CN114451730A - Ergonomic sofa bed - Google Patents
Ergonomic sofa bed Download PDFInfo
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- CN114451730A CN114451730A CN202111524814.1A CN202111524814A CN114451730A CN 114451730 A CN114451730 A CN 114451730A CN 202111524814 A CN202111524814 A CN 202111524814A CN 114451730 A CN114451730 A CN 114451730A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 210000002414 leg Anatomy 0.000 claims description 28
- 210000000689 upper leg Anatomy 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000000284 resting effect Effects 0.000 abstract 1
- 210000001015 abdomen Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000036544 posture Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 244000309466 calf Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C17/00—Sofas; Couches; Beds
- A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
- A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention provides an ergonomic sofa bed, which solves the technical problems that the existing sofa bed is complex in structure and heavy in weight and cannot adjust the angle of a backrest in a segmented mode. The adjacent frames are hinged. The back of the frame forms a linkage structure through the transmission rod and the connecting sleeve, and the transmission rod is in clearance fit with the connecting sleeve. And a driving mechanism is arranged below the hip frame and used for driving each frame to overturn. The back of the leg frame is provided with a connecting rod mechanism for supporting the folding of the leg frame. The backrest angle adjusting device is simple in structure, low in processing cost, light in weight and convenient to carry, achieves sectional change of the angle of the backrest through the single driving mechanism, is more suitable for being used as a tool for resting when a human body is tired, and can be widely applied to the technical field of furniture design.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to an ergonomic sofa bed.
Background
With the development of society, various seats and bedding conforming to the postures of human bodies are developed at present. The functions are mostly fixed postures, and are generally limited to functional sofas, seats or simple beds. Although the furniture can well meet daily requirements of people, the defects of large floor area, inconvenience in movement and the like are gradually shown after the furniture is purchased and matched. Particularly, in the face of increasingly high housing prices, a family of rented houses is in large use, the requirement of portability and multiple purposes cannot be met by purchasing fixed furniture with a single function, and the fixed furniture is high in value and difficult to popularize.
Therefore, novel furniture such as sofa bed appears in the market, although the design concept appears early, the design concept is really emerging in recent years, and meanwhile, technicians also gradually explore products which are more in line with the requirements of users.
Chinese patent CN103405064A discloses a splicing electric sofa bed, which comprises a steel frame bed body with a mattress at the upper end, and a control switch; the steel frame bed body comprises a bed frame, a backrest part, a support frame part and a cushion part; the backrest part and the support frame part are respectively hinged on the bedstead in an opposite way; the other end of the support frame part is hinged with a cushion part, and two sides of the other end of the cushion part are movably connected with the bed frame through connecting rods; the bottom ends of the backrest part and the support frame part are respectively provided with a lifting support, the lifting supports are respectively movably connected with an electric push rod, the other ends of the electric push rods are respectively connected with a motor, and the motors are respectively connected to a control switch; the two sides of the bedstead are correspondingly provided with a plurality of mounting holes. The technical scheme provides the electric folding sofa bed, the folding deformation of the backrest part or the leg frame is realized through the link mechanism arranged on the back surface, so that the sofa bed is more suitable for the human body lying position, but the backrest part is not folded in a segmented manner, and actually, according to the human engineering analysis, the most comfortable angles of the head, the shoulders and the waist of a person are not consistent, so that the improvement is needed.
Chinese patent CN213487977U discloses a tilting device for a folding bed, which comprises an adjusting bed body and a lower frame assembly fixedly arranged below the adjusting bed body, wherein the adjusting bed body comprises a back plate and a fixing plate; the back plate is rotatably connected with the fixed plate through a hinge; the lower frame assembly is fixedly connected with the fixed plate; the lower frame component is provided with a tilting device, and the tilting device comprises a first motor bracket component, a second motor bracket component and a connecting rod component. The bed body of the folding bed in the technical scheme can be wholly inclined under the action of the connecting rod below, so that the angle is increased on the basis of the original lifting angle of the back of the bed body. The comfort is increased to a certain extent, but the angle of the backrest of the upper half body still cannot be adjusted in a segmented manner, and the overall structure is also complex, so that the total weight is increased, the maintenance is not convenient, and the carrying is also facilitated.
