Detachable modularized sofa bed unit

Abstract

The utility model relates to a detachable modularized sofa bed unit which comprises a base and a detachable armrest backrest, the base is defined by a set of base enclosures, at least two base enclosures are provided with insertion hole assemblies, and the detachable armrest backrest is provided with insertion rods which extend downwards and are matched with the insertion hole assemblies; the bottom end of the outer abutting face of the detachable handrail backrest is lower than the upper end of the inserting rod and matched with the outer side face of the base fence. And the jack assembly is provided with a fixed seat fixed on the inner side surface of the base enclosure. The detachable armrest backrests can be mounted in different directions of the base and combined with other sofa bed units to form a bed or a sofa, and the detachable armrest backrests can be placed in the base when not used, so that transportation is facilitated. In addition, after the detachable armrest backrest insertion rod is inserted into the base enclosure, the backrest insertion rod can bear the leaning force of the human body, and the human body is more comfortable. In addition, the inserting rod and the outer abutting face further form a fence for clamping the base, so that the overall structure is firmer, and the service life is greatly prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of household products, and in particular to a detachable modular sofa bed unit. Background Art

[0002] A sofa bed is a piece of furniture that can be transformed between two forms: a sofa and a bed. There are many types of sofa beds on the market. In terms of transportation, many sofa beds are transformed into sofas by folding, pushing and pulling to appropriately reduce the space occupied, but this sofa state still takes up a lot of space and cannot solve the transportation problem well. At the same time, before the sofa bed can be transformed into each other, it needs to be assembled first. The finished product assembly process of sofa beds on the market is relatively cumbersome, and professional installers are required to install them on site, which increases labor costs; the style of the sofa bed after installation is fixed, and it can only be converted between fixed styles of sofas and beds, which cannot meet the diversified needs of more and more people today.

[0003] For example, the modular sofa disclosed in patent No. 202222110451.3 solves some of the above problems, but the backrest of the modular sofa is inserted straight up and down into the socket, which is directly opened on the base plate. This type of backrest is vertical, which is not suitable for human body leaning, not only making the user uncomfortable, but also not strong enough, easy to damage, and short service life. Summary of the invention

[0004] In order to solve the problem that the backrest of the above-mentioned modular sofa is not suitable for human body to lean on, the present application provides a detachable modular sofa bed unit, which adopts a multi-point support method of fixed seat support plug rod and base enclosure support outer resistance surface, so that the backrest can be slightly tilted to adapt to human body to lean on, and meet the needs of modular assembly and transportation. Multiple units can be combined together to easily switch into two states: bed and sofa.

[0005] The present application provides a detachable modular sofa bed unit adopts the following technical solution:

[0006] The detachable modular sofa bed unit comprises a base and a detachable armrest backrest, wherein the base is surrounded by a group of base enclosures, wherein at least two of the base enclosures are provided with a socket assembly, and the detachable armrest backrest is provided with an insertion rod extending downward and cooperating with the socket assembly; the bottom end of the outer abutment surface of the detachable armrest backrest is lower than the upper end of the insertion rod and cooperating with the outer side surface of the base enclosure; the socket assembly is provided with a fixing seat fixed on the inner side surface of the base enclosure.

[0007] By adopting the above technical solution, the detachable armrest backrest can be installed on the base enclosure at different positions of the base as needed, and combined with other sofa bed units to form a bed or sofa, and the detachable armrest backrest can be placed in the base when not in use, which is convenient for transportation. In addition, the structural setting of the detachable armrest backrest plug rod enables it to be plugged into the socket assembly of the base, and the bottom end of the plug rod and the bottom end of the outer abutment surface are respectively supported on the inner and outer sides of the base enclosure, which can withstand the force of the human body leaning, and the backrest can be slightly tilted to make the human body more comfortable. The plug rod and the outer abutment surface also form a clamping force on the base enclosure, making the overall structure more solid and greatly improving the service life.

