Folding hinge connecting structure of sofa bed and sofa bed

Abstract

The utility model provides a folding hinge connecting structure of a sofa bed, which comprises a left armrest, a right armrest and a bed frame, and the bed frame comprises a first bed frame and a second bed frame which are sequentially arranged along the width direction of the armrests; the folding hinge comprises a first supporting arm and a second supporting arm, one end of the first supporting arm is hinged to one end of the second supporting arm, the other end of the first supporting arm is fixedly connected with the left armrest or the right armrest, and the end, away from the first supporting arm, of the second supporting arm extends to form a supporting face used for supporting the second bed frame. The second bed frame is provided with a first connecting column matched with the first connecting groove; the first connecting groove is divided into a first part and a second part which are communicated with each other, so that the folding hinge can be switched between a locking position and a moving position; the tail end of the first connecting column extends outwards in the radial direction to form a circle of flange, the diameter of the first part is larger than that of the flange, and the diameter of the second part is smaller than that of the flange. When the folding hinge is in the movable position, the flange is located on the first part, and when the folding hinge is in the locking position, the flange slides into the second part.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field especially, it relates to a sofa bed's folding hinge connecting structure and sofa bed. BACKGROUND

[0002] The folding sofa bed is a kind of multifunctional furniture, it combines the function of sofa and bed, can be folded into sofa shape when not using, save space, suitable for small household or need temporary increase bed occasion.It is usually realized the conversion of sofa and bed by hinge.Currently the folding hinge of folding sofa bed is connected by one end and the armrest of sofa bed fixed connection, the other end and backrest frame fixed connection mode realize connection.However this connection mode, backrest frame and armrest are fixed, cannot be folded when idle, it is inconvenient to disassemble, occupy space. SUMMARY

[0003] The utility model provides a sofa bed's folding hinge connecting structure and sofa bed, and it is convenient to disassemble, save transportation space to solve the technical problems that the utility model wants to solve.

[0004] In order to solve the above technical problem, the utility model provides a sofa bed's folding hinge connecting structure, including left armrest, right armrest and bed frame, the bed frame includes first bed frame and second bed frame that are sequentially arranged along the width direction of armrest;The folding hinge includes the first branch and second branch of one end hinged connection, the other end of the first branch is fixedly connected with the left armrest or right armrest, it is characterized in that, the second branch is extended with the support surface for supporting second bed frame at one end away from the first branch, first connecting groove is arranged on the support surface, and the second bed frame is provided with the first connecting column matched with the first connecting groove;

[0005] The first connecting groove is divided into the first part and the second part that are interconnected, to make the folding hinge can switch in locking position and active position;

[0006] The end of the first connecting column is extended with a ring flange along the radial direction, the diameter of the first part is greater than the flange, and the diameter of the second part is less than the flange;When the folding hinge is in the active position, the flange is located in the first part, and when the folding hinge is in the locking position, the flange slides into the second part.

[0007] In some embodiments, a first locking hole is further provided on the support surface.

[0008] In some embodiments, a second locking hole matched with the first locking hole is provided on the second bed frame.

[0009] In some embodiments, a first locking member is further included, and when the folding hinge is in the locking position, the first locking member passes through the first locking hole and the second locking hole and locks the folding hinge to the second bed frame.

[0010] The utility model discloses still provide a sofa bed, its characterized in that, including above-mentioned sofa bed's folding hinge connecting structure.

[0011] In some embodiments, the left armrest and the right armrest extend in a direction towards each other to support a support rod of the first bed frame.

[0012] In some embodiments, a second connecting groove is arranged on the support rod, and a second connecting column is arranged on the first bed frame and matched with the second connecting groove.

[0013] In some embodiments, the second connecting groove is divided into a third part and a fourth part in communication with each other, so that the first bed frame is switched between the locking position and the active position.

[0014] In some embodiments, an end of the second connecting column extends a flange radially outward, the third part has a diameter greater than the flange of the second connecting column, and the fourth part has a diameter less than the flange of the second connecting column.

[0015] In some embodiments, when the first bed frame is in the active position, the flange of the second connecting column is located in the third part, and when the first bed frame is in the locking position, the flange of the second connecting column slides into the second part.

[0016] In some embodiments, a third locking hole is arranged on the stand of the left armrest and the right armrest.

[0017] In some embodiments, fourth locking holes matched with the third locking hole are arranged on the left and right sides of the first bed frame.

[0018] In some embodiments, a second locking member is further included, and when the first bed frame is in the locking position, the second locking member passes through the third locking hole and the fourth locking hole and locks the first bed frame to the left armrest and the right armrest.

