Telescopic sofa

Abstract

The utility model relates to the field of furniture, and discloses a telescopic sofa which comprises a base, a backrest frame and a cushion frame, the backrest frame is fixed on the base and arranged on the front side of the cushion frame, the telescopic sofa further comprises a seat plate assembly and a sliding device, and the sliding device is arranged on the base; the seat cushion frame is arranged on a movable part of the sliding device, and the seat cushion frame slides back and forth relative to the base through the sliding device; the seat plate assembly is used for sitting, and the seat plate assembly is arranged between the seat cushion frame and the backrest frame.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a telescopic sofa. Background Art

[0002] At present, in order to meet people's use needs, sofas are usually equipped with footrests so that passengers can use the footrests to support their legs when using the sofa. However, when the footrests are not in use, they still occupy indoor space, resulting in insufficient indoor space utilization. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve at least one of the above-mentioned technical problems and to provide a retractable sofa.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A telescopic sofa comprises a base, a backrest frame and a cushion frame, wherein the backrest frame is fixed on the base and arranged in front of the cushion frame. The telescopic sofa also comprises a seat plate assembly and a sliding device, wherein the sliding device is arranged on the base; the cushion frame is arranged on the movable part of the sliding device, and the cushion frame slides relatively forward and backward between the sliding device and the base; the seat plate assembly is used for sitting, and the seat plate assembly is arranged between the cushion frame and the backrest frame.

[0006] As a further improvement of the above technical solution, the seat assembly includes a seat body and a swing arm, the lower end of the swing arm is hinged to the base, the upper end of the swing arm is hinged to the seat body, the seat body is hinged to the cushion frame, and when the sliding device drives the cushion frame to move to the rear end of the stroke, the seat body is parallel to the top surface of the cushion frame.

[0007] As a further improvement of the above technical solution, the backrest frame includes a first side panel and a second side panel arranged on the left and right, and a backrest beam connecting the first side panel and the second side panel, a first accommodating space is provided between the first side panel and the second side panel, and the first side panel and the second side panel are respectively fixedly connected to the base; when the sliding device drives the seat cushion frame to move to the front end, the seat board main body is stored in the first accommodating space.

[0008] As a further improvement of the above technical solution, the base includes a left fixed plate, a right fixed plate and a connecting beam, the left fixed plate and the right fixed plate are arranged along the left and right sides, the left fixed plate and the right fixed plate extend vertically respectively, the connecting beam is arranged between the left fixed plate and the right fixed plate, the two ends of the connecting beam are respectively fixedly connected to the left fixed plate and the right fixed plate, and the left fixed plate and the right fixed plate are respectively fixedly connected to the backrest frame.

[0009] As a further improvement of the above technical solution, the sliding device also includes a guide frame, a guide rod, a plurality of sliders and a plurality of pulleys, all of the guide frames are fixed on the base, the guide rods are fixed on the guide frames one by one, the two guide rods are arranged in the left-right direction, the guide rods extend in the front-to-back direction, each slider is provided with a plurality of pulleys, the pulleys on each slider are divided into two rows of pulley groups arranged at intervals up and down, more than two pulleys are arranged in each pulley group, the pulleys of each pulley group are arranged in the front-to-back direction, the guide rods are arranged between the pulley groups arranged at intervals up and down, all of the pulleys are against the guide rods, and all of the sliders are fixedly connected to the cushion frame.

[0010] As a further improvement of the above technical solution, a groove surrounding the circumferential surface of the pulley is opened on the circumferential surface of the pulley, and the side surface of the guide rod extends into the groove.

[0011] As a further improvement of the above technical solution, two sliding devices are provided, and the two sliding devices are arranged at intervals on the left and right.

[0012] As a further improvement of the above technical solution, the telescopic sofa also includes a driving device, one end of which is connected to the base, and the other end of which is connected to the cushion frame.

[0013] As a further improvement of the above technical solution, the driving device includes an electric cylinder, one end of the electric cylinder is hinged to the base, and the other end of the electric cylinder is hinged to the cushion frame.

[0014] As a further improvement of the above technical solution, the cushion frame includes a cushion body, a transverse frame and a vertical frame, the cushion body is arranged on the transverse frame, the vertical frame is fixedly connected to the transverse frame, and the vertical frame is used to support the ground.

[0015] The beneficial effects of the utility model are as follows: the seat cushion frame is used for the user to sit on, and the backrest frame can be used for the user to lean against the back. When the user needs to place the legs, the seat cushion frame can be slid backward so that the seat cushion frame extends backward. After the seat cushion frame slides backward, the user can sit on the seat board assembly, and the user's legs can be placed on the top surface of the seat cushion frame, thereby achieving the function of supporting the user's legs. When there is no need to place the legs, the seat cushion frame can be slid forward, thereby reducing the space occupied by the seat cushion frame in the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a bottom view of the telescopic sofa of the utility model;

[0017] Figure 2 This is the axonometric view of the telescopic sofa of the utility model. Figure 1 ;

[0018] Figure 3 This is the axonometric view of the telescopic sofa of the utility model. Figure 2 ;

[0019] Figure 4 It is an axonometric drawing of the guide frame, guide rod, slider and pulley of the utility model;

[0020] Figure 5 This is the axonometric view of the telescopic sofa of the utility model. Figure 3 .

[0021] In the accompanying drawings: 1-base, 11-left fixed plate, 12-right fixed plate, 13-connecting beam, 2-backrest frame, 21-first side panel, 22-second side panel, 23-backrest beam, 3-cushion frame, 31-cushion body, 32-transverse frame, 33-vertical frame, 4-sliding device, 41-guide frame, 42-guide rod, 43-slider, 44-pulley, 441-groove, 5-electric cylinder, 61-seat body, 62-swing arm. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the above briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0024] Reference Figure 1 to Figure 4 A telescopic sofa comprises a base 1, a backrest frame 2 and a cushion frame 3, wherein the backrest frame 2 is fixed on the base 1 and arranged in front of the cushion frame 3. The telescopic sofa further comprises a seat plate assembly and a sliding device 4, wherein the sliding device 4 is arranged on the base 1; the cushion frame 3 is arranged on the movable part of the sliding device 4, and the cushion frame 3 slides relatively forward and backward between the sliding device 4 and the base 1; the seat plate assembly is used for sitting, and the seat plate assembly is arranged between the cushion frame 3 and the backrest frame 2.

[0025] As can be seen from the above, the seat cushion frame 3 is used for the user to sit on, and the backrest frame 2 can be used for the user to lean against the back. When the user needs to place his legs, the seat cushion frame 3 can be slid backward so that the seat cushion frame 3 extends backward. After the seat cushion frame 3 slides backward, the user can sit on the seat board assembly, and the user's legs can be placed on the top surface of the seat cushion frame 3, realizing the function of supporting the user's legs. When there is no need to place the legs, the seat cushion frame 3 can be slid forward, reducing the space occupied by the seat cushion frame 3 in the room.

[0026] After the seat cushion frame 3 moves backward to the end of the stroke, the seat board assembly is used for the user to sit. Therefore, when the leg is not needed, the user sits on the seat cushion frame 3. To this end, in some embodiments, the seat board assembly includes a seat board body and a swing arm, the lower end of the swing arm is hinged to the base 1, the upper end of the swing arm is hinged to the seat board body, the seat board body is hinged to the seat cushion frame 3, and when the sliding device 4 drives the seat cushion frame 3 to move to the rear end of the stroke, the seat board body is parallel to the top surface of the seat cushion frame 3. The structure is simple and convenient to set up. The two ends of the seat board body are respectively hinged to the swing arm and the seat cushion frame 3, and the swing arm is hinged to the base 1. In this way, the seat board body can be swung to be unfolded or stored. When the leg is not needed, the seat cushion frame 3 moves forward to the end of the stroke. At this time, the seat board body swings to a vertical or nearly vertical state, reducing the space occupied by the seat board body to achieve a storage state. When the legs need to be placed, the seat frame 3 moves backward to the end of the travel, at which time the swing arm tilts backward and upward, and the seat body is roughly parallel to the horizontal plane, that is, the seat body is roughly parallel to the top surface of the seat frame 3. The seat frame 3 moves backward to the end of the travel and is blocked, and at the same time, the swing arm swings backward to tilt backward and upward, so that the user can sit on the seat body stably.

[0027] Preferably, in order to make the seat body more stable when in use, two swing arms are provided, and both ends of each swing arm are respectively hinged to the seat body and the base 1.

[0028] When the cushion frame 3 moves forward to the end of the stroke, the seat board body should be stored. In order to provide a space for storing the seat board body, in some embodiments, the backrest frame 2 includes a first side panel 21 and a second side panel 22 arranged on the left and right, and a backrest crossbeam 23 connecting the first side panel 21 and the second side panel 22. A first accommodating space is provided between the first side panel 21 and the second side panel 22. The first side panel 21 and the second side panel 22 are respectively fixedly connected to the base 1. When the sliding device 4 drives the cushion frame 3 to move to the front end, the seat board body is stored in the first accommodating space. The structure is simple and convenient to set. The lower end of the swing arm is hinged to the base 1, and the rear side of the seat board body is hinged to the cushion frame 3. When the cushion frame 3 moves forward from the rear end of the stroke to the end of the stroke, the swing arm swings from the rear upper tilt to the front, and finally makes the front side of the seat board body swing downward, and the seat board body swings downward and is stored between the first side panel 21 and the second side panel 22.

