Telescopic sofa

Abstract

The utility model relates to the technical field of sofas, in particular to a telescopic sofa which comprises a backrest frame, a containing cavity which is formed in the backrest frame and provided with an opening, a lengthening piece movably arranged in the containing cavity, and a sliding frame which is arranged on the side, provided with the opening, of the backrest frame in a sliding mode. A first connecting rod assembly is arranged between the lengthening piece and the sliding frame, the first connecting rod assembly is used for pulling one end of the lengthening piece when the sliding frame slides so that the lengthening piece can penetrate out of the opening of the containing cavity, and a second connecting rod assembly is arranged between the lengthening piece and the backrest frame. The second connecting rod assembly is used for limiting the lengthening piece to be gradually overturned to be in a horizontal state around the hinged position of the sliding frame and the lengthening piece when the sliding frame drives the lengthening piece to penetrate out of the containing cavity.

Description

Technical Field

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

[0002] The sofa is one of the most common pieces of furniture in every household. However, the common sofas on the market have too single functions and cannot meet all the needs of customers. For example, when there are guests staying at home or there are not enough beds, resting on an ordinary sofa will definitely make you feel uncomfortable.

[0003] On December 27, 2022, the authorization was disclosed to provide a sofa with a telescopic function, and its authorization announcement number is: CN218127721U. The utility model includes a sofa body and a backrest frame; the backrest frame is installed on the sofa body, and the sofa body is provided with a sofa board telescopic assembly and a telescopic drive assembly, and the telescopic drive assembly is used to control the sofa board telescopic assembly to extend or retract; the sofa board telescopic assembly includes an extension plate slide rail, a bottom slide rail, a pulley, an extension plate, a hinge, a supporting steel frame, a sofa bottom frame, a sliding frame and a slide; the extension plate slide rail and the bottom slide rail are respectively installed on the inner walls on both sides of the sofa body and the backrest frame; the pulleys are respectively installed on both sides of the extension plate and the sofa bottom frame, and the extension plate and the sofa bottom frame are connected by a hinge; the supporting steel frame is installed inside the sofa body, the slide is installed in the middle position of the supporting steel frame, the sliding frame is installed on the sofa bottom frame, and can be slidably installed on the slide.

[0004] However, the prior art has the following defects: in the prior art, in order to control the extension member to flip when the sofa is extended or retracted, a slide rail is usually set on the backrest frame, and then pulleys are set on both sides of the extension member. At the same time, it is also necessary to limit the extension trajectory of the slide rail so that the slide rail and the pulley cooperate to control the flipping of the extension member, and the structure is complicated. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a telescopic sofa.

[0006] The utility model is realized through the following technical solutions.

[0007] A telescopic sofa comprises a backrest frame, a receiving cavity with an opening provided on the backrest frame, an extension piece movably arranged in the receiving cavity, and a sliding frame with an opening on one side of the backrest frame and slidably arranged, wherein a first connecting rod assembly is arranged between the extension piece and the sliding frame, the first connecting rod assembly is used to pull one end of the extension piece when the sliding frame slides so that the extension piece passes through the opening of the receiving cavity, and a second connecting rod assembly is arranged between the extension piece and the backrest frame, the second connecting rod assembly is used to limit the extension piece from gradually turning over to a horizontal state around a hinge between the sliding frame and the extension piece when the sliding frame drives the extension piece to pass through the receiving cavity.

[0008] As a further improvement of the utility model, the first connecting rod assembly includes a transverse connecting rod with a preset length arranged on the sliding frame, and the transverse connecting rod is provided with a support rod extending upward, and the upper end of the support rod is hinged to the extension member.

[0009] As a further improvement of the utility model, at least one hinged plate is fixedly provided on the lower end surface of the extension member by bolts, and a hinged ear plate for hinged connection with the upper end of the support rod is provided on the hinged plate.

[0010] As a further improvement of the present invention, the second connecting rod assembly includes a first connecting plate arranged on the lower end surface of the extension member, a second connecting plate arranged on the backrest frame, and a second connecting rod with one end hinged to the first connecting plate and the other end hinged to the second connecting plate.

[0011] As a further improvement of the utility model, it also includes a mounting frame arranged on the side of the backrest frame having an opening, and the sliding frame can be slidably arranged on the mounting frame.

[0012] As a further improvement of the present invention, slide grooves are provided on both sides of the mounting frame, and rollers for cooperating with the slide grooves are provided on both sides of the sliding frame.

[0013] As a further improvement of the utility model, mounting plates are provided on both sides of the sliding frame, each of the rollers is rotatably provided on the mounting plates on both sides, and one end of the transverse connecting rod is fixedly provided on the mounting plates.

[0014] As a further improvement of the present invention, a sliding drive device is provided between the mounting frame and the sliding frame.

[0015] The beneficial effects of the utility model are as follows: in the utility model, the extension pad is installed on the extension piece, and the seat cushion is installed on the sliding frame. When the sliding frame is controlled to slide relative to the backrest frame, the sliding frame drives the first connecting rod assembly, and drives the extension piece to pass through the accommodating cavity through the first connecting rod assembly. At this time, the second connecting rod assembly limits the extension piece from flipping. When the sliding frame slides to a predetermined position, the second connecting rod assembly limits the extension piece from flipping to a horizontal state, thereby realizing the control of the extension of the sofa. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a detailed description of the preferred implementation examples of the present invention through the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 Another perspective structural diagram of the utility model embodiment;

[0019] Figure 3 Schematic diagram of the internal structure of the utility model embodiment;

[0020] Figure 4 A schematic diagram of the side structure of the utility model embodiment;

[0021] Figure 5 A schematic diagram of the structure of the sliding frame of the utility model embodiment;

[0022] Figure 6 Another perspective structural diagram of the sliding frame of the utility model embodiment;

[0023] Figure 7 This is a schematic diagram of the mounting plate structure of an embodiment of the utility model.

[0024] Numbers in the figure: back frame 1, accommodating cavity 2, extension member 3, sliding frame 4, transverse connecting rod 5, support rod 6, hinged plate 7, hinged ear plate 8, first connecting plate 9, second connecting plate 10, second connecting rod 11, mounting frame 12, slide groove 13, roller 14, mounting plate 15, base 16, back cushion 17, seat cushion 18, extension cushion 19. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0027] refer to Figures 1 to 7 , the utility model embodiment discloses:

[0028] A telescopic sofa comprises a backrest frame 1, a receiving cavity 2 with an opening provided on the backrest frame 1, an extension member 3 movably arranged in the receiving cavity 2, and a sliding frame 4 slidably arranged on one side of the backrest frame 1 with an opening, a first connecting rod assembly is arranged between the extension member 3 and the sliding frame 4, the first connecting rod assembly is used to pull one end of the extension member 3 when the sliding frame 4 slides so that the extension member 3 passes through the opening of the receiving cavity 2, a second connecting rod assembly is arranged between the extension member 3 and the backrest frame 1, and the second connecting rod assembly is arranged between the extension member 3 and the backrest frame 1, and the second connecting rod assembly is arranged between the extension member 3 and the backrest frame 1. The rod assembly is used to limit the extension piece 3 from gradually flipping to a horizontal state around the hinge between the sliding frame 4 and the extension piece 3 when the sliding frame 4 drives the extension piece 3 to pass through the accommodating cavity 2; when the sliding frame 4 slides relative to the backrest frame 1, it drives the first connecting rod assembly, and drives the extension piece 3 to pass through the accommodating cavity 2 through the first connecting rod assembly. At this time, the second connecting rod assembly limits the extension piece 3 from flipping. When the sliding frame 4 slides to a predetermined position, the second connecting rod assembly limits the extension piece 3 from flipping to a horizontal state. The structure is simple and the operation is convenient.

[0029] The first connecting rod assembly includes a transverse connecting rod 5 with a preset length and arranged on the sliding frame 4, and a support rod 6 extending upward is arranged on the transverse connecting rod 5, and the upper end of the support rod 6 is hinged to the extension member 3; wherein, after the extension member 3 is flipped over, it is in a horizontal state, and at this time, the support rod 6 is located at the lower side of the extension member 3, and plays a supporting role for the extension member 3; at the same time, the transverse connecting rod 5 has a preset length, so that there is a preset distance between the support rod 6 and the sliding frame 4, so that the extension member 3 (and the extension pad 19 installed on the extension member) will not conflict with the sliding frame 4 and the seat cushion 18 installed on the sliding frame 4 during the flipping process, thereby preventing the flipping of the extension member 3 from being disturbed.

[0030] At least one hinge plate 7 is fixedly provided on the lower end surface of the extension member 3 by bolts, and a hinge ear plate 8 is provided on the hinge plate 7 for being hinged to the upper end of the support rod 6 by a pin shaft.

[0031] The second connecting rod assembly includes a first connecting plate 9 arranged on the lower end surface of the extension member 3, a second connecting plate 10 arranged on the backrest frame 1, and a second connecting rod 11 with one end hinged to the first connecting plate 9 through a pin and the other end hinged to the second connecting plate 10 through a pin.

[0032] It also includes a mounting frame 12 arranged on the open side of the backrest frame 1, and the sliding frame 4 can be slidably arranged on the mounting frame 12; sliding grooves 13 are opened on both sides of the mounting frame 12, and rollers 14 for cooperating with the sliding grooves 13 are arranged on both sides of the sliding frame 4; the sliding frame 4 is controlled to slide on the mounting frame 12 by cooperating with the sliding grooves 13.

[0033] Mounting plates 15 are disposed on both sides of the sliding frame 4 , and each of the rollers 14 is rotatably disposed on the mounting plates 15 on both sides, and one end of the transverse connecting rod 5 is fixedly disposed on the mounting plates 15 .

[0034] In this embodiment, a sliding drive device is arranged between the mounting frame 12 and the sliding frame 4. Specifically, mounting rods are directly arranged on the mounting plates on both sides, and a transmission seat (not shown in the figure) is arranged on the mounting rods. The sliding drive device includes a screw rod rotatably arranged on the mounting frame 12, and a rotating drive motor arranged on the mounting frame 12 and connected to the screw rod to drive the screw rod to rotate. The screw rod passes through the transmission seat and is connected to the transmission seat by a threaded transmission, so that when the screw rod rotates, the transmission seat can be controlled to drive the sliding frame 4 to slide on the mounting frame 12.

[0035] It is worth noting that in this embodiment, a base 16, a back cushion 17, a seat cushion 18, and an extension cushion 19 are also included. Specifically, the mounting frame 12 is fixedly arranged on the base 16 by bolts, the backrest frame 1 is fixedly arranged on one side of the base 16 by bolts, the back cushion 17 is fixedly arranged on the backrest frame 1 by bolts, the seat cushion 18 is fixedly arranged on the sliding frame 4, and the extension cushion 19 is arranged on the extension member 3; when it is necessary to control the sofa to extend, the user controls the sliding drive device to control the sliding frame 4 to slide on the mounting frame 12, and at this time the sliding frame 4 drives the transverse connecting rod 5 slides, the support rod 6 arranged on the transverse connecting rod 5 pulls the extension member 3 and one end of the extension pad 19 arranged on the extension member 3 to penetrate into the accommodating cavity 2. At this time, since one end of the second connecting rod is hinged to the lower end of the first connecting plate 9 through a pin shaft, and the other end is hinged to the second connecting plate 10 through a pin shaft, the movement stroke of the extension member 3 is limited, so that the extension member 3 gradually turns over around the hinge between the sliding frame 4 and the extension member 3, and finally turns over to a horizontal state when the sliding frame 4 slides to a predetermined position, the sofa is extended at this time, and the extension pad 19 is the extended part.

[0036] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A telescopic sofa, comprising a backrest frame (1), a receiving cavity (2) having an opening formed on the backrest frame (1), an extension member (3) movably arranged in the receiving cavity (2), and a sliding frame (4) slidably arranged on one side of the backrest frame (1) having an opening, characterized in that: A first connecting rod assembly is provided between the extension piece (3) and the sliding frame (4), and the first connecting rod assembly is used to pull one end of the extension piece (3) when the sliding frame (4) slides so that the extension piece (3) passes through the opening of the accommodating cavity (2). A second connecting rod assembly is provided between the extension piece (3) and the backrest frame (1), and the second connecting rod assembly is used to limit the extension piece (3) from gradually turning around the hinge between the sliding frame (4) and the extension piece (3) to a horizontal state when the sliding frame (4) drives the extension piece (3) to pass through the accommodating cavity (2).

2. A retractable sofa according to claim 1, characterized in that: The first connecting rod assembly comprises a transverse connecting rod (5) having a preset length and arranged on the sliding frame (4); a supporting rod (6) extending upward is arranged on the transverse connecting rod (5); and the upper end of the supporting rod (6) is hinged to the extension member (3).

3. A retractable sofa according to claim 2, characterized in that: At least one hinged plate (7) is fixedly provided on the lower end surface of the extension member (3) by means of bolts, and a hinged ear plate (8) is provided on the hinged plate (7) for hinged connection with the upper end of the support rod (6).

4. The retractable sofa according to claim 1, characterized in that: The second connecting rod assembly comprises a first connecting plate (9) arranged on the lower end surface of the extension member (3), a second connecting plate (10) arranged on the backrest frame (1), and a second connecting rod (11) having one end hinged to the first connecting plate (9) and the other end hinged to the second connecting plate (10).

5. The retractable sofa according to claim 2, characterized in that: It also includes a mounting frame (12) arranged on the side of the backrest frame (1) having an opening, and the sliding frame (4) can be slidably arranged on the mounting frame (12).

6. The retractable sofa according to claim 5, characterized in that: Slide grooves (13) are provided on both sides of the mounting frame (12), and rollers (14) for cooperating with the slide grooves (13) are provided on both sides of the sliding frame (4).

7. The retractable sofa according to claim 6, characterized in that: Mounting plates (15) are provided on both sides of the sliding frame (4), and each of the rollers (14) is rotatably arranged on the mounting plates (15) on both sides, and one end of the transverse connecting rod (5) is fixedly arranged on the mounting plates (15).

8. The retractable sofa according to claim 7, characterized in that: A sliding drive device is provided between the mounting frame (12) and the sliding frame (4).

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