Sofa bed

Abstract

The utility model discloses a sofa bed, which belongs to the technical field of bed bodies and comprises a plurality of groups of connecting assemblies, a plurality of connecting assemblies, a plurality of connecting assemblies and a plurality of connecting assemblies, a bottom frame; the backrest is mounted at the back end of the bottom frame through at least one group of connecting components; the number of the armrests is at least one, and the armrests are installed on any side edge of the bottom frame through at least one set of connecting assemblies. Connecting assemblies are pre-installed on all the parts before transportation, more compact permutation and combination can be carried out in the transportation and packaging links, the high packing amount is achieved, the transportation efficiency is improved, and the transportation cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bed body technical field especially relates to a sofa bed. BACKGROUND

[0002] In the field of modern household products, the sofa bed as the practical furniture with sofa and bed functions is widely favored. However, the traditional sofa bed has many problems in the transportation and assembly links.

[0003] From the transportation point of view, the traditional sofa bed is difficult to arrange and combine compactly before transportation due to the relatively fixed structure of each component. The large volume and irregular shape result in low utilization rate of transportation space and limited packing amount. This not only increases the occupied space in the transportation process, but also greatly increases the transportation cost, especially for large-scale sales and long-distance transportation. The high transportation cost seriously affects the market competitiveness of the product.

[0004] In terms of assembly, the traditional sofa bed often needs to be assembled by the user with the help of professional tools, and the assembly steps are complicated. The complex assembly process not only consumes a lot of time, but also may cause assembly errors due to improper operation, affecting the normal use and overall quality of the sofa bed.

[0005] Therefore, it is necessary to develop a tool-free quick-assembly sofa bed which can realize high packing amount and reduce transportation cost in the transportation process, and can be easily assembled by the user without professional tools. SUMMARY

[0006] The embodiment of the utility model provides a sofa bed to solve the problem in prior art.

[0007] The embodiment of the utility model adopts the following technical scheme: a sofa bed comprises: a plurality of groups of connecting assemblies, each group of connecting assemblies being used to detachably connect two objects to be connected; a bottom frame; a backrest installed at the back end of the bottom frame through at least one group of connecting assemblies; and at least one armrest installed on any side edge of the bottom frame through at least one group of connecting assemblies. Each component is pre-installed with a connecting assembly before transportation, and can be arranged and combined more compactly in the transportation and packaging links, thereby realizing high packing amount, improving transportation efficiency, and reducing transportation cost.

[0008] Preferably, each set of connecting components comprises: a first base plate longitudinally mounted on one of the objects, the first base plate having at least one clamping slot penetrating through the first base plate, the clamping slot being composed of a first slot and a second slot in communication with the first slot; and a second base plate longitudinally mounted on the other object, the second base plate having a plurality of limiting portions corresponding to the clamping slots on the first base plate and a locking block on the limiting portions; the limiting portions are inserted into the corresponding first slots and moved into the second slots so that the locking block abuts against the first base plate, thereby achieving the locking between the second base plate and the first base plate.

[0009] Preferably, the second slot is located below the first slot, the first slot is in the shape of a round hole, and the second slot is in the shape of a strip hole; the limiting portion is in the shape of a rod, the length of the limiting portion is adapted to the depth of the clamping slot, and the locking block is located at the end of the rod. The entire assembly process does not require additional tools, and only relies on the unique design of the connecting components and the gravity of the components themselves to achieve quick assembly of each component.

[0010] Preferably, the first base plate and the second base plate are each provided with a positioning hole, and the two positioning holes are oppositely arranged and inserted into the two positioning holes by a positioning pin after the first base plate and the second base plate are mounted in place. The cooperation between the locking block and the clamping slot in the connecting components achieves the preliminary connection, and the positioning pin and the positioning hole further reinforce it, so that the connection is extremely stable.

[0011] Preferably, the lower end of the first base plate is provided with a corner plate distributed at ninety degrees thereto, the corner plate is mounted at the lower end of the bottom frame, and the first base plate abuts against the back end or the side end of the bottom frame.

[0012] Preferably, the lower end of the bottom frame has an embedded mounting slot, and the corner plate is mounted in the mounting slot. The mounting slot can avoid the corner plate occupying the space below the bottom frame, and is generally suitable for the case where the gap between the lower end of the bottom frame and the ground is too small.

[0013] Preferably, the left and right sides of the backrest are each provided with a sliding block, and the inner side ends of the two armrests are each provided with a sliding rail, and the two sliding blocks are longitudinally slidably connected to the two sliding rails, respectively. When the armrests are installed, the sliding blocks installed on the left and right sides of the backrest match the sliding rails installed on the inner side ends of the armrests, so that the armrests and the backrest also establish a connection relationship, thereby optimizing the connection stability of the overall sofa bed structure.

