CN210748269U

CN210748269U - Sofa bed convenient to remove

Info

Publication number: CN210748269U
Application number: CN201921081148.7U
Authority: CN
Inventors: 孟运
Original assignee: Hefei Brothers Furniture Co Ltd
Current assignee: Hefei Brothers Furniture Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-06-16
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to a sofa bed convenient to move, which comprises a backrest, a seat plate which is vertical to the backrest and is fixed with the backrest, a bed plate which is hinged with one side of the seat plate away from the backrest, universal wheels which are arranged around the bottom surface of the seat plate and lifting components which are arranged around the bottom surface of the seat plate and are used for jacking up the sofa bed; the lifting assembly comprises a mounting frame, a sliding block connected with the mounting frame in a sliding mode, a rotating shaft connected with the mounting frame in a rotating mode and a cam fixedly sleeved on the rotating shaft, the mounting frame is of an inverted U shape, the mounting frame comprises a bottom plate and vertical plates fixed on two sides of the bottom plate, and the rotating shaft penetrates through the vertical plates and is connected with the vertical plates in a rotating mode; the cam with the up end butt of slider, the slider both ends are provided with the spring, spring one end with the bottom plate is fixed, the other end with the slider up end is fixed, its rotation is restricted through the locking Assembly in the pivot, the slider bottom surface is provided with supporting component, the utility model discloses a sofa bed, the moving means is simple, laborsaving.

Description

Sofa bed convenient to remove

Technical Field

The utility model belongs to the technical field of the technique of sofa bed and specifically relates to a sofa bed convenient to remove is related to.

Background

The sofa bed is dual-purpose furniture which can be used as a sofa and a bed, the arrangement of a modern living room is advocated succinctly, multifunctional furniture becomes a popular choice more and more, the sofa bed is one of the furniture, and in a small-sized living room, one sofa bed is necessary in order to meet the occasional living needs of visitors.

Chinese patent No. CN200938968Y discloses a sofa bed with movable armrests, which comprises a backrest, a seat frame, armrests and a turntable, wherein the armrests are composed of a rectangular rotating frame and a rotating backup plate, the bottom end of the rotating backup plate is provided with a square support and is installed on the short side of the rectangular rotating frame through a rotating shaft; the rotary table is composed of an upper end cover and a lower end cover which can rotate relatively, the lower end cover is fixed on the seat frame, the upper end cover is fixed with the outer corner of the rectangular rotary frame through a screw, the angle of the backrest can be adjusted, and the sofa bed is simple and reasonable in structure and strong in functionality.

The above prior art solutions have the following drawbacks: when the sofa bed needs to be moved, two methods are generally adopted, the first method is to push the sofa bed directly on the floor, and scratches can be formed on the surface of the floor in the pushing process, so that the attractiveness of the floor is affected; the second is that at least two persons are required to lift the sofa bed and move the sofa bed to another position, the operation is relatively laborious, and the two methods are not beneficial to the movement of the sofa bed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sofa bed convenient to remove, according to the in-service use demand, conveniently remove sofa bed to required position.

The above technical purpose of the present invention can be achieved by the following technical solutions: a sofa bed convenient to move comprises a backrest, a seat plate, a bed plate, universal wheels and lifting components, wherein the seat plate is perpendicular to the backrest and is fixed with the backrest, the bed plate is hinged with one side, away from the backrest, of the seat plate, the universal wheels are installed on the periphery of the bottom surface of the seat plate, and the lifting components are arranged on the periphery of the bottom surface of the seat plate and used for jacking up the sofa bed; the lifting assembly comprises a mounting frame, a sliding block connected with the mounting frame in a sliding mode, a rotating shaft connected with the mounting frame in a rotating mode and a cam fixedly sleeved on the rotating shaft, the mounting frame is of an inverted U shape, the mounting frame comprises a bottom plate and vertical plates fixed on two sides of the bottom plate, and the rotating shaft penetrates through the vertical plates and is connected with the vertical plates in a rotating mode; the cam with the up end butt of slider, the slider both ends are provided with the spring, spring one end with the bottom plate is fixed, the other end with the slider up end is fixed, its rotation is restricted through locking Assembly in the pivot, the slider bottom surface is provided with supporting component.

