CN210330037U - Sofa extension support and extension device - Google Patents
Sofa extension support and extension device Download PDFInfo
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- CN210330037U CN210330037U CN201920281039.3U CN201920281039U CN210330037U CN 210330037 U CN210330037 U CN 210330037U CN 201920281039 U CN201920281039 U CN 201920281039U CN 210330037 U CN210330037 U CN 210330037U
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Abstract
The utility model discloses a sofa extends support and extension fixture, extend the mechanism including setting up the shank on the seat frame mounting panel, shank extends the mechanism and includes link mechanism, extension mechanism, first foot rest and second foot rest, the one end of extending the mechanism is connected with link mechanism through first foot rest, and the other end and the second foot rest of extending the mechanism are connected, link mechanism is used for the drive extend the mechanism with first foot rest extends or contracts, it is used for the drive to extend the mechanism second foot rest extends or contracts, so that first foot rest with when second foot rest contracts to extreme position, the preceding terminal surface of first foot rest with the preceding terminal surface of second foot rest becomes certain contained angle. The stretching device comprises a driving mechanism, a base and two stretching brackets. Adopt the utility model discloses increased the bracket area of sofa, improved use comfort, made the footrest ground clearance increase in the motion, avoided wiping and bumped ground.
Description
Technical Field
The utility model relates to a mechanical extension technical field of function furniture especially relates to a sofa extension support and stretching device.
Background
The functional sofa is rapidly developed in the Chinese sofa market in recent years, and more people can select the multifunctional sofa with good comfort degree when purchasing furniture. As a preferred sofa seat during leisure, if the sofa seat is unreasonably designed, the sofa seat not only can not relax and relieve fatigue, but also can cause various diseases such as lumbar muscle strain, cumulative trauma and the like.
Compared with the traditional sofa, the functional sofa has greater superiority. Can realize the stable transformation from sitting posture to lying posture and meet the requirements of sitting, leisure, sleeping and the like. When sitting, the backrest can well support the back, the seat height is proper, the thighs and the calves are guaranteed to be basically vertical, and the feet are flatly placed on the ground, so that the muscles at the bottoms of the thighs can be relaxed. In the leisure position, the backrest is still or slightly topples. The leg rest mechanism is slowly opened to support the legs of the person and relax the muscles of the legs. When the user lies down, the backrest moves backwards, the human body lies on the sofa, the spine is completely relaxed, and the footrest can reach the horizontal position to support the legs and relieve the fatigue of the legs.
In order to meet the functional requirements and the use comfort level of a user, the foot rest is designed to have a large area, the movement is stable in posture change, and the mechanical stretching device capable of avoiding the conditions of sudden speed change, trembling, inclination, blocking and the like is necessary.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve lies in solving the problem that current function sofa mechanical extension device footrest size is less, the footrest wipes ground easily at flexible in-process.
In order to solve the technical problem, the utility model provides a sofa extends support to not enough and defect to prior art, including setting up the shank extension mechanism on the seat frame mounting panel, shank extension mechanism includes link mechanism, extension mechanism, first footrest and second footrest, extension mechanism's one end is passed through first footrest with link mechanism connects, extension mechanism's the other end with the second footrest is connected, link mechanism is used for the drive extension mechanism with first footrest extends or contracts, extension mechanism is used for the drive second footrest extends or contracts, so that first footrest with when second footrest contracts to extreme position, first footrest's preceding terminal surface with the preceding terminal surface of second footrest becomes certain contained angle.
Furthermore, the extension mechanism comprises a V-shaped guide rod, a first linkage rod and a second linkage rod which are arranged in a staggered mode, two ends of the first linkage rod are located on two sides of the second linkage rod respectively, one end of the first linkage rod is connected with the first linkage rod, the other end of the first linkage rod is connected with the V-shaped guide rod, one end of the second linkage rod is connected with the first footrest, the other end of the second linkage rod is connected with the second footrest, and the second linkage rod, the second footrest, the V-shaped guide rod and the first footrest form a planar four-bar mechanism.
Further, when the leg stretching mechanism is contracted to the limit position, the included angle between the front end surface of the first foot rest and the front end surface of the second foot rest is 20-70 degrees.
Further, extend the mechanism and still be provided with the locating part, the locating part set up in on the first foot rest, when shank extends the mechanism and extends to the position of lying the appearance, the locating part with the second trace is contradicted.