[0014] Preferably, the sofa bed further comprises a sofa cushion, which is composed of a first subzone, a second subzone and a third subzone in sequence along the length direction of the sofa cushion to form a three-subzone structure; wherein any group of adjacent subzones can be folded relative to each other; the sofa cushion has a sofa form and a bed form; in the sofa form, the first subzone is arranged on the bottom frame, the second subzone is folded and arranged above the first subzone, and the third subzone is folded and arranged on the backrest; in the bed form, the first subzone is arranged on the bottom frame, and the second subzone and the third subzone are both in the unfolded state and arranged in front of the bottom frame. The sofa cushion can be compressed into a roll, and in the transportation and packaging process, the parts can be arranged and combined more compactly to realize high packing volume.

[0015] Preferably, a plurality of holes are arranged on the bottom frame, and the lower end of the first subzone is provided with at least one strap connected thereto; the first subzone is fixed on the bottom frame by penetrating the holes through the plurality of straps, so as to fix the sofa cushion on the bottom frame, thereby avoiding displacement of the sofa cushion during use.

[0016] The above at least one technical scheme adopted by the embodiment of the utility model can achieve the following beneficial effects:

[0017] In the factory production stage, a plurality of groups of connecting assemblies are pre-assembled on the bottom frame, the backrest and the armrest, thereby providing convenience for subsequent assembly. When the sofa bed needs to be assembled, the user only needs to connect the backrest and the bottom frame through the corresponding connecting assemblies, and the stable connection between the backrest and the bottom frame can be easily realized by virtue of the detachable connection of the connecting assemblies; similarly, the armrest is installed on the side of the bottom frame through the connecting assembly. The whole process does not need to use additional tools, and the quick splicing of the components is realized by virtue of the special design of the connecting assembly, so that the complete sofa bed is built. Since the connecting assemblies are pre-installed on the components before transportation, the components can be arranged and combined more compactly in the transportation and packaging process, thereby realizing high packing volume, improving transportation efficiency and reducing transportation cost. In addition, the user can complete the assembly by himself by using the existing connecting assemblies without professional tools, which greatly reduces the assembly difficulty and saves assembly time. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and are used to explain the utility model together with the specification, but do not constitute improper limitations on the utility model. In the drawings:

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is an assembly schematic view of the connecting assembly of the utility model;

[0021] Figure 3 Assembling diagram of the bottom frame and the connecting assembly in the pre-assembly state of the utility model Figure 1

[0022] Figure 4 Assembling diagram of the bottom frame and the connecting assembly in the pre-assembly state of the utility model Figure 2

[0023] Figure 5 Assembling diagram of the backrest and the armrest of the utility model Figure 1

[0024] Figure 6 Assembling diagram of the backrest and the armrest of the utility model Figure 2

[0025] Figure 7 Sofa cushion in the bed form of the utility model is the perspective view;

[0026] Figure 8 Sofa cushion in the sofa form of the utility model is the perspective view;

[0027] Figure 9 The state diagram of the sofa cushion compressed into a roll of the utility model;

[0028] Reference signs

[0029] 1-connecting assembly; 11-first base plate; 111-first slot; 112-second slot; 113-angle plate; 114-first counterbore; 12-second base plate; 121-limiting part; 122-lock block; 123-second counterbore; 13-positioning hole; 2-bottom frame; 21-mounting groove; 22-hole; 3-backrest; 31-sliding block; 4-armrest; 41-sliding rail; 5-sofa cushion; 51-first partition; 52-second partition; 53-third partition. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0031] The technical solutions provided by the embodiments of the utility model are described in detail in combination with the drawings as follows.

[0032] Referring to Figures 1 to 8 The embodiment of the utility model provides a sofa bed, mainly including connecting assembly 1, bottom frame 2, backrest 3 and armrest 4, the armrest 4 of sofa bed generally will be configured with two, and respectively installed in the left and right sides of the bottom frame 2, for some special application scene, the armrest 4 can also choose single side installation or not installation.

[0033] ​​​​The connecting assembly 1 is configured with several groups, each of which is used to detachably connect two objects to be connected; the backrest 3 is mounted on the back end of the base frame 2 through at least one group of connecting assemblies 1; and the armrest 4 is provided with at least one, which is mounted on any side edge of the base frame 2 through at least one group of connecting assemblies 1.

[0034] In the factory production stage, several groups of connecting assemblies 1 are pre-assembled on the base frame 2, the backrest 3 and the armrest 4 to facilitate subsequent assembly. When the sofa bed needs to be assembled, the user only needs to dock the backrest 3 with the back end of the base frame 2 through the corresponding connecting assembly 1, and easily complete the stable connection of the two by using the detachable connection characteristics of the connecting assembly 1; similarly, the armrest 4 is mounted on the side edge of the base frame 2 through the connecting assembly 1. The whole process does not need to rely on additional tools, and relies on the special design of the connecting assembly 1 to realize the rapid splicing of each component, so as to build a complete sofa bed.

[0035] In this embodiment, since each component is pre-installed with the connecting assembly 1 before transportation, more compact arrangement and combination can be performed during transportation and packaging, high packing amount is realized, transportation efficiency is improved, and transportation cost is reduced. In addition, the user can complete the assembly by himself using the existing connecting assembly 1 without professional tools, which greatly reduces the assembly difficulty and saves the assembly time.

[0036] In some practical applications, as shown in Figures 1 to 4 each group of connecting assemblies 1 includes a first base plate 11 and a second base plate 12. The first base plate 11 is longitudinally mounted on one of the objects, and the first base plate 11 has at least one clamping slot penetrating through the first base plate 11, which is composed of a first slot 111 and a second slot 112 in communication with the first slot 111; the second base plate 12 is longitudinally mounted on the other object, and the second base plate 12 has a plurality of limiting portions 121 corresponding to the clamping slots on the first base plate 11 one by one, and a locking block 122 located on the limiting portion 121; the limiting portion 121 is inserted into the corresponding first slot 111 and moved into the second slot 112, so that the locking block 122 abuts against the first base plate 11, realizing the locking between the second base plate 12 and the first base plate 11.

[0037] In the factory production stage, generally speaking, the first substrate 11 is fixedly connected with the bottom frame 2, and the second substrate 12 is fixedly connected with the backrest 3 or the armrest 4 (the second substrate 12 is provided with a plurality of second through holes 123, and a wooden screw is correspondingly arranged in each second through hole 123 to mount the second substrate 12 on the corresponding backrest 3 or armrest 4). The first substrate 11 is longitudinally fixed on the bottom frame 2, and the clamping groove is composed of the first slot 111 and the second slot 112 in communication. The second substrate 12 is also longitudinally mounted on the backrest 3 or the armrest 4, and the second substrate 12 is provided with a limiting portion 121 and a locking block 122 corresponding to the clamping groove. When the user assembles the sofa bed, the limiting portion 121 of the second substrate 12 is inserted into the first slot 111 of the first substrate 11, and then the second substrate 12 (i.e. the backrest 3 or the armrest 4) is pushed, so that the limiting portion 121 slides into the second slot 112. At this time, the locking block 122 is tightly abutted against the first substrate 11, the locking of the connecting assembly 1 between the two components is completed, and the backrest 3 and the bottom frame 2 are stably connected at the back end, and the armrest 4 and the bottom frame 2 are stably connected at the side edge, so that the complete sofa bed can be built without the aid of tools. It should be noted that the second substrate 12 is pre-assembled on the corresponding backrest 3 or armrest 4 in the factory, and the first substrate 11 is also pre-assembled on the corresponding position of the bottom frame 2 in the factory (for example Figure 3 and Figure 4 ).

[0038] Specifically, the second slot 112 is located below the first slot 111, the first slot 111 is provided in a circular hole shape, and the second slot 112 is provided in a strip hole shape; the limiting portion 121 is provided in a rod shape, the length of the limiting portion 121 is matched with the depth of the clamping groove, and the locking block 122 is located at the end of the rod shape.

[0039] Here, taking the installation of the backrest 3 as an example, the limiting portion 121 of the second substrate 12 on the backrest 3 is inserted into the first slot 111 of the first substrate 11 on the corresponding bottom frame 2, and the locking block 122 completely leaks out of the first slot 111, and then the backrest 3 naturally descends relying on the weight of the backrest 3 itself, so that the limiting portion 121 falls into the second slot 112, and the locking block 122 can be hooked on the first substrate 11 at the back of the first substrate 11, thereby realizing the stable connection between the two. Similarly, the installation of the armrest 4 is also through similar operation, that is, the limiting portion 121 of the second substrate 12 on the armrest 4 is inserted into the corresponding clamping groove of the first substrate 11 of the bottom frame 2, and the installation is completed. The entire assembly process does not require additional tools, and only relies on the unique design of the connecting assembly 1 and the gravity of the components themselves, so that the components can be quickly spliced.

[0040] In some practical applications, referring to Figure 2As shown, based on the above card slot composed of the first slot 111 and the second slot 112, especially when the second slot 112 is below the first slot 111, by providing positioning holes 13 on the first substrate 11 and the second substrate 12, the first substrate 11 and the second substrate 12 are installed in place, the two positioning holes 13 are arranged opposite to each other, and a positioning pin is inserted into the two positioning holes 13. The cooperation of the locking block 122 and the card slot in the connecting assembly 1 realizes preliminary connection, the positioning pin and the positioning hole 13 further reinforce, and double protection makes the connection extremely stable. In daily use, the sofa bed parts are not easy to loosen when subjected to external pulling, extrusion or frequent sitting and lying of people.

[0041] In some practical applications, referring to Figures 1 to 4 As shown, the lower end of the first substrate 11 is provided with a corner plate 113 distributed at ninety degrees therefrom, the corner plate 113 is installed at the lower end of the bottom frame 2 (generally, a plurality of first counterbores 114 are provided on the corner plate 113, and a wooden screw is correspondingly provided in each first counterbore 114 to install the corner plate 113 on the bottom frame 2), and the first substrate 11 is attached to the back end or side end of the bottom frame 2. The first substrate 11 is fixed by the corner plate 113. For example, when the first substrate 11 is used to connect the backrest 3, it is installed at the back end of the bottom frame 2, and when the first substrate 11 is used to connect the armrest 4, it is installed at the side of the bottom frame 2.

[0042] In addition, the bottom frame 2 can have an embedded mounting groove 21 at the lower end, and the corner plate 113 is installed in the mounting groove 21, which can avoid occupying the space below the bottom frame 2, and is generally suitable for the case where the gap between the lower end of the bottom frame 2 and the ground is too small.

[0043] In some practical applications, referring to Figure 1 、 Figure 5 and Figure 6 As shown, the left and right sides of the backrest 3 are each provided with a sliding block 31, and the inner side ends of the two armrests 4 are each provided with a sliding rail 41, and the two sliding blocks 31 are respectively connected to the two sliding rails 41 in the longitudinal direction. When the armrest 4 is installed, the sliding blocks 31 installed on the left and right sides of the backrest 3 match the sliding rails 41 installed on the inner side ends of the armrest 4, so that the armrest 4 and the backrest 3 also establish a connection relationship, thereby optimizing the connection stability of the overall sofa bed structure.

[0044] In some practical applications, referring to Figure 1 、 Figures 7 to 9As shown, based on any of the above embodiments, the sofa bed further comprises a sofa cushion 5, which is composed of a first sub-zone 51, a second sub-zone 52 and a third sub-zone 53 in sequence along the length direction of the sofa cushion 5 to form a three-sub-zone structure; wherein any group of adjacent sub-zones can be folded relative to each other; the sofa cushion 5 has a sofa form and a bed form; in the sofa form, the first sub-zone 51 is arranged on the bottom frame 2, the second sub-zone 52 is folded and arranged above the first sub-zone 51, and the third sub-zone 53 is folded and arranged on the backrest 3; in the bed form, the first sub-zone 51 is arranged on the bottom frame 2, and the second sub-zone 52 and the third sub-zone 53 are both in a flat state and located in front of the bottom frame 2. It should be noted that in actual application, the upper end of the bottom frame 2 is relatively close to the ground, so when the sofa cushion 5 is unfolded to a flat state, the part in front of the bottom frame 2 can easily contact the ground, and the upper surface of the sofa cushion 5 also presents a relatively flat state; when the sofa cushion 5 is in the sofa form, its thickness on the seat frame also meets the normal sitting requirements of a user.

[0045] In the present embodiment, each component is pre-assembled into the connection assembly 1, and the sofa cushion 5 can be compressed into a roll, so that each part can be arranged and combined more compactly in the transportation and packaging links, high packing volume is achieved, and transportation efficiency is greatly improved and transportation cost is reduced.

[0046] In addition, the three-sub-zone foldable design of the sofa cushion 5 realizes free switching between the sofa form and the bed form, and meets the use requirements in different scenarios.

[0047] In some actual applications, a plurality of holes 22 are arranged on the bottom frame 2, and the lower end of the first sub-zone 51 of the sofa cushion 5 is provided with at least one strap (not shown in the figure) connected thereto; the first sub-zone 51 passes through the holes 22 and is tied to the bottom frame 2 through the plurality of straps, so as to fix the sofa cushion 5 on the bottom frame 2, thereby fixing the sofa cushion 5 and avoiding displacement of the sofa cushion 5 during use by a user.

