Foldable sofa

Abstract

The utility model discloses a foldable sofa, which belongs to the field of furniture and comprises a sofa base, and a backrest multi-direction adjusting mechanism is mounted on the sofa base and can be used for sitting down and leaning on the sofa from different directions after being adjusted; the backrest multi-direction adjusting mechanism comprises an adjustable backrest, a driving assembly, a transmission assembly and a fixing assembly; a sliding expanding seat for expanding the seat is mounted below the adjustable backrest; and a back cushion for leaning on or raising the seat is detachably mounted at the upper end of the rear side of the sofa base. Through the mode, the leaning direction can be conveniently adjusted under the condition that the sofa is not moved, different requirements of users can be met, more people can sit on the sofa through the arrangement of the expansion seats, and the users can lie down to have a rest.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field, concretely relates to a foldable sofa. BACKGROUND

[0002] The foldable sofa as furniture, it has the function of sitting and sleeping, meets the demand of rest and sleep, enriches furniture category, like the foldable sofa bed designed for small household, can save space, provides multiple use scenes.

[0003] Chinese patent CN215423740U discloses a foldable sofa, including main body assembly, sliding assembly and adjusting assembly, the main body assembly includes first shell, second shell, backboard and top plate, one side of the first shell is welded with the second shell, the upper surface of the second shell is connected with the top plate, the inside of the first shell is connected with the backboard, the inside of the main body assembly is provided with the sliding assembly, the sliding assembly includes plate body and first limiting slot, the lower surface of the top plate is symmetrically welded with two plate bodies, the spring inside the second shell is deformed to drive the support plate to slide upward, the push plate drives the limiting block to slide into the inside of the second limiting slot, thereby fixing the support plate, and the inside of the second shell has a plurality of support plates, by adjusting the length of the top plate, the plurality of support plates are moved one by one, thereby freely adjusting the length of the sofa according to the requirement, greatly improving the use effect of the sofa, but the device still has the following problems:

[0004] The user has the demand of leaning from different directions when using, the device can only be realized by moving the sofa body, and the sofa body is relatively heavy and inconvenient to move.

[0005] Based on this, the utility model discloses a foldable sofa to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a foldable sofa.

[0007] To achieve the above object, the utility model realizes through the following technical scheme:

[0008] A foldable sofa, including sofa base, still including backrest multidirectional adjusting mechanism, sliding expansion seat and back cushion,

[0009] The backrest multidirectional adjusting mechanism can be installed on the sofa base and adjusted to sit and lean on the sofa from different directions;

[0010] The backrest multi-direction adjusting mechanism comprises an adjustable backrest, a driving assembly, a transmission assembly and a fixing assembly; the adjustable backrest is located between two groups of driving assemblies, and each of the left and right ends of the adjustable backrest is provided with a group of transmission assemblies, the two groups of transmission assemblies are connected with the driving assemblies on the same side, the two groups of fixing assemblies are symmetrically arranged at the left and right ends of the front side of the driving assembly on the front end, and the two groups of driving assemblies are symmetrically arranged at the front and rear ends of the sofa base, and the driving assembly and the fixing assembly are connected with the sofa base.

[0011] A sliding extended seat for expanding the seat is mounted below the adjustable backrest.

[0012] A back cushion for leaning or raising the seat is detachably mounted on the upper end of the rear side of the sofa base.

[0013] Further, the back cushion and the sofa base are bonded by magic tape.

[0014] Further, the driving assembly comprises a sliding block, a guide rod and a protrusion; a plurality of guide rods are arranged horizontally up and down, the guide rods are slidingly connected with the sofa base, and the left and right ends of the guide rods are fixedly connected with two sliding blocks; the sliding block is limitingly slidingly connected with the sofa base through the guide rod; two protrusions are fixedly connected with the sliding blocks on the sides away from each other of the two groups of driving assemblies; the sliding blocks at the left and right ends are connected with the transmission assembly; and the front side of the sliding block is connected with the fixing assembly.

[0015] Further, the transmission assembly comprises a rack, a gear and a rotating shaft; the rotating shaft is fixedly connected with the end of the adjustable backrest, both ends of the rotating shaft are fixedly connected with a gear, and the upper sides of the sliding blocks on the ends close to each other of the two groups of driving assemblies are fixedly connected with a rack; the gear is meshingly connected with the rack.

