CN109747493A - A kind of head rest height adjustment device of child safety seat - Google Patents

A kind of head rest height adjustment device of child safety seat Download PDF

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Publication number
CN109747493A
CN109747493A CN201910171054.7A CN201910171054A CN109747493A CN 109747493 A CN109747493 A CN 109747493A CN 201910171054 A CN201910171054 A CN 201910171054A CN 109747493 A CN109747493 A CN 109747493A
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CN
China
Prior art keywords
head rest
gear
adjustment pin
drawing article
height adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910171054.7A
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Chinese (zh)
Inventor
胡祝艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu European Intelligent Technology Co Ltd
Original Assignee
Jiangsu European Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu European Intelligent Technology Co Ltd filed Critical Jiangsu European Intelligent Technology Co Ltd
Priority to CN201910171054.7A priority Critical patent/CN109747493A/en
Publication of CN109747493A publication Critical patent/CN109747493A/en
Pending legal-status Critical Current

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Abstract

The present invention provides a kind of head rest height adjustment device of child safety seat, including main casing, head rest, the first head rest positioning components, the second head rest matable assembly and the gear part being fixedly connected with main casing;First head rest positioning components include head rest drawing article, gear adjustment pin, gear part and the activity grafting of gear adjustment pin.When the upward slide downward of head rest drawing article, slide bolt makees linear slide along positioning groove, and driving gear adjustment pin makees stretching motion, so that gear adjustment pin activity insertion or disengaging gear part.Changed by spatial relationship of the gear bolt for separation with the insertion of gear part, realizes head rest height adjustment, simplify assembly, reduce maintenance cost;And it is symmetrical arranged two gear bolt realizations to adjust the height at head rest both ends simultaneously, improves the stability of altitude location.

