CN213909383U - Functional sofa mechanical stretching device with foldable foot rest - Google Patents
Functional sofa mechanical stretching device with foldable foot rest Download PDFInfo
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- CN213909383U CN213909383U CN202022809346.XU CN202022809346U CN213909383U CN 213909383 U CN213909383 U CN 213909383U CN 202022809346 U CN202022809346 U CN 202022809346U CN 213909383 U CN213909383 U CN 213909383U
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Abstract
The utility model relates to a folding functional sofa mechanical stretching device of bracket, which comprises a bottom frame, a backrest component, a seat frame, a leg supporting mechanism and a driving mechanism, wherein the leg supporting mechanism comprises a leg placing plate and a leg stretching mechanism which is connected with the driving mechanism and used for drawing in and unfolding the leg placing plate, the leg placing plate comprises a first leg placing part and a second leg placing part, the first leg placing part is rotationally connected with the leg stretching mechanism, and the second leg placing part can be selectively connected with the first leg placing part or the leg stretching mechanism; when the second leg rest part is connected with the first leg rest part, the extension device is in a long leg rest state; when the second leg rest section is connected to the leg extension mechanism, the extension device is in a short leg rest state. By adopting the technical scheme, when the space for placing the sofa is large, the long leg placing shape of the sofa can be selected. If the space for placing the sofa is small, the short leg placing shape of the sofa can be selected.
Description
Technical Field
The application relates to the field of home furnishing, in particular to a functional sofa mechanical stretching device with a foldable footrest.
Background
Sofas are currently suitable for use in various areas of life of people, such as offices, living rooms, bedrooms, outdoors, and the like. Along with the development of economy, the variety of furniture used by people in daily life is increasingly diversified, and the requirements of people on the use functions of the furniture are higher and higher. For example, liftable sofa, rotatable sofa, the leisure sofa chair that is applicable to the old person etc. because of the function diversification of above-mentioned all kinds of products, convenient to use and comfortable healthy receive people's favor more and more. The different types of sofas not only can achieve the use function of the traditional sofa, but also can be flexibly adjusted according to the use requirements of users so as to better meet the different use requirements of the users.
The existing sofa generally has two states of sitting posture and lying posture. The conventional sofa leg rest length is too space consuming in some special use scenarios, such as easily hitting a front end table, etc. If the leg rest is simply shortened, the internal mechanism of the sofa cannot be covered in the folded sitting posture state, and the appearance is influenced.
SUMMERY OF THE UTILITY MODEL
In order to improve pleasing to the eye degree, the application provides a function sofa mechanical stretching device that bracket is folding adopts following technical scheme:
a functional sofa mechanical stretching device with a foldable leg rest comprises an underframe, a backrest assembly, a seat frame, a leg supporting mechanism and a driving mechanism, wherein the leg supporting mechanism comprises a leg placing plate and a leg stretching mechanism which is connected with the driving mechanism and used for folding and unfolding the leg placing plate, the leg placing plate comprises a first leg placing part and a second leg placing part, the first leg placing part is rotatably connected with the leg stretching mechanism, and the second leg placing part can be selectively connected with the first leg placing part or the leg stretching mechanism;
when the second leg rest part is connected to the first leg rest part, the stretching device is in a long leg rest state, when the sofa is in a sitting posture, the first leg rest part and the second leg rest part are spliced to be in a vertical state and cover the leg stretching mechanism, and when the sofa is in a lying posture, the first leg rest part and the second leg rest part are spliced to be in a horizontal arrangement;
put the shank when the second and connect when shank extends the mechanism, extend the device and be in the short leg state of putting, when the sofa is in the position of sitting, first put shank and second put the shank concatenation back and be vertical state and cover shank and extend the mechanism, when the sofa is in the appearance of lying, first put the shank and be the level setting, the second is put the shank and is contained angle setting and the second is put shank and covers shank and cover shank and extend the mechanism.