By adopting the technical scheme, when the sofa bed is used as a sofa, the bed board is superposed with the seat board, and the universal wheels are arranged above the ground; when the sofa bed is used as a bed, the universal wheels are contacted with the ground, and the bed board is opened after the sofa bed is moved to a proper position by moving the universal wheels. When the sofa bed needs to be moved, the rotating shaft is rotated, the rotating shaft drives the cam to rotate, when the cam rotates to different positions, the distance between the sliding block and the ground is different, when the cam is in a horizontal state, and the distance between the rotating center of the cam and the lower edge of the cam is the minimum, the sliding block slides upwards under the action of the elastic force of the spring, the supporting component is separated from the ground, the universal wheel lands on the ground at the moment, the universal wheel is pushed to move the sofa bed, and the operation process is labor-saving; when the distance between the cam rotating point and the edge below the cam is the largest, the sliding block slides downwards, the sliding block drives the supporting component to be in contact with the ground, the sofa bed is supported, the universal wheels are separated from the ground, the sofa bed is convenient to move, after the sofa bed is moved, the universal wheels are not stressed, the sofa bed can be stably placed on the ground, and the service life of the universal wheels can be prolonged.

The utility model discloses further set up to: the locking assembly comprises a ratchet wheel fixedly sleeved on the rotating shaft and a pawl which is rotatably connected to the vertical plate and matched with the ratchet wheel.

Through adopting above-mentioned technical scheme, ratchet and pawl cooperation for the pivot unidirectional rotation in-process realizes the auto-lock, rotates the pawl and makes the pawl break away from the ratchet, but pivot antiport.

The utility model discloses further set up to: and one end of the rotating shaft is fixedly provided with a handle for driving the rotating shaft to rotate.

Through adopting above-mentioned technical scheme, set up the handle, make things convenient for the twist grip drive pivot to rotate.

The utility model discloses further set up to: waist-shaped holes are symmetrically formed in the vertical plate, and the forming direction of the waist-shaped holes is perpendicular to the bottom plate; the lateral wall of the sliding block is connected with a bolt in a threaded manner, one end of the bolt, which is far away from the sliding block, is smooth and is in sliding connection with the waist-shaped hole, and the diameter of the nut end of the bolt is larger than the width of the waist-shaped hole.

Through adopting above-mentioned technical scheme, the slider can slide along the length direction in waist shape hole, and the slider can not break away from the mounting bracket among the slip process. The bolt is in threaded connection with the sliding block, so that the disassembly and transportation are convenient, and after the bolt is transported to a destination, the installation mode is simple and the efficiency is high.

The utility model discloses further set up to: the supporting component comprises a sleeve fixed on the bottom surface of the sliding block, a stud in threaded connection with the sleeve and a supporting plate fixed on the bottom surface of the stud.

Through adopting above-mentioned technical scheme, double-screw bolt and sleeve threaded connection rotate the double-screw bolt, can further adjust the height between backup pad and the seat bottom surface, and the area of contact between backup pad and the ground is big, can improve supporting component's supporting effect.

The utility model discloses further set up to: and a rubber pad is fixed on the bottom surface of the supporting plate.

Through adopting above-mentioned technical scheme, the fixed rubber pad in backup pad bottom surface can increase the frictional force between backup pad and the ground, avoids the backup pad to slide.

The utility model discloses further set up to: the bed board is characterized in that supporting rods are rotatably connected to the side walls of the two sides of the width direction of the bed board and the side wall far away from the length direction of the hinged end, and anti-slip pads are fixed at the end parts of the supporting rods, which are in contact with the ground.

