CN216316690U - Variable form sofa frame - Google Patents
Variable form sofa frame Download PDFInfo
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- CN216316690U CN216316690U CN202123175519.8U CN202123175519U CN216316690U CN 216316690 U CN216316690 U CN 216316690U CN 202123175519 U CN202123175519 U CN 202123175519U CN 216316690 U CN216316690 U CN 216316690U
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Abstract
The utility model belongs to the technical field of sofa frames, and particularly relates to a variable-form sofa frame. This variable form sofa frame includes: the front bottom frame, the rear bottom frame and the two side bottom frames; the two lifting mechanisms are respectively arranged on the corresponding side bottom frames; the mounting frame is supported on the two lifting mechanisms; the two posture adjusting mechanisms are respectively arranged on two sides of the mounting frame; the lifting mechanism comprises a fixing plate, a first connecting rod, a second connecting rod and a third connecting rod; the lower end of the fixed sheet is fixedly arranged on the side bottom frame, and the upper end of the fixed sheet is hinged with the rear end of the third connecting rod; the rear end of the first connecting rod is hinged with the lower end of the fixing plate, and the front end of the first connecting rod is hinged with the lower end of the second connecting rod; the middle part of the second connecting rod is hinged with the front end of the third connecting rod, and the upper end of the second connecting rod is fixedly connected with the mounting frame; the middle part of the third connecting rod is used for supporting the mounting frame, so that the stability of the sofa frame can be improved.
Description
Technical Field
The utility model belongs to the technical field of sofa frames, and particularly relates to a variable-form sofa frame.
Background
The sofa is used as common furniture and has wide application scenes, such as hotels, living rooms, families and the like.
With the pursuit of people for high-level life, the sofa with adjustable posture is more popular. However, since the sofa with adjustable posture can change various forms during the use process, higher requirements are put forward on the stability of the sofa.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a variable-form sofa frame to improve the stability of the sofa frame.
In order to solve the above technical problems, the present invention provides a variable form sofa frame, comprising: the front bottom frame, the rear bottom frame and the two side bottom frames; the two lifting mechanisms are respectively arranged on the corresponding side bottom frames; the mounting frame is supported on the two lifting mechanisms; the two posture adjusting mechanisms are respectively arranged on two sides of the mounting frame; the lifting mechanism comprises a fixing plate, a first connecting rod, a second connecting rod and a third connecting rod; the lower end of the fixed sheet is fixedly arranged on the side bottom frame, and the upper end of the fixed sheet is hinged with the rear end of the third connecting rod; the rear end of the first connecting rod is hinged with the lower end of the fixing plate, and the front end of the first connecting rod is hinged with the lower end of the second connecting rod; the middle part of the second connecting rod is hinged with the front end of the third connecting rod, and the upper end of the second connecting rod is fixedly connected with the mounting frame; the middle part of the third connecting rod is used for supporting the mounting frame.
Further, the outer side of the middle part of the first connecting rod is provided with a first supporting sheet supported on the corresponding side bottom frame.
Furthermore, the middle part of the third connecting rod is bent in a shape of a Chinese character 'ji', and the middle part of the third connecting rod protrudes upwards; and a second supporting sheet is arranged at the top end of the bending part and used for supporting the mounting frame.
Further, the mounting frame includes: the front cross rod and the rear cross rod are arranged in parallel and used for connecting the mounting side plates; the installation side plate is used for installing a corresponding posture adjusting mechanism; the front cross rod is fixedly connected with the upper end of the second connecting rod; the rear cross bar is supported on the second support sheet.
Furthermore, the end parts of the front bottom frame and the rear bottom frame extend out of the side bottom frame.
Further, the variable form sofa frame further comprises: and the fixed end of the driver is arranged on the rear bottom frame, and the driving end of the driver is connected with the posture adjusting mechanism.
