CN203637617U

CN203637617U - Adjusting mechanism for headrest of child safety seat

Info

Publication number: CN203637617U
Application number: CN201320742247.1U
Authority: CN
Inventors: 廖燕锋; 王吉平; 田维玖
Original assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Current assignee: Ningbo Mybaby Baby Products Manufacturing Co Ltd
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2014-06-11
Anticipated expiration: 2023-11-22

Abstract

The utility model discloses an adjusting mechanism for the headrest of a child safety seat. The adjusting mechanism is infant and children equipment applicable to the child safety seat to adjust the lifting height of the headrest to adapt to children of all ages. The adjusting mechanism comprises segmented seats, segmented teeth, a segmented shaft and a lifting adjusting device; the lifting adjusting device comprises a fixed plate, an adjusting piece, a pressure spring, a drawstring and the like; the segmented shaft and the segmented teeth are engaged or disengaged through the driving of the drawstring, so that the locking or lifting adjusting of the headrest can be realized, and the improved adjusting mechanism with the structure has the advantages of compact design, simplicity in operation, adjusting reliability and the like.

Description

Infant safety chair headrest adjusting mechanism

Technical field

The utility model relates to the regulating mechanism that a kind of lift head leans on, and specifically refers to the headrest adjusting mechanism being applicable on child safety seat.

Background technology

Child safety seat is be a kind ofly installed on car seat for children's ride-on and have the baby child equipment of safe constraint function; it can fetter children in the time getting into an accident; ensure to greatest extent a kind of seat of children riding safety; child safety seat generally includes seat and the base of split-type design; base is first fixed on automotive seat through safety strap colligation; and then on base plug-in mounting seat; and the chair back top of seat also can be designed the head rest of an adjustable up-down conventionally, the lift adjustment of this head rest is mainly the use needs in order to adapt to all age group children.At present, the child safety seat of selling on market, the structure of its headrest adjusting mechanism is very many, and as " automobile children safety chair headrest adjusting mechanism " that disclosed China Patent No. is 200820037452.7, it has disclosed the headrest adjusting mechanism that a kind of plate coordinates segmentation tooth to regulate; Disclosed China Patent No. is 201120485026.1 " a kind of child safety seat using on automobile ", and it has disclosed the headrest adjusting mechanism that a kind of screw regulates; Disclosed China Patent No. is 201320127358.1 " child safety seat ", and it has disclosed the headrest adjusting mechanism that a kind of rod-pulling type regulates.The disclosed headrest adjusting mechanism of above-mentioned patent has different separately occupation modes, and along with people are for the continuous concern of children riding safety, can on safety chair seats of car for children, release headrest adjusting mechanism more, that there is different structure and operating mode, also will inevitably be subject to consumers in general's welcome.

Summary of the invention

Goal of the invention of the present utility model be to overcome the defect of prior art and provide a kind of compact conformation, simple to operate, regulate failure-free infant safety chair headrest adjusting mechanism.

Goal of the invention of the present utility model realizes by following technical proposal:

A kind of infant safety chair headrest adjusting mechanism, comprises the head rest at the chair back top that is arranged on seat; The described chair back is provided with two segmentation seats that be arranged in parallel, is equipped with symmetrically arranged waveform segmentation tooth on each segmentation seat; Between two described segmentation seats, be also provided with segmentation axle; Described head rest back is provided with operation described segmentation axle two ends and engages respectively elevation and subsidence regulating device equipped or that depart from the segmentation tooth of two segmentation seats, described elevation and subsidence regulating device comprises the adapter plate that is arranged on head rest bottom, this adapter plate is provided with the regulating part of installing along the upper and lower slippage of adapter plate, in this regulating part, be provided with one end pushing tow on adapter plate, the stage clip of other end pushing tow on regulating part; Described regulating part side is provided with bandy arcuate socket, and described segmentation axle is movable to be passed and be located in this arcuate socket; On described regulating part, be connected with drawstring, the outer dew of this drawstring upper end stretched head.

The slippage mounting structure of described regulating part and adapter plate is to be respectively equipped with slide block in regulating part both sides, and corresponding being provided with on adapter plate with described slide block made the equipped slideway of slippage.

Described adapter plate is provided with press spring base, and described stage clip one end pushing installation is on this press spring base.

Described adapter plate is provided with two symmetrical permanent seats of installing, and on each permanent seat, is equipped with cross-drilled hole, and described segmentation axle is movable successively to be passed and be located in arcuate socket and cross-drilled hole.

