Child safety seat rotation regulating mechanism
Technical field
The invention belongs to automotive seating art field, and in particular to a kind of backrest can 360 ° rotation child safety seats and
Rotation regulating mechanism.
Background technology
The children's seat that can reversely install currently on the market is a lot, when reversely install mostly by backrest and seat
Seat base is separated, and backrest is reversely installed on seat base, and this forward and reverse installation conversion of seat is relatively elaborate, regulation
It is more complicated with installation process.Also there are a small number of child safety seats, it is not necessary to which rotation, but the type product can be achieved in separation up and down
Nothing is effectively spacing, certain potential safety hazard be present.And the seat of in the market only has the mode of forward and backward installation, without lateral
Installation, it has not been convenient to the disengaging of automobile rear personnel.
The content of the invention
The technical problem to be solved in the invention is:Need not be by entirely when carrying out the reverse installation of child safety seat
Children's seat removes again reversely installation from automotive seat, need to only pull rotating disk lock-bit handle to make backrest main body with respect to seat bottom
180 ° of seat rotation can be installed reversely, and for convenience of adjusting and personnel's disengaging, can be along carrying out 90 clockwise or counterclockwise
Degree, 270 ° of rotation.
Therefore, the technical solution adopted in the present invention is:A kind of child safety seat rotation regulating mechanism, including on base
Lid, base lower cover and rotating disk, the base upper cover are fixed together with base lower cover, and the rotating disk is upper including being fixed together
Rotating disk and lower rotary table, lower rotary table are only rotatably mounted around on the middle part boss of base lower cover, and top rotary table is located at base upper cover
Top, in addition to rotating disk lock-bit handle, rotating disk handhold block, handle return spring, limited block return spring, the rotating disk lock-bit are drawn
Hand is integrally " U "-shaped, including two locking heads of the grip part of front end and rear end, and the circumferential edge of the rotating disk is provided with four pairs
Lock groove, the lower surface of rotating disk be provided with it is raised correspondingly with each pair lock groove, when two lockings of rotating disk lock-bit handle
When realizing locking in a pair of lock grooves corresponding to head is embedded, the projection of disk lower surface is against on rotating disk handhold block and compressed
Limited block return spring;When the grip part of rotating disk lock-bit handle by outside pulling force and drives two locking heads to depart from lock groove
Afterwards, rotating disk rotates under external force, and the projection of disk lower surface leaves rotating disk handhold block, and rotating disk handhold block is limiting
A segment distance is moved up in the presence of the block reset spring of position, rotating disk lock-bit handle, anti-rotation stop are blocked in the preceding surface of rotating disk handhold block
Rotating disk lock-bit handle is embedded in a lock groove when disk is not gone to, only when rotating disk rotate in place, rotating disk lock-bit handle
In the presence of handle return spring, two locking heads could be embedded in a pair of lock grooves simultaneously.
As the preferred of such scheme, the lower rotary table is in annular, and top rotary table matches with the bottom profile of children's seat,
Axis connection is oriented to after the axis of guide and chair back regulation before top rotary table envelope is adjusted outside the bottom of children's seat and by the chair back, it is described
The front portion of top rotary table is provided with front arc guide groove for the axis of guide before chair back regulation by the way that the rear portion of children's seat is provided with backarc
Shape guide groove is for the axis of guide after chair back regulation by so as to realize that children's seat tilt adjustable section is installed;Can be as needed
The regulation at children's seat angle of inclination is carried out, improves the comfortableness of seating.
Further, the anterior left and right compartment of terrain of cover cavity is symmetrically arranged with rotation of the positive stop lug boss to rotating disk under the base
It is spacing to carry out left and right;The rear portion of cover cavity is provided with " door " shape position-limited rack under the base, also fixed peace in cover cavity under base
Equipped with base connecting tube, two rotary disk limitation pieces or so compartment of terrain is symmetrically mounted in base connecting tube, and and " door " shape it is spacing
Frame limits moving up and down for rotating disk together, left and right it is spacing and it is spacing up and down gap is left between rotating disk, to ensure rotating disk
Smooth rotation, and " door " shape position-limited rack stabilized structure is reliable, is deformed when avoiding being hit.
