Novel sofa and sofa backrest lifting rack

Abstract

The utility model provides a novel sofa and a sofa backrest lifting frame, relates to the technical field of furniture, and comprises a fixed frame and a sliding frame, and the sliding frame is movably connected with the fixed frame through a lifting device in a manner of ascending or descending relative to the fixed frame. The sofa backrest lifting frame is arranged between a sofa body and a backrest, the fixing frame is fixedly installed on a sofa seat, the output end of the driving assembly is driven to stretch out and draw back, the sliding assembly and the sliding frame are driven to slidably ascend or descend relative to the fixing frame, so that the backrest can slide relative to the sofa body, the structure is simple, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture technical field especially a novel sofa and sofa backrest lifting frame. BACKGROUND

[0002] The existing sofa in order to adapt to different user groups, the backrest is generally set to the structure of liftable adjustment. When needing to raise the backrest, only need to control the telescopic end of telescopic device to stretch out, and then can push the backrest to ascend relative to the sofa main body. When needing to lower the backrest, only need to press the backrest manually, and the backrest can be lowered to the low position.

[0003] But the existing lifting frame structure is more complex, need a structure simple and can reach the lifting frame of sofa backrest lifting. UTILITY MODEL CONTENTS

[0004] The utility model overcomes the shortcoming in the prior art, provides a novel sofa and sofa backrest lifting frame.

[0005] In order to solve the above technical problem, the utility model is realized through the following technical schemes:

[0006] A novel sofa backrest lifting frame, including fixed frame and sliding frame, the sliding frame is with the fixed frame swing joint through the lifting device and can ascend or descend relative to the fixed frame.

[0007] Preferably, the lifting device includes two symmetrical sliding assemblies, the sliding assembly is fixedly installed on the sliding frame and is swing jointed with the fixed frame;

[0008] Two sliding assemblies are equipped with drive assembly between the sliding assembly, the drive assembly output is connected with the sliding frame, and the other end is connected with the fixed frame;

[0009] Drive the telescopic drive assembly output, drive the sliding assembly and the sliding frame to slide and ascend or slide and descend relative to the fixed frame.

[0010] Preferably, the sliding assembly includes linear bearing sliding block, the linear bearing sliding block is fixedly installed on the sliding frame, and the linear bearing sliding block is swing jointed with the fixed frame;

[0011] The sliding assembly also includes the sliding rod vertically arranged on the fixed frame, and the linear bearing sliding block is movably sleeved on the sliding rod;

[0012] Drive the telescopic drive assembly output, drive the linear bearing sliding block to slide up and down on the sliding rod, and drive the sliding frame to slide and ascend or slide and descend relative to the fixed frame.

[0013] Preferably, the driving assembly is an electric push rod or a pneumatic spring.

[0014] Preferably, the sliding frame comprises upper and lower end connecting rods arranged oppositely, and the upper and lower end connecting rods are connected by two side connecting rods to form a quadrilateral fixed frame.

[0015] The upper end connecting rod is connected to the output end of the driving assembly, the linear bearing sliders are symmetrically mounted on the lower end connecting rod and on the same side of the driving assembly, and the sliding frame is movably connected to one side of the fixed frame through the linear bearing sliders at the lower end and the driving assembly.

[0016] Preferably, the two side connecting rods are provided with connecting structures.

[0017] Preferably, the lower end connecting rod is provided with a U-shaped rod protruding outward to form a recess, and the U-shaped rod is arranged between the two linear bearing sliders and the recess is on the same side of the linear bearing sliders.

[0018] Preferably, the fixed frame comprises a bottom connecting rod, and two symmetrical support rods are vertically arranged on the two sides of the bottom connecting rod.

[0019] The support rod is in the shape of inverted L and the horizontal axis is inward, the sliding rod is arranged on the inner side of the support rod, and the upper end of the sliding rod is connected to the horizontal axis of the L-shaped support rod.

[0020] Preferably, the bottom connecting rod is provided with a mounting plate on the lower side.

[0021] Preferably, a new sofa comprises a sofa body, a backrest, and a sofa backrest lifting frame according to any one of the above, the sofa backrest lifting frame is arranged between the sofa body and the backrest, so that the backrest can slide relative to the sofa body.

[0022] Compared with the prior art, the sofa backrest lifting frame has the following advantages:

[0023] A new sofa and sofa backrest lifting frame, the sliding frame is installed with the fixed frame through the lifting device, so that the sliding frame can be raised or lowered relative to the fixed frame, the lifting device comprises a sliding assembly and a driving assembly, the sofa backrest lifting frame is arranged between the sofa body and the backrest, the fixed frame is fixedly installed on the sofa seat, the output end of the driving assembly is driven to stretch or retract, the sliding assembly and the sliding frame are driven to slide upward or downward relative to the fixed frame, so that the backrest can slide relative to the sofa body, and the structure is simple and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present utility model, and are used together with embodiments of the present utility model to explain the present utility model, and do not constitute limitations on the present utility model, and in the drawings:

[0025] Figure 1 is the first structure schematic view of the elevator rack of the present utility model;