[0008] Preferably, the base enclosure is provided with a mounting groove with an open upper end; the jack assembly is provided with a plug located in the mounting groove, and the plug is provided with an elastic bushing with a convex outer surface; the fixing seat is fixedly connected to the plug.

[0009] By adopting the above technical solution, the jack assembly can be hidden, and the connection between the plug rod and the jack assembly can be more firmly connected to meet the needs of multiple plug-ins.

[0010] Preferably, a spring seat is provided above the base, the spring seat is surrounded by a group of spring seat enclosures, the spring seat is filled with pocket springs, and the upper surface of the pocket springs is covered with a cushion.

[0011] By adopting the above technical solution, the comfort level during use can be greatly improved.

[0012] Preferably, the bottom end of the inner abutment surface of the detachable armrest backrest abuts against the top of the spring seat enclosure.

[0013] By adopting the above technical solution, the detachable armrest backrest has an additional fulcrum, which makes it more firm and comfortable when used and can meet the needs of multiple disassembly and assembly.

[0014] Preferably, a baffle plate for covering the jack assembly is provided on the outside of the base enclosure, and the bottom end of the outer abutment surface of the detachable armrest backrest is indirectly matched with the outer side surface of the base enclosure through the baffle plate.

[0015] By adopting the above technical solution, the jack assembly can be hidden, making the appearance of the sofa bed more concise and beautiful.

[0016] Preferably, the detachable armrest backrest comprises a main body with an inner abutment surface and an outer abutment surface, the main body is fixed on the bracket, an elastic pad is sandwiched between the inner abutment surface and the outer abutment surface of the main body, the upper ends of the inner abutment surface and the outer abutment surface of the main body are connected as a whole, the inner abutment surface is inclined, and the bottom end of the inner abutment surface is higher than the bottom end of the outer abutment surface.

[0017] By adopting the above technical solution, the detachable armrest backrest is elastic and fits the back of the human body better, making it more comfortable to use.

[0018] Preferably, the bracket has a horizontal rod and a vertical rod, and the upper end of the insertion rod is fixed to the intersection of the horizontal rod and the vertical rod.

[0019] By adopting the above technical solution, the firmness of the detachable armrest backrest can be increased to meet the needs of multiple disassembly and assembly.

[0020] Preferably, a support frame for supporting the spring mesh pad is provided on the inner side of the base enclosure, and the support frame is surrounded by a group of mesh pad enclosures fixed above the fixing seat.

[0021] By adopting the above technical solution, the mesh pad enclosure can support the fixing seat of the jack assembly, making the detachable armrest backrest more secure when in use. At the same time, a larger space can be formed in the base, and the detachable armrest backrest and other components can be placed in it during transportation.

[0022] Preferably, the supporting force of the outer pocket springs of the detachable modular sofa bed unit is higher than the supporting force of the inner pocket springs.

[0023] By adopting the above technical solution, the problem of edge slippage during splicing can be solved.

[0024] Preferably, the base is covered with a sofa leather, and the sofa leather is provided with a bondable opening at a position corresponding to the jack assembly.

[0025] By adopting the above technical solution, components such as the jack assembly can be hidden, thereby improving the appearance of the appearance without affecting the insertion of the plug rod.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The detachable modular sofa bed sheet of the utility model can be disassembled into units for transportation. During transportation, the excess parts can be placed in the base for packing, which is easy to operate and occupies little space. Multiple units can be combined together to form a bed or sofa.