Further, the forward and backward edge of the disk upper surface is mounted on stamping forming rotating disk reinforced sheet, and rotating disk is strengthened
It is provided with flanging upward on piece, the spacing overhead kick being provided at both ends with downward of " door " the shape position-limited rack, when
When rotating disk reinforced sheet turns to " door " shape position-limited rack opening position, flanging is just together with spacing overhead kick with a gap back-off.
Rotating disk reinforced sheet is metalwork, and rotating disk is working of plastics, increases rotating disk reinforced sheet at the forward and backward edge of rotating disk, increases formal dress and anti-
The bearing capacity of rotating disk during dress, 90 degree, 270 ° of positions when, because children's seat is in idle condition, thus need not increase turn
Disk reinforced sheet.
Further, the inverse-T-shaped post extended downwardly is provided with the rotating disk lock-bit handle, "T"-shaped post loads under base
In the inverted " t " groove of lid, guiding is slid back and forth for rotating disk lock-bit handle, and prevent rotating disk lock-bit handle from deviating from sliding process
Inverted " t " groove.
Beneficial effects of the present invention:Carry out child safety seat reverse installation when need not by whole children's seat from
Reversely installation again is removed on automotive seat, need to only pull rotating disk lock-bit handle backrest main body is rotated 180 ° relative to seat base
Can reversely it be installed, and for convenience of regulation and personnel's disengaging, can be along 90 degree of progress clockwise or counterclockwise, 270 ° of rotation
Turn.Unique structure, ingenious in design, easy to operate, unblock and latch functions are reliable, safe to use to trust.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the decomposing schematic representation of lower rotary table and base lower cover.
Fig. 4 is base lower cover and the decomposing schematic representation of related components.
Fig. 5 is the scheme of installation of lower rotary table and base lower cover.
Fig. 6 is the structural representation of rotating disk lock-bit handle.
Fig. 7 is the schematic diagram that lower rotary table and rotating disk lock-bit handle lock stop state.
Fig. 8 is Fig. 7 top view.
Fig. 9 is the schematic diagram of lower rotary table and rotating disk lock-bit handle released state.
Figure 10 is the scheme of installation of rotating disk and base lower cover.
Embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
With reference to shown in Fig. 1, Fig. 2, Figure 10, a kind of child safety seat rotation regulating mechanism, mainly by base upper cover 1, bottom
Seat lower cover 2, rotating disk 3 form, in addition, in addition to rotating disk lock-bit handle 4, rotating disk handhold block 5, handle return spring 6, limit
Position block reset spring 7, " door " shape position-limited rack 8, base connecting tube 9, rotary disk limitation piece 10, rotating disk reinforced sheet 11.
Base upper cover 1 is fixed together with base lower cover 2.Rotating disk 3 is by the top rotary table 3b and lower rotary table 3c that are fixed together
Composition, lower rotary table 3c are only rotatably mounted around on the middle part boss of base lower cover 2, and top rotary table 3b is located at the upper of base upper cover 1
Side.Lower rotary table 3c is placed in the inner chamber that base upper cover 1 is formed with base lower cover 2.Top rotary table 3b passes through the macropore on base upper cover 1
It is fixed together with lower rotary table 3c.
As shown in fig. 6, rotating disk lock-bit handle 4 is overall " U "-shaped, including the grip part 4a of front end and two lockings of rear end
Head 4b.
