CN110466398A - Headrest and chair back coupling mechanism and child safety seat - Google Patents
Headrest and chair back coupling mechanism and child safety seat Download PDFInfo
- Publication number
- CN110466398A CN110466398A CN201910892453.2A CN201910892453A CN110466398A CN 110466398 A CN110466398 A CN 110466398A CN 201910892453 A CN201910892453 A CN 201910892453A CN 110466398 A CN110466398 A CN 110466398A
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- Prior art keywords
- headrest
- chair
- chair body
- gear
- guide groove
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 26
- 238000010586 diagram Methods 0.000 description 18
- 239000002184 metal Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses headrests and chair back coupling mechanism and child safety seat, including chair body and headrest, headrest is located at the inside of chair body, genesis analysis has gear slot group and two the first guide grooves on chair body, movable gear axis is equipped with the headrest of gear slot group corresponding position, the second guide groove is equipped on rear side of the gear axis of headrest, gear axis corresponds to each gear slot in gear slot group, the first connector for being fixed on headrest lower part passes through the first guide groove of chair body and carries out cross spacing with the first locating part, the second connector for being fixed on chair back top passes through the second guide groove of headrest and is laterally defined with the second locating part, the stability coupled so as to improve headrest with the chair back, the mobile guiding role of headrest is played simultaneously；When headrest is moved up relative to chair body, the first connector is moved up along the first guide groove, and the second connector and the second guide groove generate relative displacement and realize that height of headrest is adjusted.
Description
Technical field
The present invention relates to a kind of child safety seats, couple more particularly, to a kind of headrest of child safety seat with the chair back
Mechanism.
Background technique
It is usually provided with headrest on the inside of the child safety seat chair back, is provided with height adjustment machine between headrest and the chair back
Structure is the height of headrest that child's safety seat for vehicle is raised and lowered for convenience, when child height grows tall, children's seat
Head protection position also will accordingly increase, and protect children head preferably.The head of child safety seat currently on the market
Pillow regulating device or structure are more complicated or operate very inconvenient.There are also a kind of head rest adjusting devices, in order to arrive
Up to purpose easy to operate, the mating more complicated mechanism of setting is needed.Above-mentioned height of headrest regulating mechanism, needs both hands to cooperate with
Operation could complete being raised and lowered for headrest.
Application publication number is the height of headrest regulating mechanism of the child safety seat of CN201510328977.0, including pressure
Block, clamping block, detent slot and reset spring, clamping block are set to the inside of briquetting, reset spring be located at briquetting and clamping block it
Between, when reset spring is under extended state, clamping block is caught in detent slot, and headrest is fixed on the chair back；External force squeezes lock
Determine block, reset spring is compressed, and clamping block is separated with detent slot.
The coupling structure of the headrest and the chair back is not firm, headrest move up and down and when stationary state, is unstable.
Summary of the invention
Technical problem to be solved by the invention is to provide the reliable headrests of connection and chair back coupling mechanism, further mention
For the child safety seat with the chair back coupling mechanism.
The present invention solves technical solution provided by above-mentioned technical problem are as follows: headrest and chair back coupling mechanism, including chair body
And headrest, the described headrest are located at the inside of the chair body, genesis analysis has gear slot group and two the on the chair body
One guide groove is equipped with movable gear axis with the headrest of the gear slot group corresponding position, sets on rear side of the gear axis of headrest
There is the second guide groove, the gear axis corresponds to each gear slot in the gear slot group, is fixed on the of headrest lower part
One connector passes through the first guide groove of chair body and carries out cross spacing with the first locating part, is fixed on the second of chair back top
Fitting passes through the second guide groove of headrest and is laterally defined with the second locating part；When headrest is moved up relative to chair body,
First connector is moved up along the first guide groove, and the second connector and the second guide groove generate relative displacement.
A further preferred embodiment of the present invention are as follows: first guide groove is distributed in the two sides of gear slot group.