By adopting the technical scheme, when the space for placing the sofa is large, the long leg placing shape of the sofa can be selected. Under the condition that the sofa is in a long leg-resting state, the sofa stretching device is folded, and the second leg-resting part and the first leg-resting part are just combined to block the leg stretching mechanism. The user can not see the leg stretching mechanism of the sofa from the front view to the sofa, and the beauty is improved. Meanwhile, the condition that children, pets and the like stretch hands into the leg stretching mechanisms from the front sides of the sofas is avoided, and potential safety hazards are reduced. When the sofa stretching device is unfolded and the whole sofa is in a lying position, the first leg placing part and the second leg placing part are horizontally arranged, so that the legs of a user can be better supported.
If the space for placing the sofa is small, the short leg placing shape of the sofa can be selected. Under the condition that the sofa is in the short leg-placing state, the sofa stretching device is folded, and when the whole sofa is in the sitting posture state, the second leg-placing part and the first leg-placing part are just combined to block the leg stretching mechanism. When the sofa stretching device is unfolded and the sofa is wholly in a lying posture, the first leg placing part is horizontally arranged, the second leg placing part is turned inwards to block part of the leg stretching mechanism, so that under the condition of ensuring the support of the legs of a user, a certain shielding effect is still played on the leg stretching mechanism, and the attractiveness and the safety are improved. Meanwhile, under the condition of small space, the sofa can still be used without colliding with a tea table in front.
Preferably, the leg is put to the second and is rotated to be connected in first leg rest portion, leg extension mechanism and second leg rest portion are through first coupling assembling and can dismantle the connection, be through second coupling assembling and can dismantle the connection between first leg rest portion and the second leg rest portion.
Through adopting above-mentioned technical scheme to make the second put the shank from being connected with first putting the shank and convert to the in-process of being connected with shank extension mechanism, the second put the shank still have between the shank with first putting the shank to be connected, made things convenient for the second to put the shank and switched under two kinds of states.
Preferably, the leg stretching mechanism comprises a first rod rotatably connected to the seat frame, a second rod rotatably connected to the seat frame and substantially parallel to the first rod, a third rod rotatably connected to the leg rest, a fourth rod rotatably connected to the leg rest and substantially parallel to the third rod, the third rod rotatably connected to the first rod and the second rod, the second rod located on a side of the first rod adjacent to the third rod, and the fourth rod rotatably connected to the second rod.
Through adopting above-mentioned technical scheme, first pole, second pole, third pole and fourth pole form a four-bar linkage, make first pole when rotating, the motion range of the tie point of third pole and leg board and the motion range of the tie point of fourth pole and leg board have the differential, can realize the rotation to leg board. The leg rest board is switched between two states of covering the leg stretching mechanism and being horizontally arranged for leg rest.
Preferably, the first leg placing part is rotatably connected to the third rod and the fourth rod, a fifth rod is connected between the second leg placing part and the second rod, and the fifth rod is rotatably connected to the second leg placing part and the second rod.
Through adopting above-mentioned technical scheme, the effect of transmission can be played to the fifth pole, makes the second put the shank not with first when putting shank fixed connection, the shank can put the shank linkage with first, when the whole appearance of lying that is in of sofa, first put the shank and be the level setting, and the shank is put to the second overturns inwards, blocks partial shank extension mechanism.
Preferably, the second leg rest comprises a second mounting seat, a second leg rest plate fixedly mounted on the second mounting seat, and a connecting plate connected to the second mounting seat in a sliding manner and in a rotating manner, the fifth rod is connected to the connecting plate in a rotating manner, and the connecting plate is detachably connected to the second mounting seat through the first connecting assembly; first put the shank and include first mount pad and fixed mounting the first leg board of putting on first mount pad, be through second coupling assembling and dismantle the connection between second mount pad and the first mount pad, when the sofa was in short leg state of putting, second mount pad fixed connection was in the connecting plate, and when the sofa was in long leg state of putting, second mount pad fixed connection was in first mount pad.
By adopting the technical scheme, the leg stretching mechanism can be smoothly switched between the short leg placing mode and the long leg placing mode.
