Angle-adjustable costume sofa

By setting driving components and transmission components in the sofa base, synchronous adjustment of sofa length and side handrails is achieved, which solves the problem of inconvenience in use of existing sofas and improves the comfort and practicality of adapting to people of different heights.

CN223143160UActive Publication Date: 2025-07-25DONGGUAN LEON-ITECH HOME FURNISHING CO LTD
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Patent Information

Application Number
CN202422592933.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-26
Publication Date
2025-07-25
Estimated Expiration
2034-10-26

AI Technical Summary

Technical Problem

The existing sofas with adjustable angles need to be operated and adjusted in different lengths and side handrails when used, which is inconvenient to use and cannot meet the comfort needs of people of different heights.

Method used

By setting a drive assembly and a transmission assembly inside the base, the driving member slides and drives the side handrail to rotate, synchronous adjustment of the sofa length and side handrails is achieved, and the angle of the pad is adjusted in combination with the electric telescopic rod to meet the needs of different users.

Benefits of technology

It realizes convenient adjustment of the sofa length and automatic rotation of the side armrests, improves the convenience of use and the comfort of adapting to people of different heights, and enhances the practicality of the sofa.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of sofas, and relates to an angle-adjustable comfortable sofa which comprises a base, a plurality of moving parts are arranged in the base in a sliding manner, the plurality of moving parts are arranged in a linear manner in the horizontal direction, and a driving assembly is arranged in the base. The driving assembly drives the multiple moving parts to slide oppositely or oppositely in the base, a first base plate is arranged at the top of each moving part, side armrests are arranged at the two ends of the top of the base in a transferring mode, transmission assemblies are arranged at the positions, located on the side armrests, in the base, and the two transmission assemblies are both matched with the driving assembly. When the moving parts move, the transmission assemblies drive the corresponding side armrests to rotate. The sofa has the advantages that the moving blocks move corresponding to the first moving seat and the second moving seat and simultaneously drive the corresponding gears to rotate, so that the side armrests can rotate while the length of the sofa is adjusted, separate operation is not needed, and the use convenience and practicability of the sofa are improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of sofas and relates to a comfort sofa with an adjustable angle. Background Art

[0002] A sofa is a multi-seat chair equipped with cushions. A backrest chair equipped with springs or thick foam plastics, with armrests on both sides, is a kind of soft furniture.

[0003] An automatically adjustable-angle sofa disclosed in Chinese Patent CN221769649U includes a base. The sofa body includes a base, a seat cushion, a rear armrest, a backrest, and a front armrest. A rear armrest is provided at the rear of the top of the base, and a backrest is provided on the left side of the base. A front armrest is hinged in front of the backrest. The rear armrest and the front armrest are arranged opposite to each other. A positioning hole for auxiliary use is opened in front of the backrest.

[0004] When using this sofa, first pull the operation board to fix the position of the front armrest with the positioning post; then pull the slot to pull out the auxiliary board from the inside of the storage slot, so that the support leg platform is separated from the storage slot. Finally, insert the pin rod into the corresponding pin holes opened in the auxiliary board and the support leg platform. Further, the user needs to operate at different places, and the use is not convenient enough.

[0005] A sofa with an adjustable angle disclosed in Chinese Patent CN219920685U includes a first connecting shaft, a toothed wheel, a limiting sleeve, an anti-rotation block, and a control rod. By pulling the control rod, the limiting sleeve is driven to move inside the armrest, further releasing the restriction on the rotation of the first connecting shaft driving the toothed wheel. Then, by adjusting the backrest, the movement of different limiting blocks inside different limiting holes is used to preliminarily limit the adjusted sofa. Then, after releasing the control rod, under the action of the first return spring force, the limiting sleeve is reversely controlled to reset to limit the rotation of the first connecting shaft, facilitating the adjustment of the sofa angle according to the backrest of the user.

[0006] The length of the device main body in this sofa is fixed. When the user lies on the sofa, it is suitable for people of a specified height. When a user with a larger height uses it, the body cannot stretch out or the legs are outside the entire sofa, thus reducing the comfort level. Content of the Utility Model

[0007] To solve the problems in the background art, the utility model provides a comfort sofa with an adjustable angle, which improves the convenience and practicality of the sofa.

