CN210008761U - Sofa frame with improved structure - Google Patents
Sofa frame with improved structure Download PDFInfo
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- CN210008761U CN210008761U CN201920625851.3U CN201920625851U CN210008761U CN 210008761 U CN210008761 U CN 210008761U CN 201920625851 U CN201920625851 U CN 201920625851U CN 210008761 U CN210008761 U CN 210008761U
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Abstract
The utility model relates to the technical field of sofa frame frameworks, in particular to a structurally improved sofa frame, which comprises an underframe structure, a linkage mechanism, a back structure, a leg structure and a driving device, wherein the leg structure and the back structure are respectively connected with the underframe structure; the linkage mechanism comprises a leg rotating rod, a first linkage plate, a first linkage rod, a second linkage rod, a third linkage rod, a fourth linkage rod, a fifth linkage rod, a second linkage plate, a back rotating rod, a sixth linkage rod and a seventh linkage rod. The utility model provides a linkage of sofa frame shape structure and size reasonable in design for the sofa frame can be in zero gravity state completely under the appearance state of lying, and shank structure perk is high promptly, and ground is pressed close to more to the back structure, lets the people enjoy the state of zero gravity, and the human body of being convenient for further relaxs the rest.
Description
Technical Field
The utility model relates to a skeleton technical field of sofa frame especially indicates a construction improvement's sofa frame.
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 frame can not be completely in a zero gravity state in a lying posture state, namely, a leg bearing bracket is not high, a back bearing frame is not close enough to the ground, and people can not have a rest in a further relaxing way.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a institutional advancement's sofa frame, the link gear shape structure and the size reasonable in design of this sofa frame for the sofa frame can be in zero gravity state completely under the appearance state of lying, and shank structure perks highly promptly, and ground is more pressed close to the back structure, lets the people enjoy the state of zero gravity, and the human body of being convenient for further relaxes the rest.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a sofa frame with an improved structure comprises an underframe structure, a linkage mechanism, a back structure, a leg structure and a driving device, wherein the leg structure and the back structure are respectively connected with the underframe structure;
the linkage mechanism comprises a leg rotating rod, a first linkage plate, a first linkage rod, a second linkage rod, a third linkage rod, a fourth linkage rod, a fifth linkage rod, a second linkage plate, a back rotating rod, a sixth linkage rod and a seventh linkage rod;
one end of the leg rotating rod is hinged to the leg structure, and the other end of the leg rotating rod is hinged to the middle of the first linkage plate; one end of the sixth linkage rod is hinged to the underframe structure, the other end of the sixth linkage rod is hinged to one end of the seventh linkage rod, the other end of the seventh linkage rod is hinged to the leg structure, and the middle part of the seventh linkage rod is connected to the underframe structure; one end of the first linkage rod is hinged to one end of the first linkage plate, the other end of the first linkage rod is hinged to the underframe structure, one end of the fifth linkage rod is hinged to the other end of the first linkage plate, and the other end of the fifth linkage rod is hinged to the underframe structure; the one end of second linkage arm articulates in the middle part of first linkage plate, and the other end of second linkage arm articulates in the one end of third linkage arm, and the other end of third linkage arm articulates in the middle part of second linkage plate, and the one end of fourth linkage arm articulates in the middle part of second linkage arm, and the other end of fourth linkage arm articulates in the one end of second linkage plate, and the other end of second linkage plate articulates in the one end of back dwang, and the other end of back dwang articulates in back structure, and the one end that second linkage plate and back dwang articulated is connected in chassis structure.
Furthermore, the first linkage plate is provided with a rotating guide pulley, the second linkage plate is provided with a guide sliding block, the guide sliding block is concavely provided with a guide sliding groove, and the guide pulley is arranged in the guide sliding groove in a rolling manner.
Furthermore, the second linkage plate is provided with a guide pulley limiting block for limiting the guide pulley.
Further, the back structure comprises a back fixing frame, a back supporting frame, a first back rod and a second back rod; the first back rod comprises a first connecting part and a second connecting part which are integrally formed, and the first connecting part and the second connecting part are arranged in a crossed mode; one end of the first connecting part is hinged to the back rotating rod, and the other end of the first connecting part is hinged to the back fixing frame; one end of the back second rod is hinged to the second connecting part, the other end of the back second rod is hinged to the back supporting frame, and the back supporting frame is hinged to the back fixing frame.
Furthermore, the back fixing frame comprises a third connecting part, a fourth connecting part and a fifth connecting part which are integrally formed, the third connecting part and the fourth connecting part are respectively connected to two ends of the fifth connecting part, and the third connecting part, the fourth connecting part and the fifth connecting part are in a U shape after being connected; the fifth connecting part is connected to the underframe structure, the first connecting part is hinged to the third connecting part, and the back support frame is hinged to the fourth connecting part.
Further, back support frame is including integrated into one piece's back of the body pole and leaning on the pole, and the one end of back of the body pole articulates in fourth connecting portion, and the other end of back of the body pole articulates in back second pole.
Furthermore, the leg structure comprises a leg first rod, a leg second rod, a leg third rod, a leg fourth rod, a leg fifth rod, a leg sixth rod, a leg seventh rod, a leg eighth rod, a leg front rod, a first leg support and a second leg support, wherein the first leg support comprises a support hinge part and a first leg support body which are integrally formed, and the second leg support comprises a triangular hinge part and a second leg support body which are integrally formed;
one end of the first leg rod is hinged to one end of the leg rotating rod, the other end of the first leg rod is hinged to one end of the third leg rod, and one end of the seventh linkage rod is hinged to the middle of the first leg rod; one end of the second leg rod is hinged to the underframe structure, the other end of the second leg rod is hinged to one end of the fourth leg rod, the middle of the second leg rod is hinged to the middle of the third leg rod, and the other end of the fourth leg rod is hinged to the triangular hinge; the first leg support body is hinged to one end of the fifth leg rod and the middle of the fourth leg rod, and the hinged part of the first leg support body and the fifth leg rod and the hinged part of the first leg support body and the fourth leg rod are arranged at intervals; the other end of the leg part fifth rod is hinged to one end of a leg part seventh rod, the other end of the leg part seventh rod is hinged to one end of the leg part front rod, and the middle part of the leg part seventh rod is hinged to the triangular hinged part; one end of the leg part sixth rod is hinged to the other end of the leg part third rod, the other end of the leg part sixth rod is hinged to the middle of the leg part seventh rod, the middle of the leg part sixth rod is hinged to the middle of the leg part fourth rod, and the hinge position of the leg part seventh rod and the leg part sixth rod and the hinge position of the leg part seventh rod and the triangular hinge part are arranged at intervals; one end of the leg part eighth rod is hinged to the triangular hinged part, and the other end of the leg part eighth rod is hinged to the middle part of the leg part front rod.
Further, the underframe structure comprises a front beam, a middle frame, a rear beam and a mounting frame; one end of the sixth linkage rod is hinged to the mounting frame, one end of the first linkage rod is hinged to the mounting frame, one end of the fifth linkage rod is hinged to the mounting frame, the front beam is connected to the middle of the seventh linkage rod, the middle frame is connected to the middle of the first linkage plate, and the rear beam is connected to one end of the second linkage plate.
Furthermore, the driving device comprises a telescopic rod and a driving motor, the telescopic rod is in driving connection with the driving motor, and the driving motor is used for driving the telescopic rod to stretch; the front beam and the rear beam are both provided with a lug support, the telescopic rod is hinged with the lug support of the front beam, and the driving motor is hinged with the lug support of the rear beam.
Furthermore, the mounting bracket is provided with a first limiting lug for limiting the first linkage rod and a second limiting lug for limiting the fifth linkage rod, and the first limiting lug and the second limiting lug are positioned on the same side of the mounting bracket.
