CN219769695U - Headrest adjusting mechanism of child safety seat - Google Patents
Headrest adjusting mechanism of child safety seat Download PDFInfo
- Publication number
- CN219769695U CN219769695U CN202321011611.7U CN202321011611U CN219769695U CN 219769695 U CN219769695 U CN 219769695U CN 202321011611 U CN202321011611 U CN 202321011611U CN 219769695 U CN219769695 U CN 219769695U
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- headrest
- positioning
- handle
- adjusting mechanism
- transmission plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Seats For Vehicles (AREA)
Abstract
The utility model relates to a headrest adjusting mechanism of a child safety seat, which comprises a chair back, a headrest and a headrest height adjusting mechanism, wherein the headrest height adjusting mechanism comprises: the positioning grooves are arranged on the chair back and are arranged along the length direction of the chair back; a handle in sliding connection with the headrest; the transmission plate is connected with the handle and can move along with the movement of the handle; the positioning key is movably connected to the headrest, can be contacted with and controlled by the transmission plate, can move relative to the headrest under the control of the lifting handle and the transmission plate so as to have a locking state and an unlocking state, and is clamped into any one positioning groove under the action of the transmission plate in the locking state so as to lock the relative positions of the headrest and the chair back; and when the lifting handle is lifted, the positioning key is in an unlocking state, and the positioning key moves out of the positioning groove under the action of the transmission plate, so that the headrest can move up and down relative to the chair back.
Description
Technical Field
The utility model relates to the technical field of child safety seats, in particular to a headrest adjusting mechanism of a child safety seat.
Background
In order to protect the safety of children in automobiles, many countries legislation prescribes that a child safety seat needs to be arranged in the automobile, and the restraint of the child safety seat to the body of the child is utilized to ensure the safety of the child in taking the automobile. Child safety seats are often provided with various adjustment structures to allow adjustment of the seat to improve the comfort of the seat. Considering that children can increase in height along with the increase of age, or in order to adapt to children of different heights to take, the child safety seat is last to be furnished with the headrest regulator more to the height of convenient regulation headrest, thereby adapt to children of different heights and take.
The utility model discloses a headrest adjusting mechanism of a child safety seat, which comprises a seat back and a headrest, wherein a connecting plate is connected and arranged at the top of the seat back, and positioning blocks protruding out of the connecting plate are arranged on the connecting plate at intervals. The headrest is provided with a positioning groove matched with the connecting plate, the positioning groove is communicated to the bottom of the headrest, a supporting arm is connected and arranged between two side walls of the positioning groove, the connecting plate can pass through a gap between the supporting arm and the positioning groove, and a limit key which can be adapted to be sprung in a positioning block interval is connected and arranged on the supporting arm. However, when the height of the seat is adjusted, the limit key is lifted by one hand, the operation can be completed by pulling the headrest by the other hand, and the operation is complex.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a headrest adjusting mechanism of a child safety seat capable of being adjusted by one hand aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a children's safety seat's headrest adjustment mechanism, includes the back of the chair, with the headrest of back of the chair swing joint to and set up the headrest high adjustment mechanism that is used for adjusting the relative position between headrest and the back of the chair between back of the chair and headrest, its characterized in that: the headrest height adjusting mechanism includes:
the positioning grooves are arranged on the chair back and are arranged along the length direction of the chair back;
the handle is in sliding connection with the headrest, and at least part of the handle is exposed out of the chair back and the headrest;
the transmission plate is connected with the handle and can move along with the movement of the handle;
the positioning key is movably connected to the headrest, can be contacted with and controlled by the transmission plate, can move relative to the headrest under the control of the lifting handle and the transmission plate so as to have a locking state and an unlocking state, and is clamped into any one positioning groove under the action of the transmission plate in the locking state so as to lock the relative positions of the headrest and the chair back; and when the lifting handle is lifted, the positioning key is in an unlocking state, and the positioning key moves out of the positioning groove under the action of the transmission plate, so that the headrest can move up and down relative to the chair back.
Further, the positioning key is connected with a rotating shaft, and two ends of the rotating shaft are rotatably connected to the headrest; the positioning key is provided with a positioning part, the headrest is provided with a through hole allowing the positioning part to pass through, and the positioning part can pass through the through hole and then be clamped into any positioning groove after rotating around the rotating shaft. In the scheme, the locking and unlocking states are controlled through rotation of the positioning key, so that the structure is simple; in this scheme except the through hole, the headrest shelters from completely the locating key for the setting of locating key is more firm, and headrest adjustment mechanism is more pleasing to the eye.