[0008] To achieve the above object, the technical solution adopted by the present utility model is as follows: It includes a base, and a plurality of moving members are slidably arranged inside the base. The plurality of moving members are arranged in a straight line in the horizontal direction. A driving component is arranged inside the base, and the driving component drives the plurality of moving members to slide towards each other or away from each other inside the base;

[0009] A first cushion plate is arranged on the top of each moving member, and the same second cushion plate is slidably arranged on the inner side of the adjacent surfaces of two adjacent first cushion plates;

[0010] Side handrails are rotatably arranged at both ends of the top of the base, and transmission components are arranged inside the base at the positions of the side handrails. Both transmission components cooperate with the driving component, and when the moving members move, the transmission components drive the corresponding side handrails to rotate.

[0011] Furthermore, the plurality of moving members include two first moving seats and a plurality of second moving seats. The moving members at the outermost ends are first moving seats, and the plurality of second moving seats are arranged between the two first moving seats. Two sliding rods are fixedly connected inside each of the two first moving seats, and each sliding rod slidably penetrates through all the second moving seats;

[0012] The two sliding rods on one of the first moving seats slidably penetrate through the other first moving seat, and the two sliding rods on the other first moving seat slidably penetrate through one of the first moving seats.

[0013] Furthermore, the driving component includes a moving block, the moving block is slidably connected inside the base, the sliding direction of the moving block is perpendicular to the sliding direction of the moving members, the moving block is slidably arranged at the bottom of the plurality of moving members, a chute is opened at the position of each moving member on the moving block, the arrangement direction of the chute in the middle is parallel to the sliding direction of the moving block, and the chutes on both sides of the chute in the middle are both inclinedly arranged, and the inclined chutes are inclined from one end close to the chute in the middle to the other end gradually towards the nearest first moving seat;

[0014] A sliding shaft is fixedly connected to the bottom of each first moving seat and second moving seat, and the sliding shaft is slidably connected inside the corresponding chute.

[0015] Furthermore, two first electric telescopic rods are symmetrically and fixedly connected inside the base, and the output end of the first electric telescopic rod is fixedly connected to the moving block.

[0016] Furthermore, the first cushion plate on the second moving seat is fixedly connected to the corresponding second moving seat, the first cushion plate on one of the first moving seats is fixedly connected to the first moving seat, and a connecting plate is fixedly connected to the bottom surface of the first cushion plate on the other first moving seat, and the connecting plate is hinged to the top of the corresponding first moving seat through a hinge;

[0017] A second electric telescopic rod is rotatably connected inside the first moving seat at the bottom of the connecting plate, and the output end of the second electric telescopic rod is rotatably connected to the bottom surface of the connecting plate.

[0018] Furthermore, a backrest is fixedly connected to the top of the side of the base. Grooves are provided at both ends of the bottom of the backrest, and the ends of the side armrests are rotatably arranged in the corresponding grooves.

[0019] Rotating shafts are fixedly penetrated through the ends of both side armrests. The bottom ends of both rotating shafts are rotatably connected to the top surface of the base, and the top ends of the rotating shafts are rotatably connected to the top walls of the corresponding grooves.

[0020] Furthermore, the transmission component includes a connecting block. The connecting block is fixedly connected to one side of the bottom of the first moving seat, and a rack is fixedly connected to one side of the connecting block.

[0021] A gear is fixedly connected to the bottom end of each rotating shaft, and the gear meshes with the corresponding rack.

[0022] Furthermore, a guardrail is vertically slidably arranged inside the base on the side away from the backrest. Two insertion holes are provided at the top and bottom of the guardrail. Two pins adapted to the insertion holes are arranged at the top of the side of the base where the guardrail is located, and the pins are movably arranged in the insertion holes.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The adjustable-angle comfortable sofa is provided with a moving block. The moving block is slidably arranged at the bottoms of the first moving seat and the second moving seat. When in use, the moving block is pushed to move by the first electric telescopic rod, and the sliding groove will push the corresponding sliding shaft to move, so that the corresponding first moving seat and the second moving seat move, making there be a distance between adjacent two second moving seats and the first moving seat and the second moving seat. And the movement of the first moving seat will drive the connecting block and the rack to move, driving the corresponding gear to rotate, so that the side armrest rotates, making the side armrest rotate together while adjusting the length of the sofa, without the need for separate operations, and the use is more convenient.

