A kind of angle adjustable sleeping berth Lumbar of quick recovery
Technical field
The present invention relates to car and boat technical field, especially a kind of motor-car sleeping berth Lumbar.
Background technology
Sleeping berth is the bunk for passenger's sleep on the vehicles such as train, steamer, when daytime, passenger need not sleep, sleeping berth
The function of seat is assume responsibility for again.With the development and the improvement of people's living standards of science and technology, people have for the comfort level gone on a journey
Requirement higher.Initial sleeping berth pillow direction only has vertical wall, and passenger cannot comfortably sit up and carry out viewing reading
The recreations such as game.Later stage also occurs in that wall suspension type Lumbar, the sense of discomfort when Pu that crouches during the journey of reduction sits up, due to
Lumbar is perpendicular to metope, and the experience sense to passenger is poor.
The Chinese patent of Application No. 201220357340.6 discloses a kind of adjustable function sleeping berth, including side stand,
Lower carriage, back cushion, place mat, described back cushion are arranged on side stand, and described place mat is arranged on lower carriage, place mat and back cushion
In have the sectional materials cage and Soft Roll being fixedly connected, also including linkage, one end of described linkage is connected to place mat
On, the other end is connected on back cushion, and support wheel is installed with place mat, and slide rail is provided with lower carriage so that support wheel is in slide rail
Slidably reciprocate.
Foregoing invention can adjust the angle of back cushion and the depth of cushion, height, this sleeping berth is can adapt to passenger and sit, crouch
When different demands, improve the comfortableness of seating.But this invention is confined to two states for the regulation of squab angle,
To the fast quick-recovery of back cushion position during the stepless trickle adjustment of squab angle can not still be realized and squab angle is adjusted.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of angle adjustable sleeping berth Lumbar of quick recovery, including:
Backboard;
Base plate, described base plate is hinged with backboard;
Also include:
Drive mechanism, the drive mechanism is arranged on base plate, and the drive mechanism is used to drive backboard opposed bottom to rotate;
Quick retraction mechanism, the quick retraction mechanism acts on drive mechanism, and it is used to for backboard to be retracted to initial position.
Further, described drive mechanism includes:
Slipping mechanism, the slipping mechanism is arranged on base plate, and it includes the first sliding block being slideably positioned on base plate 2;
Support bar, the support bar is arranged between backboard and slipping mechanism;
First sliding block can be in moving and drive support bar to drive backboard opposed bottom on base plate since initial position
Rotate.
Further, the slipping mechanism includes the base being fixed on base plate, the screw mandrel that is arranged on base, described the
One sliding block is set to the swivel nut matched with screw mandrel.
Further, the drive mechanism also includes:
Control-rod, the control-rod is connected with screw mandrel, and it is used for drive screw rotation.
Further, the swivel nut includes:
Swivel nut valve, the quantity of the swivel nut valve is at least two, the swivel nut valve elastic connection described at least two;
The quick retraction mechanism includes:
Separating mechanism, the separating mechanism is arranged between the swivel nut and control-rod, and it is used to make control-rod drive at least two
Individual described swivel nut valve is outwards separated and departs from the screw thread on screw mandrel;
Return mechanism, the return mechanism is used to return to initial position along the axially driving swivel nut for having disengaged from wire rod thread of screw mandrel.
Further, described separating mechanism includes:
Cavity, the cavity is arranged in screw mandrel, and the control-rod is inserted into cavity and can stretch screw mandrel relatively;
Ball, the swivel nut part is sheathed on control-rod, the swivel nut inner circumferential open up it is some extend along its length it is recessed
Groove, the ball is arranged between groove and control-rod;
Wedge structure, the wedge structure is arranged on control-rod, during it is used to make the control-rod be inserted into cavity
Drive ball to be displaced outwardly and described swivel nut valve is strutted, and swivel nut is departed from the spiral shell mosquito on screw mandrel.
Further, the return mechanism includes:
Guide post, the guide post is arranged on base;
Second sliding block, second sliding block is slideably positioned on guide post;
First stage clip, first stage clip is arranged between the second sliding block and base plate, and second sliding block is connected with swivel nut.
Further, the return mechanism also includes:
Composite structure, the composite structure includes the second stage clip being arranged in cavity, and it is used to make the spiral shell in released state
Set valve is combined.
Further, one end of described support bar is pivotally connected with the second sliding block, and its other end is hinged with backboard.
The beneficial effects of the invention are as follows:A kind of angle adjustable sleeping berth Lumbar of quick recovery of the invention, including backboard and
Base plate, described base plate is hinged with backboard;Also include the drive mechanism and quick retraction mechanism that are arranged on base plate;Passenger multiplies
The angle of inclination of Lumbar can be adjusted when sitting the sleeping berth with above-mentioned Lumbar according to itself requirement to comfort level;When passenger needs
Recover that Lumbar returning quickly, convenient and swift and practicality can be made by quick retraction mechanism during Lumbar.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples:
Fig. 1 adjusting meanss are arranged at the structural representation in base plate;
Fig. 2 is structural representation of the invention;
Fig. 3 is the structural representation that adjusting means is arranged on backboard;
The cut-away view of adjusting means when Fig. 4 is closed mode of the present invention;
The cut-away view of adjusting means when Fig. 5 is open mode of the present invention;
The cut-away view of adjusting means when Fig. 6 is fast receipts state of the invention.
