CN115088979B - Multi-connecting-rod angle-adjusting sofa bed - Google Patents
Multi-connecting-rod angle-adjusting sofa bed Download PDFInfo
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- CN115088979B CN115088979B CN202210558207.5A CN202210558207A CN115088979B CN 115088979 B CN115088979 B CN 115088979B CN 202210558207 A CN202210558207 A CN 202210558207A CN 115088979 B CN115088979 B CN 115088979B
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- rod
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- rods
- angle
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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
- A47C17/162—Seating furniture changeable to beds by tilting or pivoting the back-rest with adjustable back-rest
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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
- A47C17/163—Seating furniture changeable to beds by tilting or pivoting the back-rest and a foot-rest
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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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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a multi-connecting rod angle adjusting sofa bed in the technical field of angle adjusting sofa beds, which comprises two symmetrical mounting rods, wherein the upper end and the lower end side wall of each mounting rod are respectively provided with an angle shaft in a rotating way, the outer wall of each angle shaft is fixedly provided with a cross rod, one end of the cross rod at the upper end, which is far away from the angle shaft, is fixedly provided with a pulling rod, the outer wall of the pulling rod is rotationally provided with a backrest rod, one end of the cross rod at the lower end, which is far away from the angle shaft, is fixedly provided with a middle rotating shaft, the outer wall of the middle rotating shaft is rotationally provided with an auxiliary backrest rod, the auxiliary backrest rod is rotationally arranged on the side wall of the backrest rod through a pin shaft, and the auxiliary backrest rod is parallel to the cross rod at the upper end; the invention effectively solves the problems that the existing living room sofa needs to be taken into consideration for long-time sitting, a tea table is usually placed at the front end of the sofa for taking and placing things conveniently, and collision is easy to occur when leg supports ascend, so that the sofa needs to be subjected to backward movement treatment, and the convenience is poor.
Description
Technical Field
The invention relates to the technical field of angle-adjusting sofa bed, in particular to a multi-connecting-rod angle-adjusting sofa bed.
Background
The sofa bed refers to furniture capable of being used as a sofa and a bed. Modern living room arrangement is advocated and concise, multifunctional furniture becomes more and more a popular choice, and sofa bed is one of them. In small living rooms, a sofa bed is necessary to meet occasional visitor living needs.
Typically, the sofa bed can be placed in a living room or study room to serve as a seat; the sofa bed is unfolded at night when a guest comes, and the bed is just a bed after the sleeping bed is laid. In a common house like a three-room two-hall, the sofa bed can also be outside the guest sleeping bed to help the host cope with occasional visiting of a plurality of guests. It is taught to select a suitable sofa bed. The sofa bed has two functions of sitting and lying, is firm and durable, is beautiful, and has ensured material and technology.
The existing angle-adjustable sofa bed mostly adopts a hinge to hinge a backrest and a cushion framework, then the cushion framework is hinged with a leg support framework through the hinge, the cushion framework is used as a fixed part, and the leg support framework and the backrest framework are driven by power equipment to rotate around the cushion framework, so that certain angle adjustment is performed; however, the existing living room sofa needs to be taken into consideration for long-time sitting, and for taking and placing convenience of things, a tea table is placed at the front end of the sofa generally, so that collision is very easy to occur when a leg support ascends, and therefore the sofa needs to be subjected to backward movement treatment, and convenience is poor.
Based on the above, the invention designs a multi-link angle adjusting sofa bed to solve the above problems.