Further, a first footrest is arranged on the first footrest, and a second footrest is arranged on the second footrest.
Further, when the leg stretching mechanism is stretched to the lying position, the first footrest and the second footrest are parallel.
Furthermore, a connecting hole is formed in the bent part of the V-shaped guide rod, and the first linkage rod is connected with the V-shaped guide rod through a pin and the connecting hole.
Further, the bending angle of the V-shaped guide rod is 110-145 degrees.
Furthermore, the first linkage rod and the second linkage rod are hook-shaped.
Further, the first foot rest is of an inverted triangular structure.
Further, the link mechanism comprises a first rocker, a second rocker, a first connecting rod and a second connecting rod;
one end of the first rocker is connected with the seat frame mounting plate, the other end of the first rocker is connected with the first connecting rod, one end of the second rocker is connected with the seat frame mounting plate, the other end of the second rocker is connected with the second connecting rod, the first rocker and the second connecting rod are arranged in a crossed mode through a limiting pin, and the seat frame mounting plate, the first rocker, the second rocker and the second connecting rod form a planar four-bar mechanism;
one end of the first connecting rod is connected with the first rocker, the other end of the first connecting rod is connected with the first connecting rod, one end of the second connecting rod is connected with the second rocker, the other end of the second connecting rod is connected with the first footrest, and the first rocker, the first connecting rod, the second connecting rod and the first footrest form a planar four-bar mechanism.
Further, when the leg stretching mechanism is stretched to the lying position, the distance between the second footrest and the front end of the seat frame mounting plate is more than or equal to 39 cm.
The utility model also provides a sofa stretching device, extend the support including actuating mechanism, base and two, actuating mechanism sets up on the base, two extend the support and pass through seat frame mounting panel symmetry setting and be in the side of base.
Furthermore, actuating mechanism includes driving piece, push rod and drive connecting rod, driving piece one end is fixed the base middle part, the other end with the push rod is connected, the push rod with the drive connecting rod is connected.
Furthermore, the two ends of the driving connecting rod are provided with linkage plates, one end of each linkage plate is connected with the driving connecting rod, and the other end of each linkage plate is connected with the second remote rod. Implement the embodiment of the utility model provides a, following beneficial effect has:
(1) the utility model discloses shank extends the mechanism and is provided with extension mechanism, has increased the second and has put the foot rest, when making the sofa switch to the appearance position of lying, whole bracket position size increases, and the increase of bracket area has improved sofa chair use comfort.
(2) The utility model discloses be provided with the extension mechanism and make the preceding terminal surface of first foot rest and second foot rest become certain angle when shank extends the support and contracts extreme position, the design of this angle makes the ground clearance grow of second foot rest and second footrest when concertina movement, avoids wiping the phenomenon of bumping ground, has increased the motion stationarity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a sofa extension bracket of the present invention;
fig. 2 is a schematic structural view of the leg stretching mechanism of the present invention in a contracted state;
FIG. 3 is a schematic front view of the leg stretching mechanism of the present invention;
fig. 4 is a schematic view of the back structure of the leg stretching mechanism of the present invention;
fig. 5 is a schematic structural diagram of the extending mechanism of the present invention;
fig. 6 is a schematic structural view of the sofa stretching device of the present invention.
Wherein the reference numerals are: 10-seat frame mounting plate, 20-backrest assembly, 30-linkage mechanism, 400-leg extension mechanism, 410-linkage mechanism, 411-first rocker, 412-first connecting rod, 413-second rocker, 414-second connecting rod, 415-first foot rest, 416-first foot rest, 417-first mounting plate, 418-limiting pin, 420-extension mechanism, 421-first connecting rod, 422-second linkage rod, 423-V-shaped guide rod, 424-second foot rest, 425-second foot rest, 426-limiting piece, 427-second mounting plate, 50-driving mechanism, 51-driving piece, 52-push rod, 53-driving connecting rod, 54-linkage plate, 60-base and 100-extension support.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
Example 1:
as shown in fig. 1-5, the present invention provides a sofa extension support, which comprises a backrest assembly 20, a linkage mechanism 30 and a leg extension mechanism 400, which are disposed on a seat frame mounting plate 10, wherein one end of the linkage mechanism 30 is connected to the backrest assembly 20, and the other end is connected to the leg extension mechanism 400;
Specifically, extension mechanism 420 includes V-shaped guide bar 423, first trace 421 and second trace 422 that the crisscross setting, the both ends of first trace 421 are located respectively the both sides of second trace 422, the one end of first trace 421 is connected with first trace 412, the other end of first trace 421 is connected with V-shaped guide bar 423, the one end of second trace 422 is connected with first foot rest 415, the other end of second trace 422 is connected with second foot rest 424, second trace 422, second foot rest 424, V-shaped guide bar 423 and first foot rest 415 form plane four-bar linkage.
