Telescopic sofa

Abstract

The utility model discloses a telescopic sofa, which relates to the field of sofas, and comprises a supporting bottom frame, the upper end of the supporting bottom frame is connected with a fixing plate, the side end of the fixing plate is rotatably connected with an adjusting threaded rod, the side end of the fixing plate is connected with a track rod, and the track rod is connected with a telescopic rod. A moving plate is arranged at the upper end of the supporting bottom frame, and the lower end of the moving plate is connected with an adjusting pipe. By arranging an adjusting threaded rod and an adjusting pipe, a servo motor is started to drive the adjusting threaded rod to rotate, so that a moving plate moves, a second sofa cushion can extend out, the length of the sofa can be adjusted, the device can become a deck chair, and a first sofa cushion is flush with the extending second sofa cushion and is not in concave-convex connection with the extending second sofa cushion; the device can improve the comfort level of a user, is simple in structure, convenient to operate, good in stability, capable of achieving automatic telescopic deformation, good in flexibility and good in applicability, and the sofa cushion is always kept flat.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a retractable sofa. Background Art

[0002] Sofas are common and frequently used furniture in homes, public places or offices. People sit or lie on the sofa to rest, and they also watch TV, play with mobile phones and engage in other entertainment activities while resting. In order to adapt to different occasions and needs, many retractable sofas are now available on the market.

[0003] However, the retractable sofas currently on the market generally hide the adjustable sofa cushions under the non-adjustable sofa cushions. When performing retractable adjustment, the user needs to manually pull and adjust. The degree of intelligence is low and the flexibility is poor. In addition, the extended adjustable sofa cushion and the non-adjustable sofa cushion have obvious concave and convex connections at the connection between the two, which will seriously affect the user's use effect and comfort.

[0004] In order to solve this technical problem, the utility model provides a retractable sofa. Utility Model Content

[0005] The main purpose of the utility model is to provide a retractable sofa, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A retractable sofa comprises a supporting base frame, the upper end of the supporting base frame is connected to a fixed plate, the side end of the fixed plate is rotatably connected to an adjusting threaded rod, the side end of the fixed plate is connected to a track rod, the upper end of the supporting base frame is provided with a movable plate, the lower end of the movable plate is connected to an adjusting tube, the lower end of the movable plate is connected to a track sleeve, the side end of the adjusting threaded rod is connected to a worm gear, a servo motor is connected inside the fixed plate, a driving end of the servo motor is connected to a worm, the lower end of the movable plate is connected to a supporting frame, the lower end of the supporting frame is provided with a rolling wheel, and the upper end of the movable plate is provided with a first sofa cushion and a second sofa cushion.

[0008] Preferably, a cotton pad is connected to the lower end of the support base, an outer shell plate is connected to the side end of the support base, both ends of the support base are set in arcs, a threaded hole is opened in the adjustment tube, the adjustment threaded rod is threadedly connected in the adjustment tube, and the track rod is slidably connected in the track sleeve.

[0009] Preferably, the worm gear is rotatably connected to the side end of the fixed plate, the servo motor is located at the lower end of the worm gear, the worm is engaged with the worm gear, the support frame is located in the support base, the support frame is located at the lower end of the adjusting threaded rod, and the rolling wheel is a rubber wheel.

[0010] Preferably, the upper end of the fixed plate is connected to a fixed frame, the fixed frame is located at the upper end of the movable plate, the second sofa cushion is hidden at the lower end of the fixed frame, the side end of the fixed frame is connected to a connecting ring, and the backrest board is rotatably connected in the connecting ring.

[0011] Preferably, the backrest board is located at the upper end of the second sofa cushion, a backrest cushion is provided at the side end of the backrest board, a headrest is connected to the upper end of the backrest cushion, and a folding cloth is connected between the backrest board and the fixing frame.

[0012] Preferably, the rear end of the backrest plate is rotatably connected to an electric telescopic rod, the electric telescopic rod includes a motor and an extension rod, and the lower end of the electric telescopic rod is rotatably connected to the side end of the fixed plate.

[0013] Preferably, air holes are provided in the backrest board, a fan is connected to the fixed frame, the air inlet end of the fan is connected to a dust screen, the air exhaust end of the fan is provided with a heater, the side end of the heater is connected to an air duct cover, the side end of the air duct cover is connected to the backrest board, and the air duct cover is a hose that can be bent and deformed.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model provides an adjusting threaded rod and an adjusting tube, so that the movable plate can be moved, thereby extending the second sofa cushion, thereby adjusting the length of the sofa, so that the device can be transformed into a "recliner". Specifically, the servo motor drives the worm to rotate, and the rotation of the worm and the worm gear will drive the adjusting threaded rod to rotate, and the rotation of the adjusting threaded rod will act on the adjusting tube. The movable plate cannot rotate under the action of the track rod and the track sleeve, so that under the action of the adjusting threaded rod and the auxiliary action of the support frame and the rolling wheel, it will be able to move on the track rod, thereby extending the second sofa cushion, and the first sofa cushion is flush with the second sofa cushion, and there is no concave-convex connection between the two, which can improve the comfort of the user. The telescopic deformation of the device does not require manual adjustment by the user. It has a high degree of intelligence, a simple structure, easy operation, and good stability. It can realize automatic telescopic deformation, and the sofa cushion always remains flat. It has good flexibility and applicability.

