A sofa bearing structure and a sofa turnover mechanism

Abstract

The utility model relates to a sofa bearing structure and sofa turnover mechanism, including sofa base pad, the top of sofa base pad is provided with sofa extension pad, the opposite both sides of sofa base are fixedly connected with armrest pad, the side fixedly connected with backrest pad of sofa base pad has the leg guard air bag away from backrest pad, the utility model relates to the technical field of sofa bearing structure. This sofa bearing structure and sofa turnover mechanism, when the sofa is developed into the sofa bed, it can support the sofa extension pad developed, avoid its friction and scratch with ground, thereby increase its loss and reduce the service life of sofa extension pad, and need not manual control, when the sofa extension pad is taken out, can automatic support, reduced the use step.

Description

Technical Field

[0001] This utility model relates to the technical field of sofa support structure, and in particular to a sofa support structure and a sofa flipping mechanism. Background Technology

[0002] There are many types of sofas. Some sofas have a single frame with filling and outer cover, while others have a separate frame with filling. Generally, separate sofas are mainly used for other functions, such as folding and unfolding.

[0003] In the existing technology, some sofas utilize a collapsible structure, allowing the sofa cushions to extend and become a sofa bed, so that people can lie down and sleep directly on it. Generally, the collapsible structure of sofa cushions is divided into sliding type and flipping type. Flipping sofa cushions are further divided into manual flipping and electric flipping, with manual flipping sofa cushions generally being more commonly used.

[0004] After a sofa cushion is flipped over, the side that was originally facing down will be facing down, which can easily cause it to rub against the ground, thus increasing wear and tear and reducing the lifespan of the sofa cushion. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sofa support structure and a sofa flipping mechanism, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A sofa support structure includes a sofa base pad, a sofa extension pad on the top of the sofa base pad, armrest pads fixedly connected to two opposite sides of the sofa base, a backrest pad fixedly connected to a side of the sofa base pad, a leg support airbag fixedly connected to the side of the sofa extension pad away from the backrest pad, and a support member on the top of the side of the sofa extension pad close to the backrest pad.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the support member includes two mounting grooves, which are located at two corners of the sofa extension cushion near the backrest cushion. A circular hole is provided on the bottom side wall of the mounting groove, and a support rod is slidably connected in the circular hole. A foot pad is fixedly connected to the top of the support rod.

[0009] In a preferred embodiment, the present invention can be further configured such that: a circular groove is provided inside the side wall of the sofa extension pad, the two ends of the circular groove are respectively connected to a circular hole and a leg airbag, and a limiting spring is fixedly connected between the foot pad and the bottom side wall of the mounting groove.

[0010] In a preferred embodiment, the present invention can be further configured such that: a reinforcing rib is fixedly connected between the two bearing rods, and a clearance groove for avoiding the reinforcing rib is provided on the side of the sofa extension pad near the backrest.

[0011] A sofa flipping mechanism includes a sofa support structure and two side grooves. The two side grooves are respectively opened on one side of two armrest pads near the sofa extension pad. A positioning shaft is fixed on the side of the sofa base pad and at the position of the side groove. The sofa base pad is rotatably connected to the corresponding positioning shaft. A docking plate is fixedly connected to the end of the positioning shaft. The end of the docking plate is fixedly connected to the side of the sofa extension pad.

[0012] In a preferred embodiment, the present invention can be further configured such that: a reinforcing magnetic block is fixedly connected to the inner side wall of the leg airbag, and an inlay groove for inlaying the reinforcing magnetic block is opened on the side of the sofa base pad, wherein the thickness of the sofa extension pad is less than the thickness of the sofa base pad.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. This sofa support structure can support the unfolded sofa cushion when the sofa is unfolded into a sofa bed, preventing it from rubbing and scratching against the ground, thus avoiding increased wear and tear and reducing the service life of the sofa cushion. Moreover, it can automatically support the sofa cushion when it is removed without manual operation, reducing the number of steps required for use.

[0015] 2. The sofa support structure includes a limiting spring to prevent the support rod from being directly squeezed out by the foot pads after the leg airbags are squeezed by the legs during normal use of the sofa, which could easily come into contact with the user's back and affect the user's use.

[0016] 3. In this sofa flipping mechanism, when the entire sofa extension pad is pulled to rotate, the sofa extension pad rotates with the positioning shaft as the fulcrum and follows the docking plate. When the sofa extension pad rotates, it will drive the leg support airbag to rotate as well, so that the leg support airbag can contact and be squeezed with the bottom edge of the sofa base pad, so as to support the sofa extension pad.

