CN211533533U - Electric sofa support suitable for improving telescopic stability of foot support - Google Patents
Electric sofa support suitable for improving telescopic stability of foot support Download PDFInfo
- Publication number
- CN211533533U CN211533533U CN202020114210.4U CN202020114210U CN211533533U CN 211533533 U CN211533533 U CN 211533533U CN 202020114210 U CN202020114210 U CN 202020114210U CN 211533533 U CN211533533 U CN 211533533U
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- connecting rod
- support
- foot
- seat frame
- driving
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- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model relates to an electric sofa support suitable for improving the expansion stability of a foot rest support, which comprises a seat frame and a pair of mounting plates; the foot support bracket is arranged on the front side of the seat frame and is suitable for stretching and contracting; the driving frame comprises a driving rod and two driving arms, wherein the two driving arms are respectively and fixedly connected with a pin shaft and a guide pillar, the two driving arms are respectively and rotatably connected with mounting plates on two sides through the pin shaft, an arc-shaped guide groove is formed in the mounting plates, the guide pillars are arranged on the driving arms, and the guide pillars penetrate out of the guide grooves; and the foot support connecting rod is arranged on the seat frame and is respectively connected with the guide pillar and the foot support bracket. The foot support connecting rod mechanism is optimized again, loss in the force transmission process is reduced, the driving frame can control the foot support bracket more directly and more reliably, and the support of the foot support bracket is more stable and reliable.
Description
Technical Field
The utility model relates to an electric sofa support suitable for improving the telescopic stability of a foot support.
Background
A conventional electric sofa support, as shown in fig. 1 and fig. 2, includes a bottom frame 91, a seat frame 10, a driving frame 90, a foot rest support 95, a first link 92, a second link 93, a third link 94 and a tension spring 98; the seat frame 10 is connected with the bottom frame 91 through a pair of link mechanisms, the seat frame 10 swings in an arc shape on the bottom frame 91 through the link mechanisms, the driving frame 90 is installed on the seat frame 10, the driving frame 90 is connected with the first link 92, the first link 92 is connected with the second link 93, the middle part of the second link 93 is connected with the seat frame 10 in a switching mode, the second link 93 is connected with the third link 94, the third link 94 is connected with the foot rest support bracket 95, the foot rest bracket 95 is installed at the front end of the seat frame 10, and when the driving frame 90 rotates, the foot rest bracket 95 is driven to extend or retract through the first link 92, the second link 93 and the third link 94;
the problem that the conventional electric sofa support has is that the driving frame 90 drives the foot support bracket 95 to be better retracted, the tension spring 98 is arranged between the rear end of the seat frame 10 and the second connecting rod 93, the tension spring 98 provides force for pulling the foot support bracket 95 backwards, the retraction tightness depends on the tension of the tension spring 98, when the elastic force of the tension spring 98 is too large, the foot plate is ejected by inertia and does not extend out at a constant speed, the comfort of the sofa is reduced, and the tension spring 98 can be fatigued along with the increase of the operation times, so that the foot support of the sofa can not be completely retracted in the later period. Secondly, the foot rest bracket 95 is respectively wound to the rear side of the seat frame 10 through three connecting rods and is transmitted to the driving frame 90 at the front side, when the bearing force borne by the foot rest bracket 95 is transmitted to the driving frame 90, the distance is long, and the installation gaps among the connecting rods can be gradually accumulated together, so that the sinking supporting force of the foot rest bracket 95 is insufficient when the foot rest bracket bears the gravity after the foot rest bracket 95 is completely extended; finally, in the conventional electric sofa support, the number of the members constituting the seat frame 10 is large, resulting in an increase in the weight of the entire sofa support.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide an electronic sofa support that is suitable for promotion foot to hold in the palm support flexible stability, solve in the past the drive frame and drive the flexible unstable problem of foot support.
