CN214156788U - Simple structure's function sofa machinery extends device - Google Patents
Simple structure's function sofa machinery extends device Download PDFInfo
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- CN214156788U CN214156788U CN202022375375.XU CN202022375375U CN214156788U CN 214156788 U CN214156788 U CN 214156788U CN 202022375375 U CN202022375375 U CN 202022375375U CN 214156788 U CN214156788 U CN 214156788U
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Abstract
The application relates to a functional sofa mechanical stretching device with a simple structure, which comprises a mounting rod, wherein two ends of the mounting rod are respectively provided with a supporting component for supporting a leg part, and the mounting rod is also provided with a driving part for driving the two supporting components to stretch and fold; the support assembly includes a connecting rod, a first leg support for supporting the lower leg, a second leg support for supporting the foot, and a force-transfer mechanism. The sofa leg back cushion can be arranged on the first leg supporting piece and the second leg supporting piece at the same time, so that the overall length of the sofa leg back cushion is longer, and the legs of a human body can be better supported. After folding, the first leg support and the second leg support may overlap without increasing the space occupied. When the device is installed, the device can be installed on any furniture through a connecting rod or an installation rod. The device overall structure is simple, no longer need with other spare part linkages, the installation modularization, the leg that makes the sofa of installation the device can adjust alone supports, improves user's comfort level.
Description
Technical Field
The application relates to the field of functional sofas, in particular to a functional sofa mechanical stretching device with a simple structure.
Background
The existing adjustable armrest floor series sofas are internally provided with stretching mechanical support frames, and the mechanical stretching support iron frame can adjust the relative positions and angles of pedals, a seat part and a backrest of the sofa through the work of a series of mechanical linkage mechanisms so as to realize the switching of the sitting posture, the leisure posture and the lying posture of the sofa. The main structure of the mechanical stretching support in the existing electrically adjustable sofa comprises: a leg extension assembly, a seat frame assembly, a back follower assembly, and a suspension mechanism. The suspension mechanism is provided with a push rod motor for providing extension power, the push rod motor simultaneously pushes the leg extension component and the seat frame component to extend the leg extension component to the front of the sofa, the seat frame component sinks and slides to the front of the sofa, and the backrest follow-up component descends and inclines simultaneously, so that the sofa is adjusted to a leisure posture or a lying posture.
The sofa is integrally linked, namely the leg stretching component, the seat frame and the backrest follow-up component are all started. The user cannot adjust the leg extension assembly independently.
To the correlation technique among the above-mentioned, utility model people think there is unable independent control shank extension subassembly, leads to influencing user comfort in use's defect.
SUMMERY OF THE UTILITY MODEL
To allow for independent movement of the leg extension assembly to enhance comfort.
The application provides a simple structure's function sofa mechanical stretching device adopts following technical scheme:
a functional sofa mechanical stretching device with a simple structure comprises a mounting rod, wherein two ends of the mounting rod are respectively provided with a supporting component for supporting a leg part, and the mounting rod is also provided with a driving part for driving the two supporting components to stretch and fold; the support assembly comprises a connecting rod for connecting the mounting rod, a first leg support for supporting the lower leg, a second leg support for supporting the foot, and a force transmission mechanism for transmitting the driving force of the driving member to the first leg support and the second leg support, wherein the second leg support is rotatably connected to the first leg support; the second leg support is substantially parallel to the connecting bar and perpendicular to the first leg support when the support assembly is in the folded state; the second leg support is parallel to the first leg support when the support assembly is in the extended state.
By adopting the technical scheme, the sofa leg cushion can be simultaneously installed on the first leg supporting piece and the second leg supporting piece, so that the overall length of the sofa leg cushion is longer, and meanwhile, the legs of a human body can be better supported. Meanwhile, after being folded, the first leg supporting piece and the second leg supporting piece can be overlapped, and occupied space cannot be increased. When the device is installed, the device can be installed on any sofa or other chairs, lying beds and the like for leisure and rest at home through connecting rods or installing rods.