Further, the posture adjustment mechanism comprises: the rotary connecting rod, the fourth connecting rod, the fifth mounting piece, the sixth connecting rod, the seventh connecting rod, the eighth connecting rod, the ninth connecting rod, the seat board mounting plate and the leg placing plate mounting plate; the middle parts of the rotating connecting rods of the two posture adjusting mechanisms are fixedly connected through a driving rotating rod; the middle part of the driving rotating rod is provided with a swing rod, and the lower end of the swing rod is hinged with the driving end of the driver; the upper end of the rotating connecting rod is hinged with the middle part of the mounting side plate, and the lower end of the rotating connecting rod is hinged with the front end of the fourth connecting rod; the middle part of the fifth mounting piece is fixedly connected with the rear end of the seat plate mounting plate, and the lower end of the fifth mounting piece is hinged with the rear end of the fourth connecting rod; the upper end of the seventh connecting rod is hinged with the front end of the seat plate mounting plate, the lower end of the seventh connecting rod is hinged with the lower end of the eighth connecting rod, and the rod body is hinged with the mounting side plate; the upper end of the sixth connecting rod is hinged with the front end of the mounting side plate, the lower end of the sixth connecting rod is hinged with the lower end of the ninth connecting rod, and the rod body of the eighth connecting rod is hinged with the rod body of the eighth connecting rod; the upper end of the eighth connecting rod is hinged with the upper end of the leg placing plate mounting plate; the upper end of the ninth connecting rod is hinged with the middle part of the leg placing plate mounting plate; the drive end of the driver contracts, the rotating connecting rod is driven to rotate backwards through the driving rotating rod, and the leg placing plate mounting plate is driven to expand through the matching of the fourth connecting rod, the fifth mounting piece, the sixth connecting rod, the seventh connecting rod, the eighth connecting rod, the ninth connecting rod and the seat plate mounting plate.
Further, the posture adjusting mechanism further comprises: the backrest mounting plate is connected with the V-shaped connecting rod; the upper end of the V-shaped connecting rod is hinged with the upper end of the eleventh connecting rod, the front end of the V-shaped connecting rod is hinged with the front end of the fifth mounting piece, and the lower end of the V-shaped connecting rod is hinged with the front end of the tenth connecting rod; the lower end of the eleventh connecting rod is hinged with the rear end of the mounting side plate; the rear end of the tenth connecting rod is hinged with the lower end of the backrest mounting plate; the front end of the backrest mounting plate is hinged with the upper end of the fifth mounting plate.
Furthermore, the inner side of the mounting side plate is provided with a limited point for preventing the rotating connecting rod from rotating forwards when the sofa frame is in a sitting position.
The variable-form sofa frame has the beneficial effects that the variable-form sofa frame is provided with the front bottom frame, the rear bottom frame and the two side bottom frames, the lower end of a fixing piece of the lifting mechanism is fixedly arranged on the side bottom frames, the upper end of the fixing piece is hinged with the rear end of a third connecting rod, the rear end of a first connecting rod is hinged with the lower end of the fixing piece, the front end of the first connecting rod is hinged with the lower end of a second connecting rod, the middle part of the second connecting rod is hinged with the front end of the third connecting rod, the upper end of the second connecting rod is fixedly connected with the mounting frame, and the middle part of the third connecting rod is used for supporting the mounting frame, so that the stability of the sofa frame is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 and 2 are perspective views of the variable form sofa frame of the present invention;
FIG. 3 is a cross-sectional view of the variable configuration sofa frame of the present invention;
fig. 4 is a schematic view of the lifting mechanism and the mounting frame of the variable-form sofa frame according to the present invention.
In the figure:
a front bottom frame 11, a rear bottom frame 12 and a side bottom frame 13;
the lifting mechanism 2, a fixing plate 21, a first connecting rod 22, a first supporting plate 221, a second connecting rod 23, a third connecting rod 24 and a second supporting plate 241;
the mounting frame 3, the mounting side plate 31, the limit point 311, the front cross bar 32 and the rear cross bar 33;
two posture adjusting mechanisms 4, a rotating link 41, a driving rotating rod 411, a swinging rod 412, a fourth link 42, a fifth mounting plate 43, a sixth link 44, a seventh link 45, an eighth link 46, a ninth link 47, a seat plate mounting plate 48, a leg rest plate mounting plate 49, a V-shaped link 420, a tenth link 421, an eleventh link 422 and a backrest mounting plate 423.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 to 4, the present embodiment provides a variable sofa frame, including: a front bottom frame 11, a rear bottom frame 12 and two side bottom frames 13; the two lifting mechanisms 2 are respectively arranged on the corresponding side bottom frames 13; the mounting frame 3 is supported on the two lifting mechanisms 2; the two posture adjusting mechanisms 4 are respectively arranged on two sides of the mounting frame 3; wherein the lifting mechanism 2 comprises a fixing plate 21, a first link 22, a second link 23 and a third link 24; the lower end of the fixing plate 21 is fixedly arranged on the side bottom frame 13, and the upper end of the fixing plate is hinged with the rear end of the third connecting rod 24; the rear end of the first connecting rod 22 is hinged with the lower end of the fixing plate 21, and the front end of the first connecting rod 22 is hinged with the lower end of the second connecting rod 23; the middle part of the second connecting rod 23 is hinged with the front end of the third connecting rod 24, and the upper end of the second connecting rod is fixedly connected with the mounting frame 3; the middle portion of the third link 24 is used for supporting the mounting frame 3.