A further preferred embodiment of the present invention are as follows: the chair body includes integrated pedestal and the chair back, the headrest position
On the inside of the chair back.
A further preferred embodiment of the present invention are as follows: the first connector or the second connector are screw rod, first limit
Part or the second locating part are nut, and the outer diameter of nut is greater than the width of corresponding first guide groove or the second guide groove.
A further preferred embodiment of the present invention are as follows: the fixed block of accommodating cavity, the appearance are provided on the headrest
Set it is intracavitary be equipped with sliding shoe and detent block, gear axle position is moved by the mobile sliding shoe on the detent block
The detent block, so that the gear axis on detent block be made to fall into or leave in corresponding gear slot.
A further preferred embodiment of the present invention are as follows: the sliding shoe is equipped with the first inclined-plane, and detent block is equipped with second tiltedly
Face, the first inclined-plane and the second inclined-plane cooperate, and detent block is equipped with first back-moving spring, and sliding shoe is mobile, and detent block is to head
It is mobile to rest the head on direction, the gear axis on detent block is made to leave corresponding gear slot, headrest can be mobile relative to chair body, and first resets bullet
Spring compressive deformation.
A further preferred embodiment of the present invention are as follows: soft drawstring is connected on the sliding shoe, soft drawstring can drive
The movement of sliding shoe, sliding shoe are equipped with second back-moving spring, soft drawstring not when pulled, sliding shoe is in second back-moving spring
Under the action of reset, first back-moving spring makes detent block reset, and the gear axis on detent block is fallen into the gear slot.
A further preferred embodiment of the present invention are as follows: the upper end of the soft drawstring is exposed to the top of headrest.
A further preferred embodiment of the present invention are as follows: soft drawstring is located in the gap between headrest and chair body.
Another theme of the invention are as follows: child safety seat, including the headrest and chair back coupling mechanism.
Compared with prior art, it is an advantage of the invention that carrying out head by the different stalls slot that gear axis is inserted into gear slot group
Positioning after resting the head on height adjustment, in addition to the positioning of gear slot group and gear axis, there are also 2 groups of cross spacing structures, i.e., first leads
The first connector and the first locating part, the second guide groove is cooperated to cooperate the second connector and the second locating part to slot, so as to improve
The stability that headrest couples with the chair back, while this two groups of cross spacing structures also act as the mobile guiding role of headrest.
Detailed description of the invention
The present invention is explained in further detail below with reference to attached drawing and preferred embodiment, but art technology
Personnel it will be appreciated that, these attached drawings are drawn for the purpose for explaining preferred embodiment, and therefore should not be made
For limitation of the scope of the invention.In addition, unless otherwise indicated, attached drawing is only shown in the group for conceptually indicating described object
At or construction and may include that expansiveness show that and attached drawing is also not necessarily drawn to scale.
Fig. 1 is the perspective view of a preferred embodiment of the invention；
Fig. 2 is the scheme of installation one of the chair body of a preferred embodiment of the invention；
Fig. 3 is the scheme of installation two of the chair body of a preferred embodiment of the invention；
Fig. 4 is the chair body of a preferred embodiment of the invention and the scheme of installation of headrest；
Fig. 5 is the schematic diagram one of the chair body of a preferred embodiment of the invention；
Fig. 6 is the schematic diagram two of the chair body of a preferred embodiment of the invention；
Fig. 7 is the schematic diagram three of the chair body of a preferred embodiment of the invention；
Fig. 8 is the partial enlarged view of Fig. 5；
Fig. 9 is the schematic diagram one of the pedestal of a preferred embodiment of the invention；
Figure 10 is the schematic diagram two of the pedestal of a preferred embodiment of the invention；
Figure 11 is the schematic diagram three of the pedestal of a preferred embodiment of the invention；
Figure 12 is the schematic diagram of the swivel mount of a preferred embodiment of the invention；
Figure 13 is the schematic diagram of the U-shaped connection part of a preferred embodiment of the invention；
Figure 14 is the schematic diagram of the ring support of a preferred embodiment of the invention；
Figure 15 is the schematic diagram of the linked lockset of a preferred embodiment of the invention；
Figure 16 is the schematic diagram of first locking level of a preferred embodiment of the invention；
Figure 17 is the schematic diagram of the gear plate of a preferred embodiment of the invention；
Figure 18 is the schematic diagram of the position-limited rack of a preferred embodiment of the invention；
Figure 19 is the schematic diagram of the headrest of a preferred embodiment of the invention；
Figure 20 is first connector of a preferred embodiment of the invention and the connection schematic diagram or second of the first locating part
The connection schematic diagram of connector and the second locating part；
Figure 21 is the schematic diagram one of the fixed block of a preferred embodiment of the invention；
Figure 22 is the schematic diagram two of the fixed block of a preferred embodiment of the invention；
Figure 23 is the explosive view of the fixed block of a preferred embodiment of the invention.
