CN115088979A - Multi-connecting-rod angle adjusting sofa bed - Google Patents
Multi-connecting-rod angle adjusting sofa bed Download PDFInfo
- Publication number
- CN115088979A CN115088979A CN202210558207.5A CN202210558207A CN115088979A CN 115088979 A CN115088979 A CN 115088979A CN 202210558207 A CN202210558207 A CN 202210558207A CN 115088979 A CN115088979 A CN 115088979A
- Authority
- CN
- China
- Prior art keywords
- rod
- wall
- cushion
- shaft
- pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
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 provided with a backrest side rod in a rotating way, 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 rotatably provided with an auxiliary backrest rod, the auxiliary backrest rod is rotatably arranged on the side wall of the backrest side 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 parlor sofa needs to give consideration to the requirement of sedentary sitting, and the convenience is poor because the tea table is usually arranged at the front end of the sofa and the leg support is easy to collide when rising, so that the sofa needs to be moved backwards.
Description
Technical Field
The invention relates to the technical field of angle adjustment sofa beds, in particular to a multi-connecting-rod angle adjustment sofa bed.
Background
The sofa bed is furniture capable of being used as a sofa and a bed. Modern living room arrangement is highly appreciated, and multifunctional furniture is more and more popular, and the sofa bed is the first one. In a small dwelling, a sofa bed is necessary to meet the occasional visitor's living needs.
In general, a sofa bed can be placed in a living room or a study room and serves as a seat; at night when guests come, the sofa bed is unfolded, and the bed is just a bed when bedding is laid. In a common house type such as a three-room and two-room, the sofa bed can be outside the sleeping bed for people to sleep, and the master is helped to deal with occasional visits by a plurality of guests. It is instructive to select an appropriate sofa bed. The sofa bed needs to satisfy two functions of sitting and lying, is firm, durable and beautiful, and the material and the process of the sofa bed are guaranteed.
Most of the existing sofa beds with adjustable angles adopt hinges to hinge a backrest and a cushion framework, then the cushion framework is hinged with a leg support framework through the hinges, the cushion framework is used as a fixed part, and power equipment is adopted to drive the leg support framework and the backrest framework to rotate around the cushion framework, so that certain angle adjustment is carried out; however, the existing sofa in the living room needs to be sedentary, and in order to facilitate taking and placing things, a tea table is usually placed at the front end of the sofa, and the leg supports are easy to collide when rising, so that the sofa needs to be moved backwards, and the convenience is poor.
Based on the above, the invention designs a multi-connecting-rod angle adjusting sofa bed to solve the above problems.
Disclosure of Invention
The invention aims to provide a multi-link angle-adjustable sofa bed, which aims to solve the problems that most of the existing angle-adjustable sofa beds proposed in the background technology adopt hinges to hinge a backrest and a cushion framework, then the cushion framework is hinged with a leg support framework through the hinges, the cushion framework is used as a fixed part, and power equipment is adopted to drive the leg support framework and the backrest framework to rotate around the cushion framework, so that certain angle adjustment is carried out; but because the needs of sitting for a long time are considered in the current sitting room sofa, in order to get the convenience of putting, put the tea table usually at the sofa front end, very easily bump when the leg holds in the palm and rises to need carry out the back to the sofa and handle, the relatively poor problem of convenience.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-connecting-rod angle adjusting sofa bed comprises two symmetrical installation rods, wherein an angle shaft is rotatably arranged at the upper end and the lower end side wall of each installation rod, a cross rod is fixedly arranged on the outer wall of each angle shaft, a pulling rod is fixedly arranged at one end, far away from the angle shaft, of the cross rod at the upper end, the outer wall of the pulling rod is rotatably provided with a backrest side rod, a middle rotating shaft is fixedly arranged at one end, far away from the angle shaft, of the cross rod at the lower end, an auxiliary backrest rod is rotatably arranged on the side wall of the backrest side rod through a pin shaft, the auxiliary backrest rod is parallel to the cross rod at the upper end, parallel plates parallel to the backrest side rods are further rotatably arranged on the outer wall of the middle rotating shaft, one end, far away from the middle rotating shaft, of each parallel plate is rotatably arranged on the side wall of the cross rod at the upper end through a pin shaft, and a plurality of backrest cross rods used for supporting backrest fillers are fixedly arranged between the two backrest side rods, two the pulling moves pole outer wall and is provided with the cushion mechanism that can follow back limit pole and move backward, every the installation pole lateral wall is provided with and is used for driving the angle axle and rotates the actuating mechanism who makes back limit pole move backward and empty.