Further, the technical scheme analysis in the field of similar mechanical structures can be referred. Wherein, the nursing bed of medical instrument technical field generally can carry out the gesture and adjust, it is similar with sofa bed structure function in essence, specifically chinese patent CN112263416A discloses a multi-functional nursing bed of electric control, the head board can tilt up under the drive of head board electric putter, lift patient's head and shoulder, head board and truck board can tilt up certain angle under the effect of truck board electric putter, lift patient's back, thigh board, shank board and sole can tilt down in the effect of low limbs drive assembly, help patient accomplish action exercises such as raising legs, bend the knee and raising the foot, the remote controller replaces manual control head board electric putter, truck board electric putter and low limbs drive assembly. Also for example, chinese patent CN112076041A discloses a nursing bed with waist adjusting function, which comprises a bed frame, a waist and abdomen adjusting component, a back lifting mechanism and a bed plate mechanism; the bed board mechanism comprises a head pillow board, a back supporting board, a waist supporting board, a hip supporting board, a leg supporting board and a foot supporting board; a headrest electric push rod of the back lifting mechanism is hinged on the back supporting plate, the end part of a push rod of the headrest electric push rod is hinged with the head part pillow plate, a waist and back electric push rod is hinged on the bedstead, and the end part of a push rod of the waist and back electric push rod is hinged with the back supporting plate; the waist and abdomen adjusting component comprises a waist and abdomen adjusting electric push rod, the waist and abdomen adjusting electric push rod is fixed in the bed frame, the end part of the waist and abdomen adjusting electric push rod is aligned with the waist supporting plate, and the bed frame is provided with an adjusting notch for the waist supporting plate to swing in a limited angle corresponding to the position of the waist supporting plate. Refer to two kinds of technical scheme's above-mentioned concrete embodiment and can discover, all through the extra actuating mechanism who adds, the first body bed board multi-angle regulation has been realized, accord with human comfortable demand more, but further analysis discovers, this kind of structure is used for the medical instrument field that the price is expensive, it is complicated to do its reason because of the structure, drive unit is more, it is high whether to lead to the cost, it is great also to have the dead weight simultaneously, inconvenient carrying scheduling problem, it is corresponding not applicable to daily family between two parties, consequently, still need a simple structure, and more accord with ergonomic's sofa bed.
Disclosure of Invention
The invention aims to solve the technical defects and provide the electric sofa bed which is simple in structure, convenient to carry and maintain and more in line with the human engineering.
Therefore, the invention provides an ergonomic sofa bed, the main body of which is a multi-frame hinged structure and sequentially comprises a head and neck frame, a plurality of upper body frames, a hip frame and a plurality of leg frames; the adjacent frames are hinged;
the back of the sofa bed is also provided with a driving mechanism which comprises at least one group of first driving mechanisms and at least one group of second driving mechanisms; the first driving mechanism comprises a connecting sleeve and a transmission rod which are vertically arranged on the back surface of each upper body frame; the upper half body frame is fixedly connected with the connecting sleeve; the transmission rod is arranged in the connecting sleeve, and the transmission rod and the connecting sleeve form a sliding structure; two ends of the transmission rod are respectively provided with a shaft sleeve and a shaft support; two adjacent transmission rods are hinged with the shaft support through the shaft sleeve, and the side length of the shaft support is larger than the inner diameter of the connecting sleeve; the length of each transmission rod is greater than that of the corresponding mounting frame; the transmission rod is in clearance fit with the connecting sleeve; the back of the head and neck frame is provided with a limit structure, and the tail end of the transmission rod of the adjacent upper body frame is lapped on the limit structure;
a power unit of the first driving mechanism and a power unit of the second driving mechanism are arranged below the hip frame and respectively comprise a first electric push rod and a second electric push rod; the fixed end of the first electric push rod is connected with the hip frame through an adjusting screw rod, and the movable end of the first electric push rod is hinged with the transmission rod of the adjacent upper body frame;
the second driving mechanism comprises a connecting rod mechanism, the connecting rod mechanism is installed on the back of the leg frame, the fixed end of the second electric push rod is connected with the hip frame through an adjusting lead screw, and the movable end of the second electric push rod is connected with the connecting rod mechanism and used for driving the leg frame to be folded.