The utility model provides a technical scheme that its technical problem adopted is: be suitable for electronic sofa support that promotes foot and hold in palm flexible stability of support, include
A seat frame including a pair of mounting plates;
the foot support bracket is arranged on the front side of the seat frame and is suitable for stretching and contracting;
the driving frame comprises a driving rod and two driving arms, wherein the two driving arms are respectively and fixedly connected with a pin shaft and a guide pillar, the two driving arms are rotatably connected with mounting plates on two sides through the pin shaft, an arc-shaped guide groove is formed in the mounting plates, the guide pillars are arranged on the driving arms, and the guide pillars penetrate out of the guide groove;
the foot support connecting rod is arranged on the seat frame and is respectively connected with the guide pillar and the foot support bracket;
the driving frame drives the guide pillar to move in the arc-shaped guide groove to the contraction station, the foot support bracket is driven to contract through the foot support connecting rod, and the driving frame drives the guide pillar to move in the arc-shaped guide groove to the extension station, and the foot support bracket is driven to extend through the foot support connecting rod.
Furthermore, the foot support connecting rod comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod;
the middle part of the first connecting rod is fixedly connected with the pin shaft, one end of the first connecting rod is fixedly connected with the guide pillar in a switching way, and the other end of the first connecting rod is connected with one end of the second connecting rod in a switching way;
the other end of the second connecting rod is connected with a third connecting rod in a switching way, and the other end of the third connecting rod is connected with the seat frame in a switching way;
one end of the fourth connecting rod is connected with the foot support bracket in a switching way, and the other end of the fourth connecting rod is connected with the middle part of the second connecting rod in a switching way.
Further, electronic sofa support still includes underframe, two connecting rod seats, sets up two lifting connecting rods between the mounting panel of every connecting rod seat and this side, sets up first stiffener between two mounting panels.
Furthermore, a second reinforcing rod is transversely and fixedly arranged on the seat frame;
when the seat frame is not lifted, the seat frame is placed on the two connecting rod seats through the second reinforcing rod.
Furthermore, a foot plate extending support is arranged at the front end of the foot support and is suitable for supporting the heel part.
The utility model has the advantages that:
when the driving frame drives the foot support bracket to extend through the foot support connecting rod, the supporting force born by the foot support bracket is directly transmitted to the front side of the seat frame through the third connecting rod, the second connecting rod and the first connecting rod, so that the foot support bracket is supported more powerfully and stably; when the driving frame drives the foot support bracket to retract through the foot support connecting rod, the rotating force of the driving frame can be directly transmitted to the foot support bracket at the front side of the seat frame, so that the foot support bracket can be more forcefully retracted.
The structure of the seat frame is optimized, the structure of the seat frame is simplified, and the weight of the seat frame is reduced while the weight of the whole sofa support is reduced.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a conventional sofa support;
FIG. 2 is a schematic view of the seat frame of the transmission sofa support;
fig. 3 is a schematic view of the sofa support of the present invention in a normal mode;
fig. 4 is a schematic view of the sofa support of the present invention in the standing-assistant mode;
fig. 5 is a schematic view of the sofa support of the present invention in the TV mode;
fig. 6 is a schematic view of the sofa support of the present invention in a leisure mode;
FIG. 7 is a schematic view of the drive frame and the foot rest link;
FIG. 8 is a schematic view of a bezel;
the foot plate extension mechanism comprises a base frame 1, a bottom frame 2, a seat frame 21, an installation plate 22, a guide groove 23, a first reinforcing rod 24, a second reinforcing rod 3, a driving frame 31, a driving rod 32, a driving arm 33, a guide pillar 34, a pin shaft 4, a foot support bracket 5, a foot support connecting rod 51, a first connecting rod 52, a second connecting rod 53, a third connecting rod 54, a fourth connecting rod 61, a first linear motor 62, a second linear motor 7, a connecting rod seat 8, a backrest bracket 81 and a foot plate extension bracket.