[0026] Figure 2 is the second structure schematic view of the elevator rack of the present utility model;

[0027] Figure 3 is the third structure schematic view of the elevator rack of the present utility model;

[0028] Figure 4 is the fourth structure schematic view of the elevator rack of the present utility model;

[0029] Figure 5 is the fifth structure schematic view of the elevator rack of the present utility model;

[0030] Figure 6 is the sixth structure schematic view of the elevator rack of the present utility model;

[0031] Figure 7 is the embodiment schematic view of the elevator rack of the present utility model;

[0032] In the drawings: 1 - fixed frame; 2 - sliding frame; 3 - lifting device; 4 - driving assembly; 5 - sliding assembly; 6 - sofa main body; 7 - backrest; 101 - bottom connecting rod; 102 - supporting rod; 103 - mounting plate; 201 - upper end connecting rod; 202 - lower end connecting rod; 203 - side edge connecting rod; 204 - connecting structure; 205 - U-shaped rod; 501 - linear bearing sliding block; 502 - sliding rod. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0034] As Figures 1 to 4 shown, a novel sofa backrest lifting rack comprises a fixed frame 1 and a sliding frame 2, the sliding frame 2 is movably connected with the fixed frame 1 through a lifting device 3 and can be lifted or lowered relative to the fixed frame 1;

[0035] The lifting device 3 comprises two symmetrically arranged sliding assemblies 5, the sliding assemblies 5 are fixedly installed on the sliding frame 2 and movably connected with the fixed frame 1;

[0036] A driving assembly 4 is arranged between the two sliding assemblies 5, the output end of the driving assembly 4 is connected with the sliding frame 2, and the other end is connected with the fixed frame 1;

[0037] The driving driving assembly 4 outputs telescopic, drives the sliding assembly 5 and the sliding frame 2 to slide up or slide down relative to the fixed frame 1.

[0038] Specifically, the sliding assembly 5 includes a linear bearing slider 501, which is fixedly installed on the sliding frame 2, and the linear bearing slider 501 is movably connected with the fixed frame 1.

[0039] The sliding assembly 5 further includes a sliding rod 502 vertically arranged on the fixed frame 1, and the linear bearing slider is movably sleeved on the sliding rod 502.

[0040] The driving driving assembly 4 outputs telescopic, drives the linear bearing slider 501 to slide up and down on the sliding rod 502, and drives the sliding frame 2 to slide up or slide down relative to the fixed frame 1.

[0041] Further, the sliding frame 2 includes an upper end connecting rod 201 and a lower end connecting rod 202 arranged opposite to each other, and the upper end connecting rod 201 and the lower end connecting rod 202 are connected by two side connecting rods 203 on both sides to form a quadrilateral fixed frame 1.

[0042] The middle part of the upper end connecting rod 201 is detachably connected with the output end of the driving assembly 4 through a connecting lug or other connecting member, and the linear bearing sliders are symmetrically installed on the lower end connecting rod 202 and on the same side of the driving assembly 4. The sliding frame 2 is movably connected to one side of the fixed frame 1 through the linear bearing sliders at the lower end and the driving assembly 4, and a connecting structure 204 is arranged on the two side connecting rods 203, which facilitates the connection of the sliding frame 2 and the sofa backrest 7. Figure 1 As shown, the connecting structure 204 can be a connecting lug; as shown, the two side connecting rods 203 can be directly provided in a sheet structure and provided with mounting holes thereon, so that the whole side connecting rod 203 forms the connecting structure 204, which increases the connection area and is more convenient for installation. Figure 6

[0043] A U-shaped rod 205 is arranged in the middle part of the lower end connecting rod 202 and protrudes outward to form a recess, the U-shaped rod 205 is arranged between the two linear bearing sliders 501 and the recess is on the same side of the linear bearing sliders 501, and the driving assembly 4 is located in the recess of the U-shaped rod 205, so that the driving assembly 4 is staggered with the middle part of the lower end connecting rod 202, which is more convenient for installation and operation of the driving assembly 4.

[0044] The fixed frame 1 includes a bottom connecting rod 101, and two symmetrical support rods 102 are vertically arranged on both sides of the bottom connecting rod 101.

[0045] ​The support rod 102 is provided as an inverted L-shaped type with the horizontal axis directed inward, the sliding rod 502 is arranged inside the support rod 102, and the upper end of the sliding rod 502 is connected with the horizontal axis of the L-shaped support rod 102, and the mounting plate 103 is arranged at the lower side of the bottom connecting rod 101, so as to facilitate the connection between the fixed frame 1 and the sofa body 6.

[0046] Preferably, the driving assembly 4 is an electric push rod or a pneumatic spring.

[0047] As shown in Figures 1 to 6 the structure of the utility model is shown from different angles and applications, as shown in Figure 7 the first specific embodiment of the utility model, the backrest lifting frame is installed in the sofa body 6, wherein the sofa backrest 7 lifting frame is arranged between the sofa body 6 and the backrest 7, the fixed frame 1 is fixedly installed in the sofa body 6, the sliding frame 2 is fixedly connected with the backrest 7,

[0048] The driving driving assembly 4 outputs are telescopic, driving the sliding assembly 5 and the sliding frame 2 to slide up or slide down relative to the fixed frame 1.