Description

A kind of head rest height adjustment device of child safety seat
Technical field
The present invention relates to child safety seat fields, are more particularly to a kind of head rest height adjustment dress of child safety seat It sets.
Background technique
As child safety seat currently on the market is using more more and more universal, people are to the practical of child safety seat Property requires also higher and higher, therefore is applicable in the big feature of age range, many child safety seats for child safety seat The device of head rest height adjustment is both increased, so that meeting the needs of children's all ages and classes height.
The head rest height adjustment device of many child safety seats currently on the market, it is relative complex that there is regulative modes It is hidden, also there is the part of regulating device excessive, assembly is complicated, the big problem of maintenance difficulties coefficient, and there are also many use to adjust band Or similar adjusting rod cooperates single detent mode to carry out height adjustment, is easy after repeatedly adjusting there is height, because of mill Damage is serious, and detent is unstable and triggers the danger of sliding surface dislocation.
In view of this, it is necessary to the head rest height adjustment device of child safety seat in the prior art is improved, To solve the above problems.
Summary of the invention
To achieve the above object, the present invention provides a kind of head rest height adjustment device of child safety seat, including master Shell, head rest, the first head rest positioning components, the second head rest matable assembly and the gear part being fixedly connected with main casing;
The first head rest positioning components include head rest drawing article, gear adjustment pin, and the head rest drawing article slides up and down At the head rest back side, the free end of the head rest drawing article is equipped with the guide channel and positioning groove that are arranged symmetrically for setting;
The second head rest matable assembly includes head rest fixed plate, head rest gear adjusting fixing piece, the head rest gear tune Fixing piece is saved by being fixedly mounted on head rest fixed plate;
The first head rest positioning components are mounted on the inside of main casing, and the second head rest matable assembly is enclosed in first The outside of positioning components is held in the palm, and is slidably connected with main casing, the gear part and the activity grafting of gear adjustment pin, the gear tune Section pin is connect with the head rest drawing article by slide bolt, and the slide bolt extends into positioning groove;
When the head rest drawing article upward sliding, slide bolt makees linear slide along positioning groove, and driving gear adjustment pin is made Opposite stretching motion, to be inserted into the shelves for the gear plate that gear part is formed close to head rest fixed plate side by the activity of gear adjustment pin In the hole of position.
As a further improvement of the present invention, the head rest drawing article is equipped with regulation handle.
As a further improvement of the present invention, the head rest drawing article is equipped with resetting apparatus.
As a further improvement of the present invention, the resetting apparatus include a fixed fixture block, one end be equipped with fixed hook and The other end is equipped with the reset spring for resetting hook and resets fixture block;The fixed hook hook is held on fixed fixture block, works as adjusting When handle pulls up, resets hook hook and be held on reset fixture block, reset spring is shunk to pull direction, to drive slide bolt When moving linearly in positioning groove, so that gear adjustment pin does opposite stretching motion to be detached from the limit of gear hole, head rest is drawn Moving part can slide up and down adjusting height;When unclamping regulation handle, reset spring restores stationary state, resets hook and is detached from again Position fixture block, when driving slide bolt to make reset linear movement in positioning groove, so that gear adjustment pin does reversed stretching motion To reinsert gear hole, realize that the first head rest positioning components reset.
As a further improvement of the present invention, the sliding section of the guide channel and regulation handle, which pull, adjusts direction water Flat, the sliding section of the positioning groove and guide channel form angle, and the extending direction of guide channel and head rest fixed plate adjusting side To consistent.
As a further improvement of the present invention, the angle is 20 °~30 °.
As a further improvement of the present invention, when gear adjustment pin makees opposite stretching motion under the driving of head rest drawing article When, when the distance of gear adjustment pin telescopic slide and the slide bolt make linear slide along positioning groove, along gear adjustment pin The sliding realized on flexible direction is equidistant.
Compared with prior art, the beneficial effects of the present invention are: the improved head rest height for child safety seat Regulating device, structurally reasonable, it is convenient to assemble, and the harmony between components is strong, and height adjustment is convenient and stability is strong.
Detailed description of the invention
Fig. 1 is half-sectional view of the height adjustment device of the present invention along diagram up and down direction;
Fig. 2 is structural exploded view of Fig. 1 shown device on children's seat;
Fig. 3 is the facing structure figure of the second head rest matable assembly;
Fig. 4 is the exploded view of the first head rest positioning components;
Fig. 5 is cross-sectional view of the head rest drawing article shown in Fig. 4 along paper direction;
Fig. 6 is the structure chart that screen body is equipped in Fig. 1 area elliptica B;
Fig. 7 is Fig. 6 along the direction A-A sectional side view.
Specific embodiment
The present invention is described in detail for each embodiment shown in reference to the accompanying drawing, but it should be stated that, these Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method, Or equivalent transformation or substitution in structure, all belong to the scope of protection of the present invention within.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction ", " positive direction ", " negative direction " is base In orientation or positional relationship shown in the drawings, it is 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.
Please join Fig. 1 to a kind of child safety seat of the present invention illustrated in fig. 7 head rest height adjustment device specific reality Apply mode.
In the present embodiment, the head rest height adjustment device for being used for child safety seat, including main casing 40, head rest 20, the first head rest positioning components 10, the second head rest matable assembly 30 and the gear part 101 being fixedly connected with main casing 40, 103, the first head rest positioning components 10 include head rest drawing article 102, gear adjustment pin 171, and head rest drawing article 102, which slides up and down, to be set It sets at 20 back side of head rest, the free end of head rest drawing article 102 is equipped with the guide channel 1622 and positioning groove 1624 being arranged symmetrically;
