CN216861239U - Headrest height adjusting structure and child safety seat - Google Patents
Headrest height adjusting structure and child safety seat Download PDFInfo
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- CN216861239U CN216861239U CN202220373707.7U CN202220373707U CN216861239U CN 216861239 U CN216861239 U CN 216861239U CN 202220373707 U CN202220373707 U CN 202220373707U CN 216861239 U CN216861239 U CN 216861239U
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Abstract
The utility model discloses a headrest height adjusting structure and a child safety seat, which comprise a pressing block component fixed on the inner side of a seat back and a headrest component arranged on the inner side of the seat back; the pressing block assembly comprises two pressing blocks which extend along the height of the chair back and are parallel to each other, and a plurality of gear grooves with sealed peripheries are formed in the inner sides of the pressing blocks; the headrest assembly comprises a headrest main body, a driving piece which is provided with a pulling plate and can move longitudinally, and two gear blocks which are provided with pins; the driving piece and the gear block are movably arranged on the headrest main body; two sides of the driving piece are respectively provided with a chute, and the gear block is provided with a guide rib capable of moving in the chute; the driving piece is moved upwards, and the gear block moves inwards to enable the plug pins to be separated from the gear groove through the matching of the guide ribs and the inclined grooves, so that the headrest can be in a moving state; the periphery of the gear groove is sealed, and the pins are prevented from being separated from the gear groove, so that the headrest height adjusting mechanism is more stable.
Description
Technical Field
The utility model relates to a child safety seat, in particular to a headrest height adjusting mechanism of the child safety seat.
Background
Usually be provided with the headrest in children's safety seat back of the chair inboard, be provided with height adjustment mechanism between headrest and the back of the chair, be for the headrest height that conveniently risees or reduces automobile-used children's safety seat, when children height is long high, children's seat's head protection position is corresponding risees in order to make children's head obtain better protection. The headrest adjusting device of the child safety seat on the market at present is complex in structure or inconvenient to operate.
CN 207809119U's headrest height adjusting mechanism and children safety seat, including the back of the chair, headrest and adjusting part, the logical groove that extends along back of the chair direction of height is seted up at the back of the second fender groove back of the chair, and the both sides back that leads to the groove is equipped with a plurality of first fender position grooves that extend along back of the chair direction of height.
Most of the existing headrest gear grooves are integrally arranged on the chair back, the volume of the chair back is large, and the molding of a mold is complex; and the notch of the shift gate is closed in only three directions and is open in the other side direction, which makes the shift block of the headrest not well defined after being inserted into the notch and may be removed from the open end of the notch, resulting in instability of the shift limit.
SUMMERY OF THE UTILITY MODEL
In view of the problem that the conventional gear groove cannot better limit the gear block on the headrest and further limit instability, the utility model aims to provide a headrest height adjusting mechanism with a stable structure and further provide a child safety seat with the adjusting structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the headrest height adjusting mechanism comprises a pressing block component fixed on the inner side of the chair back and a headrest component arranged on the inner side of the chair back;
the pressing block assembly comprises two pressing blocks which extend along the height of the chair back and are parallel to each other, and a plurality of gear grooves with sealed peripheries are formed in the inner sides of the pressing blocks;
the headrest assembly comprises a headrest main body, a driving piece which is provided with a pulling plate and can move longitudinally, and two gear blocks which are provided with pins; the driving piece and the gear block are movably arranged on the headrest main body;
two sides of the driving piece are respectively provided with a chute, and the gear block is provided with a guide rib capable of moving in the chute;
and the driving piece is moved upwards, and the gear block is moved inwards to enable the plug pins to leave the gear groove through the matching of the guide ribs and the inclined grooves, so that the headrest can be in a moving state.
The further preferable technical scheme of the utility model is as follows: be equipped with the spring between driving piece and the back of the chair, the spring orders about the driving piece downwards, and through the cooperation of direction muscle and chute, the outside removal of gear piece makes and participates in and inserts in the gear groove to lock the headrest subassembly on the back of the chair.
The further preferable technical scheme of the utility model is as follows: the pressing block is fixed on the chair back through a first screw.