Specific embodiment
Carry out detailed description of the present invention preferred embodiment below with reference to attached drawing.What those of skill in the art will be appreciated that
It is that these descriptions are only descriptive, illustrative, and should not be interpreted as limiting protection scope of the present invention.
It should also be noted that similar label indicates similar terms in following attached drawing, therefore, once a certain Xiang Yi attached drawing
In be defined, then may no longer it further be defined and be explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " on ", "lower", "left", "right", "front", "rear", "inner",
The orientation or positional relationship of the instructions such as "outside" be based on the orientation or positional relationship shown in the drawings or the invention product use
When the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " first ",
" second " etc. is not understood to indicate or imply relative importance, for the common skill of this field merely to difference description
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, child safety seat, including pedestal 100, chair body 200 and headrest 300.Chair body 200 includes seat
201 and 202 two positions of the chair back.The seat 201 of chair body 200 is assemblied on pedestal 100, and headrest 300 is assemblied in the chair of chair body 200
202 inside of back.
As shown in Fig. 2, chair body 200 is connected with pedestal 100 by rotary connection structure, to make chair body 200 can be the bottom of with respect to
Seat 100 rotates horizontally, so that convenient multi-angle in use looks after the child for being seated at child safety seat.
Rotary connection structure is illustrated in conjunction with Fig. 1-2,5-16, chair body 200 passes through longitudinal fixing axle 01 and pedestal
100 axis connect, and rotate chair body 200 can relative to pedestal 100.
The lower section of chair body 200 is equipped with a ring support 2 being fixed on chair body 200, is distributed with two-by-two in ring support 2
Opposite location hole 04.The quantity of location hole 04 be at least a pair, can also be arranged as needed along ring support 2 it is multipair, to
The positioning in 200 different rotation angle of chair body is carried out, realizes the different stalls switching that chair body 200 rotates.
Pedestal 100 be equipped with linked lockset 3, the linked lockset 3 run through 2 diametrical direction of ring support, both ends be equipped with
Fixing axle 01 is in a pair of locking bar on same straight line, i.e. the first locking level 31 and the second locking level 32.When chair body 200 rotates
To at the location hole 04 of corresponding gear, the first locking level 31 and the second locking level 32 respectively penetrate a pair on ring support 2 and determine
Position hole 04 is to fix pedestal 100 and the position of chair body 200, when need to be by rotating, then by the first locking level 31 and the second locking
Bar 32 unlocks abjection from location hole 04.In chair body 200 relative to the first lock in 100 rotation process of pedestal, on linked lockset 3
The front end of fixed pole 31 is withstood on the inner wall 2a of ring support 2, and the front end of the second locking level 32 on linked lockset 3 withstands on annular branch
On the outer wall 2b of frame 2, when rotating to lower a pair of of 04 position of location hole, the first locking level 31 and the second locking level 32 are automatic again
Locking.
Specifically, as shown in figure 14, ring support 2 is arranged in 201 bottom middle position of seat, by two semicircles
Bracket composition, and it is symmetrical before and after two semi-circular brackets.Preferably, ring support 2 is made of plastics or metal material.
