CN219920675U - Mechanical stretching device of functional sofa with zero wall function - Google Patents

Abstract

The utility model relates to a mechanical stretching device of a functional sofa with a zero wall function, which relates to the technical field of functional sofas and comprises an iron frame, a seat frame, a driving assembly and a force application mechanism, wherein the force application mechanism comprises: the supporting piece and the adjusting piece are both rotatably arranged on the seat frame; the back insert is rotatably arranged on the supporting piece and the adjusting piece and is used for installing the backrest; the connecting piece is rotatably arranged on the iron frame; the force application plate is rotatably arranged on the seat frame through a rotating shaft and is rotatably connected with the connecting piece; the force application piece is rotatably arranged on the force application plate and is rotatably connected with the back insert. According to the utility model, when the sitting posture is changed into the TV posture, the backrest and the wall surface generate a clearance space to avoid the backrest, so that the probability of collision between the backrest and the wall surface is reduced, the sofa can be installed by being abutted against the wall surface when being installed, the space utilization rate of the sofa is improved, and the use experience of the sofa is improved.

Description

Mechanical stretching device of functional sofa with zero wall function

Technical Field

The utility model relates to the technical field of functional sofas, in particular to a functional sofa mechanical stretching device with a zero wall leaning function.

Background

The current multifunctional sofa generally comprises three different states of sitting posture, TV posture and lying posture in order to improve the use experience of people.

The existing sofa generally comprises a seat frame movably arranged on an iron frame and a backrest movably arranged on the seat frame, a driving assembly used for moving the seat frame and the backrest is further arranged on the iron frame, the driving assembly is started to enable the seat frame to move obliquely downwards, the sofa is converted into a TV pose from a sitting pose, then the driving assembly is continuously started to enable the seat frame to move obliquely upwards, the backrest is enabled to rotate downwards to lay down the backrest, and accordingly the sofa is converted into a lying pose from the TV pose.

The backrest rotation point is generally located at the bottom of the backrest, so that the backrest is easy to collide with the wall surface in the rotation process, the wall surface can be kept away from the backrest when the sofa is installed, space waste is caused, the space utilization rate of the sofa is reduced, and the stability of the sofa is reduced due to the fact that the backrest is not abutted against the wall surface for positioning, so that the use experience of the sofa is reduced.

Disclosure of Invention

In order to improve the use experience of the sofa, the utility model provides the functional sofa mechanical stretching device with the zero wall leaning function.

The utility model provides a functional sofa mechanical stretching device with a zero wall-leaning function, which adopts the following technical scheme:

the utility model provides a functional sofa mechanical stretching device with zero wall function, includes iron stand, swing joint seat frame on the iron stand, sets up on the iron stand and is used for driving the drive assembly of seat frame motion, be provided with the force application mechanism that is used for driving the back motion on the seat frame, force application mechanism includes:

the support piece and the adjusting piece are both rotatably arranged on the seat frame;

the back insert is rotatably arranged on the supporting piece and the adjusting piece and is used for installing the backrest;

the connecting piece is rotatably arranged on the iron frame;

the force application plate is rotatably arranged on the seat frame through a rotating shaft and is rotatably connected with the connecting piece through a rotating column;

the force application piece is rotatably arranged on the force application plate through a rotating rod and is rotatably connected with the back insert through a rotating rod.

By adopting the technical scheme, the seat frame, the supporting piece, the adjusting piece and the back insert are matched to form a structure similar to a four-bar linkage, so that the back insert is supported, the force application piece is used for positioning the position of the back insert, and the force application piece is used for driving the back insert to rotate;

when the sitting posture is converted into the TV posture, the driving assembly starts to drive the seat frame to move downwards obliquely and far away from the wall surface, the seat frame also drives the structure positioned on the seat frame and the backrest to move downwards obliquely and far away from the wall surface simultaneously, so that the force application plate and the connecting piece relatively rotate, the force application plate moves far away from the wall surface and drives the connecting piece and the iron frame to relatively rotate so as to avoid the position, the force application plate does not rotate, and therefore the backrest does not rotate but only moves far away from the wall surface, and a rotating space is formed between the backrest and the wall surface, so that the TV posture is converted from the sitting posture into the TV posture.

When the TV posture is converted into the lying posture, the connecting piece is rotated to the limit position, the driving assembly is continuously started to drive the seat frame to move upwards and away from one side of the wall surface, so that the part positioned on the seat frame and the backrest move upwards and away from one side of the wall surface, the force application plate moves upwards in an inclined manner and rotates under the pulling of the connecting piece, the force application plate rotates to pull the back insert to rotate through the force application piece, and the back insert rotates to realize the falling of the backrest, so that the TV posture is converted into the lying posture; therefore, the backrest is kept away through the rotating space, so that the probability of collision between the backrest and the wall surface is reduced, the backrest can be installed against the wall surface when the sofa can be installed, the space utilization rate of the sofa is improved, the use experience of the sofa is improved, meanwhile, the backrest is driven to move through the rotating structure, the probability of failure caused by the use of the sliding structure is reduced, the stability of the sofa is further improved, and the use experience of the sofa is improved.

Optionally, a limiting component for limiting the sofa in sitting and lying postures is arranged on the back insert and the force application plate.

Through adopting above-mentioned technical scheme, spacing subassembly is used for carrying out spacingly when being in position of sitting and lying to the sofa to further improved the stability of sofa, improved the use experience of sofa.

Optionally, the limiting assembly includes:

the first limiting column is arranged on the back insert, the second limiting column is arranged on the force application plate and is positioned between the back insert and the seat frame, and the first limiting column and the second limiting column are respectively positioned at two sides of the support piece; when the sofa is in sitting position, the first limit column and the second limit column are respectively propped against the supporting piece and the back insert for positioning, and when the sofa is in lying position, the first limit column and the second limit column are respectively propped against the supporting piece and the seat frame for positioning.

Through adopting above-mentioned technical scheme, first spacing post and second spacing post are supported respectively and are pressed on support piece and back of the body plug-in components and fix a position, when the in-process of converting from the position of sitting to lying, the regulating part rotates and drives back of the body plug-in components and first spacing post upwards rotates and keep away from support piece, and first spacing post rotates around support piece and back of the body plug-in components articulated department moreover, the application of force board drives the second spacing post and rotates downwards and keep away from back of the body plug-in components and be close to the seat frame simultaneously, when converting to lying the position, first spacing post rotates to the opposite side of support piece and back of the body plug-in components articulated department, consequently first spacing post supports to press on support piece, and the second spacing post supports to press on the seat frame, so as to realize that the sofa is in position of sitting and lying the position and is spacing.

Optionally, the rotating shaft connects the force application plate with the first linkage part and the second linkage part, the first linkage part and the second linkage part are respectively connected with the force application member and the connecting member, and the length of the second linkage part is greater than that of the connecting member.

Optionally, the first bull stick and second bull stick all are located the pivot and are close to the bracket subassembly and keep away from wall one side, are formed with the rotation angle between first linkage portion and the second linkage portion, the contained angle that the wall one side was kept away from to the rotation angle is equal to or less than 90 degrees.

Through adopting above-mentioned technical scheme, the both ends of application of force board all are close to the bracket subassembly and keep away from the wall design for structural design is more reasonable, and the design of acute angle makes the application of force board realize the function and also has reduced the shared space of application of force board simultaneously, improves the convenience of structural installation and design, has improved the use experience of sofa.

Optionally, when the sofa is in sitting position, the connecting line of the axes of the first rotating rod and the rotating rod is positioned at the lower side of the connecting line of the axes of the first rotating rod and the rotating shaft, and when the sofa is converted into TV position, the connecting line of the axes of the first rotating rod and the rotating rod is positioned at the upper side of the connecting line of the axes of the first rotating rod and the rotating shaft.

Through adopting above-mentioned technical scheme, the application of force piece keeps away from the one end articulated with the application of force board, and just with back of body plug-in components articulated one end from being located the gangbar below and rotate to application of force board top, then can make the application of force piece rotate to the dead angle of lock and can not rotate when continuing to rotate, consequently application of force piece rotatable angle just is located application of force board one side rotation and increase nearly one time for application of force piece, thereby increased application of force piece and kept away the angle scope of position when application of force board drive rotation, consequently further reduced the probability of driving the back rotation when the position of sitting changes to TV appearance, improved sofa's use experience.

Optionally, the support piece and the adjusting piece are arranged on two opposite side walls of the back insert, the force application piece and the adjusting piece are positioned on the same side wall of the back insert, and the force application piece is provided with a bending part for avoiding the adjusting piece.

Through adopting above-mentioned technical scheme, support piece and second dwang are located back of body plug-in components respectively on the both sides wall that is on the back of body mutually for structural subsection is reasonable and the atress is balanced, and the kink keeps away the position when the force application piece rotates, thereby makes force application piece and back of body plug-in components pin joint can be closer to back of body plug-in components, has consequently improved force application piece and back of body plug-in components junction's stability, has improved stability and life-span when sand send the operation, has improved the use experience of sofa.

Optionally, the support piece is connected with the back of the body plug-in components rotation through the axis of rotation, the axis of rotation is divided into first installation department and second installation department with the back of the body plug-in components, second installation department is connected and length is less than first installation department length with the regulating part.

Through adopting above-mentioned technical scheme for the application of force spare rotates less angle and can drive back of body plug-in components and rotate great angle, has further reduced the probability that back and wall bump, has improved the use experience of sofa.

In summary, the present utility model includes at least one of the following beneficial technical effects:

the backrest and the wall surface are enabled to generate a clearance space to avoid the backrest when the sofa is changed into the TV pose through the sitting pose, so that the probability of collision between the backrest and the wall surface is reduced, the sofa can be installed by leaning against the wall surface, the space utilization rate of the sofa is improved, and the use experience of the sofa is improved.

Drawings

FIG. 1 is a schematic view of the structure of the sofa in a sitting position in the utility model;

FIG. 2 is a schematic view of the structure of the sofa in the TV position in the present utility model;

FIG. 3 is a schematic view of the spacing assembly of the present utility model with the sofa in a lying position;

FIG. 4 is a schematic view of the structure of the sofa in the lying position of the utility model;

FIG. 5 is a schematic view of the structure of the spacing assembly of the present utility model when the sofa is in a sitting position.

Reference numerals: 1. an iron stand; 11. a seat frame; 13. a carrying plate; 14. a rotating shaft; 2. a force application mechanism; 21. a support; 22. an adjusting member; 23. a back insert; 24. a first mounting portion; 25. a second mounting portion; 31. a connecting piece; 32. a force application plate; 33. a force application member; 331. a bending part; 34. a first linkage part; 341. a rotating rod; 35. a second linkage part; 351. rotating the column; 36. a rotating lever; 4. a drive assembly; 5. a limit component; 51. a first limit post; 52. the second limit column; 53. a first limit groove; 54. and the second limit groove.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a functional sofa mechanical stretching device with a zero wall leaning function.

Referring to fig. 1, the mechanical stretching device of the functional sofa with the function of zero wall leaning comprises an iron frame 1, a backrest abutting against a wall surface and a seat frame 11 movably connected to the iron frame 1, wherein a driving component 4 for driving the seat frame 11 to move is arranged on the iron frame 1, and a force application mechanism 2 for driving the backrest to move is arranged on the seat frame 11.

Referring to fig. 1, the driving assembly 4 includes a driving seat and an electric push rod, wherein the driving seat is rotatably arranged on the iron stand 1 and is positioned at one side of the seat frame 11 close to the wall surface; the electric push rod is fixedly arranged on the driving seat, the piston rod of the electric push rod is connected with the seat frame 11 and is used for driving the seat frame 11 to move, when the seat frame 11 is installed and changed into a TV posture from a sitting posture, the seat frame 11 is obliquely downwards moved away from a wall surface, and when the seat frame 11 is changed into a lying posture from the TV posture, the seat frame 11 is obliquely upwards moved away from the wall surface.

Referring to fig. 1, the force application mechanism 2 includes a supporting member 21, an adjusting member 22, and a back insert 23, wherein a bearing plate 13 is fixedly installed on an upper surface of one end of the seat frame 11 near a wall surface, bottom ends of the supporting member 21 and the adjusting member 22 are rotatably installed on the bearing plate 13, a hinge point of the adjusting member 22 and the bearing plate 13 is located below a hinge point of the supporting member 21 and the bearing plate 13, top ends of the supporting member 21 and the adjusting member 22 extend to above the bearing plate 13, top ends of the supporting member 21 are located above the adjusting member 22, and the supporting member 21 is located on one side of the adjusting member 22 near the wall surface.

Referring to fig. 1 and 2, a rotation shaft is fixedly installed at the top end of a support member 21, the bottom end of a back insert 23 is rotatably installed at the top end of an adjusting member 22, the back insert 23 is obliquely upwards arranged and rotatably connected with the rotation shaft, meanwhile, the top end of the back insert 23 extends above the support member 21, and the support member 21 and the adjusting member 22 are respectively positioned at two opposite sides of the back insert 23; the rotating shaft divides the back insert 23 into a first mounting part 24 and a second mounting part 25, the bottom end of the second mounting part 25 is rotationally connected with the adjusting piece 22, the length of the second mounting part 25 is smaller than that of the first mounting part 24, and the first mounting part 24 is used for mounting a backrest; the support 21, the adjustment member 22 and the back insert 23 cooperate to form a quadrilateral structure with axes of rotation all parallel.

Referring to fig. 1 and 3, the force application mechanism 2 further includes a connecting member 31, a force application plate 32, and a force application member 33, wherein one end of the connecting member 31 is rotatably mounted on the iron stand 1 and located directly below the bearing plate 13, while the other end of the connecting member 31 is disposed obliquely upward and toward a side far from the wall surface.

Referring to fig. 1 and 4, a rotating shaft 14 is fixedly installed on a side wall of the bearing plate 13 and located at a side of the supporting piece 21 close to the wall surface, the force application plate 32 is rotatably installed on the rotating shaft 14, the rotating shaft 14 divides the force application plate 32 into a first linkage part 34 and a second linkage part 35, one end of the first linkage part 34 away from the rotating shaft 14 extends obliquely upwards to a side of the back insert 23 away from the wall surface and is fixedly provided with a rotating rod 341, and one end of the second linkage part 35 away from the rotating shaft 14 extends obliquely downwards to a side close to the iron stand 1 and is fixedly provided with a rotating column 351, so that the rotating rod 341 and the rotating column 351 are located at a side of the rotating shaft 14 away from the wall surface; the first and second link parts 34 and 35 are formed with a rotation angle, and an included angle of a side of the rotation angle away from the wall surface is equal to or less than 90 degrees.

Referring to fig. 1, 2 and 4, one end of the urging member 33 is rotatably mounted on the rotating lever 341, and the urging member 33 is located between the urging plate 32 and the back insert 23, and the other end of the urging member 33 is rotatably connected to the second mounting portion 25 through the rotating lever 36, and the rotating lever 36 and the regulating member 22 are located on the same side of the back insert 23; the axis connecting line of the rotating rod 341 and the rotating shaft 14 is a first standard line, and the axis connecting line of the rotating rod 341 and the rotating rod 36 is a second standard line, when the sofa is in a sitting posture, one end of the second standard line, which is far away from the rotating rod 36, is positioned below the first standard line, and when the sofa is in a TV posture, one end of the second standard line, which is far away from the rotating rod 36, is positioned above the first standard line.

Referring to fig. 1 and 4, the end of the force application member 33 away from the rotating rod 36 is provided with a bending portion 331 formed by punching and bending integrally, the bending portion 331 is away from the back insert 23 and is used for avoiding the adjusting member 22 when rotating, so that the probability of collision between the force application member 33 and the adjusting member 22 when rotating is reduced, and all rotation direction axes of the connecting member 31, the force application plate 32, the force application member 33 and the back insert 23 are parallel.

Referring to fig. 3 and 5, the back insert 23 and the force application plate 32 are provided with a limiting assembly 5 for limiting the sofa in sitting and lying postures, the limiting assembly 5 comprises a first limiting column 51 and a second limiting column 52, and the first limiting column 51 is fixedly mounted on the second mounting portion 25 and is located between the supporting member 21 and the adjusting member 22; the second limiting column 52 is fixedly installed on the first linkage part 34 and located between the first installation part 24 and the bearing plate 13, and meanwhile, the first limiting column 51 and the second limiting column 52 are respectively located on two sides of the rotating shaft and the supporting piece 21; when the sofa is in a sitting position, the first limiting post 51 is pressed against the supporting piece 21, and the second limiting post 52 is pressed against the first mounting portion 24 for positioning.

Referring to fig. 3 and 5, when the sofa is in a lying position, the first limiting post 51 is pressed against the supporting member 21, the second limiting post 52 is pressed against the carrying plate 13 to position, meanwhile, two first limiting grooves 53 which can be attached to the first limiting post 51 are spaced apart on the supporting member 21, and a second limiting groove 54 which can be attached to the second limiting post 52 is formed on the carrying plate 13. When the sitting posture is converted into the lying posture, the adjusting piece 22 drives the second mounting portion 25 and the first limiting post 51 to rotate upwards, so that the first limiting post 51 is far away from the supporting piece 21, the first mounting portion 24 and the backrest rotate downwards, and meanwhile, the first linkage portion 34 rotates downwards to drive the second limiting post 52 to be close to the bearing plate 13, so that the first limiting post 51 is pressed onto the first limiting groove 53 located above from the first limiting groove 53 located below, and the second limiting post 52 is far away from the first mounting portion 24 and is pressed onto the second limiting groove 54, and therefore limiting of the sofa position is achieved.