Specific embodiment
Referring to figs. 1 to Fig. 6, as illustrated, a kind of angle adjustable sleeping berth Lumbar of quick recovery, including backboard 1, base plate 2,
The upside of described base plate 2 is hinged with the upside of backboard 1 by butterfly hinge so that the backboard 1 can opposed bottom 2 around butterfly
Shape hinge is rotated;Present invention additionally comprises:Drive mechanism 3, the drive mechanism 3 is fixed on base plate 2, and the drive mechanism 3 is used
Rotated in the opposed bottom 2 of backboard 1 is driven;Quick retraction mechanism, the quick retraction mechanism acts on drive mechanism 3, and it is used for
Backboard 1 is retracted to initial position.Passenger can want according to itself when taking the sleeping berth with above-mentioned drive mechanism 3 to comfort level
Ask to adjust the angle of inclination of Lumbar;Lumbar returning quickly can be made by quick retraction mechanism when passenger needs to recover Lumbar,
Convenient and swift and practicality.
Described drive mechanism 3 includes:Slipping mechanism, the slipping mechanism is arranged on base plate 2, and it includes sliding setting
In the first sliding block on base plate 2, support bar 38, the support bar 38 is arranged between backboard 1 and slipping mechanism;Described first slides
Block can be in mobile and in the first sliding block moving process can drive support bar 38 to drive since initial position on base plate 2
The opposed bottom 2 of backboard 1 is rotated.
Used as preferred, the slipping mechanism includes the screw mandrel 32 being arranged on base plate 2, and screw mandrel 32 is rotated and is arranged at one group
On base 31, base 31 is fixed by screws on base plate 2, and first sliding block is set to the swivel nut 33 matched with screw mandrel 32,
During the screw mandrel 32 is rotated on a base plate 2, swivel nut 33 matches somebody with somebody the axial movement merged along screw mandrel 32 with the screw thread of screw mandrel 32.
The drive mechanism 3 also includes:Control-rod 36, the control-rod 36 is connected with screw mandrel 32, and it is used for drive screw
32 rotate, in addition, one end of the control-rod 36 is connected with a knob 37, by twisting the rotatable control-rod 36 of knob 37.
Used as preferred, the swivel nut 33 includes:Swivel nut valve, the quantity of the swivel nut valve is at least two, at least two
Described swivel nut valve elastic connection, used as preferred, the swivel nut 33 is connected by spring by two semicircle swivel nut valves and constituted;Institute
Quick retraction mechanism is stated including separating mechanism, return mechanism, the separating mechanism be arranged at the swivel nut 33 and control-rod 36 it
Between, it is used to make control-rod 36 drive the swivel nut valve described at least two outwards to separate and depart from the screw thread on screw mandrel 32, described
Return mechanism is used to return to initial position along the axially driving swivel nut 33 for having disengaged from the screw thread of screw mandrel 32 of screw mandrel 32.
Include cavity 43, ball 39, wedge structure as preferred, described separating mechanism, the cavity 43 is arranged at
In screw mandrel 32, the control-rod 36 is inserted into cavity 43 and being capable of the relative telescopic slide of screw mandrel 32;The swivel nut 33
Divide and be sheathed on control-rod 36, the inner circumferential of the swivel nut 33 opens up some grooves 42 for extending along its length, the ball 39
It is arranged between groove 42 and control-rod 36;The wedge structure is arranged on control-rod 36, and it is used to make the control-rod 36
Drive ball 39 to be displaced outwardly and described swivel nut valve is strutted during being inserted into cavity 43, and swivel nut 3 is departed from screw mandrel
Spiral shell mosquito on 32, specifically, during the control-rod 36 is inserted into cavity 43, wedge structure on control-rod 36 can be by
Gradually ball 39 is outwards elapsed, ball 39 gradually struts swivel nut valve.
Used as preferred, the return mechanism includes guide post 34, the second sliding block 35 and the first stage clip 40, the guiding
Bar 34 is arranged on base 31;Second sliding block 35 is slideably positioned on guide post 34;First stage clip 40 is arranged at
Between two sliding blocks 35 and base plate 2, second sliding block 35 is connected with swivel nut 33, the process that the second sliding block 35 is slided along guide post 34
In the first stage clip 40 be in compressive state, have the trend for driving the second sliding block 35 to return to initial position, when above-mentioned swivel nut valve is strutted
And when departing from the spiral shell mosquito on screw mandrel 32, lack one end of the first stage clip 40 and support and drive the second sliding block 35 to recover position, together
When the second sliding block 35 with movable snail sleeve 33 recover position.
The return mechanism also includes:Composite structure, the composite structure includes the second stage clip being arranged in cavity 43
41, it is used to be combined the swivel nut valve in released state, specifically, when control-rod 36 is inserted into cavity 43 and makes swivel nut valve
Separate, now in cavity 43 the second stage clip 41 is in compressive state and suppresses between screw mandrel 32 and control-rod 36, due to the
Two stage clips 41 are suppressed and lack support in one end of control-rod 36, and the second stage clip 41 being capable of the recovery of drive control bar 36 position, control
Wedge structure on bar 36 no longer acts on ball 39, is combined swivel nut valve.
The control-rod 36 is connected with screw mandrel 32 by pin, specifically, be arranged oppositely in the cavity 43 axially prolonging
The locating slot stretched, the middle part of pin passes through control-rod 36, its two ends be inserted into to locating slot in, enable the control-rod 36
Control-rod 36 can drive screw mandrel 32 to rotate during being enough inserted into cavity 43.
It is pivotally connected as one end and the second sliding block 35 of preferred, described support bar 38, its other end passes through a universal joint
It is hinged with a universal socket, universal socket is fixed by screws on backboard 1.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also be used and above-mentioned implementation
The different form of mode, the equivalent conversion that those of ordinary skill in the art are made on the premise of without prejudice to spirit of the invention
Or corresponding change, should all belong in protection scope of the present invention.