Rapid assembling and positioning device for modularized frame of sofa
By combining the design of the base plate, guide components, opening and closing mechanism, rotating mechanism and lifting component, the positioning problem of the sofa modular frame during assembly is solved, realizing efficient and precise modular frame assembly, and improving assembly efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LIANTONG FURNITURE FITTNGS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-08
AI Technical Summary
The modular frame of the sofa is difficult to position precisely during assembly, resulting in low assembly efficiency and easy damage.
The design employs a combination of base plate, guide assembly, opening and closing mechanism, rotation mechanism and lifting assembly to achieve synchronous opening, closing, rotation and lifting movements of the sliding stage. With the addition of positioning and angle adjustment of the storage platform, the assembly process of the modular frame is simplified.
This improves the assembly precision and efficiency of the modular frame, reduces manual handling, avoids damage during assembly, and enhances the overall stability and quality of the sofa structure.
Smart Images

Figure CN224209913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sofa modular frame technology, specifically a sofa modular frame quick assembly and positioning device. Background Technology
[0002] Modular design is a very important design technique in product design. Modularization can change the single function of a product and the space utilization rate, and it can not only change the appearance of the product, but also substantially change the functional design of the product. This is especially common in furniture design. In particular, with the current trend of small-apartment homes, people's demand for modular furniture is increasing. They will pursue practicality and convenience, and it will become an indispensable part of future home life.
[0003] A typical sofa structure is manufactured in several modules, which are then assembled to form the overall sofa structure. However, due to the large weight of sofas, assembling them makes it difficult to move the sofa frame, affecting the positioning accuracy and making the sofa prone to damage after assembly. Therefore, we propose a rapid assembly and positioning device for modular sofa frames. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a rapid assembly and positioning device for a modular sofa frame, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick assembly and positioning device for a modular sofa frame, comprising: a base plate; guide components are provided on both sides of the top of the base plate, a sliding platform is slidably mounted above the guide components, and an opening and closing mechanism is provided at the center of the top of the base plate, the opening and closing mechanism being used for the synchronous opening and closing movement of the sliding platforms on both sides.
[0006] A rotating mechanism is provided at the top center of the sliding platform, and lifting components are provided on both sides of the top of the sliding platform. A storage platform is installed above the rotating mechanism. The rotating mechanism is used to drive the storage platform to rotate, and the lifting components are used to drive the storage platform to rise and fall. The modular sofa frame is placed on the storage platform.
[0007] Preferably, the bottom of the substrate is provided with a plurality of support legs, and the top of the substrate is provided with a plurality of through holes.
[0008] Preferably, the guiding component includes guide rails fixed on the outer walls of the top two sides of the substrate, and the bottom two sides of the sliding stage are provided with sliding grooves that are slidably connected to the guide rails.
[0009] Preferably, the opening and closing mechanism includes an active shaft inserted from below the base plate and connected to the top. A rotating disk is mounted on the top of the active shaft. A plurality of pins and bushings are provided on the top of the rotating disk. A linkage rod is connected to the pins and bushings. The linkage rod connects the rotating disk and the sliding table.
[0010] Preferably, the rotating mechanism includes a mounting groove disposed on the top of the sliding table, a driven gear disposed on one side of the inside of the mounting groove, and a driving gear disposed on the other side of the inside of the mounting groove. A sleeve is fixedly mounted on the top of the driven gear, an angle motor is disposed on the top of the driving gear, and a motor frame is disposed on the outside of the angle motor.
[0011] Preferably, a lifting rod is fixedly provided at the bottom of the shelf, and a slot is provided at the top of the sleeve, with the lifting rod inserted into the slot.
[0012] Preferably, the lifting assembly includes through slots on both sides of the top of the sliding table and several support frames fixedly installed on the top of the sliding table. A rocker arm is rotatably arranged above the support frame. A drive motor is fixedly installed on the top of the sliding table, and two gear transmission boxes are drivenly connected to the output shaft of the drive motor. A synchronous shaft is drivenly connected to one side of the gear transmission box, and several cams are fixedly arranged on the outside of the synchronous shaft.
[0013] Preferably, one end of the cam contacts the top outer surface of the rocker arm, both ends of the synchronous shaft are provided with bearing seats, and the top end of the rocker arm is provided with a rotating ball.
[0014] This utility model provides a quick assembly and positioning device for a modular sofa frame, which has the following advantages:
[0015] 1. The opening and closing mechanism adopted can realize the synchronous movement of two sliding platforms, realize the opening and closing of the sliding platforms, and drive the modular frame on the platform to move closer together, realize the splicing of the modular frame, and make it easier for people to position and use the modular frame assembly.
[0016] 2. The rotating mechanism used can drive the shelf to rotate at different angles, realizing the splicing and connection of the modular frame above the shelf at different angles, and realizing more flexible assembly and use of the modular frame;
[0017] 3. The lifting component can be used to raise and lower the platform, thereby raising and lowering the modular frame above it synchronously. This allows for better positioning of the modular frame during assembly, improves the accuracy of the assembly, avoids manual handling and assembly of the modular frame, and improves the efficiency and quality of the assembly process. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural view of a modular sofa frame quick assembly and positioning device according to the present invention.
[0019] Figure 2 This is a top view of the structure of a modular sofa frame quick assembly and positioning device according to the present invention;
[0020] Figure 3 This is a schematic diagram of the opening and closing mechanism of a quick assembly and positioning device for a modular sofa frame according to this utility model.
[0021] Figure 4 This is a schematic diagram of the rotating mechanism structure of a quick assembly and positioning device for a modular sofa frame according to the present invention;
[0022] Figure 5 This is a schematic diagram of the lifting component structure of a sofa modular frame quick assembly and positioning device according to the present invention;
[0023] Figure 6 This is a schematic diagram of the shelf structure of a sofa modular frame quick assembly and positioning device according to the present invention.
[0024] 1. Base plate; 2. Guide assembly; 21. Guide rail; 22. Slide groove; 3. Opening and closing mechanism; 31. Rotating disk; 32. Bushing; 33. Linkage rod; 34. Drive shaft; 4. Sliding stage; 5. Display platform; 51. Lifting rod; 6. Rotating mechanism; 60. Mounting slot; 61. Driven gear; 62. Sleeve; 63. Drive gear; 64. Angle motor; 65. Motor frame; 7. Lifting assembly; 71. Through slot; 72. Support frame; 73. Tilter; 74. Bearing seat; 75. Synchronous shaft; 76. Cam; 77. Drive motor; 78. Gearbox. Detailed Implementation
[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0026] like Figures 1-6 As shown, this utility model provides a technical solution: a modular sofa frame quick assembly and positioning device, comprising: a base plate 1; guide components 2 are provided on both sides of the top of the base plate 1, a sliding platform 4 is slidably installed above the guide components 2, an opening and closing mechanism 3 is provided at the center of the top of the base plate 1, the opening and closing mechanism 3 is used at least for the synchronous opening and closing movement of the sliding platforms 4 on both sides; a rotating mechanism 6 is provided in the middle of the upper part of the sliding platform 4, lifting components 7 are provided on both sides of the top of the sliding platform 4, a shelf 5 is installed above the rotating mechanism 6, the rotating mechanism 6 is used at least for driving the shelf 5 to rotate, the lifting components 7 are used at least for driving the shelf 5 to rise and fall, and the modular sofa frame is placed on the shelf 5.
[0027] In this embodiment, the substrate includes: a substrate 1; the bottom of the substrate 1 is provided with several support legs (not shown in the figure), which can be used to raise the substrate 1 to a stable height; the top of the substrate 1 is provided with several through holes, which can be used to reduce the weight and material usage of the substrate. Guide components 2 are provided on both sides of the top of the substrate 1, and a sliding stage 4 is slidably mounted on the top of the guide components 2; the guide components 2 include guide rails 21 fixed on the outer walls of the top two sides of the substrate 1, and the bottom two sides of the sliding stage 4 are provided with sliding grooves 22 slidably connected to the guide rails 21. When the sliding stage 4 moves, it slides on the guide rails 21 using the sliding grooves 22 below the sliding stage 4, thereby guiding the movement of the sliding stage 4 and ensuring the stability of the movement of the sliding stage 4.
[0028] In this embodiment, an opening and closing mechanism 3 is provided at the top center of the substrate 1. The opening and closing mechanism 3 is used for the synchronous opening and closing movement of the sliding stages 4 on both sides. The opening and closing mechanism 3 includes an active shaft 34 inserted from the bottom of the substrate 1 and connected to the top. A motor is provided at the bottom end of the active shaft 34, which drives the active shaft 34 to rotate. A rotating disk 31 is installed at the top end of the active shaft 34. Several pins and bushings 32 are provided at the top of the rotating disk 31. A linkage rod 33 is connected to the pins and bushings 32. The linkage rod 33 is connected between the rotating disk 31 and the sliding stage 4. The active shaft 34 can drive the rotating disk 31 to rotate. The rotating disk 31 drives the pins and bushings 32 on both sides to rotate, thereby driving the linkage rod 33 to move. This allows the two sliding stages 4 to perform synchronous opening and closing movements, realizing the assembly and use of the modular frame above the platform 5.
[0029] In this embodiment, a rotating mechanism 6 is provided at the upper center of the sliding table 4. The rotating mechanism 6 includes a mounting groove 60 on the top of the sliding table 4. A driven gear 61 is provided on one side of the mounting groove 60, and a driving gear 63 is provided on the other side of the mounting groove 60. A sleeve 62 is fixedly installed on the top of the driven gear 61, and an angle motor 64 is provided on the top of the driving gear 63. A motor frame 65 is provided on the outside of the angle motor 64. A lifting rod 51 is fixedly provided at the bottom of the storage platform 5. A slot is provided on the top of the sleeve 62, and the lifting rod 51 is inserted into the slot. When the modular frame is placed on the storage platform 5, the angle motor 64 can be activated according to the assembly angle of the modular frame, causing the driving gear 63 to rotate, thereby driving the driven gear 61 to rotate inside the mounting groove 60. The driven gear 61 and the sleeve 62 rotate synchronously, and the sleeve 62 drives the storage platform 5 to rotate synchronously, thereby adjusting the assembly angle of the modular frame.
[0030] In this embodiment, lifting components 7 are provided on both sides of the top of the sliding platform 4, a shelf 5 is installed above the rotating mechanism 6, a modular frame is placed on the shelf 5, the rotating mechanism 6 is used to drive the shelf 5 to rotate, the lifting components 7 are used to drive the shelf 5 to rise and fall, and the modular sofa frame is placed above the shelf 5. The lifting assembly 7 includes through slots 71 on both sides of the top of the sliding table 4 and several support frames 72 fixedly installed on the top of the sliding table 4. A rocker arm 73 is rotatably mounted above the support frame 72. A drive motor 77 is fixedly mounted on the top of the sliding table 4, and two gear transmission boxes 78 are driven to the output shaft of the drive motor 77. A synchronous shaft 75 is driven to one side of the gear transmission box 78, and several cams 76 are fixedly mounted on the outside of the synchronous shaft 75. One end of the cam 76 contacts the top outer surface of the rocker arm 73. Bearing seats 74 are provided at both ends of the synchronous shaft 75. A rotating ball is provided at the top of the rocker arm 73. By using the rotating ball, the platform 5 is driven by the rotating mechanism 6. The bottom of the platform 5 rotates, and the bottom of the platform 5 makes contact with the top of the rocker arm 73 through the rotating ball, which avoids wear between the rocker arm 73 and the bottom of the platform 5. At the same time, a circular groove is provided on the bottom of the platform 5 to facilitate the rotation of the rotating ball. When the modular frames on both sides are assembled at different heights, the operator can start the drive motor 77 to drive the gear transmission box 78 to move, which can simultaneously drive the two synchronous shafts 75 to rotate. The synchronous shafts 75 drive the cams 76 on them to rotate synchronously. The cams 76 can drive one end of the rocker arm 73 to descend, and make the rocker arm 73 rotate on the support frame 72. As the rocker arm 73 moves vertically, it can drive the platform 5 to rise, thereby raising the modular frame above it.
Claims
1. A quick assembly and positioning device for a modular sofa frame, comprising: The substrate (1) is characterized in that: guide components (2) are provided on both sides of the top of the substrate (1), a sliding stage (4) is slidably installed above the guide components (2), and an opening and closing mechanism (3) is provided at the center of the top of the substrate (1), and the opening and closing mechanism (3) is used for the synchronous opening and closing movement of the sliding stages (4) on both sides. A rotating mechanism (6) is provided in the upper middle part of the sliding platform (4), and lifting components (7) are provided on both sides of the top of the sliding platform (4). A shelf (5) is installed above the rotating mechanism (6). The rotating mechanism (6) is used to drive the shelf (5) to rotate. The lifting components (7) are used to drive the shelf (5) to rise and fall. The modular sofa frame is placed above the shelf (5).
2. The rapid assembly and positioning device for a modular sofa frame according to claim 1, characterized in that: The bottom of the substrate (1) is provided with several support legs, and the top of the substrate (1) is provided with several through holes.
3. The rapid assembly and positioning device for a modular sofa frame according to claim 1, characterized in that: The guide assembly (2) includes guide rails (21) fixed on the outer walls of the top two sides of the substrate (1), and the sliding stage (4) has sliding grooves (22) slidably connected to the guide rails (21) on both sides of its bottom.
4. The rapid assembly and positioning device for a modular sofa frame according to claim 1, characterized in that: The opening and closing mechanism (3) includes an active shaft (34) inserted from the bottom of the base plate (1) and attached to the top. A rotating disk (31) is mounted on the top of the active shaft (34). Several pins and bushings (32) are provided on the top of the rotating disk (31). A linkage rod (33) is connected to the pins and bushings (32). The linkage rod (33) is connected between the rotating disk (31) and the sliding table (4).
5. The rapid assembly and positioning device for a modular sofa frame according to claim 1, characterized in that: The rotating mechanism (6) includes a mounting groove (60) on the top of the sliding table (4). A driven gear (61) is provided on one side of the inside of the mounting groove (60), and a driving gear (63) is provided on the other side of the inside of the mounting groove (60). A sleeve (62) is fixedly installed on the top of the driven gear (61), and an angle motor (64) is provided on the top of the driving gear (63). A motor frame (65) is provided on the outside of the angle motor (64).
6. The rapid assembly and positioning device for a modular sofa frame according to claim 5, characterized in that: The bottom of the shelf (5) is fixedly provided with a lifting rod (51), and the top of the sleeve (62) is provided with a slot, and the lifting rod (51) is inserted into the inside of the slot.
7. The rapid assembly and positioning device for a modular sofa frame according to claim 1, characterized in that: The lifting assembly (7) includes through slots (71) on both sides of the top of the sliding table (4) and several support frames (72) fixedly installed on the top of the sliding table (4). A rocker arm (73) is rotatably arranged above the support frame (72). A drive motor (77) is fixedly arranged on the top of the sliding table (4), and two gear transmission boxes (78) are driven to the output shaft of the drive motor (77). A synchronous shaft (75) is driven to one side of the gear transmission box (78), and several cams (76) are fixedly arranged on the outside of the synchronous shaft (75).
8. The rapid assembly and positioning device for a modular sofa frame according to claim 7, characterized in that: One end of the cam (76) is in contact with the top outer surface of the rocker arm (73), both ends of the synchronous shaft (75) are provided with bearing seats (74), and the top end of the rocker arm (73) is provided with a rotating ball.