As shown in Fig. 2,5,14, the medium position of each semi-circular bracket has a notch, and the opening direction of notch is the bottom of towards
First pair of location hole, i.e. first positioning hole 04a and second location hole 04b is arranged in this indentation, there in seat 100.The first positioning of setting
It is the mounting portion 05 of protrusion above the notch of hole 04a and second location hole 04b.In addition, 05 inside of mounting portion is convex towards center of arc
Fixed part 07 out is set in the fixed part 07 there are two longitudinal aperture side by side, and aperture is through-hole.
Preferably, the free end of two semi-circular brackets is separated by a distance, to form notch, the notch is as ring
Another pair location hole of shape bracket 2, i.e. third location hole 04c and the 4th location hole 04d, to make chair body 200 can be in right and left
Positioning upwards.
As shown in Fig. 5,8-12,201 bottom of lower section, that is, seat of chair body 200 is additionally provided with the swivel mount 1 of arc, circular arc
Concave surface 1a is towards chair body 200, and convex surface 1b is towards pedestal 100.The swivel mount 1 extends along the longitudinal direction, and both ends are fixed on annular branch
On the fixed part 07 of frame 2.The center of the convex surface 1b of swivel mount 1 is equipped with the fixing axle 01 of cylindrical body, 01 inserted base of fixing axle
In 100 compatible axis holes 02, to make chair body 200 that can carry out 360 degree rotation around fixing axle 01.
The both ends of the convex surface 1b of swivel mount 1 are provided with U-shaped fixing piece 03, and the both ends of U-shaped fixing piece 03 are each passed through annular
The through-hole being then passed through after two apertures in the fixed part 07 of bracket 2 on swivel mount 1, and fixed with fastener, and U-shaped fixation
The fit system of the aperture of part 03 and fixed part 07 is tight fit mode, so that the fixation of swivel mount 1 is connected across ring support 2
On, while further reinforcing the connection of ring support 2 and chair body 200.
Further, the traversing section of U-shaped fixing piece 03 is far from the lower edge of fixed part 07, to make U-shaped 03 He of fixing piece
Fixed part 07 is enclosed a cavernous structure, and the notch among the cavernous structure and ring support 2 is opposite, and the two collectively constitutes the
A positioning hole 04a or second location hole 04b.
As shown in Fig. 9-14, the intermediate region of 100 upper surface of pedestal has sunk area T, is provided in sunk area T
The annular groove 08 to match with ring support 2, the annular groove 08 become the track that ring support 2 rotates, chair body 200 and bottom
When seat 100 assembles, ring support 2 is embedded in annular groove 08, plays positioning and supporting role to ring support 2 in this way, is prevented
The spin-ended micro- offset of level and fore-and-aft tilt when turning, so that the more smooth stabilization of rotation.
The middle position of sunk area T is provided with the axle bed 09 with axis hole 02, and axle bed 09 protrudes from sunk area T,
Its height is related at a distance from swivel mount 1 and pedestal 100, it is preferable that 09 height of axle bed is assembled to annular recessed lower than ring support 2
Protrusion height after slot 08, after fixing axle 01 is inserted into axis hole 02,09 upper surface of axle bed is not contacted with the convex surface 1b of swivel mount 1, is kept away
Exempt from the two phase mutual friction, the rotation of chair body 200 is caused to stop to hinder.
As shown in Fig. 1-2,9-10,15-16, the linked lockset 3 on pedestal 100 is arranged along the longitudinal direction comprising band square
The pulling plate 003 of shape frame, one end of pulling plate 003 continue to extend to form handle 30, and 003 integrated injection molding of pulling plate of 30 one end of handle has
One inside lug boss, which is the second locking level 32, thus its size is adapted to the size of four location holes 04.Pulling plate
003 other end is fixed with the metal locking bar that a diameter is adapted to four location holes 04, i.e. the first locking level 31.First locking
The protrusion direction of bar 31 and the second locking level 32 are consistent, towards 100 rear end of pedestal.
