CN208925559U

CN208925559U - A kind of folding sofa capable of using as bed

Info

Publication number: CN208925559U
Application number: CN201820975062.8U
Authority: CN
Inventors: 李方军
Original assignee: Zhuhai Superior Product Space Smart Home Co Ltd
Current assignee: Zhuhai Superior Product Space Smart Home Co Ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2019-06-04
Anticipated expiration: 2028-06-22

Abstract

The utility model relates to household items technical fields, and in particular to a kind of folding sofa capable of using as bed includes the first connecting rod mechanism being sequentially connected end to end, second connecting rod mechanism, third connecting rod mechanism and fourth link mechanism；The utility model is rotated by fore-stock component along the first articulated section, it drives and pulls component that four bar rocker arms is pulled to link along the second articulated section, after-poppet component is set to jack and pull downward on upwards in turn, it drives upper berth mechanism to be first lifted to after a turning height and is turned into upper berth form again, the fore-stock component lower berth mechanism that can also link is moved to the position of lower berth form in lifting switching process, make bed form of the divan from sofa morphological transformation to two-berth, it is easy to operate, in overturning by fore-stock component and after-poppet component by providing power, overturning is convenient.

Description

A kind of folding sofa capable of using as bed

Technical field

The utility model relates to household items technical fields, and in particular to a kind of folding sofa capable of using as bed.

Background technique

Divan refers to can sofa and the dual-purpose furniture of bed, it is generally the case that divan can be placed against the wall be placed in parlor or The function of seat is served as in study；Be unfolded divan in the evening that guest arrives, and spreading bedding is exactly a doss, to the benefit in space It is very high with rate, it is a kind of very practical furniture, there are many different designs for divan currently on the market, wherein most of is only Dynamic upper berth mechanism overturning is driven using simple pendulum arm, overturning is painstaking, and when connecting rod mechanism movement is to extreme position is easy to appear card Dead problem reduces user experience.

Utility model content

Used technical solution is to provide a kind of folding sofa capable of using as bed to the utility model in order to solve the above problem, includes First connecting rod mechanism, second connecting rod mechanism, third connecting rod mechanism and the fourth link mechanism being sequentially connected end to end；Described first connects Linkage includes pedestal, and the pedestal is equipped with the first articulated section and the second articulated section；The second connecting rod mechanism includes to set The fore-stock component on the first articulated section is set, is connected with lower berth mechanism on the fore-stock component；The third connecting rod mechanism Including upper berth mechanism；The fourth link mechanism includes the support component being arranged on the second articulated section, and support component includes Have after-poppet component and set there are two centrifugation end four bar rocker arms；Pulling is connected between the fore-stock component and four bar rocker arms Component, one of centrifugation end of the four bars rocker arm are connect with component is pulled, another centrifugation end is connect with after-poppet component； Fore-stock component rotates along the first articulated section and after-poppet component is driven to link, and upper berth mechanism is driven first to be lifted to a turning height It is overturn again afterwards to the position of upper berth form, lifts the lower berth mechanism that can also link of fore-stock component in switching process and be moved to lower berth shape The position of state.

As a further improvement of the foregoing solution, the fore-stock component includes that successively hinged fore-stock and front turn Lever, the fore-stock and the first articulated section are hinged, and connection lever is provided between fore-stock and after-poppet component.

As a further improvement of the foregoing solution, the pulling component includes the first successively hinged pull lever, second Pull lever, third pull lever and the 4th pull lever, the first pull lever are hinged on the centrifugation end of fore-stock component, the second pull lever hinge It connects on the base, the junction of the third pull lever and the 4th pull lever is provided with rotating wheel, and rotating wheel can be past on the base It is multiple mobile.

As a further improvement of the foregoing solution, the four bars rocker arm is arranged on the second articulated section, and support component is also wrapped Hinged rear motion block on the base is included, rear motion block is arranged in the top of four bar rocker arms, connects between rear motion block and four bar rocker arms There is rear lever, the head and end of after-poppet component is separately connected upper berth mechanism and rear motion block.

