CN213487952U

CN213487952U - Folding sofa bed structure

Info

Publication number: CN213487952U
Application number: CN202021231053.1U
Authority: CN
Inventors: 章亮; 黄发金; 朱正领; 陈松平
Original assignee: Anji Yongyi Shangpin Furniture Co ltd
Current assignee: Anji Yongyi Shangpin Furniture Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-06-22
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a folding sofa bed structure, which comprises a movable frame and a handrail component, wherein the rear end of the handrail component is provided with a locating part, a first folding frame and a second folding frame are arranged between the movable frame and the handrail component, the two ends of the second folding frame are respectively hinged with the rear end of the movable frame and the front end of the first folding frame, and the two sides of the first folding frame are hinged with the handrail component; a sliding limiting mechanism comprising a roller and a guiding limiting block is arranged between the movable frame and the handrail component; in a furled state, the first and second supporting frames are in a furling trend and integrally limited at the position of the limiting part, and the roller rolls to the guide limiting block and is in clamping fit with the guide limiting block; in the unfolding state, the movable frame is stretched to the front of the handrail component, and the roller slides out of the guide limiting block until the first folding frame and the second folding frame are flatly unfolded at the same height; the sofa bed is switched between a furled state and an unfolded state by clamping the idler wheels with the guide limiting blocks or sliding the idler wheels off the guide limiting blocks, so that the sofa bed is switched into a more relaxed state.

Description

Folding sofa bed structure

Technical Field

The utility model relates to a sofa field, in particular to folding sofa bed structure.

Background

As the living standard of people is continuously improved, most families can purchase sofa beds, and the sofa beds are converted into beds when used for sand and guests stay at night at ordinary times, so that the expenditure is saved, the space occupation is reduced, and the space utilization rate is increased.

The conversion modes of the sofa bed on the market among the sofas and the beds are various, and mainly comprise a folding type, a turnover type and a stretching type; the folding sofa bed is designed by utilizing the joint principle, is convenient and saves the volume and space, and can be folded and unfolded in various folding modes; however, most sofa beds are complex in structure and inconvenient to operate, large force is needed to pull the sofa bed or turn the sofa bed over, operation is strenuous for children and women at home, and the sofa bed is not suitable for general crowds.

Disclosure of Invention

The utility model overcomes exist among the above-mentioned prior art not enough, provide a brief practicality, the light folding sofa bed structure of operation, this sofa bed structure sets up the slip stop gear including gyro wheel and direction stopper between movable frame and handrail component, through gyro wheel and direction stopper joint or gyro wheel landing direction stopper realize that sofa bed changes between draw in state and expansion state, and need not to overturn the frame, make the sofa bed state conversion degree of difficulty show the reduction.

The technical scheme of the utility model is realized like this:

a folding sofa bed structure comprises a movable frame and armrest components on the left side and the right side, wherein the rear ends of the armrest components on the left side and the right side are provided with limit pieces; a sliding limiting mechanism is arranged between the movable frame and the handrail assembly, the sliding limiting mechanism comprises a roller and a guide limiting block, the roller is arranged on one of the movable frame or the handrail assembly, and the guide limiting block is arranged on the other of the handrail assembly or the movable frame; in a furled state, the first and second supporting frames are in a furling trend and integrally limited at the position of the limiting part, and the roller rolls onto the guide limiting block and is in clamping fit with the guide limiting block; under the expansion state, the movable frame stretches to the front of the handrail assembly and the rollers slide out of the guide limiting blocks, and the second folding frame and the first folding frame rotate mutually to be tiled and expanded at the same height as the first folding frame and the second folding frame. The utility model discloses a folding sofa bed structure is through setting up the slip stop gear including gyro wheel and direction stopper between movable frame and handrail assembly, through gyro wheel and direction stopper joint or gyro wheel landing direction stopper realize that the sofa bed switches between folded in state and expansion state, only need promote rolling and sliding and can accomplish, simple structure and light and handy laborsaving; and under the furled state, the first supporting frame and the second supporting frame are in a folding trend and integrally limited at the position of the limiting part, so that the frame does not need to be unfolded through manual overturning.

Preferably, the movable frame comprises a movable frame and a third folding frame, the third folding frame is positioned above the movable frame, the rollers are arranged on the left side and the right side of the third folding frame, and the guide limiting blocks are symmetrically arranged on the inner side surfaces of the left handrail assembly and the right handrail assembly.