The utility model has the advantages that: in actual work, the driving device provides power, and the linkage mechanism drives the back structure and the leg structure to extend or contract, so that the back structure and the leg structure are telescopically adjusted. When the back structure and the leg structure are in the contraction state, namely the sofa frame is in the sitting posture state, and when the back structure and the leg structure are in the extension state, namely the sofa frame is in the lying posture state. In the process that the sofa frame is changed from the sitting posture state to the lying posture state, the driving device drives the seventh linkage rod to move forwards and the second linkage plate to move backwards, the moved seventh linkage rod drives the sixth linkage rod to rotate, meanwhile, the moved seventh linkage rod drives the leg structure to extend, the extended leg structure drives one end of the leg rotating rod to rotate, and the other end of the rotated leg rotating rod drives the first linkage plate to move backwards. The first linkage plate moving backwards drives the first linkage rod, the fifth linkage rod and the second linkage rod to rotate, the second linkage rod and the second linkage plate moving backwards drive the third linkage rod and the fourth linkage rod to rotate and extend simultaneously, the second linkage plate moving backwards drives the back rotating rod to rotate, and the rotating back rotating rod drives the back structure to extend. The linkage mechanism plays a role in power transmission and linkage in the telescopic process of the leg structure and the back structure. The utility model provides a link gear shape structure and size reasonable in design for the sofa frame can be in zero gravity state completely under the appearance state of lying, and leg structure perks highly promptly, and ground is pressed close to more to the back structure, lets the people enjoy the state of zero gravity, and the human body of being convenient for further relaxs the rest.
Drawings
Fig. 1 is a schematic structural view of the present invention in an extended state.
Fig. 2 is an exploded view of the present invention from another perspective in the extended state.
Fig. 3 is a schematic structural view of the present invention in a contracted state.
Fig. 4 is a schematic structural view of a second linkage plate according to the present invention.
Fig. 5 is a schematic structural view of the first back rod of the present invention.
Description of reference numerals:
front beam 11, middle frame 12, rear beam 13, mounting frame 14, first limit bump 141, second limit bump 142, lug frame 15, leg rotating rod 21, first linkage plate 22, guide pulley 221, first linkage rod 23, second linkage rod 24, third linkage rod 25, fourth linkage rod 26, fifth linkage rod 27, second linkage plate 28, guide slider 281, guide chute 282, guide pulley limit block 283, back rotating rod 29, sixth linkage rod 210, seventh linkage rod 211, back fixing frame 31, third connection part 311, fourth connection part 312, fifth connection part 313, back support frame 32, back rod 321, backrest rod 322, back first rod 33, first connection part 331, second connection part 332, back second rod 34, leg first rod 41, leg second rod 42, leg third rod 43, leg fourth rod 44, leg fifth rod 45, leg sixth rod 46, leg seventh rod 47, an eighth leg rod 48, a front leg rod 49, a first leg support 410, a support hinge 4101, a first leg support body 4102, a second leg support 411, a triangular hinge 4111, a second leg support body 4112, a telescopic rod 51 and a driving motor 52.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 3, the sofa frame with improved structure provided by the present invention comprises an underframe structure, a linkage mechanism, a back structure, a leg structure and a driving device, wherein the leg structure and the back structure are respectively connected with the underframe structure, the driving device is respectively connected with the leg structure and the back structure in a driving manner, and two ends of the linkage mechanism are respectively connected with the leg structure and the back structure;
the linkage mechanism comprises a leg rotating rod 21, a first linkage plate 22, a first linkage rod 23, a second linkage rod 24, a third linkage rod 25, a fourth linkage rod 26, a fifth linkage rod 27, a second linkage plate 28, a back rotating rod 29, a sixth linkage rod 210 and a seventh linkage rod 211;
one end of the leg rotating rod 21 is hinged to the leg structure, and the other end of the leg rotating rod 21 is hinged to the middle of the first linkage plate 22; one end of the sixth linkage rod 210 is hinged to the underframe structure, the other end of the sixth linkage rod 210 is hinged to one end of the seventh linkage rod 211, the other end of the seventh linkage rod 211 is hinged to the leg structure, and the middle part of the seventh linkage rod 211 is connected to the underframe structure; one end of the first linkage rod 23 is hinged to one end of the first linkage plate 22, the other end of the first linkage rod 23 is hinged to the underframe structure, one end of the fifth linkage rod 27 is hinged to the other end of the first linkage plate 22, and the other end of the fifth linkage rod 27 is hinged to the underframe structure; one end of the second linkage rod 24 is hinged to the middle of the first linkage plate 22, the other end of the second linkage rod 24 is hinged to one end of the third linkage rod 25, the other end of the third linkage rod 25 is hinged to the middle of the second linkage plate 28, one end of the fourth linkage rod 26 is hinged to the middle of the second linkage rod 24, the other end of the fourth linkage rod 26 is hinged to one end of the second linkage plate 28, the other end of the second linkage plate 28 is hinged to one end of the back rotating rod 29, the other end of the back rotating rod 29 is hinged to the back structure, and one end of the second linkage plate 28, which is hinged to the back rotating rod 29, is.