It as a further improvement of the foregoing solution, further include having the back rest seat being rotatably provided on pedestal, it is described to lean against Back lever component is provided between seat and after-poppet component, the subsequent bracket component of back rest seat is rotated and overturn to upper berth mechanism Lower section.

As a further improvement of the foregoing solution, the back lever component includes one end hinged the first back two-by-two Lever, the second back lever and third back lever, the first back lever are connect with after-poppet component, the second back lever It is connect with pedestal, third back lever is connect with back rest seat.

It as a further improvement of the foregoing solution, further include having liftable terraced component, the upper terraced component is parallel Four-bar mechanism, include ladder bars on first, on second ladder bars and several between ladder bars in ladder bars on first and second Transverse bar, ladder bars are articulated in the mechanism of upper berth on described first, and the articulated section of ladder bars and upper berth mechanism is equipped with kidney-shaped on first Pore structure, upper berth mechanism are equipped with the Pivot being accommodated in kidney-shaped pore structure.

It as a further improvement of the foregoing solution, further include having the latch assembly being arranged in the mechanism of upper berth, the locking Component includes sequentially connected locking bar bolt, locking connecting rod and button, is connected with return spring, after-poppet on the locking bar bolt The hinged place of component and upper berth mechanism is equipped with and adapts to locking bar lock bolt hole.

It as a further improvement of the foregoing solution, further include thering is head and end to be pivotally connected the dynamic of pedestal and fore-stock component respectively Power part, the force piece driving fore-stock component are swung.

As a further improvement of the foregoing solution, it is additionally provided with expansion hinge between the lower berth mechanism and pedestal, it is described The upper and lower ends of expansion hinge are provided with pulley, and the guide groove for holding pulley sliding is provided in lower berth mechanism and pedestal.

The beneficial effects of the utility model are:

One, the utility model is rotated by fore-stock component along the first articulated section, drives and component is pulled to pull four bar rocker arms It links along the second articulated section, so that after-poppet component is jacked and is pulled downward on upwards in turn, drive upper berth mechanism to be first lifted to one and turn over Turn to be turned into upper berth form after height again, lifts the lower berth mechanism that can also link of fore-stock component in switching process and be moved to lower berth shape The position of state makes bed form of the divan from sofa morphological transformation to two-berth, easy to operate, passes through fore-stock group in overturning By providing power, overturning is convenient for part and after-poppet component；

Two, the utility model is that fore-stock component drives after-poppet component pendulum by pulling component and support component linkage It is dynamic, driving force is provided for overturning upper berth mechanism, rapid operation promotes user experience；

Three, the support component of the utility model includes four bar rocker arms being rotatably provided on pedestal respectively and moves afterwards Block moves rear lever vertically, driving after-poppet component is swung, and upper berth mechanism provides for overturning by pulling Component driver Power；

Four, the back rest seat of the utility model using after-poppet component by back lever Component driver, make back rest seat along With hinge joint backswing after forward direction swings certain angle of pedestal, prevents the swing angle of back rest seat excessive and interferes with metope, Promote the applicability and practicability of divan；

Five, the utility model is additionally provided with terraced component, and upper terraced component and the articulated section of upper berth mechanism are kidney-shaped pore structure, Interference is generated when avoiding terraced component relative to the rotation of upper berth mechanism；

Six, the utility model is additionally provided with latch assembly, overturns from sofa form to bed form in divan, can be to rear Bracket component carries out locking with respect to the hinge joint of upper berth mechanism, prevents maloperation, promotes the safety of divan；

Seven, the utility model can also be swung using force piece driving fore-stock, and divan is enable to pass through power device It is automatically performed overturning, household preferably uses.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the bed form structural schematic diagram of the utility model folding sofa capable of using as bed；

Fig. 2 is the sofa morphosis schematic diagram of the utility model folding sofa capable of using as bed；

Fig. 3 is the schematic diagram of internal structure of the utility model folding sofa capable of using as bed；