The device overall structure is simple, no longer need with other spare part linkages, the installation modularization, the sofa that makes the installation the device also can adjust the shank alone and support, improves user's comfort level.
Preferably, the force transmission mechanism comprises a first connecting rod, a second connecting rod, a force transmission piece and a force transmission assembly, wherein the second connecting rod is connected to the first connecting rod in a sliding mode along the length direction of the first connecting rod, the force transmission piece is used for transmitting the driving force of the first connecting rod to the second leg supporting piece, the force transmission assembly is connected to the connecting rod in a rotating mode, the first connecting rod is connected to the first leg supporting piece in a rotating mode, the second connecting rod is connected to the first leg supporting piece in a rotating mode and is connected to the first leg supporting piece in a sliding mode, two ends of the force transmission piece are connected to the first connecting rod and the second leg supporting piece in a rotating mode respectively, the force transmission assembly is used for converting the rotating force of the force transmission assembly into the driving force for driving the first connecting rod and the second connecting rod to move relatively, and the driving piece drives the force transmission assembly to rotate relatively to the connecting rod.
Through adopting above-mentioned technical scheme, pass power the subassembly and rotate under the effect of driving piece, drive first connecting rod and second connecting rod through passing power the subassembly and rotate, and at the length direction relative slip that rotates in-process first connecting rod and second connecting rod and only can follow itself, drive the motion of first shank support piece. Thereby achieving deployment of the support assembly.
When the supporting component needs to be folded, the driving piece drives the force transmission component, the force transmission component drives the first connecting rod and the second connecting rod to rotate, and the first connecting rod and the second connecting rod slide relatively in the rotating process to drive the first leg supporting piece to move, so that the supporting component is folded. In the process, no gap can be formed between the first connecting rod and the second connecting rod, so that the phenomenon that the user stretches fingers into the gap can not occur, and the problem can not occur when the leg function sofa mechanical stretching device is folded. The probability of pinching the hand for the above reasons is reduced.
Preferably, the power transmission assembly comprises a third connecting rod and a fourth connecting rod, the third connecting rod is rotatably connected to the connecting rod, the fourth connecting rod is rotatably connected to the seat connecting rod, the third connecting rod is parallel to the fourth connecting rod, the third connecting rod and the fourth connecting rod are both rotatably connected to the second connecting rod, and the driving part is connected to the fourth connecting rod.
Through adopting above-mentioned technical scheme to make and form parallelogram between connecting rod, third connecting rod, fourth connecting rod and the second connecting rod, make the motion structure more stable. So that the second connecting rod can stably rotate relative to the connecting rod.
Preferably, the second connecting rod is provided with at least one first guide post along the length direction thereof, the first connecting rod is provided with at least one first guide groove along the length direction thereof, the first guide groove is provided along the length direction of the first connecting rod, one first guide groove at least corresponds to one first guide post, and the first guide post is slidably embedded in the first guide groove.
Through adopting above-mentioned technical scheme, the cooperation between guide way and the first guide post can play spacing effect, ensures only to follow its length direction relative motion between first connecting rod and the second connecting rod to make the gap can not appear between the two, thereby reduce and stretch into the gap with the hand and the probability of tong.
Preferably, the first connecting rod is fixedly provided with a lug along one side wall of the length direction of the first connecting rod, the lug and the first connecting rod are located on the same plane, the fourth connecting rod is provided with a second guide post, and the second guide post is slidably connected to the lug.
By adopting the technical scheme, the guiding function is further realized, and meanwhile, the fourth connecting rod can also have a driving force for the first connecting rod when rotating instead of simply driving the second connecting rod. Therefore, the first connecting rod and the second connecting rod can perform relative movement more efficiently, and the supporting component can be stretched out more quickly.
Preferably, a second guide groove is formed in the lug, the second guide column is connected to the second guide column in a sliding mode, and an included angle is formed between the second guide groove and the first guide groove.
By adopting the technical scheme, the first connecting rod is guided and supported at multiple points in the process of moving relative to the second connecting rod, so that the first connecting rod moves more stably.
