CN112874397B - Stepless headrest adjusting device and child safety seat comprising same - Google Patents
Stepless headrest adjusting device and child safety seat comprising same Download PDFInfo
- Publication number
- CN112874397B CN112874397B CN202110251509.3A CN202110251509A CN112874397B CN 112874397 B CN112874397 B CN 112874397B CN 202110251509 A CN202110251509 A CN 202110251509A CN 112874397 B CN112874397 B CN 112874397B
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- piece
- locking
- headrest
- pulling
- driving
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- 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
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- 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
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
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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)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a stepless headrest adjusting device and a child safety seat comprising the same. The locking structure comprises a pulling piece and two locking pieces which are rotationally connected in the headrest, one ends of the two locking pieces lock the driving piece to move, and the other ends of the two locking pieces are attached to two sides of the pulling piece; when the pulling piece moves, the pulling piece drives at least one locking piece to rotate, so that the driving piece is unlocked, and the headrest can slide freely. The locking structure is adopted to lock the motion of the driving piece, and when the locking structure does not lock the motion of the driving piece any more, the headrest can be freely adjusted steplessly, so that the problems in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of automobile child seats, in particular to a headrest stepless adjusting device and a child safety seat comprising the same.
Background
Nowadays, many families have installed children's safety seat on motor vehicle back row seat, provide a comfortable, safe environment of taking for children, and current automobile-used children's safety seat mostly designs the headrest and is used for protecting children's head, and the height of headrest is all unable to be adjusted, consequently, children's head and headrest highly will keep at similar height, and children's head can lean on soft headrest like this, improves children's comfort level of taking the car.
However, when the current car children's seat that is applicable to children's height has been purchased to the elder, in case children's height is high, if still with preceding car children's seat, children's head is higher than the headrest, will award the head under this condition and lean on just can only facing upward on the headrest, takes the in-process for a long time, and children's neck will be tired very much, accumulates along with the time, triggers cervical spondylopathy even. Therefore, parents need to buy the adaptive automobile child seat when using the automobile child seat at different growth stages of children, and great waste is generated economically. Therefore, child seats with manually adjustable height headrests have appeared, which generally have several height gears for the parents to select the gear with the height most suitable for the height of the child's head for adjustment, but such adjustment has a jerky feeling, and generally the child leans against the headrest to obtain the most suitable height position of the headrest when the headrest is adjusted; when the child leans on the headrest for adjustment, the child can generate pause and frustration, the comfort level of the child is affected, and the headrest cannot be adjusted to the most suitable height by adjusting the gear.
Disclosure of Invention
The invention provides a stepless headrest adjusting device and a child safety seat comprising the same, aiming at the defects in the prior art.
In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides an electrodeless adjusting device of headrest, includes the seat body, sliding connection has the headrest on the seat body, still including driving the gliding driving piece of headrest, be equipped with the locking in the headrest the locking structure of driving piece free motion, locking structure removes the back to the driving piece locking, the headrest can freely slide on the seat body.
Preferably, the locking structure comprises a pulling piece and two locking pieces rotatably connected in the headrest, one ends of the two locking pieces lock the driving piece to move, and the other ends of the two locking pieces are attached to two sides of the pulling piece; when the pulling piece moves, the pulling piece drives at least one locking piece to rotate, so that the driving piece is unlocked, and the headrest can freely slide.
Further optimization, the two locking pieces are the same in shape, and the shape of one end, close to the pulling piece, of each locking piece is matched with the surface shape of the pulling piece; when the pulling piece moves, the two locking pieces are driven to rotate backwards, so that the bidirectional locking of the driving piece is released, and the headrest can freely slide up and down.
Preferably, the two locking pieces comprise a first locking piece and a second locking piece, the first locking piece is provided with a first convex part and a second convex part, and the bottom end of the pulling piece is positioned between the first convex part and the second convex part; when the pulling piece moves, the first locking piece or the second locking piece is only driven to rotate, so that the one-way locking of the driving piece is released, and the headrest can freely slide upwards or downwards.
Further preferably, when the pulling piece is pulled upwards, the first locking piece is locked, and the second locking piece rotates to release the one-way locking of the driving piece, so that the headrest can freely slide upwards; when the pulling piece is pressed downwards, the first locking piece rotates, and the second locking piece is locked, so that the one-way locking of the driving piece is released, and the headrest can freely slide downwards.
Further optimize, be connected with first spring part, the lock piece that resets between pulling piece and the headrest and be connected with the second spring part that resets between the headrest.