Detailed Description
The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 3 to 8, an electric sofa support adapted to improve the telescopic stability of a foot rest support 4 comprises a seat frame 2 including a pair of mounting plates 21;
the foot rest bracket 4 is arranged at the front side of the seat frame 2 and is suitable for stretching and contracting;
the driving frame 3 comprises a driving rod 31 and two driving arms 32, wherein the two driving arms 32 are respectively and fixedly connected with a pin shaft 34 and a guide post 33, the two driving arms 32 are rotatably connected with the mounting plates 21 on two sides through the pin shaft 34, the mounting plates 21 are provided with arc-shaped guide grooves 22, the driving arms 32 are provided with the guide posts 33, and the guide posts 33 penetrate out of the guide grooves 22;
the foot support connecting rod 5 is arranged on the seat frame 2 and is respectively connected with the guide pillar 33 and the foot support bracket 4;
when the driving frame 3 drives the guide post 33 to move in the arc-shaped guide groove 22 to the contraction station, the foot support bracket 4 is driven to contract by the foot support connecting rod 5, and when the driving frame 3 drives the guide post 33 to move in the arc-shaped guide groove 22 to the extension station, the foot support bracket 4 is driven to extend by the foot support connecting rod 5.
Specifically, as shown in fig. 7, the footrest link 5 includes a first link 51, a second link 52, a third link 53, and a fourth link 54; the middle part of the first connecting rod 51 is fixedly connected with the pin shaft 34, one end of the first connecting rod 51 is fixedly connected with the guide pillar 33, and the other end of the first connecting rod 51 is connected with one end of the second connecting rod 52 in a switching way; the other end of the second connecting rod 52 is connected with a third connecting rod 53 in a switching way, and the other end of the third connecting rod 53 is connected with the seat frame 2 in a switching way; one end of the fourth link 54 is connected to the foot rest 4, and the other end of the fourth link 54 is connected to the middle of the second link 52.
The first link 51 and the driving arm 32 are integrally fixed to each other by a pin 34 and a guide post 33, and rotate together about the pin 34.
Whole foot holds in the palm connecting rod 5 and is located seat frame 2 front side, and when guide pillar 33 was doing rotatory operation, the moving force of guide pillar 33 can directly drive foot support 4 flexible through foot support connecting rod 5, makes the control of drive frame 3 to foot support 4 more direct, reliable, stable.
Specifically, the electric sofa support of this embodiment further includes a bottom frame 1 and two link seats 7, two lifting links are disposed between each link seat 7 and the mounting plate 21 on the side, and a first reinforcing rod 23 is disposed between the two mounting plates 21.
Preferably, a second reinforcing rod 24 is transversely and fixedly arranged on the seat frame 2; when the seat frame 2 is not lifted, the seat frame 2 rests on the two link seats 7 via the second reinforcement bar 24, as shown in fig. 3, 5 and 6. By optimizing the structure of the seat frame 2, the weight of the seat frame 2 is reduced, and the overall weight of the sofa support is reduced.
Optionally, the electric sofa support of this embodiment includes back support 8, and back support 8 connects in seat frame 2 rear end, sets up first linear electric motor 61 on the underframe 1, and first linear electric motor 61 drives the drive frame 3 rotatory, installs second linear electric motor 62 on the first stiffener 23, and second linear electric motor 62 drives back support 8 and extends.
Preferably, as shown in fig. 5 and 6, a foot plate extension bracket 81 is arranged at the front end of the foot support bracket and is suitable for supporting the heel part.
The electric sofa support of the utility model has four working modes;
in the first normal mode, as shown in fig. 3, the user is in a normal sitting position, the foot rest support 4 and the backrest support 8 are retracted, the guide post 33 is in the retracted position, and the seat frame 2 rests on the bottom frame 1;
a second standing-assistant mode, as shown in fig. 4, is convenient for the user to get up, the first linear motor 61 extends out, and the seat frame 2 is driven by the driving frame 3 to lift, so that the seat frame 2 keeps inclining forwards;
in the third TV mode, as shown in fig. 5, the user can watch TV conveniently, and in the normal mode, the first linear motor 61 retracts to drive the driving rack 3 to rotate, so as to drive the guide post 33 to move in the guide slot 22, the guide post 33 moves from the retracting station to the extending station, so as to extend the foot rest support 4, and the extending process depends on the foot rest connecting rod 5, so that the extending is more stable and reliable.
The fourth leisure mode, as shown in fig. 6, is convenient for the user to see and rest, and at this time, based on the third TV mode, the second straight line is contracted to drive the backrest support 8 to rotate, so that the backrest support 8 is unfolded.
The utility model discloses an electronic sofa support has optimized the foot again and has held in the palm 5 mechanisms of connecting rod, has reduced loss among the power transmission process, makes the control that the drive frame 3 held in the palm support 4 to the foot more direct, and is more reliable, also makes the support that the foot held in the palm support 4 more reliable and more stable. Meanwhile, the structure of the seat frame 2 is optimized, and the weight of the sofa support is reduced.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. An electric sofa support suitable for improving the telescopic stability of a foot support is characterized by comprising
A seat frame including a pair of mounting plates;
the foot support bracket is arranged on the front side of the seat frame and is suitable for stretching and contracting;
the driving frame comprises a driving rod and two driving arms, wherein the two driving arms are respectively and fixedly connected with a pin shaft and a guide pillar, the two driving arms are respectively and rotatably connected with mounting plates on two sides through pin shafts, arc-shaped guide grooves are formed in the mounting plates, and the guide pillars penetrate out of the guide grooves;
the foot support connecting rod is arranged on the seat frame and is respectively connected with the guide pillar and the foot support bracket;
the driving frame drives the guide pillar to move in the arc-shaped guide groove to the contraction station, the foot support bracket is driven to contract through the foot support connecting rod, and the driving frame drives the guide pillar to move in the arc-shaped guide groove to the extension station, and the foot support bracket is driven to extend through the foot support connecting rod.
2. The power sofa support adapted to improve the stability of the foot rest support in extension and retraction according to claim 1, wherein the foot rest linkage comprises a first linkage, a second linkage, a third linkage, and a fourth linkage;
the middle part of the first connecting rod is fixedly connected with the pin shaft, one end of the first connecting rod is fixedly connected with the guide pillar in a switching way, and the other end of the first connecting rod is connected with one end of the second connecting rod in a switching way;
the other end of the second connecting rod is connected with a third connecting rod in a switching way, and the other end of the third connecting rod is connected with the seat frame in a switching way;
one end of the fourth connecting rod is connected with the foot support bracket in a switching way, and the other end of the fourth connecting rod is connected with the middle part of the second connecting rod in a switching way.
3. The electric sofa support adapted to improve the stretching stability of the foot rest support according to claim 1,
the electric sofa support further comprises a bottom frame and two connecting rod seats, two lifting connecting rods are arranged between each connecting rod seat and the mounting plate on the side, and a first reinforcing rod is arranged between the two mounting plates.
4. The electric sofa support suitable for improving the telescopic stability of the foot rest support according to claim 3, wherein a second reinforcing rod is transversely and fixedly arranged on the seat frame;
when the seat frame is not lifted, the seat frame is placed on the two connecting rod seats through the second reinforcing rod.
5. The electric sofa support suitable for improving the stretching stability of the foot rest support according to claim 1, wherein the foot plate extension support is arranged at the front end of the foot rest support and is suitable for supporting the heel part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114210.4U CN211533533U (en) | 2020-01-18 | 2020-01-18 | Electric sofa support suitable for improving telescopic stability of foot support |
| US16/993,576 US11166562B2 (en) | 2020-01-18 | 2020-08-14 | Footrest driving apparatus and lift chair therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114210.4U CN211533533U (en) | 2020-01-18 | 2020-01-18 | Electric sofa support suitable for improving telescopic stability of foot support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211533533U true CN211533533U (en) | 2020-09-22 |
Family
ID=72492648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020114210.4U Expired - Fee Related CN211533533U (en) | 2020-01-18 | 2020-01-18 | Electric sofa support suitable for improving telescopic stability of foot support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211533533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111053392A (en) * | 2020-01-18 | 2020-04-24 | 常州泽辉机械有限公司 | Electric sofa support suitable for improving telescopic stability of foot support |
-
2020
- 2020-01-18 CN CN202020114210.4U patent/CN211533533U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111053392A (en) * | 2020-01-18 | 2020-04-24 | 常州泽辉机械有限公司 | Electric sofa support suitable for improving telescopic stability of foot support |
| CN111053392B (en) * | 2020-01-18 | 2024-11-29 | 常州泽辉机械有限公司 | Electric sofa support suitable for improving expansion stability of foot support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20210118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |