CN211212233U - Electric sofa support suitable for lifting seat frame self-locking space - Google Patents
Electric sofa support suitable for lifting seat frame self-locking space Download PDFInfo
- Publication number
- CN211212233U CN211212233U CN201922451035.8U CN201922451035U CN211212233U CN 211212233 U CN211212233 U CN 211212233U CN 201922451035 U CN201922451035 U CN 201922451035U CN 211212233 U CN211212233 U CN 211212233U
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- seat frame
- locking
- rod
- station
- lifting
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Abstract
The utility model relates to an electric sofa support suitable for lifting a self-locking space of a seat frame, which is a lifting frame; a seat frame support; the lower end of the rear rotating rod is provided with a guide groove; the rear transmission rod is rotationally connected with the lifting frame through a first rivet, and the upper end of the rear transmission rod is rotationally connected with the middle part of the rear rotating rod through a second rivet; the rear limit nail is fixedly connected with the lifting frame and is suitable for supporting the rear transmission rod; the locking rod, the locking rod upper end forms the rotation with the lift frame through the third rivet and is connected, the locking rod lower extreme sets up the guide pillar, the guide pillar is suitable for doing the removal in the guide slot, and the locking rod uses the third rivet as the axle center, does the rotation in locking the station, the locking rod is suitable for in its locking station, through the guide pillar butt in the back bull stick guide slot bottom to restriction seat frame support piece lifting.
Description
Technical Field
The utility model relates to an electric sofa support suitable for lifting a seat frame self-locking space.
Background
The electric deck chair sofa is an electrified sofa capable of automatically lying, the surface of the sofa is generally covered by high-grade leather, the middle of the sofa is filled by high-grade sponge, the main structure of the sofa is supported by a telescopic deck chair iron frame, and the sofa has fashionable style and attractive appearance and is widely applied to places such as families, companies and the like.
The traditional electric sofa support comprises a seat frame support frame, a foot support 99, a backrest support, a lifting frame 910 and a set of link mechanisms, wherein the seat frame support frame is arranged on the lifting frame 910 through the link mechanisms, the foot support 99 and the backrest support are also respectively connected with the link mechanisms, the forward leaning or backward unfolding of the backrest is adjusted through different stations where the seat frame support frame is located, and the stretching and shrinking of the foot support are adjusted.
The traditional electric sofa support can be divided into a standing-assisting posture (the lifting frame 910 drives the lifting frame to lift and enables the seat frame support to keep forward leaning, the foot supports to contract and the backrest to incline forward) as shown in fig. 1, an initial posture (the lifting frame 910 descends to be in a home position, the seat frame support is normally placed on the lifting frame 910, the foot supports to contract and the backrest to incline forward) as shown in fig. 2, a TV posture (suitable for watching TV, at the moment, the foot supports are unfolded) as shown in fig. 3, and a leisure posture (the backrest is unfolded backwards, and the foot supports are continuously kept to be unfolded) as shown in fig. 4 according to different positions of the seat frame support, the foot supports and the backrest adjusting pipes;
each posture adjustment of the whole electric sofa support is realized by driving the seat frame support frame to move back and forth through the linear motor and driving the foot support 99 and the backrest support to move by matching with the connecting rod mechanism; as shown in fig. 5, the seat frame support 91 is connected to the upper end of the rear rotating rod 92, the lower end of the rear rotating rod 92 is connected to the rear driving rod, the rear driving rod 93 is rotatably connected to the lifting frame 910, the lower end of the rear driving rod 93 is connected to the middle rod 96, the middle rod 96 is connected to the front driving rod 97, the front driving rod 97 is connected to the lifting frame 910, the front driving rod 97 is connected to the front rotating rod 98, the front rotating rod 98 is connected to the connected seat frame support 91, and the whole seat frame support 91 is mounted on the lifting frame 910 through a multi-link connection mechanism formed by the rear rotating rod 92, the rear driving rod 93, the middle rod 96, the front driving rod 97 and the front rotating.
The conventional electric sofa support has a problem that the seat frame support is locked only in the initial posture and the standing-assistant posture, as shown in fig. 1 to 4, an L-shaped support 95 is arranged between the backrest installation member and the lifting frame 910, a limit pin 94 is arranged at the rear end of the seat frame support 91, when the seat frame support 91 moves back and forth to reach the initial posture, the limit pin 94 just hooks the L-shaped support 95, and after hooking, the whole seat frame support can be self-locked (the self-locking means that the whole seat frame support 91 cannot be lifted upwards and the foot rest support 99 cannot be extended), after the seat frame support is self-locked, the linear motor lifts the lifting frame 910 through the lifting mechanism, so as to drive the seat frame support to be adjusted to the standing-assistant posture, therefore, the self-locking mode of hooking the L-shaped support 95 through the limit pin 94 arranged on the seat frame support 91 in the prior art can only be realized in the initial posture, Carry out the auto-lock when helping the posture of standing, when the seat frame support frame removes TV mode and leisure mode, as shown in fig. 3 fig. 4, spacing pin 94 leaves L shape support piece 95, at this moment, if the seat frame support frame receives ascending external force, for example upwards external force lifting foot rest support 99 or press the back hard, the seat frame support frame forms the vacancy of a lifting upset, the people who lies on the sofa can feel afraid, because the removal of seat frame support frame is not controlled by linear electric motor this moment, there is hidden danger in the security.
In conclusion, the self-locking mechanism on the conventional electric sofa support can only enable the electric sofa support to lock the seat frame support to lift in the standing-assisting posture and the initial posture, and cannot limit the seat frame support to lift in the TV mode, as long as the seat frame support leaves the initial posture, a gap is formed between the limit pin 94 and the L-shaped support 95, and the seat frame support can be lifted in the gap until the TV mode is operated, and the gap is fixed, so that the problem that the seat frame support cannot be locked to release and displace when a backrest is pressed by external force or a foot support is lifted by the external force by a user in the TV mode state is caused, and the safety of the electric sofa is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the electric sofa support suitable for lifting the seat frame self-locking space is provided, and the problem that the seat frame supporting frame is easy to loose and displace due to the fact that a user is subjected to external force under the TV mode because the seat frame supporting frame can only be locked in the standing-assistant mode and the normal mode and cannot be locked in the TV mode in the past is solved.
The utility model provides a technical scheme that its technical problem adopted is: an electric sofa support suitable for lifting a self-locking space of a seat frame comprises
A lifting frame;
a seat frame support which moves back and forth relative to the lifting frame;
the upper end of the rear rotating rod is rotatably connected with the seat frame supporting piece, and the lower end of the rear rotating rod is provided with a guide groove;
the rear transmission rod is rotationally connected with the lifting frame through a first rivet, and the upper end of the rear transmission rod is rotationally connected with the middle part of the rear rotating rod through a second rivet;
the rear limit nail is fixedly connected with the lifting frame and is suitable for supporting the rear transmission rod;
the locking rod, the locking rod upper end forms the rotation with the lift frame through the third rivet and is connected, the locking rod lower extreme sets up the guide pillar, the guide pillar is suitable for doing the removal in the guide slot, and the locking rod uses the third rivet as the axle center, does the rotation in locking the station, the locking rod is suitable for in its locking station, through the guide pillar butt in the back bull stick guide slot bottom to restriction seat frame support piece lifting.
Furthermore, when the seat frame supporting piece is positioned on the front side of the lifting frame, the rear transmission rod is placed on the rear limiting nail, the second rivet and the third rivet are positioned on the same rotating axial lead, and the guide pillar of the lock rod is abutted against the bottom of the guide groove of the rear rotating rod, so that a self-locking triangular structure is formed among the first rivet, the third rivet and the guide pillar, and at the moment, an initial locking station of the lock rod is formed;
the seat frame supporting piece moves backwards to drive the rear rotating rod and the lock rod to rotate around the rotating axis, and when three points and one line are reached among the first rivet, the third rivet and the guide pillar, a final locking station of the lock rod is formed;
between the initial locking station and the final locking station, the lock rod limits the lifting of the rear rotating rod, and further limits the lifting of the seat frame supporting piece.
Furthermore, the seat frame support device further comprises a tension spring, wherein the tension spring is connected with the seat frame support piece and used for tensioning the seat frame support piece downwards.
Further, the electric sofa support comprises a station-assisting station, an initial station, a TV station and a leisure station;
when the seat frame supporting piece is positioned at the station assisting station, the initial station and the TV station, the seat frame supporting piece is also positioned between the initial locking station and the final locking station.
The utility model has the advantages that:
the utility model discloses an electronic sofa support and working method thereof provides a brand-new auto-lock structure and restricts seat frame support piece and does the lifting at helping station, initial station, TV station, has promoted the auto-lock space of electronic sofa support at the seat frame, promotes the security.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a conventional power sofa support in a standing-assist position;
FIG. 2 is a schematic view of a conventional power sofa support in an initial position;
FIG. 3 is a schematic view of a conventional power sofa support in a TV position;
FIG. 4 is a schematic view of a conventional power sofa support in a resting position;
FIG. 5 is a diagram of the connection between the seat frame support, the linkage mechanism, the backrest support, the footrest support and the lifting frame of the conventional electric sofa support;
91, a seat frame support piece, 92, a rear rotating rod, 93, a rear transmission rod, 94, a limit pin, 95, an L-shaped support piece, 96, a middle rod, 97, a front transmission rod, 98, a front rotating rod, 99, a foot rest bracket, 910 and a lifting frame;
fig. 6 is a schematic view of the electric sofa support of the present invention in the standing-assistant posture;
FIG. 7 is a view of the rear pivot rod, the rear drive rod and the lock rod when the sofa support is in the standing assist position;
fig. 8 is a schematic view of the electric sofa support of the present invention in an initial posture;
FIG. 9 is a view of the rear pivot rod, the rear drive rod and the lock rod in the initial position of the sofa support;
fig. 10 is a schematic view of the electric sofa support of the present invention in a TV position;
FIG. 11 is a block diagram of the rear pivot rod, rear drive rod and locking rod of the power sofa support in the TV position;
fig. 12 is a schematic view of the electric sofa support of the present invention in a leisure posture;
FIG. 13 is a view of the rear pivot rod, rear drive link and locking rod of the sofa support in the resting position;
the device comprises a lifting frame 1, a lifting frame 2, a rear rotating rod 3, a rear transmission rod 4, a lock rod 41, a guide pillar 51, a first rivet 52, a second rivet 53, a third rivet 6, a seat frame support 7 and a rear limiting nail.
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.
Example one
An electric sofa support suitable for lifting a self-locking space of a seat frame comprises a lifting frame 1; the lifting frame 1 is driven by a linear motor to do lifting motion;
a seat frame support 6 which moves forward and backward relative to the lifting frame 1; the seat frame supporting piece 6 is driven by a linear motor, the linear motor drives the seat frame supporting piece 6 to move back and forth on the lifting frame 1 through a driving frame, and the back and forth movement of the seat frame supporting piece 6 is the prior art and is introduced in the patent documents of the prior application;
the upper end of the rear rotating rod 2 is rotationally connected with the seat frame supporting piece 6, and the lower end of the rear rotating rod is provided with a guide groove; the rear transmission rod 3 is rotatably connected with the lifting frame 1 through a first rivet 51, and the upper end of the rear transmission rod 3 is rotatably connected with the middle part of the rear rotating rod 2 through a second rivet 52; the rear limit nail 7 is fixedly connected with the lifting frame 1 and is suitable for supporting the rear transmission rod 3;
the upper end of the lock rod 4 is rotatably connected with the lifting frame 1 through a third rivet 53, the lower end of the lock rod 4 is provided with a guide pillar 41, the guide pillar 41 is suitable for moving in the guide groove, the lock rod 4 rotates in a locking station by taking the third rivet 53 (and the second rivet 52) as an axis, and the lock rod 4 is suitable for abutting against the bottom of the guide groove of the rear rotating rod 2 through the guide pillar 41 in the locking station so as to limit the lifting of the seat frame supporting piece 6.
The left seat frame support piece 6 and the right seat frame support piece 6 form a seat frame support frame; each seat frame support 6 is connected to the lifting frame 1 by a set of connecting mechanism, which is the same principle as the connecting mechanism described in the background art.
Specifically, in the electric sofa support of the present invention, when the seat frame supporting member 6 is located at the front side of the lifting frame 1, the rear transmission rod rests on the rear limit pin 7, and the second rivet 52 and the third rivet 53 are located at the same rotation axis, and the guide pillar 41 of the lock rod 4 abuts against the bottom of the guide groove of the rear rotating rod 2, so that a self-locking triangular structure is formed among the first rivet 51, the third rivet 53 (the second rivet 52) and the guide pillar 41, and at this time, an initial locking station of the lock rod 4 is formed; as shown in fig. 6-9, namely the standing-assistant posture and the initial posture corresponding to the electric sofa support.
With the posture adjustment of the electric sofa support, the seat frame supporting piece 6 moves backwards to drive the rear rotating rod 2 and the lock rod 4 to rotate around the rotating axis, and when three points and one line are reached among the first rivet 51, the third rivet 53 (the second rivet 52) and the guide pillar 41, a final locking station of the lock rod 4 is formed; as shown in fig. 10 and 11, corresponding to the TV position of the electric sofa support;
between the initial locking station and the final locking station, the lock lever 4 restricts the rear rotating lever 2 from lifting, thereby restricting the seat frame support 6 from lifting. That is, the lock lever 4 can restrict the seat frame from being lifted up by the lock lever 4 in the standing assist posture, the initial posture, and the TV posture of the electric sofa support.
The whole locking station area of the lock rod 4 is a sector area of 90 degrees, in the sector area, the rear rotating rod 2 and the lock rod 4 rotate around the same axial lead, namely the second rivet 52 and the third rivet 53, and under the condition that the same axial lead is ensured, the guide pillar 41 can be tightly pressed against the bottom of the guide groove of the rear rotating rod 2 so as to limit the position of the rear rotating rod 2 and finally limit the lifting of the seat frame supporting piece 6 in the locking station area.
As the linear motor continues to drive the seat frame support 6 to move, the electric sofa support becomes a leisure posture, as shown in fig. 12 and fig. 13, at this time, the first rivet 51, the third rivet 53 (the second rivet 52) and the guide post 41 are not positioned at three points and one line, the third rivet 53 and the second rivet 52 are not positioned at the same axial lead, and the guide post 41 of the lock rod 4 leaves the bottom of the guide slot of the rear rotating rod 2, so that a moving gap exists in the rear rotating rod 2, the seat frame support 6 is not self-locked at this time, the seat frame support 6 can be lifted under stress, and in order to limit the seat frame support 6 to be lifted freely under stress, therefore, a tension spring is provided, and is connected with the seat frame support 6 to tension the seat frame support 6 downwards. The electric sofa support can be stably tightened on the lifting frame 1 in a leisure posture.
In the electric sofa support of the utility model, the linear motor drives the seat frame support frame to move back and forth through the driving frame, and the linear motor is contracted from the longest to the shortest, so as to sequentially drive the seat frame support piece 6 to move from the standing-assisting posture, the initial posture, the TV posture to the final leisure posture; the novel self-locking mechanism is provided to limit the seat frame supporting piece 6 from a standing-assisting posture, an initial posture and a TV posture, and the seat frame supporting piece 6 is lifted in the three postures, so that the safety of the electric sofa support is improved;
the utility model discloses an electronic sofa support, locking lever 4 lock the interval of station, just in time correspond between seat frame support piece 6's three gesture, and seat frame support piece 6 optional position in three gesture interval all can restrict seat frame support piece 6 lifting through locking lever 4, compares electronic sofa support in the past, has promoted the auto-lock space of seat frame.
Example two
An electric sofa support comprises a station-assisting station, an initial station, a TV station and a leisure station; the four stations correspond to four postures of the sofa support in the using process, namely a standing-assisting posture, an initial posture, a TV posture and a leisure posture;
the working method of the electric sofa support comprises the steps that a linear motor is adopted to drive a driving frame to turn over, so that a seat frame supporting frame is driven to move back and forth, the linear motor is contracted from the longest position to the shortest position, and a seat frame supporting piece 6 can be driven to move from a standing-assisting posture, an initial posture, a TV posture to a final leisure posture in sequence;
when the seat frame supporting piece 6 moves to the station-assisting station, the initial station and the TV station, the seat frame supporting piece 6 is lifted and locked, and the lifting self-locking of the seat frame of the sofa support is realized at more stations by expanding the self-locking space of the electric sofa support, so that the safety of the sofa support is improved.
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 (4)
1. An electric sofa support suitable for lifting a self-locking space of a seat frame is characterized by comprising
A lifting frame;
a seat frame support which moves back and forth relative to the lifting frame;
the upper end of the rear rotating rod is rotatably connected with the seat frame supporting piece, and the lower end of the rear rotating rod is provided with a guide groove;
the rear transmission rod is rotationally connected with the lifting frame through a first rivet, and the upper end of the rear transmission rod is rotationally connected with the middle part of the rear rotating rod through a second rivet;
the rear limit nail is fixedly connected with the lifting frame and is suitable for supporting the rear transmission rod;
the locking rod, the locking rod upper end forms the rotation with the lift frame through the third rivet and is connected, the locking rod lower extreme sets up the guide pillar, the guide pillar is suitable for doing the removal in the guide slot, and the locking rod uses the third rivet as the axle center, does the rotation in locking the station, the locking rod is suitable for in its locking station, through the guide pillar butt in the back bull stick guide slot bottom to restriction seat frame support piece lifting.
2. The electric sofa support suitable for lifting the self-locking space of the seat frame as claimed in claim 1, wherein when the seat frame supporting member is located at the front side of the lifting frame, the rear driving rod rests on the rear limiting nail, and the second rivet and the third rivet are located at the same rotating axis line, and the guide pillar of the lock rod abuts against the bottom of the guide groove of the rear rotating rod, so that a self-locking triangular structure is formed among the first rivet, the third rivet and the guide pillar, and at this time, an initial locking station of the lock rod is formed;
the seat frame supporting piece moves backwards to drive the rear rotating rod and the lock rod to rotate around the rotating axis, and when three points and one line are reached among the first rivet, the third rivet and the guide pillar, a final locking station of the lock rod is formed;
between the initial locking station and the final locking station, the lock rod limits the lifting of the rear rotating rod, and further limits the lifting of the seat frame supporting piece.
3. The electrical sofa support for elevating the self-locking space of seat frame as claimed in claim 2, further comprising a tension spring connected to the seat frame supporting member for pulling the seat frame supporting member downward.
4. The electric sofa support suitable for lifting the self-locking space of the seat frame as claimed in claim 2, wherein the electric sofa support comprises a standing-assistant station, an initial station, a TV station and a leisure station;
when the seat frame supporting piece is positioned at the station assisting station, the initial station and the TV station, the seat frame supporting piece is also positioned between the initial locking station and the final locking station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451035.8U CN211212233U (en) | 2019-12-30 | 2019-12-30 | Electric sofa support suitable for lifting seat frame self-locking space |
| US16/993,467 US11109681B2 (en) | 2019-12-30 | 2020-08-14 | Self-locking mechanism and lift chair therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922451035.8U CN211212233U (en) | 2019-12-30 | 2019-12-30 | Electric sofa support suitable for lifting seat frame self-locking space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211212233U true CN211212233U (en) | 2020-08-11 |
Family
ID=71929952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922451035.8U Expired - Fee Related CN211212233U (en) | 2019-12-30 | 2019-12-30 | Electric sofa support suitable for lifting seat frame self-locking space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211212233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000394A (en) * | 2019-12-30 | 2020-04-14 | 常州泽辉机械有限公司 | Electric sofa support suitable for lifting seat frame self-locking space and working method thereof |
-
2019
- 2019-12-30 CN CN201922451035.8U patent/CN211212233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000394A (en) * | 2019-12-30 | 2020-04-14 | 常州泽辉机械有限公司 | Electric sofa support suitable for lifting seat frame self-locking space and working method thereof |
| CN111000394B (en) * | 2019-12-30 | 2024-12-03 | 常州泽辉机械有限公司 | Electric sofa bracket suitable for lifting seat frame self-locking space and working method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20201230 |