Preferably, the main body of the transmission rod is a square pipe body structure, and the connecting sleeve is a square connecting sleeve; the transverse side face of the transmission rod is in contact with the inner wall of the connecting sleeve, and a movable gap is reserved between the vertical side face and the inner wall of the connecting sleeve.
Preferably, the device also comprises a main frame body, wherein the main frame body is of a rectangular frame structure; the hip frame is arranged on the upper end face of the main frame body and fixedly connected with the main frame body, and the head and neck frame, the upper half body frame and the leg frame are all lapped on the upper end face of the main frame body in a storage state.
Preferably, the adjacent frames are hinged through hinges, the main body of each frame is a frame structure formed by splicing square pipes, and a plurality of strip plates are fixed on the upper end face of each frame in parallel.
Preferably, the upper body frame comprises a shoulder-back frame and a waist frame; the shoulder and back frame is hinged with the head and neck frame; the waist frame is hinged to the hip frame.
Preferably, the leg frame comprises a thigh frame and a shank frame; the frame at the hinged part of the thigh frame and the shank frame is processed into an oblique angle structure.
Preferably, the linkage mechanism comprises a first link and a second link; one end of the first connecting rod is hinged with the movable end of the second electric push rod, and the other end of the first connecting rod is hinged with the second connecting rod; one end of the second connecting rod is hinged with the shank frame, and the other end of the second connecting rod is provided with a pulley.
Preferably, the movable end of the second electric push rod is provided with a guide groove, and the back of the thigh frame is hinged with a sliding block or a pin shaft and is arranged in the guide groove to form a sliding structure.
Preferably, the first driving mechanisms are arranged on the back surface of the frame symmetrically along the central line; the second driving mechanisms are arranged on the back of the frame along the center line.
Preferably, the electric push rod further comprises a control system, and the control system is electrically connected with the first electric push rod and the second electric push rod; the control system further comprises a remote controller or an operation panel for inputting the control signal.
The invention has the beneficial effects that:
(1) the invention has simple structure, low processing cost and convenient production, and is convenient to carry due to smaller mass.
(2) The invention mainly adopts the principle of human engineering to research, realizes the sectional change of the angle of the back backrest through a single driving mechanism, and is more suitable for being used as a tool for rest when a human body is tired.