[0025] 2. The adjustable-angle comfortable sofa is provided with two first moving seats, and several second moving seats are slidably arranged between the two first moving seats. When in use, the moving block is pushed to move by the first electric telescopic rod, and the sliding groove will push the corresponding sliding shaft to move, so that the corresponding first moving seat and the second moving seat move, making there be a distance between adjacent two second moving seats and the first moving seat and the second moving seat, making there be a distance between adjacent two first cushion plates, and further increasing the length of the whole sofa, being suitable for people with longer heights to use, and increasing the practical performance of the sofa. Description of the Drawings

[0026] Figure 1It is a schematic three-dimensional structure diagram of Embodiment 1 of the present utility model;

[0027] Figure 2 It is a schematic structure diagram of the moving block in Embodiment 1 of the present utility model;

[0028] Figure 3 It is a schematic structure diagram of the sliding rod in Embodiment 1 of the present utility model;

[0029] Figure 4 It is a schematic structure diagram of the connecting block in Embodiment 1 of the present utility model;

[0030] Figure 5 It is a schematic structure diagram of the second electric telescopic rod in Embodiment 1 of the present utility model;

[0031] Figure 6 It is the present utility model Figure 5 Schematic enlarged structure diagram of part A;

[0032] Figure 7 It is a schematic three-dimensional structure diagram of Embodiment 2 of the present utility model;

[0033] Figure 8 It is a schematic structure diagram of the guardrail in Embodiment 2 of the present utility model.

[0034] In the figure: 1, base; 2, backrest; 3, first electric telescopic rod; 4, moving block; 5, sliding groove; 6, sliding shaft; 7, first moving seat; 8, second moving seat; 9, sliding rod; 10, first cushion plate; 11, second cushion plate; 12, connecting block; 13, rack; 14, gear; 15, rotating shaft; 16, side armrest; 17, second electric telescopic rod; 18, support frame; 19, connecting shaft; 20, fixing plate; 21, connecting plate; 22, guardrail; 23, bolt; 24, jack. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] Embodiment 1: As Figures 1 - 6 shown, the technical solution adopted by the present utility model is as follows: an adjustable-angle comfortable sofa, including a base 1, and a plurality of moving parts are slidably arranged inside the base 1, and the plurality of moving parts are arranged in a straight line in the horizontal direction. Both ends of the moving part are slidably matched with the inner wall of the base 1.

[0037] The plurality of moving members include two first moving seats 7 and a plurality of second moving seats 8. The moving members at the two outermost ends are the first moving seats 7, and the plurality of second moving seats 8 are arranged between the two first moving seats 7. Two slide bars 9 are fixedly connected inside each of the two first moving seats 7, and each slide bar 9 slidably penetrates through all the second moving seats 8. The slide bars 9 limit the sliding of the second moving seats 8.

[0038] The two slide bars 9 on one of the first moving seats 7 slidably penetrate through the other first moving seat 7, and the two slide bars 9 on the other first moving seat 7 slidably penetrate through one of the first moving seats 7. The sliding of the first moving seats 7 is also limited by the slide bars 9.

[0039] A driving assembly is arranged inside the base 1, and the driving assembly drives the plurality of moving members to slide towards each other or away from each other inside the base 1. So that the moving members can move away from and close to each other, and the length of the distribution of the moving members is adjusted.

[0040] The driving assembly includes a moving block 4, and the moving block 4 is slidably connected inside the base 1.

[0041] Two first electric telescopic rods 3 are symmetrically and fixedly connected inside the base 1, and the output ends of the first electric telescopic rods 3 are fixedly connected to the moving block 4. The moving block 4 can be driven to slide inside the base 1 through the first electric telescopic rods 3.

[0042] The sliding direction of the moving block 4 is perpendicular to the sliding direction of the moving members, and the moving block 4 is slidably arranged at the bottom of the plurality of moving members. The moving members are supported by the moving block 4.

[0043] A chute 5 is provided at each position of the moving block 4 corresponding to each moving member. The layout direction of the chute 5 in the middle is parallel to the sliding direction of the moving block 4.

