Multifunctional foldable sofa

Abstract

The utility model relates to the technical field of furniture, in particular to a multifunctional foldable sofa. Comprising a main body frame, handrails and backrests, the handrails are arranged on the two sides of the main body frame respectively, mounting blocks facilitating handrail mounting are fixedly arranged on the main body frame, rotating assemblies conveniently matched with the mounting blocks are arranged on the handrails, and the backrests are arranged on one side of the main body frame. The main body frame is fixedly provided with a sleeve convenient for the placement of the plurality of backrests, and the backrests are inserted into the main body frame through the sleeve. According to the multifunctional foldable sofa provided by the utility model, through the design of the rotating assembly, a user can conveniently adjust the armrests arranged on the two sides of the sofa according to different use requirements, so that the actual lying space of the sofa is expanded, and the actual use effect of the sofa is improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a multifunctional foldable sofa. Background Technology

[0002] A sofa is a multi-seat chair with cushions. It is an essential item in modern home life. Sofas are usually placed in the living room so that people can lie down and rest, thus providing them with great comfort.

[0003] However, in actual use, we found that if the person lying on the sofa is too tall, the length of the sofa is not long enough for them to lie down completely. They usually stick their feet out and put them on the armrests of the sofa to be able to lie down. However, when people lie on the sofa at night, if their feet are on the armrests, it is not convenient to cover their feet with a blanket, making it easy for them to catch a cold when lying on the sofa. The actual use effect is not good.

[0004] On the other hand, most existing sofas are one-piece designs. For small apartments, sofas take up a lot of space and are not easy to move. Therefore, sofas are mostly fixed in a certain position in the living room. However, because sofas are not easy to move, people often need to have multiple chairs at home to meet their daily needs for reading, resting or working. The availability of multiple chairs further reduces the usable space of small apartments, resulting in greater restrictions on the use of sofas.

[0005] Furthermore, existing small-apartment families generally do not have bedrooms for temporarily receiving guests due to the limited space of their homes. If guests stay out too late and cannot go home, they can only stay overnight on the sofa in the living room. However, the sofa provides limited space for lying down. If guests unconsciously turn over while lying down on the sofa, they are very likely to fall off the sofa, causing unnecessary injury to their bodies and failing to provide them with a good rest.

[0006] To address this issue, we designed a multifunctional foldable sofa to provide an alternative technical solution. Utility Model Content

[0007] Therefore, it is necessary to provide a multifunctional foldable sofa that is easy to detach for lying down and can be used as a bed when necessary, in order to address the above-mentioned technical problems.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A multifunctional foldable sofa includes a main frame, armrests, and backrests. The armrests are provided in multiple positions and are located on both sides of the main frame. Mounting blocks for easy installation of the armrests are fixedly provided on the main frame. Rotating components for easy cooperation with the mounting blocks are provided on the armrests. The backrests are provided in multiple positions and are located on one side of the main frame. Sleeves for easy installation of the backrests are fixedly provided on the main frame. The backrests are inserted into the main frame through the sleeves.

[0010] Preferably, the handrail is rotatably mounted on the mounting block, and a limiting rod is fixedly mounted on the main frame to restrict the rotational position of the handrail. A positioning rod is movably mounted inside the handrail, and the handrail has a mounting hole that matches the positioning rod. A compression spring is sleeved on the outside of the positioning rod, and the two ends of the compression spring abut against the inner wall of the mounting hole and the side wall of the positioning rod, respectively. A plurality of cylindrical positioning blocks are fixedly mounted on the end of the positioning rod near the mounting block, and a plurality of positioning recesses that match the cylindrical positioning blocks are provided on the mounting block. A handle that is easy for the user to pull is fixedly mounted on the end of the positioning rod away from the mounting block, and the handle extends to the outside of the handrail through the mounting hole.

[0011] Preferably, the main frame includes a frame one and a frame two. A handrail two is connected to the opposite side of the frame one and the frame two via the rotating assembly. Both the frame one and the frame two are provided with reinforcing strips to strengthen their respective strengths. Each of the reinforcing strips has a groove to facilitate the rotation of the handrail two. A splicing assembly one is provided at the joint between the frame one and the frame two to facilitate user assembly. The splicing assembly one includes multiple columnar splicing blocks fixedly disposed at one end of the frame one. The frame two has insertion holes for inserting the columnar splicing blocks. An installation hole two is provided inside each columnar splicing block. A fan-shaped locking block one is movably secured inside the installation hole two. A compression spring two is provided on one side of the fan-shaped locking block one. The two ends of the compression spring two are fixedly connected to the inner wall of the installation hole two and the side wall of the fan-shaped locking block one, respectively.