Through adopting above-mentioned technical scheme, the back is opened to the bed board, and the bracing piece has the supporting role to the bed board, and the slipmat that sets up on the bracing piece increases the frictional force between bracing piece and the ground, avoids sofa bed atress back to remove.

The utility model discloses further set up to: handrails are fixed at both ends of the seat plate.

By adopting the technical scheme, the armrests are arranged at the two ends of the seat plate, so that a person sitting on the sofa can select various sitting postures, and the armrests can support upper limbs; on the other hand sets up the handrail and can hide the bracing piece of rotating the connection on the bed board, avoids the bracing piece to expose, brings the potential safety hazard.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the sofa bed needs to be moved, the rotating shaft is rotated, the rotating shaft drives the cam to rotate, when the cam rotates to different positions, the distance between the sliding block and the ground is different, when the cam is in a horizontal state, and the distance between the rotating center of the cam and the lower edge of the cam is the minimum, the sliding block slides upwards under the action of the elastic force of the spring, the supporting component is separated from the ground, the universal wheel lands on the ground at the moment, the universal wheel is pushed to move the sofa bed, and the operation process is labor-saving; when the distance between the rotating point of the cam and the lower edge of the cam is the largest, the sliding block slides downwards, the sliding block drives the supporting component to be in contact with the ground, the sofa bed is supported, and the universal wheels are separated from the ground at the moment;

2. the sliding block slides along the length direction of the waist-shaped hole, the sliding block cannot be separated from the mounting frame in the sliding process, the bolt is in threaded connection with the sliding block, the disassembly and the transportation are convenient, and after the sliding block is transported to a destination, the mounting mode is simple and the efficiency is high;

3. the rubber pad is fixed on the bottom surface of the supporting plate, so that the friction force between the supporting plate and the ground can be increased, and the friction force between the supporting rod and the ground is increased by the non-slip pad arranged on the supporting rod, so that the sofa bed after being moved to the correct position is prevented from sliding.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the lifting assembly of the present invention;

fig. 3 is a schematic view of the local structure of the bed board of the present invention.

Reference numerals: 1. a backrest; 2. a seat plate; 21. a handrail; 3. a bed board; 31. a support bar; 32. a non-slip mat; 4. a universal wheel; 5. a lifting assembly; 51. a mounting frame; 511. a base plate; 512. a vertical plate; 5121. a waist-shaped hole; 52. a slider; 53. a rotating shaft; 531. a handle; 54. a cam; 55. a spring; 56. a bolt; 6. a locking assembly; 61. a ratchet wheel; 62. a pawl; 7. a support assembly; 71. a sleeve; 72. a stud; 73. a support plate; 74. and (7) a rubber pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sofa bed convenient to remove, including back 1, perpendicular and with back 1 fixed seat 2, keep away from 1 one side articulated bed board 3 of back with seat 2, install in 2 bottom surfaces of seat universal wheels 4 all around and set up the lifting unit 5 that is used for sofa bed jack-up all around in 2 bottom surfaces of seat, seat 2 and bed board 3 are cuboid platelike.

As shown in fig. 2, the lifting assembly 5 includes a mounting bracket 51, a slider 52, a rotating shaft 53 and a cam 54, the mounting bracket 51 is of an inverted U shape, the mounting bracket 51 includes a bottom plate 511 and two vertical plates 512, the bottom plate 511 is parallel to the seat 2, and the bottom plate 511 is fixed on the bottom surface of the seat 2, the two vertical plates 512 are provided, the vertical plates 512 are perpendicular to the bottom plate 511, and the two vertical plates 512 are respectively fixed at two ends of the bottom plate 511. The vertical plate 512 is symmetrically provided with waist-shaped holes 5121, the opening direction of the waist-shaped holes 5121 is perpendicular to the bottom plate 511, the bolts 56 penetrate through the waist-shaped holes 5121, one ends of the bolts 56 are provided with threads, the other ends of the bolts 56 are smooth, the threaded ends are in threaded connection with the sliding block 52, the smooth ends are in sliding connection with the waist-shaped holes 5121, and the diameters of the nuts of the bolts 56 are larger than the width of the waist-shaped holes 5121. The rotating shaft 53 is located above the sliding block 52, the rotating shaft 53 penetrates through the vertical plate 512 and is rotatably connected with the vertical plate 512, the cam 54 is fixedly sleeved in the middle of the rotating shaft 53, springs 55 are symmetrically arranged at two ends of the sliding block 52, one end of each spring 55 is fixed to the bottom surface of the bottom plate 511, the other end of each spring 55 is fixed to the upper end face of the sliding block 52, the elastic force of each spring 55 is always upward, and the upper end face of the sliding block 52 is. The end of the rotating shaft 53 is fixed with a handle 531 for driving the rotating shaft 53 to rotate, the rotating shaft 53 is limited to rotate through the locking assembly 6, the locking assembly 6 comprises a ratchet wheel 61 and a pawl 62, the ratchet wheel 61 is fixedly sleeved on the rotating shaft 53, and the pawl 62 is rotatably connected with the vertical plate 512 and matched with the ratchet wheel 61. The ratchet wheel 61 is matched with the pawl 62, so that self-locking is realized in the unidirectional rotation process of the rotating shaft 53, the pawl 62 is rotated to separate the pawl 62 from the ratchet wheel 61, and the rotating shaft 53 can rotate reversely.

As shown in fig. 2, the support assembly 7 is arranged on the bottom surface of the slider 52, the support assembly 7 includes a sleeve 71, a stud 72 and a support plate 73, the sleeve 71 is fixed on the bottom surface of the slider 52, the opening direction of the sleeve 71 is vertical downward, the stud 72 is in threaded connection with the sleeve 71, and the support plate 73 is fixed at the lower end of the stud 72. The stud 72 is in threaded connection with the sleeve 71, the height between the support plate 73 and the bottom surface of the seat plate 2 can be further adjusted by rotating the stud 72, the contact area between the support plate 73 and the ground is large, and the support effect of the support assembly 7 can be improved. The bottom surface of the support plate 73 is fixed with a rubber pad 74, and the rubber pad 74 can increase the friction force between the support plate 73 and the ground, so as to prevent the sofa bed from sliding.

As shown in fig. 3, the side walls at both sides of the bed plate 3 in the width direction and the side walls far away from the length direction of the hinged end are rotatably connected with support rods 31, and the end of each support rod 31 contacting with the ground is fixed with a non-slip mat 32. After the bed board 3 is opened, the supporting rod 31 has a supporting effect on the bed board 3, and the anti-slip pad 32 arranged on the supporting rod 31 increases the friction force between the supporting rod 31 and the ground, so that the sofa bed is prevented from moving after being stressed.

As shown in fig. 1, the armrests 21 are fixed at the two ends of the seat board 2, the armrests 21 are arranged perpendicular to the seat board 2, the armrests 21 are arranged, a person sitting on the sofa can select various sitting postures, and the armrests 21 can support the upper limbs; on the other hand, the handrail 21 is arranged to hide the support rod 31 rotatably connected with the bed board 3, so that the support rod 31 is prevented from being exposed, and potential safety hazards are avoided.

The implementation principle of the embodiment is as follows: when the sofa bed is used as a sofa, the bed plate 3 is superposed with the seat plate 2, and the universal wheels 4 are arranged above the ground; when the sofa bed is used as a bed, the universal wheels 4 are contacted with the ground, and the bed plate 3 is opened after the sofa bed is moved to a proper position by moving the universal wheels 4. When the sofa bed needs to be moved, the rotating shaft 53 is rotated, the rotating shaft 53 drives the cam 54 to rotate, when the cam 54 rotates to different positions, the distance between the sliding block 52 and the ground is different, when the cam 54 is in a horizontal state, and the distance between the rotating center of the cam 54 and the lower edge of the cam 54 is the minimum, the sliding block 52 slides upwards under the elastic force of the spring 55, the supporting component 7 is separated from the ground, at the moment, the universal wheel 4 lands on the ground, the universal wheel 4 is pushed to realize the movement of the sofa bed, and the operation process is labor-saving; when the distance between the rotating point of the cam 54 and the edge below the cam 54 is the largest, the sliding block 52 slides downwards, the sliding block 52 drives the supporting component 7 to contact with the ground, the sofa bed is supported, the universal wheel 4 is separated from the ground at the moment, the sofa bed is convenient to move, after the sofa bed is moved, the universal wheel 4 is not stressed, the sofa bed can be stably placed on the ground, and the service life of the universal wheel 4 can be prolonged.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a sofa bed convenient to remove, includes back (1), perpendicular and seat (2) fixed with back (1), keep away from back (1) one side articulated bed board (3) with seat (2), install universal wheel (4) around seat (2) bottom surface and set up lifting unit (5) that are used for sofa bed jack-up all around seat (2) bottom surface, its characterized in that: the lifting assembly (5) comprises a mounting frame (51), a sliding block (52) in sliding connection with the mounting frame (51), a rotating shaft (53) in rotating connection with the mounting frame (51) and a cam (54) fixedly sleeved on the rotating shaft (53), the mounting frame (51) is of an inverted U shape, the mounting frame (51) comprises a bottom plate (511) and vertical plates (512) fixed on two sides of the bottom plate (511), and the rotating shaft (53) penetrates through the vertical plates (512) and is in rotating connection with the vertical plates (512); the cam (54) is abutted to the upper end face of the sliding block (52), springs (55) are arranged at two ends of the sliding block (52), one end of each spring (55) is fixed to the bottom plate (511), the other end of each spring is fixed to the upper end face of the sliding block (52), the rotating shaft (53) is limited to rotate through a locking assembly (6), and a supporting assembly (7) is arranged on the bottom face of the sliding block (52).

2. A portable sofa sleeper as claimed in claim 1, wherein: the locking assembly (6) comprises a ratchet wheel (61) fixedly sleeved on the rotating shaft (53) and a pawl (62) which is rotatably connected to the vertical plate (512) and matched with the ratchet wheel (61).

3. A portable sofa sleeper as claimed in claim 1, wherein: and one end of the rotating shaft (53) is fixedly provided with a handle (531) for driving the rotating shaft to rotate.

4. A portable sofa sleeper as claimed in claim 1, wherein: waist-shaped holes (5121) are symmetrically formed in the vertical plate (512), and the forming direction of the waist-shaped holes (5121) is perpendicular to the bottom plate (511); threaded connection has bolt (56) on the lateral wall of slider (52), bolt (56) keep away from the one end of slider (52) is smooth and with waist shape hole (5121) sliding connection, the diameter of bolt (56) nut end is greater than the width in waist shape hole (5121).

5. A portable sofa sleeper as claimed in claim 1, wherein: the supporting component (7) comprises a sleeve (71) fixed on the bottom surface of the sliding block (52), a stud (72) in threaded connection with the sleeve (71), and a supporting plate (73) fixed on the bottom surface of the stud (72).

6. The portable sofa sleeper of claim 5, wherein: a rubber pad (74) is fixed on the bottom surface of the supporting plate (73).

7. A portable sofa sleeper as claimed in claim 1, wherein: the bed board (3) all rotates on the lateral wall of both sides of width direction and keep away from hinged end length direction and is connected with bracing piece (31), the tip that bracing piece (31) and ground contact is fixed with slipmat (32).

8. A portable sofa sleeper as claimed in claim 1, wherein: handrails (21) are fixed at both ends of the seat plate (2).