Preferably, a third guide groove is formed in the first leg supporting piece, a third guide post is arranged on the second connecting rod, and the third guide post is embedded in the third guide groove and is connected to the third guide groove in a sliding mode.
By adopting the technical scheme, the method has the advantages that,
preferably, the connecting rod further comprises a first limiting shaft fixedly mounted on the connecting rod, and a first limiting groove is formed in the side wall of the third connecting rod, facing the fourth connecting rod, on one side; when the supporting component is fully extended, the first limiting shaft is abutted against the first limiting groove.
Through adopting above-mentioned technical scheme, the cooperation of first spacing groove and first spacing axle can play a limiting displacement to when making the supporting component expand completely, first spacing axle can butt in first spacing groove, prevents that the supporting component from continuing to move, destroys its state of expanding.
Preferably, a second limiting shaft is fixedly mounted on the connecting rod, and a second limiting groove is formed in the side wall of the third connecting rod, which is far away from the fourth connecting rod; when the supporting component is fully extended, the second limiting shaft is abutted against the second limiting groove.
Through adopting above-mentioned technical scheme, the cooperation of second spacing groove and the spacing axle of second can play a limiting displacement to when making supporting component fold completely, the spacing axle of second can butt in the spacing groove of second, prevents that supporting component from continuing to move, causes the condition that the part damaged because the collision.
Preferably, the driving part comprises a linkage rod and a driving cylinder for giving driving force to the linkage rod, two ends of the linkage rod are respectively and fixedly connected to the fourth connecting rod, and the driving cylinder gives the driving force to the linkage rod perpendicular to the linkage rod.
By adopting the technical scheme, the linkage rod plays a good linkage role, the two supporting components can be synchronously unfolded and folded, and the operation is stable.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the legs have no scissor structure, so that the risk of clamping fingers is avoided;
2. the occupied space is small;
3. the supporting component can be unfolded and folded smoothly.
Drawings
FIG. 1 is a schematic view of the embodiment in an expanded configuration.
FIG. 2 is a schematic view of the embodiment in a folded configuration.
FIG. 3 is a partial schematic view of the embodiment in an extended position;
FIG. 4 is a partial schematic view of the embodiment at a third guide slot when extended;
FIG. 5 is a partial schematic view of the embodiment when folded.
Description of reference numerals: 1. mounting a rod; 2. a support assembly; 3. a drive member; 4. a linkage rod; 5. a drive cylinder; 6. a connecting rod; 7. a first leg support; 8. a second leg support; 9. a first link; 10. a second link; 11. a force transfer assembly; 12. a third guide groove; 13. a third guide post; 14. a force transfer member; 15. a stopper; 16. a first guide post; 17. a first guide groove; 18. a gasket; 19. a tab; 20. a second guide groove; 21. a second guide post; 22. a third link; 23. a fourth link; 24. a first limit shaft; 25. a first limit groove; 26. a second limit shaft; 27. a second limit groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses simple structure's function sofa mechanical stretching device. Referring to fig. 1, the single-leg functional sofa mechanical stretching device includes a mounting rod 1, a support assembly 2 and a driving member 3. The two supporting components 2 are arranged and are respectively arranged on two sides of the mounting rod 1. The driving piece 3 comprises a linkage rod 4 and a driving cylinder 5 used for giving driving force to the linkage rod 4, and the driving cylinder 5 is an electric cylinder. Two ends of the driving cylinder 5 are respectively connected with the mounting rod 1 and the linkage rod 4 in a rotating way. Two ends of the linkage rod 4 are respectively connected with the two supporting components 2.
Referring to fig. 1 and 2, the driving cylinder 5 transmits a driving force to the linkage rod 4, and then the linkage rod 4 drives the support assembly 2 to fold or unfold. The entire leg module can be mounted on any piece of furniture by means of the mounting bar 1 to support the leg. Simple structure and can meet the various requirements of consumers.
Referring to fig. 1, the support assembly 2 comprises a connecting rod 6 for connecting the mounting rod 1, a first leg support 7 for supporting the lower leg, a second leg support 8 for supporting the foot, a force-transfer mechanism. The force transmission mechanism comprises a first connecting rod 9, a second connecting rod 10 connected with the first connecting rod 9 in a sliding mode along the length direction of the first connecting rod 9, and a force transmission assembly 11 connected with the connecting rod 6 in a rotating mode.
