CN214433158U - Electric folding sofa bed - Google Patents
Electric folding sofa bed Download PDFInfo
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- CN214433158U CN214433158U CN202120395743.9U CN202120395743U CN214433158U CN 214433158 U CN214433158 U CN 214433158U CN 202120395743 U CN202120395743 U CN 202120395743U CN 214433158 U CN214433158 U CN 214433158U
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Abstract
The utility model belongs to the technical field of electronic folding sofa bed, concretely relates to electronic folding sofa bed. This electronic folding sofa bed includes: the sofa seat is internally provided with an accommodating cavity; the bed frame is accommodated in the accommodating cavity of the sofa seat when being folded and is in a bed state when being unfolded; and the driving device is used for driving the bed frame to be unfolded or folded. The utility model discloses an electronic folding sofa bed is through using the rocker as the transmission element of motor drive power, and the transmission effect of power and motion will be better than lever and connecting rod, simultaneously, the utility model discloses an adopt the same first rocker and the folding motion of opening of all movable frame that share bed frame that bear jointly of second rocker of buckling the pole form, can reduce the high requirement to the rocker bearing capacity when sofa bed is folding on the one hand to reduce the cost, on the other hand, the rocker subassembly can make whole sofa bed open the motion of in-process folding very steady, and the rotational speed of motor is unnecessary too high, thereby has prolonged the life of motor.
Description
Technical Field
The utility model belongs to the technical field of electronic folding sofa bed, concretely relates to electronic folding sofa bed.
Background
With the improvement of living standard, people pursue the travelling comfort of living more, and most families can purchase sofa beds, and when the sofa beds are used for sand and guests are in night, the sofa beds are converted into beds, so that the expenditure is saved, the occupied space is reduced, and the space utilization rate is increased.
The folding sofa bed generally comprises a sofa seat, and an accommodating space is arranged in the sofa seat. The bed frame is positioned in the accommodating space of the sofa seat when being in a folded state and is used as the sofa seat; when the bed frame is in an open state, the bed is a sheet of bed. Most of the sofa beds in the prior art need to be manually folded by users, the folding process is complex, the sofa beds are not convenient for the users to operate, the labor intensity of the users is improved, and the sofa beds in the prior art can not meet the use requirements of the users.
Although the prior art also adopts a motor as a driving source to carry out electric folding of the sofa bed, a single lever or a connecting rod is mostly adopted to transmit the driving force of the motor and is responsible for simultaneously driving the folding and unfolding actions of all the bed frames, and the design has the defects that: the single lever or connecting rod is responsible for the folding action of opening of all bed frames of drive simultaneously, not only needs to use the lever or connecting rod material that have higher bearing capacity, leads to the cost comparatively expensive, in the in-service use in addition, can inevitably appear the phenomenon that the folding motion of opening of sofa bed is steady inadequately, also has great to the performance requirement of motor simultaneously, can influence the life of motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric folding sofa bed which can replace the manual operation.
In order to solve the technical problem, the utility model provides an electronic folding sofa bed, include: the sofa seat is internally provided with an accommodating cavity; the bed frame is accommodated in the accommodating cavity of the sofa seat when being folded and is in a bed state when being unfolded; the driving device is used for driving the bed frame to be unfolded or folded; the bed frame comprises a head frame, a back frame, a hip frame, a leg frame and a back frame which are connected in series; one end of the head frame is hinged with the sofa seat, and the other end of the head frame is hinged with the back frame; the driving device comprises a rocker driving mechanism, a rocker assembly and a connecting rod mechanism which are respectively positioned at two sides of the bed frame; the rocker component is connected with the rocker driving mechanism, the back frame and the connecting rod mechanism; the connecting rod mechanism is linked with the back frame, the hip frame, the leg frame and the back frame; the rocker drive mechanism is adapted to push or pull the rocker assembly to open or fold the bed frame.
Further, the rocker drive mechanism includes: the slide rail is positioned on the side frame of the sofa seat and is arranged along the length direction of the bed frame; the sliding seat is connected with the lower end of the rocker component and is arranged on the sliding rail; and a sliding seat drive assembly; the sliding seat driving assembly drives the sliding seat to move towards the hip frame or the head frame along the sliding rail, and the rocker assembly is suitable for driving the bed frame to be unfolded or folded.
Furthermore, a pulley is arranged on the sliding seat and used for supporting the bed frame; when the sliding seat driving assembly drives the sliding seat to move along the sliding rail, the pulley is suitable for rolling on the side frame of the sofa seat.