The further preferable technical scheme of the utility model is as follows: the arm-tie includes arm-tie and lower arm-tie, and lower arm-tie integrated connection is in the driving piece, and the lower extreme of upper arm-tie passes through the second screwed connection with the upper end of lower arm-tie.
The further preferable technical scheme of the utility model is as follows: the upper end of the upper pulling plate is provided with a lifting handle;
the headrest main body comprises a lower middle plate and an upper main body, and the upper main body comprises an upper middle plate and two side headrest wing parts;
a through hole is formed between the lower middle plate and the upper middle plate;
the driving piece is mounted on the back of the lower middle part, and the pulling plate passes through the through hole from the back of the headrest main body and then is positioned in front of the upper middle plate;
the back of the upper middle part is provided with a notch, and the lifting handle is positioned in the notch.
The further preferable technical scheme of the utility model is as follows: the middle of the driving piece is provided with a longitudinal guide groove, the back of the headrest main body is provided with a guide post, and the guide post is positioned in the longitudinal guide groove.
The further preferable technical scheme of the utility model is as follows: the inner side of the upper main body is provided with headrest foam.
Another theme: the headrest height adjusting mechanism comprises a pressing block component fixed on the inner side of the chair back and a headrest component arranged on the inner side of the chair back;
the pressing block assembly comprises two pressing blocks which extend along the height of the chair back and are parallel to each other, and a plurality of gear grooves with sealed peripheries are formed in the inner sides of the pressing blocks;
the headrest assembly comprises a headrest main body, a driving piece which is provided with a pulling plate and can move longitudinally, and two gear blocks which are provided with pins; the driving piece and the gear block are movably arranged on the headrest main body;
a spring is arranged between the driving piece and the chair back, and the spring can always provide downward acting force for the driving piece;
two sides of the driving piece are respectively provided with a chute, and the gear block is provided with a guide rib capable of moving in the chute;
and the driving piece is moved upwards, and the gear block is moved inwards to enable the plug pins to leave the gear groove through the matching of the guide ribs and the inclined grooves, so that the headrest can be in a moving state.
The further preferable technical scheme of the utility model is as follows: the arm-tie includes arm-tie and lower arm-tie, and lower arm-tie integrated connection is in the driving piece, and the lower extreme of upper arm-tie passes through the second screwed connection with the upper end of lower arm-tie.
The further preferable technical scheme of the utility model is as follows: the upper end of the upper pulling plate is provided with a lifting handle;
the headrest main body comprises a lower middle plate and an upper main body, and the upper main body comprises an upper middle plate and two side headrest wing parts;
a through hole is formed between the lower middle plate and the upper middle plate;
the driving piece is mounted on the back of the lower middle part, and the pulling plate passes through the through hole from the back of the headrest main body and then is positioned in front of the upper middle plate;
the back of the upper middle part is provided with a notch, and the lifting handle is positioned in the notch.
Yet another subject is: a child safety seat includes a seat body assembly and a headrest height adjustment mechanism.
Compared with the prior art, the headrest height adjusting mechanism has the advantages that when the driving piece moves up and down on the headrest main body, the driving piece can drive the gear block to move, so that the pins on the gear block are driven to be inserted into or moved out of the gear grooves of the pressing block, the periphery of the gear grooves is sealed, the pins are prevented from falling out of the gear grooves, and the headrest height adjusting mechanism is more stable; and the driving piece cooperates with the direction muscle on the gear piece through the chute of seting up, can reciprocate the driving piece on the one hand and convert into about participating in, and the user operation can be convenient for in the reciprocating of on the other hand driving piece.
Drawings
FIG. 1 is a schematic view of a headrest assembly of the present invention in an elevated state;
FIG. 2 is a schematic view of a head restraint assembly of the present invention in a lowered condition;
FIG. 3 is a front view of the headrest height adjustment mechanism;
FIG. 4 is a schematic view of the back side of the headrest height adjustment mechanism;
FIG. 5 is a schematic view of the headrest height adjustment mechanism in a disassembled state;
FIG. 6 is a schematic structural view of the driving member, the shift block and the spring;
FIG. 7 is a schematic diagram of the overall structure of a pressure block in the pressure block assembly;
FIG. 8 is an enlarged view of a portion of the structure at A in FIG. 3;
fig. 9 is an enlarged view of a portion B of fig. 4.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the utility model.