[0044] The chutes 5 on both sides of the chute 5 in the middle are both arranged obliquely. The inclined chutes 5 are inclined from one end close to the chute 5 in the middle to the other end towards the nearest first moving seat 7. The degree of inclination of the chute 5 gradually increases from one end close to the chute 5 in the middle to the other end.

[0045] A sliding shaft 6 is fixedly connected to the bottom of each first moving seat 7 and second moving seat 8, and the sliding shaft 6 is slidably connected inside the corresponding chute 5. When the chute 5 moves together with the moving block 4, the chute 5 in the middle slides on the corresponding sliding shaft 6 and does not drive the sliding shaft 6 to move. When the chutes 5 on both sides of the chute 5 in the middle slide on the corresponding sliding shafts 6, due to the inclined arrangement, the corresponding sliding shafts 6 will be driven to move.

[0046] A first cushion plate 10 is provided on the top of each moving member, and the same second cushion plate 11 is slidably arranged on the side of two adjacent first cushion plates 10 close to each other. The outsides of the first cushion plate 10 and the second cushion plate 11 are both coated with soft cushions, so that when the first cushion plate 10 moves with the moving member, the second cushion plate 11 can fill the gap between two adjacent first cushion plates 10.

[0047] The first cushion plate 10 located on the second moving seat 8 is fixedly connected to the corresponding second moving seat 8. The first cushion plate 10 on one of the first moving seats 7 is fixedly connected to the first moving seat 7, and a connecting plate 21 is fixedly connected to the bottom surface of the first cushion plate 10 on the other first moving seat 7. The connecting plate 21 is hinged to the top of the corresponding first moving seat 7 through a hinge. The connecting plate 21 can rotate on the top of the first moving seat 7, thereby driving the corresponding first cushion plate 10 to rotate and adjusting the angle of the first cushion plate 10.

[0048] A second electric telescopic rod 17 is rotatably connected in the first moving seat 7 at the bottom of the connecting plate 21, and the output end of the second electric telescopic rod 17 is rotatably connected to the bottom surface of the connecting plate 21. By adjusting the length of the second electric telescopic rod 17, the connecting plate 21 is pushed to rotate.

[0049] A fixing plate 20 is fixedly connected to the bottom of the connecting plate 21, and a U-shaped support frame 18 is fixedly connected to the top of the output end of the second electric telescopic rod 17. A connecting shaft 19 is fixedly penetrated through the fixing plate 20, and both ends of the connecting shaft 19 are rotatably connected to the support frame 18.

[0050] Side armrests 16 are rotatably arranged at both ends of the top of the base 1.

[0051] A backrest 2 is fixedly connected to the top of the side of the base 1, and grooves are provided at both ends of the bottom of the backrest 2. The ends of the side armrests 16 are rotatably arranged in the corresponding grooves.

[0052] Rotating shafts 15 are fixedly penetrated through the ends of the two side armrests 16, and the bottom ends of the two rotating shafts 15 are rotatably connected to the top surface of the base 1. The top ends of the rotating shafts 15 are rotatably connected to the top walls of the corresponding grooves. Activity grooves are provided on the sides of the two side armrests 16 close to the first moving seat 7, and the sides of the first moving seat 7 and the first cushion plate 10 are slidably arranged in the corresponding activity grooves.

[0053] Transmission components are arranged at the positions of the side armrests 16 inside the base 1, and both transmission components cooperate with the driving component. When the moving member moves, the transmission component drives the corresponding side armrest 16 to rotate.

[0054] The transmission assembly includes a connecting block 12, which is fixedly connected to one side of the bottom of the first moving seat 7. A rack 13 is fixedly connected to one side of the connecting block 12. When the first moving seat 7 moves, it will drive the connecting block 12 and the rack 13 to move together.

[0055] At the bottom end of each rotating shaft 15, a gear 14 is fixedly connected, and the gear 14 meshes with the corresponding rack 13. When the rack 13 moves, it will drive the corresponding gear 14 to rotate, thereby causing the rotating shaft 15 and the side armrest 16 to rotate.