Preferably, the guide limiting block protrudes inwards from the inner side surface of the handrail component, the guide limiting block comprises a high-height raised part and a low-height inclined part positioned at the front end of the raised part, a slope is formed on the upper end surface of the inclined part, and a limiting groove is formed at the upper end of the raised part; when the unfolding state and the folding state are switched, the roller rolls into the limiting groove along the slope or moves reversely. Through setting up spacing groove and slope for can effectively lock sofa bed under the state of drawing in, can be lighter and more handy laborsaving at sofa bed expansion process.

Preferably, the limiting part is a supporting rod, two sides of the supporting rod are respectively connected and fixed at the rear end of the armrest component, and the supporting rod is positioned at the upper part of the armrest component; in a furled state, the first folding frame is lapped backwards on the limiting piece, and the second folding frame is in an inclined state. The locating part sets up to the bracing piece, can play the effect of restriction first frame, can also make and keep the steady support situation between the handrail subassembly.

Preferably, two sides of the rear end of the movable frame are respectively provided with a rotating connecting piece, and two sides of the front end of the second folding frame are hinged with the rotating connecting pieces.

Preferably, the movable frame comprises a front baffle plate and supporting frames, the front baffle plate is vertically arranged at the front end of the movable frame, the supporting frames are arranged on the left side and the right side of the movable frame, and the rotary connecting piece is fixedly connected to the rear of the supporting frames. The front baffle can shield the space below the movable frame, so that the whole body is more attractive.

Preferably, the supporting frame comprises an upper cross rod, a lower cross rod, a front upright rod and a rear upright rod, the upper cross rod and the lower cross rod are protruded backwards from the rear upright rod, the rotating connecting piece is connected and fixed at the rear end of the upper cross rod, and the front end and the rear end of the lower cross rod are respectively provided with a vertical downward trundle. The truckles make the movable frame move more easily and labor-saving.

Preferably, the first folding frame and the second folding frame are square frames, and the front end of the first folding frame is hinged and matched with the rear end of the second folding frame through a hinge. The hinge is hinged with each other, so that the hinged part is more stable.

Preferably, when the foldable frame is switched between the unfolded state and the folded state, an included angle between a plane where the second folding frame is located and a horizontal plane is in a range of 0-70 degrees.

Preferably, two sides of the first folding frame are respectively provided with a limiting clamping seat, the rear end of the raised part is provided with a transverse baffle plate, and the limiting clamping seats are configured to be downwards abutted against the upper end surface of the transverse baffle plate when the first folding frame is unfolded to be in a horizontal state. The first folding frame is limited by the limiting clamping seat and the transverse baffle plate to continue to overturn, and the folding device is simple in structure and obvious in effect.

Preferably, the first, second and third folding frames are respectively and uniformly provided with a supporting net, an S spring, an elastic band or a rubber band for supporting. Set up supporting network, S spring, elastic webbing or rubber band and can give better supporting effect for people, experience more comfortablely.

Preferably, a horizontally arranged supporting frame is further arranged between the left handrail component and the right handrail component, the supporting frame is located behind and below the handrail components, the supporting frame is fixedly connected with the handrail components through connecting plates on two sides, and the front ends of the connecting plates are hinged with two sides of the rear end of the first folding frame.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

the utility model provides a sofa bed with a turnover structure, compared with the prior art, a sliding limiting mechanism is arranged between a front end movable frame and a handrail component of the sofa bed, the sliding limiting mechanism comprises a roller and a guide limiting block, a limiting groove and a slope are arranged on the limiting guide block, under the furled state, the first and the second supporting frames are in the folding trend and are integrally limited at the position of the limiting block, the roller rolls into the limiting groove and is in clamping fit with the limiting groove; in the unfolding state, the movable frame is stretched to the front of the armrest component, the rollers slide out of the guide limiting block along the slope, the second folding frame and the first folding frame rotate mutually until the first folding frame and the second folding frame are tiled and unfolded at the same height, and the rollers roll lightly and labor-saving, so that the difficulty of the sofa bed in the conversion process is obviously reduced, and the sofa bed is more suitable for most people to operate and use; and under the furled state, the first folding frame and the second folding frame are integrally folded and limited on the limiting part, so that the frame does not need to be turned or folded during conversion, and the operation steps are saved.

