A sofa with assembling and fixing structure
Patent Information
- Application Number
- CN202522294653.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0004]本实用新型的目的在于提供一种具有拼装固定结构的沙发,以解决上述背景技术中提出的现有问题
在本申请的方案中:
Smart Images

Figure CN224722932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sofa technology, specifically to a sofa with an assembly and fixing structure. Background Technology
[0002] Sofas are the core furniture in a home, combining practicality and decorative charm. Their diverse design styles perfectly complement different decorating styles, from minimalist modern to vintage-inspired European. The sofa's frame is crucial for support; solid wood frames are natural and environmentally friendly, possessing a warm texture that evokes a sense of closeness to nature, while steel frames are sturdy, durable, and resistant to deformation, allowing for various innovative shapes. The filling directly impacts seating comfort; high-density sponge offers excellent resilience, preventing sagging even after prolonged sitting, while natural latex provides a soft, body-hugging feel and effectively distributes pressure. Down offers an exceptionally fluffy and soft experience, making you feel gently enveloped. Fabric choices are also plentiful: leather sofas are luxurious, durable, and easy to clean, while fabric sofas are warm, skin-friendly, and come in a variety of colors and patterns. Furthermore, sofa sizes are flexible, allowing you to choose according to space and family needs, easily creating a comfortable and relaxing corner where people can enjoy moments of tranquility and relaxation amidst their busy lives.
[0003] The prior art patent document CN216166459U provides a modular sofa with an assembly structure. When it needs to be separated, the left side of the two assembled sofa bodies is pushed backward, so that the interlocking male and female fasteners separate from the side. However, in existing technology, some sofas occupy a lot of space and are fixed, making it impossible to flexibly adjust their position according to the room layout. They also cannot adjust the height for people of different heights, affecting comfort. Therefore, we need a sofa with a modular and fixed structure. Utility Model Content
[0004] The purpose of this utility model is to provide a sofa with an assembly and fixing structure to solve the existing problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sofa with an assembly and fixing structure, including a support column, a first fixing shell fixedly connected to the top of the support column, an assembly component provided on one side of the first fixing shell, a lifting component provided inside the first fixing shell, a second fixing shell provided on one side of the first fixing shell, the assembly component including a mounting block, and a spring fixedly connected inside the mounting block, a protrusion fixedly connected to one end of the spring, a first double-ended screw penetrating through the interior of the mounting block, nuts threaded at both ends of the first double-ended screw, a connecting block engaging with the inner wall of the mounting block, and a groove provided at the bottom of the connecting block.
[0006] Preferably, the mounting block forms an elastic structure with a spring and a protrusion, with one end of the spring connected to the interior of the mounting block and the other end of the spring fixedly connected to the bottom of the protrusion.
[0007] Preferably, the first double-ended screw is detachable by means of a nut and a mounting block, and the inner diameter of the nut matches the outer diameter of the first double-ended screw, and the inner wall of the nut fits against the outer wall of the first double-ended screw.
[0008] Preferably, the connecting block forms an engaging structure with the protrusion through a groove, and the size of the groove matches the size of the protrusion, and the bottom of the groove fits against the top of the protrusion.
[0009] Preferably, the lifting assembly includes a motor, and the output end of the motor is fixedly connected to a second double-ended screw via a coupling. A slide rail is fixedly connected inside the first fixed housing. A sliding sleeve is threadedly connected to the outer wall of the second double-ended screw. A sliding plate is fixedly connected to the top of the sliding sleeve. A fixing block is fixedly connected to the top of the sliding plate. A support rod is hinged to one side of the fixing block. A support block is hinged to one end of the support rod. A sofa seat is fixedly connected to the top of the support block.
[0010] Preferably, the motor forms a movable structure with the sliding sleeve via a second double-ended screw, and one end of the second double-ended screw is fixedly connected to the coupling of the motor, and the outer wall of the second double-ended screw is threadedly connected to the inner wall of the sliding sleeve.