[0016] Further, the fixing assembly comprises a fixed block, a fixed groove for limiting the sliding of the fixed block is arranged on the sliding blocks at both ends of the driving assembly on the front end, the fixed block penetrates through the sofa base and the sliding block on the front side, and a fixed groove is also arranged on the sofa base below the gear on the front end of the rotating shaft; the sliding block is limitingly slidingly connected with the fixed groove.

[0017] Further, the fixed groove arranged on the sofa base below the gear has a depth of not less than five centimeters.

[0018] Further, the sliding extended seat comprises an extended seat and a roller, the extended seat is located below the adjustable backrest, and four rollers are connected with the lower end of the extended seat through a connecting piece.

[0019] Further, the expanded seat comprises a sliding plate and a supporting plate; the supporting plate is provided with a limiting sliding groove for limiting sliding of the sliding plate, and the sliding plate is in limiting sliding connection with the limiting sliding groove; the lower right end of the sliding plate is rotatably connected with two rollers through a connecting piece, and the two rollers at the lower right end of the sliding plate are symmetrically arranged at the front and rear ends of the sliding plate; the lower left end of the supporting plate is rotatably connected with two rollers through a connecting piece, and the two rollers at the lower left end of the supporting plate are symmetrically arranged at the front and rear ends of the supporting plate.

[0020] Compared with the prior art, the sofa of the utility model has the beneficial effects that: 1. The sofa can conveniently adjust the lying direction without moving the sofa, and meets different needs of users.

[0021] 2. The sofa can seat more people and allow users to lie down and rest through the setting of the expanded seat. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0023] Figure 1 It is a perspective view of a foldable sofa of the utility model Figure 1 ;

[0024] Figure 2 It is a front view of a foldable sofa of the utility model

[0025] Figure 3 It is a partial perspective view of a foldable sofa of the utility model after removing part of the sofa base

[0026] Figure 4 It is a partial perspective view of a foldable sofa of the utility model Figure 2 ;

[0027] Figure 5 It is a perspective view of a sliding expanded seat of the utility model.

[0028] The numbers in the drawings respectively represent:

[0029] 1. Sofa base; 2. Multi-directional backrest adjustment mechanism; 21. Adjustable backrest; 22. Drive assembly; 221. Slider; 222. Guide rod; 223. Protrusion; 23. Transmission assembly; 231. Rack; 232. Gear; 233. Rotating shaft; 24. Fixing assembly; 241. Fixing block; 242. Fixing groove; 3. Sliding extended seat; 31. Extended seat; 311. Sliding plate; 312. Slide groove; 313. Support plate; 32. Roller; 4. Cushion. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A foldable sofa, including a sofa base 1;

[0033] The sofa base 1 is equipped with a multi-directional adjustable backrest mechanism 2 that allows the user to sit down and lean against the sofa from different directions.

[0034] The multi-directional backrest adjustment mechanism 2 includes an adjustable backrest 21, a drive assembly 22, a transmission assembly 23, and a fixing assembly 24. The adjustable backrest 21 is located between two sets of drive assemblies 22. A set of transmission assemblies 23 is provided at both the left and right ends of the adjustable backrest 21. Both sets of transmission assemblies 23 are connected to the drive assembly 22 on the same side. The two sets of fixing assemblies 24 are symmetrically arranged at the left and right ends in front of the drive assembly 22. The two sets of drive assemblies 22 are symmetrically arranged at the front and rear ends of the sofa base 1. Both the drive assembly 22 and the fixing assembly 24 are connected to the sofa base 1.

[0035] The sofa base 1 is equipped with a sliding extended seat 3 for extending the seating area; the sliding extended seat 3 is located below the adjustable backrest 21, which can save more space.

[0036] The upper rear side of the sofa base 1 is detachably fitted with a cushion 4 for leaning against or raising the seat.

[0037] In the utility model, the user can pull the sliding expansion seat 3 to expand the seat area, when there is a leaning demand from different directions, the driving assembly 22 on the sliding side can be adjusted by the transmission of the transmission assembly 23 to lift the left end or the right end of the backrest 21, the user holds the lifted end of the adjustable backrest 21 and rotates the adjustable backrest 21 with the non-lifted end as the shaft, after rotating to the vertical state, the position of the adjustable backrest 21 is fixed by the fixed assembly 24, and the sofa is conveniently leaned from different directions.