Preferably, the first connecting assembly comprises a first clamping groove formed in the connecting plate and a first clamping block fixedly arranged on the second mounting seat and used for being matched with the first clamping groove, and the second connecting assembly comprises a second clamping groove formed in the first mounting seat and a second clamping block fixedly arranged on the second mounting seat and used for being matched with the second clamping groove; when the sofa is in a short leg-resting state, the first clamping block is embedded in the first clamping groove, and when the sofa is in a long leg-resting state, the second clamping block is embedded in the second clamping groove.
Through adopting above-mentioned technical scheme, realize the second through the spacing power of first draw-in groove to first fixture block and put the leg and the leg stretches the connection of mechanism, when needs are dismantled, only need with first fixture block roll-off first draw-in groove can. Realize the fixed connection of the leg portion and the first leg portion of putting through the spacing power of second draw-in groove to the second fixture block, when needs are dismantled, only need with second fixture block roll-off second draw-in groove can. The operation is convenient and fast.
Preferably, a guide groove for guiding is formed in the connecting plate, and a guide shaft is fixedly mounted on the second mounting seat; when the sofa is in a long leg resting state and is converted into a lying posture from a sitting posture, the guide shaft is connected with the guide groove in a sliding mode.
By adopting the technical scheme, the sofa can play a role in guiding, so that when the sofa is converted into a lying posture from a sitting posture, the motion trail of the second leg placing part is established, and the posture conversion is more stable.
Preferably, a resisting spring is arranged between the second mounting seat and the first mounting seat, two ends of the resisting spring are fixedly mounted on the second mounting seat and the first mounting seat respectively, and the resisting spring is used for enabling the second clamping block to be tightly resisted in the second clamping groove.
Through adopting above-mentioned technical scheme, support tight spring and can provide an elastic force, make the more stable joint of second fixture block in the second draw-in groove to make the more stable fixed connection of first mount pad in the second mount pad.
Preferably, the resisting spring is parallel to the first leg rest plate.
Through adopting above-mentioned technical scheme to make support the second mount pad application of force that tight spring can be better, make the more stable of first fixture block inlay establish in first draw-in groove, or make the more stable of second fixture block inlay establish in the second draw-in groove.
Preferably, the third rod is provided with a first limiting block and a second limiting block, and when the leg stretching mechanism is in a stretching state, the second rod abuts against the first limiting block; when the leg stretching mechanism is in a furled state, the second rod is abutted to the second limiting block.
Through adopting above-mentioned technical scheme, first stopper and second stopper can play spacing effect and stretch to the certain degree after the shank stretches the mechanism, and the second pole will butt first stopper, can not stretch again and go. After the shank extends the mechanism and extends to the certain degree, the second pole will butt first stopper, can not extend again and go, and when the shank extends the mechanism and draws in to the certain degree, the second pole will butt second stopper, can not continue to draw in again. So that the leg extension mechanism does not over-extend or over-retract. The occurrence of collision of parts with each other due to over-extension or contraction thereof is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the extension device can be switched between a short leg placing state and a long leg placing state, so that the requirements of different users are met;
2. when the leg placing state is short, the extension device occupies small space, the leg placing plate can block the leg extension mechanism in a sitting posture state, the attractiveness is improved, and the possibility of failure caused by foreign objects entering the leg extension mechanism is reduced;
3. the switching of two states of the short leg placing and the long leg placing is convenient.
Drawings
Figure 1 is a side view of the embodiment in a short legrest-recumbent position.
Figure 2 is a schematic structural view of the embodiment in a short legrest-sitting position.
Fig. 3 is a schematic structural view of the embodiment in a short leg rest-lying posture state.
Figure 4 is a partial schematic view of the embodiment in a short leg rest-recumbent position.
Figure 5 is a schematic structural view of the embodiment at the first connection assembly when the leg rest is short.
Figure 6 is a schematic structural view of the embodiment at a second connection assembly when in a long leg rest.
Figure 7 is a schematic structural view of the embodiment in a long leg rest-sitting position.
