Monobloc sofa frame structure assembly

By designing a single sofa frame structure component with an unfoldable storage table and adjustable wheel height, the problems of lack of functional expansion and heavy weight of single sofas are solved, enabling easy movement and convenient use of the sofa.

CN224403249UActive Publication Date: 2026-06-26ANJI XINPENG HOME SUPPLIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANJI XINPENG HOME SUPPLIES CO LTD
Filing Date
2025-09-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing single sofa frame structure lacks functional expansion design, is inconvenient to use and heavy, resulting in a lot of physical effort when a single person moves it.

Method used

A single sofa frame structure component was designed, including a base frame, armrests, a retractable tabletop, a lifting assembly, and a wheel assembly. It features an unfoldable retractable tabletop and adjustable wheel height, making it convenient for both the tabletop and movement.

Benefits of technology

It enables easy movement and convenient use of the sofa, reducing the effort and time required for a single person to move it.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224403249U_ABST
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Abstract

The utility model provides a kind of monomer sofa frame structure assembly.The monomer sofa frame structure assembly includes: base frame, the left and right sides of the base frame are respectively fixedly connected with first handrail and second handrail, the upper portion of the second handrail is rotatably connected with closure cover, and the middle of the second handrail is provided with installation space.The utility model provides a kind of monomer sofa frame structure assembly, and the sofa frame structure is suitable for single person to live and use, and the storage type table plate is guided and lifted by lifting assembly, is rotated and stored by direction adjusting part, and is positioned and fixed by fixed part, so that it can be expanded and stored with simple operation steps;when it is desired to move the sofa to a more comfortable space position, adjust the walking wheel assembly until the walking wheel contacts the ground and props up the sofa, so that the sofa as a whole can be easily pushed, and after moving to the desired position, raise the walking wheel, which reduces the energy and time consumed in moving the sofa when living alone.
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Description

Technical Field

[0001] This utility model relates to the field of sofa technology, and in particular to a single sofa frame structure component. Background Technology

[0002] A single sofa is a type of sofa designed specifically for single-person use. Single sofas are usually smaller in size than multi-person sofas, taking up less space and making them suitable for smaller rooms or corners. They can provide a comfortable resting space for an individual without taking up too much indoor space. Single sofas come in a variety of styles to meet different decorating styles and personal preferences.

[0003] Existing sofa frame structures are usually made of solid wood or engineered wood. Solid wood frames often use hardwoods such as oak and beech, which have high strength and stability, and the whole structure is generally fixed and integrated.

[0004] However, this fixed, integrated structure lacks functional expansion design. When users need to work temporarily, place their laptops or drinks, they can only hold them or place them on their laps, which is not convenient. At the same time, even single sofas are quite heavy, and sometimes it takes a lot of physical effort to move them to a suitable position to increase the comfort of leisure and entertainment.

[0005] Therefore, it is necessary to provide a single-unit sofa frame structure component to solve the above-mentioned technical problems. Summary of the Invention

[0006] This utility model provides a single sofa frame structure component, which solves the problems of lack of functional expansion design, which sometimes causes inconvenience in use, and the large overall weight, which requires a lot of physical strength when a single person moves it.

[0007] To solve the above-mentioned technical problems, the present invention provides a single sofa frame structure component, comprising: a base frame, wherein a first armrest and a second armrest are fixedly connected to the left and right sides of the base frame respectively, a closed cover is rotatably connected to the upper part of the second armrest, an installation space is provided in the middle of the second armrest, a storage table and a lifting component are provided in the installation space, the lifting component is provided with a direction adjustment part and a fixing part for assisting the storage and unfolding of the storage table, bottom support feet are provided on the lower two sides of the base frame, a walking wheel assembly is provided on the bottom support feet, a hollow backrest is fixedly connected to the upper edge of the base frame, and a seat cushion, a backrest cushion and an armrest cushion are placed on the base frame, the backrest cushion is close to the hollow backrest, and the armrest cushion is close to the first armrest and the second armrest.

[0008] Preferably, the retractable tabletop includes a tabletop body and a movable base, the tabletop body and the movable base are rotatably connected, the back of the tabletop body is provided with a tension groove and multiple sets of equidistantly distributed weight-reducing grooves, and a limit support plate is fixedly connected to the back of the tabletop body.

[0009] Preferably, the lifting assembly includes guide rods and lifting seats. Two sets of guide rods are provided and symmetrically distributed on both sides of the installation space. The two sides of the lifting seats are slidably connected to the guide rods.

[0010] Preferably, the direction adjustment part includes a fixed rod, which is fixedly connected to the lifting seat. A rotating seat is rotatably connected to the fixed rod. A sliding groove is provided on the rotating seat. The moving seat is slidably connected to the sliding groove and rotatably connected to the fixed rod.