Drawings
FIG. 1 is a plan view showing a state of a lying bed according to embodiment 1 of the present invention;
FIG. 2 is a bottom view of a lying bed according to embodiment 1 of the present invention;
FIG. 3 is a left side view of a state of a seat in accordance with embodiment 1 of the present invention;
FIG. 4 is a right side view of a state of a seat in accordance with embodiment 1 of the present invention;
FIG. 5 is a perspective view showing a state of a seat in accordance with embodiment 1 of the present invention;
fig. 6 is a schematic view of a head and neck frame structure in embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a shoulder-back frame according to embodiment 1 of the present invention;
fig. 8 is a schematic view of a waist frame structure in embodiment 1 of the present invention;
FIG. 9 is a schematic view of a hip frame structure in embodiment 1 of the present invention;
fig. 10 is a schematic view of a thigh frame structure according to embodiment 1 of the present invention;
FIG. 11 is a schematic view of a lower leg frame structure in embodiment 1 of the present invention;
FIG. 12 is a schematic view showing a structure of a stent according to embodiment 1 of the present invention;
FIG. 13 is a schematic view of a leg structure according to embodiment 1 of the present invention;
fig. 14 is a schematic structural view of a first transmission rod in embodiment 1 of the present invention;
fig. 15 is a schematic structural view of a second transmission rod according to embodiment 1 of the present invention;
fig. 16 is a schematic structural view of a transmission connecting sleeve in embodiment 1 of the present invention;
FIG. 17 is a schematic view showing the connection relationship of the leg frames in embodiment 1 of the present invention;
fig. 18 is a perspective view of double row splicing in embodiment 1 of the present invention;
fig. 19 is a rear side view of a state of a double-row split lying bed according to embodiment 2 of the present invention;
the labels in the figure are: 1. the device comprises a head-neck frame, 2 a shoulder-back frame, 3 a waist frame, 4a hip frame, 5 a thigh frame, 6a shank frame, 7 a hinge, 8 a first transmission rod, 9 a second transmission rod, 10 a first electric push rod, 11 a second electric push rod, 12 a first adjusting screw rod, 13 a transmission connecting sleeve, 14 a second adjusting screw rod, 15 a bracket, 16a support leg, 17 a main frame body, 101 a frame, 102 a buckle sleeve, 103 a bed plate, 104 a baffle plate, 201 a first connecting sleeve, 301 a second connecting sleeve, 401 a first fixing seat, 402 a second push rod mounting seat, 403 a first push rod mounting seat, 404 a second fixing seat, 501 a guide seat, 601 a support lug, 801 a first shaft support seat, 802 a first pipe body, 803 a screw connecting piece, 804 a screw, 901 a second shaft support seat, 902 a second pipe body, 903 a second shaft sleeve, 1301. the connecting sleeve, 1302, the guide rod, 1303, the connecting shaft support, 1601, the flange, 1602, the pipe body, 1603, the pulley.
Detailed Description
The invention is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the invention. The method used in the invention is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.
Example 1
As shown in fig. 1-5, an ergonomic sofa bed has a multi-frame hinged structure, and comprises a head and neck frame 1, a plurality of upper body frames, a hip frame 4 and a plurality of leg frames in sequence. Wherein, in order to adapt to the different angles of the shoulders and the waist when the person is in the semi-lying posture, the preferable upper body frame comprises a shoulder-back frame 2 and a waist frame 3. Each frame is hinged in turn by hinges 7. As shown in the figure, the front end of the shoulder-back frame 2 is hinged with the head-neck frame 1, and the rear end is hinged with the waist frame 3; the rear end of the waist frame 3 is hinged to the hip frame 4.
Preferably, the main body of each frame is a frame structure spliced by square pipes, and a plurality of strip plates are fixed on the upper end face in parallel. Taking the head and neck frame 1 as an example, as shown in fig. 6, a frame 101 formed by welding four square aluminum alloy tubes is used as a main body component, two pairs of buckle sleeves 102 are fixed on two sides of the upper end surface of the main body component, and a strip-shaped bed board 103 is inserted into each pair of buckle sleeves 102.
The driving mechanism for driving the folding is arranged on the back of the sofa bed and comprises a first driving mechanism and a second driving mechanism. In this embodiment, a single driving mechanism is taken as an example, and each driving mechanism is only provided with one group. The first driving mechanism comprises a connecting sleeve and a transmission rod which are vertically arranged on the back of each upper body frame. The upper half body frame is fixedly connected with the connecting sleeve, a transmission rod is arranged in the connecting sleeve, and the transmission rod and the connecting sleeve form a sliding mechanism. Furthermore, the back of each frame is welded with a reinforcing beam along the vertical direction, so that the stability of the structure is enhanced, and an installation position is provided for the connecting sleeves. As shown in fig. 1 to 5 and 7, two first connecting sleeves 201 are provided on the back surface of the frame 2, and form a sliding mechanism with the first transmission rod 8. As shown in fig. 14, the first transmission rod 8 includes a first shaft support 801, a first pipe 802, a screw connector 803, and a screw 804 in sequence. Preferably, the first pipe 802 is a square pipe, and the end of the square pipe is provided with a screw 804 through a screw connector 803, so as to form a plug structure. As shown in fig. 6, a limiting structure, specifically, a baffle plate 104 is disposed on the back of the head and neck frame 1, so that the screw 804 of the first transmission rod 8 is overlapped with the baffle plate 104, and when the head and neck frame 1 needs to be rotated, the first transmission rod 8 extends out under the limitation of the first connecting sleeve 201, and the baffle plate 104 is pushed by the screw 804, so that the head and neck frame 1 is turned over along the hinge rotation shaft; further, the contact distance can be changed by adjusting the amount of protrusion of the screw 804. As shown in fig. 1 to 5 and 8, a second connecting sleeve 301 is disposed on the back of the lumbar frame 3, and forms a sliding structure with the second transmission rod 9 therein. As shown in fig. 15, the second transmission rod 9 comprises a second shaft support 901, a second tubular body 902 and a second shaft sleeve 903. Further, the second shaft sleeve 903 and the first shaft support 801 form a hinge structure through a pin. In order to ensure that the first transmission rod 8 and the second transmission rod 9 can push the frame to turn in sections, the first shaft support 801 and the second shaft support 901 are both arranged outside the connecting sleeves, the radial dimension of the first shaft support and the second shaft support is greater than the inner diameter of the connecting sleeves, and the length of each transmission rod is greater than the length of the corresponding mounting frame, namely the length of the first transmission rod 8 is greater than the vertical length of the shoulder-back frame 2; the length of the second transmission rod 9 is greater than the vertical length of the waist frame 3. If the connecting sleeve and the transmission rod are in a sliding structure in close fit, the situation of motion interference can occur, so that the transmission rod cannot slide, and the transmission rod and the connecting sleeve are in clearance fit; preferably, on the basis that the main body of the transmission rod is of a square pipe body structure, the first and second connection sleeves are square connection sleeves, the transverse side surface of the transmission rod is in contact with the inner wall of the connection sleeves, the motion stability is ensured, and a movable gap is reserved between the vertical side surface and the inner wall of the connection sleeves.
A power unit of a first driving mechanism and a power unit of a second driving mechanism are arranged below the hip frame 4 and respectively comprise a first electric push rod 10 and a second electric push rod 11; as shown in the figure, in order to save space, the two power units are arranged in a parallel and staggered mode, and the installation positions of the two power units are close to the center line, so that the transmission structure is guaranteed to be stressed relatively evenly. As shown in fig. 9, the first fixing seat 401 and the second fixing seat 404 are installed on the left and right sides of the left and right lower end surfaces of the hip frame 4, and are used for fixedly connecting the hip frame 4 with an external installation site. The specific fixing seat is of a folded edge structure, and the folded edge is provided with a mounting through hole. The first and second push rod attachment seats 403 and 402 are welded to the rear surface of the hip frame 4. The fixed end of the first electric putter 10 is connected to the first putter mounting base 403 through the first adjusting screw 12, and the fixed end of the second electric putter 11 is connected to the second putter mounting base 402 through the second adjusting screw 14. In this way, in the first driving mechanism, the movable end of the first electric push rod 10 is hinged with the second shaft support 901 of the second transmission rod 9, i.e. a complete upper body frame movement mechanism is formed.
The second drive mechanism comprises a linkage mechanism mounted on the back of the leg frame; preferably, the leg frame comprises a thigh frame 5 and a calf frame 6. According to the bending direction of the human leg joint, the leg frame is required to be protruded outwards when being folded, so that as shown in the combined drawings of 3-5 and 10-11, the frame at the hinged part of the thigh frame 5 and the shank frame 6 is required to be processed into an oblique angle structure, so that the frame can rotate relative to the hinge rotating shaft and form an included angle. Further, the link mechanism includes a first link and a second link. As shown in fig. 12, the first link is designed as a triangular bracket 15, and the upper part is hinged with the movable end of the second electric push rod 11 through a first shaft sleeve. As shown in fig. 2, 5 and 13, the second link is designed as an H-shaped leg 16, and the upper part of the tube 1602 thereof is hinged with the support lug 601 installed on the back of the lower leg frame 6, and the structure is shown in fig. 11; a flange 1601 is arranged in the middle of the pipe body 1602 and is hinged with two ends of the lower part of the bracket 15; a pulley 1603 is also mounted to the end of the tube 1602.
In order to keep the thigh frame 5 normally turned over when the push rod moves and avoid an unstable structure, a transmission connecting sleeve 13 is arranged at the movable end of the second electric push rod 11, and the second electric push rod 11 is connected with the support 15 through the transmission connecting sleeve 13. As shown in fig. 16, the transmission connecting sleeve 13 includes a connecting sleeve 1301, a guide rod 1302, and a connecting shaft support 1303. Wherein, the connecting sleeve 1301 is fixed with the movable end of the second electric push rod 11; as shown in fig. 10, the back of the thigh frame 5 is provided with the guide seat 501 and the pin shaft is installed, the middle of the guide rod 1302 is processed with a long kidney-shaped guide groove, the pin shaft of the guide seat 501 is installed in the guide groove to form a sliding fit structure, which can play a role in limiting, and in combination with the connection relation diagram shown in fig. 17, it can be known that when the extended length of the second electric push rod 11 is enough to slide the pin shaft to the end of the guide groove, the extended length of the transmission connecting sleeve 13 relative to the guide seat 501 is limited, and further, under the condition that the side lengths of the mechanism are fixed, the second electric push rod 11 extends any length, the position of the corresponding link mechanism is also uniquely determined, and the stability of the leg frame is ensured.
Preferably, the embodiment of the present invention further includes a main frame 17, where the main frame 17 has a rectangular frame structure, specifically, a wooden frame. The hip frame 4 is provided on the upper end surface of the main frame 17 and is fixedly connected to the main frame 17, and the head and neck frame 1, the shoulder and back frame 2, the waist frame 3, the thigh frame 5, and the calf frame 6 are all lapped on the upper end surface of the main frame 17 in the storage state (lying bed state). In the using process, as shown in fig. 18, two groups of sofa beds of the invention can be used in a transverse splicing mode, and a user can lie on the middle line position to separately adjust the leg frames on the basis of correspondingly realizing synchronous adjustment of the upper body frame, so that the two legs can lie at different angles, and the comfort level is increased.
Preferably, the embodiment of the invention further comprises a control system, wherein the control system is electrically connected with the first electric push rod and the second electric push rod and is used for controlling the extension amount of the electric push rods. The control system also comprises a remote controller, and a user sends a control signal to the control system through the remote controller so as to adjust the posture of the sofa bed, namely the turning angle of each frame.
Working process
Folding process: when the second shaft support 901 of the second transmission rod 9 contacts the second connecting sleeve 301 of the waist frame 3, the angle between the waist frame 3 and the hip frame 4 is changed. Meanwhile, the second transmission rod 9 triggers the first transmission rod 8 to act, when the first shaft support 801 of the first transmission rod 8 contacts the first connecting rod sleeve 201 of the shoulder-back frame 2, the shoulder-back frame 2 and the waist frame 3 change in angle, the first transmission rod 8 pushes the baffle 104 of the head-neck frame 1, and the head-neck frame 1 changes in angle accordingly. The other path is that the second electric push rod 11 starts to act to drive the transmission connecting sleeve 13 to act, after the tail end of the guide groove of the transmission connecting sleeve 13 is contacted with the pin shaft of the thigh frame 5, the hip frame 4 and the thigh frame 5 are pushed to change the angle, and then the calf frame 6 changes along with the self gravity and the position of the thigh frame 5. Meanwhile, the transmission connecting sleeve 13 pushes the support 15 to drive the supporting leg 16 to contact the ground, so that the effect of supporting the lower leg frame 6 is achieved.