Further, the sliding seat includes: the sliding block is arranged on the sliding rail; the first mounting plate is positioned on the inner side of the sliding block and used for mounting the rocker assembly; the second mounting plate is positioned on the outer side of the sliding block and used for mounting the pulley; and one end of the pulley shaft is fixedly connected with the first mounting plate, and the other end of the pulley shaft penetrates out of the second mounting plate to be provided with a pulley.
Furthermore, the driving device also comprises a synchronous rod; and two ends of the synchronizing rod are respectively connected with the two first mounting plates.
Furthermore, the rocker component comprises a first rocker, and two ends of the first rocker are respectively hinged with the sliding seat and the back frame of the bed frame; two ends of the second rocker are respectively hinged with the sliding seat and the back frame of the bed frame; the rod body of the second rocker is also connected with a connecting rod mechanism through a first connecting rod; the sliding seat is driven to move towards the side far away from or close to the head frame along the sliding rail, the first rocking bar and the second rocking bar are suitable for driving the head frame and the back frame in the bed frame to be opened or folded, and meanwhile, the second rocking bar drives the rest parts in the bed frame to be opened or folded through the connecting rod mechanism.
Furthermore, the second rocker is a bent rod and is of an approximately L-shaped structure; the link mechanism comprises a first link assembly linked with the back frame and the hip frame; the first link assembly includes: a second link and a third lever; wherein the second connecting rod is an L-shaped rod; two ends of the first connecting rod are respectively hinged with the bending part of the second rocker and the bending part of the second connecting rod; the middle part of the third lever is hinged on the hip frame; two ends of the second connecting rod are respectively hinged with the back frame and the head end of the third lever; the second rocker is driven to rotate anticlockwise or clockwise around a hinge point of the upper end of the second rocker and the back frame, and the back frame and the hip frame are driven to be opened or folded through the cooperation of the first connecting rod, the second connecting rod and the third lever.
Furthermore, the connecting rod mechanism also comprises a fourth connecting rod linked with the hip frame and the leg frame; two ends of the fourth connecting rod are respectively hinged with the tail end of the third lever and the leg frame; the tail end of the third lever is driven to rotate anticlockwise or clockwise around a hinge point of the third lever and the hip frame, and the hip frame and the leg frame are driven to be opened or folded through the fourth connecting rod.
Further, the backrest frame comprises a backrest part and a mounting part which are perpendicular to each other; the mounting part is provided with bed legs; the connecting rod mechanism also comprises a second connecting rod assembly which is linked with the leg frame and the bed legs; the second connecting rod assembly comprises a fifth lever, a sixth connecting rod and a seventh connecting rod; the fifth lever is an L-shaped lever, one end of the fifth lever is hinged with the middle part of the fourth connecting rod, and the other end of the fifth lever is hinged with the non-supporting end of the bed leg; one end of the sixth connecting rod is hinged with the leg frame, the other end of the sixth connecting rod is hinged with the seventh connecting rod, and the middle part of the sixth connecting rod is hinged with the bent part of the fifth lever; two ends of the seventh connecting rod are respectively hinged with the sixth connecting rod and the middle parts of the bed legs; when the fifth lever is driven to rotate anticlockwise or clockwise around the hinge point of the fifth lever and the sixth connecting rod, the leg frame and the bed legs are driven to be unfolded or folded through the cooperation of the sixth connecting rod and the seventh connecting rod.
Furthermore, the first rocker and the second rocker adopt the same bending rod; the end part of the first rocker positioned on the long side is hinged with the back frame, and the end part positioned on the short side is hinged with the sliding seat; the end part of the second rocker positioned on the long side is hinged with the sliding seat, and the end part of the second rocker positioned on the short side is hinged with the back frame; and the long sides of the first rocker and the second rocker are parallel to each other, and the short sides of the first rocker and the second rocker are parallel to each other, so that an approximate parallelogram structure is formed.