[0019] Compared with the prior art, the utility model has the beneficial effects that by arranging the first connecting groove on the second arm support surface of the folding hinge, the first connecting column with the flange on the second bed frame, the first connecting groove is divided into the first part and the second part in communication, the diameter of the first part is greater than the diameter of the flange, the diameter of the second part is less than the diameter of the flange, and the flange can slide between the first part and the second part, so that the folding hinge can be switched between the active position and the locking position, the second bed frame and the folding hinge are convenient to disassemble and assemble, and transportation space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Figure 4 is a schematic view of a sofa bed without a bed frame in a preferred embodiment of the present application;

[0021] Figure 2 Figure 5 is a schematic view of a sofa bed with a first bed frame installed in a preferred embodiment of the present application;

[0022] Figure 3 Figure 6 is a schematic view of a sofa bed with a first bed frame in a locked position in a preferred embodiment of the present application;

[0023] Figure 4 Figure 7 is a schematic view of a sofa bed with a second bed frame installed in a preferred embodiment of the present application;

[0024] Figure 5 Figure 8 is a schematic view of a sofa bed with a second bed frame in a locked position in a preferred embodiment of the present application;

[0025] Figure 6 Figure 9 is a perspective view of a sofa bed in a preferred embodiment of the present application;

[0026] Figure 7 Figure 10 is another perspective view of a sofa bed in a preferred embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of 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.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship described based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "set", "sleeve / joint", "connect" and the like should be understood broadly, for example, "connect", can be wall-mounted connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] The embodiment provides a sofa bed, including bed plate 9, mattress 1, folding hinge connecting structure, bed plate 9 is divided into the first bed plate 94 connected in the first bed frame 5, and the second bed plate 95 connected in the second bed frame 6.

[0031] The folding hinge connecting structure includes left armrest 3, right armrest 4 and bed frame, the bed frame includes first bed frame 5 and second bed frame 6 sequentially arranged along the width direction of armrest;The folding hinge 7 includes first branch 71 and second branch 72 hingedly connected at one end, the other end of the first branch 71 is fixedly connected with the left armrest 3 or right armrest 4, the second branch 72 is extended with the first branch 71 away from one end and is provided with a supporting surface 721 for supporting the second bed frame 6, the supporting surface 721 is provided with a first connecting groove, and the second bed frame 6 is provided with a first connecting column 62 matched with the first connecting groove;The first connecting groove is divided into a first part and a second part in communication, so that the folding hinge 7 can be switched between the locking position and the active position;

[0032] The end of the first connecting column 62 extends a flange radially outward, the diameter of the first part is greater than the flange, and the diameter of the second part is less than the flange;When the folding hinge 7 is in the active position, the flange is located in the first part, and when the folding hinge 7 is in the locking position, the flange slides into the second part.

[0033] When connecting the second bed frame 6 and the folding hinge 7, the first connecting column 62 is inserted into the first part, and then the first connecting column is pushed into the second part along the horizontal direction, so that the flange and the second part are limited to fit and complete installation.When the second bed frame 6 and the folding hinge 7 are disassembled, the first connecting column 62 is pushed from the second part to the first part, and at this time the flange slides into the first part to release the limiting fit and complete disassembly.

[0034] In order to further increase the connection stability of the second bed frame and the folding hinge, a threaded hole is arranged on the support surface 721 as a first locking hole. A threaded hole 61 is arranged on the second bed frame 6 as a second locking hole matched with the first locking hole. A bolt is further included as a first locking member, which passes through the first and second locking holes and locks the folding hinge 7 to the second bed frame 6 when the folding hinge 7 is in the locked position.

[0035] In order to install the first bed frame 5, in the present embodiment, the left armrest 3 and the right armrest 4 extend in the direction of approaching each other to support rods 31, 41 for supporting the first bed frame. The support rods 31, 41 are provided with a second connecting groove 311, and the first bed frame 5 is provided with a second connecting column 52 matched with the second connecting groove 311. The second connecting groove 311 is divided into a third part 3111 and a fourth part 3112 in communication with each other, so that the first bed frame 5 can be switched between the locked position and the active position. The end of the second connecting column 52 extends outward in a radial direction to form a flange 521, the diameter of the third part 3111 is greater than that of the flange 521 of the second connecting column 52, and the diameter of the fourth part 3112 is smaller than that of the flange 521 of the second connecting column 52. When the first bed frame 5 is in the active position, the flange 521 of the second connecting column 52 is located in the third part 3111, and when the first bed frame 5 is in the locked position, the flange 521 of the second connecting column 52 slides into the fourth part 3112.