Fig. 4 is the enlarged diagram in Fig. 3 at A；

Fig. 5 is the enlarged diagram in Fig. 3 at B；

Fig. 6 is the internal structural map of the utility model folding sofa capable of using as bed folded state；

Fig. 7 is that the upper berth mechanism of the utility model folding sofa capable of using as bed lifts upwards and overturns 30 ° of structural schematic diagram；

Fig. 8 is that the upper berth mechanism of the utility model folding sofa capable of using as bed lifts upwards and overturns 90 ° of structural schematic diagram；

Fig. 9 is that the upper berth mechanism of the utility model folding sofa capable of using as bed overturns 150 ° of structural schematic diagram；

Figure 10 is that the upper berth mechanism of the utility model folding sofa capable of using as bed overturns 180 ° of structural schematic diagram；

Figure 11 is the structural schematic diagram of the upper terraced component of the utility model；

Figure 12 is the structural schematic diagram of the latch assembly of the utility model.

Specific embodiment

Presently in connection with attached drawing and preferred embodiment, the utility model is described in more detail.

Such as a kind of folding sofa capable of using as bed of Fig. 1 and Fig. 2, it is divided into sofa form and bed form, the bed form is elevating rack The form of bed includes pedestal 1, upper berth mechanism 3, lower berth mechanism 8 and back rest seat 5, and the upside of upper berth mechanism 3 is group of going to bed, under Side is fixed with Sofa cushion 102, and lower berth mechanism 8 is provided with group of leaving the bed, and group of going to bed and group of leaving the bed are equipped with what suitable people lay down Cushion, in the overlapped form at sofa, group of going to bed is superimposed on downward leaves the bed in group, and Sofa cushion 102 is arranged upward, front end setting There is sofa forward position pad 101, the internal structure of sofa can be wrapped, keeps the shape of sofa more attractive, the left and right of Sofa cushion 102 Two sides are fixed with left handrail component 104 and right handrail component 105 respectively, and the rear side of Sofa cushion 102 is additionally provided with backing cushion 103, Backing cushion 103 is fixedly mounted on back rest seat 5, left handrail component 104 described in the present embodiment, right handrail component 105 and is leaned on Back pad 103 may each be cushion；When being transformed into bed form, upper berth mechanism 3 is lifted to a turning height and is overturn again to a group court of going to bed Upper, the upper berth form directed downwardly of Sofa cushion 102, while lower berth mechanism 8 is moved to the position of lower berth form, forms double-deck height Frame bed.

As shown in Figure 3 to Figure 4, the folding sofa capable of using as bed includes the first connecting rod mechanism being sequentially connected end to end, second Link mechanism, third connecting rod mechanism and fourth link mechanism；

The first connecting rod mechanism includes pedestal 1, and pedestal 1 is equipped with the first articulated section 11, the second articulated section 12 and third Articulated section 13, it is preferable that the top of the second articulated section 12 is arranged in third articulated section 13；

The second connecting rod mechanism includes the fore-stock component being arranged on the first articulated section 11, it is preferable that fore-stock Member hinges are additionally provided with moveable lower berth mechanism 8, fore-stock component and lower berth machine on the first articulated section 11 on pedestal 1 It is hinged with active pull rod 204 between structure 8 and passes through active pull rod 204 when fore-stock component is rotated counterclockwise along the first articulated section 11 Lower berth mechanism 8 is pulled to move forward to the position of lower berth form, in the rotation of fore-stock component, active pull rod 204 and fore-stock The articulated section of component is rotated along the first articulated section 11, has movement forward and upwards, that is to say, that lower berth mechanism 8 has simultaneously There is movement forward and upwards；

The third connecting rod mechanism be upper berth mechanism 3, fore-stock component rotation when, upper berth mechanism 3 also with preceding branch The hinged place of frame component is lifted to a turning height；

The fourth link mechanism includes support component and pulls component, and support component includes that setting is hinged second Four bar Rocker arm 4s 01 in portion 12 and the rear motion block 403 being arranged on third articulated section 13, screw rod rocker arm are set there are two being centrifuged end, It is hinged with rear lever 404 between one of centrifugation end of four bar Rocker arm 4s 01 and rear motion block 403, is vertically equipped with and holds on pedestal 1 The support frame 107 of lever 404 is postponed, four bar Rocker arm 4s 01 are rotated along the second articulated section 12, and lever 404 vertically moves after driving, And motion block 403 is rotated along third articulated section 13 after being driven by rear lever 404, is also hinged with after-poppet component on rear motion block 403 402, the other end of after-poppet component 402 connects upper berth mechanism 3, when rear motion block 403 is rotated along third articulated section 13, after-poppet group The subsequent motion block 403 of part 402 rotates and acts on upper berth mechanism 3, links with fore-stock component, upper berth mechanism 3 is lifted to one and is turned over Upper berth mechanism 3 is overturn to the position of upper berth form again after turning height, is additionally provided with atmospheric pressure pole between rear motion block 403 and pedestal 1 405, atmospheric pressure pole 405 be preferably two, purpose in order to play the role of under bed form support upper berth mechanism 3；It needs Illustrate, after-poppet component 402 can be directly hinged with one of centrifugation end of four bar Rocker arm 4s 01, passes through four bar rocker arms 401 rotations drive after-poppet component 402 to link and similarly can be realized lifting and overturn the function of upper berth mechanism 3；Pull component It include the first successively hinged pull lever 211, the second pull lever 212, third pull lever 213 and the 4th pull lever 214, first Pull lever 211 is hinged on the centrifugation end of fore-stock component, and preferably the first pull lever 211 is leaned on the junction of fore-stock component Nearly first articulated section 11, also can determines according to actual conditions junction at a distance from the first articulated section 11, the second pull lever 212 Middle part is hinged on pedestal 1, and the hinged place of third pull lever 213 and the 4th pull lever 214 is equipped with rotating wheel 215, is set on pedestal 1 Have and hold the slot that rotating wheel 215 rolls, the 4th pull lever 214 is hinged on another centrifugation end of four bar Rocker arm 4s 01, as this technology The another embodiment of scheme, can be directly hinged with another centrifugation end of four bar Rocker arm 4s 01 using a pull lever, this The mode of sample is equally able to drive four bar Rocker arm 4s 01 and rotates along the second articulated section 12, pulls the motion principle of component to be: overlapped Under state, the first pull lever 211 and the second pull lever 212 at limiting angle, i.e. the first pull lever 211 and the second pull lever 212 Angle can not change angle with the rotation of fore-stock component, and during fore-stock component rotates counterclockwise, second is pulled Bar 212 is rotated clockwise along the hinge joint with pedestal 1, and third pull lever 213 and the 4th pull lever 214 is driven to travel forward, It pulls four bar Rocker arm 4s 01 to rotate clockwise along the second articulated section 12, passes sequentially through rear lever 404 and rear motion block 403, propped up after driving Frame acts on upper berth mechanism 3, and making upper berth mechanism 3, jacking is to a turning height upwards, because of third pull lever 213 and the 4th pull lever 214 be it is hinged, make between third pull lever 213 and the 4th pull lever 214 that the second pull lever can be eliminated in an angle 212 and four angular displacements between bar Rocker arm 4 01 is not of uniform size and the interference problem that generates；Fore-stock component is continued to rotate to preceding branch Behind the frame component position parallel with the first pull lever 211, i.e. the first pull lever 211 has been crossed and 212 limiting angle of the second pull lever Position rotates counterclockwise the first pull lever 211 and the hinge joint of fore-stock component, driving the second pull lever 212 along with Hinge joint on pedestal 1 rotates counterclockwise, i.e., third pull lever 213 moves backward with the 4th pull lever 214, and four bars is pushed to shake Arm 401 is rotated counterclockwise along the second articulated section 12, passes sequentially through rear lever 404 and rear motion block 403, after-poppet is driven to act on Mechanism 3 is spread, upper berth mechanism 3 is overturn and is moved to the position of upper berth form.