According to a further scheme of the invention, the cushion mechanism comprises two symmetrically arranged cushion end rods, a vertical long circular groove is formed in the side wall of each group of cushion end rods, the pulling rod is sleeved on the inner wall of the long circular groove, a transverse long circular hole is transversely formed in the outer side wall of each cushion end rod, the angle shaft at the lower end of each cushion end rod is sleeved on the inner wall of the corresponding transverse long circular hole, a plurality of cushion cross rods for supporting sofa fillers are fixedly arranged between the two cushion end rods, and a leg support mechanism for lifting when the cushion mechanism moves backwards is arranged at one end, far away from the pulling rod, of each cushion end rod.
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, away from the pulling rod, of the cushion end rod, a plurality of leg support plates for supporting leg support fillers are rotatably arranged on the outer wall of the hinge shaft in an array mode, one end, away from the hinge shaft, of each leg support plate is fixedly provided with a same synchronous rod, leg support long round holes are formed in the side walls of the two leg support plates on the outermost side, a folding and unfolding rod is rotatably arranged on the side wall of the upper end of each leg support long round hole, a fixing rod is rotatably arranged on the side wall of the folding and unfolding rod, and the fixing rod is fixedly arranged on the side wall of the mounting 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 shaft respectively, the outer ends of the two bevel gears at the same end are engaged with bevel gear bars, the two bevel gear bars are respectively and rotatably arranged on the side wall of the mounting rod, the lower ends of the bevel gear bars are in transmission connection with a speed changer, the speed changer is fixedly arranged on the side wall of the mounting rod, and the lower ends of the speed changers 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 in transmission connection with the lower ends of the two speed changers, 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 shafts are rotatably arranged on the side wall of the mounting rod through a support, and the worm shafts are in transmission connection with the existing power motor.
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 threaded sleeve, the threaded sleeve 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 threaded sleeve through a thread arranged on the outer wall.
As a further scheme of the invention, the inner wall of the transverse smooth long circular hole is provided with an antifriction coating with small friction force, so that the service life of equipment can be prolonged.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention drives the angle shaft to rotate through the driving mechanism, so that the upper and the lower crossed rods rotate oppositely, and the side rods of the backrest move backwards and tilt, then a parallelogram is formed by the parallel plates, the two cross rods, the auxiliary backrest rods and the hinging sections of the backrest side rods, the back rest side rod moves backwards while tilting and lifting, so that the pulling rod which is originally positioned at the upper end of the long circular groove moves upwards, the cushion end rod is switched to be in a horizontal state from a state that the rear end is low and the front end is high, and then the backrest and the cushion of the whole sofa 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, thereby improving the comfort, secondly, the backward movement of the cushion end rod drives the leg support mechanism to move backward and unfold, so that the leg support plate rises, the leg support performance is improved, thereby improve the travelling comfort, and avoid the leg to hold in the palm the direct problem that lifts up and produce the collision with tea table or table platform in the place ahead of mechanism.
2. The seat cushion end rod moves back and forth to drive the hinge shaft to move back and forth, so that the axis of the hinge shaft is vertically overlapped and dislocated with the axis of the retracting rod, and the leg support long round hole slides outside the retracting rod, so that the seat cushion end rod is unfolded and folded, a person can effectively support legs when lying, and the leg support can be folded to the lower end of the sofa when sitting, so that the problem that the leg support is stained is avoided.
3. According to the invention, the power device works to drive the transmission to rotate, so that the bevel gear rod is driven to rotate, the bevel gear rod rotates to drive the two bevel gears to synchronously and oppositely rotate, and the angle shaft and the cross rod synchronously and oppositely rotate, so that the equipment is more stable to operate, and the problem of fatigue and strain caused by overlarge stress on the angle shaft due to rotation of a single angle shaft is solved.
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 rotate synchronously, 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 adjusted steplessly, and the motor is locked at any time when not working, so that the problem that the angle of the existing equipment is inconvenient to adjust is effectively solved.
5. The driving shaft rotates in the threaded sleeve to drive the sliding sleeve to slide on the mounting rod, so that the height of the equipment is changed, the height of the equipment is reduced when the equipment is laid down, the height of a sofa bed is increased when the equipment is switched to be in a sitting mode, feet of a person can automatically land, the comfort is improved, the height of the sofa is reduced when the equipment is laid down, the sofa is easy to fall due to the fact that the sofa is not provided with a shielding object, and the use risk of the equipment can be reduced due to the reduced height.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic side-view, bottom-view, general structural diagram of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic side-view, partially cross-sectional, overall structural view of the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 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 components represented by the respective reference numerals are listed below:
the device comprises a mounting rod 10, an angle shaft 11, a cross rod 12, a backrest side rod 13, a middle rotating shaft 14, an auxiliary backrest rod 15, a parallel plate 16, a backrest cross rod 17, a pulling rod 18, a cushion end rod 20, a long circular groove 21, a transverse sliding long circular hole 22, a cushion cross rod 23, a hinge shaft 25, a leg supporting plate 26, a synchronizing rod 27, a leg supporting long circular hole 28, a folding and unfolding 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a multi-connecting-rod angle adjusting sofa bed comprises two symmetrical installation rods 10, wherein an angle shaft 11 is rotatably arranged on the upper end side wall and the lower end side wall of each installation rod 10, a cross rod 12 is fixedly arranged on the outer wall of each angle shaft 11, a pulling rod 18 is fixedly arranged at one end of the cross rod 12 at the upper end far away from the angle shaft 11, a backrest side rod 13 is rotatably arranged on the outer wall of the pulling rod 18, a middle rotating shaft 14 is fixedly arranged at one end of the cross rod 12 at the lower end far away from the angle shaft 11, an auxiliary backrest rod 15 is rotatably arranged on the outer wall of the middle rotating shaft 14, the auxiliary backrest rod 15 is rotatably arranged on the side wall of the backrest side rod 13 through a pin shaft, the auxiliary backrest rod 15 is parallel to the cross rod 12 at the upper end, a parallel plate 16 parallel to the backrest side rod 13 is rotatably arranged on the outer wall of the middle rotating shaft 14, one end of the parallel plate 16 far away from the middle rotating shaft 14 is rotatably arranged on the side wall of the cross rod 12 at the upper end through a pin shaft, a plurality of backrest side rods 17 for supporting backrest fillers are fixedly arranged between the two backrest side rods 13, the outer walls of the two pulling rods 18 are provided with cushion mechanisms which can move backwards along with the backrest side rods 13, and the side wall of each mounting rod 10 is provided with a driving mechanism for driving the angle shaft 11 to rotate so as to enable the backrest side rods 13 to move backwards and incline; the cushion mechanism comprises two cushion end rods 20 which are symmetrically arranged, the side wall of each group of cushion end rods 20 is provided with a vertical long circular groove 21, a pulling rod 18 is sleeved on the inner wall of the long circular groove 21, the outer side wall of each cushion end rod 20 is transversely provided with a transverse sliding long circular hole 22, an angle shaft 11 at the lower end is sleeved on the inner wall of the transverse sliding long circular hole 22, a plurality of cushion cross rods 23 for supporting sofa fillers are fixedly arranged between the two cushion end rods 20, and one ends of the two cushion end rods 20, which are far away from the pulling rod 18, are provided with leg support mechanisms for lifting when the cushion mechanism moves backwards;
when the sofa cover is used, the device is assembled, as shown in fig. 1, the device is rotated ninety degrees anticlockwise in fig. 1, the direction of the device is resolved 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, and the right end of the device is seen from the bottom to the top of the figure;
when the invention is used, the driving mechanism works to drive the angular shaft 11 to rotate (from the right side of the device, the upper angular shaft 11 at the right end rotates clockwise, the lower angular shaft 11 at the right end rotates anticlockwise, so that the cross rod 12 at the upper end rotates clockwise, the pulling rod 18 moves backwards and rises, and simultaneously the cross rod 12 at the lower end rotates anticlockwise, so that the middle rotating shaft 14 moves backwards and falls, comprehensively, the hinge joint of the lower end of the backrest side rod 13 and the pulling rod 18 moves backwards and rises, and the auxiliary backrest rod 15 moves backwards and falls, because the parallel plates 16, the hinge sections of the two cross rods 12 and the auxiliary backrest rod 15 and the backrest side rod 13 form a parallelogram, the auxiliary backrest rod 15 moves backwards and inclines, and the lower end of the pulling rod 18 rises to a certain extent, so that the backrest has an inclined angle change, and then the pulling rod 18 moves backwards and rises to drive the cushion end rod 20 to move backwards, the whole cushion mechanism moves backwards, in the process (as shown in fig. 1 and 2, under the action of gravity of a human body, in the process of moving the cushion end rod 20 backwards, namely, when the cross sliding long round hole 22 slides on the angle shaft 11, a middle balance point is passed, wherein the pulling rod 18 is arranged 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 of the sofa is low and the rear end of the cushion end rod is high, so that people can land on both feet, the safety of people is improved, and meanwhile, the comfort of the human body is kept), at the moment, the rear end of the cushion end rod 20 is low and the front end of the cushion end rod is high, so that people can be better wrapped when toppled and lying down, the comfort of the sofa is improved, and as the driving mechanism continuously operates, the backrest side rod 13 is finally in a horizontal state, and the height rises to a certain degree, so that the cushion end rod 20 is integrally lifted up, and the cushion end rod 20 and the backrest side rod 13 are kept in a horizontal coplanar state (the thickness of supporting filler of the backrest is smaller than that of the cushion with the filler is thick filler The cushion is more important than the backrest, so the backrest can be made thin to save the distance between the backrest and the rear wall of the sofa), and a complete and flat bed state is formed; the backrest cross rods 17 and the cushion cross rods 23 can effectively support the positions of the sofa supporting fillers, so that the sofa is prevented from collapsing, the leg support mechanisms are also moved backwards and unfolded in the process of moving the cushion mechanism backwards, the use area of the sofa bed is increased, the comfort is improved, and the problem that the leg support mechanisms are directly lifted up to collide with a tea table or a table in front is avoided;
the invention drives the angle shaft 11 to rotate through the driving mechanism, so that the upper and lower cross rods 12 reversely rotate, the backrest side rods 13 move backwards and tilt, then the parallel plates 16, the two cross rods 12 and the auxiliary backrest rods 15 form a parallelogram with the hinged sections of the backrest side rods 13, so that the backrest side rods 13 move backwards while tilting and lifting, the pulling rods 18 originally positioned at the upper ends of the long circular grooves 21 move upwards, the cushion end rods 20 are switched from a state of lower rear ends and higher front ends to a state of being horizontal, the backrest and the cushion of the whole sofa are switched to a pure flat state with the same horizontal height through the thickness difference of the backrest fillers and the cushion fillers, so that the comfort is improved, the cushion end rods 20 move backwards to drive the leg support mechanism to move backwards and unfold, so that the leg support plate rises, the leg support performance is improved, and 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.
As a further scheme of the invention, the leg rest mechanism comprises a hinge shaft 25, the hinge shaft 25 is rotatably arranged on the side wall of one end, away from the pulling rod 18, of the cushion end rod 20, the outer wall of the hinge shaft 25 is rotatably provided with a plurality of leg support plates 26 for supporting the leg rest filler, which are arranged in an array manner, one end, away from the hinge shaft 25, of each leg support plate 26 is fixedly provided with a same synchronizing rod 27, the side walls of the two leg support plates 26 at the outermost sides are provided with leg rest long round holes 28, the side wall of the upper end of each leg rest long round hole 28 is rotatably provided with a folding and unfolding rod 29, the side wall of each folding and unfolding rod 29 is rotatably provided with a fixing rod 30, and the fixing rod 30 is fixedly arranged on the side wall of the mounting rod 10;
when the invention is used, because 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 retractable rod 29 slides forwards in the leg support long round hole 28, so that the leg supporting plate 26 is lifted and kept close to horizontal with 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 support long round hole 28 on the side wall of the leg supporting plate 26 is acted by the retractable 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 and close to horizontal and acted by two groups of supporting points of the hinge shaft 25 and the retractable rod 29, so as to carry out angular rotation, and then the synchronous rod 27 acts, so that the whole leg supporting plates 26 synchronously rotate to be close to horizontal, thereby expanding the supporting performance of the thigh support and improving the comfort, and secondly, when the leg supporting plate 26 moves forwards, the hinge shaft 25 and the receiving and releasing rod 29 are close to each other, the leg supporting plate 26 can rotate clockwise under the action of self gravity, so that the folding and the storing are carried out, then the hinge shaft 25 continuously moves forwards to exceed the vertical surface of the axis of the receiving and releasing rod 29, and finally the leg support long round hole 28 can be folded backwards under the action of the receiving and releasing rod 29, so that the leg support can be completely separated from contact with shoes of people, and the problem that the leg support is stained by the shoes is avoided;
according to the invention, the cushion end rod 20 moves back and forth, the hinge shaft 25 is driven to move back and forth, the axis of the hinge shaft 25 is vertically overlapped and dislocated with the axis of the folding and unfolding rod 29, and the leg support long round hole 28 slides outside the folding and unfolding rod 29, so that the leg support can be unfolded and folded, the leg support can be effectively supported when a person lies, the leg support can be folded to the lower end of the sofa when the person sits, and the problem of fouling 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 ends of the angle shaft 11 respectively, the outer ends of the two bevel gears 33 at the same end are engaged with bevel gear rods 34, the two bevel gear rods 34 are respectively and rotatably arranged on the side wall of the mounting rod 10, the lower ends of the bevel gear rods 34 are in transmission connection with a speed changer 35, the speed changer 35 is fixedly arranged on the side wall of the mounting rod 10, and the lower ends of the speed changers 35 are in transmission connection with a power device with a locking function;
power plant work drive derailleur 35 rotates to drive bevel gear stick 34 and rotate, thereby bevel gear stick 34 rotates two bevel gear 33 of drive and carries out synchronous phase reversal rotation, makes angle axle 11 and cross bar 12 carry out the constant speed and rotates in opposite directions, thereby makes the equipment operation more stable, avoids single angle axle 11 to rotate, leads to angle axle 11 atress too big tired problem that the strain is bad to appear.
As a further scheme of the invention, the power device comprises two driving shafts 40, the two driving shafts 40 are respectively in transmission connection with the lower ends of the two speed changers 35, 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 a 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 in transmission connection with the existing power motor;
the existing motor drives the worm shaft 43 to rotate, the worm shaft 43 drives the worm sleeve 42 to rotate, the worm sleeve 42 drives the worm gears 41 on two sides to rotate synchronously, the worm gears 41 rotate 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 of the existing equipment is inconvenient to adjust is effectively solved.
As a further scheme of the invention, the lower end of the mounting rod 10 is vertically provided with a sliding sleeve 45 which is fixedly arranged on the ground in a sliding manner, the side wall of the sliding sleeve 45 is fixedly provided with a threaded sleeve 46, the threaded sleeve 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 threaded sleeve 46 through a thread formed on the outer wall;
according to the invention, the driving shaft 40 rotates in the threaded sleeve 46 to drive the sliding sleeve 45 to slide on the mounting rod 10, so that the height of the equipment is changed, the height of the equipment is reduced when the equipment is laid down, the height of a sofa bed is increased when the equipment is switched from a sitting mode, so that feet of a person can automatically land and the comfort is improved, and then the height of the sofa is reduced when the equipment is laid down.
As a further scheme of the invention, the inner wall of the transversely-sliding long round hole 22 adopts an antifriction coating with small friction force and capable of prolonging the service life of equipment.
