CN215874075U - Sofa bed - Google Patents

Abstract

The utility model discloses a sofa bed, which comprises a fixed frame and a movable frame, wherein the fixed frame is fixedly connected with the movable frame; a sliding mechanism is arranged between the movable frame and the fixed frame, the sliding mechanism comprises sliding seats arranged at two sides of the fixed frame and rolling wheels correspondingly arranged at two sides of the movable frame, the sliding seats comprise sliding chutes and upper baffles positioned above the sliding chutes, and the rolling wheels roll back and forth along the sliding chutes and are limited in the sliding seats by the upper baffles; a notch is arranged at the position of the upper baffle plate close to the front end, and when the roller slides to the notch, the movable frame can be selectively separated from the fixed frame; the front end of the movable frame is also provided with a heightening cushion block, the movable frame is provided with an extending position and a furling position, and the movable frame and the fixed frame are positioned at the same height under the extending position; under the folding position, the movable frame is stacked above the fixed frame, and the heightening cushion block is lapped on the fixed frame so as to lift the front end of the movable frame; the sofa bed can meet the requirements of users in different use states, and is convenient to disassemble and assemble.

Description

Sofa bed

Technical Field

The utility model relates to the field of sofas, in particular to a sofa bed.

Background

The sofa bed is furniture capable of being used as a sofa and a bed. Modern living room arrangement is highly appreciated, and multifunctional furniture is becoming more and more popular choice, and the sofa bed is one of them. In a small dwelling, a sofa bed is necessary to meet the occasional visitor's living needs. In general, the sofa bed can be placed in a living room or a study room and can serve as a seat; at night when guests come, the sofa bed is unfolded, and the bed is just a bed after bedding is laid. In a common house type such as a three-room and two-room, the sofa bed can be outside the sleeping bed for people to sleep, and the master is helped to deal with occasional visits by a plurality of guests. It is instructive to select an appropriate sofa bed. The sofa bed needs to satisfy two functions of sitting and lying, and is firm, durable and beautiful, and the material and the process of the sofa bed are guaranteed.

The drawing type structure of many support bodies is adopted to the sofa bed on the existing market mostly, mainly has following problem:

1. people have certain difference to the user demand of sofa and the user demand of bed, and under sofa user state, the user sits on the sofa, and both feet are crooked and the shank is high-back low state in the front, and admittedly and current a lot of sofas or seats all with the front end design of its seat subassembly higher than the rear end, the seat face has certain inclination, makes like this when the user uses, and the seat face can laminate user's shank, uses more comfortablely. In the using state of the bed body, the user lies down, so that the bed surface is expected to be kept in a horizontal state. However, most of the sofa beds with the drawing structure in the market can only keep the seat surface horizontal and the bed surface after being stretched into the bed body horizontal, and cannot be changed relatively to meet the use requirements of users in different states. After some sofa beds extend out, the front frame and the rear frame are staggered in height, and the bed surface can be kept in a horizontal state only by paving mattresses with different thicknesses, so that the use comfort of users is greatly influenced.

2. The sofa bed is a relatively large-scale component, so when being packaged and transported, the sofa bed is often required to be disassembled and then packaged and transported separately; the user may need to install the device by himself, and if the structure is too complex, the installation becomes a problem, and the use experience of the user is greatly influenced; the sofa bed also needs to be as compact as possible while ensuring functionality.

Disclosure of Invention

The utility model overcomes the defects in the prior art and provides the sofa bed with simple structure and light operation; the movable frame can slide back and forth relative to the fixed frame through the sliding mechanism, and under the extending position, the movable frame and the fixed frame are at the same height, so that when the sofa bed is used as a bed body, the bed surface is horizontal; the front end of the movable frame is provided with a heightening cushion block, and the front end of the heightening cushion block is lapped on the fixed frame under the furled position so as to lift the front end of the movable frame, so that when the sofa bed is used as a normal sofa, the front part of the seat surface is high and the back part is low, and the use feeling is better; so that the sofa bed can meet the requirements of users in different use states; and the roller can be separated from the sliding seat from the gap, so that the movable frame and the fixed frame are very convenient to mount and dismount, the package is easy, and the self-mounting of a user is facilitated.

