Household linkage mechanism of sofa

Abstract

The utility model belongs to the technical field of sofas, and particularly relates to a household linkage mechanism of a sofa, which comprises a supporting part, a driving part, a backrest part, a leg supporting piece and an armrest part, the supporting part comprises a supporting frame seat, a driving equipment groove, a backrest connecting groove, a sliding groove and an armrest groove, and the driving equipment groove is arranged at the rear end of the right side of the supporting frame seat. A backrest connecting groove is formed in the rear side of the supporting frame seat, sliding grooves are formed in the two sides of the interior of the supporting frame seat, and armrest grooves are formed in the left side and the right side of the top of the supporting frame seat; the driving part is arranged in the driving equipment groove; the backrest component is arranged in the backrest connecting groove, in the moving process of the backrest component, the leg supporting piece is driven to slide and unfold forwards to support the legs of the user, meanwhile, in the moving process of the backrest component, the armrest component is synchronously driven to move, the armrest component is turned outwards, the inner side space is enlarged, the user can turn over and release the hands conveniently, and the comfort degree of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa technical field, specifically is a sofa's home linkage mechanism. BACKGROUND

[0002] Sofa is a kind of multi-seat chair with soft cushion, and it is a kind of soft furniture with armrests on both sides. With the continuous improvement of people's life requirements, various functional intelligent sofas appear. At present, sofas are divided into soft sofas and hard sofas;

[0003] The existing single sofa is fixed in armrest structure when using, needs to lie down, and the user manually adjusts to unfold, but after unfolding, the armrest is limited in the space on both sides, which affects the user to turn over and put hands, therefore a sofa's home linkage mechanism is provided. SUMMARY

[0004] This part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or the problems existing in the home linkage mechanism of the existing sofa, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a sofa's home linkage mechanism, which drives the leg support to slide forward and unfold during the movement of the backrest part, supports the user's legs, at the same time, the backrest part is driven to move synchronously during the movement of the backrest part, so that the armrest part is turned outwards, the inner space is expanded, the user is convenient to turn over and put hands, and the user's comfort is improved.

[0007] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0008] A sofa's home linkage mechanism, comprising:

[0009] Supporting part, including support frame seat, drive equipment slot, backrest connecting slot, sliding slot and armrest slot, the right rear end of the support frame seat is provided with the drive equipment slot, the rear side of the support frame seat is provided with the backrest connecting slot, both sides of the support frame seat inside are provided with the sliding slot, and the left and right sides of the top of the support frame seat are provided with the armrest slot;

[0010] Driving part, arranged in the drive equipment slot;

[0011] Backrest part, arranged in the backrest connecting slot and connected with the driving part.

[0012] leg support, arranged in the sliding groove and connected with the backrest part;

[0013] armrest part, arranged in the armrest groove and connected with the backrest part.

[0014] As a preferred scheme of the household linkage mechanism of the sofa, the driving part comprises a driving motor and a worm, the driving motor is fixed in the driving device groove, and the worm is arranged to protrude from the top of the support frame base.

[0015] As a preferred scheme of the household linkage mechanism of the sofa, the backrest part comprises a backrest, a backrest shaft, a worm wheel, a support rod and a driving bevel gear, the lower end of the backrest is fixedly arranged with the backrest shaft, the backrest shaft is rotatably connected into the backrest connecting groove, the right end of the backrest shaft is arranged with the worm wheel connected with the worm, the bottom of the backrest is arranged with the support rod, and the backrest shaft is arranged with the driving bevel gear on both sides.

[0016] As a preferred scheme of the household linkage mechanism of the sofa, the leg support comprises a support pad and a swing rod, the support pad is slidably connected in the sliding groove, the right side wall of the support pad is hingedly arranged with the swing rod, and the right end of the swing rod is hingedly arranged at the lower end of the support rod.

[0017] As a preferred scheme of the household linkage mechanism of the sofa, the armrest part comprises an armrest, an armrest shaft and a driven bevel gear, the lower end of the armrest is arranged with the armrest shaft, the armrest shaft is rotatably connected in the armrest groove, and the right end of the armrest shaft is arranged with the driven bevel gear meshed with the driving bevel gear.

[0018] As a preferred scheme of the household linkage mechanism of the sofa, the bottom of the support frame base is arranged with uniformly distributed leveling feet.

[0019] As a preferred scheme of the household linkage mechanism of the sofa, the driving motor is a mute motor.