With reference to shown in Fig. 3-Figure 10, the circumferential edge of rotating disk 3 is provided with four couples of lock groove 3a, and the lower surface of rotating disk 3 is set
Have, a pair of a lock groove 3as corresponding projections raised correspondingly with each pair lock groove 3a, raised width just with a pair
Lock groove 3a span is equal.Realized when in a pair of lock groove 3a corresponding to two locking head 4b insertions of rotating disk lock-bit handle 4
During locking, the projection of the lower surface of rotating disk 3 is against on rotating disk handhold block 5 and compresses limited block return spring 7 (such as Fig. 7, Fig. 8 institute
Show).When the grip part 4a of rotating disk lock-bit handle 4 (is applied outside drawing by people by outside pulling force to rotating disk lock-bit handle 4
It is dynamic) and after driving two locking head 4b to depart from lock groove 3a, rotating disk 3 rotates (generally promote child seat by people under external force
Chair is so as to driving rotating disk to rotate), the projection of the lower surface of rotating disk 3 leaves rotating disk handhold block 5, and rotating disk handhold block 5 is limiting
A segment distance is moved up in the presence of position block reset spring 7, the preceding surface of rotating disk handhold block 5 is blocked rotating disk lock-bit handle 4, prevented
Rotating disk lock-bit handle 4 is embedded in a lock groove 3a when rotating disk 3 is not gone to, only when rotating disk 3 rotate in place, Rolling disc lock
In the presence of handle return spring 6, two locking head 4b could be embedded in a pair of lock groove 3a (such as Fig. 9 institutes position handle 4 simultaneously
Show).When limited block return spring 7 compresses, limited block return spring 7 is contradicted in the transverse concave groove 2b of base lower cover 2.
Lower rotary table 3c is in annular, and top rotary table 3a is connected in lower rotary table 3c surface, and top rotary table 3a and children's seat
12 bottom profile matching.The axis of guide 13 and chair before top rotary table 3a envelopes are adjusted outside the bottom of children's seat 12 and by the chair back
The axis of guide 14 connects after back of the body regulation, and top rotary table 3b front portion is provided with front arc guide groove 3d and led to for the axis of guide 13 before chair back regulation
Cross, the rear portion of children's seat 12 is provided with rear arc guide groove 12a for the axis of guide 14 after chair back regulation by so as to realize children
The tilt adjustable section of seat 12 is installed.
Lower rotary table 3c is only rotatably mounted around on the middle part boss of base lower cover 2, refers to that lower rotary table 3c is only rotatable, no
It can rock up and down.To prevent lower rotary table 3c, shaking volume is excessive up and down, is correspondingly provided with that left and right is spacing and bound
Bit architecture, left and right it is spacing and up and down it is spacing gap is left between rotating disk, both can ensure that 3 smooth rotation of rotating disk, and can avoids
Rock up and down.
Preferably, the anterior left and right compartment of terrain of the inner chamber of base lower cover 2 is symmetrically arranged with rotations of the positive stop lug boss 2a to rotating disk 3
It is spacing to carry out left and right;The rear portion of the inner chamber of base lower cover 2 is provided with " door " shape position-limited rack 8, and base lower cover 2 is also fixedly mounted in inner chamber
There is base connecting tube 9, two compartment of terrains of rotary disk limitation piece 10 or so are symmetrically mounted in base connecting tube 9, and and " door " shape limit
Position frame 8 limits moving up and down for rotating disk 3 together." door " shape position-limited rack 8 includes two riser 8b, a cross connecting plate 8c and one
Individual connecting shaft 8d, bulk strength is reliable, and protecting against shock ability is strong.
Preferably, the forward and backward edge of the upper surface of rotating disk 3 is mounted on stamping forming rotating disk reinforced sheet 11, and rotating disk is strengthened
Flanging 11a upward is provided with piece 11.The spacing overhead kick being provided at both ends with downward of " door " shape position-limited rack 8
8a, when rotating disk reinforced sheet 11 turns to " door " shape 8 opening position of position-limited rack, flanging 11a just has gap with spacing overhead kick 8a
Ground back-off is together.
In addition, being provided with the inverse-T-shaped post 4a extended downwardly on rotating disk lock-bit handle 4, "T"-shaped post 4a loads base lower cover
In 2 inverted " t " groove, guiding is slid back and forth for rotating disk lock-bit handle 4, and prevent rotating disk lock-bit handle 4 from being taken off in sliding process
Go out inverted " t " groove.