Seat frame without leaning against wall and seat

Abstract

The utility model discloses a wall-leaning-free seat frame and a seat. The zero wall-leaning seat frame comprises a base; the movable frame is movably assembled on the base; the first driving mechanism is connected to the movable frame and used for driving the movable frame to move forwards or backwards; the stretching mechanism is assembled on the movable frame and can be switched among a sitting posture state, a TV posture state and a lying posture state. According to the utility model, the movable frame is driven by the first driver to move forwards or backwards, so that the movable frame can drive the stretching mechanism to move forwards or backwards, and therefore, the stretching mechanism can be kept against a wall in any state, interference between the stretching mechanism and the outside is effectively avoided, and the stretching mechanism can be prevented from being damaged. Moreover, the indoor space can be fully utilized, and better use experience is brought to the user.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a zero-wall-adjacent seat frame and a seat. Background Art

[0002] With the improvement of people's living standards, multifunctional sofas or seats have become widely used furniture in home life. Among them, multifunctional sofas or seats can usually be adjusted to a sitting posture state when sitting normally, a TV posture state with the legs extended, and a lying posture state with both the legs and the back fully extended.

[0003] In existing products, when the seat is switched to the lying posture state, generally the backrest of the seat directly flips downwards to provide enough space for the user to stretch the back. If the backrest of the seat is placed against the wall, when the seat is switched to the lying posture position, the backrest will touch the adjacent wall, resulting in interference with the rotation of the backrest. If the seat is not completely against the wall, it will lead to low utilization rate of the indoor space. And the weight of the seat itself is relatively large, and the user of the seat may not be able to move the seat by himself / herself to make enough space for the seat to switch postures, especially for the user of an elderly seat, which results in obvious limitations in the use of the seat and brings a bad use experience to the user. Summary of the Utility Model

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a zero-wall-adjacent seat frame, which can keep zero-wall-adjacent in any state of the stretching mechanism, bringing a better use experience to the user.

[0005] A zero-wall-adjacent seat frame according to an embodiment of the utility model includes: a base; a movable frame, the movable frame is movably assembled on the base; a first driving mechanism, the first driving mechanism is connected to the movable frame and is used to drive the movable frame to move forward or backward; a stretching mechanism, the stretching mechanism is assembled on the movable frame and can be switched between a sitting posture state, a TV posture state and a lying posture state.

[0006] In this zero-wall-adjacent seat frame, the first driving mechanism drives the movable frame to move forward or backward, so that the movable frame can drive the stretching mechanism to move forward or backward, thereby realizing that the stretching mechanism can keep zero-wall-adjacent in any state, effectively avoiding interference between the stretching mechanism and the outside world, and being able to make full use of the indoor space, bringing a better use experience to the user.

[0007] According to some embodiments of the utility model, it further includes a slide rail, the slide rail is fixedly connected to the movable frame, and the base is slidably connected to the slide rail.

[0008] According to some embodiments of the present utility model, the first driving mechanism includes a rotating motor and a driving wheel. The rotating motor is fixedly connected to the slide rail, the base abuts against the driving wheel, the driving wheel is connected to the output shaft of the rotating motor, and the rotating motor drives the driving wheel to rotate so that the movable frame moves forward or backward.

[0009] According to some embodiments of the present utility model, the first driving mechanism includes a telescopic motor and a telescopic slider. The telescopic motor is fixedly connected to the base, the telescopic slider is fixedly connected to the movable frame, the telescopic slider is connected to the output shaft of the telescopic motor, and the telescopic motor can drive the telescopic slider to move forward or backward.

[0010] According to some embodiments of the present utility model, it further includes rollers, and the rollers are assembled at the lower end of the movable frame.

[0011] According to some embodiments of the present utility model, the stretching mechanism includes a backrest assembly, a leg assembly and a linkage assembly, where: the linkage assembly is assembled on the movable frame; the backrest assembly is hinged to the rear end of the linkage assembly, and the linkage assembly can drive the backrest assembly to rotate; the leg assembly is hinged to the front end of the linkage assembly, and the linkage assembly can drive the leg assembly to stretch.

