CN215502137U - Full-connecting-rod type sofa functional iron frame - Google Patents
Full-connecting-rod type sofa functional iron frame Download PDFInfo
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- CN215502137U CN215502137U CN202121691366.XU CN202121691366U CN215502137U CN 215502137 U CN215502137 U CN 215502137U CN 202121691366 U CN202121691366 U CN 202121691366U CN 215502137 U CN215502137 U CN 215502137U
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Abstract
The utility model discloses a full-link sofa functional iron frame which comprises a cushion mechanism, a pedal mechanism and a backrest mechanism, wherein the cushion mechanism comprises a positioning frame and a cushion component, and the cushion component comprises a front link group, a rear link group, a cushion and a first linkage rod; the front connecting rod group and the rear connecting rod group respectively comprise a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a first hinge joint and a second hinge joint, wherein the first hinge joint and the second hinge joint are distributed in the front and at the back of the positioning frame; the second connecting rod is hinged with the first end of the first connecting rod, and the second end of the first connecting rod is hinged on the first hinge position; the upper end of the second connecting rod is hinged with the first end of the third connecting rod, and the second end of the third connecting rod is hinged on the second hinge position; the front end and the rear end of the first linkage rod are respectively provided with a third hinge joint and a fourth hinge joint; the lower end of the second connecting rod is hinged to the third hinge position, the lower end of the fourth connecting rod is hinged to the fourth hinge position, and the upper end of the fourth connecting rod is hinged to the cushion. The utility model has the characteristics of simple structure, low production difficulty and high use comfort.
Description
Technical Field
The utility model relates to the technical field of furniture, in particular to a full-connecting-rod type sofa functional iron frame.
Background
The existing adjustable armrest floor series sofa is internally provided with a stretching mechanical support frame, the mechanical stretching functional iron frame generally comprises a pedal mechanism, a cushion mechanism and a backrest mechanism, and the relative positions and angles of pedals, the cushion and the backrest of the sofa can be adjusted through a series of mechanical connecting rods between the three mechanisms so as to realize the switching of the sitting posture, the leisure posture and the full lying posture of the sofa.
Because the switching between each posture of the sofa is mainly realized through the mechanical connecting rod structure, the complexity of the mechanical connecting rods and the matching rationality of the mechanical connecting rods can influence the structural stability, the service life and the production cost of the whole supporting iron frame. There is therefore room for further improvement in the construction of the functional iron frame in prior art sofas in order to further increase the satisfaction of the user.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a full-link sofa functional iron frame which has the characteristics of simple structure, low production difficulty and high use comfort.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a full connecting rod formula sofa function iron stand, includes cushion mechanism, connects in the pedal mechanism of cushion mechanism front side and connects in the back mechanism of cushion mechanism rear side, characterized by: the cushion mechanism comprises a positioning frame and a cushion component, and the cushion component comprises a front connecting rod group, a rear connecting rod group, a cushion and a first linkage rod;
the front connecting rod group and the rear connecting rod group are connected to the positioning frame in a front-rear distribution state and respectively comprise a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the positions of the positioning frame corresponding to the front connecting rod group and the rear connecting rod group are respectively provided with a first hinge joint and a second hinge joint which are distributed in a front-rear distribution state;
the middle part of the second connecting rod is hinged with the first end of the first connecting rod, and the second end of the first connecting rod is hinged on the first hinge position; the upper end of the second connecting rod is hinged with the first end of the third connecting rod, and the second end of the third connecting rod is hinged on the second hinge position;
the front end and the rear end of the first linkage rod respectively correspond to the front connecting rod group and the rear connecting rod group and are provided with a third hinge joint position and a fourth hinge joint position which are distributed in the front and the rear; the lower end of the second connecting rod is hinged to the third hinge position, the lower end of the fourth connecting rod is hinged to the fourth hinge position, and the upper end of the fourth connecting rod is hinged to the cushion.
Preferably, the length of the fourth link in the front linkage is greater than the length of the fourth link in the rear linkage.
Preferably, the positioning frame is provided with a first limiting part for supporting the first connecting rod, and the first limiting part is located at the rear side of the first hinge position; the positioning frame is provided with a safety limiting part for supporting the third connecting rod, the safety limiting part is positioned on the front side of the second hinge position, and when the first limiting part fails, the third connecting rod is supported on the safety limiting part.