[0036] When installing the first bed frame 5, the second connecting column 52 of the first bed frame 5 is inserted into the third part 3111, and then the second connecting column 52 is pushed into the fourth part 3112 in the horizontal direction, so that the flange 521 of the second connecting column 52 is limited and matched with the fourth part 3112 to complete the installation. When disassembling the first bed frame 5, the second connecting column 52 is pushed out of the fourth part 3112 to the third part 3111, at which time the flange 521 of the second connecting column 52 is disengaged from the fourth part 3112 to complete the disassembly.

[0037] In order to further fix the first bed frame 5 and the armrests, threaded holes 421 are arranged on the upright columns 32, 42 of the left armrest 3 and the right armrest 4 as third locking holes. Threaded holes 53 are arranged on the left and right sides of the first bed frame 5 as fourth locking holes matched with the third locking holes. A bolt is further included as a second locking member, which passes through the third and fourth locking holes and locks the first bed frame to the left armrest 3 and the right armrest 4 when the first bed frame is in the locked position.

[0038] The above merely describes a preferred embodiment of the present application, and the design concept of the present application is not limited thereto, and any person skilled in the art, within the technical scope disclosed by the present application, can make non-essential changes to the present application using the concept, and such changes shall be deemed to fall within the protection scope of the present application.

Claims

1. A folding hinge connection structure of a sofa bed, comprising a left armrest, a right armrest and a bed frame, the bed frame comprising a first bed frame and a second bed frame arranged in sequence along the width direction of the armrests; the folding hinge comprising a first branch arm and a second branch arm hingedly connected at one end, the other end of the first branch arm being fixedly connected with the left armrest or the right armrest, characterized in that, The second supporting arm extends from one end of the first supporting arm and has a supporting surface for supporting a second bed frame, the supporting surface is provided with a first connecting slot, and the second bed frame is provided with a first connecting column matched with the first connecting slot; The first connecting slot is divided into a first part and a second part which are in communication with each other, so that the folding hinge can be switched between the locking position and the active position; The first connecting column has a flange extending radially outward at the end thereof, the first part has a diameter greater than the flange, and the second part has a diameter smaller than the flange; when the folding hinge is in the active position, the flange is located in the first part, and when the folding hinge is in the locking position, the flange slides into the second part.

2. The folding hinge connection structure of a sofa bed according to claim 1, characterized in that, The supporting surface is further provided with a first locking hole.

3. The folding hinge connection structure of a sofa bed according to claim 2, wherein The second bed frame is provided with a second locking hole matched with the first locking hole.

4. The folding hinge connection structure of a sofa bed according to claim 3, wherein The folding hinge further comprises a first locking member, when the folding hinge is in the locking position, the first locking member passes through the first locking hole and the second locking hole and locks the folding hinge to the second bed frame.

5. A sofa bed, characterized in that The folding hinge connecting structure of the sofa bed comprises the folding hinge connecting structure of any one of claims 1-4.

6. The sofa bed of claim 5, wherein, The left armrest and the right armrest extend in a direction close to each other and have a supporting rod for supporting the first bed frame.

7. The sofa bed of claim 6, wherein, The supporting rod is provided with a second connecting slot, and the first bed frame is provided with a second connecting column matched with the second connecting slot.

8. The sofa bed of claim 7, wherein, The second connecting slot is divided into a third part and a fourth part which are in communication with each other, so that the first bed frame can be switched between the locking position and the active position.

9. The sofa bed of claim 8, wherein, The second connecting column has a flange extending radially outward at the end thereof, the third part has a diameter greater than the flange of the second connecting column, and the fourth part has a diameter smaller than the flange of the second connecting column.

10. The sofa bed of claim 9, wherein, When the first bed frame is in the active position, the flange of the second connecting column is located in the third part, and when the first bed frame is in the locking position, the flange of the second connecting column slides into the second part.

11. The sofa bed of claim 5, wherein, The upright column of the left armrest and the right armrest is provided with a third locking hole.

12. The sofa bed of claim 11, wherein, The left side and the right side of the first bed frame are provided with a fourth locking hole matched with the third locking hole.

13. The sofa bed of claim 12, wherein, The first bed frame further comprises a second locking member, when the first bed frame is in the locking position, the second locking member passes through the third locking hole and the fourth locking hole and locks the first bed frame to the left armrest and the right armrest.

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