CN109532581B - Child safety seat headrest adjusting device and child safety seat - Google Patents
Child safety seat headrest adjusting device and child safety seat Download PDFInfo
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- CN109532581B CN109532581B CN201710616196.0A CN201710616196A CN109532581B CN 109532581 B CN109532581 B CN 109532581B CN 201710616196 A CN201710616196 A CN 201710616196A CN 109532581 B CN109532581 B CN 109532581B
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- hanging plate
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- locking
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- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000013013 elastic material Substances 0.000 claims description 5
- 239000006261 foam material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 3
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920006327 polystyrene foam Polymers 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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention relates to a child safety seat headrest adjusting device and a child safety seat, wherein the headrest adjusting device comprises a hanging plate (1), a flexible sleeve and a locking and unlocking mechanism, the flexible sleeve covers the outside of the hanging plate (1) and forms a headrest together with the hanging plate (1), the hanging plate (1) is arranged on a backrest (2) of the child safety seat through the locking and unlocking mechanism, the height of the hanging plate (1) relative to the backrest (2) is adjustable, and the hanging plate (1) can be pulled upwards through one hand, and the unlocking of the locking and unlocking mechanism and the height adjustment of the hanging plate (1) can be simultaneously realized. The headrest adjusting device can effectively support the head through the hanging plate when a young child sits, so that the sitting safety is improved, the flexible sleeve covers the hanging plate, the sitting comfort and the buffering capacity can be improved, and the headrest formed by the hanging plate and the flexible sleeve is simple in structure and low in cost; the height of the headrest can be quickly and flexibly changed to adapt to young children with different heights, and meanwhile, the installation, the use and the individual customization of different head pillowcases are satisfied.
Description
Technical Field
The invention relates to the technical field of child safety devices of motor vehicles, in particular to a child safety seat headrest adjusting device and a child safety seat.
Background
The most widely used child car safety device on the motor vehicle is a child safety seat, the child safety seat can effectively improve child car safety, and in order to improve riding comfort and use safety coefficient when in use, the supporting and wrapping characteristics of the seat body are particularly considered when in design. Generally, a headrest is provided above a seat body, and in order to better protect the head of a child occupant, the headrest is designed in a U shape, and a thicker buffer material is used to fill the headrest portion and the two wings, for example, a polystyrene foam material is used for filling, which makes the headrest structure heavy and costly.
In order to adapt to the use demands of children passengers with different heights, a child safety seat with a headrest with an adjustable height appears in the prior art, and in one structural form, a pull ring is arranged above the headrest and is connected with a locking and unlocking mechanism through a braid. Under the state of use, the locking and unlocking mechanism keeps the headrest at a specific height position, when the height of the headrest needs to be adjusted, the external force is applied to the pull ring upwards, the locking and unlocking mechanism can be driven to unlock through the braid, and then the headrest is adjusted to a proper height by hands.
This structure, though can adjust the height of headrest, unblock and altitude mixture control need go on respectively through the operation to different parts for the altitude mixture control of headrest is comparatively loaded down with trivial details. Moreover, for a child occupant of 0 to 4 years old, because the height is low, the head of the child occupant is generally not higher than the seat body when sitting on the child safety seat, and even if the headrest of the existing safety seat is adjusted to the lowest limit position, the use requirement cannot be well met, and the head is difficult to form effective protection, so that a safety seat which can be suitable for the child occupant of the young age and can conveniently adjust the height of the headrest is needed to be developed.
Disclosure of Invention
The invention aims to provide a child safety seat headrest adjusting device and a child safety seat, which can enable a headrest part to better meet the use requirement of young children.
In order to achieve the above object, a first aspect of the present invention provides a child safety seat headrest adjusting device, including a hanging plate, a flexible sleeve, and a locking and unlocking mechanism, wherein the flexible sleeve covers the outside of the hanging plate and forms a headrest together with the hanging plate, the hanging plate is arranged on a front supporting surface of a backrest of the child safety seat through the locking and unlocking mechanism, and the hanging plate is height-adjustable relative to the backrest, and can be pulled upwards by a single hand to simultaneously unlock the locking and unlocking mechanism and adjust the height of the hanging plate.
Further, the locking and unlocking mechanism comprises a traction piece, one end of the traction piece in the height direction is connected with the hanging plate, the other end of the traction piece is connected with the locking and unlocking mechanism, and the traction piece can be driven to move when the hanging plate is pulled upwards so as to unlock the locking and unlocking mechanism.
Further, the device also comprises a bottom plate, the locking and unlocking mechanism is arranged on the bottom plate, a clamping matching structure is arranged between the traction piece and the bottom plate and used for forming clamping matching when the hanging plate is pulled upwards continuously after the locking and unlocking mechanism is unlocked, so that the traction piece drives the bottom plate to move upwards integrally, and the height of the hanging plate is adjusted.
Further, one of the traction piece and the bottom plate is provided with a first guide groove extending along the height direction, and the other one of the traction piece and the bottom plate is provided with a positioning block which can relatively move in the first guide groove so as to guide the movement of the traction piece.
Further, the positioning block and one end of the first guide groove, which is adjacent to each other in the height direction, form the clamping matching structure, and can be spaced by a preset distance in a locked state of the locking and unlocking mechanism, and contact with each other in an unlocked state of the locking and unlocking mechanism to form clamping matching.
Further, a second guide groove extending along the height direction is formed in one of the bottom plate and the hanging plate, and a positioning column is arranged on the other of the bottom plate and the hanging plate, and can relatively slide in the second guide groove so as to guide the movement of the hanging plate.
Further, the locking and unlocking mechanism further comprises a tensioning piece, guide wheels and a gear rod, two groups of discrete gear holes are respectively formed in the left side and the right side of the backrest along the height direction, one end of the tensioning piece is connected to the bottom end of the traction piece, the other end of the tensioning piece bypasses the guide wheels on the corresponding sides and then is connected with the gear rod, and the free end of the gear rod is locked when inserted into one of the gear holes and unlocked when separated from the gear holes.
Further, the backrest comprises two reinforcing pipes, the two reinforcing pipes are respectively arranged along the edges of the left side and the right side of the bottom plate, and a group of gear holes are respectively arranged on the wall surfaces, close to the bottom plate, of the two reinforcing pipes.
Further, the left and right sides on the bottom plate are respectively provided with a guide hole, the guide holes are provided with edges protruding towards the front of the child safety seat, and the guide holes are used for penetrating through the safety webbing.
Further, the hanging plate is integrally in a plate-shaped structure.
Further, the flexible sleeve is made of an elastic material with an energy absorption function.
Further, the elastic material is foam material.
Further, a cover plate is provided for covering the locking and unlocking mechanism to form a back rest surface for a child occupant.
To achieve the above object, a second aspect of the present invention provides a child safety seat including the child safety seat headrest adjusting apparatus of the above embodiment.
Based on the technical scheme, the hanging plate is arranged on the front supporting surface of the backrest of the child safety seat through the locking and unlocking mechanism, so that effective support can be formed for the head through the hanging plate when a child sits, the sitting safety is improved, the flexible sleeve covers the hanging plate, the sitting comfort and the buffering capacity can be improved, and the structure of the headrest formed by the hanging plate and the flexible sleeve is simple, and the cost is low; in addition, can realize unblock and link plate altitude mixture control simultaneously through single hand pulling link plate, can change the height of headrest more swiftly nimble in order to adapt to the young children of different heights, satisfy the installation of different head pillowcases and consumer's individual customization simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a cross-sectional view of a child safety seat headrest adjustment device of the present invention;
FIG. 2 is a schematic view of the external form of the child safety seat headrest adjusting apparatus of the present invention;
FIG. 3 is a schematic view of one embodiment of a hanger plate in a child safety seat headrest adjustment device of the present invention;
fig. 4 is a schematic view showing an internal structure of an embodiment of the headrest adjusting apparatus for child safety seats according to the present invention.
Description of the reference numerals
1. A hanging plate; 2. a backrest; 3. a cover plate; 4. a traction member; 5. a bottom plate; 6. a tensioning member; 7. a guide wheel; 8. an elastic element; 9. a reinforcing tube; 10. a gear lever; 11. a support part; 12. a first rectangular frame; 13. a second rectangular frame; 14. a first fixed interface; 15. a second guide groove; 16. a first fastener; 17. a second fastener; 31. a through groove; 41. a second fixed interface; 42. a first guide groove; 51. a protruding structure; 52. a guide hole; 53. a positioning block; 54. positioning columns; 91. gear hole.