Drawings

Fig. 1 is a schematic perspective view of a sofa bed in a folded state according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the sofa bed in the embodiment of the present invention in a half-unfolded state;

fig. 3 is a schematic perspective view of the sofa bed according to the embodiment of the present invention in the unfolded state;

fig. 4 is a schematic perspective view of a movable frame according to an embodiment of the present invention;

fig. 5 is a schematic perspective view illustrating a connection between the movable frame and the second folding frame according to an embodiment of the present invention;

fig. 6 is a schematic perspective view illustrating a connection between the handle assembly and the first folding frame according to an embodiment of the present invention;

fig. 7 is a schematic perspective view illustrating a connection between the armrest assembly and the first folding frame and a connection between the armrest assembly and the second folding frame according to an embodiment of the present invention;

fig. 8 is a schematic view of a connection structure of the armrest assembly and the back of the movable frame according to the embodiment of the present invention;

the figures are numbered: a movable frame 1; a handrail assembly 2; a first folding frame 3; a second folding frame 4; a sliding limiting mechanism 5; a limiting member 6; a movable base 7; a third folding frame 8; a roller 5 a; a guide stopper 5 b; a front baffle 9; a support frame 10; a front upright rod 11; a rear upright 12; an upper cross bar 13; a bottom rail 14; a caster 15; a rotation connecting plate 16; a raised portion 17; an inclined portion 18; a ramp 19; a limiting groove 20; a support frame 21; a connecting plate 22; a U-shaped connecting seat 23; a hinge 24; a support bar 25; a limit clamp seat 26; a cross baffle 27; a shaft 28.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1-8, the utility model provides a folding sofa bed structure, including movable frame 1 and handrail component 2, be equipped with first folding frame 3, the folding frame 4 of second between movable frame 1 and the handrail component 2, first folding frame 3, the folding frame 4 of second be the frame of square type. A sliding limiting mechanism 5 is arranged between the movable frame 1 and the handrail component 2, the sliding limiting mechanism 5 comprises a roller 5a and a guiding limiting block 5b, and a limiting block 6 is arranged at the rear end of the handrail component 2.

As shown in fig. 1-5, the movable frame 1 is located at the front end of the sofa bed, the movable frame 1 includes a movable base 7 and a third folding frame 8 located above the movable base 7, the movable base 7 includes a front baffle 9 with a vertically arranged front end and a supporting frame 10 connected to two sides of the front baffle 9; the supporting frame 10 comprises a front upright post 11, a rear upright post 12, an upper cross bar 13 and a lower cross bar 14, and the upper cross bar 13 and the lower cross bar 14 both protrude backwards from the rear upright post 12; the front end and the rear end of the bottom of the lower cross bar 14 are respectively connected with a caster 15 which faces downwards vertically, and the caster 15 rolls along the ground in the state change process of the sofa bed; a rotating connecting plate 16 is arranged at the rear end of the upper cross rod 13, and the rotating connecting plate 16 is fixedly connected to the side surface of the rear end of the upper cross rod 13; the two sides of the rear end of the third folding frame 8 are respectively hinged with the front end of a rotating connecting plate 16, the front end of the third folding frame 8 is lapped on the upper end of the front upright rod 11, and the third folding frame 8 can be fixed on the movable base 7 through screws or the third folding frame 8 is turned upwards to be opened; the front end both sides of second folding frame 4 respectively with rotate connecting plate 16 rear end articulated to after second folding frame 4 and third folding frame 8 articulate with rotation connecting plate 16 respectively, leave the clearance between the front end of second folding frame 4 and the rear end of third folding frame 8, make second folding frame 4 in the rotation process, the front end of second folding frame 4 and the rear end of third folding frame 8 do not take place to interfere.

As shown in fig. 2, 3, 4 and 8, the rollers 5a are connected and fixed on two sides of the third folding frame 8, the guide limit blocks 5b are symmetrically arranged on the inner side surfaces of the left and right handrail assemblies 2, and the guide limit blocks 5b protrude inwards to the inner side surfaces of the handrail assemblies 2; the guide limiting block 5b comprises a raised part 17 with a higher height at the middle position and a tilted part 18 with a lower height at the front end of the raised part 17, a slope 19 is formed at the upper end surface of the tilted part 18, a limiting groove 20 is arranged at the upper end of the raised part 17, and when the sofa bed is switched between the unfolding state and the folding state, the roller 5a rolls into the limiting groove 20 along the slope 19 or moves reversely.