[0056] Working principle:

[0057] When in use, when it is necessary to increase the length of the entire sofa, start the first electric telescopic rod 3 to make the first electric telescopic rod 3 extend.

[0058] The first electric telescopic rod 3 will push the moving block 4 to slide inside the base 1, and the moving block 4 will slide at the bottoms of the first moving seat 7 and the second moving seat 8.

[0059] The moving block 4 drives the sliding groove 5 to move, so that the sliding groove 5 moves on the corresponding sliding shaft 6. The middle sliding groove 5 will not drive the corresponding sliding shaft 6 to move, so the middle second moving seat 8 will not move.

[0060] Since the sliding grooves 5 on both sides of the middle sliding groove 5 are arranged obliquely, and the inclination degree of the sliding groove 5 gradually increases from one end close to the middle sliding groove 5 to the other end. Therefore, the inclined sliding groove 5 will push the corresponding sliding shaft 6 to move, causing the corresponding second moving seat 8 and the first moving seat 7 to move. And the moving distance of the first moving seat 7 at the end is the largest. The first moving seat 7 will drive the corresponding sliding rod 9 to move, and the sliding rod 9 limits the movement of the second moving seat 8.

[0061] There is a gap between two adjacent second moving seats 8 and the first moving seat 7, and between the second moving seats 8. The first moving seat 7 and the second moving seat 8 will drive the corresponding first cushion plate 10 to move, so that there is a gap between two adjacent first cushion plates 10. Thus, the length of the entire sofa is increased, making it suitable for people with taller heights to use.

[0062] After adjustment, the second cushion plate 11 can be moved to fill the gap between two adjacent first cushion plates 10.

[0063] When the two first moving seats 7 move, the sides of the first moving seat 7 and the first cushion plate 10 will move into the corresponding movable grooves. At the same time, it will drive the connecting block 12 to move, causing the rack 13 to move. The rack 13 drives the corresponding gear 14 to rotate, causing the rotating shaft 15 to rotate and the side armrest 16 to rotate. This avoids the side armrest 16 affecting the movement of the first moving seat 7.

[0064] After moving, start the second electric telescopic rod 17. When the second electric telescopic rod 17 extends, it will push the connecting plate 21 to rotate, causing the corresponding first cushion plate 10 to rotate, and the angle of the first cushion plate 10 can be adjusted.

[0065] When shortening the entire sofa, the first electric telescopic rod 3 shortens, which will pull the moving block 4 to move. The sliding groove 5 will drive the sliding shaft 6 to move, causing the first moving seat 7 and the second moving seat 8 to move towards the middle of the base 1, and the first moving seat 7 and the second moving seat 8 approach each other.

[0066] At the same time, the first moving seat 7 will drive the rack 13 to move, driving the side armrest 16 to rotate until it returns to the initial state.

[0067] Embodiment 2: As Figures 7 - 8 shown, the difference between this embodiment and Embodiment 1 is that: a guardrail 22 is vertically and slidably arranged inside the base 1 on the side away from the backrest 2. Two jacks 24 are opened at the top and bottom of the guardrail 22. Two pins 23 adapted to the jacks 24 are arranged at the top of the side of the base 1 where the guardrail 22 is located, and the pins 23 are movably arranged in the jacks 24. The guardrail 22 is fixed to the base 1 by passing the pins 23 through the jacks 24.

[0068] Working principle:

[0069] When placing a baby on the first cushion plate 10, pull up the guardrail 22 so that the top of the guardrail 22 is located between the two side armrests 16. Adjust the position of the guardrail 22 so that the position of the jack 24 is adapted to the position of the pin 23 on the base 1, and then pass the pin 23 through the jack 24 to fix the position of the guardrail 22, enabling the guardrail 22 to protect the baby and prevent the baby from falling off the first cushion plate 10 during use.

[0070] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An adjustable-angle comfort sofa, characterized in that, It includes a base (1). Inside the base (1), several moving parts are slidably arranged. The several moving parts are arranged in a straight line in the horizontal direction. A driving component is arranged inside the base (1). The driving component drives the several moving parts to slide towards each other or away from each other inside the base (1). At the top of each moving part, a first cushion plate (10) is arranged. Inside the adjacent surfaces of two adjacent first cushion plates (10) that are close to each other, the same second cushion plate (11) is slidably arranged. At both ends of the top of the base (1), side armrests (16) are rotatably arranged. Inside the base (1) at the positions of the side armrests (16), transmission components are arranged. Both transmission components cooperate with the driving component. When the moving parts move, the transmission components drive the corresponding side armrests (16) to rotate.