Detailed Description
The present invention is described in detail below. In the following paragraphs, the different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless explicitly stated to be non-combinable. In particular, any feature or features may be combined with one or more other features may be desired and advantageous.
The terms "first," "second," and the like in the present invention are merely for convenience of description to distinguish between different constituent components having the same name, and do not denote a sequential or primary or secondary relationship.
In the description of the present invention, it is to be understood that terms of azimuth or positional relationship indicated by "front", "rear", "upper", "lower", "left" and "right", etc., all refer to the direction in which a child occupant sits in a motor vehicle seat. This definition is for convenience only as a matter of description of the invention and is not intended to indicate or imply that the device in question must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the scope of the invention.
In order to enable a child occupant to effectively protect the head of a child while sitting in a safety seat, the present invention provides an improved child safety seat headrest adjusting device. In one illustrative embodiment, referring to fig. 1-4, the child safety seat headrest adjustment device includes a hanger plate 1, a flexible sleeve, and a lock and unlock mechanism. Wherein, link plate 1 has replaced the headrest that sets up in the whole top of back among the prior art, establishes on the preceding supporting surface of children's safety seat back 2 through locking unlocking mechanism, has reduced the height of headrest from this, also can form effectual support to the head through link plate 1 when young children (0-4 years old for example) take, increases the security of taking. In order to improve riding comfort and buffering protection capability, the flexible sleeve is covered outside the hanging plate 1 and forms a headrest together with the hanging plate 1, the flexible sleeve is convenient to assemble and disassemble, and elastic materials with buffering and energy absorbing effects, such as foam soft cotton materials or other materials, can be adopted to save cost, and simultaneously, the installation and use of different head pillowcases and individual customization of consumers are met.
Preferably, the hanging plate 1 is in a plate-shaped structure as a whole, for example, in fig. 3, the hanging plate 1 is in a rectangular plate-shaped structure, and round corners are arranged at the periphery so as to avoid injury to children and passengers. The structure of the hanging plate 1 omits two side parts of the U-shaped headrest, can simplify the structure of the headrest, is convenient to install and easy to customize, and can replace hanging plates 1 with different shapes or sizes according to requirements. As shown in fig. 1, the hanging plate 1 can keep a certain distance from the backrest 2 during installation, so that a flexible sleeve is sleeved, and the edge of the flexible sleeve is accommodated in a gap between the hanging plate 1 and the backrest 2.
Moreover, in order to enable the headrest position to be more flexibly suitable for young children passengers with different heights, the height of the hanging plate 1 relative to the backrest 2 is adjustable, and the unlocking of the locking and unlocking mechanism and the height adjustment of the hanging plate 1 can be simultaneously realized by pulling the hanging plate 1 upwards by one hand, so that the adjustment is convenient and quick. The specific process is that the unlocking of the locking and unlocking mechanism is realized when the hanging plate 1 is directly pulled upwards by one hand, and then the height adjustment can be realized when the hanging plate 1 is continuously pulled upwards.
Compared with the mode of unlocking through the pull ring, the mode of using the hanging plate 1 as an operating piece during unlocking can optimize the stress in the unlocking and height adjusting operation process due to the fact that the force application area of the hand is increased, and the economy can be improved by canceling the pull ring and the braid in the prior art. In addition, the headrest has been moved up a distance during the process of pulling the link plate 1 to unlock itself, so that the subsequent further height adjustment amount of the link plate 1 can be reduced.
As shown in fig. 4, the locking and unlocking mechanism comprises a traction piece 4, wherein the upper end of the traction piece 4 in the height direction is connected with the hanging plate 1, and the lower end of the traction piece is connected with the locking and unlocking mechanism, so that the traction piece 4 can be driven to move when the hanging plate 1 is pulled upwards to unlock the locking and unlocking mechanism. The traction member 4 serves as a force transmission member that transmits an external force applied to the link plate 1 to the lock-unlock mechanism as an unlock force. This arrangement enables the hanger plate 1 to be used only for supporting and protecting the head of a child occupant, thereby reducing the area of the hanger plate 1. Preferably, the traction member 4 has a long rectangular structure, so that the traction member can move more stably when the hanging plate 1 is pulled.
Further, still referring to fig. 4, the headrest adjusting device of the present invention further includes a base plate 5, the locking and unlocking mechanism is disposed on the base plate 5, and is integrally located at the front portion of the base plate 5, and a clamping matching structure is disposed between the traction member 4 and the base plate 5. The headrest adjusting device realizes the height adjustment of the headrest by means of the linkage movement of the plurality of hard structural members, and the structural form is different from the scheme that the height of the headrest is changed by soft adjusting members such as woven belts and the like, so that the headrest can be reliably locked at a preset height position after the adjustment is finished, and the use safety of the child safety seat is improved.
When the child safety seat is in normal use, the locking and unlocking structure limits the bottom plate 5 and the backrest 2 in a locking state, when the height of the hanging plate 1 needs to be adjusted, the hanging plate 1 is pulled upwards to unlock the locking and unlocking mechanism, the bottom plate 5 is in a movable state relative to the backrest 2 in the height direction, and the clamping matching structure is used for forming clamping matching when the hanging plate 1 is pulled upwards continuously, so that the hanging plate 1 drives the bottom plate 5 to move upwards integrally through the traction piece 4, and the height adjustment of the hanging plate 1 is realized. After the adjustment to the desired height, the application of external force to the hanger plate 1 is stopped, and the locking and unlocking structure restricts the hanger plate 1 and the bottom plate 5 to the adjusted height position.
In order to improve the stability of the movement of the traction member 4 relative to the bottom plate 5 during unlocking, one of the traction member 4 and the bottom plate 5 is provided with a first guide groove 42 extending in the height direction, and the other is provided with a positioning block 53, and the positioning block 53 can relatively move in the first guide groove 42 so as to guide the movement of the traction member 4.
In the structure shown in fig. 4, a positioning block 53 is provided in the middle position of the upper region of the floor 5 in the seat width direction, the positioning block 53 is of a rectangular frame structure, a first guide groove 42 is provided in the middle of the traction member 4 in the height direction, and the positioning block 53 is provided in the first guide groove 42 in a penetrating manner. Since the headrest adjusting device reduces the height of the headrest, the positioning block 53 is provided at the middle position of the bottom plate 5 in the width direction to make the bottom plate 5 move smoothly, and no guide structure is required to be further provided at both side positions.
Further, the adjacent ends of the positioning block 53 and the first guide groove 42 in the height direction form a clamping matching structure, specifically, the bottom surface B of the positioning block 53 and the bottom surface a of the first guide groove 42 form a clamping matching structure, and the two surfaces can be spaced by a preset distance in a state of being locked by the locking and unlocking mechanism so as to provide a space for the movement of the traction member 4 during unlocking, and the preset distance can limit the movement distance of the hanging plate 1 during unlocking; when the hanging plate 1 is continuously pulled upwards after the locking and unlocking mechanism is unlocked, the bottom surface B of the positioning block 53 and the bottom surface A of the first guide groove 42 are in contact with each other to form a clamping fit, and external force applied to the hanging plate 1 can be transmitted to the bottom plate 5 through the traction piece 4, so that the bottom plate 5 moves along with the hanging plate 1 to realize height adjustment.
Further, in order to improve the stability of the movement of the hanging plate 1 during unlocking, one of the bottom plate 5 and the hanging plate 1 is provided with a second guide groove 15 extending along the height direction, and the other is provided with a positioning column 54, and the positioning column 54 can relatively slide in the second guide groove 15 so as to guide the movement of the hanging plate 1.
Specifically, referring to fig. 4, a positioning column 54 is provided in a rectangular frame structure as a positioning block 53 on the bottom plate 5, and the positioning column 54 is connected with four side walls of the rectangular frame by reinforcing ribs. As shown in fig. 3, the hanging plate 1 comprises a supporting part 11 for supporting the head, the supporting part 11 is in a flat plate structure, a first rectangular frame 12 is arranged on the back surface of the supporting part 11, a first fixing interface 14 is arranged in the upper area in the first rectangular frame 12, a second rectangular frame 13 is arranged in the lower area, the outer wall of the second rectangular frame 13 is connected with the first fixing interface 14 and the inner wall of the first rectangular frame 12 through reinforcing ribs, and a second guide groove 15 is arranged in the second rectangular frame 13. Correspondingly, a second fastening interface 41 is provided in the upper part of the pulling element 4.
When the hanging plate 1 is mounted, the hanging plate 1 is buckled on the traction piece 4, and the hanging plate 1 and the traction piece 4 can be fixed by penetrating the first fastening piece 16 into the first fixing interface 14 and the second fixing interface 41. The positioning post 54 passes through the second guide groove 15, and when the hanger plate 1 is pulled upward, the positioning post 54 slides in the second guide groove 15. In the unlocking state of the locking and unlocking mechanism, the hanging plate 1 is pulled continuously to enable the bottom surface B of the positioning block 53 and the bottom surface A of the first guide groove 42 to be in contact with each other to form clamping fit, and then the positioning column 54 moves to the bottom end of the second guide groove 15, so that force for driving the bottom plate 5 to move is applied to the positioning column 54 through the bottom end of the second guide groove 15, and the hanging plate 1 is assisted to drive the bottom plate 5 to move upwards.
Further, after the hanging plate 1 is installed, the end part of the positioning post 54 is locked through the second fastening piece 17, so that the hanging plate 1 is further limited, the stability of the movement of the hanging plate 1 is further improved, and the working reliability of the whole headrest adjusting mechanism is ensured.
The locking and unlocking structure in each of the above embodiments may adopt the structure shown in fig. 4, and the locking and unlocking mechanism further includes a tensioning member 6, a guide wheel 7 and a gear lever 10, wherein a set of tensioning members 6, guide wheels 7 and gear levers 10 are respectively disposed on the left and right sides of the bottom plate 5, and two sets of discrete gear holes 91 are respectively disposed on the left and right sides of the backrest 2 along the height direction, and the height adjustment of the headrest can be achieved by making the gear levers 10 pass through the gear holes 91 at different heights.
Taking a group of tensioning members 6, guide wheels 7 and gear levers 10 as an example, one end of each tensioning member 6 is connected to the bottom end of the traction member 4, and the other end of each tensioning member bypasses the corresponding guide wheel 7 and then is connected with the gear lever 10. The bottom plate 5 is provided with a frame structure, two side walls of the frame structure along the width direction of the safety seat are provided with positioning holes, and the gear lever 10 is arranged in the frame structure and two ends of the gear lever penetrate through the positioning holes respectively.
When no external force is applied to the hanging plate 1, the free end of the gear lever 10 is inserted into one of the gear holes 91 to realize locking after being inserted into the positioning hole on the outer side of the frame structure. When an upward force is applied to the hanging plate 1, the hanging plate 1 drives the traction piece 4 to move upwards, and the traction piece 4 pulls the tensioning piece 6 to move so as to drive the free end of the gear lever 10 to be separated from the gear hole 91, so that unlocking is realized.
Preferably, in order to make the force transmission of the tension member 6 reliable, a pressing plate is provided between the bottom end of the traction member 4 and the guide wheel 7 to move the tension member 6 in a predetermined track to prevent the escape. The tensioning member 6 may be a rope or chain like structure such as a wire rope.
Further, the gear lever 10 is sleeved with the elastic element 8, and the elastic element is located in the frame structure, so that when the hanging plate 1 is released, the gear lever 10 can automatically enter the corresponding gear hole 91 by means of the reset action of the elastic element 8.
In a preferred structural form, the backrest 2 includes two reinforcing pipes 9, the two reinforcing pipes 9 are respectively disposed along the edges of the left and right sides of the floor 5, both ends of the reinforcing pipes 9 may be fixed to the main body portion of the backrest 2 by fasteners such as screws, and straight pipes are formed on the length sections corresponding to the floor 5, and the lower length sections may be transited into an arc shape along with the shape of the seat body. Furthermore, a set of gear holes 91 are provided on the wall surfaces of the two reinforcing pipes 9 near the bottom plate 5.
The reinforcing pipe 9 is arranged on the seat body, so that the bending resistance of the seat body during sudden braking or vehicle collision can be enhanced, and the reinforcing ribs on the backrest 2 can be reduced on the basis of ensuring the structural strength of the seat body, so that the complexity and the die opening difficulty of the seat body are simplified; furthermore, the gear hole 91 is formed in the reinforcing pipe 9, so that the difficulty in forming holes can be reduced.
