Sofa bed folding mechanism and sofa bed

Abstract

The utility model relates to the field of sofa beds, and particularly discloses a sofa bed folding mechanism and a sofa bed. The supporting assembly comprises a bottom support, and a backrest frame is arranged on the upper side of the bottom support. The folding assembly comprises a mounting plate, a rotating adjusting part is clamped and embedded in the upper side of the mounting plate, a sliding frame is arranged on the rotating adjusting part in a sliding mode, and one end of the rotating adjusting part is further connected with an auxiliary supporting part in a limiting and sliding mode; according to the sofa bed folding mechanism disclosed by the utility model, a user can quickly convert a sofa into a bed or convert the sofa into a sofa state from a bed state through simple operation, so that the use convenience is greatly improved; when the bed state is converted into the bed state, the auxiliary supporting piece can turn over and abut against the ground, stable supporting is provided for the rotary adjusting piece, and the stability of the bed state is ensured; the backrest frame can move up and down along a preset track through the design of the rotary adjusting piece and the sliding frame.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of sofa bed, specifically a sofa bed folding mechanism and sofa bed. BACKGROUND

[0002] The sofa bed is a kind of multifunctional furniture, it combines the dual function of sofa and bed. Specifically, sofa bed can be used as sofa in daily life, provides comfortable seat;When needed, it can be converted into a bed by unfolding or deforming, to meet the needs of temporary accommodation.

[0003] Traditional sofa bed needs to disassemble sofa cushion first, moves backrest frame, then unfolds hidden bed frame, to be converted into bed form from sofa form, it has the problem of complicated conversion process, complex operation, greatly reduces the convenience of use. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a sofa bed folding mechanism to solve the problem that the conventional sofa bed in the prior art needs to disassemble sofa cushion first, moves backrest frame, then unfolds hidden bed frame, to be converted into bed form from sofa form, it has the problem of complicated conversion process, complex operation, greatly reduces the convenience of use.

[0005] A sofa bed folding mechanism, comprising a support assembly and a folding assembly;

[0006] The support assembly comprises a bottom support, and the upper side of the bottom support is provided with a backrest frame;

[0007] The folding assembly comprises a mounting plate, the upper side of the mounting plate is clamped with a rotating adjusting part, the rotating adjusting part is slidably provided with a sliding frame, and one end of the rotating adjusting part is also limitingly and slidably connected with an auxiliary support part;

[0008] The mounting plate is fixedly installed on one side of the bottom support by a screw rod, and the sliding frame is fixedly installed on one side of the backrest frame;

[0009] After the auxiliary support part is extracted from one end of the rotating adjusting part, the auxiliary support part supports the rotating adjusting part by rotating.

[0010] Preferably, the rotating adjusting part comprises a shaft rod frame and a connecting plate body, and the outer side of the connecting plate body is also fixedly connected with a fixed block;

[0011] The connecting plate body is rotatably clamped on the shaft rod frame, and the shaft rod frame is slidably clamped in the mounting plate;

[0012] The folding assembly further comprises a ball screw, and the ball screw is fixedly installed on the fixed block;

[0013] The ball screw drive sliding frame moves up and down along the connecting plate body with the backrest frame.

[0014] Preferably, the auxiliary support comprises an auxiliary support frame, one end of the auxiliary support frame is fixedly connected with a sliding rod, the other end of the auxiliary support frame is fixedly connected with a support handle, and the auxiliary support frame is clamped in the connecting plate body through the sliding rod.

[0015] The sofa bed further comprises a sofa bed support frame piece.

[0016] The sofa bed support frame piece comprises a sofa bed support frame body, both ends of the sofa bed support frame body are fixedly connected with side stops, and the lower end of the bottom support is provided with a group of positioning grooves.

[0017] The bottom support is clamped on the sofa bed support frame body through the group of positioning grooves and is fixed through bolts.

[0018] Preferably, the bottom of each side stop is fixedly provided with a heightening frame, and the bottom of the heightening frame is fixedly provided with a group of moving wheels.

[0019] Preferably, the auxiliary support is further provided with a positioning block.

[0020] The auxiliary support is clamped on the positioning block through the positioning clamping groove.

[0021] Compared with the prior art, the sofa bed folding mechanism has the following beneficial effects:

[0022] Through the sofa bed folding mechanism, a user can quickly convert a sofa into a bed or convert the bed into the sofa through simple operation, thereby greatly improving the convenience of use.

[0023] When converted into the bed state, the auxiliary support can be flipped and abutted on the ground, thereby providing stable support for the rotating adjusting piece and ensuring the stability of the bed state.

[0024] The design of the rotating adjusting piece and the sliding frame enables the backrest frame to move up and down along a predetermined track, thereby realizing smooth conversion between the sofa and the bed. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the sofa bed folding mechanism.