In actual work, the driving device provides power, and the driving device drives the back structure and the leg structure to extend or contract through the linkage mechanism, so that the back structure and the leg structure are telescopically adjusted. When the back structure and the leg structure are in the contraction state, namely the sofa frame is in the sitting posture state, and when the back structure and the leg structure are in the extension state, namely the sofa frame is in the lying posture state. In the process of changing the sofa frame from the sitting posture state to the lying posture state, the driving device drives the seventh linkage rod 211 to move forward and the second linkage plate 28 to move backward, the moved seventh linkage rod 211 drives the sixth linkage rod 210 to rotate, meanwhile, the moved seventh linkage rod 211 drives the leg structure to extend, the extended leg structure drives one end of the leg rotating rod 21 to rotate, and the other end of the rotated leg rotating rod 21 drives the first linkage plate 22 to move backward. The first linkage plate 22 moving backwards drives the first linkage rod 23, the fifth linkage rod 27 and the second linkage rod 24 to rotate, the second linkage rod 24 and the second linkage plate 28 moving backwards simultaneously drive the third linkage rod 25 and the fourth linkage rod 26 to rotate and extend, the second linkage plate 28 moving backwards drives the back rotating rod 29 to rotate, and the back rotating rod 29 rotating drives the back structure to extend. The linkage mechanism plays a role in power transmission and linkage in the telescopic process of the leg structure and the back structure. The utility model provides a link gear shape structure and size reasonable in design for the sofa frame can be in zero gravity state completely under the appearance state of lying, and leg structure perks highly promptly, and ground is pressed close to more to the back structure, lets the people enjoy the state of zero gravity, and the human body of being convenient for further relaxs the rest.
As shown in fig. 2 and 4, in this embodiment, the first linkage plate 22 is provided with a rotating guide pulley 221, the second linkage plate 28 is provided with a guide slider 281, the guide slider 281 is concavely provided with a guide chute 282, and the guide pulley 221 is arranged in the guide chute 282 in a rolling manner.
In operation, second linkage plate 28 moves rearward a greater distance than first linkage plate 22, and first linkage plate 22 and second linkage plate 28 move relative to each other. In the process of relative movement of the first linkage plate 22 and the second linkage plate 28, the guide pulley 221 rolls along the guide chute 282, so that the first linkage plate 22 and the second linkage plate 28 can both move relatively in the correct direction, and meanwhile, the abrasion between the first linkage plate 22 and the second linkage plate 28 is reduced, and the friction noise during the relative movement between the first linkage plate and the second linkage plate is reduced.
As shown in fig. 4, in this embodiment, the second linkage plate 28 is provided with a pulley stopper 283 for stopping the pulley 221.
In actual operation, when the guide pulley 221 slides to the limit position, the guide pulley 221 abuts against the guide pulley limit block 283, so that the first linkage plate 22 and the second linkage plate 28 stop moving, and the first linkage plate 22 and the second linkage plate 28 are prevented from moving and transiting.