Preferably, the rear connecting rod group is provided with a rear stabilizing pipe connecting position at the lower end position of the second connecting rod.
Preferably, the first linkage rod is provided with a front stabilizing pipe connecting position.
Preferably, the bottom of the spacer has a mounting opening for mounting the spacer to the sofa frame.
Preferably, the backrest mechanism comprises a fixed plate, a backrest connecting plate, a first linkage rod, a second linkage rod and a third linkage rod;
the fixed plate is fixed at the rear end of the cushion, and the upper side of the fixed plate is provided with a front connecting rod and a rear connecting rod;
the backrest connecting plate is provided with a fifth hinge position and a sixth hinge position which are distributed in the front-back direction, the fifth hinge position is hinged with the front connecting rod, and the sixth hinge position is hinged with the upper end of the first connecting rod;
the upper end of the second linkage rod is provided with a seventh hinge position and an eighth hinge position which are distributed in the front-back direction, the seventh hinge position is hinged with the lower end of the first linkage rod, and the eighth hinge position is hinged with the rear connecting rod;
the lower end of the second linkage rod is hinged with the third linkage rod, and the lower end of the third linkage rod is hinged on the positioning frame.
Preferably, the front connecting rod is provided with a second limiting piece for supporting the backrest connecting plate; and the second linkage rod is provided with a third limiting part for limiting the functional iron frame to be continuously unfolded in the lying position.
Preferably, a second linkage rod is arranged between the pedal mechanism and the rear connecting rod group.
The utility model has the advantages that: the structure of preceding linkage is unanimous with the structure of back linkage, can simplify the structure to in production, can promote the smoothness nature and the stability of operation again.
Drawings
Fig. 1 is a perspective view of the functional iron frame of the full-link sofa provided in this embodiment in a sitting position;
fig. 2 is a schematic view of the functional iron frame of the full-link sofa provided in this embodiment in a sitting position;
fig. 3 is a schematic view of the seat cushion mechanism provided in this embodiment in a sitting position;
fig. 4 is a perspective view of the functional iron frame of the full-link sofa in a leisure posture according to the embodiment;
fig. 5 is a schematic view of the functional iron frame of the full-link sofa provided in this embodiment in a leisure posture state;
fig. 6 is a perspective view of the functional iron frame of the full link sofa in the lying position according to the embodiment;
fig. 7 is a schematic view of the functional iron frame of the full-link sofa provided in this embodiment in a lying position.
Detailed Description
The present invention will be further described with reference to fig. 1 to 7.
A full-link sofa functional iron frame comprises a seat cushion mechanism 3, a pedal mechanism 2 connected to the front side of the seat cushion mechanism 3 and a backrest mechanism 4 connected to the rear side of the seat cushion mechanism 3. The cushion mechanism 3 comprises a positioning frame 7 and a cushion component. The positioning frame 7 comprises two parallel positioning plates 72 and a rear motor driving pipe 71 which is connected to the rear ends of the two positioning plates 72 through bolts. The seat cushion assemblies are provided with two groups and are respectively connected to the two positioning plates 72, as shown in fig. 2 and 3, each seat cushion assembly comprises a front connecting rod group 31, a rear connecting rod group 32, a seat cushion 36 and a first linkage rod 35; the front linkage 31 and the rear linkage 32 are connected to the positioning plate 72 of the positioning frame 7 in a front-back distribution state, and each comprises a first connecting rod 311, a second connecting rod 312, a third connecting rod 313 and a fourth connecting rod 314, and the positioning plate 72 has a first hinge joint and a second hinge joint distributed in front-back at the area positions corresponding to the front linkage 31 and the rear linkage 32; the middle part of the second connecting rod 312 is hinged with the first end, namely the rear end, of the first connecting rod 311, and the second end, namely the front end, of the first connecting rod 311 is hinged on the first hinge position; the upper end of the second connecting rod 312 is hinged with the first end, namely the front end, of the third connecting rod 313, and the second end, namely the rear end, of the third connecting rod 313 is hinged on the second hinge position; the front end and the rear end of the first linkage rod 35 respectively correspond to the front connecting rod group 31 and the rear connecting rod group 32, and the front end and the rear end of the first linkage rod 35 are respectively provided with a third hinge joint position and a fourth hinge joint position which are distributed front and back; the lower end of the second link 312 is hinged to the third hinge position, the lower end of the fourth link 314 is hinged to the fourth hinge position, and the upper end of the fourth link 314 is hinged to the seat cushion 36. In this embodiment, the upper end of the fourth link 314 in the front linkage 31 is hinged to the outer side surface of the seat cushion 36, and the upper end of the fourth link 314 in the rear linkage 32 is hinged to the inner side surface of the seat cushion 36, so as to improve the stability of the seat cushion 36 mounted on the front linkage 31 and the rear linkage 32.