[0038] The driving assembly 22 comprises a sliding block 221, a guide rod 222 and a protruding block 223; a plurality of guide rods 222 are arranged horizontally upwards and downwards, the guide rod 222 is slidably connected with the sofa base 1, and the left and right ends of the guide rod 222 are fixedly connected with the two sliding blocks 221; the sliding block 221 is limitingly and slidably connected with the sofa base 1 through the guide rod 222; the two sliding blocks 221 on the sides away from each other of the two driving assemblies 22 are fixedly connected with two protruding blocks 223 respectively; the left and right sliding blocks 221 are connected with the transmission assembly 23; the front side of the sliding block 221 is connected with the fixed assembly 24;

[0039] The transmission assembly 23 comprises a rack 231, a gear 232 and a rotating shaft 233; the rotating shaft 233 is fixedly connected with the end of the adjustable backrest 21, both ends of the rotating shaft 233 are fixedly connected with a gear 232, and the inner side of the sliding block 221 is fixedly connected with a rack 231; the gear 232 is meshingly connected with the rack 231.

[0040] The fixed assembly 24 comprises a fixed block 241, a fixed groove 242 for limiting the sliding of the fixed block 241 is formed in the two sliding blocks 221 of the front end of the driving assembly 22, the fixed block 241 penetrates the sofa base 1 and the sliding block 221 on the front side, and the sofa base 1 on the lower side of the gear 232 at the front end of the rotating shaft 233 is also provided with a fixed groove 242; the sliding block 221 is limitingly and slidably connected with the fixed groove 242.

[0041] In the utility model, the user slides the protruding block 223 to the left or to the right, the protruding block 223 drives the sliding block 221 to slide, the gear 232 at the end of the sliding direction is meshingly connected with the rack 231, the gear 232 is rotated by continuously pushing the sliding block 221, the gear 232 rotation drives the end of the adjustable backrest 21 on the opposite direction of the sliding direction to be lifted, the user holds the lifted end of the adjustable backrest 21 and rotates the adjustable backrest 21 with the non-lifted end as the shaft, when the adjustable backrest 21 is perpendicular to the ground, the fixed block 241 under the adjustable backrest 21 is pushed to slide into the fixed groove 242 formed in the sofa base 1 on the lower side of the gear 232 at the rear side, and the position of the adjustable backrest 21 is fixed; the leaning direction is replaced.

[0042] The sliding expansion seat 3 comprises an expansion seat 31 and four rollers 32, the expansion seat 31 is located below the adjustable backrest 21, the expansion seat 31 is slidingly connected with the sofa base 1, and the four rollers 32 are rotationally connected with four corners of the lower end of the expansion seat 31 through connecting members;

[0043] The expansion seat 31 comprises a sliding plate 311 and a supporting plate 313; the supporting plate 313 is provided with a limiting sliding groove 312 for limiting the sliding of the sliding plate 311, and the sliding plate 311 is in limiting sliding connection with the limiting sliding groove 312; the lower right end of the sliding plate 311 is rotationally connected with two rollers 32 through connecting members, and the two rollers 32 at the lower right end of the sliding plate 311 are symmetrically arranged at the front and rear ends of the sliding plate 311; the lower left end of the supporting plate 313 is rotationally connected with two rollers 32 through connecting members, and the two rollers 32 at the lower left end of the supporting plate 313 are symmetrically arranged at the front and rear ends of the supporting plate 313.

[0044] In the utility model, the user slides the sliding plate 311 out from below the adjustable backrest 21 to the right through the rollers 32, or slides the supporting plate 313 out from below the adjustable backrest 21 to the left through the rollers 32, then removes the back cushion 4 from the sofa base 1 and places the back cushion 4 on the upper end of the sliding plate 311 and the supporting plate 313, at this time, the user can lie on the expansion seat 31 and the upper side of the adjustable backrest 21 to rest, and the expansion seat size can be expanded by sliding the sliding plate 311 or the supporting plate 313 after the adjustable backrest 21 is adjusted.

[0045] The fixed groove 242 formed in the sofa base 1 below the gear 232 has a depth of not less than five centimeters, so that the position of the adjustable backrest 21 can be better locked.

[0046] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit the same; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A foldable sofa comprising a sofa base (1), characterized in that: It also includes back multi-direction adjusting mechanism (2), sliding expansion seat (3) and back cushion (4); The sofa base (1) is provided with back multi-direction adjusting mechanism (2) which can adjust the backrest to sit on the sofa from different directions; The back multi-direction adjusting mechanism (2) comprises adjustable backrest (21), driving assembly (22), transmission assembly (23) and fixing assembly (24); the adjustable backrest (21) is located between the two groups of driving assemblies (22), and each of the left and right ends of the adjustable backrest (21) is provided with a group of transmission assemblies (23), the two groups of transmission assemblies (23) are connected with the driving assemblies (22) on the same side, and the two groups of fixing assemblies (24) are symmetrically arranged at the left and right ends of the front side of the front group of driving assemblies (22), and the two groups of driving assemblies (22) are symmetrically arranged at the front and rear ends of the sofa base (1), and the driving assemblies (22) and the fixing assemblies (24) are connected with the sofa base (1); The adjustable backrest (21) is provided below with a sliding expansion seat (3) for expanding the seat; The rear upper end of the sofa base (1) is detachably provided with a back cushion (4) for leaning or cushioning the seat.

2. The foldable sofa according to claim 1, wherein The back cushion (4) and the sofa base (1) are bonded by magic tape.

3. The foldable sofa of claim 1, wherein, The driving assembly (22) comprises a sliding block (221), a guide rod (222) and a protrusion (223); a plurality of guide rods (222) are arranged horizontally above and below, the guide rod (222) is slidably connected with the sofa base (1), and the left and right ends of the guide rod (222) are fixedly connected with two sliding blocks (221); the sliding block (221) is limitingly and slidably connected with the sofa base (1) through the guide rod (222); two protrusions (223) are fixedly connected with the sliding blocks (221) on the sides away from each other of the two groups of driving assemblies (22); the sliding blocks (221) at the left and right ends are connected with the transmission assemblies (23); and the front side of the sliding block (221) is connected with the fixing assembly (24).

4. The foldable sofa of claim 3, wherein, The transmission assembly (23) comprises a rack (231), a gear (232) and a rotating shaft (233); the rotating shaft (233) is fixedly connected with the end of the adjustable backrest (21), both ends of the rotating shaft (233) are fixedly connected with a gear (232), and the upper sides of the sliding blocks (221) at one end of the two groups of driving assemblies (22) away from each other are fixedly connected with a rack (231); the gear (232) is in meshing connection with the rack (231).

5. The foldable sofa according to claim 4, wherein The fixing assembly (24) comprises a fixed block (241), and a fixed groove (242) for limiting the sliding of the fixed block (241) is formed in each of the two sliding blocks (221) at the ends of the front group of driving assemblies (22); the fixed block (241) penetrates the sofa base (1) and the sliding block (221) on the front side, and a fixed groove (242) is also formed in the sofa base (1) on the lower side of the gear (232) at the front end of the rotating shaft (233); and the sliding block (221) is in limitingly and sliding connection with the fixed groove (242).

6. The foldable sofa of claim 5, wherein, The fixed groove (242) formed in the sofa base (1) on the lower side of the gear (232) has a depth of not less than five centimeters.

7. The foldable sofa of claim 1, wherein, The sliding expansion seat (3) comprises an expansion seat (31) and rollers (32), the expansion seat (31) is located at the lower side of the adjustable backrest (21), and the four rollers (32) are connected with the lower end of the expansion seat (31) through connecting pieces.

8. The foldable sofa of claim 7, wherein, The expansion seat (31) comprises a sliding plate (311) and a supporting plate (313); the supporting plate (313) is provided with a limiting sliding groove (312) for limiting the sliding of the sliding plate (311); the sliding plate (311) is in limiting sliding connection with the limiting sliding groove (312); the right lower end of the sliding plate (311) is rotatably connected with two rollers (32) through connecting pieces; the two rollers (32) at the right lower end of the sliding plate (311) are symmetrically arranged at the front and rear ends of the sliding plate (311); the left lower end of the supporting plate (313) is rotatably connected with two rollers (32) through connecting pieces; and the two rollers (32) at the left lower end of the supporting plate (313) are symmetrically arranged at the front and rear ends of the supporting plate (313).

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