The technical scheme of the utility model is realized as follows:

a sofa bed comprises a fixed frame and a movable frame which can extend or retract relative to the fixed frame; a sliding mechanism is arranged between the movable frame and the fixed frame, the sliding mechanism comprises sliding seats respectively arranged at the left side and the right side of the fixed frame and rolling wheels correspondingly arranged at the left side and the right side of the movable frame, the sliding seats comprise a sliding chute and an upper baffle plate positioned above the sliding chute, and the rolling wheels roll back and forth along the sliding chute and are limited in the sliding seats by the upper baffle plate; a notch is arranged at the position of the upper baffle plate close to the front end, and when the roller slides to the notch, the movable frame can be selectively separated from the fixed frame; the front end of the movable frame is also provided with a heightening cushion block protruding downwards, the movable frame is provided with an extending position and a folding position, the movable frame is pulled outwards under the extending position, and the movable frame and the fixed frame are positioned at the same height; under the furling position, the movable frame is stacked above the fixed frame, and the heightening cushion block is lapped on the fixed frame so as to lift the front end of the movable frame.

Preferably, the fixed frame comprises a front cross beam and a rear cross beam which are arranged at intervals in the front and the rear directions; the slide is the cuboid structure, and the front end and the front beam of slide are fixed continuous, and the rear end and the rear beam of slide are fixed continuous. The slide can with the gyro wheel cooperation, can also fix front beam and back crossbeam.

Preferably, the sliding seat comprises a bottom plate, and a first connecting plate and a second connecting plate which respectively extend upwards from the left side and the right side of the bottom plate; the sliding groove is formed among the bottom plate, the first connecting plate and the second connecting plate; the front end and the rear end of the first connecting plate are respectively fixedly connected with the front cross beam and the rear cross beam; the upper baffle extends out horizontally from the upper end of the second connecting plate towards the direction of the fixed frame, and the height of the second connecting plate is at least higher than that of the roller. So that the roller is confined between the bottom plate and the upper baffle.

Preferably, the front cross beam and the rear cross beam are both made of metal materials; the sliding seat is made of metal material. And a metal structure is adopted, so that the structural strength is ensured.

Preferably, the movable frame comprises a front support cross bar and side bars positioned at the left side and the right side of the front support cross bar, and the rollers are arranged at the outer sides of the rear ends of the side bars; the roller and the side rods are both positioned in the sliding grooves, and the upper baffle is only positioned above the roller. The slide can effectual support movable frame, and goes up the baffle and can not interfere the side lever for the side lever front end can be lifted up on the back.

Preferably, the heightening cushion blocks are arranged on the left side and the right side of the front supporting cross rod in a mirror image mode, the heightening cushion blocks correspond to the sliding seat in positions, the length of each heightening cushion block is smaller than the height of the sliding seat, and the heightening cushion blocks are overlapped in the sliding seat in a folding position.

Preferably, the fixed frame is provided with first ribs which are arranged at intervals along the left-right direction, and the movable frame is provided with second ribs which are arranged at intervals along the left-right direction; the first bone strips and the second bone strips are distributed in a left-right staggered manner; and under the extending position, the first bone strip and the second bone strip are at the same height.

Preferably, the front end of the bottom plate is further provided with a positioning opening, the movable frame is located at the extending position, and the bottom end of the roller is embedded into the positioning opening. So that the rolling of the roller is limited under the extending position, and the movable frame is prevented from resetting.

Preferably, a guide mechanism is further arranged between the fixed frame and the movable frame, and the guide mechanism comprises a guide rod arranged on one of the fixed frame or the movable frame and a guide block correspondingly arranged on the other of the fixed frame or the movable frame; the guide rod is arranged along the front-back direction, and the guide block is in sliding fit with the guide rod. The stretching or drawing process of the movable frame is more stable, a certain limiting effect can be achieved, and the movable frame is prevented from shaking.

Preferably, the guide rod is arranged at the middle position of the fixed frame, and the guide block is correspondingly arranged at the rear end of the movable frame; the guide block is in an inverted U-shaped structure, and is slidably clamped on the guide rod; and the guide rod is made of metal, and the front end of the guide rod is also provided with a support leg column which extends downwards. The guide rod is made of metal and is arranged in the middle position, so that stress can be further dispersed, and the structural strength is improved; the supporting leg can also disperse the load, so that the sofa bed is more stable in overall use.