The rectangular frame of pulling plate 003 covers outside axle bed 09, so as to make linked lockset 3 in the diametrical direction of ring support 2
Level is pushed back and forth.It should be noted that the front end of pedestal 100 is provided with the first opening 1A exposed for handle 30, when mentioning
When hand 30 is pulled outward, the first locking level 31 and the second locking level 32 exit location hole 04, thus by pedestal 100 and chair body
200 unlocks.
After unlock, the first locking level 31 retreats to the inner wall 2a of ring support 2, and the second locking level 32 retreats to ring support 2
Outer wall 2b, during turning chair body 200, the front end of the first locking level 31 on linked lockset 3 withstands on the inner wall of ring support 2
On 2a, the front end of the second locking level 32 on linked lockset 3 is withstood on the outer wall 2b of ring support 2.Pulling plate 003 and pedestal 100
Between be equipped with reset spring, when handle 30 is released, the screen resilience of reset spring remains linked lockset 3 backward to transport
Dynamic power.When rotation, the first locking level 31 and the second locking level 32 of linked lockset 3 are hindered by ring support 2, thus blocking lock
Tool 3 can not move backward；When chair body 200 rotates to lower a pair of of 04 position of location hole, ring support 2 to linked lockset 3 backward
The obstruction of movement disappears, the first locking level 31 and the automatic locking again of the second locking level 32.
Preferably, fixed lockhole 010 is additionally provided on pedestal 100, the first fixed lockhole including being located at 2 inside of ring support
010a and the second fixed lockhole 010b outside ring support 2, the first locking level 31 pass through first and fix after lockhole 010a again
It is finally inserted in the second fixed lockhole 010b across location hole 04.Fixed lockhole 010 not only makes determining for pedestal 100 and chair body 200
Position is more firm, while providing track to the first successively movement of locking level 31, avoids its deflection.
As shown in figure 3, the pitching of the chair back 202 of safety seat can be achieved by the back-and-forth motion of swivel mount 1 for the present embodiment
Angular adjustment.
As seen in figs. 5-6,1 installation direction of swivel mount that the bottom of chair body 200 is equipped with arcuately is provided with arc track 4,
4 size of arc track is adapted to swivel mount 1, and swivel mount 1 can be slided in arc track 4.
As shown in Fig. 2,5,8-9,12-13, the two sides of the concave surface 1a of swivel mount 1 are equipped with side plate 012, to be formed U-shaped
Slot.Opposite 012 rear and front end of side plate is provided with opposite strip sliding slot 011, two opposite 011 shapes of strip sliding slot
At a slide assembly so that U-shaped connection part 5 passes through, and swivel mount 1 and chair body 200 are connected.
Specifically, as shown in figure 13, U-shaped connection part 5 is U-shaped metal strip, it is preferable that diameter is equal everywhere in U-shaped metal strip
One, diameter 6-10mm.U-shaped connection part 5 includes lateral connection part 51 and two ends 52, and lateral connection part 51 passes through sliding slot group
Part, two ends 52 are equipped with screw thread, are threadedly coupled the bottom for being fixed on chair body 200.Because of U-shaped connection part 5 and slide assembly
It is flexibly connected, swivel mount 1 can be moved forward and backward.
It is connect by axis of the U-shaped connection part 5 to the connection of swivel mount 1, swivel mount 1 and pedestal 100 and ring support 2 and annular
Groove 08 is fitted into, and chair body 200 and pedestal 100 are bonded in the vertical direction.
Also, two ends 52 as illustrated in figs. 5-7, offered on the thickness direction of chair body 200 for U-shaped metal strip pass through
Through-hole, the nut for being limited at the front of chair body 200 is screwed on 52 screw thread of end so that U-shaped metal strip to be fixed on the chair back 202.
This connection type accessory is few, and structure is simple, and cost is relatively low, and the reliability connected is strong.
Preferably, nut sinks into the depressed area of 200 front surface of chair body, and the outer surface of nut is lower than before chair body 200
Surface, not influence the comfort level that children use safety seat.
As shown in Fig. 3,12, gear control assembly includes multiple first gear slots 013 on swivel mount 1 and is limited to chair body
The first gear axis 014 on 200, the first gear axis 014 fall into the first different gear slots 013 to limit pedestal 100 and chair body
200 elevation-depression angle.
Specifically, being equipped with the first gear slot 013, multiple first gears among 012 liang of sliding slot 011 of the side plate of swivel mount 1
013 upper end opening of slot, and it is communicating together, so that the first gear axis 014 be enable to switch between each first gear slot 013.
As shown in Fig. 3,12,17-18, gear control assembly further includes the gear plate 6 with knob 60 and is fixed on chair body 200
On the position-limited rack 7 with vertical slot 7a.Preferably, knob 60 exposes from the second of 200 front end of chair body the opening 1B, can by pair
The operation of knob 60 regulates and controls gear plate 6.Gear plate 6 is the U-shaped member of an opening backwards, and two counter-lateral quadrents 61 are assemblied in rotation
012 outside of side plate of frame 1.Two counter-lateral quadrents 61 are equipped with oblique slot 6a, and oblique slot 6a is tilted from low to high from front to back.
Position-limited rack 7 is arranged between gear plate 6 and swivel mount 1.Vertical slot 7a is opposite with a part of oblique slot 6a always,
Gear axis after vertical slot 7a and oblique slot 6a also cross penetrating in the gear slot of swivel mount 1.It is pulled along knob 60 or backward
Push knob 60 that the first gear axis 014 can be pushed to move up and down, so that the first gear axis 014 is in oblique slot 6a and vertical slot 7a
Interior movement, and switch in the first gear slot 013 of swivel mount 1.Specifically, forward, the first gear axis 014 is diagonally for knob 60
Slot 6a is tilted upward, and is detached from the first gear slot 013, and such chair body can successively be slided with respect to pedestal.
As shown in figure 4, being equipped with height adjustment mechanism between headrest 300 and the chair back 202 of chair body 200.Pass through the adjusting machine
Structure headrest 300 can be moved up and down relative to chair body 200, to adapt to the children's ride-on needs of different heights.
As shown in Fig. 1,3-7, genesis analysis has gear slot group 8 and two first guiding on the chair back 202 of 200 inside of chair body
Slot 9, gear slot group 8 is set to indent in the strip-shaped groove of 202 centre of the chair back, by multiple the second of longitudinal lineal layout
Gear slot 015 forms.First guide groove 9 is symmetrically distributed in the two sides of gear slot group 8, is that the longitudinal direction parallel with gear slot group 8 is prolonged
The long stripes through hole stretched.The top of the chair back 202 is provided with the second connector 10, the second connector 10 be located at gear slot group 8 just on
It just, is the screw rod penetrated from the second connection holes 11 of the chair back 202 from rear inward, and the substantially vertical chair back 202 in direction
Inner surface.
As shown in Fig. 1,7,19-20, the second guide groove is provided on position corresponding with gear slot group 8 among headrest 300
13.And have below the second guide groove 13 there are two the first connection holes 14 of horizontal Tile distribution, first connection holes 14 are horizontal
Corresponding to first guide groove 9 of position and the chair back 202, the first connector 15 is passed through from the first connection holes 14.
Further, the first connector 15 passes through the first guide groove 9 of chair body 200 and carries out transverse direction with the first locating part 16
Limit, the second connector 10 for being fixed on 202 top of the chair back pass through the second guide groove 13 of headrest 300 and with the second locating part 17
It is laterally defined；Headrest 300 is relative to chair body 200 when moving up, and the first connector 15 is along the first guide groove 9 to moving up
Dynamic, the second connector 10 and the second guide groove 13 generate relative displacement；When otherwise headrest 300 is moved down relative to chair body 200,
First connector 15 is moved down along the first guide groove 9, and the second connector 10 and the second guide groove 13 generate relative displacement.