[0016] In the utility model, a backrest board and an electric telescopic rod are provided, and the electric telescopic rod can drive the backrest board to rotate around the connecting ring, so that the inclination of the backrest board can be adjusted. In this way, the user can adjust it according to personal sitting habits and comfort requirements, thereby providing better support and comfort.

[0017] In the present invention, a fan, a heater and an air duct cover are provided. When the fan is started, the wind will be discharged from the air vents of the backrest through the heater and the heat-conducting duct cover, so that the back can be blown with air. The blowing air can bring an immediate cool feeling, reduce the stuffiness of the back and neck, and improve the comfort of sitting or lying. The heater can adjust the temperature of the wind to adapt to different environments and climatic conditions, thereby improving the comfort of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a retractable sofa according to the present invention;

[0019] Figure 2 This is a schematic diagram of the second sofa cushion of a retractable sofa of the present invention being extended;

[0020] Figure 3 This is a schematic diagram of the lower end of a retractable sofa according to the present invention;

[0021] Figure 4 This is a schematic diagram of the position of the servo motor of a retractable sofa in the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of a retractable sofa.

[0023] In the figure: 1. Support base; 2. Fixed plate; 3. Adjustment threaded rod; 4. Track rod; 5. Moving plate; 6. Adjustment tube; 7. Track sleeve; 8. Worm gear; 9. Servo motor; 10. Worm; 11. Support frame; 12. Roller; 13. First sofa cushion; 14. Second sofa cushion; 15. Fixed frame; 16. Connecting ring; 17. Backrest board; 18. Backrest cushion; 19. Headrest; 20. Folding cloth; 21. Electric telescopic rod; 22. Fan; 23. Heater; 24. Air duct cover. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-5As shown, a retractable sofa includes a support base 1, the lower end of the support base 1 is connected to a cotton pad, the cotton pad is used to prevent the support base 1 from scratching the ground, the side end of the support base 1 is connected to an outer shell plate, the outer shell plate is used to prevent dust from hiding in the lower end of the device, both ends of the support base 1 are set in arcs to prevent bumps into the user, the upper end of the support base 1 is connected to a fixed plate 2, the upper end of the support base 1 is provided with a movable plate 5, the upper end of the movable plate 5 is provided with a first sofa cushion 13 and a second sofa cushion 14, the upper end of the fixed plate 2 is connected to a fixed frame 15, the fixed frame 15 is located at the upper end of the movable plate 5, and the second sofa cushion 14 is hidden at the lower end of the fixed frame 15.

[0026] The side end of the fixed plate 2 is rotatably connected to the adjusting threaded rod 3, the side end of the fixed plate 2 is connected to the track rod 4, the lower end of the movable plate 5 is connected to the adjusting tube 6, a threaded hole is opened in the adjusting tube 6, the adjusting threaded rod 3 is threadedly connected in the adjusting tube 6, the lower end of the movable plate 5 is connected to the track sleeve 7, the track rod 4 is used to support the track sleeve 7, thereby supporting the movable plate 5, the track sleeve 7 is slidably connected to the outer end of the track rod 4, which can prevent the movable plate 5 from tilting and shaking, and can enable the movable plate 5 to move smoothly.

[0027] The side end of the adjusting threaded rod 3 is connected to a worm gear 8, and the worm gear 8 is rotatably connected to the side end of the fixed plate 2. A servo motor 9 is connected inside the fixed plate 2, and the servo motor 9 is located at the lower end of the worm gear 8. The driving end of the servo motor 9 is connected to a worm 10, and the worm 10 is engaged with the worm gear 8. Starting the servo motor 9 will drive the worm 10 to rotate, thereby acting with the worm gear 8, and will drive the adjusting threaded rod 3 to rotate, thereby acting with the adjusting tube 6, and will drive the movable plate 5 to move, and when the servo motor 9 stops, the worm gear 8 and the worm 10 can achieve self-locking, thereby fixing the position of the movable plate 5.

[0028] The lower end of the movable plate 5 is connected to a support frame 11, and the support frame 11 is located in the support base 1. The support frame 11 is located at the lower end of the adjusting threaded rod 3. A rolling wheel 12 is provided at the lower end of the support frame 11. The rolling wheel 12 is a rubber wheel, which is used to facilitate the rolling wheel 12 to scratch the ground. The support frame 11 and the rolling wheel 12 are used to assist the movable plate 5 in moving and can support the movable plate 5.

[0029] The side end of the fixed frame 15 is connected to a connecting ring 16, and a backrest board 17 is rotatably connected in the connecting ring 16. The backrest board 17 is located at the upper end of the second sofa cushion 14. A back cushion 18 is provided at the side end of the backrest board 17. The back cushion 18 has good air permeability. A headrest 19 is connected to the upper end of the back cushion 18. The rear end of the backrest board 17 is rotatably connected to an electric telescopic rod 21. The electric telescopic rod 21 includes a motor and an extension rod. The lower end of the electric telescopic rod 21 is rotatably connected to the side end of the fixed plate 2. Through the electric telescopic rod 21, the backrest board 17 can be driven to rotate around the connecting ring 16, so that the inclination of the backrest board 17 can be adjusted. A folding cloth 20 is connected between the backrest board 17 and the fixed frame 15. The folding cloth 20 is used to prevent dust and other foreign matter from falling into the fixed frame 15 to avoid interference with the operation of the device.

[0030] There are air holes in the backrest board 17, and a fan 22 is connected to the fixed frame 15. The air inlet end of the fan 22 is connected to a dustproof net, which is used to filter dust. The air exhaust end of the fan 22 is provided with a heater 23, which can heat the air inhaled by the fan 22. The side end of the heater 23 is connected to an air duct cover 24, and the side end of the air duct cover 24 is connected to the backrest board 17. The air duct cover 24 is a hose and can be bent and deformed, so that when the inclination of the backrest board 17 is adjusted, the air duct cover 24 can still be used normally.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A retractable sofa, comprising a supporting frame (1), characterized in that: The upper end of the support base (1) is connected to a fixed plate (2), the side end of the fixed plate (2) is rotatably connected to an adjusting threaded rod (3), the side end of the fixed plate (2) is connected to a track rod (4), the upper end of the support base (1) is provided with a movable plate (5), the lower end of the movable plate (5) is connected to an adjusting tube (6), the lower end of the movable plate (5) is connected to a track sleeve (7), the side end of the adjusting threaded rod (3) is connected to a worm gear (8), the fixed plate (2) is internally connected to a servo motor (9), the driving end of the servo motor (9) is connected to a worm gear (10), the lower end of the movable plate (5) is connected to a support frame (11), the lower end of the support frame (11) is provided with a rolling wheel (12), and the upper end of the movable plate (5) is provided with a first sofa cushion (13) and a second sofa cushion (14).

2. The retractable sofa according to claim 1, characterized in that: The lower end of the support base (1) is connected to a cotton pad, the side end of the support base (1) is connected to an outer shell plate, both ends of the support base (1) are arranged in arcs, a threaded hole is opened in the adjustment tube (6), the adjustment threaded rod (3) is threadedly connected in the adjustment tube (6), and the track rod (4) is slidably connected in the track sleeve (7).

3. The retractable sofa according to claim 1, characterized in that: The worm wheel (8) is rotatably connected to the side end of the fixed plate (2), the servo motor (9) is located at the lower end of the worm wheel (8), the worm (10) is engaged with the worm wheel (8), the support frame (11) is located in the support base (1), the support frame (11) is located at the lower end of the adjusting threaded rod (3), and the rolling wheel (12) is a rubber wheel.

4. The retractable sofa according to claim 1, characterized in that: The upper end of the fixed plate (2) is connected to a fixed frame (15), the fixed frame (15) is located at the upper end of the movable plate (5), the second sofa cushion (14) is hidden at the lower end of the fixed frame (15), the side end of the fixed frame (15) is connected to a connecting ring (16), and a backrest plate (17) is rotatably connected inside the connecting ring (16).

5. The retractable sofa according to claim 4, characterized in that: The backrest board (17) is located at the upper end of the second sofa cushion (14); a backrest pad (18) is provided at the side end of the backrest board (17); a headrest (19) is connected to the upper end of the backrest pad (18); and a folding cloth (20) is connected between the backrest board (17) and the fixed frame (15).

6. The retractable sofa according to claim 4, characterized in that: The rear end of the backrest plate (17) is rotatably connected to an electric telescopic rod (21), which comprises a motor and an extension rod. The lower end of the electric telescopic rod (21) is rotatably connected to the side end of the fixed plate (2).

7. The retractable sofa according to claim 4, characterized in that: The backrest plate (17) is provided with an air vent, the fixed frame (15) is connected with a fan (22), the air inlet end of the fan (22) is connected with a dustproof net, the air outlet end of the fan (22) is provided with a heater (23), the side end of the heater (23) is connected with an air duct cover (24), the side end of the air duct cover (24) is connected with the backrest plate (17), and the air duct cover (24) is a hose that can be bent and deformed.

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