Fig. 8 is a schematic structural view of the embodiment in a long leg rest-lying posture state.
Figure 9 is a partial schematic view of the embodiment in a long leg rest-recumbent position.
Figure 10 is a partial schematic view of the embodiment in a long leg rest-recumbent position against the springs.
Fig. 11 is a partial schematic view of the embodiment in a long leg rest state, converted from a sitting position to a lying position.
Figure 12 is a schematic illustration of the operation of the embodiment for converting from a long leg rest to a short leg rest.
Description of reference numerals: 1. a chassis; 2. a backrest assembly; 3. a seat frame; 4. a leg support mechanism; 5. a drive mechanism; 6. a first lever; 7. a second lever; 8. a third lever; 9. a fourth bar; 10. a fifth lever; 11. a sixth rod; 12. a seventh lever; 13. an eighth bar; 14. a ninth bar; 15. a first leg rest section; 16. a second leg rest portion; 17. a first mounting seat; 18. a first leg rest plate; 19. a second mounting seat; 20. a second leg rest plate; 21. a connecting plate; 22. a chute; 23. a rotating shaft; 24. a first connection assembly; 25. a first card slot; 26. a first clamping block; 27. a second connection assembly; 28. a second card slot; 29. a second fixture block; 30. a first connecting shaft; 31. a second connecting shaft; 32. a first stopper; 33. a second limiting block; 34. the spring is tightly propped; 35. a guide shaft; 36. a guide groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-12.
The embodiment of the application discloses a functional sofa mechanical stretching device with a foldable foot rest. Referring to fig. 1, the stretching apparatus includes a base frame 1, a backrest assembly 2, a seat frame 3, a leg support mechanism 4, and a driving mechanism 5. The leg support mechanism 4 includes a leg rest and a leg extension mechanism. The leg stretching mechanisms are provided with two legs and are respectively positioned at two ends of the leg placing plate.
The driving mechanism 5 drives the leg stretching mechanism to fold or unfold, thereby realizing the shape change of the leg rest board. Referring to fig. 2, in a sitting posture, the leg stretching mechanism is folded, and the leg rest is arranged in the vertical direction and shields the leg stretching mechanism, so that the appearance is attractive, and the probability of foreign matters entering the leg stretching mechanism can be reduced. Referring to fig. 1, in the lying position, the leg stretching mechanism is unfolded, and the leg rest plate portion is horizontally disposed so as to provide a supporting force for the legs of the person.
Specifically, referring to fig. 3, the leg stretching mechanism includes a first rod 6, a second rod 7, a third rod 8, a fourth rod 9, a fifth rod 10, a sixth rod 11, a seventh rod 12, an eighth rod 13, and a ninth rod 14. The first lever 6 is rotatably connected to the seat frame 3, and the second lever 7 is substantially parallel to the first lever 6 and is also rotatably connected to the seat frame 3. The third rod 8 is rotatably connected to the first rod 6 and the second rod 7, and the second rod 7 is positioned on the side of the first rod 6 close to the third rod 8. The fourth bar 9 is substantially parallel to the third bar 8 and is rotatably connected to the second bar 7. The leg rest is pivotally connected to a third rod 8 and a fourth rod 9, and the connection point of the third rod 8 to the leg rest and the connection point of the fourth rod 9 to the leg rest are aligned. The first bar 6, the second bar 7, the third bar 8 and the fourth bar 9 form a four-bar linkage so that the leg rest is switched between a horizontal state and a vertical state when the first bar 6 is rotated.
Referring to fig. 3, the sixth rod 11 is rotatably connected to the second rod 7, the seventh rod 12 is rotatably connected to an end of the sixth rod 11 away from the second rod 7, and the seventh rod 12 is rotatably connected to the seat frame 3. The eighth rod 13 is rotatably connected to the first rod 6, and the ninth rod 14 is rotatably connected to an end of the eighth rod 13 away from the first rod 6 and rotatably connected to the seat frame 3. The driving mechanism 5 may be a two-shaft motor, and the output end of the driving mechanism 5 is connected to the seventh rod 12, so as to drive the seventh rod 12 to rotate. Under the force transmission of the sixth rod 11, the driving force can be transmitted to the first rod 6, so that the folding and unfolding of the leg stretching mechanism are realized. The sixth rod 11 and the seventh rod 12 can play a role of supporting the second rod 7, and the eighth rod 13 and the ninth rod 14 can play a role of supporting the first rod 6, so that the first rod 6 and the second rod 7 can rotate relative to the seat frame 3 more stably.