The length of the fourth link 314 in the front linkage 31 is greater than the length of the fourth link 314 in the rear linkage 32, and the upper end of the fourth link 314 is inclined rearward in the normal sitting posture. When the upper ends of the two fourth links 314 rotate forwards simultaneously, the height of the upper ends of the fourth links 314 at the front side is gradually higher than the height of the upper ends of the fourth links 314 at the rear side, as shown in fig. 3, in order to raise the rising height of the front end of the seat cushion, an included angle a is formed between a straight line formed by the hinge holes at the upper and lower ends of the fourth links 314 at the rear side and a horizontal plane, an included angle B is formed between a straight line formed by the hinge holes at the upper and lower ends of the fourth links 314 at the front side and the horizontal plane, and the included angle a is larger than the included angle B, so that when the upper ends of the two fourth links 314 rotate forwards, the front end position of the seat cushion 36 is gradually raised relative to the rear end position of the seat cushion 36, the height of the pedal mechanism 2 is obviously higher than the height of the backrest mechanism 4, the effect of zero-gravity lying posture is achieved, the comfort of the seat cushion is obviously improved, and the seat cushion has the characteristic of stable structure.
The positioning plate 72 of the positioning frame 7 is provided with a first limiting member 33 for supporting the first link 311, the first limiting member 33 is located at the rear side of the first hinge position, and when the chair is in a normal sitting posture state or a leisure posture state, the rear side surface of the first link 311 is supported on the first limiting member 33, so that the rear of the front linkage 31 and the rear linkage 32 are in a positioning state. The positioning plate 72 of the positioning frame 7 is further provided with a safety limiting part 34 for supporting the third connecting rod 313, the safety limiting part 34 is located at the front side of the second hinge position, and after the first limiting part 33 fails, the third connecting rod 313 falls down to a certain height and then is supported on the safety limiting part 34, so that the problem that the cushion assembly sinks excessively after the first limiting part 33 fails is solved.
The rear linkage 32 has a rear stabilizer tube connection 3211 at a lower end of the second link 312, and the rear stabilizer tube connection 3211 is formed by bending the corresponding lower end of the second link 312 inward. The rear stabilizer tube 6 can be connected between the second links 312 of the two rear link groups 32 by the rear stabilizer tube connection sites 3211. The first linkage rods 35 are provided with front stabilizing pipe connecting positions 351, the front stabilizing pipe connecting positions 351 are connecting holes, and a front stabilizing pipe 5 can be arranged between the two first linkage rods 35 through the connecting holes. Through preceding stable pipe and back stable pipe, can guarantee the synchronization action of two sets of cushion subassemblies.
As shown in fig. 1, the bottom of the positioning plate 72 of the positioning frame 7 has a mounting opening for mounting the positioning frame 7 to the sofa frame.
As shown in fig. 7, the backrest mechanism 4 includes a fixed plate 41, a backrest connecting plate 42, a first linkage 43, a second linkage 44, and a third linkage 45. The fixed plate 41 is fixed to the rear end of the seat cushion 36 by screws, and a front link 411 and a rear link 412 are formed at the upper side of the fixed plate 41. The backrest connecting plate 42 is provided with a fifth hinge position and a sixth hinge position which are distributed in the front-back direction, the fifth hinge position is hinged with the front connecting rod 411, and the sixth hinge position is hinged with the upper end of the first linkage rod 43. The upper end of the second linkage rod 44 is provided with a seventh hinge position and an eighth hinge position which are distributed in the front-back direction, the seventh hinge position is hinged with the lower end of the first linkage rod 43, and the eighth hinge position is hinged with the rear connecting rod 412. The lower end of the second linkage rod 44 is hinged to the third linkage rod 45, and the lower end of the third linkage rod 45 is hinged to the positioning plate 72 of the positioning frame 7.