It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
Traditional children's safety seat 100 its headrest height adjustment mechanism has the gear unstable, adjusts inconvenient technical problem, and based on this, this embodiment mainly explains children's safety seat 100's headrest height adjustment mechanism in detail, specifically as follows:
as shown in fig. 1 and 2, the child safety seat 100 includes a headrest height adjustment mechanism 101, and fig. 1 is a schematic view showing a state where the headrest assembly 30 is raised, and fig. 2 is a schematic view showing a state where the headrest assembly is lowered. The headrest height adjusting structure 101 comprises a pressure block assembly 20 fixed on the inner side of the chair back 101 and a headrest assembly 30 arranged on the inner side of the chair back 101; the pressing block assembly 20 comprises two pressing blocks 21 which extend along the height of the chair back 101 and are parallel to each other, and a plurality of gear grooves 22 which are closed at the periphery are formed in the inner sides of the pressing blocks 21.
The headrest assembly 30 comprises a headrest body 3a, a longitudinally movable driving member 3b provided with a pulling plate b1 and two shift blocks 3c provided with pins c 1; the driving piece 3b and the gear block 3c are movably arranged on the headrest main body 3 a. For the convenience of user operation, the driving member 3b moves in a vertical direction to coincide with the adjustment direction of the headrest assembly 30, improving the man-machine coordination.
Further, as shown in fig. 6 and 9, the driving member 3b is provided with a chute b2 on each side, and the shift position block 3c is provided with a guide rib c2 movable in the chute b 2.
When the driver 3b is driven, the driver 3b is moved upward, and the shift gate 3c is moved inward by the engagement of the guide rib c2 with the inclined groove b2, so that the pin c1 is separated from the shift gate 22, and the headrest body 3a can be moved.
The headrest height adjusting mechanism has the advantages that when the driving piece 3b moves up and down on the headrest main body 3a, the driving piece can drive the gear block 3c to move, so that the pin c1 on the gear block 3c is driven to be inserted into or moved out of the gear groove 22 of the pressing block, the periphery of the gear groove 22 is sealed, the pin c1 is prevented from being separated from the gear groove 22, and the headrest height adjusting mechanism 101 is more stable; and the driving piece 3b is matched with a guide rib c2 on the gear shift block 3c through an inclined groove b2, so that on one hand, the vertical movement of the driving piece 3b can be converted into the horizontal movement of the pin c1, and on the other hand, the vertical movement of the driving piece 3b can be convenient for a user to operate. More preferably, a spring 40 is provided between the actuator 3b and the seat back 101, the spring 40 being normally compressed so that its resilience urges the actuator 3b downwardly, and the shift block 3c is moved outwardly by engagement of the guide rib c2 with the angled slot b2 to allow the pin c1 to be inserted into the shift slot 22, thereby locking the headrest assembly 30 to the seat back 101. I.e., in the absence of an external force, the headrest assembly 30 is in the locked state. When the height of the headrest assembly 30 needs to be adjusted, a user needs to manually apply external force to adjust the height, and after the adjustment, the headrest assembly 30 can reset under the action of the resilience force of the spring 40, so that the man-machine coordination and the automation of the headrest height adjusting structure 101 are further improved.
As shown in fig. 4, the pressing piece 21 in the present embodiment is fixed to the seat back 101 by a first screw t 1.
As shown in fig. 6, the pulling plate b1 in this embodiment includes an upper pulling plate 01 and a lower pulling plate 02, the lower pulling plate 02 is integrally connected to the driving member 3b, and the lower end of the upper pulling plate 01 is connected to the upper end of the lower pulling plate 02 by a second screw t 2.
As shown in fig. 5, for the installation relationship between the headrest main body 3a and the driving member 3b, a handle 03 is provided at the upper end of the upper pulling plate 01; the headrest body 3a includes a lower middle plate a2 and an upper body a1, and the upper body a1 includes an upper middle plate a3 and both side headrest wings a 4; a via hole a5 is provided between the lower intermediate plate a2 and the upper intermediate plate a 3.