[0012] Preferably, the splicing component one further includes multiple column-shaped mounting sleeves slidably sleeved on the frame two. Each column-shaped mounting sleeve has multiple limiting strips on the side opposite to the frame two. The frame two has sliding grooves that match the limiting strips. A handle two is fixedly provided on one side of the column-shaped mounting sleeve for easy pulling by the user. The handle two has an installation hole three inside. A fan-shaped locking block two is movably locked inside the installation hole three. The column-shaped mounting sleeve has an opening to facilitate the passage of the fan-shaped locking block two and the fan-shaped locking block one. A compression spring three is provided on one side of the fan-shaped locking block two. The two ends of the compression spring three are fixedly connected to the inner wall of the installation hole three and the side wall of the fan-shaped locking block two, respectively.

[0013] Preferably, multiple sleeves are rotatably mounted on the main frame via the rotating assembly. A cylindrical insert is rotatably connected to the bottom of the backrest. Multiple locking blocks are fixedly mounted on the bottom of the cylindrical insert. The sleeve has a splicing assembly two for fixing the backrest inside. The splicing assembly two includes multiple L-shaped insertion slots inside the sleeve that match the locking blocks. The ends of the L-shaped insertion slots are connected to locking slots. A compression spring four is fixedly abutted against one side of the locking slot. A push plate for pushing the locking blocks is fixedly connected to the end of the compression spring four away from the locking slot. A limiting block matching the side of the push plate is fixedly mounted on one side of the locking slot. The outer end faces of the push plate and the limiting block are flush with the inner sidewall of the L-shaped insertion slot.

[0014] Preferably, the sleeve has multiple mounting holes four that communicate with the snap-fit ​​groove inside. A compression spring five is fixedly installed inside the mounting hole four. An L-shaped limiting block that restricts the position of the push plate is fixedly installed at one end of the compression spring five near the snap-fit ​​groove. A fan-shaped locking block three that cooperates with the locking block is fixedly installed on the L-shaped limiting block.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0017] 1. The present invention provides a multifunctional foldable sofa. Through the design of the rotating component, it is convenient for users to adjust the armrests on both sides of the sofa according to different usage needs, thereby expanding the actual space that the sofa can lie on and improving the actual use effect of the sofa.

[0018] 2. The multifunctional foldable sofa provided by this utility model, through the design of the splicing component one, allows users to splice or disassemble the sofa according to different usage needs, transforming the sofa into a sofa or a sofa stool. Thus, users do not need to have multiple chairs at home. They only need to keep the sofa in the form of a sofa stool in daily life to meet their needs for reading, resting or working. When users need to lie down to watch TV or have other usage needs, they only need to reassemble the sofa stool into a sofa to meet their lying needs, thereby effectively reducing the limitations of using the sofa.

[0019] 3. The multifunctional foldable sofa provided by this utility model, through the design of the splicing component two, allows the user to simply remove multiple backrests inserted on one side of the main frame when entertaining guests, and rotate the sleeves on the main frame so that they are parallel to the bearing surface of the main frame. Then, the user inserts the extension frame into the sleeves in sequence for fixation, which further expands the actual space where the sofa can be used for lying down. This avoids unnecessary injuries to the body caused by guests falling off the sofa due to their unconscious turning over while in deep sleep, effectively improving the practicality of this multifunctional foldable sofa. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the axial view structure of the sofa in Embodiment 1 of this utility model;

[0022] Figure 2 This is an axial view structural diagram of the sofa in a reclining state in Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the rotating component on the main frame in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the axial structure of the rotating component in Embodiment 1 of this utility model;

[0025] Figure 5 This is a partial enlarged view of the rotating component in Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the axial structure of the sofa in Embodiment 2 of this utility model;

[0027] Figure 7 This is an axial view structural diagram of the sofa in a reclining state in Embodiment 2 of this utility model;

[0028] Figure 8 This is a schematic diagram of the installation structure of the splicing component one on the main frame in Embodiment 2 of this utility model;

[0029] Figure 9 This is a cross-sectional view of the splicing component in Embodiment 2 of this utility model;

[0030] Figure 10 This is an axial view of the sofa disassembled into a sofa stool in Embodiment 2 of this utility model;

[0031] Figure 11 This is a schematic diagram of the reclining structure of the main frame in the state of being connected to the backrest in Embodiment 3 of this utility model;

[0032] Figure 12 This is an axial view of the cylindrical insert, locking block, and sleeve in Embodiment 3 of this utility model.