In order to realize the rotation of the positioning key, further, the positioning key is further provided with a transmission inclined plane, the transmission plate is provided with a driving protrusion matched with the transmission inclined plane, and in the lifted state of the lifting handle, the driving protrusion pushes the transmission inclined plane on the positioning key to enable the positioning key to rotate around the rotating shaft, and at the moment, the positioning part on the positioning key is moved out of the positioning groove.
Further, a spring reset device is arranged between the transmission plate and the headrest and is used for driving the transmission plate to reset downwards, so that a driving protrusion on the transmission plate is far away from a transmission inclined plane on the positioning key, and the driving protrusion is propped against the positioning part, so that the positioning part passes through the through hole and is clamped into any positioning groove. That is, when the handle is lifted, the spring in the spring resetting device is in a compressed state, and when the user removes the acting force on the handle, the elasticity of the spring drives the transmission plate to reset downwards.
Further, a clamping groove matched with the lifting handle is formed in the headrest in the vertical direction, and the lifting handle can move up and down along the clamping groove.
Further, the headrest adjusting mechanism further comprises a first connecting piece, a first guide groove is formed in the clamping groove, a second guide groove is formed in the handle, and the first connecting piece sequentially penetrates through the first guide groove and the second guide groove to be connected to the chair back. When the handle and the headrest are pulled upward or downward at the same time, the first link moves in the first guide groove and the second guide groove.
Further, the headrest adjusting mechanism further comprises a second connecting piece, a third guide groove is formed in the chair back, and the second connecting piece penetrates through the third guide groove to be connected with the headrest. When the handle and the headrest are pulled upwards or downwards at the same time, the second connecting piece moves in the third guide groove; in the utility model, the headrest moves along a fixed direction and distance relative to the chair back by the cooperation of the first connecting piece, the second connecting piece and the first guiding groove, the second guiding groove and the third guiding groove.
In order to accurately regulate and control the rotation of the positioning key, further, a fourth guide groove is formed in the headrest, and a limiting rod which moves along the fourth guide groove is arranged on the handle. The distance and the direction of the movement of the lifting handle relative to the headrest are determined by the cooperation of the fourth guide groove and the limiting rod, and the up-and-down movement of the lifting handle relative to the headrest controls the rotation of the positioning key; when the limiting rod of the handle is positioned at the uppermost end of the fourth guide groove, the positioning part on the positioning key is moved out of the positioning groove; when the limiting rod of the handle is positioned at the lowest end of the fourth guide groove, the driving protrusion of the transmission plate props against the positioning part on the positioning key, so that the positioning part is clamped into the positioning groove.
Further, the height adjusting mechanism further includes a fixing plate that connects the transmission plate and the positioning key to the headrest. The fixing plate can also shield the transmission plate and the positioning key, so that the headrest adjusting mechanism is more attractive.
Further, the handle is provided with scales which are convenient for positioning the height of the headrest.
Compared with the prior art, the utility model has the advantages that: the handle control positioning key is lifted upwards relative to the headrest to move out of the positioning groove, and then the handle and the headrest are pulled upwards or downwards at the same time, so that the headrest moves up and down relative to the seat back.
Drawings
FIG. 1 is a schematic view of a child safety seat in accordance with the teachings of the present utility model;
FIG. 2 is a schematic view of a headrest and a headrest height adjustment mechanism in accordance with embodiments of the present utility model;
FIG. 3 is a schematic view of a headrest and a headrest height adjustment mechanism in accordance with embodiments of the present utility model;
FIG. 4 is a rear exploded view of a child safety seat in the practice of the present utility model;
FIG. 5 is a front exploded view of a child safety seat in the practice of the present utility model;
FIG. 6 is a schematic diagram of a positioning key in the embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1, the present embodiment discloses a headrest adjusting mechanism of a child safety seat, including a seatback 1, a headrest 2 movably connected with the seatback 1, and a headrest height adjusting mechanism provided between the seatback 1 and the headrest 2 for adjusting a relative position between the headrest 2 and the seatback 1. In the prior art, the types of the headrest height adjusting mechanisms are various, most of the headrest height adjusting mechanisms are completed by two hands when the headrest height is adjusted, and the headrest height adjusting mechanisms in the embodiment are simple in structure and can adjust the height of the headrest by only one hand.