Disclosure of Invention
The invention aims to provide a multi-link angle adjusting sofa bed, which aims to solve the problems that the prior angle adjusting sofa bed proposed in the background technology mostly adopts a hinge to hinge a backrest and a cushion framework, then uses the hinge to hinge the cushion framework and a leg support framework, uses the cushion framework as a fixed part, and adopts power equipment to drive the leg support framework and the backrest framework to rotate around the cushion framework so as to adjust a certain angle; however, the existing living room sofa needs to be taken into consideration for long-time sitting, and for taking and placing convenience of things, a tea table is placed at the front end of the sofa generally, so that collision is very easy to occur when a leg support ascends, and the sofa needs to be subjected to backward movement treatment, so that the problem of poor convenience is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a many connecting rods angle modulation sofa bed, includes two symmetrical installation poles, every installation pole upper end and lower extreme lateral wall all rotate and are provided with the angle axle, every angle axle outer wall is fixed to be provided with the cross pole, and the one end that the angle axle was kept away from to the cross pole is fixed to be provided with the pulling pole, the pulling pole outer wall rotates and is provided with the back side pole, and the one end that the angle axle was kept away from to the cross pole of lower extreme is fixed to be provided with well pivot, it is provided with vice back pole to rotate on the well pivot outer wall, vice back pole rotates through the round pin axle and sets up on back side pole lateral wall, vice back pole is parallel with the cross pole of upper end, well pivot outer wall still rotates and is provided with the parallel plate of back side pole, the one end that the round pin axle was kept away from to set up on the cross pole lateral wall of upper end, two fixedly between the back side pole is provided with a plurality of back horizontal poles that are used for supporting back filler, two the pulling pole outer wall is provided with can follow the cushion mechanism that the back side pole is moved, every installation pole lateral wall is provided with and makes back drive mechanism and inclines to incline behind the angle rotation.
As a further scheme of the invention, the cushion mechanism comprises two cushion end rods which are symmetrically arranged, wherein each group of cushion end rods is provided with a vertical long round groove, the inner wall of each long round groove is sleeved with a pulling rod, the outer side wall of each cushion end rod is transversely provided with a transverse sliding oblong hole, the angle shaft at the lower end is sleeved on the inner wall of each transverse sliding oblong hole, a plurality of cushion cross rods for supporting sofa fillers are fixedly arranged between the two cushion end rods, and one end of each cushion end rod, which is far away from the pulling rod, is provided with a leg support mechanism for lifting when the cushion mechanism moves backwards.
As a further scheme of the invention, the leg support mechanism comprises a hinge shaft, the hinge shaft is rotatably arranged on the side wall of one end of the cushion end rod far away from the pulling rod, a plurality of leg support plates which are used for supporting the leg support filler and are arranged in an array mode are rotatably arranged on the outer wall of the hinge shaft, one end of each leg support plate far away from the hinge shaft is fixedly provided with the same synchronous rod, the two outermost leg support plate side walls are provided with leg support oblong holes, the side wall of the upper end of each leg support oblong hole is rotatably provided with a retraction rod, the side wall of each retraction rod is rotatably provided with a fixing rod, and the fixing rods are fixedly arranged on the side wall of the installation rod.
As a further scheme of the invention, the driving mechanism comprises bevel gears which are coaxially and fixedly arranged at the end heads of the angle shafts respectively, bevel gear rods are meshed with the outer ends of the two bevel gears at the same end, the two bevel gear rods are rotatably arranged on the side walls of the mounting rods respectively, the lower ends of the bevel gear rods are in transmission connection with a speed changer, the speed changer is fixedly arranged on the side walls of the mounting rods, and the lower ends of the speed changer are in transmission connection with a power device with a locking function.
As a further scheme of the invention, the power device comprises two driving shafts, the two driving shafts are respectively connected to the lower ends of the two speed changers in a transmission way, worm gears are coaxially and fixedly arranged on the outer walls of the driving shafts, worm sleeves are meshed with the outer walls of the two worm gears, the two worm sleeves are coaxially and fixedly provided with the same worm shaft, the worm shaft is rotatably arranged on the side wall of the mounting rod through a bracket, and the worm shaft is connected to the existing power motor in a transmission way.
As a further scheme of the invention, the lower end of the mounting rod is vertically and slidably provided with a sliding sleeve which is fixedly arranged on the ground, the side wall of the sliding sleeve is fixedly provided with a thread bush, the thread bush is sleeved on the outer wall of the lower end of the driving shaft, and the outer wall of the lower end of the driving shaft is in threaded connection with the thread bush through a thread tooth arranged on the outer wall of the lower end of the driving shaft.