[0028] 2. When the detachable armrest backrest of the utility model is connected to the base, there are multiple supporting points, which is more firm and reliable, meets the needs of multiple plug-ins, and has a long service life; and the backrest can be slightly tilted during use, which meets the needs of human body leaning, greatly improving the comfort during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the bottom structure of an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the explosion decomposition structure of an embodiment of the present application;

[0032] Figure 4 It is a schematic diagram of the exploded structure of the detachable armrest backrest of an embodiment of the present application;

[0033] Figure 5 It is a schematic diagram of the matching structure of the detachable armrest backrest and the spring enclosure in an embodiment of the present application;

[0034] Figure 6 It is a schematic diagram of the structure of the cooperation between the base enclosure and the socket assembly in the embodiment of the present application;

[0035] Figure 7 It is a schematic diagram of the exploded structure of the jack assembly of an embodiment of the present application;

[0036] Figure 8 It is a schematic diagram of the structure of the sofa assembled in this application;

[0037] Fig. 9 It is a structural schematic diagram of the combined bed of the present application.

[0038] Explanation of the reference numerals: base 1; base enclosure 11; socket assembly 111; fixed seat 1111; insertion tube 1112; elastic bushing 1113; baffle 12; mesh pad enclosure 13; supporting foot 14; detachable armrest backrest 2; insertion rod 21; bracket 22; fixed side panel 23; outer panel 24; elastic pad 25; main body 26; bottom end of inner abutment surface 261; bottom end of outer abutment surface 262; spring seat 3; spring seat enclosure 31; pocket spring 32; spring base pad 33; seat cushion 4. DETAILED DESCRIPTION

[0039] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0040] The following is combined with Figure 1 -Attached Fig. 9 This application is described in further detail.

[0041] like Figure 1As shown, this detachable modular sofa bed unit includes a base 1 and a detachable armrest backrest 2. A spring seat 3 is provided above the base 1, and a sponge cushion 4 is covered above the spring seat 3. People can switch between the two states of sofa and bed at will by flexibly assembling the base 1 and the detachable armrest backrest 2 according to their own needs. The sponge cushion 4 is connected to the spring seat 3 through a hidden zipper. The sponge cushion 4 is a stress-bearing surface layer and is often in contact with the outside world. Through such a detachable design, the sponge cushion 4 can be easily removed for cleaning. At the same time, the sponge cushion 4 can also be compressed and packed by rolling during transportation, and then put into the base 1, which is simple and convenient and saves space.

[0042] like Figure 2 As shown, the base 1 is provided with four wooden support legs 14. A space is formed in the base 1, and components such as the detachable armrests and backrests 2 can be placed therein when not in use, which is convenient for transportation.

[0043] like Figure 3 As shown, the base 1 is surrounded by four wooden base enclosures 11 to form a square, three of which are provided with jack components 111, and the detachable armrest backrest 2 is provided with an insertion rod 21 extending downward and cooperating with the jack components 111. The bottom end 262 of the outer abutment surface of the detachable armrest backrest 2 is lower than the upper end of the insertion rod 21 and is cooperating with the outer side surface of the base enclosure 11. The jack component 111 is provided with a fixing seat 1111 fixed to the inner side surface of the base enclosure 11.

[0044] A baffle plate 12 for covering the jack assembly 111 is disposed on the outside of the base enclosure 11 , and the bottom end 262 of the outer abutment surface of the detachable armrest backrest 2 is indirectly matched with the outer side surface of the base enclosure 11 through the baffle plate 12 .

[0045] The spring seat 3 is surrounded by a group of spring seat enclosures 31, and the spring seat 3 is filled with pocket springs 32. A spring base pad 33 is provided below the pocket spring 32, and a seat cushion 4 is covered on its upper surface.

[0046] A support frame for supporting the spring mesh pad is provided inside the base enclosure 11, and the support frame is surrounded by a group of mesh pad enclosures 13 fixed above the fixing seat 1111. The upper edge of the mesh pad enclosure 13 is flush with the base enclosure 11, and the lower edge is located above the fixing seat 1111. The force analysis of the detachable armrest backrest 2 inserted in the socket assembly 111 through the insertion rod 21 is as follows: 1) When a force is applied to the inner resistance surface of the detachable armrest backrest 2, the mesh pad enclosure 13 can prevent the insertion tube 1112 of the socket assembly 111 from deviating inward; 2) When people lean against the inner resistance surface, the detachable armrest backrest 2 will give the insertion tube 1112 a force away from the base enclosure 11 through the insertion rod. At this time, the fixed seat 1111 resists this force. The fixed seat 1111 can pull the insertion tube 1112. The fixed seat 1111 itself has a certain area. The larger the area, the smaller the force per unit area. In other words, compared with the case where the fixed seat 1111 is not used, the insertion tube 1112 using the fixed seat 1111 can withstand greater force, effectively preventing damage to the base enclosure 11 and increasing its service life.