Further preferably, the pulling piece is provided with a handle groove.
Preferably, the driving member includes a gear and a rack engaged with the gear, and the rack is installed in the seat body.
Another invention of the present application is: a child safety seat comprises the headrest stepless adjusting device.
The invention has the beneficial effects that: 1. the locking structure is adopted to lock the movement of the driving piece, and the locking of the driving piece is released through the corresponding movement of the locking structure, so that the driving piece can move to drive the headrest to slide freely, the stepless adjustment of the headrest can be realized, and the technical problem of pause and frustration in the process of adjusting the height gear of the headrest in the prior art can be solved.
2. The locking structure adopts the matching between the locking sheets and the pulling piece, and can adopt two different implementation modes, wherein one mode is that the pulling piece is pulled to ensure that the two locking sheets do not lock the movement of the driving piece any more, and the headrest can be freely adjusted up and down; the other is that the pull piece is pulled to enable one locking piece to no longer lock the driving piece to move, and the headrest can be adjusted freely up or down (determined according to which locking piece does not lock the driving piece to move), so that various adjustment modes can be selected, and the application range is wide.
3. The pulling piece is provided with the handle groove, so that the pulling of parents is facilitated; the driving piece adopts a rack and gear mode, the rack can drive the headrest to slide up and down, and the locking piece can lock the bidirectional rotation or the unidirectional rotation of the gear, so that the device has a more reasonable structure and is easy to process and produce.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.
Fig. 1 is an exploded view of an embodiment 1 of a headrest stepless adjustment device according to the present invention;
FIG. 2 is a schematic view of the positional relationship of the pinion and rack of the present invention;
FIG. 3 is a schematic view of a lock state in embodiment 1;
FIG. 4 is a schematic view showing the positional relationship between the pulling member and the first return spring member in embodiment 1;
fig. 5 is a schematic view of the unlocked state in embodiment 1;
FIG. 6 is a schematic view showing that the gear can rotate only clockwise in embodiment 2;
FIG. 7 is a schematic view showing that the gear can rotate only counterclockwise in embodiment 2;
fig. 8 is a partially enlarged view of fig. 6.
In the figure: the seat comprises a seat body 1, a headrest 2, a locking structure 3, a pulling piece 4, a locking piece 5, a first locking piece 501, a second locking piece 502, a first return spring piece 6, a second return spring piece 7, a handle groove 8, a gear 9, a rack 10, a first convex part 11 and a second convex part 12.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments described herein without the need for inventive work, are within the scope of the present invention.
Embodiment 1 of the present invention provides a stepless headrest adjusting device, as shown in fig. 1 to 8, which includes a seat body 1, a headrest 2 slidably connected to the seat body 1, and a driving member for driving the headrest 2 to slide, wherein a locking structure 3 for locking the driving member to move freely is disposed in the headrest 2, and after the locking structure 3 releases the locking of the driving member, the headrest 2 can freely slide on the seat body 1.
The locking structure 3 comprises a pulling piece 4 and two locking pieces 5 which are rotatably connected in the headrest 2, one ends of the two locking pieces 5 lock the driving piece to move, and the other ends of the two locking pieces 5 are attached to two sides of the pulling piece 4; when the pulling piece 4 moves, the at least one locking piece 5 is driven to rotate, so that the locking of the driving piece is released, and the headrest 2 can slide freely.
The two locking sheets 5 are identical in shape, and the shape of one end, close to the pulling piece 4, of each locking sheet 5 is matched with the surface shape of the pulling piece 4; when the pulling piece 4 moves, the two locking pieces 5 are driven to rotate back to back, so that the bidirectional locking of the driving piece is released, and the headrest 2 can freely slide up and down. The rotation points of the two locking sheets 5 are arranged at two sides of the bottom end of the pulling piece 4.
A first reset spring part 6 is connected between the pulling part 4 and the headrest 2, and a second reset spring part 7 is connected between the locking piece 5 and the headrest 2.
The pulling part 4 is provided with a handle groove 8. The design of handle recess 8 makes things convenient for the head of a family's pulling.
The driving part comprises a gear 9 and a rack 10 meshed with the gear 9, and the rack 10 is installed in the seat body 1.
The bottom end of the locking piece 5 is provided with a clamping piece used for clamping the gear 9 to rotate, and the gear 9 can not rotate due to the fact that the gear 9 is clamped in one direction or two directions through the matching of the clamping piece and the surface teeth of the gear 9.
A child safety seat comprises the headrest 2 stepless adjusting device.
The specific operation steps of this example 1 are as follows: when the height of the headrest 2 needs to be adjusted, the handle groove 8 in the pulling piece 4 is pinched to be lifted upwards, and the two locking pieces 5 are driven by the pulling piece 4 to rotate oppositely, as shown in fig. 5, the locking piece 5 on the left rotates clockwise, and the locking piece 5 on the right rotates anticlockwise, so that the locking of the gear 9 is released, the gear 9 can freely rotate in the clockwise or anticlockwise direction, the headrest 2 can freely slide up and down on the seat body 1 at the moment, the rack 10 can slide correspondingly, and the stepless adjustment of the headrest 2 is achieved. When releasing the pulling piece 4, the pulling piece 4 resets under the action of the first reset spring piece 6 and the second reset spring piece 7, the gear 9 is locked by the two locking pieces 5 in the clockwise direction and the anticlockwise direction and cannot rotate, and the rack 10 correspondingly cannot move, so that the headrest 2 is locked.
Example 2, as shown in fig. 6 to 8, is different from example 1 in that: the two locking pieces 5 comprise a first locking piece 501 and a second locking piece 502, the first locking piece 501 is provided with a first convex part 11 and a second convex part 12, and the bottom end of the pulling piece 4 is positioned between the first convex part 11 and the second convex part 12; when the pulling member 4 moves, only the first locking piece 501 or the second locking piece 502 is driven to rotate, so that the unidirectional locking of the driving member is released, and the headrest 2 can freely slide upwards or downwards. As shown, the first protrusion 11 is above the bottom end of the pulling member 4, and the second protrusion 12 is below the bottom end of the pulling member 4.
When the pulling piece 4 is pulled upwards, the first locking piece 501 is locked, and the second locking piece 502 rotates to release the one-way locking of the driving piece, so that the headrest 2 can freely slide upwards; when the pulling member is pressed down, the first locking piece 501 rotates, and the second locking piece 502 is locked, so that the unidirectional locking of the driving member is released, and the headrest 2 can freely slide downwards.
The first convex part 11 is used for enabling only the second locking piece 502 to rotate when the pulling piece 4 moves upwards, and the first locking piece 501 cannot rotate due to the action of the first convex part 11; the second protrusion 12 is used for only the first locking piece 501 rotating under the action of the second protrusion 12 when the pulling member 4 is pressed downward, and the second locking piece 502 does not rotate because the second protrusion 12 is not arranged on the second locking piece 502.
The specific operation steps of this example 2 are as follows: when the height of the headrest 2 needs to be adjusted, the handle groove 8 in the pulling member 4 is pinched to be lifted upwards, the second locking plate 502 is driven by the pulling member 4 to rotate anticlockwise as shown in fig. 6, but the position of the first locking plate 501 is not changed at this time, but the gear 9 rotates clockwise, the first locking plate 501 cannot lock the gear 9, so that the first locking plate 501 can automatically yield approximately in the clockwise rotation process of the gear 9, so that the gear 9 can automatically rotate clockwise at this time, namely, the rack 10 can automatically slide upwards, therefore, the headrest 2 can be adjusted upwards, when the pulling member 4 is released, the pulling member 4 is in the first resetting spring member 6, the second locking plate 502 is reset under the action of the second resetting spring member 7, at this time, the gear 9 is locked by the two anticlockwise locking plates 5 in both clockwise and anticlockwise directions and cannot rotate, in this way, the toothed rack 10 is also correspondingly prevented from moving, so that the locking of the headrest 2 is achieved.
