Drawing type seat frame limiting structure and sofa bed comprising limiting structure

Abstract

The utility model discloses a drawing type seat frame limiting structure and a sofa bed comprising the same, the drawing type seat frame limiting structure comprises a seat frame and a limiting piece, the seat frame is provided with a movable sliding frame in a drawing mode, the two sides of the rear end of the sliding frame are provided with limiting blocks with limiting bayonets, the limiting piece is used for limiting the limiting position where the sliding frame is drawn outwards, and the limiting piece is used for limiting the limiting position where the sliding frame is drawn outwards. The sofa bed comprises armrests, a backrest, a sofa frame and the drawing type seat frame limiting structure, the backrest is connected with the armrests or the sofa frame or the seat frame, the two ends of the seat frame are connected with the armrests or the sofa frame, the limiting structure is designed in a hidden mode, and the limiting structure can be used for limiting the sofa frame. Attractiveness is improved, and flatness of the surface of the carriage is not affected.

Description

Technical Field

[0001] This utility model belongs to the technical field of furniture, and in particular relates to a pull-out seat frame limiting structure and a sofa bed containing the limiting structure. Background Technology

[0002] A sofa is a piece of furniture for people to rest, mainly consisting of a seat frame, backrest, and armrests. Traditional sofas were only used for sitting and resting. With the development of the furniture industry, sofa beds were designed, which combine the functions of a sofa and a bed, allowing people to sit or lie down to rest. Chinese Patent Publication No. CN212729309U discloses a push-pull storage sofa bed, including a sofa base. A fixed support frame is fixedly connected to the middle of the sofa base. Guide grooves are opened on both sides of the inner wall of the sofa base near the fixed support frame. A connecting rod is slidably connected to the inner wall of the guide groove. Sliding support frames are fixedly connected to both sides of the connecting rod. Limiting baffles are fixedly connected to both sides of the top surface of the fixed support frame. The position of the limiting baffles corresponds to the position of the connecting rod. The thickness of the limiting baffles is greater than the diameter of the connecting rod, so that the limiting baffles can block the connecting rod and prevent the sliding support frames from detaching from the fixed support frame. The structure of the sliding support frame and the fixed support frame and their sliding connection structure are relatively complex. The limiting baffles are external to the connecting rods, which affects the aesthetics. Also, the thickness of the limiting baffles is greater than the diameter of the connecting rods, which will create a certain height difference and affect the comfort of the sofa bed when sitting. Utility Model Content

[0003] The purpose of this utility model is to solve at least one problem of the prior art by proposing a pull-out seat frame limiting structure and a sofa bed containing the limiting structure.

[0004] To achieve the above objectives, this utility model proposes a pull-out seat frame limiting structure, including a seat frame and limiting components. The seat frame is pull-out and has a movable slide. The rear ends of the slide are provided with limiting blocks with limiting slots on both sides. The limiting components are used to limit the extreme position of the slide when it is pulled outward. When the slide is pulled outward to a certain position, the limiting components are engaged with the limiting slots of the limiting blocks.

[0005] As an optional implementation, the seat frame is composed of a crossbeam and a support member, with both ends of the crossbeam detachably connected to the armrests or sofa frame.

[0006] As an optional implementation, the number of crossbeams is two and they are arranged in parallel to each other. The two ends of the crossbeams are provided with connectors, and the armrests and sofa frames are provided with connectors for use in connecting them.

[0007] As an optional implementation, the support member is a reinforcing rod, a supporting elastic member, or Teslin fabric.

[0008] As an optional implementation, the limiting member is a limiting post or bolt, and the limiting member is installed on the armrest or sofa frame.

[0009] As an optional implementation, the rear end of the carriage is provided with a square tube, and both ends of the square tube are detachably connected to the limiting block.

[0010] As an optional implementation, the bottom of the carriage is provided with rollers.

[0011] As an optional implementation, the seat frame has a cavity for accommodating the carriage, the seat frame is provided with a slide rail, and rollers are provided on both sides of the carriage. The rollers are fitted on the slide rail and move linearly along the slide rail.

[0012] As an optional implementation, the seat frame is provided with a protective shell, and the protective shell is provided with a zipper structure, button structure, Velcro structure or folding structure for the slide to be pulled out at the position of the slide.

[0013] This utility model also proposes a sofa bed, which includes armrests, a backrest, a sofa frame, and the aforementioned pull-out seat frame limiting structure. The backrest is connected to the armrests, the sofa frame, or the seat frame, and both ends of the seat frame are connected to the armrests or the sofa frame.

[0014] The beneficial effects of this utility model are as follows: By setting limiting blocks with limiting slots on both sides of the rear end of the slide, and setting limiting components inside the seat frame, the limiting components can be locked into the limiting slots of the limiting blocks when the slide is pulled outward to a certain position. This allows the limiting structure of the slide to be hidden, improving aesthetics and not affecting the flatness of the slide surface. The seat frame is equipped with a pull-out movable slide, and the two structures are simple and easy to manufacture.

[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a partial schematic diagram of an embodiment of the present utility model.

[0018] Figure 3 This is a partial schematic diagram of an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the sofa bed disassembled according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the support and connector of an embodiment of the present utility model.

[0021] Figure 6This is a schematic diagram of the limiting block according to an embodiment of the present utility model.

[0022] In the diagram: 1. Seat frame; 2. Carriage; 3. Limiting component; 4. Limiting block; 5. Sofa frame; 6. Armrest; 7. Backrest; 8. Supporting component; 11. Connector; 12. Support component; 41. Limiting slot. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. In the description of this application, it should be noted that the terms "inner," "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] See Figures 1 to 6 This embodiment provides a pull-out seat frame limiting structure, including a seat frame 1 and a limiting member 3. The seat frame 1 is pull-out mounted with a movable slide 2. The rear ends of the slide 2 are provided with limiting blocks 4 with limiting slots 41 on both sides. The limiting member 3 is used to limit the extreme position of the slide 2 when it is pulled outward. When the slide 2 is pulled outward to a certain position, the limiting member 3 is engaged with the limiting slots 41 of the limiting block 4.

[0027] In use, the top of the slide 2 is equipped with a support base, which is connected to the slide 2 by a folding linkage mechanism. This folding linkage mechanism is an existing structure that can be unfolded or folded to raise or lower the support base. For easy pulling, the support base is equipped with a pull ring. The seat frame 1 can be a cuboid frame structure or composed of multiple parallel beams. When the slide 2 is pulled outwards, the support base rises to a position flush with the upper surface of the seat frame 1, at which point the limiting member 3 engages with the limiting slot 41 of the limiting block 4, allowing it to be used as a bed. When the slide 2 needs to be pushed inwards into the seat frame 1, the folding linkage mechanism folds and retracts, causing the support base to descend and push the slide 2 inwards. The limiting member 3 disengages from the limiting slot 41 of the limiting block 4, allowing the slide 2 to be fully pushed into the seat frame 1. To improve the support strength of the support base, a rotating folding bracket can also be installed in the seat frame to support the raised support base.

[0028] In this embodiment, see Figures 1 to 4 The seat frame 1 is composed of a crossbeam and a support member 12. The two ends of the crossbeam are detachably connected to the armrest 6 or the sofa frame 5.

[0029] In use, the number of crossbeams can be set according to needs, such as 2, 3, or 4. The more crossbeams there are, the stronger the support of the seat frame. To maintain the flatness of the upper surface of the seat frame, the crossbeams are arranged in parallel. Users can choose to connect both ends of the crossbeams to the two armrests, or connect both ends of the crossbeams to the armrests 6 and the sofa frame 5 respectively, or connect both ends of the crossbeams to the two sofa frames 5 respectively.

[0030] In this embodiment, refer to Figure 4 and Figure 5 There are two parallel crossbeams, each with a connector 11 at both ends. The armrests 6 and sofa frame 5 are equipped with connectors 8 for engaging with the connectors 11. Both the connectors 8 and 11 have fastening holes for screws or pins. The connector 8 is a socket with a groove that is wider at the top and narrower at the bottom, while the connector 11 is a plate that is wider at the top and narrower at the bottom. The plate engages with the groove on the socket, making it easy to assemble and disassemble the connectors 8 and 11, and ensuring a secure connection. Alternatively, the ends of the crossbeams can be connected to the armrests 6 or sofa frame 5 using mortise and tenon joints or screws, depending on the need for detachable installation.

[0031] Furthermore, the support member 12 is a reinforcing rod or a supporting elastic member or Teslin fabric.

[0032] In this embodiment, refer to Figures 1 to 3 The limiting component 3 is a limiting post or bolt, and can be installed on the armrest 6 or the sofa frame 5. When the seat frame 1 is a cuboid frame structure, the limiting component 3 can also be set on the inner wall of the seat frame 1.

[0033] In this embodiment, refer to Figure 3 and Figure 6 The rear end of the carriage 2 is provided with a square tube, and the two ends of the square tube are detachably connected to the limiting block 4 by means of plug-in or screw connection.

[0034] In this embodiment, the bottom of the carriage 2 is provided with rollers to facilitate the movement of the carriage 2.

[0035] In this embodiment, the seat frame 1 has a cavity for accommodating the slide 2. The seat frame 1 is provided with a slide rail, and rollers are provided on both sides of the slide. The rollers are installed on the slide rail and move linearly along the slide rail.

[0036] In this embodiment, the seat frame 1 is provided with a protective shell. The protective shell is provided with a zipper structure, button structure, Velcro structure or folding structure for the slide 2 to be pulled out at the position of the protective shell relative to the slide 2. The protective shell improves the aesthetics while providing a certain degree of protection. The material of the protective shell includes, but is not limited to, imitation leather, genuine leather or velvet.

[0037] See Figures 1 to 6 This utility model also proposes a sofa bed, which includes armrests 6, backrests 7, sofa frames 5 and the above-mentioned pull-out seat frame limiting structure. The backrests 7 are connected to the armrests 6 or sofa frames 5 or seat frames 1, and the two ends of the seat frames 1 are connected to the armrests 6 or sofa frames 5.

[0038] The number of sofa frames 5 can be set according to the user's requirements for sofa bed size and seating. The number of sofa frames 5 includes, but is not limited to, 1, 2, 3 or 4. To improve the comfort of the sofa bed, elastic cushions can also be placed on the backrest, seat frame and sofa frame. The backrest can be set as an integrated structure or as a split splicing structure, that is, the backrest and each seat frame and sofa frame are connected accordingly.

[0039] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A pull-out seat frame limiting structure, characterized in that: The device includes a seat frame and a limiting component. The seat frame is equipped with a movable slide in a pull-out manner. The slide has limiting blocks with limiting slots on both sides of its rear end. The limiting component is used to limit the extreme position of the slide when it is pulled outward. When the slide is pulled outward to a certain position, the limiting component is engaged with the limiting slot of the limiting block.

2. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The seat frame is composed of a crossbeam and supporting members, and the two ends of the crossbeam are detachably connected to the armrests or sofa frame.

3. The pull-out seat frame limiting structure as described in claim 2, characterized in that: The number of crossbeams is two and they are arranged parallel to each other. The two ends of the crossbeams are provided with connectors, and the armrests and sofa frames are provided with connectors for use in connecting them.

4. The pull-out seat frame limiting structure as described in claim 2, characterized in that: The support component is a reinforcing rod, a supporting elastic component, or Teslin fabric.

5. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The limiting component is a limiting post or bolt, and the limiting component is installed on the armrest or sofa frame.

6. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The rear end of the carriage is provided with a square tube, and both ends of the square tube are detachably connected to the limiting block.

7. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The bottom of the carriage is equipped with rollers.

8. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The seat frame has a cavity for accommodating the carriage, and the seat frame is provided with a slide rail. Rollers are provided on both sides of the carriage, and the rollers are installed on the slide rail and move linearly along the slide rail.

9. The pull-out seat frame limiting structure as described in claim 1, characterized in that: The seat frame is provided with a protective shell, and the protective shell is provided with a zipper structure, button structure, Velcro structure or folding structure for the slide to be pulled out at the position of the slide.

10. A sofa bed, characterized in that: The sofa bed includes armrests, a backrest, a sofa frame, and a pull-out seat frame limiting structure as described in any one of claims 1 to 9. The backrest is connected to the armrests, the sofa frame, or the seat frame, and both ends of the seat frame are connected to the armrests or the sofa frame.

Images