In addition, as the height of the headrest is reduced, the position of the safety webbing to restrain the shoulders of the child occupant is correspondingly reduced. As shown in fig. 4, guide holes 52 are provided on both left and right sides of the floor panel 5, respectively, the guide holes 52 having edges protruding toward the front of the child safety seat, the guide holes 52 being for threading the safety webbing. The flange structure provided on the guide hole 52 can play a guiding role when the safety webbing is worn, so that abrasion of the edge of the guide hole 52 to the safety webbing is reduced. In addition, protruding structures 51 are provided on the left and right sides of the upper edge of the bottom plate 5, respectively, to avoid interference with the protruding posts on the backrest 2 during sliding.
As shown in fig. 2, the headrest adjusting device further comprises a cover plate 3, wherein the cover plate 3 covers the bottom plate 5 and the traction member 4 and is used for covering the locking and unlocking mechanism to form a back leaning surface for children passengers. In addition, as shown in fig. 2, a through groove 31 is formed on the cover plate 3 at a position corresponding to the guide hole 52, preferably, the through groove 31 is a rectangular groove, the width of the rectangular groove is adapted to the lateral extension length of the guide hole 52, and the height needs to ensure that the guide hole 52 is prevented from being blocked in the whole range of the height adjustment of the hanging plate 1 driving the bottom plate 5, so as to facilitate the threading of the safety webbing.
In addition, the invention also provides a child safety seat, which comprises the child safety seat headrest adjusting device. When the child safety seat is used for a child member with a smaller age, the head of the child occupant can be effectively supported through the hanging plate arranged at the front part of the backboard, and the child safety seat has higher use comfort through the flexible sleeve sleeved outside the hanging plate; and to the user demand of different height children passenger, can also nimble swiftly adjust the headrest height, can improve child safety seat's convenient to use.
The above description is made in detail of a child safety seat headrest adjusting device provided by the present invention. The principles and embodiments of the present invention have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present invention and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (12)
1. The headrest adjusting device of the child safety seat is characterized by comprising a hanging plate (1), a flexible sleeve, a locking and unlocking mechanism and a bottom plate (5), wherein the flexible sleeve covers the outside of the hanging plate (1) and forms a headrest together with the hanging plate (1), the hanging plate (1) is arranged on a front supporting surface of a backrest (2) of the child safety seat through the locking and unlocking mechanism, the height of the hanging plate (1) relative to the backrest (2) is adjustable, and the hanging plate (1) can be pulled upwards through one hand to simultaneously unlock the locking and unlocking mechanism and adjust the height of the hanging plate (1); the locking and unlocking mechanism comprises a traction piece (4), one end of the traction piece (4) in the height direction is connected with the hanging plate (1), the other end of the traction piece is connected with the locking and unlocking mechanism, and the traction piece (4) can be driven to move when the hanging plate (1) is pulled upwards so as to unlock the locking and unlocking mechanism; the locking and unlocking mechanism is arranged on the bottom plate (5), a clamping matching structure is arranged between the traction piece (4) and the bottom plate (5) and used for forming clamping matching when the hanging plate (1) is pulled upwards continuously after the locking and unlocking mechanism is unlocked, so that the traction piece (4) drives the bottom plate (5) to move upwards integrally, and the height of the hanging plate (1) is adjusted.
2. Child safety seat headrest adjusting device according to claim 1, characterized in that one of the traction element (4) and the base plate (5) is provided with a first guide groove (42) extending in height direction, the other one is provided with a positioning block (53), the positioning block (53) being relatively movable in the first guide groove (42) for guiding the movement of the traction element (4).
3. The headrest adjusting device of the child safety seat according to claim 2, wherein the positioning block (53) and the first guide groove (42) are formed at the adjacent ends in the height direction with the click fit structure capable of being spaced apart by a predetermined distance in a locked state of the lock unlocking mechanism and brought into contact with each other to form the click fit in an unlocked state of the lock unlocking mechanism.
4. Child safety seat headrest adjusting device according to claim 1, characterized in that one of the base plate (5) and the suspension plate (1) is provided with a second guide groove (15) extending in the height direction, and the other is provided with a positioning post (54), which positioning post (54) is relatively slidable in the second guide groove (15) for guiding the movement of the suspension plate (1).
5. Child safety seat headrest adjusting device according to claim 1, characterized in that the locking and unlocking mechanism further comprises a tensioning member (6), a guide wheel (7) and a gear lever (10), wherein two groups of discrete gear holes (91) are respectively arranged on the left side and the right side of the backrest (2) along the height direction, one end of the tensioning member (6) is connected to the bottom end of the traction member (4), the other end of the tensioning member bypasses the guide wheel (7) on the corresponding side and is connected with the gear lever (10), and the free end of the gear lever (10) is locked when being inserted into one of the gear holes (91) and unlocked when being separated from the gear hole (91).