The utility model has the advantages that the electric folding sofa bed of the utility model can open the bed frame into the bed state through the driving device, or fold and store the bed frame into the containing cavity of the sofa seat, avoids the lever or the connecting rod used in the prior art, but uses the rocking rod as the transmission element of the motor driving force, the transmission effect of the force and the movement is better than the lever and the connecting rod, simultaneously, the utility model adopts the first rocking rod and the second rocking rod with the same bending rod shape to bear the folding and opening movement of all the movable frames sharing the bed frame, in particular, the first rocking rod is responsible for the folding and opening of the head frame and the back frame, the second rocking rod is mainly responsible for the folding and opening movement of the hip frame, the leg frame and the back frame, the advantage of the design is that on one hand, the high requirement on the bearing force of the rocking rod when the sofa bed is folded can be reduced, thereby the manufacturing cost is reduced, on the other hand, the first rocker and the second rocker jointly form a rocker assembly with an approximate parallelogram structure, so that the whole sofa bed can move very stably in the folding and unfolding processes, and the use experience effect is obviously better than that of the prior art in which a single lever or connecting rod is adopted; in addition, the two rocking bars bear and share the movement of the movable frame together, so that the rotating speed of the motor is not required to be too high when the sofa bed is folded and unfolded, and the service life of the motor is prolonged.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the electrically collapsible sofa bed of the present invention;
FIG. 2 is a schematic view of the driving device of the electric folding sofa bed of the present invention;
FIG. 3 is a schematic view showing the open state of the bed frame of the electric folding sofa bed of the present invention;
FIG. 4 is a schematic view of the folding state of the bed frame of the electric folding sofa bed;
FIG. 5 is a schematic view of the rocking bar driving mechanism of the electric folding sofa bed of the present invention;
FIG. 6 is a schematic view of the sliding seat of the rocking bar driving mechanism of the electric folding sofa bed of the present invention;
FIG. 7 is a schematic view of the electric folding sofa bed of the present invention during the opening process of the bed frame;
fig. 8 is a schematic view of the rocker assembly of the present invention for an electrically collapsible sofa bed.
In the figure:
a sofa seat 100;
a bed frame 200, a head frame 210, a back frame 220, a hip frame 230, a leg frame 240, a back frame 250, a backrest 251, a mounting portion 252, bed legs 253, wheels 254;
drive means 300, rocker drive mechanism 310, rocker assembly 320, linkage 330, synchronization rod 340;
the sliding mechanism comprises a sliding rail 311, a sliding seat 312, a pulley 3121, a sliding block 3122, a first mounting plate 3123, a first vertical plate 31231, a first transverse plate 31232, a second mounting plate 3124, a second vertical plate 31241, a second transverse plate 31242, a pulley shaft 3125, a sliding seat driving component 313 and a motor 3131;
a first rocking bar 321, a second rocking bar 322;
a first link assembly 331, a first link 3311, a second link 3312, a third lever 3313;
a fourth link 332;
a second linkage assembly 333, a fifth lever 3331, a sixth linkage 3332, a seventh linkage 3333;
and a reinforcing rib 400.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1, the present embodiment provides an electric folding sofa bed, comprising: a sofa seat 100 having an accommodating chamber therein; a bed frame 200 which is stored in the storage chamber of the sofa 100 when folded and is in a bed state when unfolded; a driving device 300 for driving the bed frame 200 to open or fold.
In this embodiment, the driving device 300 can drive the bed frame 200 to open into the bed state, or fold and store the bed frame 200 into the accommodating cavity of the sofa 100, which can replace the manual operation, and is simple and convenient.
As shown in fig. 2, 3 and 4, preferably, the bed frame 200 includes a head frame 210, a back frame 220, a hip frame 230, a leg frame 240 and a back frame 250 connected in series; one end of the head frame 210 is hinged with the sofa seat 100, and the other end is hinged with the back frame 220; the driving device 300 comprises a rocker driving mechanism 310, a rocker assembly 320 and a connecting rod mechanism 330 which are respectively positioned at two sides of the bed frame; wherein the rocker assembly 320 is connected to the rocker drive mechanism 310, the back frame 220, and the linkage 330; the link mechanism 330 is linked with the back frame 220, the hip frame 230, the leg frame 240 and the back frame 250; the rocker drive mechanism 310 is adapted to push or pull the rocker assembly 320 to open or fold the bed frame 200.
In this embodiment, one end of the head frame 210 may be hinged with the sofa 100. As shown in fig. 4, when the bed frame is folded, the head frame 210 and the back frame 220 are in a vertical state; the hip frame 230 is vertical to the back frame 220; the leg frame 240 is positioned above the back frame 220 and can be used as a seat of a sofa; the backrest frame 250 is perpendicular to the backrest frame 220 and can be used as a backrest.