Similarly, when the handle groove 8 in the pulling member 4 is pinched and pressed downward, the first locking piece 501 is driven by the pulling member 4 to rotate clockwise as shown in fig. 7, but the position of the second locking piece 502 does not change at this time, the gear 9 may rotate counterclockwise, and the corresponding rack 10 may move downward, so that the downward adjustment of the headrest 2 may be realized at this time. When the pulling member 4 is released, the pulling member 4 is reset under the action of the first reset spring part 6 and the first locking piece 501 is reset under the action of the second reset spring part 7, at the moment, the gear 9 is locked by the two locking pieces 5 in clockwise and counterclockwise directions and cannot rotate, and the rack 10 cannot move correspondingly, so that the headrest 2 is locked.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A stepless headrest adjusting device comprises a seat body (1), wherein a headrest (2) is connected onto the seat body (1) in a sliding manner, and the stepless headrest adjusting device is characterized by further comprising a driving piece for driving the headrest (2) to slide, a locking structure (3) for locking the driving piece to move freely is arranged in the headrest (2), and after the locking structure (3) is used for unlocking the driving piece, the headrest (2) can slide freely on the seat body (1);
the locking structure (3) comprises a pulling piece (4) and two locking pieces (5) rotatably connected in the headrest (2), one ends of the two locking pieces (5) lock the driving piece to move, and the other ends of the two locking pieces (5) are attached to two sides of the pulling piece (4); when the pulling piece (4) moves, the at least one locking piece (5) is driven to rotate, so that the driving piece is unlocked, and the headrest (2) can slide freely;
the two locking pieces (5) comprise a first locking piece (501) and a second locking piece (502), a first convex part (11) and a second convex part (12) are arranged on the first locking piece (501), and the bottom end of the pulling piece (4) is positioned between the first convex part (11) and the second convex part (12);
when the pulling piece (4) is pulled upwards, the first locking piece (501) is locked, and the second locking piece (502) rotates to release the one-way locking of the driving piece, so that the headrest (2) can freely slide upwards; when the pulling piece is pressed downwards, the first locking piece (501) rotates, and the second locking piece (502) is locked, so that the one-way locking of the driving piece is released, and the headrest (2) can freely slide downwards.
2. The stepless headrest adjusting device as claimed in claim 1, characterized in that: when the pulling piece (4) moves, the first locking piece (501) or the second locking piece (502) is only driven to rotate, so that the one-way locking of the driving piece is released, and the headrest (2) can freely slide upwards or downwards.
3. A stepless adjustment device for a headrest according to any one of claims 1-2, characterized in that: a first reset spring part (6), a locking piece (5) and a second reset spring part (7) are connected between the pulling part (4) and the headrest (2).
4. A stepless adjustment device for a headrest according to any one of claims 1-2, characterized in that: the pulling piece (4) is provided with a handle groove (8).
5. A stepless adjustment device for a headrest according to any one of claims 1-2, characterized in that: the driving piece comprises a gear (9) and a rack (10) meshed with the gear (9), and the rack (10) is installed in the seat body (1).
6. A child safety seat, characterized by: comprising the headrest infinite adjustment device as recited in any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251509.3A CN112874397B (en) | 2021-03-08 | 2021-03-08 | Stepless headrest adjusting device and child safety seat comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251509.3A CN112874397B (en) | 2021-03-08 | 2021-03-08 | Stepless headrest adjusting device and child safety seat comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112874397A CN112874397A (en) | 2021-06-01 |
| CN112874397B true CN112874397B (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110251509.3A Active CN112874397B (en) | 2021-03-08 | 2021-03-08 | Stepless headrest adjusting device and child safety seat comprising same |
Country Status (1)
| Country | Link |
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| CN (1) | CN112874397B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203221904U (en) * | 2013-03-11 | 2013-10-02 | 麦克英孚(宁波)婴童用品有限公司 | Child safety chair for vehicle |
| CN204586566U (en) * | 2015-03-23 | 2015-08-26 | 宁波中哲儿童安全用品有限公司 | The adjustable safety chair seats of car for children of a kind of headrest |
| CN204749905U (en) * | 2015-05-19 | 2015-11-11 | 欧仕儿童用品(福建)有限公司 | Automobile children safety seat back adjustment mechanism |
| CN107199922A (en) * | 2016-03-16 | 2017-09-26 | 珠海阳光儿童用品有限公司 | Head rest adjusting device, seat main body and seat |
| CN107839557A (en) * | 2017-10-30 | 2018-03-27 | 何宏志 | It is capable of the child's safety seat for vehicle of flexible modulation |
| CN207790411U (en) * | 2017-12-25 | 2018-08-31 | 好孩子儿童用品有限公司 | Child safety seat |
| CN208682673U (en) * | 2018-07-16 | 2019-04-02 | 麦克英孚(宁波)婴童用品有限公司 | A kind of two-way release the lock head rest adjusting device and child safety seat |
| CN210554358U (en) * | 2019-05-16 | 2020-05-19 | 湖北丰洋汽车零部件有限公司 | Novel support for automobile seat headrest |
-
2021
- 2021-03-08 CN CN202110251509.3A patent/CN112874397B/en active Active
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| Publication number | Publication date |
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| CN112874397A (en) | 2021-06-01 |
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