[0012] According to some embodiments of the present utility model, the linkage assembly includes a stretching motor, a first linkage rod, a second linkage rod, a third linkage rod, a fourth linkage rod, a fifth linkage rod, a sixth linkage rod, a seventh linkage rod, an eighth linkage rod, a ninth linkage rod and a tenth linkage rod. The stretching motor is hinged to the movable frame, the first linkage rod is hinged to the output shaft of the stretching motor, one end of the second linkage rod is fixedly connected to the first linkage rod, the other end of the second linkage rod is hinged to the movable frame, the third linkage rod is hinged between the first linkage rod and the fourth linkage rod, the fourth linkage rod is fixedly connected to the fifth linkage rod, the sixth linkage rod is hinged between the fifth linkage rod and the seventh linkage rod, the seventh linkage rod and the eighth linkage rod are arranged on the movable frame in the front-back direction, the ninth linkage rod is fixedly connected to the eighth linkage rod, the tenth linkage rod is hinged between the fifth linkage rod and the ninth linkage rod, the leg assembly is hinged to the front end of the fifth linkage rod, and the backrest assembly is hinged to the rear end of the fifth linkage rod.

[0013] According to some embodiments of the present utility model, the backrest assembly includes a backrest mounting frame and a backrest linkage rod. The front end of the backrest mounting frame is hinged to the rear end of the fifth linkage rod, and the rear end of the backrest mounting frame is hinged to the eighth linkage rod through the backrest linkage rod.

[0014] According to some embodiments of the present utility model, the leg assembly includes a first leg link, a second leg link, a first foot pad mounting bracket, a third leg link, a second foot pad mounting bracket, a fourth leg link, a fifth leg link, a sixth leg link, a seventh leg link, and an eighth leg link. The first leg link is hinged between the front end of the fifth linkage rod and the rear end of the second leg link. The front end of the second leg link is hinged to the first foot pad mounting bracket. The third leg link is hinged between the first foot pad mounting bracket and the second foot pad mounting bracket. The fourth leg link is hinged between the fifth leg link and the second foot pad mounting bracket. The rear end of the fifth leg link and the rear end of the first foot pad mounting bracket are both hinged to the sixth leg link. The seventh leg link is hinged between the sixth leg link and the sixth linkage rod. The eighth leg link is hinged between the first leg link and the sixth linkage rod.

[0015] Based on the same inventive concept, the present utility model also provides a seat, comprising: the zero-wall-leaning seat frame as described above.

[0016] In summary, the zero-wall-leaning seat frame provided by the present utility model has the following technical effects:

[0017] The driving of the movable frame forward or backward by the first driving machine enables the movable frame to drive the stretching mechanism forward or backward, so that the stretching mechanism can maintain zero-wall-leaning in any state, effectively avoiding interference between the stretching mechanism and the outside world, and being able to make full use of the indoor space, bringing a good user experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic structural diagram of the movable frame in State 1 according to an embodiment of the present utility model;

[0019] Figure 2 Schematic structural diagram of the movable frame in State 2 according to an embodiment of the present utility model;

[0020] Figure 3 Schematic structural diagram of the stretching mechanism in the sitting state according to an embodiment of the present utility model;

[0021] Figure 4 Another schematic structural diagram of the stretching mechanism in the sitting state according to an embodiment of the present utility model;

[0022] Figure 5 For Figure 4 Cross-sectional view taken along the A-A direction;

[0023] Figure 6 For Figure 4 Side view;

[0024] Figure 7 Structural schematic diagram of the stretching mechanism in the lying position according to an embodiment of the present utility model;

[0025] Figure 8 Another structural schematic diagram of the stretching mechanism in the lying position according to an embodiment of the present utility model;

[0026] Figure 9 It is Figure 8 Cross-sectional view taken along the B-B direction of

[0027] Figure 10 It is Figure 8 Side view of

[0028] Among them, the meanings of the reference numerals are as follows:

[0029] 1, base; 2, movable frame; 3, first driving mechanism; 31, telescopic motor; 32, telescopic slider; 4, stretching mechanism; 41, backrest assembly; 4101, backrest mounting frame; 4102, backrest connecting rod; 42, leg assembly; 4201, first leg connecting rod; 4202, second leg connecting rod; 4203, first foot pad mounting frame; 4204, third leg connecting rod; 4205, second foot pad mounting frame; 4206, fourth leg connecting rod; 4207, fifth leg connecting rod; 4208, sixth leg connecting rod; 4209, seventh leg connecting rod; 4210, eighth leg connecting rod; 43, linkage assembly; 4301, stretching motor; 4302, first linkage rod; 4303, second linkage rod; 4304, third linkage rod; 4305, fourth linkage rod; 4306, fifth linkage rod; 4307, sixth linkage rod; 4308, seventh linkage rod; 4309, eighth linkage rod; 4310, ninth linkage rod; 4311, tenth linkage rod; 5, slide rail; 6, roller. Detailed implementation manners

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model.