First locating part 16 and the second locating part 17 are that the first connector 15 or 10 both ends of the second connector is fixed
A pair of of nut, and the outer diameter of nut is greater than the width of corresponding first guide groove 9 or the second guide groove 13, also greater than first
Connect the diameter in hole 14 or the second connection holes 11.It should be noted that the first locating part 16 and the second locating part 17 couple to first
Part 15 or the second connector 10 are fixed on 200 thickness direction of chair body, but it should be to the phase of headrest 300 and chair body 200
Gap appropriate is retained to sliding, overtorquing is prevented and causes headrest 300 that can not move.
As shown in Fig. 3,21-23, rest the head on 300 the second guide groove of centre 13 before be fixedly installed with band accommodating cavity 018
Fixed block 18, i.e. the horizontal position of fixed block 18 is corresponding with the gear slot group 8 of chair body 200, in the accommodating cavity 018 of fixed block 18
Equipped with sliding shoe 19 and detent block 20.
It is connected with the soft drawstring 400 of strip on sliding shoe 19, is pierced by upwards from 018 upper end of accommodating cavity of fixed block 18
It extends across the second guide groove 13 and exposes 300 tops of headrest, form the hand-held part for push-and-pull.By pulling soft drawstring
400 can drive sliding shoe 19 mobile.Soft drawstring 400 is located in the gap between headrest 300 and chair body 200, it is preferable that soft
Property drawstring 400 be located at before gear slot group 8, and block the second connector 10 and fasten the second connector 10 nut, do not do
Disturb sliding of second connector 10 in the second guide groove 13.
Detent block 20 is arranged above sliding shoe 19, has the second inwardly projecting gear axis 016 on detent block 20.And
It is provided with the through-hole that available second gear axis 016 is pierced by fixed block 18, the second gear axis 016 may pass through fixed block 18 to extending back
Out, and end can be above 300 outer surfaces of resting the head on.
Sliding shoe 19 is equipped with the first inclined-plane 19a, and the first inclined-plane 19a is tilted from low to high from 202 Inside To Outside of the chair back, blocks
Position block 20 cooperates equipped with the second inclined-plane 19b, the first inclined-plane 19a and the second inclined-plane 19b.In addition, detent block 20 and fixation
First back-moving spring 21 is equipped between block 18.When the soft drawstring 400 of pull moves up sliding shoe 19, detent block 20 is to head
The displacement of 300 directions is rested the head on, for first back-moving spring 21 by compressive deformation, the second gear axis 016 on detent block 20 leaves corresponding the
Two gear slots 015, latch-up-free between headrest 300 and chair body 200 push headrest 300 that it can be made mobile relative to chair body 200.
Further, it is provided with second back-moving spring between 18 inner wall of sliding shoe 19 and fixed block, when sliding shoe 19 is upward
When mobile, second back-moving spring is stretched deformation, when soft drawstring 400 not when pulled, sliding shoe 19 is in second back-moving spring
Under the action of reset, first back-moving spring 21 also resets detent block 20 at this time, and the second gear axis 016 stretches out backward, can fall into
Into gear slot, so that headrest 300 and chair body 200 be locked.
Headrest provided by the present invention is described in detail with chair back coupling mechanism and child safety seat above, this
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
Help understands the present invention and core concept.It should be pointed out that for those skilled in the art, not departing from this
, can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention
In scope of protection of the claims.
Claims (10)
1. headrest and chair back coupling mechanism, it is characterised in that including chair body and headrest, the headrest is located at the chair body
Inside, genesis analysis has gear slot group and two the first guide grooves on the chair body, with the gear slot group corresponding position
Headrest be equipped with movable gear axis, the second guide groove is equipped on rear side of the gear axis of headrest, the gear axis corresponds to institute
Each gear slot in gear slot group stated, the first connector for being fixed on headrest lower part pass through the first guide groove of chair body and with the
One locating part carries out cross spacing, and the second connector for being fixed on chair back top passes through the second guide groove of headrest and limited with second
Position part is laterally defined；When headrest is moved up relative to chair body, the first connector is moved up along the first guide groove, the
Two connectors and the second guide groove generate relative displacement.
2. headrest according to claim 1 and chair back coupling mechanism, it is characterised in that first guide groove is distributed in
The two sides of gear slot group.
3. headrest according to claim 1 and chair back coupling mechanism, it is characterised in that the chair body includes integrated bottom
Seat and the chair back, the headrest are located on the inside of the chair back.
4. headrest according to claim 1 and chair back coupling mechanism, it is characterised in that the first connector or the second connector
For screw rod, first locating part or the second locating part are nut, and the outer diameter of nut is greater than corresponding first guide groove or the
The width of two guide grooves.
5. headrest according to claim 1 and chair back coupling mechanism, it is characterised in that be provided with appearance on the headrest
The fixed block of chamber is set, is equipped with sliding shoe and detent block in the accommodating cavity, gear axle position passes through shifting on the detent block
The sliding shoe is moved to move the detent block, so that the gear axis on detent block be made to fall into or leave corresponding gear slot
It is interior.
6. headrest according to claim 5 and chair back coupling mechanism, it is characterised in that the sliding shoe is equipped with first tiltedly
Face, detent block are equipped with the second inclined-plane, and the first inclined-plane and the second inclined-plane cooperate, and detent block is equipped with first back-moving spring,
Sliding shoe is mobile, and detent block is mobile to headrest direction, so that the gear axis on detent block is left corresponding gear slot, headrest can be opposite
Mobile, the first back-moving spring compressive deformation in chair body.
7. headrest according to claim 6 and chair back coupling mechanism, it is characterised in that be connected on the sliding shoe soft
Property drawstring, soft drawstring can drive the movement of sliding shoe, and sliding shoe is equipped with second back-moving spring, is not pulled in soft drawstring
When, sliding shoe resets under the action of second back-moving spring, and first back-moving spring makes detent block reset, the gear axis on detent block
It falls into the gear slot.
8. headrest according to claim 7 and chair back coupling mechanism, it is characterised in that the upper end of the soft drawstring
It is exposed to the top of headrest.
9. headrest according to claim 7 and chair back coupling mechanism, it is characterised in that soft drawstring is located at headrest and chair body
Between gap in.
10. child safety seat, it is characterised in that including the headrest and chair back coupling mechanism as described in claim 1-9 is any.
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| CN201910892453.2A CN110466398B (en) | 2019-09-20 | 2019-09-20 | Headrest and chair back connecting mechanism and child safety seat |
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|---|---|---|---|
| CN201910892453.2A CN110466398B (en) | 2019-09-20 | 2019-09-20 | Headrest and chair back connecting mechanism and child safety seat |
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| CN110466398A true CN110466398A (en) | 2019-11-19 |
| CN110466398B CN110466398B (en) | 2024-08-09 |
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| CN201910892453.2A Active CN110466398B (en) | 2019-09-20 | 2019-09-20 | Headrest and chair back connecting mechanism and child safety seat |
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| CN113071391A (en) * | 2021-05-19 | 2021-07-06 | 安徽永驰婴童智能科技有限公司 | Chair body with deployable side wings and child safety seat |
| CN113647769A (en) * | 2021-07-29 | 2021-11-16 | 恒林家居股份有限公司 | Chair with waist support |
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| CN113647769B (en) * | 2021-07-29 | 2023-12-22 | 恒林家居股份有限公司 | Chair with waist rest |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110466398B (en) | 2024-08-09 |
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Address after: 246121 Liren West Road, industrial park, Huaining County, Anqing City, Anhui Province Applicant after: Anhui Yongchi Infant Technology Co.,Ltd. Address before: 246121 Liren West Road, industrial park, Huaining County, Anqing City, Anhui Province Applicant before: ANHUI YONGCHI BABY SAFETY TECHNOLOGY Co.,Ltd. |
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