As shown in fig. 1, 2, 3 and 5, in the present embodiment, the back structure includes a back mount 31, a back support frame 32, a back first bar 33 and a back second bar 34; the back first rod 33 comprises a first connecting part 331 and a second connecting part 332 which are integrally formed, and the first connecting part 331 and the second connecting part 332 are arranged in a crossed manner; one end of the first connecting portion 331 is hinged to the back rotating lever 29, and the other end of the first connecting portion 331 is hinged to the back fixing frame 31; one end of the back second rod 34 is hinged to the second connecting portion 332, the other end of the back second rod 34 is hinged to the back support frame 32, and the back support frame 32 is hinged to the back fixing frame 31. The back fixing frame 31 comprises a third connecting part 311, a fourth connecting part 312 and a fifth connecting part 313 which are integrally formed, the third connecting part 311 and the fourth connecting part 312 are respectively connected to two ends of the fifth connecting part 313, and the third connecting part 311, the fourth connecting part 312 and the fifth connecting part 313 are in a U shape after being connected; the fifth connecting portion 313 is connected to the bottom frame structure, the first connecting portion 331 is hinged to the third connecting portion 311, and the back support frame 32 is hinged to the fourth connecting portion 312. The back support frame 32 includes a back rod 321 and a backrest rod 322 integrally formed, one end of the back rod 321 is hinged to the fourth connecting portion 312, and the other end of the back rod 321 is hinged to the back second rod 34.
When the back structure extends, the second linkage rod 24 that moves drives back dwang 29 and rotates, pivoted back dwang 29 drives first connecting portion 331 and rotates, second connecting portion 332 rotates along with first connecting portion 331, the one end of pivoted first connecting portion 331 rotates along the articulated department with back mount 31, pivoted second connecting portion 332 drives back second pole 34 and rotates, pivoted back second pole 34 drives back support frame 32 and rotates, pivoted back support frame 32 rotates along with back mount 31, the extension is realized to pivoted back support frame 32. Specifically, one end of the first connecting portion 331 rotates along a hinge with the third connecting portion 311, and the rotating back support frame 32 rotates along a hinge with the fourth connecting portion 312. The back fixing frame 31 is designed reasonably and provides a base for the first connecting portion 331 and the back supporting frame 32. Specifically, the rotating back second rod 34 drives the back rod 321 to rotate, the rotating back rod 321 drives the leaning rod 322 to rotate, and meanwhile, the rotating back rod 321 rotates along the hinge point with the fourth connecting portion 312. The shape structure and the size of back structure reasonable in design for the sofa frame is more pressed close to ground at back support frame 32 under the appearance state of lying, lets the people enjoy the state of zero gravity, and the human body of being convenient for further relaxes the rest.
As shown in fig. 1 and 2, in the present embodiment, the leg structure includes a first leg rod 41, a second leg rod 42, a third leg rod 43, a fourth leg rod 44, a fifth leg rod 45, a sixth leg rod 46, a seventh leg rod 47, an eighth leg rod 48, a front leg rod 49, a first leg support 410 and a second leg support 411, the first leg support 410 includes an integrally formed support hinge 4101 and a first leg support body 4102, and the second leg support 411 includes an integrally formed triangular hinge 4111 and a second leg support body 4112;
one end of the first leg rod 41 is hinged to one end of the leg rotating rod 21, the other end of the first leg rod 41 is hinged to one end of the third leg rod 43, and one end of the seventh linkage rod 211 is hinged to the middle of the first leg rod 41; one end of the leg second rod 42 is hinged to the underframe structure, the other end of the leg second rod 42 is hinged to one end of the leg fourth rod 44, the middle part of the leg second rod 42 is hinged to the middle part of the leg third rod 43, and the other end of the leg fourth rod 44 is hinged to the triangular hinge joint 4111; the first leg support body 4102 is hinged to one end of the leg fifth rod 45 and the middle part of the leg fourth rod 44, and the hinged part of the first leg support body 4102 and the leg fifth rod 45 and the hinged part of the first leg support body 4102 and the leg fourth rod 44 are arranged at intervals; the other end of the leg fifth rod 45 is hinged to one end of a leg seventh rod 47, the other end of the leg seventh rod 47 is hinged to one end of a leg front rod 49, and the middle part of the leg seventh rod 47 is hinged to the triangular hinge 4111; one end of the leg sixth rod 46 is hinged to the other end of the leg third rod 43, the other end of the leg sixth rod 46 is hinged to the middle of the leg seventh rod 47, the middle of the leg sixth rod 46 is hinged to the middle of the leg fourth rod 44, the hinge joint of the leg seventh rod 47 and the leg sixth rod 46 and the hinge joint of the leg seventh rod 47 and the triangular hinge joint 4111 are arranged at intervals; one end of the leg eighth rod 48 is hinged to the triangular hinge portion 4111, and the other end of the leg eighth rod 48 is hinged to the middle of the leg front rod 49.
