Combined sofa bed
By designing the support frame and limiting components of the modular sofa bed, the problems of complex structure and poor stability of existing sofa beds are solved, realizing a simple and stable form conversion, suitable for the multifunctional needs of modern homes and hotel rooms.
Patent Information
- Application Number
- CN202520620647.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing sofa beds have complex structures, the process of converting between bed and sofa forms is cumbersome, and their stability after conversion is poor, which hinders their widespread adoption.
A modular sofa bed was designed. Through the combination of a support frame, adjustment blocks, square frame, connecting blocks, pivot, and limiting components, it achieves simple and stable form transformation. The stability of the sofa form is ensured by the cooperation of rollers and limiting plates.
It enables easy conversion between sofa bed and bed modes, improves stability after conversion, reduces floor space, enhances overall load-bearing capacity, and protects the wall from damage.
Smart Images

Figure CN223873611U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sofa bed technical field especially relates to a combined sofa bed. BACKGROUND
[0002] Modern room layout advocates simplicity, and multifunctional furniture is becoming the choice of the public, and sofa bed is one of them. In a small-sized room, a sofa bed is necessary to meet the occasional needs of visitors, especially in the application of hotel rooms, the flexible switching of single bed and double bed configuration is important for hotel operation.
[0003] However, the existing sofa bed structure is relatively complex, the bed form and sofa form conversion process is relatively cumbersome, and the stability after conversion is poor, which is not conducive to promotion. UTILITY MODEL CONTENT
[0004] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research, and after a lot of creative labor, the utility model is completed.
[0005] Specifically, the technical problem to be solved by the utility model is to provide a combined sofa bed to solve the technical problem that the existing sofa bed structure is relatively complex, the bed form and sofa form conversion process is relatively cumbersome, and the stability after conversion is poor, which is not conducive to promotion.
[0006] To solve the above technical problems, the utility model provides the following technical scheme:
[0007] A combined sofa bed, comprising a support frame, an adjusting block is arranged on the inner wall of the upper end of the support frame, a first square frame is connected to the upper end of the adjusting block, two groups of link blocks are symmetrically arranged on the lower end of the side of the first square frame away from the adjusting block, a connecting pin is arranged in the middle of the link block, a second square frame is connected to the upper end of the connecting pin, two groups of fixed blocks are symmetrically arranged on the outer wall of the side of the second square frame away from the connecting pin, a rotating shaft is arranged in the middle of the fixed block, a third square frame is connected to one end of the rotating shaft, an adjusting frame is connected to the lower end of the third square frame, rollers are connected to the lower end of the adjusting frame, a limiting assembly is arranged in the middle of the bottom end of the support frame, and a plug-in board is arranged in the middle of the bottom end of the adjusting frame.
[0008] As an improved technical scheme, a tripod is fixedly arranged on one side of the lower end of the support frame, and a rubber pad is fixedly arranged on the outer wall of the end of the tripod away from the support frame.
[0009] As an improved technical scheme, the lower end of the adjusting block is fixedly connected with the upper end of the support frame, the upper end of the adjusting block is rotatably connected with the inner wall of the first square frame, the outer wall of the lower end of the connecting pin is rotatably connected with the inner wall of the link block, and the outer wall of the rotating shaft is rotatably connected with the inner wall of the fixed block.
[0010] As an improved technical solution, the first square frame, the second square frame and the third direction frame are fixedly provided with a plurality of groups of reinforcing frames.
[0011] As an improved technical solution, the adjusting frame is provided with two groups of fixed plates which are symmetric to each other at the bottom end, the fixed plates are threadedly connected with adjusting bolts at the middle end, and the support frame and the adjusting bolts are fixedly provided with anti-skid blocks at the bottom end and the lower end, respectively.
[0012] As an improved technical solution, the limiting assembly comprises a connecting plate fixedly arranged at the middle part of the bottom end of the support frame, a rotating rod rotatably connected with the connecting plate at the upper end, and a limiting plate fixedly arranged at the end of the rotating rod away from the connecting plate, and the connecting plate is fixedly provided with a plug rod at the outer wall of the lower end of the limiting plate.
[0013] As an improved technical solution, the plug rod is movably arranged through the plug plate, and the plug plate is provided with a plug hole matched with the plug rod at the middle end.
[0014] As an improved technical solution, the distance between the end faces of the limiting plate and the connecting plate close to each other is equal to the width of the plug plate.
[0015] After the above technical solution is adopted, the beneficial effects of the present application are as follows:
[0016] When it is needed to change the device from a bed to a sofa, the third direction frame is pushed inward until the second square frame and the first square frame are parallel to each other and in a vertical state, and the second square frame and the first square frame cooperate with the third direction frame to form an L-shaped structure, at this time, the device is changed from a bed to a seat, at this time, the plug plate is located between the connecting plate and the limiting plate, at this time, the adjusting frame cannot be pushed outward, and the device always maintains a sofa shape, and after conversion, the stability is high, and the adjusting mode is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained on the basis of these drawings without creative labor. Among them:
[0018] Figure 1 It is a whole front view of the combined sofa bed of the present application;
[0019] Figure 2 It is a support frame and a first square frame of the combined sofa bed of the present application;
[0020] Figure 3Part of the three-dimensional structure schematic diagram of the combined sofa bed of the utility model;
[0021] Figure 4 The three-dimensional structure schematic diagram of the limiting assembly of the combined sofa bed of the utility model.
[0022] In the drawing: 1, support frame; 2, tripod; 3, adjusting block; 4, first square frame; 5, link block; 6, connecting pin; 7, second square frame; 8, fixed block; 9, rotating shaft; 10, third direction frame; 11, reinforcing frame; 12, adjusting frame; 13, roller; 14, fixed plate; 15, adjusting bolt; 16, limiting assembly; 161, connecting plate; 162, rotating rod; 163, limiting plate; 164, inserting rod; 17, inserting plate; 18, antiskid block; 19, rubber pad. DETAILED DESCRIPTION
[0023] 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 scope of protection of the utility model.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.
[0025] Meanwhile, "and / or" or "the or" appearing in the whole text means that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.
[0026] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0027] For example, Figures 1-4As shown in the drawings, the embodiment provides a combined sofa bed, which comprises a support frame 1, an adjusting block 3 is arranged on the inner wall of the upper end of the support frame 1, a first square frame 4 is connected to the upper end of the adjusting block 3, two groups of link blocks 5 which are symmetrical to each other are arranged on the lower end of the side of the first square frame 4 away from the adjusting block 3, a connecting pin 6 is arranged on the middle end of the link block 5, a second square frame 7 is connected to the upper end of the connecting pin 6, two groups of fixing blocks 8 which are symmetrical to each other are arranged on the outer wall of the side of the second square frame 7 away from the connecting pin 6, a rotating shaft 9 is arranged on the middle end of the fixing block 8, a third square frame 10 is connected to one end of the rotating shaft 9, an adjusting frame 12 is connected to the lower end of the third square frame 10, four rollers 13 are connected to the lower end of the adjusting frame 12, a limiting assembly 16 is arranged on the middle part of the bottom end of the support frame 1, and a plug plate 17 is arranged on the middle part of the bottom end of the adjusting frame 12.
[0028] A triangular frame 2 is fixedly arranged on one side of the lower end of the support frame 1, and a rubber pad 19 is fixedly arranged on the outer wall of the end of the triangular frame 2 away from the support frame 1.
[0029] The lower end of the adjusting block 3 is fixedly connected to the upper end of the support frame 1, the upper end of the adjusting block 3 is rotationally connected to the inner wall of the first square frame 4, the outer wall of the lower end of the connecting pin 6 is rotationally connected to the inner wall of the link block 5, and the outer wall of the rotating shaft 9 is rotationally connected to the inner wall of the fixing block 8.
[0030] A plurality of groups of reinforcing frames 11 are fixedly arranged on the middle ends of the first square frame 4, the second square frame 7 and the third square frame 10.
[0031] The bottom end of the adjusting frame 12 is provided with two groups of fixing plates 14 which are symmetrical to each other, the adjusting bolt 15 is threadedly inserted into the middle end of the fixing plate 14, and the anti-skid blocks 18 are fixedly arranged on the lower end of the adjusting bolt 15 and the four corners of the bottom end of the support frame 1.
[0032] The limiting assembly 16 comprises a connecting plate 161 fixedly arranged on the middle part of the bottom end of the support frame 1, the rotating rod 162 is rotationally connected to the upper end of the connecting plate 161, the limiting plate 163 is fixedly arranged on the end of the rotating rod 162 away from the connecting plate 161, and the plug rod 164 is fixedly arranged on the outer wall of the lower end of the limiting plate 163.
[0033] The plug rod 164 is movably inserted into the plug plate 17, and the plug hole which is matched with the plug rod 164 is arranged on the middle end of the plug plate 17.
[0034] The distance between the end faces of the limiting plate 163 and the connecting plate 161 which are close to each other is equal to the width of the plug plate 17.