[0033] Referring to Figure 1 and Figure 2 , this utility model discloses a zero-wall -leaning seat frame. The zero-wall -leaning seat frame includes a base 1, a movable frame 2, a first driving mechanism 3, and an extension mechanism 4. In some embodiments, the movable frame 2 is movably assembled to the base 1; the first driving mechanism 3 is connected to the movable frame 2 and is used to drive the movable frame 2 to move forward or backward; the extension mechanism 4 is assembled to the movable frame 2 and can be switched between a sitting posture state, a TV posture state, and a lying posture state. Preferably, the first driving mechanism drives the movable frame 2 to move forward or backward, so that the movable frame 2 can drive the extension mechanism 4 to move forward or backward, so as to ensure that the extension mechanism 4 can maintain zero -wall -leaning in any state, effectively avoid interference between the extension mechanism 4 and the outside world, and can make full use of the indoor space, bringing a better user experience to the user.

[0034] Referring to Figure 1 and Figure 2 , in some embodiments, it further includes a slide rail 5. The slide rail 5 is fixedly connected to the movable frame 2, and the base 1 is slidably connected to the slide rail 5. In this way, the first driving mechanism 3 drives the movable frame 2 to move forward or backward, and the movable frame 2 can be slidably connected to the base 1 through the slide rail 5, thereby reducing the friction between the movable frame 2 and the base 1, and the movement trajectory of the movable frame 2 can be defined by the slide rail 5; optionally, the slide rail 5 extends in the front -rear direction, so as to define the first driving mechanism 3 to drive the movable frame 2 to move forward or backward. Optionally, when the movable frame 2 moves backward to the extreme position, it is defined as state one. Referring to Figure 1 , when the movable frame 2 moves forward to the extreme position, it is defined as state two. Referring to Figure 2 , preferably, the first driving mechanism 3 drives the movable frame 2 to move forward or backward, so that the movable frame 2 is switched between state one and state two, thereby driving the distance between the extension mechanism 4 and the wall to be 0 - 400 mm.

[0035] In some embodiments, the first driving mechanism 3 includes a rotating motor and a driving wheel. The rotating motor is fixedly connected to the slide rail 5. The base 1 abuts against the driving wheel. The driving wheel is connected to the output shaft of the rotating motor. The rotating motor drives the driving wheel to rotate, so that the movable frame 2 moves forward or backward. In this way, the rotating motor drives the driving wheel to rotate, thereby driving the slide rail 5 to move forward or backward, so that the slide rail 5 can drive the movable frame 2 to move forward or backward, thus realizing zero-wall contact. Further, corresponding teeth may be provided on the outer peripheral side of the driving wheel, and a rack meshing with the teeth may be provided on the base 1. In this way, the teeth on the outer peripheral side of the driving wheel can mesh with the rack, so that when the rotating motor drives the driving wheel to rotate, the slide rail 5 can be efficiently driven to move forward or backward, so that the slide rail 5 can drive the movable frame 2 to move forward or backward.

[0036] Refer to Figure 1 and Figure 2 , in some embodiments, the first driving mechanism 3 includes a telescopic motor 31 and a telescopic slider 32. The telescopic motor 31 is fixedly connected to the base 1. The telescopic slider 32 is fixedly connected to the movable frame 2. The telescopic slider 32 is connected to the output shaft of the telescopic motor 31. The telescopic motor 31 can drive the telescopic slider 32 to move forward or backward. In this way, the telescopic motor 31 drives the telescopic slider 32 to move forward or backward, so that the movable frame 2 fixedly connected to the telescopic slider 32 moves forward or backward. Optionally, a slide rail 5 is provided between the movable frame 2 and the base 1. The slide rail 5 is fixedly connected to the movable frame 2. The base 1 is slidably connected to the slide rail 5. In this way, when the telescopic motor 31 drives the telescopic slider 32 to move forward or backward, the telescopic slider 32 synchronously drives the movable frame 2 to move forward or backward. The movable frame 2 drives the slide rail 5 to slide relative to the base 1, thereby reducing the friction between the movable frame 2 and the base 1.

[0037] Refer to Figure 5 , Figure 6 , Figure 9 and Figure 10 , in some embodiments, a roller 6 is further included. The roller 6 is assembled at the lower end of the movable frame 2. In this way, the movable frame 2 can abut against the ground through the roller 6 to reduce the friction between the movable frame 2 and the ground when the movable frame 2 moves forward or backward, improve the smoothness of the movement of the movable frame 2, and optimize the user experience.

[0038] Refer to Figure 3 , Figure 4 , Figure 7 and Figure 8, in some embodiments, the stretching mechanism 4 includes a backrest assembly 41, a leg assembly 42, and a linkage assembly 43, where: the linkage assembly 43 is assembled to the movable frame 2; the backrest assembly 41 is hinged to the rear end of the linkage assembly 43, and the linkage assembly 43 can drive the backrest assembly 41 to rotate; the leg assembly 42 is hinged to the front end of the linkage assembly 43, and the linkage assembly 43 can drive the leg assembly 42 to expand and contract. In this way, when the first driving machine drives the movable frame 2 to move forward or backward, the movable frame 2 can synchronously drive the linkage assembly 43 to move forward or backward, thereby driving the linkage assembly 43 to drive the backrest assembly 41 and the leg assembly 42 to move forward or backward. Moreover, when the linkage assembly 43 moves forward or backward, it can also drive the backrest assembly 41 to rotate and the leg assembly 42 to expand and contract, so that the state switching of the stretching mechanism 4 is independent of the movement of the movable frame 2, can meet the requirements of various scenarios, and can achieve zero-wall contact in any state of the stretching mechanism 4, effectively avoiding interference between the stretching mechanism 4 and the outside world, and can make full use of the indoor space, bringing a good user experience to the user.

[0039] Refer to Figure 5 , Figure 6 , Figure 9 and Figure 10, in some embodiments, the linkage assembly 43 includes a stretching motor 4301, a first linkage rod 4302, a second linkage rod 4303, a third linkage rod 4304, a fourth linkage rod 4305, a fifth linkage rod 4306, a sixth linkage rod 4307, a seventh linkage rod 4308, an eighth linkage rod 4309, a ninth linkage rod 4310, and a tenth linkage rod 4311. The stretching motor 4301 is hinged to the movable frame 2. The first linkage rod 4302 is hinged to the output shaft of the stretching motor 4301. One end of the second linkage rod 4303 is fixedly connected to the first linkage rod 4302, and the other end of the second linkage rod 4303 is hinged to the movable frame 2. The third linkage rod 4304 is hinged between the first linkage rod 4302 and the fourth linkage rod 4305. The fourth linkage rod 4305 is fixedly connected to the fifth linkage rod 4306. The sixth linkage rod 4307 is hinged between the fifth linkage rod 4306 and the seventh linkage rod 4308. The seventh linkage rod 4308 and the eighth linkage rod 4309 are arranged along the front-back direction on the movable frame 2. The ninth linkage rod 4310 is fixedly connected to the eighth linkage rod 4309. The tenth linkage rod 4311 is hinged between the fifth linkage rod 4306 and the ninth linkage rod 4310. The leg assembly 42 is hinged to the front end of the fifth linkage rod 4306, and the backrest assembly 41 is hinged to the rear end of the fifth linkage rod 4306. In this way, when the stretching mechanism 4 switches from the sitting posture state to the TV posture state, the stretching motor 4301 drives the first linkage rod 4302 to move backward. The first linkage rod 4302 drives the second linkage rod 4303 to rotate backward. And the first linkage rod 4302 drives the fourth linkage rod 4305 through the third linkage rod 4304. The fourth linkage rod 4305 drives the fifth linkage rod 4306 to move backward, so that the fifth linkage rod 4306 drives the sixth linkage rod 4307 to rotate around its hinge point with the seventh linkage rod 4308, and drives the leg assembly 42 to stretch forward, so that the leg assembly 42 can provide support for the user's legs. At the same time, the fifth linkage rod 4306 drives the tenth linkage rod 4311 and the backrest assembly 41 to rotate backward, so that the user's back can recline on the backrest assembly 41. When the stretching motor 4301 drives the first linkage rod 4302 to move backward to the limit position, the stretching mechanism 4 switches from the TV posture state to the lying posture state, so that the user can lie flat on the seat. When the stretching mechanism 4 switches from the lying posture state to the TV posture state, the stretching motor 4301 drives the first linkage rod 4302 to move forward. When the stretching motor 4301 drives the first linkage rod 4302 to move forward to the limit position, the stretching mechanism 4 switches from the TV posture state to the sitting posture state, so that the user can sit on the seat.

[0040] Refer to Figure 5 、 Figure 6 、 Figure 9 and Figure 10 In some embodiments, the backrest assembly 41 includes a backrest mounting bracket 4101 and a backrest link 4102. The front end of the backrest mounting bracket 4101 is hinged to the rear end of the fifth linkage rod 4306, and the rear end of the backrest mounting bracket 4101 is hinged to the eighth linkage rod 4309 through the backrest link 4102. Thus, when the stretching mechanism 4 switches from the sitting state to the TV state, the fifth linkage rod 4306 moves backward, thereby driving the backrest mounting bracket 4101 to rotate backward about its hinge point with the backrest link 4102. Optionally, a back pad is assembled on the backrest mounting bracket 4101. When switching from the sitting state to the TV state, the back pad rotates synchronously with the backrest mounting bracket 4101, thereby reducing the slope of the back pad, so that the user's back can recline on the back pad.

[0041] Refer to Figure 5 、 Figure 6 、 Figure 9 and Figure 10, in some embodiments, the leg assembly 42 includes a first leg link 4201, a second leg link 4202, a first foot pad mounting bracket 4203, a third leg link 4204, a second foot pad mounting bracket 4205, a fourth leg link 4206, a fifth leg link 4207, a sixth leg link 4208, a seventh leg link 4209, and an eighth leg link 4210. The first leg link 4201 is hinged between the front end of the fifth linkage rod 4306 and the rear end of the second leg link 4202. The front end of the second leg link 4202 is hinged to the first foot pad mounting bracket 4203. The third leg link 4204 is hinged between the first foot pad mounting bracket 4203 and the second foot pad mounting bracket 4205. The fourth leg link 4206 is hinged between the fifth leg link 4207 and the second foot pad mounting bracket 4205. The rear end of the fifth leg link 4207 and the rear end of the first foot pad mounting bracket 4203 are both hinged to the sixth leg link 4208. The seventh leg link 4209 is hinged between the sixth leg link 4208 and the sixth linkage rod 4307. The eighth leg link 4210 is hinged between the first leg link 4201 and the sixth linkage rod 4307. Thus, when the extension mechanism 4 switches from the sitting state to the TV state, the first leg link 4201 extends forward under the combined drive of the fifth linkage rod 4306 and the eighth leg link 4210, wherein the eighth leg link 4210 is driven by the sixth linkage rod 4307. The seventh leg link 4209 also extends forward under the drive of the sixth linkage rod 4307. Meanwhile, the first leg link 4201 drives the second leg link 4202 to extend forward, the seventh leg link 4209 drives the sixth leg link 4208 to extend forward, the first foot pad mounting bracket 4203 extends forward under the combined drive of the second leg link 4202 and the sixth leg link 4208, and the second foot pad mounting bracket 4205 extends forward under the combined drive of the third leg link 4204 and the fourth leg link 4206, wherein the third leg link 4204 is driven to extend forward by the first foot pad mounting bracket 4203, and the fourth leg link 4206 is driven by the sixth leg link 4208 through the fifth leg link 4207.

[0042] In some embodiments, a seat includes the zero-wall-hugging seat frame as described above.

[0043] Refer to Figures 1 - 10, in some embodiments, a seat cushion may be assembled on the fourth linkage rod 4305, a first footrest is installed on the first footrest mounting bracket 4203, a second footrest is installed on the second footrest mounting bracket 4205, and a backrest is assembled on the backrest mounting bracket 4101. Optionally, to improve the stability of the seat, the movable frame 2 is a frame structure formed by several rods and / or square tubes. A stretching mechanism 4 is provided on each of the left and right sides of the movable frame 2. Optionally, the base 1 may be formed by splicing two longitudinal beams and a cross beam. The two longitudinal beams are fixedly connected to the left and right ends of the cross beam. The movable frame 2 is movably assembled between the two longitudinal beams. A slide rail 5 is provided between each of the two sides of the movable frame 2 and the longitudinal beam. Optionally, the slide rail 5 is fixedly connected to the movable frame 2, and the longitudinal beam is slidably connected to the slide rail 5. In this way, when the stretching mechanism 4 switches from the sitting position to the TV position, the stretching motor 4301 drives the first linkage rod 4302 to move backward. The first linkage rod 4302 drives the second linkage rod 4303 to rotate backward, and the first linkage rod 4302 drives the fourth linkage rod 4305 through the third linkage rod 4304. The fourth linkage rod 4305 drives the fifth linkage rod 4306 to move backward, so that the fifth linkage rod 4306 drives the sixth linkage rod 4307 to rotate around its hinge point with the seventh linkage rod 4308. The backrest mounting bracket 4101 rotates backward around its hinge point with the backrest link 4102 under the drive of the fifth linkage rod 4306, reducing the slope of the backrest, enabling the user's back to recline on the backrest. The first leg link 4201 extends forward under the combined drive of the fifth linkage rod 4306 and the eighth leg link 4210. The seventh leg link 4209 also extends forward under the drive of the sixth linkage rod 4307. At the same time, the first leg link 4201 drives the second leg link 4202 to extend forward, and the seventh leg link 4209 drives the sixth leg link 4208 to extend forward. The first footrest mounting bracket 4203 extends forward under the combined drive of the second leg link 4202 and the sixth leg link 4208, and the second footrest mounting bracket 4205 extends forward under the combined drive of the third leg link 4204 and the fourth leg link 4206, making the first footrest and the second footrest flush. When the stretching motor 4301 drives the first linkage rod 4302 to move backward to the limit position, the stretching mechanism 4 switches from the TV position to the lying position, and the first footrest, the second footrest, the seat cushion, and the backrest are on the same plane, allowing the user to lie flat on the seat. When the stretching mechanism 4 switches from the lying position to the TV position, the stretching motor 4301 drives the first linkage rod 4302 to move forward, the leg assembly 42 starts to retract backward, and the backrest mounting bracket 4101 rotates forward around its hinge point with the backrest link 4102.The slope of the backrest begins to increase. When the extension motor 4301 drives the first linkage rod 4302 forward to the limit position, the extension mechanism 4 switches from the TV posture state to the sitting posture state, enabling the user to sit on the seat. When the extension mechanism 4 undergoes a state switch, the user can drive the movable frame 2 forward or backward through the first drive motor, so that the movable frame 2 can drive the extension mechanism 4 forward or backward, thereby ensuring that the extension mechanism 4 can maintain zero-wall contact in any state, effectively avoiding interference between the extension mechanism 4 and the outside world, and making full use of the indoor space, bringing a better user experience to the user.

[0044] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A zero-wall-mounted seat frame, characterized in that, Comprising: A base (1); A movable frame (2), which is movably assembled on the base (1); A first driving mechanism (3), which is connected to the movable frame (2) and is used to drive the movable frame (2) to move forward or backward; An extension mechanism (4), which is assembled on the movable frame (2) and can be switched between a sitting position, a TV position and a lying position; The extension mechanism (4) includes a backrest assembly (41), a leg assembly (42) and a linkage assembly (43), wherein: the linkage assembly (43) is assembled on the movable frame (2), and the linkage assembly (43) includes an extension motor (4301), a first linkage rod (4302), a second linkage rod (4303), a third linkage rod (4304), a fourth linkage rod (4305), a fifth linkage rod (4306), a sixth linkage rod (4307), a seventh linkage rod (4308), an eighth linkage rod (4309), a ninth linkage rod (4310) and a tenth linkage rod (4311). The extension motor (4301) is hinged to the movable frame (2), the first linkage rod (4302) is hinged to the output shaft of the extension motor (4301), one end of the second linkage rod (4303) is fixedly connected to the first linkage rod (4302), the other end of the second linkage rod (4303) is hinged to the movable frame (2), the third linkage rod (4304) is hinged between the first linkage rod (4302) and the fourth linkage rod (4305), the fourth linkage rod (4305) is fixedly connected to the fifth linkage rod (4306), the sixth linkage rod (4307) is hinged between the fifth linkage rod (4306) and the seventh linkage rod (4308), the seventh linkage rod (4308) and the eighth linkage rod (4309) are arranged in the front-rear direction on the movable frame (2), the ninth linkage rod (4310) is fixedly connected to the eighth linkage rod (4309), the tenth linkage rod (4311) is hinged between the fifth linkage rod (4306) and the ninth linkage rod (4310), the leg assembly (42) is hinged to the front end of the fifth linkage rod (4306), and the backrest assembly (41) is hinged to the rear end of the fifth linkage rod (4306); the backrest assembly (41) is hinged to the rear end of the linkage assembly (43), and the linkage assembly (43) can drive the backrest assembly (41) to rotate; the leg assembly (42) is hinged to the front end of the linkage assembly (43), and the linkage assembly (43) can drive the leg assembly (42) to extend and retract.

2. The zero-wall-mounted seat frame according to claim 1, wherein: It further includes a slide rail (5), the slide rail (5) is fixedly connected to the movable frame (2), and the base (1) is slidably connected to the slide rail (5).

3. The zero-wall-adjacent seat frame according to claim 2, wherein: The first driving mechanism (3) includes a rotating motor and a driving wheel. The rotating motor is fixedly connected to the slide rail (5). The base (1) abuts against the driving wheel. The driving wheel is connected to the output shaft of the rotating motor, and the rotating motor drives the driving wheel to rotate so that the movable frame (2) moves forward or backward.

4. The zero-wall-mounted seat frame according to claim 1, wherein: The first driving mechanism (3) includes a telescopic motor (31) and a telescopic slider (32). The telescopic motor (31) is fixedly connected to the base (1). The telescopic slider (32) is fixedly connected to the movable frame (2). The telescopic slider (32) is connected to the output shaft of the telescopic motor (31), and the telescopic motor (31) can drive the telescopic slider (32) to move forward or backward.

5. The zero-wall-attached seat frame according to claim 1, characterized in that: It further includes rollers (6), and the rollers (6) are assembled at the lower end of the movable frame (2).

6. The zero-wall-mounted seat frame according to claim 1, characterized in that: The backrest assembly (41) includes a backrest mounting frame (4101) and a backrest connecting rod (4102). The front end of the backrest mounting frame (4101) is hinged to the rear end of the fifth linkage rod (4306). The rear end of the backrest mounting frame (4101) is hinged to the eighth linkage rod (4309) through the backrest connecting rod (4102).

7. The zero-wall-adjacent seat frame according to claim 1, wherein: The leg assembly (42) includes a first leg connecting rod (4201), a second leg connecting rod (4202), a first foot pad mounting frame (4203), a third leg connecting rod (4204), a second foot pad mounting frame (4205), a fourth leg connecting rod (4206), a fifth leg connecting rod (4207), a sixth leg connecting rod (4208), a seventh leg connecting rod (4209) and an eighth leg connecting rod (4210). The first leg connecting rod (4201) is hinged between the front end of the fifth linkage rod (4306) and the rear end of the second leg connecting rod (4202). The front end of the second leg connecting rod (4202) is hinged to the first foot pad mounting frame (4203). The third leg connecting rod (4204) is hinged between the first foot pad mounting frame (4203) and the second foot pad mounting frame (4205). The fourth leg connecting rod (4206) is hinged between the fifth leg connecting rod (4207) and the second foot pad mounting frame (4205). The rear ends of the fifth leg connecting rod (4207) and the first foot pad mounting frame (4203) are both hinged to the sixth leg connecting rod (4208). The seventh leg connecting rod (4209) is hinged between the sixth leg connecting rod (4208) and the sixth linkage rod (4307). The eighth leg connecting rod (4210) is hinged between the first leg connecting rod (4201) and the sixth linkage rod (4307).

8. A seat, characterized in that, Comprising: The zero-wall-abutting seat frame according to any one of claims 1-7.

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