In order to adapt the mechanical extension device of the functional sofa for more occasions, referring to fig. 4, the leg rest plate comprises a first leg rest part 15 and a second leg rest part 16. The first leg rest portion 15 includes a first mounting seat 17 and a first leg rest plate 18 fixedly mounted on the first mounting seat 17. The first mounting seats 17 are two and are respectively located at two ends of the first leg rest plate 18. The second leg rest 16 includes a second mounting seat 19, a second leg rest plate 20 fixedly mounted on the second mounting seat 19, and a connecting plate 21 slidably and rotatably connected to the second mounting seat 19. The second mounting seat 19 and the connecting plate 21 are both provided with two, and the second mounting seat 19 is mounted at two ends of the second leg rest plate 20.
Referring to fig. 4, a connecting plate 21 corresponds to a second mounting seat 19 and, in turn, a leg extension mechanism. The two ends of the fifth rod 10 are respectively connected with the second rod 7 and the connecting plate 21 corresponding to the second rod in a rotating way. Referring to fig. 5, the connecting plate 21 and the second mounting seat 19 are detachably connected by a first connecting assembly 24. Referring to fig. 6, the second mounting seat 19 is detachably connected with the first mounting seat 17 through a second connecting assembly 27
When the second mounting seat 19 is fixedly connected to the connecting plate 21, the sofa is in a short leg resting state; when the second mounting seat 19 is fixedly connected to the first mounting seat 17, the sofa is in a long leg resting state.
Referring to fig. 2, if the space for placing the sofa is small, the short leg rest configuration of the sofa may be selected. When the sofa is in the short leg rest state, the sofa stretching device is folded, and when the whole sofa is in the sitting posture state, the second leg rest part 16 and the first leg rest part 15 are just combined to block the leg stretching mechanism. Referring to fig. 3, when the sofa extension device is unfolded and the whole sofa is in a lying position, the first leg rest plate 18 is horizontally arranged, and the second leg rest plate 20 is turned inwards to block part of the leg extension mechanism, so that under the condition of ensuring the leg support of a user, a certain shielding effect is still exerted on the leg extension mechanism, and the attractiveness and the safety are improved. Meanwhile, under the condition of small space, the sofa can still be used without colliding with a tea table in front.
Referring to fig. 7, in the state of the sofa in the long leg rest state, the sofa extension device is folded, and the second leg rest portion 16 and the first leg rest portion 15 are just combined to block the leg extension mechanism. The user can not see the leg stretching mechanism of the sofa from the front view to the sofa, and the beauty is improved. Meanwhile, the condition that children, pets and the like stretch hands into the leg stretching mechanisms from the front sides of the sofas is avoided, and potential safety hazards are reduced. Referring to fig. 8, when the sofa extension device is unfolded and the sofa is in a lying position as a whole, the first leg rest portion 15 and the second leg rest portion 16 are horizontally disposed to better support the legs of the user.
Specifically, referring to fig. 9, the second mounting seat 19 is provided with a sliding groove 22 along a length direction thereof, the first mounting seat 17 is fixedly connected with a rotating shaft 23, and the rotating shaft 23 is slidably connected to the sliding groove 22 and rotatably connected to the sliding groove 22. The rotating shaft 23 passes through the connecting plate 21 and is rotatably connected to the connecting plate 21. The connecting plate 21 is rotatably connected to the second mounting seat 19 by a rotating shaft 23. Referring to fig. 5, the first connection assembly 24 includes a first engaging groove 25 opened on the connection plate 21 and a first engaging block 26 fixedly disposed on the second mounting seat 19 for engaging with the first engaging groove 25. Referring to fig. 6, the second connecting assembly 27 includes a second locking groove 28 opened on the first mounting seat 17 and a second locking block 29 fixedly disposed on the second mounting seat 19 for cooperating with the second locking groove 28.