[0020] Compared with the prior art, the backrest part is driven by the driving part to move backward, so that the user can lie backward conveniently, the leg support is driven to slide forward and expand during the movement of the backrest part, the leg of the user is supported, the armrest part is simultaneously driven to move during the movement of the backrest part, the armrest part is turned outward to form a linkage expansion structure, the inner space is expanded, the user can turn over and put hands conveniently, and the comfort of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical scheme of the embodiments of the present application more clear, the present application will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings. Among them:

[0022] Figure 1 It is a schematic view of the shaft side structure of the present application.

[0023] Figure 2 It is a schematic view of the support component structure of the present application.

[0024] Figure 3 It is a schematic view of the driving component structure of the present application.

[0025] Figure 4 It is a schematic view of the backrest component structure of the present application.

[0026] Figure 5 It is a schematic view of the leg support structure of the present application.

[0027] Figure 6 It is a schematic view of the handrail component of the present application.

[0028] In the figure: 100 support component, 110 support frame seat, 120 driving device slot, 130 backrest connecting slot, 140 sliding slot, 150 handrail slot, 200 driving component, 210 driving motor, 220 worm, 300 backrest component, 310 backrest, 320 backrest shaft, 330 worm wheel, 340 support rod, 350 driving bevel gear, 400 leg support, 410 support pad, 420 swing lever, 500 handrail component, 510 handrail, 520 handrail shaft, 530 driven bevel gear. DETAILED DESCRIPTION

[0029] In order to make the technical scheme of the embodiments of the present application more clear, the present application will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings. Among them:

[0030] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] This utility model provides a home linkage mechanism for a sofa. During the movement of the backrest component, the leg support component slides forward and unfolds to support the user's legs. Simultaneously, the movement of the backrest component also drives the armrest component to move, causing it to fold outward and expand the inner space, making it easier for the user to turn over and release their arms, thus improving user comfort. Please refer to [link / reference]. Figures 1-6 It includes: support component 100, drive component 200, backrest component 300, leg support component 400 and armrest component 500.

[0034] The support component 100 includes a support frame 110, a drive device slot 120, a backrest connection slot 130, a slide groove 140, and an armrest slot 150. The drive device slot 120 is provided at the rear right side of the support frame 110, the backrest connection slot 130 is provided at the rear side of the support frame 110, the slide grooves 140 are provided on both sides inside the support frame 110, and the armrest slots 150 are provided on both the left and right sides of the top of the support frame 110.

[0035] The drive component 200 is disposed in the drive equipment slot 120. The drive component 200 includes a drive motor 210 and a worm gear 220. The drive motor 210 is fixed in the drive equipment slot 120, and the output end of the drive motor 210 is provided with a worm gear 220 extending out of the top of the support frame 110.

[0036] The backrest component 300 is disposed in the backrest connecting groove 130 and connected to the drive component 200. Specifically, the backrest component 300 includes a backrest 310, a backrest shaft 320, a worm gear 330, a support rod 340 and a drive bevel gear 350. The backrest shaft 320 is fixedly disposed at the lower end of the backrest 310 and is rotatably connected to the backrest connecting groove 130. The worm gear 330 connected to the worm 220 is disposed at the right end of the backrest shaft 320. The support rod 340 is disposed at the bottom of the backrest 310 and the drive bevel gears 350 are disposed on both sides of the backrest shaft 320.

[0037] The drive motor 210 drives the worm gear 220 to rotate, which in turn drives the worm wheel 330 to rotate. The worm wheel 330 drives the backrest 310 to flip backward via the backrest shaft 320, so that the backrest 310 can be laid flat, making it convenient for the user to lie down.

[0038] The leg support 400 is arranged in the sliding groove 140 and connected with the backrest part 300. Specifically, the leg support 400 comprises a support pad 410 and a swing lever 420. The support pad 410 is slidingly connected in the sliding groove 140. The right side wall of the support pad 410 is hingedly connected with the swing lever 420. The right end of the swing lever 420 is hingedly connected with the lower end of the support rod 340.

[0039] When the backrest 310 is backwardly turned, the support rod 340 is driven to move leftward. The lower end of the support rod 340 pushes the support pad 410 through the swing lever 420, so that the support pad 410 is slidingly moved leftward and is moved out of the inner side of the support frame 110 to support the legs of the user.

