Hidden electric sofa expansion bracket

Abstract

The utility model relates to a telescopic frame, in particular to a hidden electric sofa telescopic frame. The hidden electric sofa telescopic frame comprises a backrest frame, a first electric telescopic rod, a base frame, a hand guard frame, an extension frame, a sliding block, an electric guide rail, a fixed seat, a lifting device and the like, two first electric telescopic rods are rotatably arranged on the left side of the base frame, output shafts of the two first electric telescopic rods are connected with the backrest frame, hand protection frames are arranged on the front side and the rear side of the base frame, a fixing base is arranged on the extension frame, an electric guide rail is installed on the fixing base, and a sliding block of the electric guide rail is fixedly connected with the base frame; lifting equipment is arranged on the lower sides of the base frame and the extension frame. Through the design of the extension frame, the sliding block and the electric guide rail, flexible extension and contraction are realized, and the requirements of a user on the length of the sofa in different occasions are met.

Description

Technical Field

[0001] The utility model relates to a telescopic frame, in particular to a hidden electric sofa telescopic frame. Background Art

[0002] The sofa is one of the furniture with a long history in home life. It is usually based on a wooden or metal frame, with soft fillings and covering materials, providing users with a comfortable sitting and lying experience. With the improvement of the quality of modern home life, people have put forward higher requirements for the functionality, comfort and aesthetics of furniture. As one of the indispensable furniture in home life, the design of the sofa is gradually developing in the direction of multi-function and intelligence.

[0003] Traditional sofas usually only have basic sitting and lying functions and lack flexibility and diversity. In recent years, some transformable sofas have appeared on the market, such as the electric sofa frame with authorization announcement number CN210493401U. This device can transform from a sitting position to a lying position. However, the above device has a complex structure and a single function. It cannot be adjusted in height according to user needs, which affects the user's comfort when using it. Utility Model Content

[0004] In order to overcome the shortcomings of traditional sofas that usually only have basic sitting and lying functions and lack flexibility and diversity, the utility model aims to solve the technical problem of providing a hidden electric sofa telescopic frame.

[0005] The technical solution is: a hidden electric sofa telescopic frame, including a backrest frame, No. 1 electric telescopic rod, a base frame, an arm guard, an extension frame, a slider, an electric guide rail, a fixed seat, a lifting device and casters. The left side of the base frame is rotatably provided with No. 1 electric telescopic rod, the output shaft of the No. 1 electric telescopic rod is connected to the backrest frame, hand guards are provided on the front and back sides of the base frame, a fixed seat is provided on the extension frame, an electric guide rail is installed on the fixed seat, the slider of the electric guide rail is fixedly connected to the base frame, a lifting device is provided on the lower side of the base frame and the extension frame, and a caster is installed on the lower right side of the lifting device.

[0006] As an improvement to the above scheme, the lifting device includes an adjusting rod, a support frame, a telescopic frame, a sliding block and a No. 2 electric telescopic rod. The lower part of the extension frame is slidably provided with an adjusting rod, and a caster is installed at the lower part of the adjusting rod. The support frame is provided with a telescopic frame. The upper and lower parts of the left side of the telescopic frame are rotatably connected to the base frame and the support frame respectively. Sliding blocks are provided at the upper and lower ends of the right side of the telescopic frame. Slide grooves are provided on the support frame and the base frame. The sliding blocks at the upper and lower ends of the telescopic frame are slidably connected to the slide grooves on the base frame and the support frame respectively. The No. 2 electric telescopic rod is rotatably provided at the lower left side of the telescopic frame, and the output shaft of the No. 2 electric telescopic rod is rotatably connected to the upper right side of the telescopic frame.

[0007] As an improvement to the above solution, an articulated frame is further included, one end of the articulated frame is rotatably connected to the base frame, and the other end is rotatably connected to the extension frame.

[0008] As an improvement to the above solution, the articulated frame has a three-section structure, and the middle section is rotatably connected to the left and right sections.

[0009] As an improvement to the above scheme, it also includes a connecting rod, a servo motor, a bearing seat, a nut and a screw rod. The two No. 1 electric telescopic rods are rotatably provided with a connecting rod, a servo motor is installed on the side of the base frame, the output shaft of the servo motor is connected to the screw rod, a bearing seat is installed on the side of the base frame, the bearing seat is rotatably connected to the screw rod, the screw rod is threadedly connected to the nut, and the nut is rotatably connected to the connecting rod.

[0010] Beneficial effects: 1. The utility model realizes flexible extension and contraction through the design of the extension frame, slider and electric guide rail, which meets the user's demand for sofa length in different occasions. The combined design of the servo motor, screw rod and nut makes the inclination angle of the backrest frame flexibly adjustable to meet the user's demand for different sitting postures, which not only improves the comfort of the sofa, but also provides users with more ways to rest and relax.

[0011] 2. The utility model uses the design of components such as the No. 2 electric telescopic rod and the telescopic frame to enable the height of the equipment to be flexibly adjusted according to the user's height and usage habits. This design not only improves the applicability of the equipment, but also provides users with a more comfortable and convenient sitting experience to adapt to the needs of different users or different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a three-dimensional structural diagram of the backrest frame, base frame and extension frame of the utility model.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the connecting rod, screw rod and nut of the utility model.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the support frame, telescopic frame and No. 2 electric telescopic rod of the present utility model.

[0016] The numbers in the figure are: 1. Backrest frame, 2. Electric telescopic rod No. 1, 3. Connecting rod, 4. Base frame, 5. Hand guard, 6. Articulated frame, 7. Extension frame, 8. Slider, 9. Electric guide rail, 10. Fixed seat, 11. Adjustment rod, 12. Caster, 13. Servo motor, 14. Bearing seat, 15. Nut, 16. Screw, 17. Support frame, 18. Telescopic frame, 19. Slide, 20. Sliding block, 21. Electric telescopic rod No. 2. DETAILED DESCRIPTION

[0017] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present application and are not intended to limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0018] A hidden electric sofa telescopic frame, such as Figure 1-4 As shown, it includes a backrest frame 1, a No. 1 electric telescopic rod 2, a base frame 4, a hand guard frame 5, an extension frame 7, a slider 8, an electric guide rail 9, a fixed seat 10, a lifting device and a caster 12. The left side of the base frame 4 is rotatably provided with two No. 1 electric telescopic rods 2, and the output shafts of the two No. 1 electric telescopic rods 2 are connected to the backrest frame 1. The base frame 4 is provided with hand guards 5 on the front and back sides. The extension frame 7 is provided with a fixed seat 10, and the electric guide rail 9 is installed on the fixed seat 10. The slider 8 of the electric guide rail 9 is fixedly connected to the base frame 4. The top of the hand guard frame 5 is higher than the extension frame 7. The lower sides of the base frame 4 and the extension frame 7 are provided with lifting equipment, and the lower right side of the lifting device is installed with a caster 12.

[0019] When it is necessary to extend the device, start the electric guide rail 9. Since the slider 8 is fixedly connected to the base frame 4, the electric guide rail 9 moves to the right, and the electric guide rail 9 will drive the fixed seat 10 and the extension frame 7 to move to the right. When the extension frame 7 moves to the required appropriate position, the electric guide rail 9 stops working, and the device reaches the extended state. On the contrary, if it is necessary to shrink the device, start the electric guide rail 9 again, and the electric guide rail 9 moves to the left. The movement of the electric guide rail 9 will drive the extension frame 7 to gradually return to its original position until the device is fully retracted. When it is necessary to adjust the height of the backrest frame 1, start the No. 1 electric telescopic rod 2, and the output shaft of the No. 1 electric telescopic rod 2 will drive the backrest frame 1 to move. After the backrest frame 1 moves to the appropriate position, stop the No. 1 electric telescopic rod 2, and the lifting device on the lower side of the base frame 4 and the extension frame 7 can adjust the overall height of the device.

[0020] like Figure 4As shown, the lifting device includes an adjusting rod 11, a support frame 17, a telescopic frame 18, a sliding block 20 and a No. 2 electric telescopic rod 21. The lower part of the extension frame 7 is slidably provided with two adjusting rods 11. The lower parts of the two adjusting rods 11 are both equipped with casters 12. A telescopic frame 18 is provided on the support frame 17. The upper and lower parts of the left side of the telescopic frame 18 are rotatably connected to the base frame 4 and the support frame 17 respectively. Sliding blocks 20 are provided at the upper and lower ends of the right side of the telescopic frame 18. Slide grooves 19 are provided on the support frame 17 and the base frame 4. The sliding blocks 20 at the upper and lower ends of the telescopic frame 18 are slidably connected to the slide grooves 19 on the base frame 4 and the support frame 17 respectively. The sliding block 20 can slide left and right under the restriction of the slide groove 19. The lower left side of the telescopic frame 18 is rotatably provided with a No. 2 electric telescopic rod 21. No. The output shaft of the electric telescopic rod 21 is rotatably connected to the upper right side of the telescopic frame 18. The extension of the output shaft of the No. 2 electric telescopic rod 21 will drive the telescopic frame 18 to extend upward. When the height of the device needs to be increased, the No. 2 electric telescopic rod 21 is started, and the output shaft of the No. 2 electric telescopic rod 21 is extended, driving the telescopic frame 18 to extend upward. The telescopic frame 18 drives the base frame 4 and other components thereon to rise, and the adjusting rod 11 is extended. When the base frame 4 rises to the required appropriate position, the No. 2 electric telescopic rod 21 stops working. Similarly, when the height of the device needs to be lowered, the No. 2 electric telescopic rod 21 is started, and the output shaft of the No. 2 electric telescopic rod 21 is retracted, driving the telescopic frame 18 to retract downward, the base frame 4 and other components thereon descend, and the adjusting rod 11 retracts.

[0021] like Figure 1 and Figure 2 As shown, it also includes an articulated frame 6, one end of the articulated frame 6 is rotatably connected to the base frame 4, and the other end is rotatably connected to the extension frame 7. The main function of the articulated frame 6 is to connect the base frame 4 and the extension frame 7, and to increase the stability and flexibility of the structure when expanding or contracting or adjusting the shape.

[0022] The articulated frame 6 has a three-section structure, and the middle section is rotatably connected to the left and right sections. The three-section structure of the articulated frame 6 not only enhances the flexibility and adaptability of the articulated frame 6, enabling it to easily cope with various usage scenarios and changes in demand, but also effectively improves the overall stability and durability of the sofa structure by dispersing the stress points.

[0023] like Figure 3As shown, it also includes a connecting rod 3, a servo motor 13, a bearing seat 14, a nut 15 and a screw rod 16. The two No. 1 electric telescopic rods 2 are rotatably provided with a connecting rod 3. The servo motors 13 are installed on the front and rear sides of the base frame 4. The output shaft of the servo motor 13 is connected to the screw rod 16. Two bearing seats 14 are installed on the front and rear sides of the base frame 4. The four bearing seats 14 are rotatably connected to the two screw rods 16 in a pairing manner. The screw rod 16 is threadedly connected to the nut 15, and the nut 15 is rotatably connected to the connecting rod 3. When adjustment is required When the backrest frame 1 is tilted at a certain angle, the servo motor 13 is started, and the output shaft of the servo motor 13 drives the screw rod 16 to rotate. The rotation of the screw rod 16 drives the nut 15 to move linearly along the screw rod 16. When the nut 15 moves, it drives the No. 1 electric telescopic rod 2 and the backrest frame 1 to rotate through the connecting rod 3 until a suitable tilting angle is reached. The bearing seat 14 can limit the position of the screw rod 16. When the servo motor 13 drives the screw rod 16 to rotate, the bearing seat 14 can allow the screw rod 16 to maintain a stable rotation trajectory without offset or deviation.

[0024] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A hidden electric sofa telescopic frame, including a backrest frame, a No. 1 electric telescopic rod, a base frame and a hand guard frame, the left side of the base frame is rotatably provided with a No. 1 electric telescopic rod, the output shaft of the No. 1 electric telescopic rod is connected to the backrest frame, and hand guard frames are provided on both sides of the base frame, which is characterized by: It also includes an extension frame, a slider, an electric guide rail, a fixed seat, a lifting device and casters. The extension frame is provided with a fixed seat, the fixed seat is installed with an electric guide rail, the slider of the electric guide rail is fixedly connected to the base frame, the base frame and the lower side of the extension frame are provided with a lifting device, and a caster is installed on the lower right side of the lifting device.

2. A hidden electric sofa telescopic frame as claimed in claim 1, characterized in that: The lifting device includes an adjusting rod, a support frame, a telescopic frame, a sliding block and a No. 2 electric telescopic rod. The lower part of the extension frame is slidably provided with an adjusting rod, and a caster is installed at the lower part of the adjusting rod. The support frame is provided with a telescopic frame. The upper and lower parts of the left side of the telescopic frame are rotatably connected to the base frame and the support frame respectively. Sliding blocks are provided at the upper and lower ends of the right side of the telescopic frame. Slide grooves are provided on the support frame and the base frame. The sliding blocks at the upper and lower ends of the telescopic frame are slidably connected to the slide grooves on the base frame and the support frame respectively. The No. 2 electric telescopic rod is rotatably provided at the lower left side of the telescopic frame, and the output shaft of the No. 2 electric telescopic rod is rotatably connected to the upper right side of the telescopic frame.

3. A hidden electric sofa telescopic frame as claimed in claim 2, characterized in that: The utility model also comprises an articulated frame, one end of which is rotatably connected to the base frame, and the other end of which is rotatably connected to the extension frame.

4. A hidden electric sofa telescopic frame as claimed in claim 3, characterized in that: The articulated frame is a three-section structure, and the middle section is rotatably connected to the left and right sections.

5. The hidden electric sofa telescopic frame according to claim 4, characterized in that: It also includes a connecting rod, a servo motor, a bearing seat, a nut and a screw rod. The two No. 1 electric telescopic rods are rotatably provided with a connecting rod. The servo motor is installed on the side of the base frame. The output shaft of the servo motor is connected to the screw rod. The bearing seat is installed on the side of the base frame. The bearing seat is rotatably connected to the screw rod. The screw rod is threadedly connected to the nut, and the nut is rotatably connected to the connecting rod.

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