Referring to fig. 1 and 2, during installation, the first leg support 7 and the second leg support 8 may be both provided with sofa leg cushions, and when the support assembly 2 is in the unfolded extreme state, the cushions mounted on the first leg support 7 and the second leg support 8 are in the same plane, and the two cushions are spliced to form a complete cushion, which can better support the legs of a human body. When the support assembly 2 is folded, the second leg support 8 is perpendicular to the first leg support 7 and the second leg support 8 is folded under the connecting bar 6.
In particular, with reference to fig. 3 and 4, a first link 9 is rotatably connected to first leg support 7, and a second link 10 is rotatably connected to first leg support 7 and slidably connected to first leg support 7. Specifically, a third guide groove 12 is formed in the first leg supporting member 7, a third guide post 13 is arranged on the second connecting rod 10, and the third guide post 13 is embedded in the third guide groove 12 and slidably connected to the third guide groove 12.
Referring to fig. 3 and 5, a force transmission member 14 is disposed between the second leg support 8 and the first link 9, and both ends of the force transmission member 14 are rotatably connected to the second leg support 8 and the first link 9, respectively. A stop 15 is provided on the second leg support 8. When the supporting component 2 is in the folded limit state, the stop 15 abuts against the force transmission piece 14, and the limit block abuts against the force transmission piece 14.
Referring to fig. 3 and 5, the first link 9 and the second link 10 abut against each other and are relatively fixed in the thickness direction thereof. Specifically, two first guide posts 16 are arranged on the second connecting rod 10 along the length direction thereof, two first guide grooves 17 are arranged on the first connecting rod 9 along the length direction thereof, and the first guide grooves 17 are arranged on the first connecting rod 9 along the length direction thereof. A first guide slot 17 corresponds to a first guide post 16, and the first guide post 16 is slidably embedded in the first guide slot 17.
As shown in fig. 3, a washer 18 is sleeved on the first guide post 16, and the washer 18 is located between the first link 9 and the second link 10 and abuts against the first link 9 and the second link 10. One end of the first guide post 16, which is far away from the second connecting rod 10, is provided with a limiting block for limiting the first connecting rod 9, and the limiting block abuts against the first connecting rod 9.
As shown in fig. 3, a tab 19 is fixedly disposed on one side wall of the first link 9 along the length direction thereof, and a second guide groove 20 is formed on the tab 19. The lug 19 and the first link 9 are located on the same plane, the second link is provided with a second guide post 21, and the second guide post 21 is slidably connected to the second guide groove 20.
As shown in fig. 1, the connecting rod 6 is fixedly connected to one end of the mounting rod 1 by bolts or welding. The force transmission assembly 11 comprises a third connecting rod 22 rotatably connected to the connecting rod 6 and a fourth connecting rod 23 rotatably connected to the connecting rod 6, the third connecting rod 22 is parallel to the fourth connecting rod 23, and the third connecting rod 22 and the fourth connecting rod 23 are both rotatably connected to the second connecting rod 10. The linkage rod 4 is fixedly connected to the fourth connecting rod 23.
As shown in fig. 3, a first limit shaft 24 is fixedly mounted on the connecting rod 6, and a first limit groove 25 is formed in a side wall of the third connecting rod 22 facing the fourth connecting rod 23; when the supporting component 2 is fully extended, the first limiting shaft 24 abuts against the first limiting groove 25. As shown in fig. 5, a second limiting shaft 26 is fixedly mounted on the connecting rod 6, and a second limiting groove 27 is formed in a side wall of the third connecting rod 22, which is away from the fourth connecting rod 23; when the supporting component 2 is completely folded, the second limiting shaft 26 abuts against the second limiting groove 27.
The application principle of the functional sofa mechanical stretching device with the simple structure is as follows:
when the support assembly 2 is in the folded position, the mounting end of the first leg support 7 for mounting the sofa leg rest is perpendicular to the ground and the mounting end of the second leg support 8 for mounting the sofa leg rest is parallel to the ground, thereby keeping it in a low footprint state.