[0033] Figure 13 This is a schematic diagram of the axial view of the card block and the fan-shaped card block under the four-pronged compression state in Embodiment 3 of this utility model;

[0034] Figure 14 This is an axial view of the push plate pressing against the card block in Embodiment 3 of this utility model.

[0035] Figure 15 This is an axial view structural diagram of the extended frame and the main frame after being spliced ​​together and unfolded in Embodiment 3 of this utility model.

[0036] In the diagram: 1. Main frame; 2. Armrest 1; 3. Backrest; 4. Mounting block; 5. Sleeve; 6. Limiting rod; 7. Positioning rod; 8. Mounting hole 1; 9. Compression spring 1; 10. Column positioning block; 11. Positioning recess; 12. Handle 1; 13. Frame 1; 14. Frame 2; 15. Armrest 2; 16. Reinforcing strip; 17. Groove; 18. Column splicing block; 19. Insertion hole; 20. Mounting hole 2; 21. Fan-shaped locking block 1; 22. Compression Spring II; 23. Column-shaped Mounting Sleeve; 24. Limiting Strip; 25. Slide Groove; 26. Handle II; 27. Mounting Hole III; 28. Fan-shaped Block II; 29. ​​Compression Spring III; 31. Column-shaped Insert Block; 32. Block; 33. L-shaped Insertion Groove; 34. Snap-fit ​​Groove; 35. Compression Spring IV; 36. Push Plate; 37. Limiting Block; 38. Mounting Hole IV; 39. Compression Spring V; 40. L-shaped Limiting Block; 41. Fan-shaped Block III. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] Example 1

[0039] Reference Figure 1-5 A multifunctional foldable sofa includes a main frame 1, armrests 2, and backrests 3. Multiple armrests 2 are provided on both sides of the main frame 1. Mounting blocks 4 are fixedly installed on the main frame 1 to facilitate the installation of the armrests 2. Rotating components are provided on the armrests 2 to facilitate cooperation with the mounting blocks 4. Multiple backrests 3 are provided on one side of the main frame 1. Sleeves 5 are fixedly installed on the main frame 1 to facilitate the installation of multiple backrests 3. The backrests 3 are inserted into the main frame 1 through the sleeves 5. Specifically, in this invention, the design of the rotating components allows users to adjust the armrests on both sides of the sofa according to different usage needs, thereby expanding the actual reclining space of the sofa. Furthermore, by removing the backrests 3, the reclining space of the sofa can be further expanded, effectively improving the actual usability of the sofa.

[0040] Reference Figure 2-5 The handrail 2 is rotatably mounted on the mounting block 4. A limiting rod 6 is fixedly mounted on the main frame 1 to restrict the rotation position of the handrail 2. A positioning rod 7 is movably mounted inside the handrail 2. The handrail 2 has a mounting hole 8 that matches the positioning rod 7. A compression spring 9 is sleeved on the outside of the positioning rod 7. The two ends of the compression spring 9 abut against the inner wall of the mounting hole 8 and the side wall of the positioning rod 7, respectively. Multiple columnar positioning blocks 10 are fixedly mounted on the end of the positioning rod 7 near the mounting block 4. Multiple positioning recesses 11 that match the columnar positioning blocks 10 are provided on the mounting block 4. A handle 12 that is easy for the user to pull is fixedly mounted on the end of the positioning rod 7 away from the mounting block 4. The handle 12 extends to the handrail 2 through the mounting hole 8. Specifically, in this utility model, when it is necessary to expand the actual space where the sofa can be reclined, the user only needs to hold the multiple handles 12 on the armrest 2 with one hand, and then gradually tighten the grip, so that the positioning rod 7 connected to the two handles 12 moves relative to each other. During this process, the multiple columnar positioning blocks 10 fixed at the end of the positioning rod 7 gradually disengage from the positioning recess 11. After the columnar positioning blocks 10 are completely disengaged from the positioning recess 11, the user can rotate the armrest 2 to make it abut against the limiting rod 6, and then release the gripped handle 12. The positioning rod 7 will then be driven by the compression spring 9 to insert the columnar positioning blocks 10 into the positioning recess 11, thus completing the fixation of the armrest 2 after adjustment.