When the leg structure is extended, the moving seventh linkage rod 211 drives the leg first rod 41 to rotate, the rotating leg first rod 41 drives the leg third rod 43 to rotate, and meanwhile, the rotating leg first rod 41 drives the leg rotating rod 21 to rotate. The first rod 41 of pivoted shank drives the third rod 43 of shank and rotates, the third rod 43 of pivoted shank drives the second rod 42 of shank and the sixth rod 46 of shank and rotates, the second rod 42 of pivoted shank drives the fourth rod 44 of shank and rotates, the sixth rod 46 of pivoted shank drives the seventh rod 47 of shank and rotates, the seventh rod 47 of pivoted shank drives the fifth rod 45 of shank and rotates, the fifth rod 45 of pivoted shank drives the first leg support body 4102 and rotates, simultaneously the first leg support body 4102 of pivoted rotates along the articulated department with the fourth rod 44 of shank, the seventh rod 47 of pivoted shank drives the preceding rod 49 of shank and rotates, the preceding rod 49 of pivoted shank drives the eighth rod 48 of shank and rotates. Three corners of the triangular hinge 4111 are hinged to one end of the leg fourth rod 44, a middle portion of the leg seventh rod 47 and one end of the leg eighth rod 48, respectively, and the rotating leg fourth rod 44, the rotating leg seventh rod 47 and the rotating leg eighth rod 48 simultaneously drive the triangular hinge 4111 to be extended.
When the leg structure is contracted, the first leg rod 41, the second leg rod 42, the third leg rod 43, the fourth leg rod 44, the fifth leg rod 45, the sixth leg rod 46, the seventh leg rod 47, the eighth leg rod 48, the front leg rod 49, the first leg support 410 and the second leg support 411 are sequentially folded, and are accommodated below the chassis structure after being contracted, so that the distance between the chassis structure and the ground cannot be occupied, the structure is compact, and the space is saved.
The shape structure and the size of the leg structure are reasonable in design, so that the leg structure of the sofa frame is warped to be high in the lying posture state, a person can enjoy the zero-gravity state, and the human body can relax conveniently.
As shown in fig. 1, in the present embodiment, the underframe structure includes a front beam 11, a middle frame 12, a rear beam 13, and a mounting frame 14; one end of the sixth linkage rod 210 is hinged to the mounting frame 14, one end of the first linkage rod 23 is hinged to the mounting frame 14, one end of the fifth linkage rod 27 is hinged to the mounting frame 14, the front beam 11 is connected to the middle of the seventh linkage rod 211, the middle frame 12 is connected to the middle of the first linkage plate 22, and the rear beam 13 is connected to one end of the second linkage plate 28. The driving device comprises an expansion link 51 and a driving motor 52, the expansion link 51 is in driving connection with the driving motor 52, and the driving motor 52 is used for driving the expansion link 51 to expand and contract; the front beam 11 and the rear beam 13 are both provided with a support lug frame 15, the telescopic rod 51 is hinged with the support lug frame 15 of the front beam 11, and the driving motor 52 is hinged with the support lug frame 15 of the rear beam 13.
In actual operation, the driving motor 52 drives the telescopic rod 51 to extend or contract, so that the front beam 11 and the rear beam 13 move away from or close to each other, the moving front beam 11 drives the seventh linkage rod 211 to move, and the moving rear beam 13 drives the second linkage plate 28 to move. The underframe structure is a main structure used for bearing the sofa, and is convenient for the installation of the sofa main body. The drive means is effective to provide effective drive to the leg structure and the back structure.
As shown in fig. 2, in this embodiment, the mounting frame 14 is provided with a first limiting protrusion 141 for limiting the first linkage rod 23 and a second limiting protrusion 142 for limiting the fifth linkage rod 27, and the first limiting protrusion 141 and the second limiting protrusion 142 are located on the same side of the mounting frame 14.
In practical work, when the first linkage rod 23 rotates to the limit position, the first linkage rod 23 abuts against the first limit bump 141, and the first limit bump 141 prevents the first linkage rod 23 from rotating and transiting. When the fifth linkage rod 27 rotates to the limit position, the fifth linkage rod 27 abuts against the second limit bump 142, and the second limit bump 142 prevents the fifth linkage rod 27 from rotating and transiting.
All the technical features in the embodiment can be freely combined according to actual needs.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
Claims (10)
1. The utility model provides a construction improvement's sofa frame which characterized in that: the leg structure and the back structure are respectively connected with the underframe structure, the driving device is in driving connection with the leg structure and the back structure, and two ends of the linkage mechanism are respectively connected with the leg structure and the back structure;
the linkage mechanism comprises a leg rotating rod, a first linkage plate, a first linkage rod, a second linkage rod, a third linkage rod, a fourth linkage rod, a fifth linkage rod, a second linkage plate, a back rotating rod, a sixth linkage rod and a seventh linkage rod;
one end of the leg rotating rod is hinged to the leg structure, and the other end of the leg rotating rod is hinged to the middle of the first linkage plate; one end of the sixth linkage rod is hinged to the underframe structure, the other end of the sixth linkage rod is hinged to one end of the seventh linkage rod, the other end of the seventh linkage rod is hinged to the leg structure, and the middle part of the seventh linkage rod is connected to the underframe structure; one end of the first linkage rod is hinged to one end of the first linkage plate, the other end of the first linkage rod is hinged to the underframe structure, one end of the fifth linkage rod is hinged to the other end of the first linkage plate, and the other end of the fifth linkage rod is hinged to the underframe structure; the one end of second linkage arm articulates in the middle part of first linkage plate, and the other end of second linkage arm articulates in the one end of third linkage arm, and the other end of third linkage arm articulates in the middle part of second linkage plate, and the one end of fourth linkage arm articulates in the middle part of second linkage arm, and the other end of fourth linkage arm articulates in the one end of second linkage plate, and the other end of second linkage plate articulates in the one end of back dwang, and the other end of back dwang articulates in back structure, and the one end that second linkage plate and back dwang articulated is connected in chassis structure.
2. The sofa frame of claim 1, wherein the sofa frame further comprises: the first linkage plate is provided with a rotating guide pulley, the second linkage plate is provided with a guide sliding block, a guide sliding groove is concavely arranged on the guide sliding block, and the guide pulley is arranged in the guide sliding groove in a rolling mode.
3. The sofa frame according to claim 2, wherein the sofa frame comprises: and the second linkage plate is provided with a guide pulley limiting block for limiting the guide pulley.
4. The sofa frame of claim 1, wherein the sofa frame further comprises: the back structure comprises a back fixing frame, a back supporting frame, a back first rod and a back second rod; the first back rod comprises a first connecting part and a second connecting part which are integrally formed, and the first connecting part and the second connecting part are arranged in a crossed mode; one end of the first connecting part is hinged to the back rotating rod, and the other end of the first connecting part is hinged to the back fixing frame; one end of the back second rod is hinged to the second connecting part, the other end of the back second rod is hinged to the back supporting frame, and the back supporting frame is hinged to the back fixing frame.
5. The sofa frame according to claim 4, wherein the sofa frame comprises: the back fixing frame comprises a third connecting part, a fourth connecting part and a fifth connecting part which are integrally formed, the third connecting part and the fourth connecting part are respectively connected to two ends of the fifth connecting part, and the third connecting part, the fourth connecting part and the fifth connecting part are in a U shape after being connected; the fifth connecting part is connected to the underframe structure, the first connecting part is hinged to the third connecting part, and the back support frame is hinged to the fourth connecting part.
6. The sofa frame according to claim 5, wherein the sofa frame comprises: the back support frame comprises a back rod and a back rod which are integrally formed, one end of the back rod is hinged to the fourth connecting portion, and the other end of the back rod is hinged to the back second rod.
7. The sofa frame of claim 1, wherein the sofa frame further comprises: the leg structure comprises a leg first rod, a leg second rod, a leg third rod, a leg fourth rod, a leg fifth rod, a leg sixth rod, a leg seventh rod, a leg eighth rod, a leg front rod, a first leg support and a second leg support, wherein the first leg support comprises an integrally formed support hinge part and a first leg support body, and the second leg support comprises an integrally formed triangular hinge part and a second leg support body;
one end of the first leg rod is hinged to one end of the leg rotating rod, the other end of the first leg rod is hinged to one end of the third leg rod, and one end of the seventh linkage rod is hinged to the middle of the first leg rod; one end of the second leg rod is hinged to the underframe structure, the other end of the second leg rod is hinged to one end of the fourth leg rod, the middle of the second leg rod is hinged to the middle of the third leg rod, and the other end of the fourth leg rod is hinged to the triangular hinge; the first leg support body is hinged to one end of the fifth leg rod and the middle of the fourth leg rod, and the hinged part of the first leg support body and the fifth leg rod and the hinged part of the first leg support body and the fourth leg rod are arranged at intervals; the other end of the leg part fifth rod is hinged to one end of a leg part seventh rod, the other end of the leg part seventh rod is hinged to one end of the leg part front rod, and the middle part of the leg part seventh rod is hinged to the triangular hinged part; one end of the leg part sixth rod is hinged to the other end of the leg part third rod, the other end of the leg part sixth rod is hinged to the middle of the leg part seventh rod, the middle of the leg part sixth rod is hinged to the middle of the leg part fourth rod, and the hinge position of the leg part seventh rod and the leg part sixth rod and the hinge position of the leg part seventh rod and the triangular hinge part are arranged at intervals; one end of the leg part eighth rod is hinged to the triangular hinged part, and the other end of the leg part eighth rod is hinged to the middle part of the leg part front rod.
8. The sofa frame of claim 1, wherein the sofa frame further comprises: the underframe structure comprises a front beam, a middle frame, a rear beam and a mounting frame; one end of the sixth linkage rod is hinged to the mounting frame, one end of the first linkage rod is hinged to the mounting frame, one end of the fifth linkage rod is hinged to the mounting frame, the front beam is connected to the middle of the seventh linkage rod, the middle frame is connected to the middle of the first linkage plate, and the rear beam is connected to one end of the second linkage plate.
9. The sofa frame according to claim 8, wherein the sofa frame further comprises: the driving device comprises a telescopic rod and a driving motor, the telescopic rod is in driving connection with the driving motor, and the driving motor is used for driving the telescopic rod to stretch; the front beam and the rear beam are both provided with a lug support, the telescopic rod is hinged with the lug support of the front beam, and the driving motor is hinged with the lug support of the rear beam.
10. The sofa frame according to claim 8, wherein the sofa frame further comprises: the mounting bracket is provided with a first limiting lug used for limiting the first linkage rod and a second limiting lug used for limiting the fifth linkage rod, and the first limiting lug and the second limiting lug are positioned on the same side of the mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625851.3U CN210008761U (en) | 2019-04-30 | 2019-04-30 | Sofa frame with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625851.3U CN210008761U (en) | 2019-04-30 | 2019-04-30 | Sofa frame with improved structure |
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| Publication Number | Publication Date |
|---|---|
| CN210008761U true CN210008761U (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625851.3U Active CN210008761U (en) | 2019-04-30 | 2019-04-30 | Sofa frame with improved structure |
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| Country | Link |
|---|---|
| CN (1) | CN210008761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114869090A (en) * | 2022-05-06 | 2022-08-09 | 东莞市瑞豪家具制造有限公司 | Structure improved chair frame |
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2019
- 2019-04-30 CN CN201920625851.3U patent/CN210008761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114869090A (en) * | 2022-05-06 | 2022-08-09 | 东莞市瑞豪家具制造有限公司 | Structure improved chair frame |
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Effective date of registration: 20230221 Address after: 511300 North side of Shisan Road, Shangtang Village, Shitan Town, Zengcheng District, Guangzhou City, Guangdong Province (plant B2) 103 Patentee after: Guangdong Jieke Smart Home Co.,Ltd. Address before: 523000 No.8, Wangyuan Road, Yanwu village, Dalingshan Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN JACKWELL HARDWARE Co.,Ltd. |
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