When the support assembly 2 is converted from the folded state to the unfolded state, the piston rod of the driving cylinder 5 is extended, and the linkage rod 4 is provided with driving force along the length direction of the connecting rod 6, so that the third connecting rod 22 and the fourth connecting rod 23 rotate. At this time, the third link 22 and the fourth link 23 directly drive the second link 10 to rotate, the first guide post 16 slides in the first guide slot 17, and the second guide post 21 slides in the second guide slot 20, so that the first link 9 and the second link 10 slide relatively.
When the first link 9 and the second link 10 slide relative to each other, the difference in movement between the first link 9 and the second link 10 provides a driving force to the first leg support 7, causing the first leg support 7 to rotate until the first leg support 7 rotates to such an extent that its upper end surface is parallel to the ground. At the same time, the first link 9 rotates, which drives the force transmission member 14 to rotate, and the force transmission member 14 drives the second leg support member 8 to rotate relative to the first leg support member 7. When first leg support 7 is rotated to the extent that its upper end surface is parallel to the ground, second leg support 8 is rotated 9 ° relative to first leg support 7 so that second leg support 8 on second leg support 8 is in the same plane as the mounting plane of first leg support 7. At the moment, the supporting component 2 is completely unfolded, so that the legs of the human body can be well supported. At this time, the first limit shaft 243 abuts against the first limit groove 25.
When the shank support assembly 24 is converted from the unfolded state to the folded state, similarly, the piston rod of the driving cylinder 531 is shortened, and the linkage rod 4 is provided with a driving force along the length direction of the seat frame 3, so that the third connecting rod 22 and the fourth connecting rod 23 rotate, the first connecting rod 9 and the second connecting rod 10 slide relatively, and at the moment, the second leg support member 8 is retracted. Until the stop block 15 is reset to be abutted against the force transmission piece 14, the limit block is abutted against the force transmission piece 14. At this point the support assembly 2 is fully collapsed and returns to its collapsed condition.
In the above process, no gap is present between the folded components of the lower leg support assembly 24, thereby reducing the probability of pinching the hand by inserting it into the gap. The safety is greatly improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a simple structure's function sofa mechanical stretching device which characterized in that: the leg-supporting device comprises a mounting rod (1), wherein supporting components (2) for supporting legs are arranged at two ends of the mounting rod (1), and a driving piece (3) for driving the two supporting components (2) to extend and fold is further arranged on the mounting rod (1); the support assembly (2) comprises a connecting rod (6) for connecting the mounting rod (1), a first leg support (7) for supporting the lower leg, a second leg support (8) for supporting the foot, and a force transmission mechanism for transmitting the driving force of the driving piece (3) to the first leg support (7) and the second leg support (8), wherein the second leg support (8) is rotatably connected to the first leg support (7); the second leg support (8) is substantially parallel to the connecting rod (6) and perpendicular to the first leg support (7) when the support assembly (2) is in a folded state; the second leg support (8) is parallel to the first leg support (7) when the support assembly (2) is in an extended state.
2. A simple functional sofa extension device as claimed in claim 1, wherein: the force transmission mechanism comprises a first connecting rod (9), a second connecting rod (10) connected to the first connecting rod (9) in a sliding manner along the length direction of the first connecting rod (9), a force transmission piece (14) used for transmitting the driving force of the first connecting rod (9) to the second leg supporting piece (8) and a force transmission assembly (11) connected to the connecting rod (6) in a rotating manner, the first connecting rod (9) is connected to the first leg supporting piece (7) in a rotating manner, the second connecting rod (10) is connected to the first leg supporting piece (7) in a rotating manner and connected to the first leg supporting piece (7) in a sliding manner, two ends of the force transmission piece (14) are respectively connected to the first connecting rod (9) and the second leg supporting piece (8) in a rotating manner, the force transmission assembly (11) is used for converting the rotating force thereof into a driving force for driving the first connecting rod (9) and the second connecting rod (10) to move relatively, the driving piece (3) drives the force transmission assembly (11) to rotate relative to the connecting rod (6).