Second head rest matable assembly 30 includes head rest fixed plate 301, head rest gear adjusting fixing piece 302, head rest gear tune Section fixing piece 302 is fixedly mounted in head rest fixed plate 301;
First head rest positioning components 10 are mounted on 40 inside of main casing, and the second head rest matable assembly 30 is enclosed in the first head rest The outside of positioning components 10, and be slidably connected with main casing 40, gear part 101,103 and the 171 activity grafting of gear adjustment pin, shelves Position adjustment pin 171 is connect with head rest drawing article 102 by slide bolt 1623, and slide bolt 1623 extends into positioning groove 1624; Gear part 101,103 is installed on main casing 40 with bolt by upper screw hole 111 and the next screw hole 161;Gear part 101,103 exists The gear plate 141 with several gear holes 1411 is installed on one side towards the first head rest positioning components 10;Head rest drawing article 102 is equipped with Regulation handle 112, head rest drawing article 102 are equipped with resetting apparatus 142.
Resetting apparatus 142 includes a fixed fixture block 1421, one end is equipped with fixed hook 1422 and the other end is equipped with to reset and hang The reset spring 1423 and reset fixture block 1425 of hook 1424;1421 hook of fixed hook is held on fixed fixture block 1421, works as adjusting When handle 112 pulls up, resets 1424 hooks of hook and be held on reset fixture block 1425, reset spring 1423 is received to pull direction Contracting, when driving slide bolt 1623 to move linearly in positioning groove 1624, so that gear adjustment pin 171 does opposite flexible fortune The dynamic limit to be detached from gear hole 1411, head rest drawing article 102 can slide up and down adjusting height;When release regulation handle 112 When, reset spring 1423 restores stationary state, resets hook 1424 and is detached from reset fixture block 1425, to drive slide bolt 1623 to exist When making reset linear movement in positioning groove 1624, so that gear adjustment pin 171 does reversed stretching motion to reinsert gear hole 1411, realize that the first head rest positioning components 10 reset.
Head rest gear fixing piece 302 includes that gear adjusts limit body 322 and shift finger limit plate 312, and gear adjusts limit Body 322 and the separated state of shift finger limit plate 312, form the cavities of horizontal receiving gear adjustment pin 171, and gear is adjusted Pin 171 makees opposite stretching motion in cavities, in the gear hole 1411 be inserted into gear part 101,103.
Wherein, 1623 location of slide bolt is position shown in Fig. 3 after gear adjustment pin 171 is inserted into gear hole 1411 X1 is set, the location of Fixed latches 1621 are position Y1 shown in Fig. 4, and the position for the gear hole 1411 being inserted into is Fig. 1 institute The position S1 shown, shift finger limit plate 312 are on one side and horizontal corresponding for position shown in FIG. 1 with position S1 towards gear hole 1411 Set S2;Extreme position when slide bolt 1623 makees contractile motion after the disengaging gear hole 1411 of gear adjustment pin 171 is shown in Fig. 3 Position X2, the location of Fixed latches 1621 are position Y2 shown in Fig. 4;
Head rest height adjustment principle is as follows, as shown in Figure 1, when regulation handle 112 is pulled along the upward arrow direction of diagram, The slide downward in sliding groove 132 of positioning screw 122, the built-in reset spring 1423 in resetting apparatus 142 are stretched contraction, with So that resetting being pulled up for 1424 pairs of reset fixture blocks 1425 of hook, symmetrically arranged fixation in gear regulatory region 162 is driven to insert Pin 1621 makees slide downward in corresponding guide channel 1622, and position Y1 is moved to position Y2 exactly from Fig. 4;Equally it is simultaneously Symmetrically arranged slide bolt 1623 makees linear slide obliquely in corresponding positioning groove 1624, so that and slide bolt The 1623 gear adjustment pins 171 being symmetrically connected make opposite contractile motion, the direction of contractile motion left and right directions as shown in Figure 1, just It is that position X1 is moved to position X2 from Fig. 3, realizes the disengaging of slide bolt 171 Yu gear hole 1411, so that head rest 20, One head rest positioning components 10, the second head rest matable assembly 30 integrally pull up under the pulling of regulation handle 112.When height After position determines, regulation handle 112 is unclamped, head rest 20, the first head rest positioning components 10, the second head rest matable assembly 30 are in nature It resets hook 1424 under the action of downward force, in resetting apparatus 142 and is detached from and reset fixture block 1425, to promote gear regulatory region Fixed latches 1621 in 162 make upward sliding in corresponding guide channel 1622, while being equally that symmetrically arranged sliding is inserted Pin 1623 makees linear slide obliquely in corresponding positioning groove 1624, so that the gear being symmetrically connected with slide bolt 1623 Adjustment pin 171 is made to reversed stretching routine, the direction of stretching routine left and right directions as shown in Figure 1, realize slide bolt 171 with The insertion of gear hole 1411, fixed height position.Fixed latches 1621 and sliding are defined by the setting of gear regulatory region 162 The relative motion of bolt 1623 has effectively achieved the space of separation and insertion of the gear bolt 171 for gear part 101,103 Relationship realizes head rest height adjustment, so that assembly convenience, substantially reduces maintenance cost;And it is symmetrical arranged two gear bolts Height adjustment while 171 realization 20 both ends of head rest, the stability positioned when improving height adjustment.
In addition, when gear adjustment pin 171 makees opposite stretching motion under the driving of head rest drawing article 102, gear adjustment pin The distance of 171 telescopic slides is exactly distance between position X1 and position X2 in Fig. 3, with slide bolt 1623 along positioning groove 1624 When making linear slide, in being equidistant for the sliding realized along the direction that gear adjustment pin 171 is stretched.And positioning groove 1624 Sliding section and guide channel 1622 form angle, and the extending direction of guide channel 1622 and head rest fixed plate 301 adjust direction Unanimously.From the point of view of motion principle, gear bolt 171 is needed to realize to shrink to the direction of from left to right and be stretched, and head rest drawing article 102 Realize upward downwardly direction sliding, resultant direction and guide channel of the motion profile between the two on positioning groove 1624 1622 direction shapes form an angle, and angle is preferably sized to 20 °~30 ° so that the distance of stretch out and draw back of gear adjustment pin 171 with The ratio of the operating range of guide channel 1622 is moderate, optimizes harmony when mutual movement.
Particularly, the end symmetrical of gear regulatory region 162 is equipped with the section parallel with positioning groove 1624, symmetrical on the section Fixing bolt 1625 is provided with to realize the fixing assembling of head rest drawing article 102 and the second head rest matable assembly 30, the section Setting can guarantee that in height adjustment, the upward slide downward of gear regulatory region 162 will not make the second head rest matable assembly Head rest fixed plate 301 adjusts fixing piece 302 with head rest gear and occurs mutually to be displaced in 30.