In this embodiment, the rocker assembly 320 is connected to the rocker driving mechanism 310 and the back frame 220, and the rocker driving mechanism 310 can drive the rocker assembly 320 to open the head frame 210 and the back frame 220 in a horizontal state or fold the head frame and the back frame 220 in a vertical state.
In this embodiment, the number of the rocking bar driving mechanisms 310, the rocking bar assemblies 320 and the linkage mechanisms 330 is two, and the two rocking bar driving mechanisms, the rocking bar assemblies 320 and the linkage mechanisms 330 are respectively positioned at two sides of the bed frame 200, so that the stability in the operation process can be improved.
In the present embodiment, the rocker assembly 320 is connected to the rocker driving mechanism 310 and the link mechanism 330, and the link mechanism 330 may be installed at the sides of the back frame 220, the hip frame 230, the leg frame 240, and the back frame 250; the rocker driving mechanism 310 may unfold or fold the back frame 220, the hip frame 230, the leg frame 240, and the back frame 250 by driving the rocker assembly 320.
As shown in fig. 5, as a preferred embodiment of the present embodiment, the rocker driving mechanism 310 includes: a slide rail 311 disposed on the side frame of the sofa 100 and arranged along the length direction of the bed frame 200; a sliding seat 312 connected with the lower end of the rocker assembly 320 and installed on the sliding rail 311; and a shoe drive assembly 313; wherein the sliding seat driving assembly 313 drives the sliding seat 312 to move along the sliding rail 311 toward the hip frame 230 or the head frame 210, and the rocking bar assembly 320 is adapted to drive the bed frame 200 to open or fold.
In this embodiment, optionally, a pulley 3121 is further disposed on the sliding seat 312 for supporting the bed frame 200; the pulley 3121 is adapted to roll on the side frame of the sofa seat 100 when the sliding seat driving assembly 313 drives the sliding seat 312 to move along the sliding track 311.
In this embodiment, optionally, the sliding seat 312 includes: a slider 3122 mounted on the slide rail 311; a first mounting plate 3123 located inside the slider 3122 for mounting the rocker assembly 320; a second mounting plate 3124 located at an outer side of the slider 3122 for mounting the pulley 3121; one end of the pulley shaft 3125 is fixedly connected to the first mounting plate 3123, and the other end thereof penetrates through the second mounting plate 3124 to mount a pulley 3121.
In the present embodiment, the pulley 3121 may be a bearing; the weight of the bed frame 200 can be supported by the pulleys 3121, which can reduce the stress of the slide rails 311 and increase the bearing weight of the sofa; one end of the pulley shaft 3125 is fixedly connected with the first mounting plate 3123, and the other end penetrates through the second mounting plate 3124 and is installed with the pulley 3121, can promote bearing capacity and stability when the pulley 3121 walks.
In this embodiment, optionally, the driving device further includes a synchronization rod 340; the two ends of the synchronous rod 340 are respectively connected with the two first mounting plates 3123; the synchronization rod 340 can connect the two sliding seats 312 into a whole, and the pulleys 3121 on both sides of the whole are used to bear the weight of the bed frame 200 during folding or unfolding, thereby improving the load-bearing capacity and the overall stability.
In this embodiment, as an alternative embodiment of the sliding seat driving assembly 313, the sliding seat driving assembly 313 includes a motor 3131 and a screw rod located in the sliding rail 311; the sliding block 3122 is in threaded fit with the screw rod; the motor 3131 drives the screw rod to rotate, so as to drive the sliding block 3122 to move along the sliding rail 311 toward the hip frame 230 or the head frame 210.
As shown in fig. 6, in the present embodiment, as an alternative assembly manner of the first mounting plate 3123, the first mounting plate 3123 includes a first vertical plate 31231 and a first horizontal plate 31232 which are perpendicular to each other; wherein the first riser 31231 is inboard of the slide 3122 for mounting the rocker assembly 320; the first transverse plate 31232 is fixedly connected with the upper end surface of the sliding block 3122.
Further, the second mounting plate 3124 includes a second vertical plate 31241 and a second horizontal plate 31242 which are perpendicular to each other; the second vertical plate 31241 is located outside the sliding block 3122, one end of the pulley shaft 3125 is installed on the first vertical plate 31231, the other end is installed with a pulley 3121 through the second vertical plate 31241; the second transverse plate 31242 is fixedly connected with the lower end surface of the sliding block 3122.