3. A simple functional sofa extension device as claimed in claim 2, wherein: the power transmission assembly (11) comprises a third connecting rod (22) and a fourth connecting rod (23), the third connecting rod (22) is rotatably connected to the connecting rod (6), the fourth connecting rod (23) is rotatably connected to the seat connecting rod (6), the third connecting rod (22) is parallel to the fourth connecting rod (23), the third connecting rod (22) and the fourth connecting rod (23) are both rotatably connected to the second connecting rod (10), and the driving piece (3) is connected to the fourth connecting rod (23).
4. A simple functional sofa extension device as claimed in claim 3, wherein: at least one first guide post (16) is arranged on the second connecting rod (10) along the length direction of the second connecting rod, at least one first guide groove (17) is formed in the first connecting rod (9) along the length direction of the first connecting rod, the first guide groove (17) is formed in the first connecting rod (9) along the length direction of the first connecting rod, one first guide groove (17) at least corresponds to one first guide post (16), and the first guide post (16) is slidably embedded in the first guide groove (17).
5. The simple-structure functional sofa mechanical stretching device as claimed in claim 4, wherein: the first connecting rod (9) is fixedly provided with a lug (19) along one side wall of the length direction of the first connecting rod, the lug (19) and the first connecting rod (9) are located on the same plane, a second guide post (21) is arranged on the fourth connecting rod (23), and the second guide post (21) is connected to the lug (19) in a sliding mode.
6. The mechanical extension device of functional sofa in simple structure as claimed in claim 5, wherein: the lug plate (19) is provided with a second guide groove (20), the second guide column (21) is connected to the second guide column (21) in a sliding mode, and an included angle is formed between the second guide groove (20) and the first guide groove (17).
7. A simple functional sofa extension device as claimed in claim 3, wherein: a third guide groove (12) is formed in the first leg supporting piece (7), a third guide column (13) is arranged on the second connecting rod (10), and the third guide column (13) is embedded in the third guide groove (12) and is connected to the third guide groove (12) in a sliding mode.
8. A simple functional sofa extension device as claimed in claim 3, wherein: a first limiting shaft (24) is fixedly mounted on the connecting rod (6), and a first limiting groove (25) is formed in the side wall of one side, facing the fourth connecting rod (23), of the third connecting rod (22); when the supporting component (2) is fully extended, the first limiting shaft (24) is abutted against the first limiting groove (25).
9. The mechanical extension device of functional sofa in simple structure as claimed in claim 8, wherein: a second limiting shaft (26) is fixedly mounted on the connecting rod (6), and a second limiting groove (27) is formed in the side wall of the third connecting rod (22) which is far away from the fourth connecting rod (23); when the supporting component (2) is fully extended, the second limiting shaft (26) is abutted against the second limiting groove (27).
10. A simple functional sofa extension device as claimed in claim 3, wherein: the driving piece (3) comprises a linkage rod (4) and a driving cylinder (5) used for giving driving force to the linkage rod (4), two ends of the linkage rod (4) are respectively and fixedly connected to a fourth connecting rod (23), and the driving cylinder (5) gives the driving force, which is perpendicular to the linkage rod (4), to the linkage rod (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022375375.XU CN214156788U (en) | 2020-10-22 | 2020-10-22 | Simple structure's function sofa machinery extends device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022375375.XU CN214156788U (en) | 2020-10-22 | 2020-10-22 | Simple structure's function sofa machinery extends device |
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| CN214156788U true CN214156788U (en) | 2021-09-10 |
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| CN202022375375.XU Active CN214156788U (en) | 2020-10-22 | 2020-10-22 | Simple structure's function sofa machinery extends device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114468652A (en) * | 2022-01-25 | 2022-05-13 | 浙江锴创科技有限公司 | Mechanical stretching device of functional sofa |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114468652A (en) * | 2022-01-25 | 2022-05-13 | 浙江锴创科技有限公司 | Mechanical stretching device of functional sofa |
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