[0011] Preferably, the fixing part includes a U-shaped positioning plate, a positioning slot, and a fixing block. The U-shaped positioning plate and the positioning slot are respectively disposed on both sides of the rotating seat, and the fixing block is fixedly connected to the table body and its size corresponds to the positioning slot.

[0012] Preferably, the walking wheel assembly includes an outer baffle, a lifting screw, a connecting seat, and a base plate. The lifting screw passes through the bottom support foot and is rotatably connected to the bottom support foot and the base plate. A rotating shaft is rotatably connected to the connecting seat. A rotating wheel and a first bevel gear are fixedly connected to both ends of the rotating shaft, respectively. A second bevel gear is fixedly connected to the lifting screw, and the second bevel gear meshes with the first bevel gear.

[0013] Preferably, symmetrically distributed walking wheels are rotatably connected to the bottom of the base plate, symmetrically distributed guide rods are fixedly connected to the top of the base plate, a lifting adjustment plate is fixedly connected to the upper end of the guide rod, the upper end of the guide rod is slidably connected to the bottom support foot, and the lifting adjustment plate is threadedly connected to the lifting screw.

[0014] Compared with related technologies, the single-unit sofa frame structure component provided by this utility model has the following beneficial effects:

[0015] This utility model provides a single sofa frame structure component. The sofa frame structure is suitable for single-person use. The storage table is guided and raised by the lifting component, rotated and adjusted for storage by the direction adjustment part, and positioned and fixed by the fixing part, which can be easily unfolded and stored. When you want to move the sofa to a more comfortable space, adjust the walking wheel component until the walking wheel contacts the ground and supports the sofa, so that the whole sofa can be easily pushed. After moving to the desired position, raise the walking wheel again, which reduces the effort and time spent moving the sofa when using it for single-person use. Attached Figure Description

[0016] Figure 1A schematic diagram of a preferred embodiment of the single sofa frame structure component provided by this utility model. Figure 1 ;

[0017] Figure 2 A schematic diagram of a preferred embodiment of the single sofa frame structure component provided by this utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of the second handrail in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the storage table, lifting assembly, direction adjustment part, and fixing part in this utility model. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the structure of the storage table, lifting assembly, direction adjustment part, and fixing part in this utility model. Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the walking wheel assembly in this utility model.

[0022] The diagram shows the following components: 1. Base frame; 2. First armrest; 3. Second armrest; 4. Enclosed cover; 5. Installation space; 6. Retractable tabletop; 61. Tabletop body; 62. Movable seat; 63. Pulling groove; 64. Weight reduction groove; 65. Limiting support plate; 7. Lifting assembly; 71. Guide rod; 72. Lifting seat; 8. Direction adjustment part; 81. Fixed rod; 82. Rotating seat; 83. Sliding groove; 9. Fixed part; 91. U-shaped positioning plate; 92. 93. Positioning slot, 10. Fixing block, 11. Bottom support foot, 11. Walking wheel assembly, 111. Outer baffle, 112. Lifting screw, 113. Connecting seat, 114. Rotating shaft, 115. Rotating wheel, 116. First bevel gear, 117. Second bevel gear, 118. Base plate, 119. Walking wheel, 1110. Guide rod, 1111. Lifting adjustment plate, 12. Hollowed-out backrest panel, 13. Seat cushion, 14. Backrest cushion, 15. Armrest cushion. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of the single sofa frame structure component provided by this utility model. Figure 1 ;

[0025] Figure 2 A schematic diagram of a preferred embodiment of the single sofa frame structure component provided by this utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the internal structure of the second handrail in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the storage table, lifting assembly, direction adjustment part, and fixing part in this utility model. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the structure of the storage table, lifting assembly, direction adjustment part, and fixing part in this utility model. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the walking wheel assembly in this utility model.

[0030] The single sofa frame structure includes: a base frame 1, with a first armrest 2 and a second armrest 3 fixedly connected to the left and right sides of the base frame 1 respectively; a closed cover 4 is rotatably connected to the upper part of the second armrest 3; an installation space 5 is provided in the middle of the second armrest 3; a storage table 6 and a lifting component 7 are provided in the installation space 5; the lifting component 7 is provided with a direction adjustment part 8 and a fixing part 9 to assist in the storage and unfolding of the storage table 6; bottom support feet 10 are provided on the lower two sides of the base frame 1; a walking wheel assembly 11 is provided on the bottom support feet 10; a hollow backrest panel 12 is fixedly connected to the upper edge of the base frame 1; a seat cushion 13, a backrest cushion 14, and an armrest pad 15 are placed on the base frame 1; the backrest cushion 14 is close to the hollow backrest panel 12; and the armrest pad 15 is close to the first armrest 2 and the second armrest 3.