[0011] Preferably, the slide block forms a movable structure with a fixed block and a support rod, and the bottom of the fixed block is fixedly connected to the top of the slide block, and one side of the fixed block is hinged to one end of the support rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are: In the scheme of this application: 1. In order to solve the problem that the existing sofa connection and fixing methods are not flexible enough and it is difficult to adjust the position according to the room layout, this application sets up a connecting block on one side of the first fixing shell to extend into the mounting block on one side of the second fixing shell. The protrusion compresses the spring during the movement. When it reaches the groove position, the spring rebounds and the protrusion fits into the groove to complete the partial fixation. Then, the first double-headed screw passes through the mounting block and the connecting block, and the nuts at both ends are rotated to realize the stable connection of the two sofas, which makes it convenient to flexibly adjust the position of the sofa according to the room layout. 2. To address the problem in existing technologies where sofa height is difficult to adjust, failing to meet the needs of people of different heights and resulting in poor comfort, this application proposes a new technology. A starting motor drives a second double-headed screw to rotate within the sliding sleeve, causing the sleeve to move along the outer wall of the slide rail. This, in turn, sequentially moves the sliding plate, fixing block, support rod, and support block, ultimately pushing the sofa seat to move. This achieves flexible height adjustment of the sofa, meeting the usage needs of people of different heights and effectively improving user comfort. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the first double-ended screw and mounting block structure of this utility model; Figure 3 This is a schematic diagram of the spring and protrusion structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first fixing shell and connecting block of this utility model; Figure 5 This is a schematic diagram of the sliding sleeve and sliding plate structure of this utility model.
[0014] In the diagram: 1. Support column; 2. First fixed shell; 3. Assembly component; 4. Lifting component; 5. Second fixed shell; 301. Mounting block; 302. Spring; 303. Protrusion; 304. First double-ended screw; 305. Nut; 306. Connecting block; 307. Groove; 401. Motor; 402. Second double-ended screw; 403. Slide rail; 404. Sliding sleeve; 405. Slide plate; 406. Fixed block; 407. Support rod; 408. Support block; 409. Sofa seat. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] This utility model embodiment provides a sofa with an assembly and fixing structure, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the system includes a support column 1, a first fixed shell 2 fixedly connected to the top of the support column 1, an assembly component 3 on one side of the first fixed shell 2, a lifting component 4 inside the first fixed shell 2, and a second fixed shell 5 on one side of the first fixed shell 2. The assembly component 3 includes a mounting block 301, and a spring 302 fixedly connected inside the mounting block 301. A protrusion 303 is fixedly connected to one end of the spring 302. A first double-ended screw 304 passes through the interior of the mounting block 301, and nuts 305 are threaded onto both ends of the first double-ended screw 304. A connecting block 306 is engaged with the inner wall of the mounting block 301. A groove 307 is provided at the bottom of the connecting block 306 to hold the first... The connecting block 306 on one side of the fixed shell 2 extends into the mounting block 301 on one side of the second fixed shell 5. At this time, the connecting block 306 moves inside the mounting block 301, causing the protrusion 303 to move downward and compress the spring 302. When it moves to the same position as the groove 307 and the protrusion 303, the spring 302 rebounds and drives the protrusion 303 to move upward, so that the top of the protrusion 303 fits with the top of the groove 307, completing the partial fixation. Then, the first double-ended screw 304 passes through the mounting block 301 and the connecting block 306 at both ends. Then, the nuts 305 at both ends of the first double-ended screw 304 are rotated to complete the connection and fixation of the two sofas. The position can be flexibly adjusted according to the indoor layout.
[0017] Furthermore, such as Figure 3 and Figure 4 As shown, the mounting block 301 forms an elastic structure with the protrusion 303 via the spring 302, and one end of the spring 302 is connected to the interior of the mounting block 301, while the other end of the spring 302 is fixedly connected to the bottom of the protrusion 303. By using the spring 302, the spring 302 can support the protrusion 303 with the support of the mounting block 301, thereby improving the connection stability between the mounting block 301 and the connecting block 306.
[0018] Furthermore, such as Figure 2 and Figure 3 As shown, the first double-ended screw 304 forms a detachable structure with the mounting block 301 via the nut 305. The inner diameter of the nut 305 matches the outer diameter of the first double-ended screw 304, and the inner wall of the nut 305 fits against the outer wall of the first double-ended screw 304. The nut 305 allows the outer wall of the first double-ended screw 304 to rotate, causing one side of the nut 305 to press against one side of the mounting block 301 for fixation, thus improving the connection effect between the first double-ended screw 304 and the mounting block 301.
[0019] Furthermore, such as Figure 2 and Figure 3As shown, the connecting block 306 forms a locking structure with the protrusion 303 through the groove 307, and the size of the groove 307 matches the size of the protrusion 303. The bottom of the groove 307 fits against the top of the protrusion 303. Through the groove 307, the protrusion 303 can be locked inside the groove 307, which improves the connection stability between the connecting block 306 and the mounting block 301.
[0020] In a further preferred embodiment of this utility model, such as Figure 1 Figure 4 and Figure 5 As shown, the lifting assembly 4 includes a motor 401, and the output end of the motor 401 is fixedly connected to a second double-ended screw 402 via a coupling. A slide rail 403 is fixedly connected inside the first fixed housing 2. A sliding sleeve 404 is threadedly connected to the outer wall of the second double-ended screw 402. A sliding plate 405 is fixedly connected to the top of the sliding sleeve 404. A fixing block 406 is fixedly connected to the top of the sliding plate 405. A support rod 407 is hinged to one side of the fixing block 406, and a support block 408 is hinged to one end of the support rod 407. The top of the support block 408... The sofa seat 409 is fixedly connected to the unit. By starting the motor 401, it drives the second double-headed screw 402 to rotate on the inner wall of the sliding sleeve 404, causing the sliding sleeve 404 to move along the outer wall of the slide rail 403. This causes the sliding sleeve 404 to drive the sliding plate 405 to move, the sliding plate 405 to drive the fixed block 406 to move, and then the fixed block 406 to push the support rod 407 to move. The support rod 407 pushes the support block 408 to move, and the support block 408 pushes the sofa seat 409 to move, thus completing the height adjustment to accommodate different heights and improve comfort.
[0021] Furthermore, such as Figure 5 As shown, the motor 401 forms a movable structure with the sliding sleeve 404 via the second double-ended screw 402, and one end of the second double-ended screw 402 is fixedly connected to the coupling of the motor 401, and the outer wall of the second double-ended screw 402 is threadedly connected to the inner wall of the sliding sleeve 404, so that when the motor 401 drives the second double-ended screw 402 to rotate on the inner wall of the sliding sleeve 404, the second double-ended screw 402 drives the sliding sleeve 404 to move.
[0022] Furthermore, such as Figure 5 As shown, the slide plate 405 forms a movable structure with the fixed block 406 and the support rod 407. The bottom of the fixed block 406 is fixedly connected to the top of the slide plate 405, and one side of the fixed block 406 is hinged to one end of the support rod 407. This allows the fixed block 406 to push the support rod 407 to move when the slide plate 405 moves the fixed block 406.
[0023] Working principle: The connecting block 306 on one side of the first fixed shell 2 is inserted into the mounting block 301 on one side of the second fixed shell 5. At this time, the connecting block 306 moves inside the mounting block 301, causing the protrusion 303 to move downward, compressing the spring 302. When it moves to the same position as the groove 307 and the protrusion 303, the spring 302 rebounds, causing the protrusion 303 to move upward, so that the top of the protrusion 303 fits with the top of the groove 307, completing partial fixation. Then, the first double-ended screw 304 passes through the mounting block 301 and the connecting block 306 at both ends, and the first double-ended screw 304 is rotated. The nuts 305 at both ends connect and fix the two sofa sets, and their positions can be flexibly adjusted according to the room layout. By starting the motor 401, it drives the second double-headed screw 402 to rotate on the inner wall of the sliding sleeve 404, causing the sliding sleeve 404 to move along the outer wall of the slide rail 403. This causes the sliding sleeve 404 to move the sliding plate 405, which in turn moves the fixing block 406. The fixing block 406 then pushes the support rod 407 to move, which in turn pushes the support block 408 to move. The support block 408 then pushes the sofa seat 409 to move, thus completing the height adjustment to accommodate different heights and improve comfort.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A sofa with an assembled and fixed structure, comprising a support column (1), characterized in that: The top of the support column (1) is fixedly connected to a first fixed shell (2), and an assembly component (3) is provided on one side of the first fixed shell (2). A lifting component (4) is provided inside the first fixed shell (2), and a second fixed shell (5) is provided on one side of the first fixed shell (2). The assembly component (3) includes an installation block (301), and a spring (302) is fixedly connected inside the installation block (301). A protrusion (303) is fixedly connected to one end of the spring (302). A first double-ended screw (304) passes through the inside of the installation block (301). Nuts (305) are threaded on both ends of the first double-ended screw (304). A connecting block (306) is engaged with the inner wall of the installation block (301). A groove (307) is provided at the bottom of the connecting block (306).
2. A sofa with an assembly and fixing structure according to claim 1, characterized in that: The mounting block (301) forms an elastic structure with a spring (302) and a protrusion (303), and one end of the spring (302) is connected to the interior of the mounting block (301), and the other end of the spring (302) is fixedly connected to the bottom of the protrusion (303).
3. A sofa with an assembly and fixing structure according to claim 1, characterized in that: The first double-ended screw (304) forms a detachable structure with the mounting block (301) through the nut (305), and the inner diameter of the nut (305) matches the outer diameter of the first double-ended screw (304), and the inner wall of the nut (305) fits against the outer wall of the first double-ended screw (304).
4. A sofa with an assembly and fixing structure according to claim 1, characterized in that: The connecting block (306) forms a locking structure with the protrusion (303) through the groove (307), and the size of the groove (307) matches the size of the protrusion (303), and the bottom of the groove (307) fits against the top of the protrusion (303).
5. A sofa with an assembly and fixing structure according to claim 1, characterized in that: The lifting assembly (4) includes a motor (401), and the output end of the motor (401) is fixedly connected to a second double-ended screw (402) via a coupling. A slide rail (403) is fixedly connected inside the first fixed housing (2). A sliding sleeve (404) is threadedly connected to the outer wall of the second double-ended screw (402). A sliding plate (405) is fixedly connected to the top of the sliding sleeve (404). A fixing block (406) is fixedly connected to the top of the sliding plate (405). A support rod (407) is hinged to one side of the fixing block (406). A support block (408) is hinged to one end of the support rod (407). A sofa seat (409) is fixedly connected to the top of the support block (408).
6. A sofa with an assembly and fixing structure according to claim 5, characterized in that: The motor (401) forms a movable structure with the sliding sleeve (404) via the second double-ended screw (402), and one end of the second double-ended screw (402) is fixedly connected to the coupling of the motor (401), and the outer wall of the second double-ended screw (402) is threadedly connected to the inner wall of the sliding sleeve (404).
7. A sofa with an assembly and fixing structure according to claim 5, characterized in that: The slide plate (405) forms a movable structure through the fixing block (406) and the support rod (407), and the bottom of the fixing block (406) is fixedly connected to the top of the slide plate (405), and one side of the fixing block (406) is hinged to one end of the support rod (407).
Citation Information
Patent Citations
Combined sofa with assembled structure
CN216166459U