In this embodiment, by providing the lifting mechanism 2, the upper end of the second link 23 is fixedly connected to the mounting frame 3, the middle portion of the third link 24 is used for supporting the mounting frame 3, and can be used for supporting the mounting frame 3, and the front bottom frame 11, the rear bottom frame 12 and the two side bottom frames 13 are matched to improve the stability of the sofa frame.
As shown in fig. 4, in the present embodiment, it is preferable that the outer side of the middle portion of the first link 22 is provided with a first supporting piece 221 supported on the corresponding side bottom frame 13; the first support piece 221 is directly supported on the side bottom frame 13, and provides a stable support point for the support of the lifting mechanism 2.
As shown in fig. 4, in the present embodiment, it is preferable that the middle portion of the third link 24 is bent in a zigzag shape and protrudes upward; and a second support piece 241 is provided at the top end of the bent portion to support the mounting frame 3.
In the present embodiment, the shape of the third link 24 can improve the stress strength thereof; the second support piece 241 improves stability when it supports the mounting frame 3.
In this embodiment, preferably, the mounting frame 3 includes: two oppositely arranged installation side plates 31, and two front cross rods 32 and two rear cross rods 33 which are arranged in parallel and are used for connecting the installation side plates 31; the installation side plate 31 is used for installing a corresponding posture adjusting mechanism 4; the front cross bar 32 is fixedly connected with the upper end of the second connecting rod 23; the rear cross bar 33 is supported on the second support piece 241.
In this embodiment, the mounting frame 3 has a simple structure, and is convenient for transmitting the weight of the sofa to the lifting mechanism 2 and also for mounting the posture adjusting mechanism 4.
In this embodiment, preferably, the end portions of the front and rear bottom frames 11 and 12 extend out of the side bottom frame 13, so as to expand the range of the whole bottom frame and improve the stability.
In this embodiment, optionally, the variable sofa frame further includes: and the fixed end of the driver for driving the lifting mechanism 2 and the posture adjusting mechanism 4 is arranged on the rear bottom frame 12, and the driving end of the driver is connected with the posture adjusting mechanism 4.
In the present embodiment, as shown in fig. 3, as an alternative embodiment of the posture adjustment mechanism 4, the posture adjustment mechanism 4 includes: a rotation link 41, a fourth link 42, a fifth mounting plate 43, a sixth link 44, a seventh link 45, an eighth link 46, a ninth link 47, a seat plate mounting plate 48, and a leg rest plate mounting plate 49; the middle parts of the rotating connecting rods 41 of the two posture adjusting mechanisms 4 are fixedly connected through a driving rotating rod 411; the middle part of the driving rotating rod 411 is provided with a swing rod 412, and the lower end of the swing rod 412 is hinged with the driving end of the driver; the upper end of the rotating connecting rod 41 is hinged with the middle part of the mounting side plate 31, and the lower end is hinged with the front end of the fourth connecting rod 42; the middle part of the fifth mounting piece 43 is fixedly connected with the rear end of the seat plate mounting plate 48, and the lower end of the fifth mounting piece is hinged with the rear end of the fourth connecting rod 42; the upper end of the seventh connecting rod 45 is hinged with the front end of the seat plate mounting plate 48, the lower end of the seventh connecting rod is hinged with the lower end of the eighth connecting rod 46, and the rod body is hinged with the mounting side plate 31; the upper end of the sixth connecting rod 44 is hinged with the front end of the mounting side plate 31, the lower end is hinged with the lower end of the ninth connecting rod 47, and the rod body is hinged with the rod body of the eighth connecting rod 46; the upper end of the eighth connecting rod 46 is hinged with the upper end of the leg placing plate mounting plate 49; the upper end of the ninth connecting rod 47 is hinged with the middle part of the leg rest board mounting plate 49.
When the sofa is adjusted from the sitting posture to the leg rest extension posture, the driving end of the driver is contracted, the rotating link rod 41 is driven to rotate backwards by driving the rotating rod 411, and the leg rest mounting plate 49 is driven to be unfolded by matching of the fourth link rod 42, the fifth mounting piece 43, the sixth link rod 44, the seventh link rod 45, the eighth link rod 46, the ninth link rod 47 and the seat plate mounting plate 48.
In this embodiment, in order to further open the backrest of the sofa, the posture adjusting mechanism 4 further includes: a V-shaped link 420, a tenth link 421, an eleventh link 422, and a backrest mounting plate 423; the upper end of the V-shaped link 420 is hinged to the upper end of the eleventh link 422, the front end thereof is hinged to the front end of the fifth mounting plate 43, and the lower end thereof is hinged to the front end of the tenth link 421; the lower end of the eleventh connecting rod 422 is hinged with the rear end of the mounting side plate 31; the rear end of the tenth link 421 is hinged to the lower end of the backrest mounting plate 423; the front end of the backrest mounting plate 423 is hinged with the upper end of the fifth mounting plate 43.
When the sofa is in the leg rest extension posture, the driving end of the driver is continuously contracted, the seventh connecting rod 45 and the front cross rod 32 are limited to stop the leg rest mounting plate 49 from being unfolded, and the backrest is unfolded through the matching of the V-shaped connecting rod 420, the tenth connecting rod 421, the eleventh connecting rod 422, the fifth mounting piece 43, the mounting side plate 31 and the seat plate mounting plate 48.
In this embodiment, it is preferable that the inner side of the mounting side plate 31 is provided with a limit point 311 for preventing the rotation link 41 from rotating forward when the sofa frame is in the sitting position.
When the sofa is in a sitting posture, the driver can drive the rotating connecting rod 41 to move forwards, at the moment, the limit point 311 prevents the rotating connecting rod 41 from rotating forwards, the force of the driver is applied to the mounting side plate 31, and then the seat plate mounting plate 48 is rotated forwards through the linkage of the lifting mechanism 2, so that a person can stand conveniently.
In summary, the first support pieces 221 supported on the corresponding side bottom frame 13 are disposed on the outer sides of the middle portions of the first links 22, so that the support stability of the variable sofa frame can be improved; the shape of the third connecting rod 24 can improve the stress strength; the second support piece 241 improves the stability when it supports the mounting frame 3; the end parts of the front bottom frame 11 and the rear bottom frame 12 extend out of the side bottom frame 13, so that the range of the whole bottom frame is enlarged, and the stability is improved.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. 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 (9)
1. A variable form sofa frame, comprising:
a front underframe (11), a rear underframe (12) and two side underframe (13);
the two lifting mechanisms (2) are respectively arranged on the corresponding side bottom frames (13);
the mounting frame (3) is supported on the two lifting mechanisms (2); and
two posture adjusting mechanisms (4) are respectively arranged on two sides of the mounting frame (3); wherein
The lifting mechanism (2) comprises a fixing plate (21), a first connecting rod (22), a second connecting rod (23) and a third connecting rod (24); wherein
The lower end of the fixed sheet (21) is fixedly arranged on the side bottom frame (13), and the upper end of the fixed sheet is hinged with the rear end of the third connecting rod (24);
the rear end of the first connecting rod (22) is hinged with the lower end of the fixing plate (21), and the front end of the first connecting rod is hinged with the lower end of the second connecting rod (23);
the middle part of the second connecting rod (23) is hinged with the front end of the third connecting rod (24), and the upper end of the second connecting rod is fixedly connected with the mounting frame (3);
the middle part of the third connecting rod (24) is used for supporting the mounting frame (3).
2. The convertible sofa frame of claim 1,
and a first supporting sheet (221) supported on the corresponding side bottom frame (13) is arranged on the outer side of the middle part of the first connecting rod (22).
3. The convertible sofa frame of claim 1,
the middle part of the third connecting rod (24) is bent in a shape of a Chinese character 'ji', and protrudes upwards; and
the top end of the bending part is provided with a second supporting sheet (241) for supporting the mounting frame (3).