As shown in fig. 2, 3 and 7, the first folding frame 3 is located between the armrest assemblies 2 at the left and right sides, and two sides of the rear end of the first folding frame 3 are respectively in running fit with the armrest assemblies 2, specifically: a horizontally arranged supporting frame 21 is further arranged between the left handrail component 2 and the right handrail component 2, the supporting frame 21 is positioned at the rear lower part of the handrail component 2, two sides of the supporting frame 21 are respectively connected with a connecting plate 22, the connecting plates 22 are fixedly connected with the handrail component 2 through screws, two sides of the rear end of the first folding frame 3 are respectively provided with a U-shaped connecting seat 23, the front end of the U-shaped connecting seat 23 is clamped on two sides of the first folding frame 3 and is fixedly connected with the first folding frame 3 through screws, the rear end of the U-shaped connecting seat 23 protrudes out of the first folding frame 3, and a rotating shaft 28 is arranged at the rear end of the U-shaped connecting seat 23 and the front end of the connecting plates in a penetrating manner so as to enable the first folding frame 3 to be rotatably connected with the handrail component 2; and the front end of the first folding frame 3 is in hinged fit with the rear end of the second folding frame 4 through a hinge 24, and when the rotation angle configured by the hinge 24 is switched between an unfolding state and a folding state, the included angle range between the plane where the second frame is located and the horizontal plane is 0-70 degrees.

As shown in fig. 2, 3, 6, and 7, the limiting member is a supporting rod 25, two sides of the supporting rod 25 are respectively connected and fixed to the rear end of the armrest assembly 2, and the supporting rod 25 is located at the upper portion of the armrest assembly 2; when the sofa bed is in a furled state, the first folding frame and the second folding frame are in a furling trend, the first folding frame is lapped on the supporting rod backwards, and the second folding frame is in an inclined state; and still be equipped with spacing cassette 26 respectively on the both sides of first folding frame 3, spacing cassette 26 be the U template, the open end of spacing cassette 26 is connected and is fixed on the first folding frame 3 outside, the position of spacing cassette 26 correspond with the position of direction stopper 5b, specifically mean: the rear end of the guide limiting block 5b is further provided with a transverse baffle 27, the transverse baffle 27 is connected to the rear end of the raised portion 17, the height of the transverse baffle 27 is lower than that of the raised portion 17, and when the first folding frame 3 is spread and unfolded, the limiting clamping seat 26 is abutted downwards to the upper end of the transverse baffle 27 to limit the first folding frame 3 to continue rotating.

And the first, the second and the

third folding frames

3, 4 and 8 are respectively and uniformly distributed with flexible supporting nets which play a supporting role, and the flexible supporting nets can provide a good supporting role, so that the human body is more comfortable when in use.

In summary, the sofa bed conversion process of the turnover structure is as follows: as shown in fig. 1, at this time, the sofa bed is in a folded state, the first folding frame 3 and the second folding frame 4 are in a folding trend, the first folding frame 3 is lapped on the limiting member 6, and at this time, the roller 5a is positioned in the limiting groove 20 on the guide limiting member 5b and the two are in snap fit; the folding sofa can be normally used as a sofa, the second folding frame 4 is in an inclined state, the plane where the second folding frame 4 is located forms a backrest surface, and after the flexible cushion is placed, the first folding frame 3 and the second folding frame 4 can form the backrest frame; in the conversion process, as shown in fig. 2, the movable frame 1 is pulled out forwards, and in the process that the movable frame 1 is pulled out forwards, the movable frame 1 drives the roller 5a to leave the limiting groove 20, the roller 5a slides out of the guide limiting block 5b along the slope 19, so that the front end of the second folding frame 4 moves forwards, and the angle between the second folding frame 4 and the first folding frame 3 is increased; as shown in fig. 3, the movable frame 1 is pulled out until the first folding frame 3 and the second folding frame 4 are laid and unfolded at the same height, at which time the sofa bed is finally converted into an unfolded state and can be used as a bed.

Claims

1. A folding sofa bed structure which is characterized in that: the foldable handrail comprises a movable frame and handrail components on the left side and the right side, wherein the rear ends of the handrail components on the left side and the right side are provided with a limiting piece, a first folding frame and a second folding frame are arranged between the movable frame and the handrail components, the front end of the second folding frame is hinged to the rear end of the movable frame, two sides of the first folding frame are respectively hinged to the handrail components, and the front end of the first folding frame is hinged to the rear end of the second folding frame; a sliding limiting mechanism is arranged between the movable frame and the handrail assembly, the sliding limiting mechanism comprises a roller and a guide limiting block, the roller is arranged on one of the movable frame or the handrail assembly, and the guide limiting block is arranged on the other of the handrail assembly or the movable frame; in a furled state, the first folding frame and the second folding frame are in a furling trend and integrally limited at the position of the limiting part, and the roller rolls onto the guide limiting block and is in clamping fit with the guide limiting block; under the expansion state, the movable frame stretches to the front of the handrail assembly and the rollers slide out of the guide limiting blocks, and the second folding frame and the first folding frame rotate mutually to be tiled and expanded at the same height as the first folding frame and the second folding frame.

2. A folding sofa bed structure according to claim 1, characterized in that: the movable frame comprises a movable base and a third folding frame, the third folding frame is located above the movable base, the rollers are arranged on the left side and the right side of the third folding frame, and the guide limiting blocks are symmetrically arranged on the inner side faces of the left handrail component and the right handrail component.

3. A folding sofa bed structure according to claim 2, characterized in that: the guide limiting block protrudes inwards from the inner side surface of the handrail component and comprises a higher elevation part and a lower inclined part positioned at the front end of the elevation part, a slope is formed on the upper end surface of the inclined part, and a limiting groove is formed at the upper end of the elevation part; when the unfolding state and the folding state are switched, the roller rolls into the limiting groove along the slope or moves reversely.

4. A folding sofa bed structure according to claim 1, characterized in that: the limiting piece is a supporting rod, two sides of the supporting rod are respectively connected and fixed at the rear end of the handrail component, and the supporting rod is positioned at the upper part of the handrail component; in a furled state, the first folding frame is lapped backwards on the supporting rod, and the second folding frame is in an inclined state.

5. A folding sofa bed structure according to claim 2, characterized in that: and two sides of the front end of the second folding frame are hinged with the rotary connecting plate.

6. A folding sofa bed structure according to claim 5, characterized in that: the movable base comprises a front baffle plate and supporting frames, the front baffle plate is vertically arranged at the front end of the movable base, the supporting frames are arranged on the left side and the right side of the movable base, and the rotating connecting plate is fixedly connected to the rear of the supporting frames.

7. A folding sofa bed structure according to claim 6, characterized in that: the supporting frame comprises an upper cross rod, a lower cross rod, a front upright rod and a rear upright rod, the upper cross rod and the lower cross rod are protruded backwards from the rear upright rod, the rotating connecting plate is connected and fixed at the rear end of the upper cross rod, and vertical downward trundles are arranged at the front end and the rear end of the lower cross rod respectively.

8. A folding sofa bed structure according to claim 1, characterized in that: the folding frame of first folding frame, second be "mouth" style of calligraphy frame, the front end of first folding frame pass through hinge cooperation with the rear end of second folding frame.

9. A folding sofa bed structure according to claim 8, wherein: when the folding device is switched between the unfolding state and the folding state, the included angle range between the plane where the second folding frame is located and the horizontal plane is 0-70 degrees.

10. A folding sofa bed structure according to claim 3, characterized in that: the first folding frame is characterized in that two sides of the first folding frame are respectively provided with a limiting clamping seat, the rear end of the raised part is provided with a transverse baffle, and the limiting clamping seats are configured to be downwards abutted against the upper end face of the transverse baffle when the first folding frame is unfolded to be in a horizontal state.

11. A folding sofa bed structure according to claim 2, characterized in that: and the first, second and third folding frames are respectively and uniformly provided with a supporting net, an S spring, an elastic band or a rubber band which play a supporting role.

12. A folding sofa bed structure according to claim 1, characterized in that: the handrail folding device is characterized in that a horizontally arranged supporting frame is further arranged between the left handrail component and the right handrail component, the supporting frame is located behind and below the handrail components, the supporting frame is fixedly connected with the handrail components through connecting plates on two sides, and the front ends of the connecting plates are hinged to two sides of the rear end of the first folding frame.