Preferably, as shown in figure 3, fore-stock component includes successively hinged fore-stock 201 and front rotating bar 202, Front rotating bar 202 is hinged on the side of upper berth mechanism 3, and connection lever is hinged between fore-stock 201 and after-poppet component 402 203, its purpose is to limit position of the after-poppet component 402 with respect to fore-stock 201, upper berth mechanism 3 is enable to be lifted to one Turning height, and overturning is realized under this turning height.

As a further improvement of the foregoing solution, it as shown in figure 5, back rest seat 5 is hinged on pedestal 1, is also set up on pedestal 1 There is a back lever component, back lever component includes one end hinged the first back lever 231, the second back lever two-by-two 232 and third back lever 233, specifically, back lever component is equipped with a common hinge joint, the first back lever 231, One end of second back lever 232 and third back lever 233 is hinged on common hinge joint, furthermore, the first back is dynamic The other end and after-poppet component 402 of bar 231 are hinged, and the other end and pedestal 1 of the second back lever 232 are hinged, third back The other end and back rest seat 5 of lever 233 are hinged, it is preferable that the other end of the second back lever 232 is hinged on third articulated section 13 On, after-poppet component 402 with fore-stock component rotate and when linking, by back lever Component driver back rest seat 5 along with base The hinge joint rotation of seat 1, during rotation due to the restriction effect of the second back lever 232, at 232 turns of the second back lever Move to vertically to when can not be rotated in subsequent bracket component 402, and rotated by the subsequent bracket component 402 of the first back lever 231, When support component driving after-poppet component 402 rotates backward, back rest seat 5 is also by the subsequent bracket component of back lever component 402 rotate backward move angle, and effect, which is that back rest seat 5 can drive by after-poppet component 402, just realizes overturning, nothing Other power need to be introduced or overturning is operated alone in manpower, it is convenient and strength-saving, furthermore, back rest seat 5 is overturn after being rotated up certain angle, It can guarantee contour structure size when back rest seat 5 rotates without departing from pedestal 1, such mode has an advantageous effect in that, husky Hair would generally be placed on front, and in overturning to bed form, such mode may insure that back rest seat 5 is not interfered with metope And realize the overturning of bed form, that is to say, that without moving out sofa to overturning can be completed apart from metope certain position, mention Rise user experience.

If Fig. 6 to Figure 10 is the process that divan is overturn from sofa form to bed form, in a folded configuration, sofa forward position Pad 101, Sofa cushion 102, backing cushion 103, left handrail component 104 and right handrail component 105 are by the internal structure packet of divan It wraps, sees it is a tool sofa in appearance, attractive appearance meets the esthetic requirement that household uses；Divan is from folding State is overturn to upper berth mechanism 3 horizontal by during 30 °, and fore-stock 201 is with the first articulated section 11 for center of rotation edge Rotate counterclockwise lifting upper berth mechanism 3, the first pull lever 211 with the forward movement of the hinge joint of fore-stock component, at this time the One pull lever 211 and the second pull lever 212 are in the position of limiting angle and can not rotate along hinge joint, thus third pull lever 213 and the 4th pull lever 214 moved forward with the first pull lever 211, pull four bar Rocker arm 4s 01 along the second articulated section 12 clockwise Rotation moves upwards the rear lever 404 at another centrifugation end for being hinged on four bar Rocker arm 4s 01, and motion block 403 is along third after promotion Articulated section 13 rotates clockwise, and the after-poppet component 402 for being hinged on the centrifugation end of rear motion block 403 moves upwards lifting upper berth mechanism 3, fore-stock component and after-poppet component 402 lift upper berth mechanism 3 simultaneously, mobile simultaneously in the subsequent motion block 403 of after-poppet component 402 During rotation, after-poppet component 402 is rotated by back lever Component driver back rest seat 5, is allowed for the overturning of upper berth mechanism 3 Space out；From upper berth mechanism 3 horizontal by 30 ° of overturnings to 90 ° when, the angle between fore-stock 201 and front rotating bar 202 Cumulative, front rotating bar 202 drives upper berth mechanism 3 that can also overturn upper berth mechanism 3 while lifting, the 4th pull lever 214 after It is continuous to be pulled along four bar Rocker arm 4s 01, so that four bar Rocker arm 4s 01 is driven after-poppet bracket component by rear lever 404 and rear motion block 403 It moves up and overturns to upper berth mechanism 3 horizontal by 90 °, the first pull lever 211 and the second pull lever 212 cross pole at this time Limit angle；From upper berth mechanism 3 horizontal by 90 ° of overturnings to during 150 °, the first pull lever 211 and the second pull lever 212 Between angle exceed the maximum and become larger behind angle, pull the first pull lever of component 211 to rotate and turn with fore-stock 201 at this time It is dynamic, and the angle between the first pull lever 211 and the second pull lever 212 is cumulative, but the second pull lever 212 is not relative to pedestal 1 hinge joint rotation, then bracket component 402 is then with connection lever 203 and upper berth mechanism 3 along hinged with rear motion block 403 Point rotation, also subsequent bracket component 402 rotates the first back lever 231 along the common hinge joint of back lever component, at this time Back rest seat 5 do not rotate, and ensure that back rest seat 5 is not interfered with metope；From upper berth mechanism 3 horizontal by 150 ° of overturnings to 180 ° During, the first pull lever 211 continues to rotate with fore-stock 201 and pulls the second pull lever 212 along hinged with pedestal 1 Point rotates counterclockwise, and third pull lever 213 and the 4th pull lever 214 is pushed to move backward, and four bar Rocker arm 4s 01 is driven to turn counterclockwise Dynamic, the rear lever 404 for being hinged on another centrifugation end of four bar Rocker arm 4s 01 moves downward, and motion block 403 is hinged along third after pulling Point is to lower swing, and after-poppet component 402 also moves downward at this time, pulling upper berth mechanism 3 overturning to the position of upper berth form, at this time Lower berth mechanism 8 also with fore-stock 201 rotation and forward and be moved upward to the position of lower berth form, and back rest seat 5 also with Moving down and backswing for after-poppet component 402.

As a further improvement of the foregoing solution, it is stretched as shown in figure 9, being additionally provided between the lower berth mechanism 8 and pedestal 1 Contracting hinge 15, the upper and lower ends of the expansion hinge 15 are provided with pulley, and appearance is provided in lower berth mechanism 8 and pedestal 1 and is slided The guide groove 106 of slipping, when mechanism 8 is moved forward by main pull lever with fore-stock component in lower berth, due to fore-stock group Part rotates the movement and vertical movement that can generate horizontal direction, realizes lower berth mechanism by the way that moveable expansion hinge 15 is arranged 8 supporting role relative to pedestal 1 guarantees that lower berth mechanism 8 is reliability and durability in bed form.

It as a further improvement of the foregoing solution, further include dynamic part 14, the output end of the force piece 14 is hinged on On fore-stock 201, it is preferable that the hinge joint of force piece 14 and fore-stock 201 can be with the first pull lever 211 and fore-stock 201 Hinge joint be overlapped, force piece 14 can be electronic push rod machine and is also possible to cylinder, it can by the way of electric and pneumatic Fore-stock 201 is pushed to rotate along the first articulated section 11, the other end of force piece 14 is hinged on pedestal 1.

As a further improvement of the foregoing solution, as shown in figure 11, the upper berth mechanism 3 is additionally provided with liftable upper ladder Component, the upper terraced component can folding or expansion, upper ladder component is a kind of parallel four-bar linkage, is had a pair of parallel to each other On first in ladder bars 601, second ladder bars 602 and several between the transverse direction on first in ladder bars 601 and second between ladder bars 602 Bar 603, these connecting rods are articulated each other with rotatable relationship, ladder bars 602 in ladder bars 601 and second on first The front side of upper berth mechanism 3 is arranged in pivoting point, and ladder bars 602 can be using pivoting point as rotation center in ladder bars 601 and second on first It is rocked to a collapsed position being aligned with the forward edge of upper berth mechanism 3, ladder bars on first together with whole transverse bars 603 601 Pivots for being provided with kidney-shaped pore structure 604 with the articulated section of upper berth mechanism 3 and being accommodated in kidney slot, Pivot are affixed In upper berth mechanism 3, when ladder bars 601 on first are along pivot joint spot wobble, Pivot can go up terraced component in kidney slot relatively Sliding, such mode, which avoids the resigning for occurring turning or pivoting point when ladder bars 601 on first are swung, not enough to be caused to put It moves not in place.

It as a further improvement of the foregoing solution, as shown in figure 12, further include having the locking group being arranged in upper berth mechanism 3 The hinged place of part, after-poppet component 402 and upper berth mechanism 3 is provided with pin hole, and the latch assembly includes to adapt to pin hole simultaneously The locking bar bolt 701 that can be plugged in the horizontal direction, the other end of locking bar bolt 701 are connected with locking connecting rod 702 and button in turn 703, return spring 704 is connected on locking bar bolt 701, and return spring 704 is in Tensile under normality, guarantees that locking bar bolt 701 exists It is inserted in pin hole under normality, 703 side of button is equipped with connecting rod base 705 and reaction spring 706, and locking connecting rod 702 is hinged on connecting rod base On 705, it is additionally provided with limiting slot on connecting rod base 705, the pressing stroke of limit button 703 is provided with gear on locking bar bolt 701 Portion, stopper are additionally provided with locked groove 707 close to the side of button 703, push type lockset are provided on locked groove 707, that is, passes through key After spoon rotation lockset, under pressable, so that lockset is blocked in stopper close to the side of button 703, prevent locking bar bolt 701 from pin hole Interior extraction, avoids maloperation, when it is implemented, pressing lower button 703, locking connecting rod 702 is made to move down and turn with button 703 It is dynamic, and pull locking bar bolt 701 mobile to the direction far from pin hole, button 703 is decontroled in reality unlock, and button 703 can pass through Reaction spring 706 resets, and guarantees that locking bar bolt 701 can be horizontally close to pin hole, and return spring 704 then pulls locking bar bolt 701 when pin hole is directed at locking bar bolt 701, and locking bar bolt 701 can be automatically inserted into carry out locking, be not necessarily to manual operation, avoid Leakage operates and causes safety accident；It is inserted into after pin hole carries out locking in locking bar bolt 701, it can also be by locked groove 707 by locking bar Bolt 701 is locked, prevents from accidentally causing safety accident by lower button 703.

It should be noted that the utility model folding sofa capable of using as bed can be completed to turn in the case where not removing any cushion Turn, from sofa modality conversion at the form of bunk bed.

It should be noted that the motion process of the wherein side of folding sofa capable of using as bed is only depicted above, and it is another Side is identical as the structure of the side, and motion process is also identical, that is, the technical program is with pedestal 1 for first connecting rod mechanism, with upper berth Mechanism 3 is third connecting rod mechanism, and second connecting rod mechanism and fourth link mechanism there are two and divide equally and be located at the left and right of pedestal 1 Two sides.

More than, only the preferred embodiment of the utility model, the utility model are not limited to above embodiment, As long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.

Claims

1. a kind of folding sofa capable of using as bed, which is characterized in that include the first connecting rod mechanism being sequentially connected end to end, second connecting rod machine Structure, third connecting rod mechanism and fourth link mechanism；

The first connecting rod mechanism includes pedestal (1), and the pedestal (1) is equipped with the first articulated section (11) and the second articulated section (12)；

The second connecting rod mechanism includes that fore-stock component on the first articulated section (11) is arranged, on the fore-stock component It is connected with lower berth mechanism (8)；

The third connecting rod mechanism includes upper berth mechanism (3)；

The fourth link mechanism includes the support component being arranged on the second articulated section (12), and support component is propped up after including Frame component (402) and set there are two centrifugation end four bar rocker arms (401)；

It is connected with pulling component between the fore-stock component and four bar rocker arms (401), wherein the one of the four bars rocker arm (401) A centrifugation end is connect with component is pulled, another centrifugation end is connect with after-poppet component (402)；

Fore-stock component rotates along the first articulated section (11) and after-poppet component (402) is driven to link, and drives upper berth mechanism (3) first It is lifted to after a turning height and is overturn again to the position of upper berth form, lifting fore-stock component in switching process can also link lower berth Mechanism (8) is moved to the position of lower berth form.

2. a kind of folding sofa capable of using as bed according to claim 1, which is characterized in that the fore-stock component includes successively Hinged fore-stock (201) and front rotating bar (202), the fore-stock (201) and the first articulated section (11) hingedly, fore-stock (201) it is provided between after-poppet component (402) and connect lever (203).

3. a kind of folding sofa capable of using as bed according to claim 1, which is characterized in that the pulling component includes successively to cut with scissors The first pull lever (211), the second pull lever (212), third pull lever (213) and the 4th pull lever (214) connect, first pulls Bar (211) is hinged on the centrifugation end of fore-stock component, and the second pull lever (212) is hinged on pedestal (1), the third pull lever (213) it is provided with rotating wheel (215) with the junction of the 4th pull lever (214), rotating wheel (215) can be reciprocal on pedestal (1) It is mobile.

4. a kind of folding sofa capable of using as bed according to claim 1, which is characterized in that four bars rocker arm (401) setting exists On second articulated section (12), support component further includes having the rear motion block (403) being hinged on pedestal (1), rear motion block (403) setting Rear lever (404), after-poppet are connected between the top of four bar rocker arms (401), rear motion block (403) and four bar rocker arms (401) The head and end of component (402) is separately connected upper berth mechanism (3) and rear motion block (403).

5. a kind of folding sofa capable of using as bed according to claim 1, which is characterized in that further include being rotatably provided in pedestal (1) back rest seat (5) on is provided with back lever component, back rest seat between the back rest seat (5) and after-poppet component (402) (5) then bracket component (402) is rotated and is overturn to the lower section of upper berth mechanism (3).

6. a kind of folding sofa capable of using as bed according to claim 5, which is characterized in that the back lever component includes one End hinged the first back lever (231), the second back lever (232) and third back lever (233) two-by-two, after described first Back lever (231) is connect with after-poppet component (402), and the second back lever (232) is connect with pedestal (1), third back lever (233) it is connect with back rest seat (5).

7. a kind of folding sofa capable of using as bed according to any one of claims 1 to 6, which is characterized in that further include having liftable Upper terraced component, the upper terraced component is parallel four-bar linkage, includes ladder bars on first (601), ladder bars (602) on second And several transverse bars (603) between ladder bars (602) in ladder bars on first (601) and second, ladder bars on described first (601) it is articulated on upper berth mechanism (3), the articulated section of ladder bars (601) and upper berth mechanism (3) is equipped with kidney-shaped pore structure on first (604), upper berth mechanism (3) is equipped with the Pivot being accommodated in kidney-shaped pore structure (604).

8. a kind of folding sofa capable of using as bed according to any one of claims 1 to 6, which is characterized in that further include thering is setting to exist Latch assembly in upper berth mechanism (3), the latch assembly include sequentially connected locking bar bolt (701), locking connecting rod (702) and button (703) it, is connected with return spring (704) on the locking bar bolt (701), after-poppet component (402) and upper berth machine The hinged place of structure (3) is equipped with the pin hole for adapting to locking bar bolt (701).

9. a kind of folding sofa capable of using as bed according to any one of claims 1 to 6, which is characterized in that further include having first and last two End is pivotally connected the force piece (14) of pedestal (1) and fore-stock component respectively, and force piece (14) the driving fore-stock component is swung.

10. a kind of folding sofa capable of using as bed according to any one of claims 1 to 6, which is characterized in that the lower berth mechanism (8) it being additionally provided between pedestal (1) expansion hinge (15), the upper and lower ends of the expansion hinge (15) are provided with pulley, The guide groove (106) for holding pulley sliding is provided in lower berth mechanism (8) and pedestal (1).