[0040] The armrest part 500 is arranged in the armrest groove 150 and connected with the backrest part 300. Specifically, the armrest part 500 comprises an armrest 510, an armrest shaft 520 and a driven bevel gear 530. The lower end of the armrest 510 is provided with the armrest shaft 520. The armrest shaft 520 is rotationally connected in the armrest groove 150. The right end of the armrest shaft 520 is provided with the driven bevel gear 530 which is engaged with the driving bevel gear 350.

[0041] When the backrest 310 is backwardly turned, the backrest shaft 320 drives the driving bevel gear 350 to rotate. The driving bevel gear 350 is engaged to drive the driven bevel gear 530 to rotate. The driven bevel gear 530 drives the armrest 510 to outwardly turn through the armrest shaft 520.

[0042] In order to improve the stability of the sofa, the bottom of the support frame 110 is provided with evenly distributed leveling feet to adjust the horizontal stability of the sofa.

[0043] In order to reduce the environmental noise, the driving motor 210 is a mute motor.

[0044] In specific use, the user sits on the support frame 110. When the user needs to lie backward, the driving motor 210 drives the worm 220 to rotate. The worm 220 drives the worm gear 330 to rotate. The worm gear 330 drives the backrest 310 to turn backward through the backrest shaft 320, so that the backrest 310 is laid flat to facilitate the user to lie down. When the backrest 310 is turned backward, the support rod 340 is driven to move leftward. The lower end of the support rod 340 pushes the support pad 410 through the swing lever 420, so that the support pad 410 is slidingly moved leftward and is moved out of the inner side of the support frame 110 to support the legs of the user. When the backrest 310 is turned backward, the backrest shaft 320 drives the driving bevel gear 350 to rotate. The driving bevel gear 350 is engaged to drive the driven bevel gear 530 to rotate. The driven bevel gear 530 drives the armrest 510 to outwardly turn through the armrest shaft 520, so as to expand the inner space and facilitate the user to turn over and put hands.

[0045] Although the utility model has been described above with reference to the embodiments, various modifications can be made thereto, and equivalent replacements can be made to the components thereof, without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any manner, and the combinations are not exhaustively described in the specification merely for the purpose of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A home linkage mechanism for a sofa, characterized in that, The utility model relates to a multifunctional chair, which comprises a support component (100), a driving component (200), a backrest component (300), a leg support (400) and a handrail component (500). The support component (100) comprises a support seat (110), a driving device slot (120), a backrest connecting slot (130), a sliding slot (140) and a handrail slot (150). The driving component (200) is arranged in the driving device slot (120). The backrest component (300) is arranged in the backrest connecting slot (130) and connected with the driving component (200). The leg support (400) is arranged in the sliding slot (140) and connected with the backrest component (300). The handrail component (500) is arranged in the handrail slot (150) and connected with the backrest component (300).

2. A home linkage mechanism for a sofa according to claim 1, wherein, The driving component (200) comprises a driving motor (210) and a worm (220).

3. A home linkage mechanism for a sofa according to claim 2, wherein, The driving motor (210) is fixed in the driving device slot (120), and the worm (220) protruding from the top of the support seat (110) is arranged at the output end of the driving motor (210).

4. A home linkage mechanism for a sofa according to claim 3, wherein, The backrest component (300) comprises a backrest (310), a backrest shaft (320), a worm wheel (330), a support rod (340) and a driving bevel gear (350).

5. A home linkage mechanism for a sofa according to claim 3, wherein, The backrest (310) is fixedly arranged at the lower end of the backrest shaft (320), which is rotatably connected to the backrest connecting slot (130).

6. The home linkage mechanism of claim 1, wherein, The backrest shaft (320) is arranged at the right end of the backrest (310) and connected with the worm (220).

7. A home linkage mechanism for a sofa according to claim 2, wherein, The backrest (310) is arranged at the bottom of the backrest shaft (320) and connected with the support rod (340). The backrest shaft (320) is arranged at the two sides of the backrest (310) and connected with the driving bevel gear (350). The leg support (400) comprises a support pad (410) and a swing rod (420). The support pad (410) is slidably connected in the sliding slot (140). The swing rod (420) is hingedly connected at the right end of the support pad (410) and the lower end of the support rod (340). The handrail component (500) comprises a handrail (510), a handrail shaft (520) and a driven bevel gear (530). The handrail (510) is arranged at the lower end of the handrail shaft (520) which is rotatably connected in the handrail slot (150). The handrail shaft (520) is arranged at the right end of the handrail (510) and engaged with the driven bevel gear (530) of the driving bevel gear (350). The support seat (110) is arranged at the bottom and evenly distributed with leveling feet. The driving motor (210) is a silent motor.

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