[0029] The backrest frame 2 is fixedly connected to the base 1, and the cushion frame 3 is installed on the base 1 through a sliding device 4. In some embodiments, the base 1 includes a left fixed plate 11, a right fixed plate 12 and a connecting crossbeam 13, the left fixed plate 11 and the right fixed plate 12 are arranged along the left and right sides, the left fixed plate 11 and the right fixed plate 12 extend vertically respectively, the connecting crossbeam 13 is arranged between the left fixed plate 11 and the right fixed plate 12, and the two ends of the connecting crossbeam 13 are fixedly connected to the left fixed plate 11 and the right fixed plate 12 respectively, and the left fixed plate 11 and the right fixed plate 12 are fixedly connected to the backrest frame 2 respectively.

[0030] In actual use, the left fixing plate 11 and / or the right fixing plate 12 are provided with a sliding device 4 .

[0031] The seat cushion frame 3 is arranged on the sliding device 4, and the sliding device 4 is arranged on the base 1. The seat cushion frame 3 moves in the front-to-back direction through the sliding device 4, so that the seat cushion frame 3 and the base 1 can move relative to each other in the front-to-back direction. In some embodiments, the sliding device 4 also includes a guide frame 41, a guide rod 42, a plurality of sliders 43 and a plurality of pulleys 44, all of the guide frames 41 are fixed on the base 1, the guide rods 42 are fixed on the guide frames 41 one by one, two guide rods 42 are arranged in the left-right direction, the guide rods 42 extend in the front-to-back direction, each of the sliders 43 is provided with a plurality of pulleys 44, the pulleys 44 on each of the sliders 43 are divided into two rows of pulley groups arranged at intervals in the upper and lower directions, the pulleys 44 in each pulley group are arranged at least two, the pulleys 44 of each pulley group are arranged in the front-to-back direction, the guide rods 42 are arranged between the pulley groups arranged at intervals in the upper and lower directions, all of the pulleys 44 are against the guide rods 42, and all of the sliders 43 are fixedly connected to the seat cushion frame 3. The structure is simple and easy to set up. The guide rod 42 is set between the upper and lower pulley blocks. Clamping the guide rod 42 by the pulley block can effectively reduce the up and down shaking of the cushion frame 3, making the cushion frame 3 more stable when in use.

[0032] In actual use, the two ends of the guide rod 42 are fixedly connected to the guide frame 41 respectively. On the one hand, the guide frame 41 can be used to limit the position of the two ends of the guide rod 42, thereby limiting the movement of the slider 43 within the length range of the guide rod 42; on the other hand, the guide frame 41 is fixedly connected to the two ends of the guide rod 42, thereby reserving space for the sliding cooperation of the pulley 44 and the guide rod 42, thereby avoiding interference of the pulley 44 during the sliding process.

[0033] In order to reduce the risk of the pulley 44 detaching from the guide rod 42 , in some embodiments, a groove 441 surrounding the circumferential surface of the pulley 44 is opened on the circumferential surface of the pulley 44 , and the side surface of the guide rod 42 extends into the groove 441 .

[0034] In order to enable the seat cushion frame 3 to stably move in the front-rear direction, in some embodiments, two sliding devices 4 are provided, and the two sliding devices 4 are arranged at intervals on the left and right.

[0035] When the legs need to be placed on the cushion frame 3, the cushion frame 3 needs to be moved backwards. In order to reduce the output of manpower during the backward movement of the cushion frame 3. In some embodiments, the telescopic sofa further includes a driving device, one end of which is connected to the base 1, and the other end of which is connected to the cushion frame 3. The structure is simple and easy to set up.

[0036] The driving device is used to drive the cushion frame 3 to reciprocate in the front-to-back direction. In some embodiments, the driving device includes an electric cylinder 5, one end of which is hinged to the base 1, and the other end of which is hinged to the cushion frame 3. When in use, the cushion frame 3 can be driven to reciprocate in the front-to-back direction by controlling the electric cylinder 5.

[0037] In addition, the driving device may also be a cylinder, which is used to replace the above-mentioned electric cylinder 5.

[0038] In some embodiments, one end of the electric cylinder 5 is hinged to the connecting beam 13 , and the other end of the electric cylinder 5 is hinged to the cushion frame 3 .

