Telescopic frame structure of single sofa
By designing a telescopic frame structure for individual sofas, the problem of the fixed nature of traditional sofa frames limiting usage scenarios has been solved, achieving flexible extension and retraction as well as safety protection, thus enhancing the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional single-frame sofas have a fixed structure, making them difficult to adapt to diverse usage scenarios and activity needs, and they also pose safety hazards due to unexpected extension and retraction.
A telescopic frame structure for a single sofa was designed, including a protective plate, a mounting bracket, a sliding frame, roller rods, a movable support rod, a rotating rod, and a limiting mechanism. The sofa blocks can be extended or retracted by pulling the baffle and pushing the roller rods, and the limiting mechanism is used to prevent accidental extension.
The sofa frame is designed for flexible extension and retraction, enhancing its adaptability to various usage scenarios. A limiting mechanism prevents accidental extension and improves safety during use.
Smart Images
Figure CN224038807U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sofa accessory technical field especially relates to single sofa telescopic frame structure. BACKGROUND
[0002] In modern home life, as a common furniture, the functionality and flexibility of sofa are paid more and more attention by consumers. The traditional single sofa frame structure usually adopts fixed size design, which limits the use scene and user experience of sofa to some extent.
[0003] With the diversification of living space and the change of people's lifestyle, such as the increase of small household housing and the diversification of space utilization demand, people have higher requirements for the flexibility of sofa. In some small living rooms, apartments or multi-functional rooms, the sofa needs to be flexibly adjusted in size according to the actual use to adapt to different activity needs, such as rest, entertainment, receiving guests, etc.
[0004] In the current home life, the traditional single sofa generally adopts fixed frame form, which makes its size and shape fixed after production, and it is difficult to realize any change. This fixation greatly limits the use flexibility and scene adaptability of sofa, which brings inconvenience to actual use, in addition, part of the traditional single sofa telescopic frame structure is relatively simple in design, and there are various unpredictable unexpected situations in the daily use scene of family environment. When the user is sitting on the sofa to enjoy leisure time, or carrying out daily activities such as cleaning and taking articles around the sofa, if the telescopic part of the sofa is accidentally touched, due to the lack of effective stability and protection mechanism, the sofa will suddenly extend or contract without any warning. This sudden situation is easy to cause the user to lose balance and fall to the ground, and then cause body injury, therefore, in view of the above problems, the single sofa telescopic frame structure is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] In order to make up for the above shortcomings, the utility model provides a single sofa telescopic frame structure, which aims at improving the problems that the traditional single sofa in the prior art lacks telescopic mechanism to respond to different activity needs and part of the single sofa structure is easy to trigger unexpectedly.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] The utility model provides a single sofa telescopic frame structure, including the fender, the outside top of fender is fixedly connected with sofa seat, the outside of fender is fixedly connected with mounting frame, the right side front and rear both ends of mounting frame are fixedly connected with two card tubes, the similar side of mounting frame's front and rear is all fixedly connected with slide groove frame, the inside slide connection of two slide groove frames has the roller lever, the outside fixed connection of roller lever has the mobile support rod, the similar side of mobile support rod's front and rear is all rotatably connected with the rotation bar no.
[0008] As a further description of the above technical solutions:
[0009] The fixing assembly comprises two support pieces, the side of the support piece close to the mobile support rod is fixedly connected to the side of the roller lever away from the mobile support rod, the side of the support piece away from the roller lever is fixedly connected with a wave cylinder frame, the inside of the wave cylinder frame is movably connected with a movable column, the outside of the movable column is fixedly connected with three limiting rollers, the side of the movable column away from the support piece is fixedly connected with a trapezoidal head rod, the inside of the wave cylinder frame close to the support piece is fixedly connected with a return spring.
[0010] As a further description of the above technical solutions:
[0011] The top of the third rotation rod is rotatably connected with a limiting rod, and the outside of the limiting rod is slidably connected to the inner wall of the through slot.
[0012] As a further description of the above technical solutions:
[0013] The top of the spring is fixedly connected to the middle part of the second rotation rod, and the top of the two connecting frames is fixedly connected with a sofa block.
[0014] As a further description of the above technical solutions:
[0015] The side of the return spring close to the movable column is fixedly connected with a limiting block, the side of the limiting block away from the return spring is rotatably connected to the side of the movable column close to the return spring, and the limiting block is slidably connected to the inner wall of the wave cylinder frame.
[0016] As a further description of the above technical solutions:
[0017] The outside of the mobile support rod is slidably connected to the similar side of the two slide groove frames.
[0018] As a further description of the above technical solutions:
[0019] The outer part of the trapezoidal head rod is clamped with the inner wall of the card cylinder.
[0020] As a further description of the above technical solutions:
[0021] The bottom end of the sofa block is in contact with the top end of the baffle, and the side of the sofa block close to the baffle is in contact with the side of the baffle close to the baffle.
[0022] The utility model has the advantages of the following beneficial effects:
[0023] 1. In the utility model, the pulley on the roller rod is slid in the protection plate by pulling the baffle, so that the sofa block is telescoped from the bottom end of the sofa seat, and then the sofa block is pulled to the left end and lifted up, so that the inclined second rotating rod is driven to rotate by the squeezed standing spring, and the second rotating rod is inclined to the left by the connecting frame, so that the telescopic function is increased compared with the traditional single sofa, and the originally idle space at the bottom end of the sofa frame is ingeniously utilized.
[0024] 2. In the utility model, the trapezoidal head rod on the roller rod is inserted into the card cylinder by pushing the baffle, and the pushing force makes the movable column slide along the wave groove in the middle of the wave cylinder frame, so that the trapezoidal head rod fixed to the movable column is rotated and firmly fixed in the card cylinder, so that the sofa frame can be automatically locked after being telescoped, and accidental contact with the telescopic part of the sofa is prevented, so that the frame is not suddenly expanded. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 The utility model provides a single sofa telescopic frame structure's three-dimensional schematic view;
[0026] Figure 2 The utility model provides a single sofa telescopic frame structure mounting frame structure schematic view;
[0027] Figure 3 The utility model provides a single sofa telescopic frame structure rotating rod one structure schematic view;
[0028] Figure 4 The utility model provides a single sofa telescopic frame structure movable support rod structure schematic view;
[0029] Figure 5 The utility model provides a single sofa telescopic frame structure through slot structure schematic view;
[0030] Figure 6 The utility model provides a single sofa telescopic frame structure movable column explosion view.
[0031] Legend:
[0032] 1, shield; 2, sofa seat; 3, mounting frame; 4, card tube; 5, sliding groove frame; 6, roller bar; 7, moving support rod; 8, rotating rod one; 9, rotating rod two; 10, standing spring; 11, rotating rod three; 12, limiting rod; 13, connecting frame; 14, through slot; 15, baffle; 16, sofa block; 17, support piece; 18, wave tube frame; 19, movable column; 20, limiting roller; 21, trapezoidal head rod; 22, return spring; 23, limiting block. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0034] Reference Figures 1 to 3 , the present application provides an embodiment: single sofa telescopic frame structure, including the shield 1, for the U-shaped protective structure, prevent external collision to cause damage to the internal structure. The outer top end of the shield 1 is fixedly connected with the sofa seat 2, and the sofa seat 2 is fixed by welding with the shield 1. The outer part of the shield 1 is fixedly connected with the mounting frame 3, and the mounting frame 3 is a U-shaped mounting frame. The right side of the mounting frame 3 is fixedly connected with two card tubes 4 at the front and rear ends, and the inner wall of the card tube 4 is a circular groove, and the through opening is a rectangular hole.
[0035] The front and rear sides of the mounting frame 3 are fixedly connected with the sliding groove frames 5, and the sliding groove frames 5 are designed with grooves matched with the rollers of the roller bar 6 on the inner wall. In addition, the sliding groove frames 5 are welded on the opposite sides of the inner side of the mounting frame 3. The roller bar 6 is slidably connected in the interior of the two sliding groove frames 5, and the roller bar 6 is combined by a long rod and two rollers. The moving support rod 7 is fixedly connected to the outside of the roller bar 6, and the moving support rod 7 is combined by a U-shaped rod and four pulleys. The moving support rod 7 is slidably connected on the proximal side of the two sliding groove frames 5, and the U-shaped rod of the moving support rod 7 is slidably connected to the outside of the sliding groove frame 5.
[0036] Reference Figure 3 , Figure 4The front and rear sides of the moving support rod 7 are rotatably connected with a rotating rod one 8, and the rotating rod one 8 is located on the opposite side of the inside of the moving support rod 7. The front and rear sides of the moving support rod 7 are rotatably connected with a rotating rod two 9, and the length of the rotating rod two 9 is shorter than that of the rotating rod one 8. The bottom end of the rotating rod one 8 is provided with a standing spring 10, and the top end of the standing spring 10 is fixedly connected to the middle part of the rotating rod two 9. The standing spring 10 is inclined to the middle part of the rotating rod two 9 through the bottom end of the rotating rod one 8, so that the rotating rod one 8 and the rotating rod two 9 are in a stable inclined state.
[0037] The top end of the rotating rod two 9 is rotatably connected with two rotating rod threes 11, and the rotating rod threes 11 are unfolded in a V shape with the rotating rod two 9 as the center. The top end of the rotating rod three 11 is rotatably connected with a limiting rod 12, and the rotating rod three 11 is folded to cooperate with the rotating rod two 9 and the limiting rod 12 to realize the lifting action of the sofa block 16. The top end of the rotating rod one 8 is rotatably connected with a connecting frame 13, and the connecting frame 13 is used to support the sofa block 16. The middle part of the connecting frame 13 is provided with a through slot 14, and the outer part of the limiting rod 12 is slidably connected to the inner wall of the through slot 14. The through slot 14 provides a sliding track for the limiting rod 12.
[0038] The left side of the moving support rod 7 is fixedly connected with a baffle 15, and the bottom end of the sofa block 16 is in contact with the top end of the baffle 15. The baffle 15 plays a limiting and supporting role in the process of sofa stretching and retracting. The top end of the two connecting frames 13 is fixedly connected with the sofa block 16, and the side of the sofa block 16 close to the protective plate 1 is in contact with the side of the protective plate 1 close to the baffle 15. The shape and size of the sofa block 16 should be adapted to the overall design of the sofa seat 2 in actual production.
[0039] Reference Figure 5 , Figure 6 The outer ends of the roller rod 6 are provided with fixed components, and the fixed components include two support pieces 17 fixed on the long rod side of the roller rod 6. The side of the two support pieces 17 close to the moving support rod 7 is fixedly connected to the side of the roller rod 6 away from the moving support rod 7, and the side of the support piece 17 away from the roller rod 6 is fixedly connected with a wave cylinder frame 18 composed of two wave openings.
[0040] The inside of the wave cylinder frame 18 is movably connected with a movable column 19, which can move and rotate inside the wave cylinder frame 18. The outside of the movable column 19 is fixedly connected with three limiting rollers 20, which are slidingly connected to the inner wall of the middle part of the wave cylinder frame 18. The limiting rollers 20 can roll on the inner wall of the wave cylinder frame 18, thereby reducing the friction between the movable column 19 and the wave cylinder frame 18, and ensuring that the movement of the movable column 19 in the wave cylinder frame 18 is smoother. The side of the movable column 19 away from the support piece 17 is fixedly connected with a trapezoidal head rod 21, which is externally engaged with the inner wall of the clamping cylinder 4. When the sofa frame is retracted, the roller rod 6 pushes the wave cylinder frame 18 through the support piece 17, thereby causing the movable column 19 to drive the trapezoidal head rod 21 to insert into and engage with the clamping cylinder 4.
[0041] The side of the wave cylinder frame 18 near the support piece 17 is fixedly connected with a return spring 22. The design is to provide stable elastic force for the trapezoidal head rod 21 after engagement when the sofa frame is retracted, to ensure that the engagement state of the trapezoidal head rod 21 with the clamping cylinder 4 is reliable and prevents accidental unlocking. The side of the return spring 22 near the movable column 19 is fixedly connected with a limiting block 23, and the side of the limiting block 23 away from the return spring 22 is rotatably connected to the side of the movable column 19 near the return spring 22. The design is to allow the movable column 19 to rotate within the elastic range of the return spring 22 to adapt to the movement requirements of the trapezoidal head rod 21 during engagement. The limiting block 23 is slidingly connected to the inner wall of the wave cylinder frame 18, which ensures the stability and accuracy of the limiting block 23 when limiting the displacement of the movable column 19.
[0042] Working principle: when in use, first, pull the baffle 15 to make the wheels at the bottom end of the moving support rod 7 assist the pulleys on both sides of the roller rod 6 to slide in the sliding slot frame 5, so that the roller rod 6 can assist the moving support rod 7 to stably slide out of the sliding slot frame 5. At this time, the sofa block 16 at the bottom end of the sofa seat 2 will be pressed against the right side of the baffle 15 by the bottom end of the second rotating rod 9 under the elastic force of the standing spring 10 when the moving support rod 7 is fully extended. Because, in the initial state, the second rotating rod 9 and the first rotating rod 8 are pressed against the bottom end of the sofa seat 2 when the sofa block 16 is pressed, the standing spring 10 is always in a pressed state. When the sofa block 16 extends out of the bottom end of the sofa seat 2, the pressed standing spring 10 will push the second rotating rod 9 to the left side and rotate, while the first rotating rod 8 will be synchronously driven to the left side under the indirect connection of the connecting frame 13, thereby realizing the left sliding of the sofa block 16 against the baffle 15. Finally, the user can pull the sofa block 16 on both sides to lift up, so that the sofa block 16 slides relatively with the through slot 14 through the limiting rod 12, and the limiting rod 12 increases the length of the third rotating rod 11, thereby achieving the function of increasing the area of the single sofa after the sofa block 16 is lifted up, the bottom end is pressed against the top end of the baffle 15, and the right side is pressed against the edge of the sofa seat 2.
[0043] When the mobile support rod 7 drives the roller rod 6 to retract into the mounting frame 3, the roller rod 6 will be inserted into the clamping cylinder 4 through the trapezoidal head rod 21 defined by the wave cylinder frame 18 under the action of the pushing force of the roller rod 6, and when being inserted, the roller rod 6 will continuously extrude the trapezoidal head rod 21 by abutting against the wave cylinder frame 18 through the support sheet 17, at this time, the trapezoidal head rod 21 will slide and rotate in the middle wave groove of the wave cylinder frame 18 through the limiting roller 20 fixed by the movable column 19, then the elastic force of the reset spring 22 will abut against the trapezoidal head rod 21 through the movable column 19, so that the trapezoidal head rod 21 is clamped with the inner wall of the clamping cylinder 4 after rotating, and the sofa frame can be self-locked after being retracted, so that the sofa frame is prevented from being opened accidentally.
[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A single sofa telescopic frame structure comprising a shield plate (1), characterized in that: The outer top end of the guard plate (1) is fixedly connected with a sofa seat (2), the outer side of the guard plate (1) is fixedly connected with a mounting rack (3), the right side of the mounting rack (3) is fixedly connected with two clamping barrels (4), the front and rear sides of the mounting rack (3) are fixedly connected with slide groove frames (5), the inner sides of the two slide groove frames (5) are slidably connected with roller rods (6), the outer sides of the roller rods (6) are fixedly connected with movable support rods (7), the front and rear sides of the movable support rods (7) are rotatably connected with rotating rods (8), the front and rear sides of the movable support rods (7) are rotatably connected with rotating rods (9), the bottom end of the rotating rod (8) is provided with a standing spring (10), the top end of the rotating rod (9) is rotatably connected with two rotating rods (11), the top end of the rotating rod (8) is rotatably connected with a connecting frame (13), the middle part of the connecting frame (13) is provided with a through slot (14), the left side of the movable support rod (7) is fixedly connected with a baffle (15), and the outer sides of the roller rods (6) are provided with fixed assemblies.
2. The single sofa telescoping frame structure of claim 1, wherein: The fixed assembly comprises two support plates (17), the side of the two support plates (17) close to the movable support rod (7) is fixedly connected to the side of the roller rod (6) away from the movable support rod (7), the side of the support plate (17) away from the roller rod (6) is fixedly connected with a wave barrel frame (18), the inner side of the wave barrel frame (18) is movably connected with a movable column (19), the outer side of the movable column (19) is fixedly connected with three limiting rollers (20), the side of the movable column (19) away from the support plate (17) is fixedly connected with a trapezoidal head rod (21), and the inner side of the wave barrel frame (18) close to the support plate (17) is fixedly connected with a reset spring (22).
3. The single sofa telescoping frame structure of claim 1, wherein: The top end of the rotating rod (11) is rotatably connected with a limiting rod (12), and the outer side of the limiting rod (12) is slidably connected to the inner wall of the through slot (14).
4. The single sofa telescoping frame structure of claim 1, wherein: The top end of the standing spring (10) is fixedly connected to the middle part of the rotating rod (9), and the top end of the two connecting frames (13) is fixedly connected with a sofa block (16).
5. The single sofa telescoping frame structure of claim 2, wherein: The side of the reset spring (22) close to the movable column (19) is fixedly connected with a limiting block (23), the side of the limiting block (23) away from the reset spring (22) is rotatably connected to the side of the movable column (19) close to the reset spring (22), and the limiting block (23) is slidably connected to the inner wall of the wave barrel frame (18).
6. The single sofa telescoping frame structure of claim 1, wherein: The outer side of the movable support rod (7) is slidably connected to the side of the two slide groove frames (5) close to each other.
7. The single sofa telescoping frame structure of claim 2, wherein: The outer side of the limiting roller (20) is slidably connected to the middle inner wall of the wave barrel frame (18), and the outer side of the trapezoidal head rod (21) is engaged with the inner wall of the clamping barrel (4).
8. The single sofa telescoping frame structure of claim 4, wherein: The bottom end of the sofa block (16) is in contact with the top end of the baffle (15), and the side of the sofa block (16) close to the guard plate (1) is in contact with the side of the guard plate (1) close to the baffle (15).