[0031] When using the retractable tabletop 6 on the side of the sofa frame, first open the closed cover 4, then use the lifting component 7 to extend the retractable tabletop 6 from the installation space 5, and then use the direction adjustment part 8 and the fixing part 9 to unfold and fix the tabletop; when moving the sofa, the user can push the sofa to move after adjusting the walking wheel component 11; after reaching the target position, the walking wheel component 11 can be retracted to allow the sofa to be stably placed on the ground again.

[0032] The retractable tabletop 6 includes a tabletop body 61 and a movable seat 62. The tabletop body 61 and the movable seat 62 are rotatably connected. The back of the tabletop body 61 is provided with a tension groove 63 and multiple sets of equidistantly distributed weight-reducing grooves 64. A limit support plate 65 is fixedly connected to the back of the tabletop body 61.

[0033] The rotating connection between the tabletop body 61 and the movable seat 62 allows the tabletop body 61 to be flexibly folded and stored in the installation space 5. The pull groove 63 provides a force point when unfolding or storing the tabletop body 61, making it easy to operate. The weight reduction groove 64 reduces the weight of the tabletop while ensuring structural strength. The limiting support plate 65 can limit and support the tabletop body 61 in conjunction with the second armrest 3 on the outside of the armrest pad 15 when it is unfolded and in use, reducing shaking and increasing stability during use.

[0034] The lifting assembly 7 includes guide rods 71 ​​and lifting seats 72. Two sets of guide rods 71 ​​are provided and symmetrically distributed on both sides of the installation space 5. The two sides of the lifting seats 72 are slidably connected to the guide rods 71.

[0035] The guide rod 71 guides the tabletop during the lifting and lowering of the lifting base 72, enabling the tabletop to be stored and unfolded within the installation space 5, improving the flexibility of the tabletop during use, and reducing the space it occupies.

[0036] The direction adjustment part 8 includes a fixed rod 81, which is fixedly connected to the lifting seat 72. A rotating seat 82 is rotatably connected to the fixed rod 81. A sliding groove 83 is provided on the rotating seat 82. The moving seat 62 is slidably connected to the sliding groove 83 and is rotatably connected to the fixed rod 81.

[0037] The rotating seat 82 is rotatably connected to the fixed rod 81, so that the rotating seat 82 can drive the storage table 6 to rotate around the fixed rod 81 through the moving seat 62, thereby unfolding the vertically stored table into a horizontal state for use; in the stored state, the moving seat 62 is located at the end of the sliding groove 83 away from the middle of the rotating seat 82, and after unfolding, the moving seat 62 is located at the end of the sliding groove 83 close to the middle of the rotating seat 82.

[0038] The fixing part 9 includes a U-shaped positioning plate 91, a positioning slot 92, and a fixing block 93. The U-shaped positioning plate 91 and the positioning slot 92 are respectively disposed on both sides of the rotating seat 82. The fixing block 93 is fixedly connected to the table body 61 and its size corresponds to the positioning slot 92.

[0039] When the retractable tabletop 6 is fully unfolded, the fixing block 93 is inserted into the positioning slot 92 to position and fix the tabletop body 61, increasing its stability during use; the U-shaped positioning plate 91 is used to limit the tabletop when it is folded up and stored, preventing it from shaking after storage.

[0040] The walking wheel assembly 11 includes an outer baffle 111, a lifting screw 112, a connecting seat 113, and a base plate 118. The lifting screw 112 passes through the bottom support foot 10 and is rotatably connected to the bottom support foot 10 and the base plate 118. A rotating shaft 114 is rotatably connected to the connecting seat 113. A rotating wheel 115 and a first bevel gear 116 are fixedly connected to both ends of the rotating shaft 114, respectively. A second bevel gear 117 is fixedly connected to the lifting screw 112, and the second bevel gear 117 meshes with the first bevel gear 116.

[0041] The outer baffle 111 can protect the internal structure of the walking wheel assembly 11 and prevent external debris from being rolled in. At the same time, the outer baffle 111 exposes the wheel 115 at the corresponding position. By rotating the wheel 115, the user can drive the rotating shaft 114 and the first bevel gear 116 to rotate. The first bevel gear 116 and the second bevel gear 117 mesh and drive each other, thereby driving the lifting screw 112 to rotate, thereby adjusting the height of the walking wheel.

[0042] Symmetrically distributed walking wheels 119 are rotatably connected to the bottom of the base plate 118, and symmetrically distributed guide rods 1110 are fixedly connected to the top of the base plate 118. A lifting adjustment plate 1111 is fixedly connected to the upper end of the guide rod 1110, and the upper end of the guide rod 1110 is slidably connected to the bottom support foot 10. The lifting adjustment plate 1111 is threadedly connected to the lifting screw 112.

[0043] The symmetrically distributed casters 119 allow the sofa to be pushed flexibly, making it easy for a single person to use without the need for strenuous manual handling. The guide rod 1110 prevents the base plate 118 from shifting during lifting and lowering. At the same time, the rotation of the lifting screw 112 is converted into the linear lifting and lowering motion of the lifting adjustment plate 1111, which in turn drives the guide rod 1110, the base plate 118, and the casters 119 to rise and fall. When the sofa is moved to the designated position, the casters 119 are raised so that the bottom support feet 10 contact the ground. When the sofa needs to be moved, the height of the casters 119 is lowered until they contact the ground to support the sofa and make it easier to push.

[0044] The working principle of the single sofa frame structure component provided by this utility model is as follows:

[0045] When using the retractable tabletop 6 on the side of the sofa frame, first open the closed cover 4, then use the lifting component 7 to extend the retractable tabletop 6 from the installation space 5, and then use the direction adjustment part 8 and the fixing part 9 to unfold and fix the tabletop; when moving the sofa, the user can push the sofa to move after adjusting the walking wheel component 11; after reaching the target position, the walking wheel component 11 can be retracted to allow the sofa to be stably placed on the ground again.

[0046] Compared with related technologies, the single-unit sofa frame structure component provided by this utility model has the following beneficial effects:

[0047] The sofa frame structure is suitable for single-person use. The storage tabletop 6 can be easily unfolded and stored by the guide lifting component 7, the rotation storage adjustment part 8, and the positioning and fixing part 9. When you want to move the sofa to a more comfortable space, adjust the walking wheel component 11 until the walking wheel 119 contacts the ground and supports the sofa, so that the whole sofa can be easily pushed. After moving it to the desired position, raise the walking wheel 119, which reduces the effort and time spent moving the sofa when using it for single-person use.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A single sofa frame structure assembly, characterized by, include: The base frame has a first armrest and a second armrest fixedly connected to its left and right sides, respectively. A closed cover is rotatably connected to the upper part of the second armrest. An installation space is provided in the middle of the second armrest, and a storage table and a lifting assembly are provided in the installation space. The lifting assembly is provided with a direction adjustment part and a fixing part to assist in the storage and unfolding of the storage table. Bottom support feet are provided on both sides of the lower part of the base frame, and a walking wheel assembly is provided on the bottom support feet. A hollow backrest is fixedly connected to the upper edge of the base frame. A seat cushion, a backrest cushion, and an armrest cushion are placed on the base frame. The backrest cushion is close to the hollow backrest panel, and the armrest cushion is close to the first armrest and the second armrest.

2. The single sofa frame structure assembly of claim 1, wherein, The retractable tabletop includes a tabletop body and a movable base. The tabletop body and the movable base are rotatably connected. The back of the tabletop body is provided with a tension groove and multiple sets of equidistantly distributed weight-reducing grooves. A limit support plate is fixedly connected to the back of the tabletop body.

3. The single sofa frame structure assembly of claim 2, wherein, The lifting assembly includes guide rods and lifting seats. Two sets of guide rods are provided and symmetrically distributed on both sides of the installation space. The two sides of the lifting seats are slidably connected to the guide rods.

4. The single sofa frame structure assembly of claim 3, wherein, The direction adjustment unit includes a fixed rod, which is fixedly connected to the lifting seat. A rotating seat is rotatably connected to the fixed rod. A sliding groove is provided on the rotating seat. The moving seat is slidably connected to the sliding groove and is rotatably connected to the fixed rod.

5. The single sofa frame structure assembly of claim 4, wherein, The fixing part includes a U-shaped positioning plate, a positioning slot and a fixing block. The U-shaped positioning plate and the positioning slot are respectively arranged on both sides of the rotating seat. The fixing block is fixedly connected to the table body and its size corresponds to the positioning slot.

6. The unit sofa frame structure assembly of claim 1, wherein, The walking wheel assembly includes an outer baffle, a lifting screw, a connecting seat, and a base plate. The lifting screw passes through the bottom support foot and is rotatably connected to the bottom support foot and the base plate. A rotating shaft is rotatably connected to the connecting seat. A rotating wheel and a first bevel gear are fixedly connected to both ends of the rotating shaft, respectively. A second bevel gear is fixedly connected to the lifting screw, and the second bevel gear meshes with the first bevel gear.

7. The single sofa frame structure component according to claim 6, characterized in that, Symmetrically distributed walking wheels are rotatably connected to the bottom of the base plate, and symmetrically distributed guide rods are fixedly connected to the top of the base plate. A lifting adjustment plate is fixedly connected to the upper end of the guide rod, and the upper end of the guide rod is slidably connected to the bottom support foot. The lifting adjustment plate is threadedly connected to the lifting screw.