Gear adjustment pin 171 is provided with the pin hole 1711 being connected with slide bolt 1623 and several U-type groove holes 1712. In assembly, screen body 1713 can be equipped with and be inserted into the U-type groove hole 1712 of gear adjustment pin 171, which can be with It is metal class or other materials.The setting in U-type groove hole 1712 simplifies assembly process, can also save material, mitigates The weight of gear adjustment pin 1712, makes it when making stretching motion, more laborsaving, improves the durability of device.
Gear adjusts limit body 322 and is fixedly mounted in head rest fixed plate 301 by Fixed latches 1621, Fixed latches 1621 extend into guide channel 1622;It includes the gear adjusting limit for enclosing installation gear regulatory region 162 that gear, which adjusts limit body 322, The gear for enclosing block 3223 and being installed on 3223 top of gear adjusting limit enclosing block adjusts limit body covering block 3222;It is assembling When, gear adjusts limit body covering block 3222 and passes through the bolt fixing assembling on Fixed latches 1621 and fixing bolt 1625;Shelves Position pin limit plate 312 is symmetrically arranged in the head rest fixed plate 301 of gear part 101,103 sides, and is equipped with U-shaped opening Slot 3121, gear adjustment pin 171 close to gear hole 1711 one end horizontal setting in U-shaped opening slot 3121.Gear adjusts limit Body 322 is equipped with U-type groove road 3224, and gear adjustment pin 171 adjusts one end horizontal setting of limit body 322 U-shaped close to gear Conduit 3224.
Gear adjustment pin 171 makees the distance of out movement in cavities, be exactly in Fig. 3 position X1 and position X2 away from From, greater than shift finger limit plate 312 at a distance from 141 forward surface of gear plate, be exactly in Fig. 1 position S1 to the distance of position S2.
Gear adjusts limit body 322 and is fixedly mounted on fin 311 by screw.Head rest fixed plate 301 is adjusted towards gear The integrally-formed fin 311 in the side of limit body 322, shift finger limit plate 312 are fastened on fin 311.Particularly, shift finger Limit plate 312 can be block and be also possible to template, and the installation with head rest fixed plate 301 is preferably integrally formed, and be conducive to fill One end when with gear adjustment pin 171 is fixed, and assembly difficulty is reduced.Gear adjusts limit body 322 and shift finger limit plate 312 divides It is not set to 171 both ends of gear adjustment pin, effectively improves the stability of device, avoids the danger slid occur in sliding Danger.
Gear adjusts projection in cavities formed in limit body 322 and forms barriers 3221.The barriers 3221 Setting can be effectively controlled gear adjustment pin 171 cavities do contractile motion be detached from when the limit of gear part 101,103, Excess shrinkage is avoided, the bending of 1623 inclination and distortion of slide bolt is caused even to fracture.In addition barriers 3221 can be arranged to Projection piece is also possible to the mode in type U-type groove hole to achieve the effect that barrier.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention Or change should all be included in the protection scope of the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of head rest height adjustment device of child safety seat, including the positioning of main casing (40), head rest (20), the first head rest Component (10), the second head rest matable assembly (30) and the gear part (101,103) being fixedly connected with main casing (40), it is special Sign is:
The first head rest positioning components (10) include head rest drawing article (102), gear adjustment pin (171), and the head rest pulls Part (102) slides up and down setting at head rest (20) back side, and the free end of the head rest drawing article (102) is led equipped with what is be arranged symmetrically Approaching channel (1622) and positioning groove (1624);
The second head rest matable assembly (30) include head rest fixed plate (301), head rest gear adjust fixing piece (302), it is described Head rest gear adjusts fixing piece (302) and is fixedly mounted on head rest fixed plate (301);
The first head rest positioning components (10) are mounted on the inside of main casing (40), and the second head rest matable assembly (30) encloses It is slidably connected in the outside of the first head rest positioning components (10), and with main casing (40), the gear part (101,103) and gear Adjustment pin (171) activity grafting, the gear adjustment pin (171) and the head rest drawing article (102) pass through slide bolt (1623) it connects, the slide bolt (1623) extends into positioning groove (1624);
When head rest drawing article (102) upward sliding, slide bolt (1623) makees linear slide along positioning groove (1624), driving Gear adjustment pin (171) makees opposite stretching motion, to be leaned on by gear adjustment pin (171) activity insertion gear part (101,103) In the gear hole (1411) for the gear plate (141) that nearly head rest fixed plate (301) side is formed.
2. head rest height adjustment device according to claim 1, it is characterised in that: the head rest drawing article (102) is equipped with Regulation handle (112).
3. head rest height adjustment device according to claim 2, it is characterised in that: the head rest drawing article (102) is equipped with Resetting apparatus (142).
4. head rest height adjustment device according to claim 3, it is characterised in that: the resetting apparatus (142) includes one Fixed fixture block (1421), one end are equipped with fixed hook (1422) and the other end is equipped with the reset spring for resetting hook (1424) (1423) and fixture block (1425) are resetted;
Fixed hook (1421) hook is held on fixed fixture block (1421), when regulation handle (112) pulls up, is resetted and is hung Hook (1424) hook, which is held in, to be resetted on fixture block (1425), and reset spring (1423) is shunk to pull direction, to drive slide bolt (1623) when being moved linearly in positioning groove (1624), so that gear adjustment pin (171) does opposite stretching motion to be detached from shelves The limit in position hole (1411), head rest drawing article (102) can slide up and down adjusting height;It is multiple when unclamping regulation handle (112) Position spring (1423) restores stationary state, resets hook (1424) disengaging and resets fixture block (1425), to drive slide bolt (1623) when making reset linear movement in positioning groove (1624), so that gear adjustment pin (171) does reversed stretching motion with weight New insertion gear hole (1411) realizes that the first head rest positioning components (10) reset.
5. head rest height adjustment device according to claim 2, it is characterised in that: the sliding area of the guide channel (1622) Between pulled with regulation handle (112) and adjust that direction is horizontal, the sliding section of the positioning groove (1624) and guide channel (1622) shape At angle.
6. head rest height adjustment device according to claim 5, it is characterised in that: the angle is 20 °~30 °.
CN201910171054.7A 2019-03-07 2019-03-07 A kind of head rest height adjustment device of child safety seat Pending CN109747493A (en)

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CN201910171054.7A CN109747493A (en) 2019-03-07 2019-03-07 A kind of head rest height adjustment device of child safety seat

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111923796A (en) * 2020-08-19 2020-11-13 镇江艺高儿童用品有限公司 Headrest adjusting device for child seat and control method thereof
CN112406646A (en) * 2019-08-21 2021-02-26 珠海弘点科技有限公司 Child safety seat

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CN202294368U (en) * 2011-09-15 2012-07-04 宁波大功婴童用品有限公司 Automobile child safety seat
US20150028648A1 (en) * 2013-07-26 2015-01-29 Recaro Child Safety Llc Seat with upwardly projecting harness straps
CN205010033U (en) * 2015-08-26 2016-02-03 常州安宝宝儿童座椅有限公司 Children's safety seat with side protect function
US20170021745A1 (en) * 2015-07-23 2017-01-26 Dorel Juvenile Group, Inc. Child restraint with energy management system
CN109050366A (en) * 2018-08-24 2018-12-21 常州市博聪儿童用品股份有限公司 A kind of child seat head rest regulating mechanism
CN209719338U (en) * 2019-03-07 2019-12-03 江苏欧思诺智能科技有限公司 A kind of head rest height adjustment device of child safety seat

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
CN202294368U (en) * 2011-09-15 2012-07-04 宁波大功婴童用品有限公司 Automobile child safety seat
US20150028648A1 (en) * 2013-07-26 2015-01-29 Recaro Child Safety Llc Seat with upwardly projecting harness straps
US20170021745A1 (en) * 2015-07-23 2017-01-26 Dorel Juvenile Group, Inc. Child restraint with energy management system
CN205010033U (en) * 2015-08-26 2016-02-03 常州安宝宝儿童座椅有限公司 Children's safety seat with side protect function
CN109050366A (en) * 2018-08-24 2018-12-21 常州市博聪儿童用品股份有限公司 A kind of child seat head rest regulating mechanism
CN209719338U (en) * 2019-03-07 2019-12-03 江苏欧思诺智能科技有限公司 A kind of head rest height adjustment device of child safety seat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112406646A (en) * 2019-08-21 2021-02-26 珠海弘点科技有限公司 Child safety seat
CN111923796A (en) * 2020-08-19 2020-11-13 镇江艺高儿童用品有限公司 Headrest adjusting device for child seat and control method thereof

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Application publication date: 20190514

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