[0017] 4. In this sofa flipping mechanism, a reinforcing magnetic block is fixedly connected to the side of the leg airbag, and the position of the reinforcing magnetic block corresponds to the inlay groove of the sofa base pad. After the leg airbag is compressed, the reinforcing magnetic block can enter the inlay groove. A magnet that can attract the fixed magnetic block is fixedly connected in the inlay groove, thereby improving the stability of the sofa extension pad after it is extended. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the sand spreading mat structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the load-bearing structure of this utility model.

[0022] Figure 4 For the present utility model Figure 3 Left side structural diagram.

[0023] Figure 5 This is a schematic diagram of the internal structure of the leg airbag of this utility model.

[0024] In the diagram, 1. Sofa base pad; 2. Sofa extension pad; 3. Armrest pad; 4. Backrest pad; 5. Leg support airbag; 6. Bearing component; 7. Mounting groove; 8. Round hole; 9. Bearing rod; 10. Foot pad; 11. Round groove; 12. Limiting spring; 13. Reinforcing rib; 14. Clearance groove; 15. Side groove; 16. Positioning shaft; 17. Connecting plate; 18. Reinforcing magnet; 19. Inlay groove. Detailed Implementation

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

[0026] Example:

[0027] Reference Figures 1-4 The present invention discloses a sofa support structure, including a sofa base pad 1, a sofa extension pad 2 on the top of the sofa base pad 1, armrest pads 3 fixedly connected to two opposite sides of the sofa base, a backrest pad 4 fixedly connected to the side of the sofa base pad 1, a leg support airbag 5 fixedly connected to the side of the sofa extension pad 2 away from the backrest pad 4, and a support member 6 on the top of the side of the sofa extension pad 2 close to the backrest pad 4.

[0028] In this embodiment, reference Figure 1When in use, the sofa extension pad 2 is located on top of the sofa base pad 1 and is used as a normal sofa pad. When it needs to be extended into a sofa bed, the sofa extension pad 2 is lifted up from the side near the backrest pad 4, and then the leg support airbag 5 is pressed against the side of the sofa base pad 1. After the leg support airbag 5 is compressed, the internal air is injected into the support member 6, thereby driving the support member 6 to support the sofa extension pad 2, so that the side in use does not come into contact with the ground and rub against it, thereby increasing its wear and reducing its service life.

[0029] In a further preferred embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the support member 6 includes two mounting grooves 7, which are opened at two corners of the sofa extension pad 2 near the backrest pad 4. The bottom side wall of the mounting groove 7 is provided with a round hole 8, and a support rod 9 is slidably connected in the round hole 8. A foot pad 10 is fixedly connected to the top of the support rod 9.

[0030] The sofa extension cushion 2 has a circular groove 11 inside its side wall. The two ends of the circular groove 11 are connected to the circular hole 8 and the leg airbag 5, respectively. A limiting spring 12 is fixedly connected between the foot pad 10 and the bottom side wall of the mounting groove 7.

[0031] In this embodiment, combined with Figure 2 ,refer to Figure 3 and Figure 4 After the sofa extension cushion 2 is flipped over, it will cause the leg support airbag 5 to come into contact with the bottom edge of the sofa cushion. The bottom of the sofa cushion has a support frame, which can compress the leg support airbag 5. The air in the leg support airbag 5 will enter the round groove 11 and then be transported to the round hole 8, which will increase the air pressure in the round hole 8. This air pressure will push the support rod 9 to slide outward, and finally make the foot pad 10 contact the ground, supporting the sofa extension cushion 2 and preventing the sofa extension cushion 2 from contacting the ground, which would increase wear and tear and reduce its service life.

[0032] The limiting spring 12 is designed to prevent the leg airbag 5 from being squeezed by the legs during normal use of the sofa, which would cause the support rod 9 to be squeezed out and the foot pad 10 to easily come into contact with the user's back, thus affecting the user's use.

[0033] Example 2:

[0034] Reference Figure 2 and Figure 4The present invention discloses a sofa flipping mechanism, including a sofa support structure and two side grooves 15. The two side grooves 15 are respectively opened on the side of the two armrest pads 3 near the sofa extension pad. A positioning shaft 16 is fixed on the side of the sofa base pad 1 at the position of the side groove 15. The sofa base pad 1 is rotatably connected to the corresponding positioning shaft 16. A docking plate 17 is fixedly connected to the end of the positioning shaft 16. The end of the docking plate 17 is fixedly connected to the side of the sofa extension pad 2.

[0035] In this embodiment, reference Figure 2 and Figure 4 When the entire sofa extension pad 2 is pulled to rotate, the sofa extension pad 2 rotates with the positioning shaft 16 as the fulcrum and follows the docking plate 17. When the sofa extension pad 2 rotates, it will drive the leg support airbag 5 to rotate as well, so that the leg support airbag 5 can contact the bottom edge of the sofa base pad 1 and be squeezed, so as to support the sofa extension pad 2.

[0036] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, a reinforcing magnetic block 18 is fixedly connected to the inner side wall of the leg airbag 5, and an inlay groove 19 for inlaying the reinforcing magnetic block 18 is opened on the side of the sofa base pad 1, wherein the thickness of the sofa extension pad 2 is less than the thickness of the sofa base pad 1.

[0037] In this embodiment, please also refer to Figure 4 and Figure 5 A reinforcing magnetic block 18 is fixedly connected to the side of the leg airbag 5, and the reinforcing magnetic block 18 is aligned with the inlay groove 19 of the sofa base pad 1. After the leg airbag 5 is compressed, the reinforcing magnetic block 18 can enter the inlay groove 19. A magnet that can attract the fixed magnetic block is fixedly connected in the inlay groove 19, thereby improving the stability of the sofa extension pad 2 after it is extended.

[0038] The implementation principle of the above embodiment is as follows: When in use, the sofa extension pad 2 is located on top of the sofa base pad 1 and is used as a normal sofa pad. When it is necessary to extend it into a sofa bed, the sofa extension pad 2 is lifted up from the side near the backrest pad 4, and then the leg support airbag 5 is pressed against the side of the sofa base pad 1, so that the internal air of the leg support airbag 5 is injected into the support member 6 after being squeezed.

[0039] The air in the leg airbag 5 will enter the round groove 11 and then be delivered to the round hole 8, which will increase the air pressure in the round hole 8. This will cause the air pressure to push the support rod 9 to slide outward, and finally make the foot pad 10 contact the ground to support the sofa extension pad 2. This will prevent the sofa extension pad 2 from contacting the ground, which would increase wear and tear and reduce its service life.

[0040] When the entire sofa extension pad 2 is pulled to rotate, the sofa extension pad 2 rotates with the positioning shaft 16 as the fulcrum and follows the docking plate 17. When the sofa extension pad 2 rotates, it will drive the leg support airbag 5 to rotate as well, so that the leg support airbag 5 can contact the bottom edge of the sofa base pad 1 and be squeezed, so as to support the sofa extension pad 2.

[0041] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sofa support structure, comprising a sofa base pad (1), characterized in that, The sofa base pad (1) is provided with a sofa extension pad (2) on top. Armrest pads (3) are fixedly connected to the two opposite sides of the sofa base. Backrest pads (4) are fixedly connected to the sides of the sofa base pad (1). Leg airbags (5) are fixedly connected to the side of the sofa extension pad (2) away from the backrest pad (4). A support member (6) is provided on the top of the side of the sofa extension pad (2) close to the backrest pad (4).

2. A sofa bearing structure according to claim 1, wherein The support component (6) includes two mounting slots (7). The two mounting slots (7) are located at two corners of the sofa extension cushion (2) near the backrest cushion (4). A round hole (8) is provided on the bottom side wall of the mounting slot (7). A support rod (9) is slidably connected in the round hole (8). A foot pad (10) is fixedly connected to the top of the support rod (9).

3. A sofa bearing structure according to claim 2, wherein The side wall of the sofa extension pad (2) has a circular groove (11) inside. The two ends of the circular groove (11) are connected to the circular hole (8) and the leg airbag (5) respectively. A limiting spring (12) is fixedly connected between the foot pad (10) and the bottom side wall of the mounting groove (7).

4. A sofa bearing structure according to claim 3, wherein A reinforcing rib (13) is fixedly connected between the two bearing rods (9), and a clearance groove (14) is provided on the side of the sofa extension pad (2) near the backrest pad (4) to avoid the reinforcing rib (13).

5. A sofa flip mechanism, characterized in that, The sofa includes a sofa support structure as described in any one of claims 1 to 4, and further includes two side grooves (15), which are respectively opened on the side of the two armrest pads (3) near the sofa extension pad. A positioning shaft (16) is fixed on the side of the sofa base pad (1) and located at the position of the side groove (15). The sofa base pad (1) is rotatably connected to the corresponding positioning shaft (16). A docking plate (17) is fixedly connected to the end of the positioning shaft (16). The end of the docking plate (17) is fixedly connected to the side of the sofa extension pad (2).

6. A sofa tipper mechanism according to claim 5, wherein The inner side wall of the leg airbag (5) is fixedly connected with a reinforcing magnetic block (18), and the side of the sofa base pad (1) is provided with an inlay groove (19) for inlaying the reinforcing magnetic block (18), wherein the thickness of the sofa extension pad (2) is less than the thickness of the sofa base pad (1).

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