As shown in fig. 6, the lower pulling plate 02 has a bent section m such that the upper section of the lower pulling plate 02 is not aligned with the lower section of the lower pulling plate 02, and the upper pulling plate 01 connected to the upper section of the lower pulling plate 02 and the driving member 3b connected to the lower section of the lower pulling plate 02 are offset from each other. After the installation is completed, the lower pulling plate 02 passes through the through hole a5, the driving member 3b is mounted on the back of the lower middle plate a3, and the pulling plate b1 passes through the through hole a5 from the back of the headrest body 21 and is located on the front of the upper middle plate a 3.
The back of the upper middle plate a3 is provided with a notch a6, and the handle 03 is positioned in the notch a 6. When the height of the headrest assembly needs to be adjusted, a user only needs to lift the handle 03 upwards to drive the driving member 3b to move upwards, and then the pins c1 of the gear block 3c are driven to leave the gear slots 22, and at the moment, the headrest assembly 30 is in an unlocked state, and the height of the headrest assembly can be adjusted up and down. The force application direction of the user to the handle 03 is consistent with the moving track of the headrest assembly 30, so that the man-machine coordination relationship is improved, the user operation is facilitated, and the operation is faster.
The middle of the driving member 3b is provided with a longitudinal guide groove b3, the back of the headrest body 3a is provided with a guide post a7, and the guide post a7 is positioned in the longitudinal guide groove b 3. The longitudinal guide grooves b3 further improve the stability of the driving member 3b when moving up and down, and further improve the stability of the headrest assembly 30 when moving.
Preferably, as shown in fig. 5, in order to improve the comfort of the child when seated, a headrest foam a8 is provided inside the upper body a 1.
The inclined groove b2 formed in the driving piece 3b is matched with the guide rib c2 of the gear block 3c, so that the moving track of the gear block 3c is guided, the stability of the headrest height adjusting mechanism is improved, and the height adjusting process of the headrest assembly is faster. For further stability and adjustment efficiency of the headrest height adjustment mechanism, as shown in fig. 7 and 8, a stopper r is provided outside the shift position groove 22 to prevent the pin c1 of the shift position block 3c from escaping from the shift position groove 22, thereby further improving stability of the headrest assembly 30 in each shift position state.
As for the guiding post a7 and the guiding rib c2, as shown in fig. 9, a screw assembly is preferred, but other structures for facilitating guiding may be adopted.
The utility model aims to explain that when the driving piece 3b of the headrest height adjusting mechanism 101 moves up and down on the headrest main body 3a, the driving piece can drive the gear block 3c to move, so that the pin c1 on the gear block 3c is driven to be inserted into or moved out of the gear groove 22 of the pressing block, the periphery of the gear groove 22 is sealed, the pin c1 is prevented from being disengaged from the gear groove 22, and the headrest height adjusting mechanism 101 is more stable; and the driving piece 3b is matched with a guide rib c2 on the gear shift block 3c through an inclined groove b2, so that on one hand, the vertical movement of the driving piece 3b can be converted into the horizontal movement of the pin c1, and on the other hand, the vertical movement of the driving piece 3b can be convenient for a user to operate.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate the orientation or position relationship that the utility model is usually placed when using, and are based on the orientation or position relationship shown in the drawings or the orientation or position relationship shown in the drawings, which are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
The headrest height adjustment mechanism and the child safety seat provided by the present invention are described in detail, and the principle and the embodiment of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understanding the present invention and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (11)
1. The headrest height adjusting structure comprises a pressing block component fixed on the inner side of the chair back and a headrest component arranged on the inner side of the chair back; the pressing block assembly comprises two pressing blocks which extend along the height of the chair back and are parallel to each other, and a plurality of gear grooves with sealed peripheries are formed in the inner sides of the pressing blocks;
the headrest assembly comprises a headrest main body, a driving piece which is provided with a pulling plate and can move longitudinally, and two gear blocks which are provided with pins; the driving piece and the gear block are movably arranged on the headrest main body;
two sides of the driving piece are respectively provided with a chute, and the gear block is provided with a guide rib capable of moving in the chute;
and the driving piece is moved upwards, and the gear block is moved inwards to enable the plug pins to leave the gear groove through the matching of the guide ribs and the inclined grooves, so that the headrest main body can be in a moving state.