4. The convertible sofa frame of claim 3,
the mounting frame (3) comprises:
the device comprises two opposite installation side plates (31), and two front cross rods (32) and two rear cross rods (33) which are arranged in parallel and are used for connecting the installation side plates (31);
the installation side plate (31) is used for installing a corresponding posture adjusting mechanism (4);
the front cross rod (32) is fixedly connected with the upper end of the second connecting rod (23);
the rear cross bar (33) is supported on a second support piece (241).
5. The convertible sofa frame of claim 1,
the end parts of the front bottom frame (11) and the rear bottom frame (12) extend out of the side bottom frame (13).
6. The convertible sofa frame according to claim 4,
the variable form sofa frame further comprises: and the fixed end of the driver is arranged on the rear bottom frame (12), and the driving end of the driver is connected with the posture adjusting mechanism (4).
7. The convertible sofa frame of claim 6,
the posture adjusting mechanism (4) comprises: a rotating connecting rod (41), a fourth connecting rod (42), a fifth mounting plate (43), a sixth connecting rod (44), a seventh connecting rod (45), an eighth connecting rod (46), a ninth connecting rod (47), a seat plate mounting plate (48 and a leg placing plate mounting plate (49), wherein
The middle parts of the rotating connecting rods (41) of the two posture adjusting mechanisms (4) are fixedly connected through a driving rotating rod (411);
the middle part of the driving rotating rod (411) is provided with a swing rod (412), and the lower end of the swing rod (412) is hinged with the driving end of the driver;
the upper end of the rotating connecting rod (41) is hinged with the middle part of the mounting side plate (31), and the lower end of the rotating connecting rod is hinged with the front end of the fourth connecting rod (42);
the middle part of the fifth mounting piece (43) is fixedly connected with the rear end of the seat plate mounting plate (48), and the lower end of the fifth mounting piece is hinged with the rear end of the fourth connecting rod (42);
the upper end of the seventh connecting rod (45) is hinged with the front end of the seat plate mounting plate (48), the lower end of the seventh connecting rod is hinged with the lower end of the eighth connecting rod (46), and the rod body is hinged with the mounting side plate (31);
the upper end of the sixth connecting rod (44) is hinged with the front end of the mounting side plate (31), the lower end of the sixth connecting rod is hinged with the lower end of the ninth connecting rod (47), and the rod body of the eighth connecting rod (46) is hinged with the rod body;
the upper end of the eighth connecting rod (46) is hinged with the upper end of the leg placing plate mounting plate (49);
the upper end of the ninth connecting rod (47) is hinged with the middle part of the leg placing plate mounting plate (49);
the driving end of the driver is contracted, the rotating connecting rod (41) is driven to rotate backwards through the driving rotating rod (411), and the leg placing plate mounting plate (49) is driven to unfold through the matching of the fourth connecting rod (42), the fifth mounting piece (43), the sixth connecting rod (44), the seventh connecting rod (45), the eighth connecting rod (46), the ninth connecting rod (47) and the seat plate mounting plate (48).
8. The convertible sofa frame of claim 7,
the posture adjusting mechanism (4) further comprises: a V-shaped link (420), a tenth link (421), an eleventh link (422), and a backrest mounting plate (423); wherein
The upper end of the V-shaped connecting rod (420) is hinged with the upper end of the eleventh connecting rod (422), the front end of the V-shaped connecting rod is hinged with the front end of the fifth mounting piece (43), and the lower end of the V-shaped connecting rod is hinged with the front end of the tenth connecting rod (421);
the lower end of the eleventh connecting rod (422) is hinged with the rear end of the mounting side plate (31);
the rear end of the tenth connecting rod (421) is hinged with the lower end of the backrest mounting plate (423);
the front end of the backrest mounting plate (423) is hinged with the upper end of the fifth mounting plate (43).
9. The convertible sofa frame of claim 8,
the inner side of the mounting side plate (31) is provided with a limiting point (311) used for preventing the rotating connecting rod (41) from rotating forwards when the sofa frame is in a sitting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175519.8U CN216316690U (en) | 2021-12-15 | 2021-12-15 | Variable form sofa frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123175519.8U CN216316690U (en) | 2021-12-15 | 2021-12-15 | Variable form sofa frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216316690U true CN216316690U (en) | 2022-04-19 |
Family
ID=81163803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123175519.8U Active CN216316690U (en) | 2021-12-15 | 2021-12-15 | Variable form sofa frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216316690U (en) |
-
2021
- 2021-12-15 CN CN202123175519.8U patent/CN216316690U/en active Active
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