[0049] As shown in Figure 4 the driving device 4 is a pneumatic spring, and the switch of the pneumatic spring is pressed downward, specifically, the upper end connecting rod 201 at the upper end of the sliding frame 2 is pressed downward, which is equivalent to pressing the backrest 7 downward; the telescopic end of the pneumatic spring can be automatically extended upward, thereby driving the sliding frame 2 to slide up relative to the fixed frame 1, when it is needed to lower the height of the sliding frame 2, the upper end of the sliding frame 2 can be pressed, which is equivalent to pressing the backrest 7 downward, so that the telescopic end of the pneumatic spring is retracted downward to the original position, thereby driving the sliding frame 2 and the backrest 7 to slide downward to the original position, the sliding assembly 5 makes the sliding of the sliding frame 2 more smooth and lubricated, and ensures that both ends of the sliding frame 2 move simultaneously, achieves the purpose of force balance, makes the operation more simple, and improves the convenience of use.

[0050] As shown in Figure 5 the driving device 4 is an electric push rod, when it is needed to adjust the height of the sofa backrest 7, the upper end screw rod is driven to be telescopic by the motor, thereby driving the sliding assembly 5 and the sliding frame 2 to slide up or slide down relative to the fixed frame 1, which is equivalent to driving the backrest 7 to slide up or slide down, so that the operation becomes more simple, and the convenience of use is improved.

[0051] It should be pointed out finally: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the embodiment, for the skilled person in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A new type of sofa backrest lifter frame, characterized in that: The utility model provides a lifting device, including fixed frame (1) and sliding frame (2), the sliding frame (2) is with the fixed frame (1) movable connection through the lifting device (3) can ascend or descend relative to the fixed frame (1), The lifting device (3) includes two symmetrical sliding assembly (5), the sliding assembly (5) is fixedly installed on the sliding frame (2) and is movably connected with the fixed frame (1), Two sliding assembly (5) between the drive assembly (4) is connected with the sliding frame (2) on the output end of the drive assembly (4), the other end is connected with the fixed frame (1), Drive the telescopic output end of the drive assembly (4), drive the sliding assembly (5) and the sliding frame (2) relative to the fixed frame (1) sliding ascension or sliding descent.

2. A new type of sofa backrest lifter frame according to claim 1, characterized in that: The sliding assembly (5) includes linear bearing sliding block (501), the linear bearing sliding block (501) is fixedly installed on the sliding frame (2), and the linear bearing sliding block (501) is movably connected with the fixed frame (1), The sliding assembly (5) further includes the sliding rod (502) vertically arranged on the fixed frame (1), and the linear bearing sliding block (501) is movably sleeved on the sliding rod (502), Drive the telescopic output end of the drive assembly (4), drive the linear bearing sliding block (501) on the sliding rod (502) and drive the sliding frame (2) relative to the fixed frame (1) sliding ascension or sliding descent.

3. A new type of sofa backrest lifter frame according to claim 2, characterized in that: The drive assembly (4) is an electric push rod or a pneumatic spring.

4. A new sofa backrest lifter frame according to claim 2 or 3, characterized in that: The sliding frame (2) includes upper end connecting rod (201) and lower end connecting rod (202) oppositely arranged, the upper end connecting rod (201) and the lower end connecting rod (202) are connected by two side connecting rods (203) on both sides to form a quadrilateral fixed frame (1), The output end of the drive assembly (4) is connected to the middle of the upper end connecting rod (201), the linear bearing sliding block (501) is symmetrically installed on the lower end connecting rod (202) and on the same side of the drive assembly (4), and the sliding frame (2) is movably connected to one side of the fixed frame (1) through the linear bearing sliding block (501) at the lower end and the drive assembly (4).

5. A new type of sofa backrest lifter frame according to claim 4, characterized in that: Two side connecting rods (203) are provided with connecting structures (204).

6. A new type of sofa backrest lifter frame according to claim 4, characterized in that: The lower end connecting rod (202) is provided with a U-shaped rod (205) protruding outward to form a recess in the middle, and the U-shaped rod (205) is arranged between the two linear bearing sliding blocks (501) and the recess is on the same side of the linear bearing sliding blocks (501).

7. A new type of sofa backrest lifter frame according to claim 4, characterized in that: The fixed frame (1) includes a bottom connecting rod (101), and two symmetrical support rods (102) are vertically arranged on both sides of the bottom connecting rod (101); The support rod (102) is in the shape of inverted L and the horizontal axis is inward, and the sliding rod (502) is arranged on the inner side of the support rod (102), and the upper end of the sliding rod (502) is connected with the horizontal axis of the L-shaped support rod (102).

8. A new type of sofa backrest lifter frame according to claim 7, characterized in that: The bottom connecting rod (101) is provided with a mounting plate (103) on the lower side.

9. A new type of sofa characterized in that: The sofa back lifting frame as claimed in any one of claims 1 to 8 is arranged between the sofa body (6) and the back (7) to enable the back to slide relative to the sofa body (6).

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