In the present embodiment, the L-shaped design of the first mounting plate 3123 and the second mounting plate 3124 can reduce the overall installation space of the sliding seat 312, and enhance the overall stability.
As shown in fig. 7, preferably, the rocking bar assembly 320 includes a first rocking bar 321, both ends of which are respectively hinged with the sliding seat 312 and the back frame 220 of the bed frame 200; a second rocker 322, both ends of which are hinged with the sliding seat 312 and the back frame 220 of the bed frame 200 respectively; wherein the shaft of the second rocker 322 is also connected with the link mechanism 330 through the first connecting rod 3311; the sliding seat 312 is driven to move along the sliding rail 311 toward the side far away from or close to the head frame 210, the first rocking bar 321 and the second rocking bar 322 are adapted to drive the head frame 210 and the back frame 220 of the bed frame to open or fold, and at the same time, the second rocking bar 322 drives the rest of the bed frame 200 to open or fold through the link mechanism 330.
In the present embodiment, the first rocking bar 321 and the second rocking bar 322 are used to support the back frame 220 to lift and lower, so as to improve the stability and the carrying capacity.
In order to avoid mutual interference between the first rocking bar 321 and the second rocking bar 322 in the folded state, the first rocking bar 321 and the second rocking bar 322 are both bent bars and are in an approximately L-shaped structure; one end of the first link 3311 is hinged to the bent portion of the second rocker 322, and the other end is hinged to the link mechanism 330.
As shown in fig. 7 and 8, in the present embodiment, the first rocking bar 321 and the second rocking bar 322 are the same bent bar. The end part of the first rocker 321 positioned on the long side is hinged with the back frame 220, and the end part positioned on the short side is hinged with the sliding seat 312; the end part of the second rocker 322 positioned on the long side is hinged with the sliding seat 312, and the end part positioned on the short side is hinged with the back frame 220; and the long sides of the first rocker and the second rocker are parallel to each other, and the short sides of the first rocker and the second rocker are parallel to each other, so that an approximate parallelogram structure is formed.
Optionally, the length ratio of the long side to the short side can be adjusted according to installation requirements; in this embodiment, optionally, the length ratio of the long side to the short side is 4:1-3: 1; preferably, the length ratio of the long side to the short side may be 4:1, 3.5:1, 3: 1.
Optionally, the included angle between the long side and the short side can be adjusted according to the installation requirement; in this embodiment, optionally, an included angle between the long side and the short side is 120 ° to 140 °; preferably, the included angles between the long side and the short side are 120 °, 130 °, 133 ° and 140 °.
In order to improve the strength of the first and second rocking bars, a reinforcing rib 400 is arranged on the long side.
In this embodiment, the first rocking bar 321 and the second rocking bar 322 which are oppositely arranged can keep the back frame 220 in a horizontal state all the time in the process of opening or folding; one end of the head frame 210 is hinged to the sofa 100, and when the sliding seat 312 is driven to move toward the hip frame 230 or the head frame 210, the first rocking bar 321 and the second rocking bar 322 are adapted to lift or lower the back frame 220, so as to drive the head frame 210 to rotate counterclockwise or clockwise around the hinged point of the head frame 210 and the sofa 100, so as to reach a level or a perpendicular with the back frame 220.
As an alternative embodiment for driving the back frame 220 and the hip frame 230 to open or fold, as shown in fig. 7, the second rocking bar 322 is a bent bar; the link mechanism 330 includes a first link assembly 331 interlocked with the back frame 220 and the hip frame 230; the first link assembly 331 includes: a second link 3312 and a third lever 3313; wherein the second link 3312 is an L-shaped rod; and two ends of the first connecting rod 3311 are hinged to the bending part of the second rocker 322 and the bending part of the second connecting rod 3312, respectively; the middle part of the third lever 3313 is hinged on the hip frame 230; two ends of the second connecting rod 3312 are respectively hinged with the back frame 220 and the head end of the third lever 3313; the second rocking bar 322 is driven to rotate counterclockwise or clockwise around the hinge point of the upper end of the second rocking bar 322 and the back frame 220, and the back frame 220 and the hip frame 230 are driven to open or fold by the cooperation of the first connecting rod 3311, the second connecting rod 3312 and the third lever 3313.
In the present embodiment, the end of the short side of the second link 3312 is hinged to the hip frame 230; and the end of the long side of the second link 3312 is hinged to the head end of the third lever 3313.
As an alternative embodiment for driving the hip frame 230 and the leg frame 240 to open or fold, as shown in fig. 7, the link mechanism 330 further includes a fourth link 332 linked with the hip frame 230 and the leg frame 240; both ends of the fourth connecting rod 332 are hinged with the tail end of the third lever 3313 and the leg frame 240 respectively; the rear end of the third lever 3313 is driven to rotate counterclockwise or clockwise around the hinge point of the third lever 3313 and the hip frame 230, and the hip frame 230 and the leg frame 240 are driven to open or fold through the fourth link 332.
In this embodiment, the second rocking bar 322 is driven to rotate counterclockwise or clockwise around the hinge point between the upper end of the second rocking bar 322 and the back frame 220, i.e. the tail end of the third lever 3313 is driven to rotate counterclockwise or clockwise around the hinge point between the third lever 3313 and the hip frame 230 when the second connecting rod 3312 is driven to rotate clockwise or counterclockwise around the hinge point between the second connecting rod 3312 and the back frame 220.
In this embodiment, the backrest frame 250 includes a backrest portion 251 and a mounting portion 252 perpendicular to each other; the mounting part 252 is provided with bed legs 253; as shown in fig. 4, in the folded state, the backrest portion 251 is in the vertical state and the mounting portion 252 is in the horizontal state; as shown in fig. 3, in the open state of the bed frame, the backrest portion 251 is positioned below the leg frames 240 in a horizontal state, the mounting portion 252 is in a vertical state, and the legs 253 are supported on the floor.
As shown in fig. 7, in the present embodiment, as an alternative embodiment for unfolding or folding the leg frame 240 and the bed legs 253, the link mechanism 330 further includes a second link assembly 333 linked with the leg frame 240 and the bed legs 253; the second link assembly 333 includes a fifth lever 3331, a sixth link 3332, and a seventh link 3333; the fifth lever 3331 is an L-shaped lever, one end of which is hinged to the middle of the fourth link 332, and the other end of which is hinged to the non-supporting end of the leg 253; one end of the sixth connecting rod 3332 is hinged to the leg frame 240, the other end of the sixth connecting rod 3332 is hinged to the seventh connecting rod 3333, and the middle part of the sixth connecting rod 3332 is hinged to the bent part of the fifth lever 3331; two ends of the seventh connecting rod 3333 are respectively hinged with the sixth connecting rod 3332 and the middle part of the bed leg 253; when the fifth lever 3331 is driven to rotate counterclockwise or clockwise around the hinge point of the fifth lever 3331 and the sixth link 3332, the leg frame 240 and the bed legs 253 are unfolded or folded by the cooperation of the sixth link 3332 and the seventh link 3333.
In this embodiment, the end of the short side of the fifth lever 3331 is hinged to the non-supporting end of the leg 253; and the end of the long side of the fifth lever 3331 is hinged to the middle of the fourth link 332.
In this embodiment, the sliding seat 312 is driven to move away from or close to the head frame 210 along the sliding rail 311, the first rocking bar 321 and the second rocking bar 322 are adapted to drive the head frame 210 and the back frame 220 of the bed frame to open or fold, and simultaneously the second rocking bar 322 rotates counterclockwise or clockwise around the hinge point between the upper end of the second rocking bar 322 and the back frame 220, i.e. when the second connecting bar 3312 rotates clockwise or counterclockwise around the hinge point between the second connecting bar 3312 and the back frame 220, the rear end of the third lever 3313 rotates counterclockwise or clockwise around the hinge point between the third lever 3313 and the hip frame 230, i.e. the fifth lever 3331 rotates counterclockwise or clockwise around the hinge point between the fifth lever 3331 and the sixth connecting bar 3332, i.e. the rest of the bed frame 200 can be opened or folded.
In this embodiment, the support ends of the legs 253 may be further provided with wheels 254 to smoothly transition when the support ends of the legs 253 are not fully opened when they are in contact with the ground, so as to prevent incomplete opening or non-folding due to too much friction with the ground.
In summary, the driving device 300 of the electric folding sofa bed can drive the bed frame 200 to open into the bed state, or fold and store the bed frame 200 into the containing cavity of the sofa seat 100, avoiding the lever or the connecting rod used in the prior art, but using the rocking rod as the transmission element of the motor driving force, the transmission effect of the force and the movement is better than the lever and the connecting rod, meanwhile, the utility model adopts the first rocking rod 321 and the second rocking rod 322 with the same bending rod shape to jointly bear and share the folding and opening movement of all the movable frames of the bed frame 200, specifically, the first rocking rod 321 is responsible for the folding and opening of the head frame 210 and the back frame 220, the second rocking rod 322 is mainly responsible for the folding and opening movement of the hip frame 230, the leg frame 240 and the back frame 250, so the design has the advantage that on one hand, the high requirement on the bearing force of the rocking rod when the sofa bed is folded can be reduced, thereby reducing the manufacturing cost, on the other hand, the first rocking bar 321 and the second rocking bar 322 jointly form a rocking bar assembly 320 with an approximate parallelogram structure, so that the whole sofa bed can move very stably in the folding and unfolding processes, and the use experience effect is obviously better than that of the prior art adopting a single lever or connecting rod; in addition, the two rocking bars bear and share the movement of the movable frame together, so that the rotating speed of the motor is not required to be too high when the sofa bed is folded and unfolded, and the service life of the motor is prolonged.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an articulated connection.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An electrically powered collapsible sofa bed, comprising:
a sofa seat (100) provided with an accommodating cavity therein;
a bed frame (200) which is accommodated in the accommodation chamber of the sofa seat (100) when folded and is in a bed state when unfolded;
a driving device (300) for driving the bed frame (200) to open or fold;
the bed frame (200) comprises a head frame (210), a back frame (220), a hip frame (230), a leg frame (240) and a back frame (250) which are connected in series;
one end of the head frame (210) is hinged with the sofa seat (100), and the other end is hinged with the back frame (220);
the driving device (300) comprises a rocker driving mechanism (310), a rocker assembly (320) and a connecting rod mechanism (330) which are respectively positioned at two sides of the bed frame; wherein
The rocker assembly (320) is connected with the rocker driving mechanism (310), the back frame (220) and the connecting rod mechanism (330);
the connecting rod mechanism (330) is linked with the back frame (220), the hip frame (230), the leg frame (240) and the back frame (250);
the rocker drive mechanism (310) is adapted to push or pull the rocker assembly (320) to open or fold the bed frame (200).
2. An electrically powered collapsible sofa bed according to claim 1,
the rocker drive mechanism (310) comprises:
the slide rail (311) is positioned on the side frame of the sofa seat (100) and is arranged along the length direction of the bed frame (200);
the sliding seat (312) is connected with the lower end of the rocker component (320) and is arranged on the sliding rail (311); and
a shoe drive assembly (313); wherein
The sliding seat driving assembly (313) drives the sliding seat (312) to move towards the hip frame (230) or the head frame (210) along the sliding rail (311), and the rocker assembly (320) is suitable for driving the bed frame (200) to be unfolded or folded.
3. An electrically powered collapsible sofa bed according to claim 2,
the sliding seat (312) is also provided with a pulley (3121) for supporting the bed frame (200);
the pulley (3121) is adapted to roll on the side frame of the sofa seat (100) when the sliding seat driving assembly (313) drives the sliding seat (312) to move along the sliding rail (311).
4. An electrically powered collapsible sofa bed according to claim 3,
the sliding seat (312) comprises:
a slider (3122) mounted on the slide rail (311);
a first mounting plate (3123) located inside the slider (3122) for mounting the rocker assembly (320);
a second mounting plate (3124) located at an outer side of the slider (3122) for mounting the pulley (3121);
one end of the pulley shaft (3125) is fixedly connected with the first mounting plate (3123), and the other end of the pulley shaft penetrates through the second mounting plate (3124) to be provided with a pulley (3121).
5. An electrically powered collapsible sofa bed according to claim 4,
the driving device also comprises a synchronous rod (340);
two ends of the synchronous rod (340) are respectively connected with the two first mounting plates (3123).
6. An electrically powered collapsible sofa bed according to claim 2,
the rocker assembly (320) includes:
two ends of the first rocker (321) are respectively hinged with the sliding seat (312) and the back frame (220) of the bed frame (200);
two ends of the second rocker (322) are respectively hinged with the sliding seat (312) and the back frame (220) of the bed frame (200); wherein
The shaft of the second rocker (322) is also connected with a link mechanism (330) through a first connecting rod (3311);
the sliding seat (312) is driven to move towards the side far away from or close to the head frame (210) along the sliding rail (311), the first rocker (321) and the second rocker (322) are suitable for driving the head frame (210) and the back frame (220) in the bed frame to open or fold, and meanwhile the second rocker (322) drives the rest part in the bed frame (200) to open or fold through the link mechanism (330).