Preferably, the rear end of the movable frame is further provided with a limiting plate extending downwards, and the limiting plate abuts against the front end of the fixed frame in the extending position. The movable frame is restricted from being separated from the fixed frame.

The design starting point, the idea and the beneficial effects of the utility model adopting the technical scheme are as follows:

firstly, compared with the prior art, the utility model provides the sofa bed, and the movable frame can extend out or retract relative to the fixed frame by arranging the sliding mechanism between the movable frame and the fixed frame; under the extended position, the fixed frame and the movable frame are at the same height, and the bed surface of the bed body formed at the moment is horizontal; under the folding position, the front end of the movable frame is provided with a heightening cushion block, the heightening cushion block is lapped on the fixed frame, so that the front end of the movable frame is raised, and when the sofa bed is used as a normal sofa, the front end of the seat surface is high, and the rear end of the seat surface is low, so that the sofa bed is comfortable to use; therefore, the sofa bed can meet the requirements of users in different use states, and is more careful in consideration.

Secondly, the roller is limited in the sliding seat, so that the movable frame is limited not to be separated from the fixed frame; the gap is arranged on the upper baffle plate, so that when the movable frame needs to be detached from the fixed frame, only the roller needs to roll to the gap, and the movable frame is very convenient and simple to mount and detach; the packaging and transportation are easy, and the self-installation by users is convenient.

Moreover, the movable frame can smoothly slide back and forth relative to the fixed frame under the action of the rollers, and a guide mechanism is also arranged between the movable frame and the fixed frame, so that the sliding process of the movable frame can be further stabilized, and the shaking is eliminated; the user can pull the movable frame more lightly and stably.

Drawings

Fig. 1 is a schematic perspective view illustrating a movable frame of an embodiment of the present invention when folded;

FIG. 2 is a schematic perspective view of the movable frame connected to the sofa bed according to the embodiment of the present invention;

FIG. 3 is a schematic perspective view of a movable frame according to an embodiment of the present invention;

FIG. 4 is a perspective view of a fixing frame according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a slider according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view illustrating a roller rolling to the notch according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of the movable frame in an extended position in an embodiment of the present invention;

FIG. 8 is a schematic side perspective view of an embodiment of the present invention illustrating the collapsed position of the drop frame;

FIG. 9 is a side cross-sectional view of an embodiment of the present invention with the drop frame in a collapsed position;

fig. 10 is a side sectional view of the present invention in an extended position of the drop frame in an embodiment.

The figures are numbered: a fixed frame 1; a movable frame 2; a slide carriage 3; a roller 4; a chute 5; an upper baffle 6; a notch 7; a heightening cushion block 8; a backrest assembly A; an armrest assembly B; a front cross member 9; a front stay 9 a; a rear cross member 10; a rear support plate 10 b; a first bone strip 11; a base plate 12; a first connecting plate 13; a second connecting plate 14; a front support bar 15; a side lever 16; a front decorative panel 17; a caster 18; a second bone strip 19; a bearing plate 20; fixing the transverse plate 21; a guide rod 22; a guide block 23; a support leg 24; a positioning port 25; a stopper plate 26; a barrier strip 27.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. 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 than one 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 embodiment of the utility model is as follows:

as shown in fig. 1 to 10, the present invention provides a sofa bed, which includes a fixed frame 1 supporting a human body to sit on and a movable frame 2 capable of being extended or retracted with respect to the fixed frame 1; wherein, a sliding mechanism is arranged between the movable frame 2 and the fixed frame 1, and the sliding mechanism comprises sliding seats 3 respectively arranged at the left side and the right side of the fixed frame 1 and rollers 4 correspondingly arranged at the left side and the right side of the movable frame; the sliding seat 3 comprises a sliding groove 5 and an upper baffle 6 positioned above the sliding groove 5, the roller 4 can roll back and forth along the sliding groove 5, and the upper baffle 6 can effectively limit the roller 4 from separating from the sliding seat 3 from the upper side; a notch 7 is arranged at the position of the upper baffle 6 close to the front end, when the roller 4 slides to the notch 7, the roller 4 can be separated from the sliding seat 3 from the upper part so that the movable frame 2 can be separated from the fixed frame 1, thereby realizing the convenient installation and disassembly of the movable frame 2 and the fixed frame 1; a heightening cushion block 8 protruding downwards is further arranged at the front end of the movable frame 2, the movable frame 2 is provided with an extending position and a retracting position, the movable frame 2 is pulled outwards under the extending position, and the movable frame 2 and the fixed frame 1 are at the same height, so that the bed surface of the formed bed body is horizontal; under the furling position, the movable frame 2 is stacked above the fixed frame 1, and the heightening cushion block 8 is lapped on the fixed frame 1 so as to lift the front end of the movable frame 2; therefore, the seat surface of the sofa is high in the front and low in the back, and the user feels more comfortable. The sofa bed can meet the requirements of users in different use states, and the movable frame 2 can be conveniently arranged on the fixed frame 1 or taken down from the fixed frame 1; the split packaging is convenient, and the user can conveniently mount the package.

As shown in fig. 1-5, the sofa bed further comprises a backrest assembly a located at the rear end of the fixed frame 1 and armrest assemblies B connected to the left and right sides of the fixed frame 1, respectively; the fixed frame 1 comprises a front cross beam 9 and a rear cross beam 10 which are arranged at intervals in the front and the rear directions, and the front cross beam 9 and the rear cross beam 10 are both made of metal materials and have higher strength; the rear cross beam 10 is fixedly connected with the backrest component A. The sliding seat 3 is of a cuboid structure and made of metal, the front end of the sliding seat 3 is fixedly connected with the front cross beam 9, and the rear end of the sliding seat 9 is fixedly connected with the rear cross beam 10; the method specifically comprises the following steps: as shown in fig. 5, the sliding base 3 includes a bottom plate 12, and a first connecting plate 13 and a second connecting plate 14 extending upward from the left and right sides of the bottom plate 12; the first connecting plate 13 is close to the fixed frame 1, and the front end and the rear end of the first connecting plate 13 are respectively fixedly connected with the front cross beam 9 and the rear cross beam 10; the second connecting plate 14 is configured to be fixedly connected with the handrail component B, the height of the second connecting plate 14 is at least higher than that of the roller 4, and the upper baffle 6 horizontally extends from the upper end of the second connecting plate 14 to the end of the fixed frame 1; the sliding groove 5 is formed among the bottom plate 12, the first connecting plate 13 and the second connecting plate 14, and the roller 4 rolls back and forth along the bottom plate 12. The fixed frame 1 is also provided with first bone strips 11 which are arranged at intervals along the left-right direction, the front cross beam 9 is provided with a front supporting plate 9a which extends backwards, and the rear cross beam 10 is provided with a rear supporting plate 10b which extends forwards; the front end and the rear end of the first bone strip 11 are respectively fixed on the front support plate 9a and the rear support plate 9b in an overlapping way.

As shown in fig. 2 and 3, the movable frame 2 includes a front support rod 15 at the front end and side rods 16 at the left and right sides of the front support rod 15, and the rollers 4 are connected to the outer sides of the rear ends of the side rods 16; the heightening cushion blocks 8 are respectively connected to two sides of the bottom of the front support rod 15; the front of the front support bar 15 is connected to a front trim panel 17, as shown in fig. 1, to make the sofa attractive in appearance in the stowed position. The two sides of the lower end of the front supporting rod 15 are also connected with trundles 18, so that the movable frame 2 is stable and smooth in the moving process, and the function of supporting the movable frame 2 can be achieved; second bone strips 19 which are arranged at intervals are also arranged on the movable frame 2 along the left-right direction, a bearing plate 20 which extends backwards is arranged on the front supporting rod 15, and the front ends of the second bone strips 19 are lapped and fixed on the bearing plate 20; a fixed transverse plate 21 is fixedly connected to the upper surface of the rear end of the second rib 19, and the left and right ends of the fixed transverse plate 21 are fixedly connected to the side bars 16, respectively.

As shown in fig. 1, 2, 6 and 7, when subsequently installed, the movable frame 2 is stacked on the fixed frame 1, specifically: lifting the movable frame 2 to the upper part of the fixed frame 1, then enabling the rollers 4 on two sides of the movable frame 2 to enter the sliding groove 5 from the notches 7 on the upper baffle 6, wherein the width of the bottom plate 12 is at least larger than the widths of the rollers 4 and the side bars 16, and the length of the upper baffle 6 does not exceed the width of the rollers; as shown in fig. 6, so that the roller 4 and the side bar 16 will enter the chute 5 together, and the upper baffle 6 does not interfere with the entry of the side bar 16; after the roller 4 enters the sliding groove 5, the movable frame 2 is stacked with the fixed frame 1, the first bone strips 11 and the second bone strips 19 are distributed in a left-right staggered manner, and the first bone strips 11 and the second bone strips 19 are at the same height; the front caster 18 of the movable frame 2 is also in contact with the ground so that the movable frame 2 can be freely extended or retracted with respect to the fixed frame 1.

As shown in fig. 3 and 4, in order to avoid the shaking of the movable frame 2, a guide mechanism is further arranged between the movable frame 2 and the fixed frame 1, the guide mechanism comprises a guide rod 22 arranged in the middle of the fixed frame 1 and a guide block 23 correspondingly arranged at the rear end of the movable frame 2, wherein the guide rod 22 is made of metal, and the front end and the rear end of the guide rod 22 are respectively connected and fixed on the front cross beam 9 and the rear cross beam 10; the guide block 23 is correspondingly arranged in the middle of the rear end of the movable frame 2, the guide block 23 is in an inverted U shape, and the guide block 23 is slidably clamped on the guide rod 22; therefore, in the moving process of the movable frame 2, the guide block 23 slides back and forth along the guide rod 22, so that the moving of the movable frame 2 is more stable, and the phenomena of deviation and shaking are avoided. A support leg 24 extending downwards is further arranged at the front end of the guide rod 23, and the guide rod 23 is made of metal and is arranged in the middle position, so that stress can be further dispersed, and the structural strength is improved; the support legs 24 also distribute the load and provide a more stable overall support for the sofa sleeper.

As shown in fig. 3-10, the movable frame 2 is very light and labor-saving during the extension or retraction process under the combined action of the roller 4 and the guide mechanism; when the sofa bed is used as a bed, as shown in fig. 7, the movable frame 2 is in the extended position, the movable frame 2 is completely pulled out, and as shown in fig. 5 and 10, a positioning opening 25 is provided at the front end of the bottom plate 12, and in the extended position, the lower end of the roller 4 is embedded in the positioning opening 25, so that the rolling of the roller 4 is limited, and the movable frame 2 can stay in the position. As shown in fig. 3, two limiting plates 26 protruding downward are provided at the rear end of the movable frame 2 in a mirror image manner, and when the movable frame 2 is pulled out to the protruding position, the limiting plates 26 will abut against the front cross member 10 of the fixed frame 1. When the sofa bed is used as a normal sofa, the movable frame 2 is pushed inwards, the position of the heightening cushion block 8 corresponds to the position of the slide carriage 3 on the corresponding side, and then as shown in fig. 8 and 9, when the movable frame 2 is about to be completely pushed in, the front end of the movable frame 2 is lifted upwards, so that the heightening cushion block 8 is lapped on the bottom plate 12 of the slide carriage 3; as shown in fig. 9, at this time, the movable frame 2 is stacked above the fixed frame 1, and the front end of the movable frame 2 is tilted, and at this time, the movable frame 2 is in the retracted position, and as shown in fig. 5, a barrier strip 27 is further provided at the front end of the slide base 3, and the barrier strip 27 can effectively limit the heightening pad block 8 from falling down, so that the movable frame 2 can be maintained in the retracted position; therefore, when the sofa bed is used as a sofa, the front end is higher and the rear end is lower, so that the sofa bed is more comfortable to use. The requirements of a user in a sofa use state or a bed body use state can be fully met, in addition, if the movable frame 2 needs to be taken down from the fixed frame 1, the movable frame 2 can be taken out upwards from the fixed frame 1 only by rolling the rollers 4 on the movable frame 2 to the notches 7 as shown in fig. 6; the operation is very convenient and fast.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims (11)

1. A sofa bed is characterized in that: comprises a fixed frame and a movable frame which can extend or retract relative to the fixed frame; a sliding mechanism is arranged between the movable frame and the fixed frame, the sliding mechanism comprises sliding seats respectively arranged at the left side and the right side of the fixed frame and rolling wheels correspondingly arranged at the left side and the right side of the movable frame, the sliding seats comprise a sliding chute and an upper baffle plate positioned above the sliding chute, and the rolling wheels roll back and forth along the sliding chute and are limited in the sliding seats by the upper baffle plate; a notch is arranged at the position of the upper baffle plate close to the front end, and when the roller slides to the notch, the movable frame can be selectively separated from the fixed frame; the front end of the movable frame is also provided with a heightening cushion block protruding downwards, the movable frame is provided with an extending position and a folding position, the movable frame is pulled outwards under the extending position, and the movable frame and the fixed frame are positioned at the same height; under the furling position, the movable frame is stacked above the fixed frame, and the heightening cushion block is lapped on the fixed frame so as to lift the front end of the movable frame.

2. The sofa bed according to claim 1, wherein: the fixed frame comprises a front cross beam and a rear cross beam which are arranged at intervals in the front and the rear directions; the slide is the cuboid structure, and the front end and the front beam of slide are fixed continuous, and the rear end and the rear beam of slide are fixed continuous.

3. The sofa bed according to claim 2, wherein: the sliding seat comprises a bottom plate, a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate respectively extend upwards from the left side and the right side of the bottom plate; the sliding groove is formed among the bottom plate, the first connecting plate and the second connecting plate; the front end and the rear end of the first connecting plate are respectively fixedly connected with the front cross beam and the rear cross beam; the upper baffle extends out horizontally from the upper end of the second connecting plate towards the direction of the fixed frame, and the height of the second connecting plate is at least higher than that of the roller.

4. The sofa bed according to claim 3, wherein: the front cross beam and the rear cross beam are made of metal materials; the sliding seat is made of metal material.

5. The sofa bed according to claim 1, wherein: the movable frame comprises a front supporting cross rod and side rods positioned on the left side and the right side of the front supporting cross rod, and the rollers are arranged on the outer sides of the rear ends of the side rods; the roller and the side rods are both positioned in the sliding grooves, and the upper baffle is only positioned above the roller.

6. The sofa bed according to claim 5, wherein: the heightening cushion block mirror images are arranged on the left side and the right side of the front supporting cross rod, the position of the heightening cushion block corresponds to the position of the sliding seat, the length of the heightening cushion block is smaller than the height of the sliding seat, and the heightening cushion block is overlapped in the sliding seat under the furling position.

7. The sofa bed according to claim 1, wherein: the fixed frame is provided with first bone strips which are arranged at intervals along the left-right direction, and the movable frame is provided with second bone strips which are arranged at intervals along the left-right direction; the first bone strips and the second bone strips are distributed in a left-right staggered manner; and under the extending position, the first bone strip and the second bone strip are at the same height.

8. The sofa bed according to claim 3, wherein: the front end of the bottom plate is also provided with a positioning opening, the movable frame is positioned under the extending position, and the bottom end of the roller is embedded into the positioning opening.

9. The sofa bed according to claim 1, wherein: a guide mechanism is also arranged between the fixed frame and the movable frame, and comprises a guide rod arranged on one of the fixed frame or the movable frame and a guide block correspondingly arranged on the other of the fixed frame or the movable frame; the guide rod is arranged along the front-back direction, and the guide block is in sliding fit with the guide rod.

10. The sofa bed according to claim 9, wherein: the guide rod is arranged in the middle of the fixed frame, and the guide block is correspondingly arranged at the rear end of the movable frame; the guide block is in an inverted U-shaped structure, and is slidably clamped on the guide rod; and the guide rod is made of metal, and the front end of the guide rod is also provided with a support leg column which extends downwards.

11. The sofa bed according to claim 1, wherein: and the rear end of the movable frame is also provided with a limiting plate extending downwards, and the limiting plate is abutted against the front end of the fixed frame under the extending position.

Images