[0047] like Figure 4 As shown, the detachable armrest backrest 2 includes a main body 26 with an inner abutment surface and an outer abutment surface, the main body 26 is fixed on the bracket 22, and an elastic pad 25 is sandwiched between the inner abutment surface and the outer abutment surface of the main body 26. The upper ends of the inner abutment surface and the outer abutment surface are connected as a whole, the inner abutment surface is tilted downward away from the outer abutment surface, and the bottom end 261 of the inner abutment surface is higher than the bottom end 262 of the outer abutment surface. In this way, when in use, the backrest can be slightly tilted and has elasticity.

[0048] The stainless steel bracket 22 has a horizontal bar and a vertical bar, and the insertion rod 21 is welded at the intersection of the horizontal bar and the vertical bar.

[0049] like Figure 5 As shown, the bottom end 261 of the inner abutment surface of the detachable armrest backrest 2 forms a transverse stem extending away from the outer abutment surface. When the detachable armrest backrest 2 is plugged into the base 1 through the insertion rod 21, the transverse stem abuts against the inner side of the upper end of the spring seat enclosure 31. The bottom end 261 of the inner abutment surface, the bottom end 262 of the outer abutment surface and the bottom end of the insertion rod 21 form a three-point support, which significantly enhances the firmness of the detachable armrest backrest 2 when plugged in. The plug-in detachable armrest backrest 2 is easy to operate and clean. The disassembled detachable armrest backrest 2 can be placed in the base 1, saving transportation space and reducing transportation costs.

[0050] like Figure 6 As shown, the base enclosure 11 is provided with a mounting groove 112 with an open top; the jack assembly 111 is provided with an insert pipe 1112 located in the mounting groove 112. The middle of the fixing seat 1111 is fixedly connected to the insert pipe 1112, and the four corners of the fixing seat 1111 are fixed to the base enclosure 11 on both sides of the mounting groove 112, and the bottom edge of the fixing seat 1111 is consistent with the bottom edge of the mounting groove 112.

[0051] like Figure 7 As shown, an elastic bushing 1113 with convex patterns on the outer surface is provided inside the insert tube 1112. The elastic bushing 1113 made of plastic has an interference fit with the insert tube 1112. The upper end of the elastic bushing 1113 is flared to facilitate insertion of the insert rod 21. The convex patterns can increase the friction resistance between the elastic bushing 1113 and the insert tube 1112, and can effectively prevent the elastic bushing 1113 from falling out of the insert tube 1112. The elastic bushing 1113 is made of plastic. Compared with metal or wood, the plastic material can more effectively ensure the smoothness of the inside of the elastic bushing 1113, making it easier to insert the iron insert rod 21; in addition, the elastic bushing 1113 is in an open-up state when in use. In daily life, due to weather or human factors, water may accumulate at the bottom, and the plastic material can prevent rust due to accumulated water.

[0052] like Figure 8 As shown, 4 detachable modular sofa bed units are combined into a sofa with 6 detachable armrests and backrests 2, 2 of which are used as armrests and 4 as backrests. The 4 bases 1 can be spliced ​​with Velcro, which is simple and convenient to operate. If conditions permit, the number of bases can be increased and can be combined at will according to one's own situation, which is highly flexible. Figure 8 The sofa in the figure is in a state where the cushion 4 is not laid yet. It can be seen that the spring seat 3 is filled with pocket springs 32, and the supporting force of the outer pocket springs 32 is higher than that of the inner pocket springs 32 by about 20%. This design aims to solve the problem of splicing edge slippage.