2. The adjustable-angle comfort sofa according to claim 1, wherein: The several moving parts include two first moving seats (7) and several second moving seats (8). The moving parts at the outermost ends are the first moving seats (7). The several second moving seats (8) are arranged between the two first moving seats (7). Inside both of the first moving seats (7), two slide bars (9) are fixedly connected. Each slide bar (9) slidably penetrates through all the second moving seats (8). The two slide bars (9) on one of the first moving seats (7) slidably penetrate through the other first moving seat (7), and the two slide bars (9) on the other first moving seat (7) slidably penetrate through one of the first moving seats (7).

3. The adjustable-angle comfort sofa according to claim 2, wherein: The driving component includes a moving block (4). The moving block (4) is slidably connected inside the base (1). The sliding direction of the moving block (4) is perpendicular to the sliding direction of the moving parts. The moving block (4) is slidably arranged at the bottom of the several moving parts. At each position of the moving block (4) corresponding to a moving part, a chute (5) is opened. The arrangement direction of the chute (5) in the middle is parallel to the sliding direction of the moving block (4). The chutes (5) on both sides of the chute (5) in the middle are both arranged obliquely. The inclined chutes (5) are inclined from one end close to the chute (5) in the middle to the other end gradually towards the nearest first moving seat (7). At the bottom of each first moving seat (7) and second moving seat (8), a sliding shaft (6) is fixedly connected. The sliding shaft (6) is slidably connected inside the corresponding chute (5).

4. The adjustable-angle comfort sofa according to claim 3, characterized in that: Inside the base (1), two first electric telescopic rods (3) are symmetrically and fixedly connected. The output end of the first electric telescopic rod (3) is fixedly connected to the moving block (4).

5. The adjustable-angle comfort sofa according to claim 2, characterized in that: The first cushion plate (10) on the second moving seat (8) is fixedly connected to the corresponding second moving seat (8). The first cushion plate (10) on one of the first moving seats (7) is fixedly connected to this first moving seat (7). On the bottom surface of the first cushion plate (10) on the other first moving seat (7), a connecting plate (21) is fixedly connected. The connecting plate (21) is hinged to the top of the corresponding first moving seat (7) through a hinge. Inside the first moving seat (7) at the bottom of the connecting plate (21), a second electric telescopic rod (17) is rotatably connected. The output end of the second electric telescopic rod (17) is rotatably connected to the bottom surface of the connecting plate (21).

6. The adjustable-angle comfort sofa according to claim 2, wherein: A backrest (2) is fixedly connected to the top of the side of the base (1). Grooves are formed at both ends of the bottom of the backrest (2), and the ends of the side armrests (16) are rotatably arranged in the corresponding grooves; Shafts (15) are fixedly penetrated through the ends of both side armrests (16). The bottom ends of the two shafts (15) are rotatably connected to the top surface of the base (1), and the top ends of the shafts (15) are rotatably connected to the top walls of the corresponding grooves.

7. The adjustable-angle comfort sofa according to claim 6, wherein: The transmission assembly includes a connecting block (12). The connecting block (12) is fixedly connected to one side of the bottom of the first moving seat (7), and a rack (13) is fixedly connected to one side of the connecting block (12); A gear (14) is fixedly connected to the bottom end of each shaft (15), and the gear (14) meshes with the corresponding rack (13).

8. The adjustable-angle comfort sofa according to claim 6, wherein: A guardrail (22) is vertically slidably arranged inside the base (1) on the side away from the backrest (2). Two insertion holes (24) are formed at the top and bottom of the guardrail (22). Two bolts (23) adapted to the insertion holes (24) are arranged at the top of the side of the base (1) where the guardrail (22) is located, and the bolts (23) are movably arranged in the insertion holes (24).

Citation Information

Patent Citations

  • Angle-adjustable sofa

    CN219920685U

  • Angle-adjustable automatic sofa

    CN221769649U