[0035] When it is needed to change the device from bed to sofa, the third direction frame 10 can be pushed inward along the direction of the roller 13, at this time the first square frame 4 rotates upward along the upper end of the adjusting block 3, the second square frame 7 rotates a certain angle clockwise around the fixed block 8 away from one end of the first square frame 4, at this time the second square frame 7 and the first square frame 4 rotate around the connecting pin 6 at the end close to each other, and the second square frame 7 and the first square frame 4 are close to each other, until the second square frame 7 and the first square frame 4 are parallel to each other and in a vertical state, the second square frame 7 and the first square frame 4 cooperate with the third direction frame 10 to form an L-shaped structure, at this time the device changes from bed to seat, the area occupied is reduced, and the sofa cushion can be placed to change into a sofa, in the process of moving the adjusting frame 12 towards the inside of the support frame 1, the plug rod 164 gradually penetrates through the plug plate 17, the limiting plate 163 is turned upward through the rotating rod 162, so that the limiting plate 163 is located at the upper end of the connecting plate 161, until the plug plate 17 and the connecting plate 161 are attached, at this time the limiting plate 163 is turned downward, under the action of gravity, the limiting plate 163 is in a vertical state, at this time the plug plate 17 is located between the connecting plate 161 and the limiting plate 163, at this time the adjusting frame 12 cannot be pushed outward, the device always maintains the shape of the sofa, the triangular shape of the triangular frame 2 can increase the structural strength of the support frame 1, so that the overall carrying capacity of the device is higher, when the device maintains the shape of the bed, the adjusting bolt 15 can be turned, so that the anti-skid block 18 at the lower end of the adjusting bolt 15 is attached to the ground, at this time the device is stably placed on the ground, and the adjusting frame 12 cannot be pushed inward, the device maintains the shape of the bed, the setting of the rubber pad 19 can avoid the direct contact between the triangular frame 2 and the wall surface of the bed head, and protect the wall surface from being damaged.
[0036] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the scope of protection of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.
Claims
1. A combined sofa bed comprising a support frame (1), characterized in that: The upper end inner wall of the support frame (1) is provided with an adjusting block (3), the upper end of the adjusting block (3) is connected with a first square frame (4), the side, away from the adjusting block (3), of the lower end of the first square frame (4) is provided with two groups of symmetrical link blocks (5), the middle end of the link block (5) is provided with a connecting pin (6), the upper end of the connecting pin (6) is connected with a second square frame (7), the outer wall, away from the connecting pin (6), of the side of the second square frame (7) is provided with two groups of symmetrical fixed blocks (8), the middle end of the fixed block (8) is provided with a rotating shaft (9), one end of the rotating shaft (9) is connected with a third direction frame (10), the lower end of the third direction frame (10) is connected with an adjusting frame (12), the lower end of the adjusting frame (12) is connected with four rollers (13), the middle part of the bottom end of the support frame (1) is provided with a limiting component (16), and the middle part of the bottom end of the adjusting frame (12) is provided with an insertion plate (17).
2. The combination sofa-bed defined in Claim 1, wherein: The bottom end of the support frame (1) is fixedly provided with a tripod (2), and the outer wall, away from the support frame (1), of one end of the tripod (2) is fixedly provided with a rubber pad (19).
3. The combination sofa-bed defined in Claim 1, wherein: The lower end of the adjusting block (3) is fixedly connected with the upper end of the support frame (1), the upper end of the adjusting block (3) is rotatably connected with the inner wall of the first square frame (4), the outer wall of the lower end of the connecting pin (6) is rotatably connected with the inner wall of the link block (5), and the outer wall of the rotating shaft (9) is rotatably connected with the inner wall of the fixed block (8).
4. The combination sofa-bed defined in Claim 1, wherein: The middle end of the first square frame (4), the second square frame (7) and the third direction frame (10) is fixedly provided with a plurality of groups of reinforcing frames (11).
5. The combination sofa-bed defined in Claim 1, wherein: The bottom end of the adjusting frame (12) is provided with two groups of symmetrical fixed plates (14), the middle end of the fixed plate (14) is threadedly inserted with an adjusting bolt (15), and the bottom end of the support frame (1) and the lower end of the adjusting bolt (15) are fixedly provided with anti-skid blocks (18).
6. The combination sofa-bed defined in Claim 1, wherein: The limiting component (16) comprises a connecting plate (161) fixedly arranged at the middle part of the bottom end of the support frame (1), a rotating rod (162) rotatably connected with the upper end of the connecting plate (161), a limiting plate (163) fixedly arranged at one end, away from the connecting plate (161), of the rotating rod (162), and a plug rod (164) fixedly arranged at the outer wall of the lower end of the limiting plate (163).
7. The sectional sofa bed of claim 6, wherein: The plug rod (164) can be movably inserted through the insertion plate (17), and the middle end of the insertion plate (17) is provided with an insertion hole matched with the plug rod (164).
8. The sectional sofa-bed according to claim 6, characterized in that: The distance between the end faces, close to each other, of the limiting plate (163) and the connecting plate (161) is equal to the width of the insertion plate (17).