2. The headrest height adjusting structure as claimed in claim 1, wherein a spring is provided between the actuator and the seat back, the spring urging the actuator downward, and the guide rib is engaged with the inclined groove, so that the shift block is moved outward to insert the pin into the shift groove, thereby locking the headrest assembly to the seat back.
3. The headrest height adjustment structure according to claim 1, wherein said pressing piece is fixed to the seat back by a first screw.
4. The headrest height adjusting structure according to claim 1, wherein the pull plate includes an upper pull plate and a lower pull plate, the lower pull plate is integrally connected to the actuator, and a lower end of the upper pull plate is connected to an upper end of the lower pull plate by a second screw.
5. The headrest height adjustment structure according to claim 4, wherein
The upper end of the upper pulling plate is provided with a lifting handle;
the headrest main body comprises a lower middle plate and an upper main body, and the upper main body comprises an upper middle plate and two side headrest wing parts;
a through hole is formed between the lower middle plate and the upper middle plate;
the driving piece is mounted on the back of the lower middle part, and the pulling plate passes through the through hole from the back of the headrest main body and then is positioned in front of the upper middle plate;
the back of the upper middle part is provided with a notch, and the lifting handle is positioned in the notch.
6. The headrest height adjusting structure as claimed in claim 1, wherein a longitudinal guide groove is formed in the middle of the actuating member, and a guide post is formed on the rear surface of the headrest body, the guide post being positioned in the longitudinal guide groove.
7. The headrest height adjustment structure according to claim 5, wherein the upper body is provided at an inner side thereof with headrest foam.
8. The headrest height adjusting structure comprises a pressing block component fixed on the inner side of the chair back and a headrest component arranged on the inner side of the chair back; the pressing block assembly comprises two pressing blocks which extend along the height of the chair back and are parallel to each other, and a plurality of gear grooves with sealed peripheries are formed in the inner sides of the pressing blocks;
the headrest assembly comprises a headrest main body, a driving piece which is provided with a pulling plate and can move longitudinally, and two gear blocks which are provided with pins; the driving piece and the gear block are movably arranged on the headrest main body;
a spring is arranged between the driving piece and the chair back, and the spring can always provide downward acting force for the driving piece;
two sides of the driving piece are respectively provided with a chute, and the gear block is provided with a guide rib capable of moving in the chute;
and the driving piece is moved upwards, and the gear block is moved inwards to enable the plug pins to leave the gear groove through the matching of the guide ribs and the inclined grooves, so that the headrest can be in a moving state.
9. The headrest height adjustment structure according to claim 8, wherein the pull plate includes an upper pull plate and a lower pull plate, the lower pull plate is integrally connected to the actuator, and a lower end of the upper pull plate is connected to an upper end of the lower pull plate by a second screw.
10. The headrest height adjustment structure as claimed in claim 9, wherein
The upper end of the upper pulling plate is provided with a lifting handle;
the headrest main body comprises a lower middle plate and an upper main body, and the upper main body comprises an upper middle plate and two side headrest wing parts;
a through hole is formed between the lower middle plate and the upper middle plate;
the driving piece is mounted on the back of the lower middle part, and the pulling plate passes through the through hole from the back of the headrest main body and then is positioned in front of the upper middle plate;
the back of the upper middle part is provided with a notch, and the lifting handle is positioned in the notch.
11. A child safety seat comprising a seat body assembly and a headrest height adjustment arrangement as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220373707.7U CN216861239U (en) | 2022-02-23 | 2022-02-23 | Headrest height adjusting structure and child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220373707.7U CN216861239U (en) | 2022-02-23 | 2022-02-23 | Headrest height adjusting structure and child safety seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216861239U true CN216861239U (en) | 2022-07-01 |
Family
ID=82154267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220373707.7U Active CN216861239U (en) | 2022-02-23 | 2022-02-23 | Headrest height adjusting structure and child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216861239U (en) |
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2022
- 2022-02-23 CN CN202220373707.7U patent/CN216861239U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20230904 Address after: 246100 Liren West Road, Industrial Park, Huaining County, Anqing City, Anhui Province Patentee after: Anhui Yongchi Infant Technology Co.,Ltd. Address before: 246000 No.168, Liren West Road, industrial park, Huaining County, Anqing City, Anhui Province Patentee before: Anhui Yongchi Infant Intelligence Technology Co.,Ltd. |