Described adapter plate top is extended with fastener, is correspondingly provided with fastener and makes the equipped adapter shaft of snapping in head rest bottom.

Compared with prior art, the utility model mainly designed a structure different, the elevation and subsidence regulating device that can be applicable to lifting infant safety chair headrest, this elevation and subsidence regulating device is to be made up of adapter plate, regulating part, stage clip, drawstring etc., drive segmentation axle engage equipped with segmentation tooth or depart from by drawstring, thereby realize locking or the lift adjustment of head rest, that the structure after improvement also has is compact to design, simple to operate, regulate the advantages such as reliable.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the three-dimensional exploded view of Fig. 1.

Fig. 3 is that the utility model is installed to the sectional structure schematic diagram on seat.

Fig. 4 is the A place enlarged drawing of Fig. 3.

Fig. 5 is the structural representation that the utility model is installed on seat, head rest is adjusted to lower.

Fig. 6 is the structural representation that the utility model is installed on seat, head rest is adjusted to eminence.

Detailed description of the invention

Below in conjunction with above-mentioned accompanying drawing and adopt specific embodiment to be described in detail again the utility model.

As shown in Fig. 1 ~ Fig. 6,1. head rest, 11. adapter shafts, 2. segmentation seat, 21. segmentation teeth, 3. segmentation axle, 4. elevation and subsidence regulating device, 41. adapter plates, 411. slideways, 412. press spring bases, 413. fasteners, 42. regulating parts, 421. arcuate sockets, 422. slide blocks, 43. permanent seats, 431. cross-drilled holes, 44. drawstrings, 45. stage clips, 5. seat.

Infant safety chair headrest adjusting mechanism, it is a kind of virgin equipment of baby that the enterprising wardrobe of child safety seat use to adapt to all age group children by 1 high and low lift adjustment that is applied to, head rest 1 is arranged on the chair back top of seat 5, and this regulating mechanism is arranged between head rest 1 and the chair back conventionally.

On the described chair back, chair back front is provided with two segmentation seats 2 that be arranged in parallel, 21, two the segmentation teeth of segmentation tooth that are equipped with a undulate on each segmentation seat are just in time symmetric relation; Between two described segmentation seats 2, be provided with segmentation axle 3, this segmentation axle is to be operated by the elevation and subsidence regulating device 4 that is arranged on head rest 1 back, and makes segmentation axle 3 two ends form and engage position relationship equipped or that depart from the segmentation tooth 21 on two segmentation seats 2 respectively.Engage while being equipped with when segmentation axle 3 two ends and segmentation tooth 21 forms, the relative seat 5 of head rest 1 forms position and fixes and cannot regulate; In the time of segmentation axle 3 two ends and the 21 formation disengaging of segmentation tooth, the relative seat 5 of head rest 1 can carry out high and low lift adjustment.

Described elevation and subsidence regulating device 4 comprises the adapter plate 41 that is located at head rest bottom, connection structure between this adapter plate and head rest 1 is to be provided with upwardly extending semicircle fastener 413 in adapter plate 41 both sides, top, the corresponding adapter shaft 11 that is provided with conjoined structure in head rest 1 bottom, fastener 413 snappings are fitted on this adapter shaft 11, can make to form and be flexibly connected between adapter plate 41 and head rest 1.

Described adapter plate 41 is rectangular-shaped plates, be provided with two slideways that be arranged in parallel 411 at middle part, the adapter plate back side, one regulating part 42 both sides are respectively equipped with slide block 422, this regulating part is fitted in two slideways 411 by slide block 422 slippages of both sides, and then makes regulating part 42 to do upper and lower slippage along adapter plate 41; Described between two slideways 411, be provided with a protruding press spring base 412, in regulating part 42, form cavity, in cavity, be provided with stage clip 45, this stage clip upper end pushing installation is on described press spring base 412, lower end pushing tow is on regulating part 42, therefore can give 42 1 of regulating parts downward thrust all the time through stage clip 45; Described regulating part 42 both sides are respectively equipped with that shape is identical and be the arcuate socket 421 that left and right level connects, and this arcuate socket is a bandy slotted eye, and adapter plate 41 is pressed close in arcuate socket upper end, and arcuate socket 421 lower ends are outwardly-bent and away from adapter plate 41; Described regulating part 42 tops are connected with drawstring 44, and this drawstring is the operating unit of whole head rest lift adjustment, and its upper end stretched head exposes by 1 so that drawing operation.