The front connecting rod 411 is provided with a second limiting piece 47 for supporting the backrest connecting plate 42, the lower side position of the front end of the backrest connecting plate 42 is provided with a limiting rod 421, and when the backrest connecting plate is in a normal sitting position, the rear side surface of the limiting rod 421 abuts against the second limiting piece 47, so that the problem of shaking of the backrest is avoided; the second linking rod 44 is provided with a third limiting member 46 for limiting the functional iron frame from continuously unfolding when the functional iron frame is in the lying position.
As shown in fig. 5, the footrest mechanism 2 includes a first rod 21, a second rod 22, a third rod 24, a fourth rod 25, and a leg rest assembly 23. In the front end position of the seat cushion 36, there are a ninth hinge position and a tenth hinge position, which are distributed back and forth. The rear end of the first rod body 21 is hinged to the ninth hinge position, the front end of the first rod body is hinged to the rear end of the second rod body 22, the rear end of the third rod body 24 is hinged to the tenth hinge position, the front end of the third rod body is hinged to the rear end of the fourth rod body 25, and the front end of the second rod body 22 and the front end of the fourth rod body 25 are hinged to the leg placing component 23. A fourth stopper 26 is provided on the third rod 24 for the first rod 21 to abut against, that is, when the first rod 21 abuts against the fourth stopper 26, the leg rest assembly 23 is in a fully extended state.
A second linkage rod 9 is provided between the third rod 24 and the fourth link 314 in the rear linkage 32. That is, the front end position of the second linkage rod 9 is hinged to the rear end position of the third rod 24, and the rear end position of the second linkage rod 9 is hinged to the fourth link 314 in the rear linkage 32.
In this embodiment, the first limiting member 33 to the fourth limiting member are positioning sleeves. The safety limiting part 34 supported by the third connecting rod 313 on the front side is formed by bending a local position on the positioning plate 72, and the safety limiting part 34 supported by the third connecting rod 313 on the rear side is a positioning sleeve; the first hinge position to the tenth hinge position are hinge holes; the hinge structures mentioned in the present embodiment are all realized by pin rods.
When the pedal mechanism works, the motor end of the electric push rod 1 is hinged on the rear motor driving pipe 71, the push rod end of the electric push rod 1 is hinged with the front motor driving pipe 8, and two ends of the front motor driving pipe 8 are connected with the first rod body 21 in the pedal mechanism 2 through screws. When the user goes from a sitting posture to a leisure posture, the electric push rod 1 extends to drive the pedal mechanism 2 to be unfolded; meanwhile, the upper ends of two fourth connecting rods 314 in the cushion component are driven by the second linkage rod 9 to rotate forwards, so as to drive the cushion 36 to move forwards and upwards, and when the cushion 36 moves, the height difference between the front end and the rear end of the cushion 36 is gradually increased, so that the comfort in the leisure posture is improved; when going from a leisure position to a lying position, the electric push rod 1 continues to extend, the pedal mechanism and the seat cushion 36 are pulled to continue to move forwards, namely the upper end of the first connecting rod 311 swings forwards, so that the first connecting rod 311 is separated from the first limiting piece 33, the height difference between the front end and the rear end of the seat cushion 36 continues to increase, and the first connecting rod 311 is supported on the first limiting piece 33 when going from a sitting position and the leisure position; in the process, the fixed plate 41 is driven by the seat cushion 36 to move forward, the upper end of the backrest connecting plate 42 is gradually tilted backward under the cooperation of the first linking rod 43, the second linking rod 44 and the third linking rod 45, until the position is completely switched to the lying position, the third limiting member 46 abuts against the rear connecting rod 412, and the limiting effect is achieved. The push rod is pushed to be folded, so that the utility model can be switched from the lying posture to the leisure posture and finally to the sitting posture.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (9)
1. The utility model provides a full connecting rod formula sofa function iron stand, includes cushion mechanism, connects in the pedal mechanism of cushion mechanism front side and connects in the back mechanism of cushion mechanism rear side, characterized by: the cushion mechanism comprises a positioning frame and a cushion component, and the cushion component comprises a front connecting rod group, a rear connecting rod group, a cushion and a first linkage rod;