[0048] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the technical solution of the present application.

Claims

1. A sofa bed, characterized in that, The utility model relates to a connecting assembly (1) which is configured with several groups, each group of connecting assembly (1) is used to detachably connect two objects to be connected; A bottom frame (2); A backrest (3) is installed on the back end of the bottom frame (2) through at least one group of connecting assembly (1); An armrest (4) is arranged at least one, and the armrest (4) is installed on any side edge of the bottom frame (2) through at least one group of connecting assembly (1). Each group of connecting assembly (1) comprises:

2. A sofa bed according to claim 1, characterised in that A first base plate (11) is longitudinally installed on one of the objects, the first base plate (11) has at least one clamping slot penetrating through the first base plate (11), the clamping slot comprises a first slot (111) and a second slot (112) communicated with the first slot (111); A second base plate (12) is longitudinally installed on the other object, the second base plate (12) has a plurality of limiting portions (121) corresponding to the clamping slot on the first base plate (11) one by one and a locking block (122) on the limiting portion (121); The limiting portion (121) is inserted into the corresponding first slot (111) and moved into the second slot (112) so that the locking block (122) abuts against the first base plate (11), thereby achieving the locking between the second base plate (12) and the first base plate (11). The second slot (112) is located below the first slot (111), the first slot (111) is arranged in a circular hole shape, and the second slot (112) is arranged in a strip-shaped hole shape; the limiting portion (121) is arranged in a rod shape, the length of the limiting portion (121) is matched with the depth of the clamping slot, and the locking block (122) is located at the end of the rod-shaped portion.

3. A sofa bed according to claim 2, wherein, The first base plate (11) and the second base plate (12) are provided with positioning holes (13), and the two positioning holes (13) are arranged opposite after the first base plate (11) and the second base plate (12) are installed in place, and a positioning pin is inserted into the two positioning holes (13).

4. A sofa bed according to claim 3, wherein In any group of connecting assembly (1), the first base plate (11) is fixedly connected with the bottom frame (2), and the second base plate (12) is fixedly connected with the backrest (3) or the armrest (4).

5. The sofa bed defined in Claim 2, wherein The lower end of the first base plate (11) is provided with a corner plate (113) distributed at 90 degrees, the corner plate (113) is installed on the lower end of the bottom frame (2), and the first base plate (11) abuts against the back end or the side end of the bottom frame (2).

6. A sofa bed according to claim 5, wherein, The lower end of the bottom frame (2) has an embedded mounting groove (21), and the corner plate (113) is installed in the mounting groove (21).

7. A sofa bed according to claim 6, wherein The corner plate (113) is provided with a plurality of first counterbores (114), and a wooden screw is arranged in each first counterbore (114) to install the corner plate (113) on the bottom frame (2).

8. The sofa bed defined in Claim 6, wherein The second base plate (12) is provided with a plurality of second counterbores (123), and a wooden screw is arranged in each second counterbore (123) to install the second base plate (12) on the corresponding backrest (3) or armrest (4).

9. The sofa bed defined in Claim 5, wherein ​ 10. The sofa bed defined in Claim 5, wherein The armrests (4) of the sofa bed are provided with two, and are respectively installed on the left and right sides of the bottom frame (2).

11. The sofa bed according to claim 5, wherein, The left and right sides of the backrest (3) are each provided with a sliding block (31), and the inner side ends of the two armrests (4) are each provided with a sliding rail (41), and the two sliding blocks (31) are each longitudinally slidably connected in the two sliding rails (41).

12. The sofa bed defined in Claim 1, wherein The sofa bed further comprises a sofa cushion (5), which is sequentially composed of a first sub-area (51), a second sub-area (52) and a third sub-area (53) along the length direction to form a three-sub-area structure; wherein any group of adjacent sub-areas can be folded relative to each other; the sofa cushion (5) has a sofa form and a bed form; In the sofa form, the first sub-area (51) is correspondingly arranged on the bottom frame (2), the second sub-area (52) is folded and arranged above the first sub-area (51), and the third sub-area (53) is folded and arranged on the backrest (3); In the bed form, the first sub-area (51) is correspondingly arranged on the bottom frame (2), and the second sub-area (52) and the third sub-area (53) are both in a flat state and located in front of the bottom frame (2).

13. A sofa bed according to claim 12, wherein, The bottom frame (2) is provided with a plurality of holes (22), and the lower end of the first sub-area (51) is provided with at least one tie connected thereto, and the first sub-area (51) passes through the holes (22) and is tied on the bottom frame (2) through the plurality of ties, so as to fix the sofa cushion (5) on the bottom frame (2).

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