[0041] It should be noted that in this utility model, the cylindrical positioning block 10 has a tapered design that is narrow at the front and wide at the back. This design allows the cylindrical positioning block 10 to be inserted into the positioning recess 11 more smoothly, effectively improving the smoothness of the use of the rotating component.

[0042] Example 2

[0043] This embodiment is a further optimization based on Embodiment 1. Most existing sofas are one-piece designs. For small apartments, sofas occupy a lot of space and are inconvenient to move. Therefore, sofas are mostly fixed in a certain position in the living room. However, since sofas are inconvenient to move, people often need to have multiple chairs at home to meet their daily needs for reading, resting or working. The availability of multiple chairs further reduces the usable space of small apartments, resulting in greater restrictions on the use of sofas.

[0044] Reference Figure 6-10The main frame 1 includes frame one 13 and frame two 14. A handrail two 15 is connected to the opposite side of frame one 13 and frame two 14 via a rotating assembly. Both frame one 13 and frame two 14 are provided with reinforcing strips 16 to strengthen their respective strengths. Multiple reinforcing strips 16 have grooves 17 to facilitate the rotation of the handrail two 15. A splicing component one is provided at the joint between frame one 13 and frame two 14 to facilitate user assembly. The splicing component one includes components fixedly mounted on frame one 13... The frame 14 has multiple column-shaped splicing blocks 18 at one end, and insertion holes 19 are provided on the frame 14 to facilitate the insertion of the column-shaped splicing blocks 18. The column-shaped splicing blocks 18 have mounting holes 20 inside, and a sector-shaped locking block 21 is movably secured inside the mounting hole 20. A compression spring 22 is provided on one side of the sector-shaped locking block 21, and both ends of the compression spring 22 are fixedly connected to the inner wall of the mounting hole 20 and the side wall of the sector-shaped locking block 21, respectively. Specifically, in this utility model, the design of the splicing component 1 facilitates the user to... Depending on the user's needs, the sofa can be assembled or disassembled to transform it into a sofa or a sofa stool. This eliminates the need for users to have multiple chairs at home; the sofa can be used as a sofa stool in daily life to meet their needs for reading, resting, or working. When users need to lie down to watch TV or have other needs, the sofa stool can be reassembled into a sofa to meet their reclining needs, effectively reducing the limitations of sofa use. The design of the rotating component and armrest 15 allows for easy adjustment of the position of the armrest 15 on the main frame 1 after the sofa is disassembled into a sofa stool. This ensures that the armrest 15 is fixed perpendicular to the sofa stool, supporting the arms of the person sitting on the sofa stool, reducing shoulder and arm pressure, alleviating fatigue, and enhancing comfort. The design of the reinforcing strip 16 and groove 17 effectively improves the support strength of the sofa stool while ensuring the normal operation of the rotating component, thus enhancing the actual use effect of the device.

[0045] Reference Figure 8-10The splicing component one also includes multiple column-shaped mounting sleeves 23 that are slidably fitted onto frame two 14. Multiple limiting strips 24 are provided on the side of the column-shaped mounting sleeve 23 opposite to frame two 14. Frame two 14 has sliding grooves 25 that match the limiting strips 24. A handle two 26 is fixedly provided on one side of the column-shaped mounting sleeve 23 for easy pulling by the user. A mounting hole three 27 is opened inside the handle two 26. A fan-shaped locking block two 28 is movably engaged inside the mounting hole three 27. An opening is provided on the column-shaped mounting sleeve 23 to facilitate the passage of the fan-shaped locking block two 28 and the fan-shaped locking block one 21. A compression spring three 29 is provided on one side of the fan-shaped locking block two 28. The two ends of the compression spring three 29 are fixedly connected to the inner wall of the mounting hole three 27 and the side wall of the fan-shaped locking block two 28, respectively. Specifically, in this utility model, when it is necessary to disassemble the sofa into sofas... When disassembling the sofa, simply pull the handles 26 on both sides of frame 214 to move the column mounting sleeve 23 on frame 214, causing the fan-shaped latch 28 to gradually move towards the fan-shaped latch 1 21. After the fan-shaped latch 28 aligns with the opening on the column mounting sleeve 23, the fan-shaped latch 28 will press against the fan-shaped latch 1 21 under the action of the compression spring 3 29, causing the fan-shaped latch 1 21 to retract into the column splicing block 18. Then, pull out the column splicing block 18 fixed on frame 13 from the insertion hole 19, separating frame 13 from frame 214. Then, rotate the armrest 2 15 on the opposite side of frame 13 and frame 214 using the rotating component, making it perpendicular to the bearing surface of the sofa stool. Then, fix the armrest 2 15 after adjusting its position to complete the disassembly of the sofa.