7. An electrically powered collapsible sofa bed according to claim 6,
the second rocker (322) is a bent rod and is of an approximately L-shaped structure;
the link mechanism (330) comprises a first link component (331) linked with the back frame (220) and the hip frame (230);
the first link assembly (331) includes: a second link (3312) and a third lever (3313); wherein
The second connecting rod (3312) is an L-shaped rod; and
two ends of the first connecting rod (3311) are respectively hinged with the bending part of the second rocker (322) and the bending part of the second connecting rod (3312);
the middle part of the third lever (3313) is hinged on the hip frame (230);
two ends of the second connecting rod (3312) are respectively hinged with the back frame (220) and the head end of the third lever (3313);
the second rocker (322) is driven to rotate anticlockwise or clockwise around a hinge point of the upper end of the second rocker (322) and the back frame (220), and the back frame (220) and the hip frame (230) are driven to be opened or folded through the cooperation of the first connecting rod (3311), the second connecting rod (3312) and the third lever (3313).
8. An electrically powered collapsible sofa bed according to claim 7,
the linkage mechanism (330) further comprises a fourth link (332) linked with the hip frame (230) and the leg frame (240);
two ends of the fourth connecting rod (332) are respectively hinged with the tail end of the third lever (3313) and the leg frame (240);
the tail end of the third lever (3313) is driven to rotate anticlockwise or clockwise around a hinge point of the third lever (3313) and the hip frame (230), and the hip frame (230) and the leg frame (240) are driven to be opened or folded through the fourth connecting rod (332).
9. An electrically powered collapsible sofa bed according to claim 8,
the backrest frame (250) comprises a backrest part (251) and a mounting part (252) which are perpendicular to each other;
the mounting part (252) is provided with bed legs (253);
the link mechanism (330) further comprises a second link assembly (333) linked with the leg frame (240) and the bed legs (253);
the second linkage assembly (333) includes a fifth lever (3331), a sixth link (3332), and a seventh link (3333);
the fifth lever (3331) is an L-shaped rod, one end of the fifth lever is hinged with the middle part of the fourth connecting rod (332), and the other end of the fifth lever is hinged with the non-supporting end of the bed leg (253);
one end of the sixth connecting rod (3332) is hinged with the leg frame (240), the other end of the sixth connecting rod is hinged with the seventh connecting rod (3333), and the middle part of the sixth connecting rod is hinged with the bent part of the fifth lever (3331);
both ends of the seventh connecting rod (3333) are respectively hinged with the sixth connecting rod (3332) and the middle parts of the bed legs (253);
when the fifth lever (3331) is driven to rotate around the hinge point of the fifth lever (3331) and the sixth connecting rod (3332) anticlockwise or clockwise, the leg frame (240) and the bed legs (253) are driven to be unfolded or folded through the cooperation of the sixth connecting rod (3332) and the seventh connecting rod (3333).
10. An electrically powered collapsible sofa bed according to claim 6,
the first rocker (321) and the second rocker (322) adopt the same bending rod; wherein
The end part of the first rocker (321) positioned on the long side is hinged with the back frame (220), and the end part positioned on the short side is hinged with the sliding seat (312);
the end part of the second rocker (322) positioned on the long side is hinged with the sliding seat (312), and the end part positioned on the short side is hinged with the back frame (220); and
the long sides of the first rocker and the second rocker are parallel to each other, and the short sides of the first rocker and the second rocker are parallel to each other, so that an approximate parallelogram structure is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120395743.9U CN214433158U (en) | 2021-02-22 | 2021-02-22 | Electric folding sofa bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120395743.9U CN214433158U (en) | 2021-02-22 | 2021-02-22 | Electric folding sofa bed |
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| CN214433158U true CN214433158U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971432A (en) * | 2021-02-22 | 2021-06-18 | 江苏慕林智能电器有限公司 | Electric folding sofa bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971432A (en) * | 2021-02-22 | 2021-06-18 | 江苏慕林智能电器有限公司 | Electric folding sofa bed |
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Address after: 213001 Bangshang Road, cuibei Industrial Park, Henglin Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Mulin Zhizao Technology Co.,Ltd. Address before: 213001 Bangshang Road, cuibei Industrial Park, Henglin Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU MULIN INTELLIGENT ELECTRIC CO.,LTD. |
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