The lying process comprises the following steps: when the remote controller sends a contraction instruction, one path of the electromagnetic push rod 10 starts to contract, when the first transmission rod 8 is separated from the baffle 104 of the head and neck frame 1, the head and neck frame 1 and the shoulder and back frame 2 are restored to be parallel and level, the first shaft support 801 of the first transmission rod 8 is separated from the contact with the first connecting rod sleeve 201 of the shoulder and back frame 2, the shoulder and back frame 2 and the waist frame 3 are gradually restored to be parallel and level, the second transmission rod 9 acts the same, and the waist frame 3 and the hip frame 4 are gradually restored to be parallel and level. The other path of the second electric push rod 11 begins to shrink, the transmission connecting sleeve 13 drives the supporting leg support 15 to shrink towards the direction of the second electric push rod 11, the supporting leg 16 is separated from the ground to be in contact, and the thigh frame 5 and the hip frame 4 are gradually leveled.
When the sofa bed is idle, the sofa bed can be vertically placed, the occupied area is small, when the sofa bed is needed, the sofa bed can be used after being horizontally placed, if the sofa bed is adjusted to the sofa state, only a matched remote controller needs to be pressed, and the sofa bed is convenient and practical.
Example 2
In this embodiment, on the basis of the above embodiment, the increase of the overall rated service weight is considered, the stress balance of each transmission component is maintained, and the situation of deformation and clamping stagnation is avoided, so that the driving mechanisms on the back of the frame are rearranged, a layout mode of double first driving mechanisms is adopted, as shown in fig. 19, two groups of first driving mechanisms are symmetrically arranged on the back of the frame of a single bed body along the center line of the bed body, and corresponding second driving mechanisms can be arranged along the center line, so that the situation that the stress of each connection or transmission component is uneven under the condition of deviating from the center line in embodiment 1 can be improved, the stress deformation of positions such as a transmission rod, a connection sleeve, a hinge and the like during heavy use is avoided, and the service life of the movable component is effectively prolonged; meanwhile, the second driving mechanism is arranged along the center line, so that the stress condition of the connecting rod mechanism is improved.
In a corresponding control system, two groups of first driving mechanisms of the same bed body adopt a synchronous control strategy.
In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (10)
1. An ergonomic sofa bed is a multi-frame hinged structure and is characterized by sequentially comprising a head and neck frame, a plurality of upper body frames, a hip frame and a plurality of leg frames; the adjacent frames are hinged;
the back of the sofa bed is also provided with a driving mechanism which comprises at least one group of first driving mechanisms and at least one group of second driving mechanisms; the first driving mechanism comprises a connecting sleeve and a transmission rod which are vertically arranged on the back surface of each upper body frame; the upper half body frame is fixedly connected with the connecting sleeve; the transmission rod is arranged in the connecting sleeve, and the transmission rod and the connecting sleeve form a sliding structure; two ends of the transmission rod are respectively provided with a shaft sleeve and a shaft support; two adjacent transmission rods are hinged with the shaft support through the shaft sleeve, and the side length of the shaft support is larger than the inner diameter of the connecting sleeve; the length of each transmission rod is greater than that of the corresponding mounting frame; the transmission rod is in clearance fit with the connecting sleeve; the back of the head and neck frame is provided with a limit structure, and the tail end of the transmission rod of the adjacent upper body frame is lapped on the limit structure;
a power unit of the first driving mechanism and a power unit of the second driving mechanism are arranged below the hip frame and respectively comprise a first electric push rod and a second electric push rod; the fixed end of the first electric push rod is connected with the hip frame through an adjusting screw rod, and the movable end of the first electric push rod is hinged with the transmission rod of the adjacent upper body frame;
the second driving mechanism comprises a connecting rod mechanism, the connecting rod mechanism is installed on the back of the leg frame, the fixed end of the second electric push rod is connected with the hip frame through an adjusting lead screw, and the movable end of the second electric push rod is connected with the connecting rod mechanism and used for driving the leg frame to be folded.