Claims (7)
1. The utility model provides a many connecting rods angle modulation sofa bed, includes mounting rod (10) of two symmetries, its characterized in that: every installation pole (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 and is provided with crossbar (12), the upper end crossbar (12) keep away from the fixed pull rod (18) that is provided with of one end of angle axle (11), pull rod (18) outer wall rotates and is provided with back limit pole (13), the lower extreme crossbar (12) keep away from the fixed well pivot (14) that is provided with of one end of angle axle (11), rotate on well pivot (14) outer wall and be provided with vice back pole (15), vice back pole (15) rotate through the round pin axle and set up on back limit pole (13) lateral wall, vice back pole (15) are parallel with crossbar (12) of upper end, well pivot (14) outer wall still rotates and is provided with parallel plate (16) parallel with back limit pole (13), the one end that pivot (14) were kept away from to in (16) rotates the crossbar (C) that sets up the upper end crossbar (C) (12) rotate and set up the crossbar (C) (C 12) On the lateral wall, two fixed being provided with a plurality of back horizontal poles (17) that are used for supporting the back filler between back limit pole (13), two pull pole (18) outer wall is provided with the cushion mechanism that can follow back limit pole (13) and move backward, every installation pole (10) lateral wall is provided with and is used for driving angle axle (11) to rotate and makes back limit pole (13) move backward and the actuating mechanism who emptys.
2. The multi-link angle adjustable sofa bed according to claim 1, wherein: cushion mechanism includes that two symmetries are provided with cushion end rod (20), every group vertical slot (21) have been seted up to cushion end rod (20) lateral wall, the pole (18) cover is established at slot (21) inner wall, every sideslip slotted hole (22), lower extreme are transversely seted up to cushion end rod (20) lateral wall the sideslip slotted hole (22) inner wall, two are established to angle axle (11) cover fixed being provided with a plurality of cushion horizontal poles (23) that are used for supporting the sofa filler between cushion end rod (20), two the one end that pole (18) were kept away from to cushion end rod (20) is provided with the leg that is used for carrying on the lifting when cushion mechanism moves backward and holds in the palm the mechanism.
3. The multi-link angle adjustable sofa bed according to claim 2, wherein: the leg support mechanism comprises a hinge shaft (25), the hinge shaft (25) is rotatably arranged on the side wall of one end, away from the pull rod (18), of the cushion end rod (20), a plurality of leg support plates (26) used for supporting the leg support filler in an array arrangement mode are rotatably arranged on the outer wall of the hinge shaft (25), one end, away from the hinge shaft (25), of each leg support plate (26) is fixedly provided with a same synchronizing rod (27), leg support long round holes (28) are formed in the side walls of two leg support plates (26) on the outermost side, a folding and unfolding rod (29) is rotatably arranged on the side wall of the upper end of each leg support long round hole (28), a fixing rod (30) is rotatably arranged on the side wall of the folding and unfolding rod (29), and the fixing rod (30) is fixedly arranged on the side wall of the mounting rod (10).
4. The multi-link angle adjustable sofa bed according to claim 3, wherein: the driving mechanism comprises bevel gears (33) which are coaxially and fixedly arranged at the ends of an angle shaft (11) respectively, bevel gear rods (34) are meshed at the outer ends of the bevel gears (33) at the same ends, the bevel gear rods (34) are rotatably arranged on the side wall of the mounting rod (10) respectively, the lower ends of the bevel gear rods (34) are in transmission connection with a speed changer (35), the speed changer (35) is fixedly arranged on the side wall of the mounting rod (10), and the lower end of the speed changer is in transmission connection with a power device with a locking function.
5. The multi-link angle adjustable sofa bed according to claim 4, wherein: the power device comprises two driving shafts (40), the two driving shafts (40) are respectively in transmission connection with the lower ends of two speed changers (35), 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 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 the mounting rod (10) through a support, and the worm shaft (43) is in transmission connection with an existing power motor.
6. The multi-link angle adjustable sofa bed according to claim 5, wherein: the installation pole (10) lower extreme is vertical to be slided and is provided with and is used for fixed sliding sleeve (45) that set up subaerial, sliding sleeve (45) lateral wall is fixed and is 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 screw thread and the thread bush (46) threaded connection who offers.