6. The headrest adjusting device for the child safety seat according to claim 5, further comprising a bottom plate (5), wherein the locking and unlocking mechanism is arranged on the bottom plate (5), the backrest (2) comprises two reinforcing pipes (9), the two reinforcing pipes (9) are respectively arranged along the edges of the left side and the right side of the bottom plate (5), and a group of gear holes (91) are respectively formed in the wall surfaces, close to the bottom plate (5), of the two reinforcing pipes (9).
7. Child safety seat headrest adjusting device according to claim 1, characterized in that the left and right sides on the base plate (5) are provided with guide holes (52) respectively, the guide holes (52) have edges protruding towards the front of the child safety seat, and the guide holes (52) are used for threading safety webbing.
8. Child safety seat headrest adjusting device according to claim 1, characterized in that the suspension plate (1) is of plate-like structure as a whole.
9. The child safety seat headrest adjusting device according to claim 1, wherein the flexible sleeve is made of an elastic material having an energy absorbing effect.
10. The child safety seat headrest adjusting device according to claim 9, wherein the elastic material is a foam material.
11. Child safety seat headrest adjustment device according to claim 1, characterized by a cover plate (3), which cover plate (3) is used to cover the locking and unlocking mechanism to form a back rest surface for child occupants.
12. A child safety seat comprising the child safety seat headrest adjusting device according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616196.0A CN109532581B (en) | 2017-07-26 | 2017-07-26 | Child safety seat headrest adjusting device and child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710616196.0A CN109532581B (en) | 2017-07-26 | 2017-07-26 | Child safety seat headrest adjusting device and child safety seat |
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| Publication Number | Publication Date |
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| CN109532581A CN109532581A (en) | 2019-03-29 |
| CN109532581B true CN109532581B (en) | 2024-01-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201333953Y (en) * | 2008-12-30 | 2009-10-28 | 宁波均胜工业有限公司 | Infant safety chair headrest adjusting mechanism |
| CN202541370U (en) * | 2012-04-26 | 2012-11-21 | 江苏幸运宝贝安全装置制造有限公司 | Headrest regulating device of vehicle-mounted children automobile safety restraint system |
| CN205326850U (en) * | 2016-01-19 | 2016-06-22 | 常州市博聪儿童用品股份有限公司 | Automobile children safety seat with adjustable headrest height |
| CN205523792U (en) * | 2016-01-20 | 2016-08-31 | 麦克英孚(宁波)婴童用品有限公司 | Headrest slide rail mechanism |
| CN205970956U (en) * | 2016-08-23 | 2017-02-22 | 珠海阳光儿童用品有限公司 | Head rest adjusting device , headrest integrated configuration, seat main part and seat |
| CN206983791U (en) * | 2017-07-26 | 2018-02-09 | 珠海阳光儿童用品有限公司 | Child safety seat headrest adjusting means and child safety seat |
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2017
- 2017-07-26 CN CN201710616196.0A patent/CN109532581B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201333953Y (en) * | 2008-12-30 | 2009-10-28 | 宁波均胜工业有限公司 | Infant safety chair headrest adjusting mechanism |
| CN202541370U (en) * | 2012-04-26 | 2012-11-21 | 江苏幸运宝贝安全装置制造有限公司 | Headrest regulating device of vehicle-mounted children automobile safety restraint system |
| CN205326850U (en) * | 2016-01-19 | 2016-06-22 | 常州市博聪儿童用品股份有限公司 | Automobile children safety seat with adjustable headrest height |
| CN205523792U (en) * | 2016-01-20 | 2016-08-31 | 麦克英孚(宁波)婴童用品有限公司 | Headrest slide rail mechanism |
| CN205970956U (en) * | 2016-08-23 | 2017-02-22 | 珠海阳光儿童用品有限公司 | Head rest adjusting device , headrest integrated configuration, seat main part and seat |
| CN206983791U (en) * | 2017-07-26 | 2018-02-09 | 珠海阳光儿童用品有限公司 | Child safety seat headrest adjusting means and child safety seat |
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| CN109532581A (en) | 2019-03-29 |
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