the front connecting rod group and the rear connecting rod group are connected to the positioning frame in a front-rear distribution state and respectively comprise a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the positions of the positioning frame corresponding to the front connecting rod group and the rear connecting rod group are respectively provided with a first hinge joint and a second hinge joint which are distributed in a front-rear distribution state;
the middle part of the second connecting rod is hinged with the first end of the first connecting rod, and the second end of the first connecting rod is hinged on the first hinge position; the upper end of the second connecting rod is hinged with the first end of the third connecting rod, and the second end of the third connecting rod is hinged on the second hinge position;
the front end and the rear end of the first linkage rod respectively correspond to the front connecting rod group and the rear connecting rod group and are provided with a third hinge joint position and a fourth hinge joint position which are distributed in the front and the rear; the lower end of the second connecting rod is hinged to the third hinge position, the lower end of the fourth connecting rod is hinged to the fourth hinge position, and the upper end of the fourth connecting rod is hinged to the cushion.
2. The full link sofa iron frame according to claim 1, wherein: the length of the fourth connecting rod in the front connecting rod group is greater than that of the fourth connecting rod in the rear connecting rod group.
3. The full link sofa iron frame according to claim 1, wherein: the positioning frame is provided with a first limiting piece for supporting the first connecting rod, and the first limiting piece is positioned at the rear side of the first hinge position; the positioning frame is provided with a safety limiting part for supporting the third connecting rod, the safety limiting part is positioned on the front side of the second hinge position, and when the first limiting part fails, the third connecting rod is supported on the safety limiting part.
4. The full link sofa iron frame according to claim 1, wherein: the lower end of the second connecting rod in the rear connecting rod group is provided with a rear stabilizing pipe connecting position.
5. The full link sofa iron frame according to claim 4, wherein: the first linkage rod is provided with a front stabilizing pipe connecting position.
6. The full link sofa iron frame according to claim 1, wherein: the bottom of the positioning frame is provided with a mounting opening used for mounting the positioning frame to the sofa frame.
7. The full link sofa iron frame according to claim 1, wherein: the backrest mechanism comprises a fixed plate, a backrest connecting plate, a first linkage rod, a second linkage rod and a third linkage rod;
the fixed plate is fixed at the rear end of the cushion, and the upper side of the fixed plate is provided with a front connecting rod and a rear connecting rod;
the backrest connecting plate is provided with a fifth hinge position and a sixth hinge position which are distributed in the front-back direction, the fifth hinge position is hinged with the front connecting rod, and the sixth hinge position is hinged with the upper end of the first connecting rod;
the upper end of the second linkage rod is provided with a seventh hinge position and an eighth hinge position which are distributed in the front-back direction, the seventh hinge position is hinged with the lower end of the first linkage rod, and the eighth hinge position is hinged with the rear connecting rod;
the lower end of the second linkage rod is hinged with the third linkage rod, and the lower end of the third linkage rod is hinged on the positioning frame.
8. The full link sofa iron frame according to claim 7, wherein: the front connecting rod is provided with a second limiting piece for supporting the backrest connecting plate; and the second linkage rod is provided with a third limiting part for limiting the functional iron frame to be continuously unfolded in the lying position.
9. The full link sofa iron frame according to claim 1, wherein: and a second linkage rod is arranged between the pedal mechanism and the rear connecting rod group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691366.XU CN215502137U (en) | 2021-07-23 | 2021-07-23 | Full-connecting-rod type sofa functional iron frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121691366.XU CN215502137U (en) | 2021-07-23 | 2021-07-23 | Full-connecting-rod type sofa functional iron frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215502137U true CN215502137U (en) | 2022-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121691366.XU Active CN215502137U (en) | 2021-07-23 | 2021-07-23 | Full-connecting-rod type sofa functional iron frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215502137U (en) |
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2021
- 2021-07-23 CN CN202121691366.XU patent/CN215502137U/en active Active
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