[0039] The cushion frame 3 is used for sitting. In some embodiments, the cushion frame 3 includes a cushion body 31, a transverse frame 32 and a vertical frame 33. The cushion body 31 is arranged on the transverse frame 32, and the vertical frame 33 is fixedly connected to the transverse frame 32. The vertical frame is used to support the ground. When in use, the cushion body 31 can be used for sitting or placing legs. By setting the vertical frame 33, the vertical load borne by the pulley 44 and the guide rod 42 can be reduced, making the transverse frame 32 more stable.

[0040] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A telescopic sofa, comprising a base (1), a backrest frame (2) and a cushion frame (3), wherein the backrest frame (2) is fixed on the base (1), and the backrest frame (2) is arranged on the front side of the cushion frame (3), characterized in that: The telescopic sofa further comprises a seat plate assembly and a sliding device (4), wherein the sliding device (4) is arranged on the base (1); the seat cushion frame (3) is arranged on the movable part of the sliding device (4), and the seat cushion frame (3) slides relatively forward and backward between the sliding device (4) and the base (1); the seat plate assembly is used for sitting, and the seat plate assembly is arranged between the seat cushion frame (3) and the backrest frame (2).

2. The retractable sofa according to claim 1, characterized in that: The seat assembly comprises a seat body and a swing arm, wherein the lower end of the swing arm is hinged to the base (1), the upper end of the swing arm is hinged to the seat body, and the seat body is hinged to the cushion frame (3). When the sliding device (4) drives the cushion frame (3) to move to the rear end of the stroke, the seat body is parallel to the top surface of the cushion frame (3).

3. The retractable sofa according to claim 2, characterized in that: The backrest frame (2) comprises a first side panel (21) and a second side panel (22) arranged on the left and right, and a backrest crossbeam (23) connecting the first side panel (21) and the second side panel (22); a first accommodating space is provided between the first side panel (21) and the second side panel (22); the first side panel (21) and the second side panel (22) are respectively fixedly connected to the base (1); when the sliding device (4) drives the cushion frame (3) to move to the front end, the seat board body is stored in the first accommodating space.

4. The retractable sofa according to claim 1, characterized in that: The base (1) comprises a left fixed plate (11), a right fixed plate (12) and a connecting crossbeam (13); the left fixed plate (11) and the right fixed plate (12) are arranged along the left and right sides; the left fixed plate (11) and the right fixed plate (12) respectively extend vertically; the connecting crossbeam (13) is arranged between the left fixed plate (11) and the right fixed plate (12); two ends of the connecting crossbeam (13) are respectively fixedly connected to the left fixed plate (11) and the right fixed plate (12); the left fixed plate (11) and the right fixed plate (12) are respectively fixedly connected to the backrest frame (2).

5. The retractable sofa according to claim 1, characterized in that: The sliding device (4) further comprises a guide frame (41), a guide rod (42), a plurality of sliders (43) and a plurality of pulleys (44); all the guide frames (41) are fixed on the base (1); the guide rods (42) are fixed on the guide frames (41) one by one; two guide rods (42) are arranged in the left-right direction; the guide rods (42) extend in the front-back direction; each slider (43) is provided with a plurality of pulleys (44); the pulleys (44) on each slider (43) are divided into two rows of pulley groups arranged at intervals in the upper and lower directions; more than two pulleys (44) are arranged in each pulley group; the pulleys (44) of each pulley group are arranged in the front-back direction; the guide rods (42) are arranged between the pulley groups arranged at intervals in the upper and lower directions; all the pulleys (44) are against the guide rods (42); and all the sliders (43) are fixedly connected to the cushion frame (3).

6. The retractable sofa according to claim 5, characterized in that: A groove (441) surrounding the circumferential surface of the pulley (44) is provided on the circumferential surface of the pulley (44), and the side surface of the guide rod (42) extends into the groove (441).

7. The retractable sofa according to claim 5, characterized in that: Two sliding devices (4) are provided, and the two sliding devices (4) are arranged at intervals on the left and right.

8. The retractable sofa according to claim 1, characterized in that: The telescopic sofa also includes a driving device, one end of which is connected to the base (1), and the other end of which is connected to the cushion frame (3).

9. The retractable sofa according to claim 8, characterized in that: The driving device comprises an electric cylinder (5), one end of the electric cylinder (5) is hinged to the base (1), and the other end of the electric cylinder (5) is hinged to the cushion frame (3).

10. The retractable sofa according to claim 1, characterized in that: The seat cushion frame (3) comprises a seat cushion body (31), a transverse frame (32) and a vertical frame (33); the seat cushion body (31) is arranged on the transverse frame (32); the vertical frame (33) is fixedly connected to the transverse frame (32); and the vertical frame is used to support the ground.

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