[0026] Figure 2 It is an exploded structure schematic view of the sofa bed folding mechanism.

[0027] Figure 3 It is an exploded structure schematic view of the sofa bed folding mechanism.

[0028] Figure 4 It is the working schematic view of the auxiliary support piece of the utility model;

[0029] Figure 5 It is the exploded structural schematic view of the folding assembly of the utility model;

[0030] Figure 6 It is the cross section schematic view of the mounting plate of the utility model;

[0031] Figure 7 It is the cross section schematic view of the rotating adjusting piece of the utility model;

[0032] Figure 8 It is the structural schematic view of the sofa bed support frame piece of the utility model.

[0033] In the drawing: 1, support assembly; 11, bottom support; 12, backrest frame; 2, folding assembly; 21, mounting plate; 22, rotating adjusting piece; 221, shaft rod frame; 222, connecting plate body; 223, fixed block; 23, sliding frame; 24, auxiliary support piece; 241, auxiliary support frame; 242, sliding rod; 243, support handle; 25, ball screw; 3, sofa bed support frame piece; 31, sofa bed support frame body; 32, side stop; 33, heightening frame; 34, moving wheel; 4, positioning block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] As shown in the drawing: Figures 1 to 4

[0036] Embodiment one: the utility model provides a sofa bed folding mechanism, including support assembly 1 and folding assembly 2;

[0037] Support assembly 1 includes bottom support 11, and the upper side of bottom support 11 is provided with backrest frame 12;

[0038] Among them, backrest frame 12 can be supported on the wall, to ensure that bottom support 11, backrest frame 12 can be combined into sofa state stably;

[0039] Backrest frame 12 can also be fixed on bottom support 11 by means of bolt, not shown in the drawing;

[0040] ​The folding assembly 2 includes a mounting plate 21, a rotation adjustment component 22 is fitted on the upper side of the mounting plate 21, a sliding frame 23 is slidably arranged on the rotation adjustment component 22, and an auxiliary support component 24 is also limited and slidably connected to one end of the rotation adjustment component 22.

[0041] Mounting plate 21 is fixedly installed on one side of base bracket 11 by screws, and sliding bracket 23 is fixedly installed on one side of backrest frame 12;

[0042] like Figure 4 As shown: After the auxiliary support member 24 is pulled out from one end of the rotating adjustment member 22, it supports the rotating adjustment member 22 by rotating.

[0043] During installation, the mounting plate 21 is fixedly installed on one side of the base bracket 11 by screws, and the sliding bracket 23 is fixedly installed on one side of the backrest frame 12. The backrest frame 12 is supported against the wall, thus forming a sofa.

[0044] When it is necessary to convert the sofa into a bed, the entire device is moved outward so that the backrest frame 12 is detached from the wall. Moving the backrest frame 12 upward can detach it from the base support 11. At the same time, the sliding frame 23 will move along the rotating adjustment member 22. When it reaches the limit position, flipping it allows the backrest frame 12 to switch to a flat position via the rotating adjustment member 22. Then, pushing the backrest frame 12 in the opposite direction moves it onto the base support 11, thus forming a bed. The auxiliary support member 24 is pulled out from one end of the rotating adjustment member 22. By rotating it, the auxiliary support member 24 flips over and rests against the ground, thereby supporting the rotating adjustment member 22.

[0045] like Figures 1 to 7 As shown:

[0046] Specifically, the rotating adjustment component 22 includes a shaft bracket 221 and a connecting plate body 222, and a fixing block 223 is fixedly connected to the outer side of the connecting plate body 222.

[0047] The connecting plate body 222 is rotatably engaged on the shaft bracket 221, and the shaft bracket 221 is slidably engaged in the mounting plate 21;

[0048] The folding assembly 2 also includes a ball screw 25, which is fixedly mounted on the fixing block 223;

[0049] The ball screw 25 drives the sliding frame 23 to move up and down along the connecting plate body 222, carrying the backrest frame 12.

[0050] Specifically, the auxiliary support component 24 includes an auxiliary support frame 241, one end of which is fixedly connected to a slide rod 242, and the other end of which is fixedly connected to a support handle 243. The auxiliary support frame 241 is limited and slidably embedded in the connecting plate body 222 by the slide rod 242.

