A sofa leg fixing device for a smart sofa

Abstract

The utility model discloses a sofa foot fixing device for intelligent sofa relates to sofa technical field, including top board, the top board below is provided with mounting bracket, and the inside mounting of mounting bracket has connecting mechanism, the utility model discloses through using bidirectional screw rod to carry out the rotation adjustment, drives two moving frame synchronous movement, ensures that they are in opposite direction and displace simultaneously, realizes accurate installation control, with two moving frame approaching each other, they will gradually approach the limiting frame, and the clamping groove on limiting frame and the clamping part on connecting frame butt joint, complete the positioning and locking of connecting frame, avoid the error that brings because loosening or deviation, ensure the stability of support system, finally, after connecting frame completes positioning and locking, the support leg installation is completed, and this design improves installation efficiency and convenience.

Description

Technical Field

[0001] This utility model relates to the field of sofa technology, and in particular to a sofa leg fixing device for smart sofas. Background Technology

[0002] Smart sofas are a new favorite in home furnishings, blending cutting-edge technology with human-centered design, and are reshaping the home experience. They support voice control and remote operation via a mobile app, can automatically adjust angles, and some even have voice memory functions. Zero-gravity functionality reduces spinal pressure, adjustable headrests and lumbar supports alleviate fatigue, and the modular design adapts to various spaces.

[0003] However, in existing technologies, traditional sofa legs are mostly fixed with a single bolt or welded. During installation, the holes need to be aligned repeatedly, and the sofa legs are prone to tilting due to manual operation deviations. Moreover, disassembly and maintenance require unscrewing each bolt one by one, which is time-consuming and laborious. The connection is easily loosened due to the weight and vibration of the sofa during long-term use, resulting in the sofa shaking and abnormal noise. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing technologies often use a single bolt or welding method for fixing, which requires repeated alignment of the holes during installation and is prone to causing the sofa legs to become crooked due to manual operation deviations. Therefore, this invention proposes a sofa leg fixing device for smart sofas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sofa leg fixing device for a smart sofa, including a top plate, a mounting frame provided below the top plate, and a connecting mechanism installed inside the mounting frame;

[0006] The connecting mechanism includes a bidirectional lead screw, with movable frames threaded to the outer surfaces of both ends of the bidirectional lead screw, and a fixed block rotatably connected to the middle of the bidirectional lead screw. The top of the fixed block is fixedly connected to the top of the inner cavity of the mounting frame. A limit frame is fixedly connected to the inner side of the movable frame, and a guide block is fixedly connected to the top of the movable frame. A plug-in rod is fixedly connected to the bottom of the fixed block, and a connecting frame is inserted into the outer surface of the bottom end of the plug-in rod. Slots are provided on both sides of the limit frame, and the slots engage with the connecting frame.

[0007] Preferably, a handle is fixedly connected to the outer surface of one end of the bidirectional lead screw, and a support leg is fixedly connected to the bottom end of the connecting frame.

[0008] Preferably, a limiting groove is provided on the inner side of the mounting bracket, and the mounting bracket is slidably connected to the guide block.

[0009] Preferably, a threaded rod is fixedly connected to the center of the bottom of the top plate, and a threaded sleeve is threadedly connected to the outer surface of the threaded rod.

[0010] Preferably, the bottom of the threaded sleeve is rotatably connected to the center of the top of the mounting bracket.

[0011] Preferably, two telescopic rods are symmetrically fixedly connected to the top of the mounting bracket, and the top of the telescopic rods is fixedly connected to the bottom of the top plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by using a bidirectional lead screw for rotational adjustment, two moving frames are driven to move synchronously, ensuring that they are displaced in opposite directions at the same time, thus achieving precise installation control. As the two moving frames approach each other, they will gradually move closer to the limiting frame. The slot on the limiting frame mates with the locking component on the connecting frame, completing the positioning and locking of the connecting frame. This avoids errors caused by loosening or offset, ensuring the stability of the support system. Finally, after the connecting frame is positioned and locked, the support leg is installed. This design improves installation efficiency and convenience.

[0014] 2. In this utility model, the operator can rotate the bidirectional lead screw to adjust the distance between the two moving frames, thereby locking and releasing the connecting frame. At the same time, it ensures that the guide block moves stably under the guidance of the limit groove during the adjustment of the moving frame, avoiding the moving frame from tilting, and ensuring the accuracy and stability of the connecting frame locking. After installation, the height of the support leg can be precisely adjusted by rotating the threaded sleeve in conjunction with the threaded rod, preventing the support leg at the bottom of the sofa from tilting. The design of the telescopic rod ensures the stability during the adjustment process, avoiding uneven support caused by improper adjustment, and improving the stability and durability of the overall structure. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a sofa leg fixing device for a smart sofa.

[0016] Figure 2 This utility model provides a front view structural diagram of a sofa leg fixing device for a smart sofa;

[0017] Figure 3 This utility model provides a three-dimensional structural diagram of the connecting mechanism in a sofa leg fixing device for a smart sofa;

[0018] Figure 4 This utility model presents a schematic diagram showing the disassembled structure of the connecting mechanism in a sofa leg fixing device for a smart sofa.

[0019] Legend: 1. Support leg; 11. Connecting frame; 2. Mounting frame; 21. Limiting groove; 3. Top plate; 31. Threaded rod; 32. Threaded sleeve; 33. Telescopic rod; 4. Connecting mechanism; 41. Two-way lead screw; 42. Moving frame; 43. Limiting frame; 431. Slot; 44. Fixing block; 441. Insertion rod; 45. Guide block; 46. Handle. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a sofa leg fixing device for a smart sofa, including a top plate 3, a mounting bracket 2 is provided below the top plate 3, and a connecting mechanism 4 is installed on the inner side of the mounting bracket 2;

[0023] The connecting mechanism 4 includes a bidirectional lead screw 41. Both ends of the bidirectional lead screw 41 are threadedly connected to a movable frame 42. A fixed block 44 is rotatably connected to the middle of the bidirectional lead screw 41. The top of the fixed block 44 is fixedly connected to the top of the inner cavity of the mounting frame 2. A limit frame 43 is fixedly connected to the inner side of the movable frame 42. A guide block 45 is fixedly connected to the top of the movable frame 42. A plug rod 441 is fixedly connected to the bottom of the fixed block 44. A connecting frame 11 is inserted into the outer surface of the bottom end of the plug rod 441. A slot 431 is opened on both sides of the limit frame 43. The slot 431 is engaged with the connecting frame 11.

[0024] The specific settings and functions of this embodiment will be described in detail below. During the installation process, the connecting bracket 11 at the top of the support leg 1 and the plug-in rod 441 need to be plugged together to ensure a tight fit and complete the initial positioning. During this process, it is necessary to confirm whether the connection between the plug-in rod 441 and the connecting bracket 11 is secure to ensure the smooth progress of subsequent operations.

[0025] Next, the two-way lead screw 41 is used for rotational adjustment, which drives the two moving frames 42 to move synchronously. The rotation of the two-way lead screw 41 causes the two moving frames 42 to move simultaneously in different directions. This ensures that the two moving frames 42 approach each other during synchronous movement.

[0026] As the two movable frames 42 approach each other, they gradually move closer to the limiting frame 43. The limiting frame 43 has a slot 431, and the connecting frame 11 is equipped with a corresponding engaging component. When the two movable frames 42 move even closer, the slot 431 on the surface of the limiting frame 43 accurately engages with the engaging component of the connecting frame 11, thereby achieving positioning and locking of the connecting frame 11. At this point, the connecting frame 11 is fixed, avoiding errors caused by loosening or misalignment during installation.

[0027] After the connecting frame 11 is positioned and locked, the entire support leg 1 is installed. This significantly improves the efficiency and convenience of the installation process, especially when frequent disassembly or equipment maintenance is required, providing greater convenience. The support leg 1 can be easily disassembled and reinstalled, greatly reducing the complexity and time cost of maintenance work.

[0028] Example 2: Figure 2 - Figure 4 As shown, a handle 46 is fixedly connected to the outer surface of one end of the bidirectional lead screw 41, and a support leg 1 is fixedly connected to the bottom end of the connecting frame 11. A limit groove 21 is opened on the inner side of the mounting frame 2, and the mounting frame 2 is slidably connected to the guide block 45. A threaded rod 31 is fixedly connected to the center of the bottom of the top plate 3, and a threaded sleeve 32 is threadedly connected to the outer surface of the threaded rod 31. The bottom of the threaded sleeve 32 is rotatably connected to the center of the top of the mounting frame 2. Two telescopic rods 33 are symmetrically fixedly connected to the top of the mounting frame 2, and the top of the telescopic rods 33 is fixedly connected to the bottom of the top plate 3.

[0029] The overall effect of this embodiment is that when the bidirectional lead screw 41 is manually operated, its rotation causes a corresponding displacement on its rotation axis, thereby achieving precise adjustment of the distance between the two movable frames 42. This adjustment process effectively completes the locking and releasing functions of the connecting frame 11. During the adjustment of the movable frame 42, the top guide block 45, constrained by the limiting groove 21 and limited by the structural design within the limiting groove 21, slides along the groove. This design not only ensures that the guide block 45 does not deviate beyond the predetermined range during the adjustment of the movable frame 42, but also provides additional guiding action, ensuring that the movable frame 42 remains smooth and stable during adjustment. In this way, the movable frame 42 can move within a strictly controlled range, avoiding accuracy errors caused by skew, ensuring that the connecting frame 11 remains stable throughout the entire adjustment and locking process, thereby improving the reliability and accuracy of the overall device.

[0030] After installation, the height of the support leg 1 can be precisely adjusted by rotating the threaded sleeve 32 in conjunction with the threaded rod 31. This threaded engagement mechanism allows for flexible adjustment of the support leg 1 according to actual needs, thus avoiding uneven support at the bottom of the sofa and ensuring that all four support legs 1 are evenly stressed, further improving stability and comfort. During height adjustment, the telescopic rod 33 acts as an auxiliary mechanism, ensuring the stability of the support leg 1 during adjustment. The telescopic rod 33 provides additional support force, effectively preventing support imbalance caused by improper adjustment, thereby enhancing the stability and durability of the entire structure.

[0031] The usage and working principle of this device are as follows: During installation, first attempt to connect the connecting frame 11 at the top of the support leg 1 with the insertion rod 441 to complete the initial positioning. Then, by rotating the bidirectional lead screw 41, the two moving frames 42 can be driven to move towards each other simultaneously. As the two moving frames 42 approach each other synchronously, the limiting frame 43 at one end gradually approaches the connecting frame 11 and engages with the connecting frame 11 through the slot 431 on the surface of the limiting frame 43, thereby completing the positioning and locking of the connecting frame 11, and thus realizing the installation of the support leg 1. This structure not only improves the convenience of installation but also facilitates quick disassembly for subsequent maintenance.

[0032] The bidirectional lead screw 41 can be rotated by operating the handle 46, thereby adjusting the distance between the two movable frames 42 and locking or releasing the connecting frame 11. During the movement of the movable frame 42, the guide block 45 at its top moves under the constraint of the limiting groove 21, which can maintain the movement stability of the movable frame 42 and avoid affecting the locking effect of the connecting frame 11 due to tilting.

[0033] Furthermore, after installation, the height of the support legs 1 can be adjusted by rotating the threaded sleeve 32 in conjunction with the threaded rod 31 to ensure that the four support legs 1 at the bottom of the sofa are stably supported and do not tilt. The telescopic rod 33 can further improve the stability during the height adjustment process.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sofa leg fixing device for a smart sofa, comprising a top plate (3), wherein a mounting bracket (2) is provided below the top plate (3), characterized in that: A connecting mechanism (4) is installed on the inner side of the mounting bracket (2); The connecting mechanism (4) includes a bidirectional lead screw (41), with a movable frame (42) threadedly connected to the outer surfaces of both ends of the bidirectional lead screw (41), and a fixed block (44) rotatably connected to the middle of the bidirectional lead screw (41). The top of the fixed block (44) is fixedly connected to the top of the inner cavity of the mounting frame (2). A limit frame (43) is fixedly connected to the inner side of the movable frame (42), and a guide block (45) is fixedly connected to the top of the movable frame (42). A plug-in rod (441) is fixedly connected to the bottom of the fixed block (44), and a connecting frame (11) is inserted into the outer surface of the bottom end of the plug-in rod (441). A slot (431) is opened on both sides of the limit frame (43), and the slot (431) is engaged with the connecting frame (11).

2. The sofa leg fixing device for a smart sofa according to claim 1, characterized in that: A handle (46) is fixedly connected to the outer surface of one end of the bidirectional lead screw (41), and a support leg (1) is fixedly connected to the bottom end of the connecting frame (11).

3. The sofa leg fixing device for a smart sofa according to claim 1, characterized in that: The mounting bracket (2) has a limiting groove (21) on its inner side, and the mounting bracket (2) is slidably connected to the guide block (45).

4. A sofa leg fixing device for a smart sofa according to claim 1, characterized in that: A threaded rod (31) is fixedly connected to the center of the bottom of the top plate (3), and a threaded sleeve (32) is threadedly connected to the outer surface of the threaded rod (31).

5. A sofa leg fixing device for a smart sofa according to claim 4, characterized in that: The bottom of the threaded sleeve (32) is rotatably connected to the top center of the mounting bracket (2).

6. A sofa leg fixing device for a smart sofa according to claim 1, characterized in that: The mounting bracket (2) has two telescopic rods (33) symmetrically fixedly connected to its top, and the top of the telescopic rods (33) is fixedly connected to the bottom of the top plate (3).

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