7. The multi-link angle adjustable sofa bed according to claim 6, wherein: the inner wall of the transverse smooth long circular hole (22) is provided with an antifriction coating with small friction force, and the service life of equipment can be prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210558207.5A CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210558207.5A CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115088979A true CN115088979A (en) | 2022-09-23 |
| CN115088979B CN115088979B (en) | 2023-04-28 |
Family
ID=83288198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210558207.5A Active CN115088979B (en) | 2022-05-21 | 2022-05-21 | Multi-connecting-rod angle-adjusting sofa bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115088979B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140183A1 (en) * | 2003-12-01 | 2005-06-30 | J. Robert Britton & Associates, Inc. | Reclining chair with foot and leg rest |
| CN203088297U (en) * | 2012-12-21 | 2013-07-31 | 东莞光润家具股份有限公司 | Translational folding interlocking sofa bed |
| 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 |
| CN209391501U (en) * | 2018-08-31 | 2019-09-17 | 恩龙实业(嘉兴)有限公司 | A kind of divan |
| 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 |
| CN211911079U (en) * | 2020-03-14 | 2020-11-13 | 嘉兴市南湖区永利金属家具厂(普通合伙) | Sofa structure capable of adjusting backrest in linkage manner |
| 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 |
| 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 |
| CN113040556A (en) * | 2019-12-27 | 2021-06-29 | 顾家家居股份有限公司 | Back linkage mechanism for sofa |
| 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 |
-
2022
- 2022-05-21 CN CN202210558207.5A patent/CN115088979B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140183A1 (en) * | 2003-12-01 | 2005-06-30 | J. Robert Britton & Associates, Inc. | Reclining chair with foot and leg rest |
| WO2013129637A2 (en) * | 2012-03-02 | 2013-09-06 | Chiba Fumio | Chair or sofa |
| CN203088297U (en) * | 2012-12-21 | 2013-07-31 | 东莞光润家具股份有限公司 | Translational folding interlocking sofa bed |
| CN203952966U (en) * | 2014-06-26 | 2014-11-26 | 陈国巨 | The chair that when chair back layback, cushion reach also declines simultaneously |
| CN209391501U (en) * | 2018-08-31 | 2019-09-17 | 恩龙实业(嘉兴)有限公司 | A kind of divan |
| 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 |
| 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 |
| CN113040556A (en) * | 2019-12-27 | 2021-06-29 | 顾家家居股份有限公司 | Back linkage mechanism for sofa |
| CN211911079U (en) * | 2020-03-14 | 2020-11-13 | 嘉兴市南湖区永利金属家具厂(普通合伙) | Sofa structure capable of adjusting backrest in linkage manner |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115088979B (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2396891C1 (en) | Folding armchair | |
| CN107788732A (en) | A kind of armchair structure and seat | |
| CN111602993A (en) | Sofa stretching device capable of providing zero-gravity sitting feeling | |
| CN111839052B (en) | Electromechanical stretching device | |
| CN112155870A (en) | Wheelchair capable of controlling height of seat and lying and resting | |
| CN210748189U (en) | Electric seat adjusting linkage mechanism and seat stretching adjusting device | |
| CN111685520A (en) | Mechanical stretching unit and mechanical stretching device | |
| CN111671264A (en) | Multifunctional leisure chair frame structure and control method | |
| CN201452287U (en) | Multi-directionally adjustable chair and desk for study | |
| CN109124120B (en) | Iron frame for standing-assisting deck chair and working method thereof | |
| CN115088979A (en) | Multi-connecting-rod angle adjusting sofa bed | |
| CN217471556U (en) | Structure improved chair frame | |
| CN212878459U (en) | Electromechanical stretching device | |
| CN212630322U (en) | Mechanical stretching unit and mechanical stretching device | |
| CN212438005U (en) | Sofa stretching device capable of providing zero-gravity sitting feeling | |
| CN114288107A (en) | Multifunctional nursing bed | |
| WO2021248703A1 (en) | Mechanical extension units and electro-mechanical extension apparatus | |
| CN216854246U (en) | Adjustable sliding driving electric bed for user to lie flat completely | |
| CN216166391U (en) | Super zero gravity seat frame | |
| CN219680169U (en) | Sofa metal framework and reclining type couch | |
| CN213282221U (en) | Frame structure of multifunctional leisure chair | |
| CN220655167U (en) | Linkage type lifting chair | |
| CN213216104U (en) | Lifting chair | |
| CN205963485U (en) | A flexible frame and seat unit for seat unit | |
| CN217365127U (en) | Folding chair structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |