CN221129375U - Light-duty electrically driven sofa mechanical stretching device - Google Patents
Light-duty electrically driven sofa mechanical stretching device Download PDFInfo
- Publication number
- CN221129375U CN221129375U CN202322753917.6U CN202322753917U CN221129375U CN 221129375 U CN221129375 U CN 221129375U CN 202322753917 U CN202322753917 U CN 202322753917U CN 221129375 U CN221129375 U CN 221129375U
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a light electrically-driven sofa mechanical stretching device. The mechanical stretching device of the light electrically-driven sofa comprises a base, symmetrical stretching components are arranged on two sides of the base, an electric driving mechanism for driving the stretching components to stretch or retract is arranged on the base, the electric driving mechanism comprises a push rod motor hinged with the base, a driving rod is hinged to a telescopic rod of the push rod motor, a first driving connecting rod is arranged at two ends of the driving rod, one end of the first driving connecting rod is pivoted with the base, a second driving connecting rod is pivoted with one end of the second driving connecting rod, a third driving connecting rod connected with the stretching components is pivoted with the other end of the second driving connecting rod, a first limiting pin is arranged on one side of the second driving connecting rod adjacent to the first driving connecting rod, and a first limiting surface matched with the first limiting pin is formed in the first driving connecting rod. The utility model solves the problem of inconvenient operation in the prior art.
Description
Technical Field
The utility model relates to the field of household manufacturing, in particular to a light-duty electrically-driven sofa mechanical stretching device.
Background
As shown in fig. 1, the mechanical stretching assembly of the sofa is a mechanical stretching assembly which is matched with the hands and the back of a user when being unfolded, namely the hands push the armrests backwards, the back is used for abutting against the backrest, and the leg mechanism and the backrest mechanism are sequentially opened; the stretching assembly is matched with the hands and the legs of a user when being folded, namely, the hands pull the armrests forwards, and the lower legs are bent backwards to retract the backrest mechanism and the leg mechanism in sequence. And is relatively inconvenient to operate.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims to provide a light electric driven sofa mechanical stretching device which is convenient to operate.
In order to achieve the above purpose, the mechanical stretching device of the light electrically driven sofa adopts the following technical scheme:
The utility model provides a light-duty electric drive sofa mechanical stretching device, includes the base, and the base both sides are provided with symmetrical extension subassembly, the base is provided with the electric drive mechanism who drives extension subassembly to expand or draw in, electric drive mechanism include with the articulated push rod motor of base, push rod motor's telescopic link articulates there is the actuating lever, the both ends of actuating lever are provided with drive connecting rod one, drive connecting rod one end and base pin joint, the other end pin joint has drive connecting rod two, drive connecting rod one end and drive connecting rod one pin joint, the other end pin joint has the drive connecting rod three of being connected with extension subassembly, drive connecting rod one side next to drive connecting rod one is provided with first spacer pin, drive connecting rod one seted up with first spacer pin complex first spacing face.
Preferably, the base comprises two outer mounting plates, a front bottom rod and a rear bottom rod are arranged between the two outer mounting plates, and inner mounting plates for mounting the extension assembly are arranged at the tops of the front bottom rod and the rear bottom rod.
Preferably, the stretching assembly comprises a leg mechanism, a seat mechanism and a backrest mechanism, the seat mechanism comprises a seat frame mounting plate arranged above an inner mounting plate, a driving connecting rod is pivoted on the front side of the seat frame mounting plate, a rear supporting rod is pivoted on the rear side of the seat frame mounting plate, the top end of the rear supporting rod is pivoted with the seat frame mounting plate, a limit rod is pivoted at the bottom end of the rear supporting rod, the rear end of the limit rod is pivoted with the rear supporting rod, the front end of the limit rod is pivoted on the front side of the inner mounting plate, a lifting rod is pivoted at the middle part of the limit rod, the front end of the lifting rod is pivoted with the driving connecting rod, the rear end of the lifting rod is pivoted on the rear side of the inner mounting plate, the leg mechanism comprises a first footrest and a second footrest, the rear end of the first footrest is pivoted with the front end of the second footrest, the rear part of the first footrest is pivoted with the leg connecting rod, the rear end of the leg connecting rod I is pivoted with the leg connecting rod II, the rear end of the leg connecting rod II is pivoted with the leg connecting rod III, the rear end of the leg connecting rod III is pivoted with the driving connecting rod III, the middle part of the foot rest II is pivoted with the leg connecting rod IV, the front end of the leg connecting rod IV is pivoted with the front part of the leg connecting rod I, the rear end of the foot rest II is pivoted with the leg connecting rod V, the middle part of the leg connecting rod V is pivoted with the middle part of the leg connecting rod II, the rear end of the leg connecting rod V is pivoted with the leg connecting rod VI, the middle part of the leg connecting rod VI is pivoted with the middle part of the leg connecting rod III, the rear end of the leg connecting rod VI is pivoted with the front end of the seat frame mounting plate, the backrest mounting plate is pivoted with the backrest supporting rod, and the bottom end of the backrest supporting rod is pivoted with the rear end of the inner mounting plate.
Preferably, the front part of the limiting rod is provided with a second limiting pin, and the inner mounting plate is provided with a limiting groove for sliding of the second limiting pin.
Preferably, the front end of the inner mounting plate is provided with a third limiting pin, and the lifting rod is provided with a second limiting surface matched with the third limiting pin.
Preferably, a fourth limiting pin is arranged at the rear side of the seat frame mounting plate, and a third limiting surface matched with the fourth limiting pin is arranged on the rear supporting rod.
Preferably, the backrest mounting plate is provided with a fifth limiting pin, the seat frame mounting plate is provided with a fourth limiting surface matched with the fifth limiting pin, and the backrest support rod is provided with a fifth limiting surface matched with the fifth limiting pin.
Preferably, the push rod motor is hinged to the bottom surface of the rear bottom rod, and the hinge shaft of the telescopic rod and the driving rod of the push rod motor is not higher than the top surface of the rear bottom rod.
Compared with the prior art, the utility model has the following advantages:
1. the driving connecting rod I is driven to rotate by the push rod motor, the driving connecting rod I drives the driving connecting rod II to rotate, and the driving connecting rod II drives the driving connecting rod III to drive the stretching assembly to be unfolded or folded, so that the sitting posture, the TV posture and the lying posture can be conveniently switched.
2. When the extension assembly is in a sitting posture state, the first limiting pin is abutted against the first limiting surface, so that the second driving connecting rod can be prevented from rotating, the leg mechanism is prevented from being in a loose state, and therefore the product quality can be improved.
3. The push rod motor is hinged to the bottom surface of the rear bottom rod, and the hinge shaft of the telescopic rod and the driving rod of the push rod motor is not higher than the top surface of the rear bottom rod, so that the space between the push rod motor and the seat frame mounting plate can be increased, a thickening space is provided for a soft bag of the cushion, and the comfort level of a sofa can be improved.
Drawings
FIG. 1 is a prior art mechanical stretcher assembly of a sofa;
FIG. 2 is a schematic view of the mechanical stretcher of the lightweight electrically driven sofa of the present utility model;
FIG. 3 is a schematic view of the structure of the electric drive mechanism of the present utility model;
FIG. 4 is a schematic medial side view of the present utility model in a seated position with the extension assembly;
FIG. 5 is a schematic lateral view of the present utility model in a seated position with the extension assembly;
FIG. 6 is a medial side schematic view of the extension assembly TV pose of the present utility model;
FIG. 7 is a schematic lateral view of the extension assembly TV set of the present utility model;
FIG. 8 is a medial side schematic view of the present utility model in a recumbent position of the extension assembly;
FIG. 9 is a lateral side schematic view of the present utility model in a reclined position of the extension assembly;
FIG. 10 is a schematic view of the structure of the base of the present utility model;
Fig. 11 is a schematic view of the installation of the push rod motor of the present utility model.
The seat comprises a base, an outer mounting plate, a front bottom rod, a rear bottom rod, an inner mounting plate, a 141 limiting groove, a 142 third limiting pin, a 2 stretching assembly, a 21 leg mechanism, a 211 foot rest I, a 212 foot rest II, a 213 leg link I, a 214 leg link II, a 215 leg link III, a 216 leg link IV, a 217 leg link IV, a 218 leg link VI, a 22 seat mechanism, a 221 seat frame mounting plate, a 2211 fourth limiting pin, a 2212 fourth limiting surface, a 222 rear supporting rod, a 2221 third limiting surface, a 223 limiting rod, a 2231 second limiting pin, a 224 lifting rod, a 2241 second limiting surface, a 23 backrest mechanism, a 231 backrest mounting plate, a 2311 fifth limiting pin, a 232 backrest supporting rod, a 2321 fifth limiting surface, a 3 electric driving mechanism, a 31 push rod motor, a 32 driving rod, a 33 driving link I, a 331 first limiting surface, a 34 driving link II, a 341 first limiting pin and a 35 driving link III.
Detailed Description
The present utility model is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the utility model and not limiting of its scope, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the utility model, fall within the scope of the utility model as defined in the appended claims.
As shown in fig. 2-11, a mechanical stretching device of a light electrically driven sofa comprises a base 1, symmetrical stretching components 2 are arranged on the left side and the right side of the base, the base comprises two symmetrical outer mounting plates 11, a front bottom rod 12 and a rear bottom rod 13 are welded between the two outer mounting plates, two sides of the top of the front bottom rod and the rear bottom rod are fixedly connected with inner mounting plates 14 for mounting the stretching components, the stretching components comprise leg mechanisms 21, seat mechanisms 22 and backrest mechanisms 23, the seat mechanisms comprise seat frame mounting plates 221 arranged above the inner mounting plates, rear side of the seat frame mounting plates are pivoted with rear supporting rods 222, the top ends of the rear supporting rods are pivoted with the seat frame mounting plates, the rear side of the seat frame mounting plates is fixedly connected with fourth limiting pins 2211, the rear supporting rod is provided with a third limit surface 2221 matched with a fourth limit pin, the bottom end of the rear supporting rod is pivoted with a limit rod 223, the rear end of the limit rod is pivoted with the rear supporting rod, the front end of the limit rod is pivoted with the front side of the inner mounting plate, the front part of the limit rod is fixedly connected with a second limit pin 2231, the inner mounting plate is provided with a limit groove 141 for sliding the second limit pin, the middle part of the limit rod is pivoted with a lifting rod 224, the rear end of the lifting rod is pivoted with the rear side of the inner mounting plate, the front end of the inner mounting plate is fixedly connected with a third limit pin 142, the lifting rod is provided with a second limit surface 2241 matched with the third limit pin, the leg mechanism comprises a first footrest 211 and a second footrest 212, the rear end of the first footrest is pivoted with the front end of the second footrest, the rear end of the first footrest is pivoted with a first leg connecting rod 213, the rear end of the first leg connecting rod is pivoted with a second leg connecting rod 214, the rear end of the second leg connecting rod is pivoted with a third leg connecting rod 215, the middle part of the second footrest is pivoted with a fourth leg connecting rod 216, the front end of the fourth leg connecting rod is pivoted with the front part of the first leg connecting rod, the rear end of the second footrest is pivoted with a fifth leg connecting rod 217, the middle part of the fifth leg connecting rod is pivoted with the middle part of the second leg connecting rod, the rear end of the fifth leg connecting rod is pivoted with a sixth leg connecting rod 218, the middle part of the sixth leg connecting rod is pivoted with the middle part of the third leg connecting rod, the rear end of the sixth leg connecting rod is pivoted with the front end of the seat frame mounting plate, the backrest mechanism comprises a backrest mounting plate 231 pivoted at the rear end of a seat frame mounting plate, the backrest mounting plate is pivoted with a backrest supporting rod 232, the bottom end of the backrest supporting rod is pivoted at the rear end of an inner mounting plate, the backrest mounting plate is fixedly connected with a fifth limiting pin 2311, the seat frame mounting plate is provided with a fourth limiting surface 2212 matched with the fifth limiting pin, the backrest supporting rod is provided with a fifth limiting surface 2321 matched with the fifth limiting pin, the seat is provided with an electric driving mechanism 3 for driving the stretching assembly to be stretched or folded, the electric driving mechanism comprises a push rod motor 31, the push rod motor is hinged at the bottom surface of a rear bottom rod, a telescopic rod of the push rod motor is hinged with a driving rod 32, the hinge shaft of the telescopic rod of the push rod motor and the driving rod is not higher than the top surface of the rear bottom rod, so that the space between the push rod motor and the seat frame mounting plate can be increased, a thickening space is provided for the soft package of the cushion, the comfort of the sofa can be improved, the two ends of the driving rod are fixedly connected with the driving connecting rod I33, one end of the driving connecting rod I is pivoted with the front end of the inner mounting plate, the other end of the driving connecting rod I is pivoted with the driving connecting rod II 34, the driving connecting rod II is L-shaped, one end of the driving connecting rod II is pivoted with the driving connecting rod I, the other end of the driving connecting rod III is pivoted with the driving connecting rod III, the driving connecting rod III is S-shaped, the bottom end of the driving connecting rod III is pivoted with the driving connecting rod II, the middle lower part of the driving connecting rod III is pivoted with the rear end of the leg connecting rod III, the middle upper part of the driving connecting rod III is pivoted with the front end of the lifting rod, the top end of the third driving connecting rod is pivoted to the front side of the seat frame mounting plate, a first limiting pin 341 is arranged on one side, close to the first driving connecting rod, of the second driving connecting rod, and a first limiting surface 331 matched with the first limiting pin is formed on the first driving connecting rod.
The specific working process and principle of the utility model are as follows:
When sitting, the extension subassembly is in the state of drawing in, and first spacer pin contradicts first spacing face, locks drive connecting rod two, guarantees that shank mechanism is in the state of tightening, and the second spacer pin is in the bottom of spacing groove, improves the holding power of back bracing piece, and the third spacer pin contradicts the second spacing face, improves the holding power of drive connecting rod three, and the fifth spacer pin contradicts the fourth spacing face, guarantees the stability of seat frame mounting panel.
When the sitting posture is switched into the TV posture, a push rod motor is started, a telescopic rod of the push rod motor stretches out, a driving rod drives a driving connecting rod I to rotate anticlockwise around a pivot shaft of the driving connecting rod I and an inner mounting plate, a first limiting pin is separated from a first limiting surface, one end of a driving connecting rod II rotates along with the driving connecting rod I, the other end drives a driving connecting rod III to rotate around a pivot shaft of the driving connecting rod I, at the moment, a middle lower part of the driving connecting rod III drives a leg mechanism to be unfolded, the top of the driving connecting rod III supports the front side of a seat mounting plate, a seat frame mounting plate drives a backrest mechanism and a rear supporting rod to rotate, a fourth limiting pin abuts against a third limiting surface, the supporting force of the rear supporting rod is improved, a fifth limiting pin abuts against a fifth limiting surface, and the backrest mechanism is prevented from being unfolded.
When the TV gesture is switched to the lying gesture, the push rod motor is started again, the telescopic link of the push rod motor continues to extend, the first driving connecting rod rotates anticlockwise to the limit position, one end of the second driving connecting rod rotates along with the first driving connecting rod, the other end provides upward supporting force for the third driving connecting rod, the third driving connecting rod drives the seat frame mounting plate and the lifting rod to tilt upwards, the second limiting surface is separated from the third limiting pin, the second limiting pin slides to the top of the limiting groove, the upward tilting angle of the seat frame mounting plate is limited, the seat frame mounting plate drives the backrest mounting plate to rotate around the pivot shaft of the seat frame mounting plate and the backrest supporting rod in the tilting process, the fifth limiting pin is separated from the fifth limiting surface, and the backrest mechanism is opened.
According to the utility model, automatic control is realized through electric drive, and the requirement of a user on convenient operation is met.
Claims (8)
1. The utility model provides a light-duty electric drive sofa mechanical stretching device, includes the base, and the base both sides are provided with symmetrical extension subassembly, its characterized in that: the base is provided with an electric driving mechanism for driving the extension assembly to be unfolded or folded, the electric driving mechanism comprises a push rod motor hinged with the base, a driving rod is hinged to a telescopic rod of the push rod motor, a first driving connecting rod is arranged at two ends of the driving rod, one end of the first driving connecting rod is pivoted with the base, a second driving connecting rod is pivoted with the other end of the first driving connecting rod, one end of the second driving connecting rod is pivoted with the first driving connecting rod, a third driving connecting rod connected with the extension assembly is pivoted with the other end of the second driving connecting rod, a first limiting pin is arranged on one side of the second driving connecting rod adjacent to the first driving connecting rod, and a first limiting surface matched with the first limiting pin is formed in the first driving connecting rod.
2. The lightweight, electrically driven sofa mechanical stretcher of claim 1, wherein: the base comprises two outer mounting plates, a front bottom rod and a rear bottom rod are arranged between the two outer mounting plates, and inner mounting plates for mounting the extension assembly are arranged at the tops of the front bottom rod and the rear bottom rod.
3. The lightweight, electrically driven sofa mechanical stretcher of claim 2, wherein: the extension assembly comprises a leg mechanism, a seat mechanism and a backrest mechanism, wherein the seat mechanism comprises a seat frame mounting plate arranged above an inner mounting plate, a driving connecting rod III is pivoted on the front side of the seat frame mounting plate, a rear supporting rod is pivoted on the rear side of the seat frame mounting plate, the top end of the rear supporting rod is pivoted with the seat frame mounting plate, a limiting rod is pivoted on the bottom end of the rear supporting rod, the rear end of the limiting rod is pivoted with the rear supporting rod, the front end of the limiting rod is pivoted on the front side of the inner mounting plate, the middle part of the limiting rod is pivoted with a lifting rod, the front end of the lifting rod is pivoted with a driving connecting rod III, the rear end of the lifting rod is pivoted on the rear side of the inner mounting plate, the leg mechanism comprises a foot rest I and a foot rest II, the rear end of the foot rest I is pivoted with the front end of the foot rest II, the rear end of the foot rest II is pivoted with the leg connecting rod II, the rear end of the leg II is pivoted with the leg connecting rod III, the rear end of the rear connecting rod III is pivoted with the front end of the leg connecting rod III, the rear end of the foot rest II is pivoted with the front end of the front connecting rod II is pivoted with the front end of the rear mounting plate, the rear end of the foot rest II is pivoted with the rear connecting rod II is pivoted with the rear end of the rear mounting plate, the rear end of the foot rest II is pivoted with the rear end of the foot III is pivoted with the rear end of the rear connecting rod III.
4. A lightweight, electrically driven sofa mechanical stretcher according to claim 3, characterized in that: the front part of the limiting rod is provided with a second limiting pin, and the inner mounting plate is provided with a limiting groove for sliding of the second limiting pin.
5. A lightweight, electrically driven sofa mechanical stretcher according to claim 3, characterized in that: the front end of the inner mounting plate is provided with a third limiting pin, and the lifting rod is provided with a second limiting surface matched with the third limiting pin.
6. A lightweight, electrically driven sofa mechanical stretcher according to claim 3, characterized in that: the rear side of seat frame mounting panel is provided with fourth spacer pin, and the back bracing piece has seted up with fourth spacer pin complex third spacing face.
7. A lightweight, electrically driven sofa mechanical stretcher according to claim 3, characterized in that: the backrest mounting plate is provided with a fifth limiting pin, the seat frame mounting plate is provided with a fourth limiting surface matched with the fifth limiting pin, and the backrest support rod is provided with a fifth limiting surface matched with the fifth limiting pin.
8. The lightweight, electrically driven sofa mechanical stretcher of claim 2, wherein: the push rod motor is hinged to the bottom surface of the rear bottom rod, and the hinge shaft of the telescopic rod and the driving rod of the push rod motor is not higher than the top surface of the rear bottom rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322753917.6U CN221129375U (en) | 2023-10-13 | 2023-10-13 | Light-duty electrically driven sofa mechanical stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322753917.6U CN221129375U (en) | 2023-10-13 | 2023-10-13 | Light-duty electrically driven sofa mechanical stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221129375U true CN221129375U (en) | 2024-06-14 |
Family
ID=91389629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322753917.6U Active CN221129375U (en) | 2023-10-13 | 2023-10-13 | Light-duty electrically driven sofa mechanical stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221129375U (en) |
-
2023
- 2023-10-13 CN CN202322753917.6U patent/CN221129375U/en active Active
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