[0046] When it is necessary to reassemble the sofa stool into a sofa, simply rotate the armrest 15, which is located on the opposite side of frame 13 and frame 14, using the rotating component to reset it to be parallel to the bearing surface of the sofa stool. Then, the user pulls the handle 26 on both sides of frame 14 to move the fan-shaped locking block 28 back to its initial position. Then, the column-shaped splicing block 18, which is fixed at the end of frame 13, is reinserted into the socket 19. During this process, the fan-shaped locking block 21 will retract into the column-shaped splicing block 18 under the pressure of the inner wall of the socket 19. After the column-shaped splicing block 18 abuts against the inner wall of the socket 19, the fan-shaped locking block 21 will be exposed from the opening on one side of the socket 19 under the action of the compression spring 22 and locked in the socket 19, thus assembling the sofa.

[0047] It should be noted that in this utility model, the size of the second sector-shaped locking block 28 is slightly smaller than that of the first sector-shaped locking block 21, so that the second sector-shaped locking block 28 can move normally within the opening and the second mounting hole 20, ensuring the normal use of the splicing component 1. Furthermore, the arc surfaces of the first sector-shaped locking block 21 and the second sector-shaped locking block 28 are designed in the same direction, thereby enabling the first sector-shaped locking block 21 to be inserted into the insertion hole 19 and the second sector-shaped locking block 28 to be disengaged from the insertion hole 19, allowing the column-shaped mounting sleeve 23 to be reset. On the other hand, the elastic force of the third compression spring 29 is much greater than that of the second compression spring 22. Through this design, the second sector-shaped locking block 28 can properly compress the first sector-shaped locking block 21, allowing the first sector-shaped locking block 21 to retract normally into the column-shaped splicing block 18, thus ensuring the normal use of the splicing component 1.

[0048] Example 3

[0049] This embodiment is a further optimization based on embodiment two. Existing small-apartment families generally do not have bedrooms for temporarily receiving guests due to the small size of the house. If guests stay out too late at home and it is inconvenient for them to go home, they can only stay overnight on the sofa in the living room. However, the sofa can only provide a limited space for lying down. If guests unconsciously turn over while lying down on the sofa, they are very likely to fall off the sofa, causing unnecessary injury to their bodies and not providing them with a good rest.

[0050] Reference Figure 11-15 Multiple sleeves 5 are rotatably mounted on the main frame 1 via a rotating assembly. Multiple locking blocks 32 are fixedly mounted on the bottom of the backrest 3. The sleeve 5 has a splicing assembly 2 for fixing the backrest 3 inside. The splicing assembly 2 includes multiple L-shaped insertion slots 33 that match the locking blocks 32 inside the sleeve 5. The ends of the L-shaped insertion slots 33 are connected to locking slots 34. A compression spring 4 35 is fixedly abutted on one side of the locking slot 34. A push plate 36 that pushes the locking blocks 32 is fixedly connected to the end of the compression spring 4 35 away from the locking slot 34. A limiting block 37 that matches the side of the push plate 36 is fixedly mounted on one side of the locking slot 34. The outer end faces of the push plate 36 and the limiting block 37 are flush with the inner side wall of the L-shaped insertion slot 33.

[0051] The sleeve 5 has multiple mounting holes 38 that communicate with the snap-fit ​​groove 34. A compression spring 39 is fixedly installed inside each mounting hole 38. An L-shaped limiting block 40 is fixedly installed at one end of the compression spring 39 near the snap-fit ​​groove 34 to restrict the position of the push plate 36. A fan-shaped locking block 41 that cooperates with the locking block 32 is fixedly installed on the L-shaped limiting block 40. Specifically, in this utility model, through the design of the splicing component two, when entertaining guests, the user only needs to remove the multiple backrests 3 inserted on one side of the main frame 1 and rotate them to the main body. The sleeve 5 on the frame 1 is parallel to the bearing surface of the main frame 1. Then, the user inserts the extension frame into the sleeve 5 in sequence for fixation, which can further expand the actual space where the sofa can be reclined. This avoids unnecessary injury to the body caused by guests falling off the sofa due to unconscious turning over during deep sleep, effectively improving the practicality of this multi-functional foldable sofa. Through the design of the limiting block 37, the movement position of the card block 32 is restricted, so that the card block 32 can move precisely to be aligned with the L-shaped insertion slot 33, thereby ensuring the normal operation of the splicing component two.

[0052] It should be noted that in this utility model, the bottom of the extension frame and the backrest 3 adopt the same structural design. This design enables the extension frame to be properly spliced ​​with the sleeve 5, thereby ensuring the normal use of the splicing component two. In addition, in order to improve the smoothness of the cooperation between the locking block 32 and the splicing component two, the corners of the locking block 32 are rounded. This design avoids unnecessary jamming of the locking block 32 in the sleeve 5 and improves the smoothness of the use of the splicing component two.

[0053] When the sofa needs to be assembled into a sofa bed, the user simply lifts the backrest 3, which is inserted into the sleeve 5, upwards. This causes the locking block 32 to press against the push plate 36, the compression spring 45, and the fan-shaped locking block 31. During this process, the L-shaped limiting block 40 gradually retracts into the mounting hole 48 under the action of the fan-shaped locking block 31. When the locking block 32 abuts against the limiting block 37, the columnar insert 31 at the bottom of the backrest 3 is rotated clockwise, causing the locking block 32 to move along the L-shaped insertion groove 33. During this process, the L-shaped limiting block 40 pops outwards under the action of the compression spring 59, restricting the position of the push plate 36. When the locking block 32 abuts against the side wall of the L-shaped insertion groove 33, the backrest 3 is pulled out from the sleeve 5, and the backrest 3 can be removed from the main frame 1. Then, the extension frame that needs to be assembled onto the main frame 1 can be attached. Insert into sleeve 5. At this time, the column-shaped insert 31 and the locking block 32, which are rotatably connected at the bottom of the extension frame, are inserted into sleeve 5 along the L-shaped insertion groove 33. When the locking block 32 is placed at the bottom of the L-shaped insertion groove 33, rotate the column-shaped insert 31 counterclockwise so that the locking block 32 moves along the L-shaped insertion groove 33 to the locking groove 34 and squeezes the fan-shaped locking block 41. The fan-shaped locking block 41 drives the L-shaped limiting block 40 to retract into the mounting hole 38 and gradually separates from the front end face of the push plate 36. After the L-shaped limiting block 40 is completely separated from the push plate 36, the push plate 36 will be driven by the compression spring 35 to move the locking block 32 to one side of the locking groove 34 until the locking block 32 fits against the inner wall of the locking groove 34. This completes the splicing of the extension frame and the main frame 1, so that the sofa can be extended into a sofa bed so that guests can rest better.

[0054] It should be noted that, in order to more intuitively illustrate the composition and structure of the sofa, the above embodiments only draw and describe the frame diagram of the sofa. In actual production and use, sofa cushions can be set on the frame of the sofa to improve the comfort of the user.

[0055] The usage process of the multifunctional foldable sofa provided by this utility model is as follows:

[0056] When it is necessary to expand the actual reclining space of the sofa, the user only needs to hold the multiple handles 12 on the armrest 2 with one hand, and then gradually tighten the grip, so that the positioning rod 7 connected by the two handles 12 moves relative to each other. During this process, the multiple columnar positioning blocks 10 fixed at the end of the positioning rod 7 gradually disengage from the positioning recess 11. After the columnar positioning blocks 10 are completely disengaged from the positioning recess 11, the user can rotate the armrest 2 to make it abut against the limiting rod 6, and then release the gripped handle 12. The positioning rod 7 will then be driven by the compression spring 9 to drive the columnar positioning blocks 10 into the positioning recess 11, thus completing the fixation of the armrest 2 after adjustment.