2. The ergonomic sofa bed of claim 1, wherein the main body of the transmission rod is a square tube structure, and the connection sleeve is a square connection sleeve; the transverse side face of the transmission rod is in contact with the inner wall of the connecting sleeve, and a movable gap is reserved between the vertical side face and the inner wall of the connecting sleeve.
3. The ergonomic sofa bed of claim 1, further comprising a main frame, wherein the main frame is a rectangular frame structure; the hip frame is arranged on the upper end face of the main frame body and fixedly connected with the main frame body, and the head and neck frame, the upper half body frame and the leg frame are all lapped on the upper end face of the main frame body in a storage state.
4. The ergonomic sofa bed of claim 1, wherein adjacent frames are hinged by hinges, and each frame has a frame structure with a square tube assembly, and a plurality of strip plates are fixed on the upper end surface side by side.
5. The ergonomic sofa bed of claim 1, wherein the upper body frame comprises a shoulder-back frame and a lumbar frame; the shoulder and back frame is hinged with the head and neck frame; the waist frame is hinged to the hip frame.
6. The ergonomic sofa bed of claim 1, wherein the leg frames comprise a thigh frame and a shank frame; the frame at the hinged part of the thigh frame and the shank frame is processed into an oblique angle structure.
7. An ergonomic sofa bed according to claim 6, wherein the linkage mechanism comprises a first linkage and a second linkage; one end of the first connecting rod is hinged with the movable end of the second electric push rod, and the other end of the first connecting rod is hinged with the second connecting rod; one end of the second connecting rod is hinged with the shank frame, and the other end of the second connecting rod is provided with a pulley.
8. The ergonomic sofa bed of claim 7, wherein the movable end of the second electric push rod is provided with a guide slot, and the back of the thigh frame is hinged with a slide block or a pin shaft and installed in the guide slot to form a sliding structure.
9. The ergonomic sofa bed of claim 1, wherein the first driving mechanism comprises two sets of driving mechanisms symmetrically disposed along the center line on the back side of the frame; the second driving mechanisms are arranged on the back of the frame along the center line.
10. The ergonomic sofa bed of claim 1, further comprising a control system electrically connected to the first and second electric push rods; the control system further comprises a remote controller or an operation panel for inputting the control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524814.1A CN114451730A (en) | 2021-12-14 | 2021-12-14 | Ergonomic sofa bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524814.1A CN114451730A (en) | 2021-12-14 | 2021-12-14 | Ergonomic sofa bed |
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| Publication Number | Publication Date |
|---|---|
| CN114451730A true CN114451730A (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111524814.1A Pending CN114451730A (en) | 2021-12-14 | 2021-12-14 | Ergonomic sofa bed |
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| CN (1) | CN114451730A (en) |
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| CN214156800U (en) * | 2020-11-30 | 2021-09-10 | 明达光电(厦门)有限公司 | Adjustable bedstead |
| CN214433143U (en) * | 2021-01-28 | 2021-10-22 | 惠州市睿普斯林智能科技有限公司 | Sofa frame structure and sofa |
| CN214631210U (en) * | 2021-01-26 | 2021-11-09 | 广州朋客居品品牌管理有限公司 | Electric intelligent latex mattress |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070021646A (en) * | 2005-08-19 | 2007-02-23 | 정경채 | A bed with joint structure of human body |
| CN202234156U (en) * | 2011-09-29 | 2012-05-30 | 齐全智 | Electrically-driven lifting bedstead |
| CN103405064A (en) * | 2013-05-27 | 2013-11-27 | 天津市博泰金属制品有限公司 | Splicable electric sofa bed |
| CN209518600U (en) * | 2018-12-29 | 2019-10-22 | 东莞市捷科五金有限公司 | One kind, which leans against, can touch wall Folding sofa frame |
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| CN214631210U (en) * | 2021-01-26 | 2021-11-09 | 广州朋客居品品牌管理有限公司 | Electric intelligent latex mattress |
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