The working principle of the embodiment of the utility model is as follows:

the electric push rod is started to drive the seat frame 11, the bearing plate 13 and the parts positioned on the bearing plate 13 to move obliquely downwards and far away from one side of the wall surface, so that the force application plate 32 moves to pull the top end of the connecting piece 31 to rotate downwards to avoid the position, the seat frame 11 is realized to drive the backrest to move but not rotate, the transformation from the sitting posture to the TV posture is realized, and the backrest is far away from the wall surface to form a rotating space.

The electric push rod continues to move to drive the seat frame 11 to move obliquely upwards and far away from the wall surface, and the connecting piece 31 is rotated to the limit position and cannot rotate, so that the force application plate 32 is pulled to rotate around the rotating shaft 14 under the limit of the connecting piece 31, the force application plate 32 drives the back insert 23 to rotate through the force application piece 33, and accordingly the backrest is laid down, the purpose of converting a TV pose into a lying pose is achieved, the backrest is driven to be far away from the wall surface in advance before the lying pose is adjusted to form a rotating space, the probability of collision between the backrest and the wall surface is reduced, and the use experience of a sofa is improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a function sofa mechanical stretching device with zero wall function, includes iron stand (1), swing joint seat frame (11) on iron stand (1), sets up on iron stand (1) and is used for driving drive assembly (4) of seat frame (11) motion, its characterized in that: the seat frame (11) is provided with a force application mechanism (2) for driving the backrest to move, and the force application mechanism (2) comprises:

the support piece (21) and the adjusting piece (22) are rotatably arranged on the seat frame (11);

a back insert (23), wherein the back insert (23) is rotatably arranged on the supporting piece (21) and the adjusting piece (22) and is used for installing a backrest;

the connecting piece (31), the said connecting piece (31) is set up on the iron stand (1) rotatably;

the force application plate (32) is rotatably arranged on the seat frame (11) through the rotating shaft (14), and is rotatably connected with the connecting piece (31) through the rotating column (351);

the force application piece (33), the force application piece (33) is rotatably arranged on the force application plate (32) through a rotating rod (341) and is rotatably connected with the back insert (23) through a rotating rod (36).

2. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 1, wherein: and a limiting component (5) for limiting the sofa in sitting and lying postures is arranged on the back insert (23) and the force application plate (32).

3. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 2, wherein: the limit assembly (5) comprises:

the first limiting column (51) and the second limiting column (52), the first limiting column (51) is arranged on the back insert (23), the second limiting column (52) is arranged on the force application plate (32) and located between the back insert (23) and the seat frame (11), and the first limiting column (51) and the second limiting column (52) are respectively located on two sides of the supporting piece (21); when the sofa is in a sitting posture, the first limiting column (51) and the second limiting column (52) are respectively propped against the supporting piece (21) and the back insert (23) to be positioned, and when the sofa is in a lying posture, the first limiting column (51) and the second limiting column (52) are respectively propped against the supporting piece (21) and the seat frame (11) to be positioned.

4. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 2, wherein: the rotating shaft (14) is used for connecting the force application plate (32) with the first linkage part (34) and the second linkage part (35), the first linkage part (34) and the second linkage part (35) are respectively connected with the force application member (33) and the connecting member (31), and the length of the second linkage part (35) is larger than that of the connecting member (31).

5. The mechanical stretching device for a functional sofa with zero wall function according to claim 4, wherein: the bull stick (341) and rotation post (351) all are located pivot (14) and are close to bracket subassembly (12) and keep away from wall one side, are formed with the rotation angle between first linkage portion (34) and second linkage portion (35), the contained angle that the wall one side was kept away from to the rotation angle equals or is less than 90 degrees.

6. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 1, wherein: when the sofa is in a sitting posture state, the connecting line of the axes of the rotating rod (341) and the rotating rod (36) is positioned at the lower side of the connecting line of the axes of the rotating rod (341) and the rotating shaft (14), and when the sofa is converted into a TV posture, the connecting line of the axes of the rotating rod (341) and the rotating rod (36) is positioned at the upper side of the connecting line of the axes of the rotating rod (341) and the rotating shaft (14).

7. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 1, wherein: the support piece (21) and the adjusting piece (22) are arranged on two opposite side walls of the back insert (23), the force application piece (33) and the adjusting piece (22) are arranged on the same side wall of the back insert (23), and the force application piece (33) is provided with a bending part (331) for avoiding the adjusting piece (22).

8. The mechanical stretching device for a functional sofa with zero wall leaning function according to claim 1, wherein: the support piece (21) is rotationally connected with the back insert (23) through a rotating shaft, the rotating shaft divides the back insert (23) into a first installation part (24) and a second installation part (25), and the second installation part (25) is connected with the adjusting piece (22) and has a length smaller than that of the first installation part (24).