Described adapter plate 41 both sides, top are respectively equipped with the permanent seat 43 being arranged symmetrically with, on each permanent seat, be equipped with a pair of cross-drilled hole 431, cross-drilled hole 431 structures on each permanent seat 43 are identical and all in the same horizontal line, described segmentation axle 3 middle part activities are located in the arcuate socket 421 of regulating part 42, segmentation axle 3 two ends respectively movable through after the cross-drilled hole 431 on two permanent seats 43, again with the chair back on two segmentation teeth 21 form equipped.

The head rest 1 that the utility model both can be used on seat 5 regulates, also the head rest 1 can be used on hand basket regulates, its mode of operation is: the regulating part 42 under normality is subject to stage clip 45 pushing tows downward, now segmentation axle 3 is positioned at arcuate socket 421 upper ends of regulating part 42 both sides, also be positioned at cross-drilled hole 431 the inners on permanent seat 43 simultaneously, segmentation axle 3 is now pressed close on adapter plate 41, therefore segmentation axle 3 two ends will be engaged in two segmentation teeth 21 that are fitted in two segmentation seats 2, the high and low lifting of head rest 1 cannot regulate, and its relative seat 5 forms position fixed relationship, when upwards lifting drawstring 44, and then when overcoming stage clip 45 elastic force and pulling regulating part 42 to move up as straight line along adapter plate 41, segmentation axle 3 gradually slippage to arcuate socket 421 lower ends of regulating part 42 both sides, also simultaneously slippage is to cross-drilled hole 431 outer ends on permanent seat 43, segmentation axle 3 is now away from adapter plate 41, therefore segmentation axle 3 two ends will with two segmentation seats 2 on two segmentation teeth 21 depart from, continuing to pull drawstring 44 to carry out height with regard to driving whole head rest 1 upwards to promote regulates, each segmentation tooth 21 is as a height of lift, until head rest 1 is promoted to proper height, now unclamp the pulling force on drawstring 44, under stage clip 45 effects, driving segmentation axle 3 to reset and reentering segmentation tooth 21 engages equipped, head rest 1 can be formed to locking at new location.

The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.

Claims

1. an infant safety chair headrest adjusting mechanism, comprises the head rest (1) at the chair back top that is arranged on seat (5); The described chair back is provided with two segmentation seats (2) that be arranged in parallel, is equipped with symmetrically arranged waveform segmentation tooth (21) on each segmentation seat; Between described two segmentation seats (2), be also provided with segmentation axle (3); Described head rest (1) back is provided with operation described segmentation axle (3) two ends and engages respectively elevation and subsidence regulating device (4) equipped or that depart from the segmentation tooth (21) of two segmentation seats (2), it is characterized in that described elevation and subsidence regulating device (4) comprises the adapter plate (41) that is arranged on head rest (1) bottom, this adapter plate is provided with the regulating part (42) of installing along the upper and lower slippage of adapter plate, in this regulating part, be provided with one end pushing tow upper at adapter plate (41), the stage clip (45) of other end pushing tow on regulating part (42); Described regulating part (42) side is provided with bandy arcuate socket (421), and described segmentation axle (3) is movable to be passed and be located in this arcuate socket (421); On described regulating part (42), be connected with drawstring (44), this drawstring upper end stretched head exposes by (1).

2. infant safety chair headrest adjusting mechanism according to claim 1, it is characterized in that described regulating part (42) and the slippage mounting structure of adapter plate (41) are to be respectively equipped with slide block (422) in regulating part (42) both sides, corresponding being provided with on adapter plate (41) with described slide block (422) made the equipped slideway of slippage (411).

3. infant safety chair headrest adjusting mechanism according to claim 1, is characterized in that described adapter plate (41) is provided with press spring base (412), and described stage clip (45) one end pushing installation is on this press spring base (412).

4. infant safety chair headrest adjusting mechanism according to claim 1, it is characterized in that described adapter plate (41) is provided with two symmetrical permanent seats (43) of installing, on each permanent seat, be equipped with cross-drilled hole (431), described segmentation axle (3) is movable successively to be passed and is located in arcuate socket (421) and cross-drilled hole (431).

5. according to the infant safety chair headrest adjusting mechanism described in claim 1 ~ 4 any one, it is characterized in that described adapter plate (41) top is extended with fastener (413), be correspondingly provided with fastener (413) and make the equipped adapter shaft of snapping (11) in head rest (1) bottom.