Referring to fig. 5, when the sofa is in the short leg resting state, the first latch 26 is embedded in the first slot 25, and when the sofa is in the long leg resting state, referring to fig. 6, the second latch 29 is embedded in the second slot 28. Referring to fig. 10, if the sofa needs to be converted from a short leg rest to a long leg rest, the second mounting seat 19 is slid relative to the connecting piece to separate the first block 26 from the first slot 25, and then the second mounting seat 19 is rotated relative to the first mounting seat 17 until the second mounting seat 19 is parallel to the first mounting seat 17. Then, the second mounting seat 19 is slid relative to the first mounting seat 17, and at this time, the rotating shaft 23 slides in the sliding groove 22 until the second engaging block 29 is engaged in the second engaging groove 28.
Referring to fig. 10, in order to make the short and long leg rest modes of the sofa more stable, a holding spring 34 is provided between the second mounting seat 19 and the first mounting seat 17, and the holding spring 34 is parallel to the leg rest plate. Specifically, the first mounting seat 17 is fixedly provided with a first connecting shaft 30, and the second mounting seat 19 is fixedly provided with a second connecting shaft 31. Two ends of the abutting spring 34 are respectively fixedly arranged on the first connecting shaft 30 and the second connecting shaft 31. The abutting spring 34 provides a tensile stress, so that the first latch 26 can be more stably inserted into the first slot 25, or the second latch 29 can be more stably inserted into the second slot 28.
Referring to fig. 11, in order to stabilize the movement locus of the second leg rest 16 in the long leg rest mode, a guide groove 36 for guiding is formed in the connecting plate 21, and a guide shaft 35 is fixedly mounted on the second mounting base 19. When the sofa is in a long leg resting state and the sofa is converted from a sitting posture to a lying posture, the guide shaft 35 is slidably connected to the guide groove 36.
Referring to fig. 4, to prevent excessive movement of the leg stretching mechanism, a first stopper 32 and a second stopper 33 are mounted on the third lever 8. When the leg stretching mechanism is in the folded state, the second rod 7 abuts against the first stopper 32. When the leg stretching mechanism is in the stretched state, the second lever 7 abuts against the second stopper 33.
The implementation principle of the functional sofa mechanical stretching device with the foldable foot rest in the embodiment of the application is as follows:
1. in the initial state, the mechanical stretching device is in a short leg placing state, the first clamping block 26 is embedded in the first clamping groove 25, and the second leg placing plate 20 is fixedly connected to the connecting plate 21 and is rotatably connected to the first leg placing part 15;
2. when the sofa is in a sitting posture state, the first leg placing plate 18 and the second leg placing plate 20 are arranged in the vertical direction and are spliced into a vertical surface, so that the leg stretching mechanism is blocked, the attractiveness is improved, and the probability of foreign matters entering the leg stretching mechanism is reduced;
3. when the sofa needs to be converted from a sitting posture to a lying posture, the driving mechanism 5 drives the seventh rod 12 to rotate relative to the seat frame 3, and drives the first rod 6, the second rod 7, the third rod 8 and the fourth rod 9 to rotate under the force transmission of the sixth rod 11, so that the leg stretching mechanism is changed from a folded state to an unfolded state, and the first leg placing plate 18 is gradually converted from a vertical arrangement to a horizontal arrangement due to different displacements of the third rod 8 and the fourth rod 9 on the first leg placing plate 18, so that the legs of a user can be conveniently provided with supporting force;
4. at this time, the second leg rest plate 20 rotates relative to the first leg rest plate 18 under the force transmission of the fifth rod 10, so that the second leg rest plate is turned inwards to block part of the leg extension mechanism; the second leg rest plate 20 does not collide with the tea table in front, so that the sofa can be used in a smaller space;
5. if the sofa needs to be converted from the lying posture to the sitting posture, the seventh rod 12 is reversely rotated by the driving mechanism 5;
6. if the sofa needs to be converted from the short leg resting state to the long leg resting state, the leg stretching mechanism is moved to the stretching state, and then the second mounting seat 19 slides relative to the connecting piece as shown in fig. 12, so that the first clamping block 26 is separated from the first clamping groove 25;
7. rotating the second mounting base 19 relative to the first mounting base 17 until the second mounting base 19 is parallel to the first mounting base 17;
8. then the second mounting seat 19 slides relative to the first mounting seat 17, at this time, the rotating shaft 23 slides in the sliding groove 22 until the second clamping block 29 is clamped in the second clamping groove 28, and at this time, the second leg rest plate 20 is fixedly connected to the first leg rest plate 18;
9. at this time, if the sofa is in a sitting posture state, the first leg rest plate 18 and the second leg rest plate 20 are arranged in a vertical direction and spliced with each other to form a vertical surface to block the leg stretching mechanism; if the sofa is in a lying posture, the first leg rest plate 18 and the second leg rest plate 20 are arranged in a horizontal direction and spliced into a horizontal plane for supporting the feet of a user.
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 function sofa mechanical stretching device that bracket is folding, includes chassis (1), back subassembly (2), seat frame (3), shank supporting mechanism (4) and actuating mechanism (5), its characterized in that: the leg supporting mechanism (4) comprises a leg placing plate and a leg stretching mechanism connected with the driving mechanism (5) and used for folding and unfolding the leg placing plate, the leg placing plate comprises a first leg placing part (15) and a second leg placing part (16), the first leg placing part (15) is rotatably connected with the leg stretching mechanism, and the second leg placing part (16) can be selectively connected with the first leg placing part (15) or the leg stretching mechanism;
when the second leg rest part (16) is connected to the first leg rest part (15), the stretching device is in a long leg rest state, when the sofa is in a sitting posture, the first leg rest part (15) and the second leg rest part (16) are spliced to be in a vertical state and cover the leg stretching mechanism, and when the sofa is in a lying posture, the first leg rest part (15) and the second leg rest part (16) are spliced to be horizontally arranged;
when shank (16) are put to the second and are connected when shank extends the mechanism, extend the device and be in short leg rest state, when the sofa is in the position of sitting, first leg rest portion (15) and second put and be vertical state and cover shank and extend the mechanism after shank (16) concatenation, when the sofa is in the appearance of lying, first leg rest portion (15) are the level setting, the second is put shank (16) and first leg rest portion (15) and is the contained angle setting and the second puts shank (16) and covers part shank and extend the mechanism.
2. The functional sofa mechanical stretching device with foldable foot rest according to claim 1, wherein: the leg is put in the second (16) and is rotated to be connected in first leg rest portion (15), leg extension mechanism and second leg rest portion (16) are through first coupling assembling (24) and can dismantle the connection, be through second coupling assembling (27) and can dismantle the connection between first leg rest portion (15) and the second leg rest portion (16).
3. The functional sofa mechanical stretching device with foldable foot rest according to claim 2, wherein: the leg stretching mechanism comprises a first rod (6) rotatably connected to the seat frame (3), a second rod (7) rotatably connected to the seat frame (3) and approximately parallel to the first rod (6), a third rod (8) rotatably connected to the leg placing plate, and a fourth rod (9) rotatably connected to the leg placing plate and approximately parallel to the third rod (8), wherein the third rod (8) is rotatably connected to the first rod (6) and the second rod (7), the second rod (7) is located on one side, close to the third rod (8), of the first rod (6), and the fourth rod (9) is rotatably connected to the second rod (7).
4. The functional sofa mechanical stretching device with foldable foot rest according to claim 3, wherein: first put shank (15) and rotate to be connected in third pole (8) and fourth pole (9), be connected with fifth pole (10) between second put shank (16) and second pole (7), fifth pole (10) rotate to be connected in second put shank (16) and second pole (7).
5. The functional sofa mechanical stretching device with foldable foot rest according to claim 4, wherein: the second leg placing part (16) comprises a second mounting seat (19), a second leg placing plate (20) fixedly mounted on the second mounting seat (19) and a connecting plate (21) connected to the second mounting seat (19) in a sliding connection and rotating mode, the fifth rod (10) is connected to the connecting plate (21) in a rotating mode, and the connecting plate (21) is detachably connected with the second mounting seat (19) through a first connecting assembly (24); first put shank (15) including first mount pad (17) and first put leg board (18) of fixed mounting on first mount pad (17), be detachable connection through second coupling assembling (27) between second mount pad (19) and first mount pad (17), when the sofa is in short leg rest state, second mount pad (19) fixed connection in connecting plate (21), when the sofa is in long leg rest state, second mount pad (19) fixed connection in first mount pad (17).
6. The functional sofa mechanical stretching device with foldable foot rest according to claim 5, wherein: the first connecting assembly (24) comprises a first clamping groove (25) formed in the connecting plate (21) and a first clamping block (26) fixedly arranged on the second mounting seat (19) and used for being matched with the first clamping groove (25), and the second connecting assembly (27) comprises a second clamping groove (28) formed in the first mounting seat (17) and a second clamping block (29) fixedly arranged on the second mounting seat (19) and used for being matched with the second clamping groove (28); when the sofa is in a short leg-rest state, the first clamping block (26) is embedded in the first clamping groove (25), and when the sofa is in a long leg-rest state, the second clamping block (29) is embedded in the second clamping groove (28).
7. The functional sofa mechanical stretching device with foldable foot rest according to claim 5, wherein: a guide groove (36) for guiding is formed in the connecting plate (21), and a guide shaft (35) is fixedly mounted on the second mounting seat (19); when the sofa is in a long leg resting state and is converted into a lying state from a sitting posture, the guide shaft (35) is connected with the guide groove (36) in a sliding mode.
8. The functional sofa mechanical stretching device with foldable foot rest according to claim 6, wherein: a tight-resisting spring (34) is arranged between the second mounting seat (19) and the first mounting seat (17), two ends of the tight-resisting spring (34) are fixedly mounted on the second mounting seat (19) and the first mounting seat (17) respectively, and the tight-resisting spring (34) is used for enabling the second clamping block (29) to be tightly resisted in the second clamping groove (28).
9. The functional sofa mechanical stretching device with foldable foot rest according to claim 8, wherein: the abutting spring (34) is parallel to the first leg rest plate (18).
10. The folding functional sofa mechanical stretching device of claim 3,
the method is characterized in that: a first limiting block (32) and a second limiting block (33) are mounted on the third rod (8), and when the leg stretching mechanism is in a stretching state, the second rod (7) abuts against the first limiting block (32); when the leg stretching mechanism is in a furled state, the second rod (7) is abutted to the second limiting block (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022809346.XU CN213909383U (en) | 2020-11-28 | 2020-11-28 | Functional sofa mechanical stretching device with foldable foot rest |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568875A (en) * | 2020-11-28 | 2022-06-03 | 顾家家居股份有限公司 | Functional sofa mechanical stretching device with foldable foot rest |
| WO2023056686A1 (en) * | 2021-10-08 | 2023-04-13 | 德沃康科技集团有限公司 | Sofa seat stretching device |
-
2020
- 2020-11-28 CN CN202022809346.XU patent/CN213909383U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114568875A (en) * | 2020-11-28 | 2022-06-03 | 顾家家居股份有限公司 | Functional sofa mechanical stretching device with foldable foot rest |
| CN114568875B (en) * | 2020-11-28 | 2024-03-19 | 顾家家居股份有限公司 | Foldable functional sofa mechanical stretching device of foot rest |
| WO2023056686A1 (en) * | 2021-10-08 | 2023-04-13 | 德沃康科技集团有限公司 | Sofa seat stretching device |
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