting rod (501) is provided with two branch supporting rods (502) which are hinged, the end of one branch supporting rod (502) is hinged with a claw (503) which can clamp the long connecting rod, the end of the other branch supporting rod (502) is hinged with an arc groove supporting rod (504), one end of the arc groove supporting rod (504) is hinged with the branch supporting rod (502), and the other end is provided with an arc groove which is matched with the stressed supporting rod (7).

6. The folding structure suitable for the sofa bed according to claim 1, further comprising a ladder vertical support frame (8), wherein the bottom of the ladder vertical support frame (8) is hinged with the bottom end of the cavity side wall of the sofa base (2), and the upper end of the ladder vertical support frame (8) is connected with the bottom surface of the sofa main body (1) through a lock catch.

7. The folding structure for sofa bed according to claim 6, wherein the sofa body (1) is provided with a turning side shield (3) at the side, the bottom of the turning side shield (3) is connected with the bottom of the sofa body (1), the turning side shield (3) can rotate less than 270 degrees around the connection, and a stopper protruding the turning side shield (3) is further provided at the bottom of the turning side shield (3), and the stopper can be caught by the vertical support frame (8) locked by the latch.

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