[0053] like Fig. 9 As shown, 4 removable modular sofa bed units are combined into a double bed with 2 removable armrests and backrests 2 as the backrest of the bed.

[0054] In addition, not shown in the figure, the base can also be covered with a sofa leather, and the sofa leather is provided with a bonding opening at a position corresponding to the jack component 111. The sofa leather can be the same color as the outer layer of the present application. When there is no detachable armrest backrest 2 on one side, it is only necessary to bond the opening.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A detachable modular sofa bed unit, comprising a base (1) and a detachable armrest backrest (2), characterized in that: The base (1) is surrounded by a group of base enclosures (11), wherein at least two of the base enclosures (11) are provided with a socket assembly (111); the detachable armrest backrest (2) is provided with an insertion rod (21) extending downward and cooperating with the socket assembly (111); the bottom end (262) of the outer abutment surface of the detachable armrest backrest (2) is lower than the upper end of the insertion rod (21) and cooperating with the outer side surface of the base enclosure (11); the socket assembly (111) is provided with a fixing seat (1111) fixed to the inner side surface of the base enclosure (11).

2. The detachable modular sofa bed unit according to claim 1, characterized in that: The base enclosure (11) is provided with a mounting groove (112) with an open upper end; the socket assembly (111) is provided with a plug tube (1112) located in the mounting groove (112), and the plug tube (1112) is provided with an elastic bushing (1113) with a convex pattern on the outer surface; the fixing seat (1111) is fixedly connected to the plug tube (1112).

3. A detachable modular sofa bed unit according to claim 1 or 2, characterized in that: A spring seat (3) is provided above the base (1), the spring seat (3) being surrounded by a group of spring seat enclosures (31), the spring seat (3) being filled with pocket springs (32), the upper surface of the pocket springs (32) being covered with a cushion (4).

4. The detachable modular sofa bed unit according to claim 3, characterized in that: The bottom end (261) of the inner abutment surface of the detachable armrest backrest (2) abuts against the top of the spring seat enclosure (31).

5. The detachable modular sofa bed unit according to claim 1, characterized in that: A baffle (12) for covering the jack assembly (111) is provided on the outside of the base enclosure (11), and the bottom end (262) of the outer abutment surface of the detachable armrest backrest (2) indirectly cooperates with the outer side surface of the base enclosure (11) through the baffle (12).

6. The detachable modular sofa bed unit according to claim 1, characterized in that: The detachable armrest backrest (2) comprises a main body (26) with an inner abutment surface and an outer abutment surface, the main body (26) being fixed on a bracket (22), an elastic pad (25) being sandwiched between the inner abutment surface and the outer abutment surface of the main body (26), the upper ends of the inner abutment surface and the outer abutment surface of the main body (26) being connected as a whole, the inner abutment surface being arranged at an angle, and the bottom end (261) of the inner abutment surface being higher than the bottom end (262) of the outer abutment surface.

7. The detachable modular sofa bed unit according to claim 6, characterized in that: The bracket (22) has a horizontal rod and a vertical rod, and the upper end of the insertion rod (21) is fixed to the intersection of the horizontal rod and the vertical rod.

8. The detachable modular sofa bed unit according to claim 1, characterized in that: A support frame for supporting the spring mesh pad is provided on the inner side of the base enclosure (11), and the support frame is surrounded by a group of mesh pad enclosures (13) fixed above the fixing seat (1111).

9. The detachable modular sofa bed unit according to claim 1, characterized in that: The supporting force of the outer pocket springs (32) of the detachable modular sofa bed unit is higher than the supporting force of the inner pocket springs (32).

10. The detachable modular sofa bed unit according to claim 1, characterized in that: The base (1) is covered with a sofa leather, and the sofa leather is provided with a bondable opening at a position corresponding to the socket assembly (111).

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