[0051] As can be seen from the above, the mounting plate 21 is fixedly installed on one side of the bottom support 11 through a screw rod, the shaft rod holder 221 is positioned by being slidingly clamped in the mounting plate 21, and the connecting plate body 222 is rotationally clamped on the shaft rod holder 221 to facilitate the staff to adjust the shape of the sofa;

[0052] The control of the ball screw 25 enables the sliding frame 23 to move up and down along the connecting plate body 222 with the backrest frame 12, thereby facilitating the staff to control the movement of the backrest frame 12;

[0053] Pulling the support handle 243 enables the auxiliary support frame 241 to move the sliding rod 242, the sliding rod 242 plays a limiting role in the connecting plate body 222, and when the sliding rod 242 moves to the end position, rotating the support handle 243 enables the support handle 243 to be supported on the ground.

[0054] As shown in Figure 8

[0055] Embodiment two: a sofa bed comprising a sofa bed folding mechanism as described above, further comprising a sofa bed support frame piece 3;

[0056] The sofa bed support frame piece 3 comprises a sofa bed support frame body 31, both ends of the sofa bed support frame body 31 are fixedly connected with side stops 32, and the bottom support 11 is provided with a group of positioning grooves at the lower end.

[0057] The bottom support 11 is positioned and clamped on the sofa bed support frame body 31 through the group of positioning grooves and is fixed by bolts.

[0058] Specifically, the bottom of each side stop 32 is fixedly installed with a height-raising frame 33, and the bottom of the height-raising frame 33 is fixedly installed with a group of moving wheels 34.

[0059] Specifically, it further comprises a positioning block 4;

[0060] The auxiliary support piece 24 is provided with a positioning clamping groove, and the auxiliary support piece 24 is clamped on the positioning block 4 through the positioning clamping groove.

[0061] As can be seen from the above, the sofa bed support frame body 31 can conveniently clamp and fix the bottom support 11;

[0062] The group of moving wheels 34 installed at the bottom of the height-raising frame 33 can conveniently move the entire sofa bed;

[0063] The auxiliary support piece 24 is clamped on the positioning block 4 through the positioning clamping groove, thereby facilitating the support of the auxiliary support piece 24.

[0064] ​All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0065] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0069] The present application discloses embodiments in the drawings, only relate to the structure involved in the embodiments of the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other.

[0070] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sofa bed folding mechanism, characterized by, It comprises a support assembly (1) and a folding assembly (2); The support assembly (1) comprises a bottom support (11), and the upper side of the bottom support (11) is provided with a backrest support (12); The folding assembly (2) comprises a mounting plate (21), the upper side of the mounting plate (21) is clamped with a rotating adjusting part (22), the rotating adjusting part (22) is slidably provided with a sliding support (23), and one end of the rotating adjusting part (22) is also limitingly and slidably connected with an auxiliary support part (24); The mounting plate (21) is fixedly installed on one side of the bottom support (11) through a screw rod, and the sliding support (23) is fixedly installed on one side of the backrest support (12); After the auxiliary support part (24) is pulled out from one end of the rotating adjusting part (22), the auxiliary support part (24) supports the rotating adjusting part (22) by rotating.

2. The sofa bed folding mechanism of claim 1, wherein, The rotating adjusting part (22) comprises a shaft rod support (221) and a connecting plate body (222), and the outer side of the connecting plate body (222) is also fixedly connected with a fixed block (223); The connecting plate body (222) is rotatably clamped on the shaft rod support (221), and the shaft rod support (221) is slidably clamped in the mounting plate (21); The folding assembly (2) further comprises a ball screw (25), and the ball screw (25) is fixedly installed on the fixed block (223); The ball screw (25) drives the sliding support (23) to move up and down along the connecting plate body (222) with the backrest support (12).

3. The sofa bed folding mechanism of claim 1, wherein, The auxiliary support part (24) comprises an auxiliary support support (241), one end of the auxiliary support support (241) is fixedly connected with a sliding rod (242), the other end of the auxiliary support support (241) is fixedly connected with a support handle (243), and the auxiliary support support (241) is limitingly and slidably clamped in the connecting plate body (222) through the sliding rod (242).

4. A sofa bed, characterized in that The sofa bed folding mechanism comprises the sofa bed folding mechanism according to any one of claims 1-3, and further comprises a sofa bed support frame part (3); The sofa bed support frame part (3) comprises a sofa bed support frame body (31), both ends of the sofa bed support frame body (31) are fixedly connected with side stops (32), and the lower end of the bottom support (11) is provided with a group of positioning grooves; The bottom support (11) is limitingly clamped on the sofa bed support frame body (31) through the group of positioning grooves and is fixed by bolts.

5. The sofa bed of claim 4, wherein, The bottom of each side stop (32) is fixedly installed with a heightening support (33), and the bottom of the heightening support (33) is fixedly installed with a group of moving wheels (34).

6. The sofa bed of claim 5, wherein, It further comprises a positioning block (4); The auxiliary support part (24) is clamped on the positioning block (4) through a positioning clamping groove formed in the auxiliary support part (24).

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