[0057] When it is necessary to disassemble the sofa into a sofa stool, simply pull the handles 26 on both sides of the frame 2 14 to move the column mounting sleeve 23 on the frame 2 14, so that the fan-shaped latch 28 gradually moves towards the fan-shaped latch 1 21. After the fan-shaped latch 28 is aligned with the opening on the column mounting sleeve 23, the fan-shaped latch 28 will be squeezed by the compression spring 3 29, so that the fan-shaped latch 1 21 retracts into the column splicing block 18. Then, the column splicing block 18 fixed on the frame 1 13 is pulled out from the insertion hole 19, so that the frame 1 13 is separated from the frame 2 14. Then, the armrest 2 15 set on the opposite side of the frame 1 13 and the frame 2 14 is rotated by the rotating component so that it is perpendicular to the bearing surface of the sofa stool. Then, the armrest 2 15 after adjustment is fixed to complete the disassembly of the sofa.

[0058] When it is necessary to reassemble the sofa stool into a sofa, simply rotate the armrest 15, which is located on the opposite side of frame 13 and frame 14, using the rotating component to reset it to be parallel to the bearing surface of the sofa stool. Then, the user pulls the handle 26 on both sides of frame 14 to move the fan-shaped locking block 28 back to its initial position. Then, the column-shaped splicing block 18, which is fixed at the end of frame 13, is reinserted into the socket 19. During this process, the fan-shaped locking block 21 will retract into the column-shaped splicing block 18 under the pressure of the inner wall of the socket 19. After the column-shaped splicing block 18 abuts against the inner wall of the socket 19, the fan-shaped locking block 21 will be exposed from the opening on one side of the socket 19 under the action of the compression spring 22 and locked in the socket 19, thus assembling the sofa.

[0059] When the sofa needs to be assembled into a sofa bed, the user simply lifts the backrest 3, which is inserted into the sleeve 5, upwards. This causes the locking block 32 to press against the push plate 36, the compression spring 45, and the fan-shaped locking block 31. During this process, the L-shaped limiting block 40 gradually retracts into the mounting hole 48 under the action of the fan-shaped locking block 31. When the locking block 32 abuts against the limiting block 37, the columnar insert 31 at the bottom of the backrest 3 is rotated clockwise, causing the locking block 32 to move along the L-shaped insertion groove 33. During this process, the L-shaped limiting block 40 pops outwards under the action of the compression spring 59, restricting the position of the push plate 36. When the locking block 32 abuts against the side wall of the L-shaped insertion groove 33, the backrest 3 is pulled out from the sleeve 5, and the backrest 3 can be removed from the main frame 1. Then, the extension frame that needs to be assembled onto the main frame 1 can be attached. Insert the sleeve 5. At this time, the columnar insert 31 and the locking block 32, which are rotatably connected at the bottom of the extension frame, are inserted into the sleeve 5 along the L-shaped insertion groove 33. When the locking block 32 is placed at the bottom of the L-shaped insertion groove 33, rotate the columnar insert 31 counterclockwise so that the locking block 32 moves along the L-shaped insertion groove 33 to the locking groove 34 and squeezes the fan-shaped locking block 41. The fan-shaped locking block 41 drives the L-shaped limiting block 40 to retract into the mounting hole 38 and gradually separates from the front end face of the push plate 36. After the L-shaped limiting block 40 is completely separated from the push plate 36, the push plate 36 will be driven by the compression spring 35 to move the locking block 32 to one side of the locking groove 34 until the locking block 32 fits against the inner wall of the locking groove 34. This completes the splicing of the extension frame and the main frame 1, so that the sofa can be extended into a sofa bed so that guests can rest better.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional foldable sofa, comprising a main frame (1), armrests (2), and a backrest (3), characterized in that, The armrests (2) are provided in multiple ways and are located on both sides of the main frame (1). The main frame (1) is fixedly provided with mounting blocks (4) to facilitate the installation of the armrests (2). The armrests (2) are provided with rotating components to facilitate cooperation with the mounting blocks (4). The backrests (3) are provided in multiple ways and are located on one side of the main frame (1). The main frame (1) is fixedly provided with sleeves (5) to facilitate the placement of the multiple backrests (3). The backrests (3) are inserted into the main frame (1) through the sleeves (5).

2. The multifunctional foldable sofa according to claim 1, characterized in that, The handrail 1 (2) is rotatably mounted on the mounting block (4). A limiting rod (6) is fixedly mounted on the main frame (1) to restrict the rotation position of the handrail 1 (2). A positioning rod (7) is movably mounted inside the handrail 1 (2). The handrail 1 (2) is provided with a mounting hole 1 (8) that matches the positioning rod (7). A compression spring 1 (9) is sleeved on the outside of the positioning rod (7). The two ends of the compression spring 1 (9) are respectively connected to the inner wall of the mounting hole 1 (8). The positioning rod (7) abuts against the side wall of the positioning rod (7). A plurality of column-shaped positioning blocks (10) are fixedly provided at one end of the positioning rod (7) near the mounting block (4). A plurality of positioning recesses (11) matching the column-shaped positioning blocks (10) are provided on the mounting block (4). A handle (12) is fixedly provided at one end of the positioning rod (7) away from the mounting block (4) for easy pulling by the user. The handle (12) extends to the outside of the armrest (2) through the mounting hole (8).

3. A multifunctional foldable sofa according to claim 1, characterized in that, The main frame (1) includes a frame one (13) and a frame two (14). A handrail two (15) is connected to the opposite side of the frame one (13) and the frame two (14) via the rotating assembly. Both the frame one (13) and the frame two (14) are provided with reinforcing strips (16) to strengthen their respective strengths. Multiple reinforcing strips (16) are provided with grooves (17) to facilitate the rotation of the handrail two (15). A splicing assembly one is provided at the joint between the frame one (13) and the frame two (14) to facilitate user assembly. The first component includes a plurality of column-shaped splicing blocks (18) fixedly disposed at one end of the first frame (13). The second frame (14) is provided with insertion holes (19) for easy insertion of the column-shaped splicing blocks (18). The inside of the column-shaped splicing blocks (18) is provided with a second mounting hole (20). The inside of the second mounting hole (20) is provided with a fan-shaped locking block (21). One side of the fan-shaped locking block (21) is provided with a compression spring (22). The two ends of the compression spring (22) are fixedly connected to the inner wall of the second mounting hole (20) and the side wall of the fan-shaped locking block (21), respectively.

4. A multifunctional foldable sofa according to claim 3, characterized in that, The first splicing component also includes multiple column-shaped mounting sleeves (23) slidably fitted onto the second frame (14). Each column-shaped mounting sleeve (23) has multiple limiting strips (24) on its side opposite to the second frame (14). The second frame (14) has sliding grooves (25) that match the limiting strips (24). A second handle (26) is fixedly provided on one side of each column-shaped mounting sleeve (23) for easy pulling by the user. The interior of the second handle (26) has... There is a mounting hole three (27), and a fan-shaped locking block two (28) is provided inside the mounting hole three (27). The column-shaped mounting sleeve (23) has an opening to facilitate the passage of the fan-shaped locking block two (28) and the fan-shaped locking block one (21). A compression spring three (29) is provided on one side of the fan-shaped locking block two (28). The two ends of the compression spring three (29) are fixedly connected to the inner wall of the mounting hole three (27) and the side wall of the fan-shaped locking block two (28), respectively.

5. A multifunctional foldable sofa according to claim 1, characterized in that, Multiple sleeves (5) are rotatably mounted on the main frame (1) via the rotating assembly. A cylindrical insert (31) is rotatably connected to the bottom of the backrest (3). Multiple locking blocks (32) are fixedly mounted on the bottom of the cylindrical insert (31). A second splicing assembly for fixing the backrest (3) is provided inside the sleeve (5). The second splicing assembly includes multiple L-shaped insertion slots (33) inside the sleeve (5) that match the locking blocks (32). The L-shaped insertion slots (33)... The end is connected to a snap-fit ​​groove (34), and a compression spring four (35) is fixedly abutted against one side of the snap-fit ​​groove (34). The end of the compression spring four (35) away from the snap-fit ​​groove (34) is fixedly connected to a push plate (36) that pushes the snap-fit ​​block (32). A limiting block (37) matching the side of the push plate (36) is fixedly provided on one side of the snap-fit ​​groove (34). The outer end faces of the push plate (36) and the limiting block (37) are flush with the inner sidewall of the L-shaped insertion groove (33).

6. A multifunctional foldable sofa according to claim 5, characterized in that, The sleeve (5) has multiple mounting holes (38) that communicate with the snap-fit ​​groove (34). A compression spring (39) is fixedly installed inside the mounting hole (38). An L-shaped limiting block (40) that restricts the position of the push plate (36) is fixedly installed at one end of the compression spring (39) near the snap-fit ​​groove (34). A fan-shaped locking block (41) that cooperates with the locking block (32) is fixedly installed on the L-shaped limiting block (40).

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