As a further scheme of the invention, the inner wall of the horizontal sliding slotted hole adopts an antifriction coating with small friction force, and the service life of the equipment can be prolonged.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the upper cross rod and the lower cross rod are driven to rotate oppositely through the driving mechanism, so that the backrest side rod moves backwards and tilts, then the parallel plate, the two cross rods, the auxiliary backrest rod and the hinged section of the backrest side rod form a parallelogram, the backrest side rod moves backwards and tilts upwards, the pulling rod originally positioned at the upper end of the long round groove moves upwards, the cushion end rod is switched to be in a horizontal state from a state with a lower rear end and a higher front end, the backrest and the cushion are switched to be in a pure flat state with the same horizontal height through the thickness difference of the backrest filler and the cushion filler, so that the comfort is improved, the seat end rod moves backwards and expands, the leg support mechanism is also driven to move backwards and lift, the leg support plate is lifted, the comfort is improved, and the problem that the leg support mechanism directly lifts up to collide with a front or the table is avoided.
2. According to the invention, the cushion end rod moves back and forth, the hinge shaft is driven to move back and forth, so that the axis of the hinge shaft is vertically overlapped and misplaced with the axis of the retraction rod, and the long round hole of the leg support slides outside the retraction rod, so that the leg support is unfolded and folded, the leg support can be effectively supported when a person lies down, and the leg support can be folded to the lower end of a sofa when the person sits at an end, so that the problem of pollution of the leg support is avoided.
3. According to the invention, the transmission is driven to rotate through the power device, so that the bevel gear rod is driven to rotate, and the bevel gear rod is driven to rotate, so that the two bevel gears are driven to synchronously and reversely rotate, and the angle shaft and the cross rod are driven to reversely rotate at the same speed, so that the equipment is more stable to operate, and the problem of fatigue damage caused by overlarge stress of the angle shaft due to rotation of a single angle shaft is avoided.
4. The existing motor drives the worm shaft to rotate, the worm shaft rotates to drive the worm sleeve to rotate, the worm gears on two sides of the worm sleeve are driven to synchronously rotate, and the worm gears rotate to drive the driving shaft to rotate, so that the speed changer rotates, the angle of the cross rod can be steplessly adjusted, and the cross rod is locked at any time when the motor does not work, and the problem that the angle adjustment of the existing equipment is inconvenient is effectively solved.
5. According to the invention, the sliding sleeve can be driven to slide on the mounting rod through the rotation of the driving shaft in the threaded sleeve, so that the height of equipment is changed, the height is reduced when the equipment is in a flat lying state, and the sofa bed height is increased when the equipment is in a sitting switching state, so that the feet of a person can automatically land, the comfort is improved, the sofa height is reduced when the equipment is in a flat lying state, the falling risk is very likely to occur because the sofa does not have a shielding object, and the use risk of the equipment is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the side-up view of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic side plan view partially in cross-section of the overall structure of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;
fig. 6 is an enlarged view of the structure of fig. 4 at C according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
the seat cushion comprises a mounting rod 10, an angle shaft 11, a cross rod 12, a backrest side rod 13, a middle rotating shaft 14, a secondary backrest rod 15, a parallel plate 16, a backrest cross rod 17, a pulling rod 18, a seat cushion end rod 20, a long round slot 21, a transverse long round hole 22, a seat cushion cross rod 23, a hinge shaft 25, a leg supporting plate 26, a synchronizing rod 27, a leg supporting long round hole 28, a retracting rod 29, a fixing rod 30, a bevel gear 33, a bevel gear rod 34, a speed changer 35, a driving shaft 40, a worm gear 41, a worm sleeve 42, a worm shaft 43, a sliding sleeve 45 and a thread sleeve 46.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a many connecting rods angle modulation sofa bed, including two symmetrical installation pole 10, the upper end and the lower extreme lateral wall of every installation pole 10 all rotate and are provided with angle axle 11, every angle axle 11 outer wall is fixed and is provided with cross pole 12, the cross pole 12 of upper end is kept away from the one end of angle axle 11 and is fixedly provided with pull pole 18, pull pole 18 outer wall rotates and is provided with back rest pole 13, the one end that the cross pole 12 of lower extreme kept away from angle axle 11 is fixedly provided with well pivot 14, well pivot 14 is last to rotate and be provided with vice back rest pole 15, vice back rest pole 15 rotates through the round pin axle and is set up on back rest pole 13 lateral wall, vice back rest pole 15 is parallel with upper end 12, well pivot 14 outer wall still rotates and is provided with parallel plate 16 of back rest pole 13, parallel plate 16 is kept away from the cross pole 12 lateral wall of upper end through the round pin axle, fixedly provided with a plurality of back rest poles 17 for supporting back rest filler between two back rest poles 13, two pull pole 18 outer walls are provided with can follow back rest pole 13 back rest mechanism, every installation pole 10 is used for making and drive back rest pole 11 rotate and incline mechanism and make and incline behind the side drive the side arm 13 and rotate; the cushion mechanism comprises two cushion end rods 20 which are symmetrically arranged, a vertical long round groove 21 is formed in the side wall of each set of cushion end rods 20, a pulling rod 18 is sleeved on the inner wall of the long round groove 21, a horizontal long round hole 22 is transversely formed in the outer side wall of each cushion end rod 20, an angle shaft 11 at the lower end is sleeved on the inner wall of the horizontal long round hole 22, a plurality of cushion cross rods 23 for supporting sofa fillers are fixedly arranged between the two cushion end rods 20, and a leg support mechanism for lifting when the cushion mechanism moves backwards is arranged at one end of the two cushion end rods 20 away from the pulling rod 18;
when the sofa is used, the device is assembled, as shown in fig. 1, the device is rotated anticlockwise for ninety degrees, the direction is distinguished by adopting the sitting posture of a human body, the upper end of the device is seen from the left to the right of the figure, the right end of the device is seen from the bottom to the top of the figure, the description is described by adopting the equipment direction, and the description is omitted, and the device is a sofa inner frame component, is not used for further displaying a sofa covering piece and is used for further displaying a filling support of the sofa;
when the invention is used, the driving mechanism works to drive the angle shaft 11 to rotate (the upper angle shaft 11 at the right end is rotated clockwise when seen from the right side of the equipment, the lower angle shaft 11 at the right end is rotated anticlockwise when seen from the figure 1), so that the cross rod 12 at the upper end is rotated clockwise, the pull rod 18 moves backwards and rises, the cross rod 12 at the lower end is rotated anticlockwise, the middle rotating shaft 14 moves backwards and descends, the hinging point of the lower end of the backrest side rod 13 and the pull rod 18 moves backwards and rises, the hinging section of the parallel plate 16, the two cross rods 12 and the hinging section of the auxiliary backrest rod 15 and the backrest side rod 13 form a parallelogram, the auxiliary backrest rod 15 moves backwards and inclines, the lower end of the pull rod 18 moves upwards to a certain extent, the backrest is inclined in an angle, then the pulling rod 18 moves backwards and rises to drive the cushion end rod 20 to move backwards, so that the whole cushion mechanism moves backwards, in the process (as shown in figures 1 and 2, the human body gravity is acted, in the process of moving backwards the cushion end rod 20, namely, the horizontal long round hole 22 passes through the middle balance point when sliding on the angle shaft 11, wherein the pulling rod 18 is positioned at the uppermost end of the long round groove 21, when the sofa is not toppled, the front end of the cushion end rod 20 is low and the rear end is high, thereby leading people to land on feet, improving the safety of people and simultaneously keeping the comfort of human body), the rear end of the cushion end rod 20 is low and the front end is high, leading people to receive better parcel when toppling and lying, improving the comfort of the sofa, and finally leading the backrest side rod 13 to be in a horizontal state along with the continuous operation of the driving mechanism, and a certain rise occurs at the height, thereby lifting the cushion end rod 20 integrally, keeping the cushion end rod 20 and the backrest side rod 13 in a horizontal coplanar state (the thickness of the supporting filler of the backrest is smaller than that of the cushion filler, and the backrest can be made thin to save the distance between the backrest and the back side wall body of the sofa because the cushion is significantly larger than the backrest due to the sinking of the cushion), so as to form a complete and pure bed state; the backrest cross rod 17 and the cushion cross rod 23 can effectively support the position of the sofa support filler, so that the sofa is prevented from collapsing, the leg support mechanism is also moved backwards and unfolded in the backward moving process of the cushion mechanism, the use area of the sofa bed is increased, the comfort is improved, and the problem that the leg support mechanism is directly lifted up to collide with a tea table or a table in front is avoided;
according to the invention, the angle shaft 11 is driven to rotate by the driving mechanism, so that the upper cross rod 12 and the lower cross rod 12 are oppositely rotated, the backrest side rod 13 is in a backward moving and tilting process, then the parallel plate 16, the two cross rods 12, the auxiliary backrest rod 15 and the hinged section of the backrest side rod 13 form a parallelogram, the backrest side rod 13 moves backward and tilts and lifts, the pulling rod 18 originally positioned at the upper end of the long round groove 21 moves upwards, the cushion end rod 20 is switched to be in a horizontal state from a state with the lower front end of the rear end, the backrest and the cushion are switched to be in a pure flat state with the same horizontal height by the thickness difference of the backrest filler and the cushion filler, so that the comfort is improved, the leg support mechanism is driven to move backward and unfold by the backward cushion end rod 20, the leg support plate is lifted, the leg support is improved, and the comfort is improved, and the problem that the leg support mechanism directly lifts up and collides with the front or the table is avoided.
As a further scheme of the invention, the leg support mechanism comprises a hinge shaft 25, wherein the hinge shaft 25 is rotatably arranged on the side wall of one end of a cushion end rod 20 far away from a pulling rod 18, a plurality of leg support plates 26 which are arranged in an array manner and used for supporting leg support fillers are rotatably arranged on the outer wall of the hinge shaft 25, one end of each leg support plate 26 far away from the hinge shaft 25 is fixedly provided with the same synchronous rod 27, the side walls of the two outermost leg support plates 26 are provided with leg support oblong holes 28, the side wall of the upper end of each leg support oblong hole 28 is rotatably provided with a retraction rod 29, the side wall of the retraction rod 29 is rotatably provided with a fixing rod 30, and the fixing rod 30 is fixedly arranged on the side wall of the installation rod 10;
when the invention is used, as the fixed rod 30 is fixed, when the upper end of the leg supporting plate 26 moves backwards along with the hinge shaft 25 and the cushion end rod 20, the retracting rod 29 slides forwards in the leg supporting oblong hole 28, so that the leg supporting plate 26 is lifted to be close to the cushion end rod 20, in the process, the upper end of the leg supporting plate 26 moves backwards, the leg supporting plate 26 is pulled to move backwards, the leg supporting oblong hole 28 on the side wall of the leg supporting plate 26 is acted by the retracting rod 29 at a fixed height position and rotates anticlockwise around the hinge shaft 25 (seen from the right end of the equipment), so that the leg supporting plates 26 on two sides are lifted to be close to the horizontal, and are acted by two groups of supporting points of the hinge shaft 25 and the retracting rod 29, the leg support is characterized in that the leg support is provided with a hinge shaft 25, a receiving and releasing rod 29, a hinge shaft 25 and a receiving and releasing rod 29, wherein the hinge shaft 25 is connected with the receiving and releasing rod 29, the receiving and releasing rod 29 is connected with the hinge shaft 25, the receiving and releasing rod 29 is connected with the receiving and releasing rod 29, the receiving and releasing rod 29 is connected with the hinge shaft 25, the receiving and releasing rod 29 is connected with the receiving and releasing rod 29, and the receiving and releasing rod is connected with the receiving and releasing rod 29;
according to the invention, the cushion end rod 20 moves back and forth, the hinge shaft 25 is driven to move back and forth, so that the axis of the hinge shaft 25 and the axis of the retraction rod 29 are vertically overlapped and misplaced, the long round hole 28 of the leg support slides outside the retraction rod 29, so that the leg support is unfolded and folded, the legs can be effectively supported when a person lies down, and the leg support can be folded to the lower end of a sofa when the person sits down, so that the problem of pollution of the leg support is avoided.
As a further scheme of the invention, the driving mechanism comprises bevel gears 33 which are coaxially and fixedly arranged at the end of the angle shaft 11 respectively, bevel gear bars 34 are meshed with the outer ends of the two bevel gears 33 at the same end, the two bevel gear bars 34 are respectively and rotatably arranged on the side wall of the mounting rod 10, a speed changer 35 is connected with the lower end of the bevel gear bars 34 in a transmission way, the speed changer 35 is fixedly arranged on the side wall of the mounting rod 10, and a power device with a locking function is connected with the lower end of the speed changer 35 in a transmission way;
the power device works to drive the speed changer 35 to rotate, thereby driving the bevel gear rod 34 to rotate, and the bevel gear rod 34 rotates to drive the two bevel gears 33 to synchronously and reversely rotate, so that the angle shaft 11 and the cross rod 12 reversely rotate at the same speed, thereby enabling the equipment to operate more stably, and avoiding the problem that the angle shaft 11 is stressed too much and fatigued and damaged due to the rotation of the single angle shaft 11.
As a further scheme of the invention, the power device comprises two driving shafts 40, the two driving shafts 40 are respectively connected to the lower ends of the two speed changers 35 in a transmission way, worm gears 41 are coaxially and fixedly arranged on the outer walls of the driving shafts 40, worm sleeves 42 are meshed with the outer walls of the two worm gears 41, the two worm sleeves 42 are coaxially and fixedly provided with the same worm shaft 43, the worm shaft 43 is rotatably arranged on the side wall of the mounting rod 10 through a bracket, and the worm shaft 43 is connected to the existing power motor in a transmission way;
the existing motor drives the worm shaft 43 to rotate, the worm shaft 43 rotates to drive the worm sleeve 42 to rotate, the worm gear 41 on two sides is driven by the worm sleeve 42 to rotate synchronously, the worm gear 41 rotates to drive the driving shaft 40 to rotate, so that the speed changer 35 rotates, the angle of the cross rod 12 can be adjusted steplessly, and the cross rod is locked at any time when the motor does not work, so that the problem that the angle adjustment of the existing equipment is inconvenient is effectively solved.
As a further scheme of the invention, the lower end of the installation rod 10 is vertically and slidably provided with a sliding sleeve 45 which is fixedly arranged on the ground, the side wall of the sliding sleeve 45 is fixedly provided with a thread bush 46, the thread bush 46 is sleeved on the outer wall of the lower end of the driving shaft 40, and the outer wall of the lower end of the driving shaft 40 is in threaded connection with the thread bush 46 through an opened thread;
according to the invention, the sliding sleeve 45 can be driven to slide on the mounting rod 10 by rotating the driving shaft 40 in the threaded sleeve 46, so that the height of equipment is changed, the height is reduced when the equipment is in a flat lying state, and the sofa bed height is increased when the equipment is in a sitting switching state, so that the feet of a person can land automatically, the comfort is improved, and the sofa height is reduced when the equipment is in a flat lying state, and the falling risk is very likely to occur because the sofa does not have shielding objects, so that the use risk of the equipment is reduced.
As a further proposal of the invention, the inner wall of the transverse sliding oblong hole 22 adopts an antifriction coating with small friction force, which can prolong the service life of the equipment.
Claims (6)
1. A multi-link angle adjustment sofa bed comprising two symmetrical mounting bars (10), characterized in that: each installation rod (10) upper end and lower extreme lateral wall all rotate and are provided with angle axle (11), every angle axle (11) outer wall is fixed to be provided with cross rod (12), the upper end cross rod (12) keep away from angle axle (11) one end fixedly provided with pull rod (18), pull rod (18) outer wall rotates and is provided with back rest bar (13), the one end that angle axle (11) was kept away from to cross rod (12) of lower extreme is fixedly provided with transfer shaft (14), the last rotation of transfer shaft (14) outer wall is provided with vice back rest bar (15), vice back rest bar (15) are through the round pin axle rotation setting on back rest bar (13) lateral wall, vice back rest bar (15) are parallel with cross rod (12) of upper end, transfer shaft (14) outer wall still rotates and is provided with parallel with back rest bar (13), one end that well pivot (16) kept away from in on cross rod (12) lateral wall of upper end through the round pin axle rotation setting, two back rest bars (13) are provided with back rest bar (13) between the back rest bar (13) are provided with the fixed back rest bar (13) and are used for the back rest bar (13) to take turns to fill, back rest bar (13) are provided with the cushion respectively, the side wall of each mounting rod (10) is provided with a driving mechanism for driving the angle shaft (11) to rotate so that the backrest side rod (13) moves backwards and tilts;
the cushion mechanism comprises two cushion end rods (20) which are symmetrically arranged, vertical long round grooves (21) are formed in the side walls of the cushion end rods (20), the inner walls of the long round grooves (21) are sleeved with pulling rods (18), transverse long round holes (22) are transversely formed in the outer side walls of the cushion end rods (20), the lower ends of the transverse long round holes are sleeved with angle shafts (11), the inner walls of the transverse long round holes (22) are sleeved with the angle shafts, a plurality of cushion cross rods (23) used for supporting sofa fillers are fixedly arranged between the cushion end rods (20), and leg supporting mechanisms used for lifting when the cushion mechanism moves backwards are arranged at one ends of the cushion end rods (20) away from the pulling rods (18).
2. The multi-link angle adjustment sofa bed according to claim 1, wherein: the leg holds in palm mechanism and includes hinge pin (25), hinge pin (25) rotate and set up one end lateral wall of keeping away from pulling pole (18) at cushion end pole (20), hinge pin (25) outer wall rotates and is provided with a plurality of leg support boards (26) that are used for bearing leg to hold in the palm the array arrangement setting of filler, every leg support board (26) are kept away from the one end of hinge pin (25) and are fixedly provided with same synchronizing lever (27), two in the outside leg support board (26) lateral wall has been seted up leg and has been held in the palm slotted hole (28), leg holds in the palm slotted hole (28) upper end lateral wall rotation and is provided with receive and release pole (29), receive and release pole (29) lateral wall rotation is provided with dead lever (30), dead lever (30) are fixed to be set up on installation pole (10) lateral wall.
3. A multi-link angle adjustment sofa bed according to claim 2, characterized in that: the driving mechanism comprises bevel gears (33) which are coaxially and fixedly arranged at the end heads of the angle shafts (11), bevel gear rods (34) are meshed with the outer ends of the bevel gears (33) at the same end, the two bevel gear rods (34) are respectively and rotatably arranged on the side walls of the mounting rods (10), a transmission (35) is connected with the lower ends of the bevel gear rods (34) in a transmission mode, the transmission (35) is fixedly arranged on the side walls of the mounting rods (10), and a power device with a locking function is connected with the lower ends of the transmission in a transmission mode.
4. A multi-link angle adjustment sofa bed according to claim 3, characterized in that: the power device comprises two driving shafts (40), the two driving shafts (40) are respectively connected to the lower ends of two speed changers (35) in a transmission mode, worm gears (41) are coaxially and fixedly arranged on the outer walls of the driving shafts (40), worm sleeves (42) are meshed with the outer walls of the worm gears (41), the same worm shaft (43) is coaxially and fixedly arranged on the two worm sleeves (42), the worm shaft (43) is rotatably arranged on the side wall of an installation rod (10) through a support, and the worm shaft (43) is connected to an existing power motor in a transmission mode.
5. The multi-link angle adjustment sofa bed according to claim 4, wherein: the vertical slip of installation pole (10) lower extreme is provided with sliding sleeve (45) that are used for fixed setting to subaerial, sliding sleeve (45) lateral wall is fixed to be provided with thread bush (46), thread bush (46) cover is established at drive shaft (40) lower extreme outer wall, drive shaft (40) lower extreme outer wall is through the thread tooth and thread bush (46) threaded connection of seting up.
6. The multi-link angle adjustment sofa bed according to claim 5, wherein: the inner wall of the horizontal sliding slotted hole (22) adopts an antifriction coating with small friction force, and the service life of the equipment can be prolonged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210558207.5A CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
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| CN202210558207.5A CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
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| CN115088979A CN115088979A (en) | 2022-09-23 |
| CN115088979B true CN115088979B (en) | 2023-04-28 |
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| CN202210558207.5A Active CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
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| CN113040556A (en) * | 2019-12-27 | 2021-06-29 | 顾家家居股份有限公司 | Back linkage mechanism for sofa |
| CN113040555A (en) * | 2019-12-27 | 2021-06-29 | 顾家家居股份有限公司 | Mechanical stretching device for movable seat or functional sofa |
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| CN216358430U (en) * | 2021-04-23 | 2022-04-22 | 浙江米檬家居科技有限公司 | Lying leg translation and lifting functional sofa |
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| WO2013129637A2 (en) * | 2012-03-02 | 2013-09-06 | Chiba Fumio | Chair or sofa |
| CN203952966U (en) * | 2014-06-26 | 2014-11-26 | 陈国巨 | The chair that when chair back layback, cushion reach also declines simultaneously |
| CN210672706U (en) * | 2019-10-21 | 2020-06-05 | 上海贝氪若宝健康科技有限公司 | Adjustable backrest linkage mechanism |
| CN111955992A (en) * | 2020-08-21 | 2020-11-20 | 嘉善沣德家具有限公司 | Articulated formula sofa bed with locking structure |
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| CN115088979A (en) | 2022-09-23 |
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