Specifically, a first footrest 416 is disposed on the first footrest 415, and a second footrest 425 is disposed on the second footrest 424.
Specifically, when the leg extension mechanism 400 is retracted to the extreme position, the included angle between the front end surface of the first foot rest 415 and the front end surface of the second foot rest 424 is 20 °, so that the second foot rest 425 does not touch the ground during extension and retraction.
Specifically, the first foot rest 415 is provided with a first mounting piece 417, the first mounting piece 417 is fixedly connected with the first foot rest 416, the second foot rest 424 is provided with a second mounting piece 427, and the second mounting piece is fixedly connected with the second foot rest 425. The first mounting piece 417 and the second mounting piece 427 are provided with mounting holes for mounting. The first foot rest 415 and the first mounting piece 417 are bent and integrally formed or welded, and the second foot rest 424 and the second mounting piece 427 are bent and integrally formed or welded. In some embodiments, the front surface of the first foot rest 415 is at an angle with the front surface of the second foot rest 424, i.e. the first mounting piece 417 is at an angle with the second mounting piece 427.
Specifically, when the leg stretching mechanism 400 is stretched to the lying position, the front end surfaces of the first foot rest 415 and the second foot rest 424 are parallel.
Specifically, the extension mechanism 420 is further provided with a limiting member 426, the limiting member 426 is disposed on the first foot rest 415, and when the leg extension mechanism 400 extends to the lying position, the limiting member 426 interferes with the second linkage 422. The limiting member 426 is used to limit the position of the second footrest 425 when the leg stretching mechanism is stretched to the lying position, so as to ensure the self-locking function of the sofa when the sofa is in the lying position.
Specifically, a connection hole is formed at the bent portion of the V-shaped guide rod 423, and the first link rod 421 is rotatably connected to the V-shaped guide rod 423 at the bent portion of the V-shaped guide rod 423 through a pin and the connection hole.
Specifically, the V-shaped guide rod 423 is bent at an angle of 110 ° to 145 °.
Specifically, the first foot rest 415 is an inverted triangle structure. The first footrest 416 is attached to the oblique side of the first footrest 415, and the footrest area can be increased.
Specifically, one end of the link mechanism 410 is connected to the front end of the seat frame mounting plate 10, and the other end is connected to the extension mechanism 420, and the link mechanism 410 includes a first rocker 411, a second rocker 413, a first link 412 and a second link 414; one end of the first rocker 411 is connected with the seat frame mounting plate 10, the other end of the first rocker 411 is connected with the first connecting rod 412, one end of the second rocker 413 is connected with the seat frame mounting plate 10, the other end of the second rocker 413 is connected with the second connecting rod 414, the first rocker 411 and the second connecting rod 414 are arranged in a crossed manner through a limiting pin 418, and the seat frame mounting plate 10, the first rocker 411, the second rocker 413 and the second connecting rod 414 form a planar four-bar mechanism;
specifically, one end of the first link 412 is connected to the first rocker 411, the other end of the first link 412 is connected to the first link 421, one end of the second link 414 is connected to the second rocker 413, the other end of the second link 414 is connected to the first foot rest 415, and the first rocker 411, the first link 412, the second link 414, and the first foot rest 415 form a planar four-bar mechanism.
Specifically, when the leg extension mechanism 400 is extended to the lying position, the distance between the second footrest 425 and the front end of the seat frame mounting plate 10 is not less than 39 cm. In order to better support and relieve legs, in practical application, the length of the front end of the leg stretching mechanism unfolded rear seat frame mounting plate 10 from the front end surface of the second footrest 425 is more than 39cm with reference to the size of a human adult and the relevant sofa seat standard.
As shown in fig. 6, the present invention provides a sofa stretching device, which comprises a driving mechanism 50, a base 60 and two stretching brackets 100, wherein the driving mechanism 50 is disposed on the base 60, and each stretching bracket 100 is disposed on the side of the base 60 through a seat frame mounting plate 10. The base 60 is a fixed cross bar, and the driving mechanism is fixed in the middle of the base. The two extension brackets 100 are respectively installed at both ends of the base and symmetrically disposed at both sides thereof.
Specifically, the driving mechanism 50 includes a driving member 51, a push rod 52 and a driving link 53, one end of the driving member 51 is fixed in the middle of the base 60, the other end of the driving member is connected to the push rod 52, and the push rod 52 is connected to the driving link 53. The driving mechanism is an electric push rod mechanism, wherein the driving piece is a driving motor and a reduction gear mechanism connected with the driving motor. In some embodiments, the push rod 52 may also be a slider rail.
Specifically, the two ends of the driving link 53 are both provided with a linking plate 54, and one end of each linking plate 54 is connected to the driving link 53, and the other end is connected to the second remote lever 413.
The utility model discloses mechanical stretching device, actuating mechanism passes through the motion of push rod 52, it removes to drive connecting rod 53, trace 54 connected with drive connecting rod 53 begins to rotate, the biplane four bar linkage that forms extends or contracts in the drive link mechanism 410, drive first connecting rod 421 through first connecting rod 412 and rotate, thereby realize extension mechanism 420 and second footrest 425's flexible, wherein the second footrest is arranged gradually in the motion route of first footrest, the ground clearance when second footrest 425 moves has been guaranteed with the design of colluding the shape trace to V-arrangement guide bar 423 simultaneously, avoided bumping touch ground in concertina movement, make the motion stationarity become good.
Example 2:
example 2 differs from example 1 in that: when the leg extension mechanism 400 is retracted to the extreme position, the included angle between the first foot rest 415 and the front end face of the second foot rest 424 is 45 °, so that the second foot rest 425 does not touch the ground during extension and retraction.
Example 3:
example 3 differs from example 2 in that: when the leg extension mechanism 400 is retracted to the extreme position, the included angle between the first foot rest 415 and the front end face of the second foot rest 424 is 70 °, so that the second foot rest 425 does not touch the ground during extension and retraction.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (15)
1. The sofa extension bracket is characterized by comprising a leg extension mechanism (400) arranged on a seat frame mounting plate (10), wherein the leg extension mechanism (400) comprises a connecting rod mechanism (410), an extension mechanism (420), a first foot rest (415) and a second foot rest (424), one end of the extension mechanism (420) is connected with the connecting rod mechanism (410) through the first foot rest (415), the other end of the extension mechanism (420) is connected with the second foot rest (424), the connecting rod mechanism (410) is used for driving the extension mechanism (420) and the first foot rest (415) to extend or retract, the extension mechanism (420) is used for driving the second foot rest (424) to extend or retract, so that when the first foot rest (415) and the second foot rest (424) retract to limit positions, the front end face of the first foot rest (415) and the front end face of the second foot rest (424) form a certain included angle.
2. The sofa extension support according to claim 1, wherein the extension mechanism (420) comprises a V-shaped guide rod (423), a first linkage rod (421) and a second linkage rod (422) which are alternately arranged, two ends of the first linkage rod (421) are respectively located at two sides of the second linkage rod (422), one end of the first linkage rod (421) is connected with the first linkage rod (412), the other end of the first linkage rod (421) is connected with the V-shaped guide rod (423), one end of the second linkage rod (422) is connected with the first footrest (415), the other end of the second linkage rod (422) is connected with the second footrest (424), and the second linkage rod (422), the second footrest (424), the V-shaped guide rod (423) and the first footrest (415) form a planar four-bar mechanism.
3. A sofa extension stand according to claim 1, characterised in that the angle between the front face of the first foot rest (415) and the front face of the second foot rest (424) is 20 ° to 70 ° when the leg extension mechanism (400) is retracted to the extreme position.
4. The sofa extension support according to claim 2, wherein the extension mechanism (420) further comprises a stopper (426), the stopper (426) is disposed on the first footrest frame (415), and when the leg extension mechanism (400) extends to the recumbent position, the stopper (426) interferes with the second linkage (422).
5. The sofa extension stand according to claim 1, wherein the first footrest (415) is provided with a first footrest (416) and the second footrest (424) is provided with a second footrest (425).
6. The sofa extension stand of claim 5, wherein the first footrest (416) and the second footrest (425) are parallel when the leg extension mechanism (400) is extended to the recumbent position.
7. The sofa stretching frame according to claim 2, wherein the bent portion of the V-shaped guide rod (423) is provided with a connection hole, and the first linkage rod (421) is connected with the V-shaped guide rod (423) through a pin and the connection hole.
8. The sofa stretching stand according to claim 7, wherein the angle of bending of the V-shaped guide rods (423) is 110-145 °.
9. The sofa stretching stand according to claim 2, wherein the first linkage bar (421) and the second linkage bar (422) are hook-shaped.
10. The sofa stretching stand according to claim 1, wherein the first foot rest (415) is of inverted triangular configuration.
11. A sofa stretching stand according to claim 2, characterized in that the linkage (410) comprises a first rocker (411), a second rocker (413), a first link (412) and a second link (414);
one end of the first rocker (411) is connected with the seat frame mounting plate (10), the other end of the first rocker (411) is connected with the first connecting rod (412), one end of the second rocker (413) is connected with the seat frame mounting plate (10), the other end of the second rocker (413) is connected with the second connecting rod (414), the first rocker (411) and the second connecting rod (414) are arranged in a crossed mode through a limiting pin (418), and the seat frame mounting plate (10), the first rocker (411), the second rocker (413) and the second connecting rod (414) form a plane four-bar mechanism;
one end of the first connecting rod (412) is connected with the first rocker (411), the other end of the first connecting rod (412) is connected with the first connecting rod (421), one end of the second connecting rod (414) is connected with the second rocker (413), the other end of the second connecting rod (414) is connected with the first foot rest (415), and the first rocker (411), the first connecting rod (412), the second connecting rod (414) and the first foot rest (415) form a planar four-bar mechanism.
12. The sofa extension stand according to claim 5, wherein the distance between the second footrest (425) and the front end of the seat frame mounting plate (10) when the leg extension mechanism (400) is extended to the recumbent position is greater than or equal to 39 cm.
13. A sofa stretching apparatus, comprising a driving mechanism (50), a base (60) and the stretching bracket (100) of any one of claims 1 to 12, wherein the driving mechanism (50) is arranged on the base (60), and two stretching brackets (100) are symmetrically arranged on the side of the base (60) through a seat frame mounting plate (10).
14. The sofa stretching apparatus according to claim 13, wherein the driving mechanism (50) comprises a driving member (51), a push rod (52) and a driving link (53), the driving member (51) is fixed to the middle of the base (60) at one end, the other end is connected to the push rod (52), and the push rod (52) is connected to the driving link (53).
15. The sofa stretching apparatus according to claim 14, wherein the driving link (53) is provided with a linkage plate (54) at both ends, and each linkage plate (54) is connected to the driving link (53) at one end and to the second rocking bar (413) at the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920281039.3U CN210330037U (en) | 2019-01-08 | 2019-03-04 | Sofa extension support and extension device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920025869X | 2019-01-08 | ||
| CN201920025869 | 2019-01-08 | ||
| CN201920281039.3U CN210330037U (en) | 2019-01-08 | 2019-03-04 | Sofa extension support and extension device |
Publications (1)
| Publication Number | Publication Date |
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| CN210330037U true CN210330037U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920281039.3U Active CN210330037U (en) | 2019-01-08 | 2019-03-04 | Sofa extension support and extension device |
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| Country | Link |
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| CN (1) | CN210330037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924750A (en) * | 2019-01-08 | 2019-06-25 | 锐迈机械科技（吴江）有限公司 | A kind of sofa extendable bracket and extending apparatus |
-
2019
- 2019-03-04 CN CN201920281039.3U patent/CN210330037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924750A (en) * | 2019-01-08 | 2019-06-25 | 锐迈机械科技（吴江）有限公司 | A kind of sofa extendable bracket and extending apparatus |
| CN109924750B (en) * | 2019-01-08 | 2024-06-11 | 锐迈科技股份有限公司 | Sofa stretching bracket and stretching device |
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Address after: 215200 west side of Tongjin Avenue, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Ruimai Technology Co.,Ltd. Address before: 215200 west side of Tongjin Avenue, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: REMACRO MACHINERY & TECHNOLOGY (WUJIANG) Co.,Ltd. |
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