The headrest height adjusting mechanism of the present embodiment includes a positioning groove 11, a handle 31, a drive plate 33 and a positioning key 32, and has the following specific structure:
referring to fig. 1 and 5, a plurality of positioning grooves 11 are provided on the seatback 1 and are uniformly arranged along the lengthwise direction of the seatback 1;
referring to fig. 3 and 4, the handle 31 is vertically arranged on the back of the headrest 2, and the handle 31 is provided with a scale 313 for facilitating the positioning of the height of the headrest; the handle 31 is partially exposed outside the chair back 1 and the headrest 2, so that the operation of a user is facilitated; in addition, the headrest 2 is also provided with a clamping groove 21 which is matched with the lifting handle 31, and the lifting handle 31 can move up and down along the clamping groove 21;
referring to fig. 3 and 4, a driving plate 33 is connected to the lower end of the handle 31, and the driving plate 33 can move along with the movement of the handle 31; the transmission plate 33 is also provided with a driving protrusion 331;
referring to fig. 3 and 6, the positioning key 32 is provided with a rotation shaft 321, a transmission inclined plane 324 and a positioning part 323, two ends of the rotation shaft 321 are rotatably connected to the headrest 2, the transmission inclined plane 324 cooperates with the driving protrusion 331 to realize that the positioning key 32 rotates around the rotation shaft 321, and further, the positioning part 323 on the positioning key 32 can be clamped into the positioning groove 11 or removed from the positioning groove 11 after rotating around the rotation shaft 321.
In this embodiment, the handle 31 drives the driving plate 33 to move up and down to control the rotation of the positioning key 32, so that the positioning key 32 has a locked state and an unlocked state. Specifically, in the locked state, the driving protrusion 331 of the driving plate 33 abuts against the positioning portion 323 of the positioning key 32, so that the positioning portion 323 is engaged into any one of the positioning grooves 11, thereby locking the relative positions of the headrest 2 and the seatback 1; in a state where the handle 31 is lifted, the positioning key 32 is in an unlocked state, so that the positioning portion 323 is moved out of the positioning groove 11, so that the headrest 2 can move up and down relative to the seat back 1; during the lifting process of the lifting handle 31, the lifting handle 31 drives the driving plate 33 to move upwards, and the driving protrusion 331 on the driving plate 33 pushes the driving inclined surface 324 on the positioning key 32, so that the positioning key 32 rotates around the rotation shaft 321, and the positioning portion 323 is moved out of the positioning groove 11.
Referring to fig. 3, in order to increase the firmness of the installation of the positioning key 32 and the aesthetic degree of the headrest height adjusting mechanism, on one hand, the headrest height adjusting mechanism further comprises a fixing plate 34, and the fixing plate 34 connects the transmission plate 33 and the positioning key 32 to the headrest 2, so that the fixing plate 34 blocks the internal structure of the positioning key 32, and the headrest is more attractive; and the fixing plate 34 abuts against the rotation shaft 321 of the positioning key 32, so that the positioning key 32 is not easily translocated. On the other hand, the headrest 2 is provided with a through hole 22 allowing the positioning part 323 to pass through, and the positioning part 323 can pass through the through hole 22 and be clamped into any positioning groove 11 after rotating around the rotating shaft 321, except the through hole 22, the headrest 2 completely shields the positioning key 32, so that the positioning key 32 is firmer, and the headrest height adjusting mechanism is more attractive.
In this embodiment, the positioning slots 11 on the seat back have two rows, and correspondingly, the positioning keys 32 and the through holes 22 have two groups respectively.
In order to facilitate control of the direction and distance of movement of the headrest 2 relative to the seat back 1, the headrest adjustment mechanism further comprises a first link 4 and a second link 5; the clamping groove 21 is internally provided with a first guide groove 211, the handle 31 is provided with a second guide groove 311, and the chair back 1 is provided with a third guide groove 12; the first connecting piece 4 sequentially passes through the first guide groove 211 and the second guide groove 311 to be connected to the chair back 1, and the second connecting piece 5 passes through the third guide groove 12 to be connected with the headrest; when the headrest 2 moves up and down with respect to the seatback 1, the first link 4 moves in the first guide groove 211 and the second guide groove 311, and the second link 5 moves in the third guide groove 12. In addition, in order to control the moving direction and distance of the handle 31 relative to the headrest 2, the headrest 2 is provided with a fourth guide groove 212, and the handle 31 is provided with a stop lever 312 that moves along the fourth guide groove 212.
Further, a spring return device is provided between the transmission plate 33 and the headrest 2 of the present embodiment, specifically, the spring return device includes a spring 6, and the upper end of the spring 6 abuts against the headrest 2 and the lower end abuts against the transmission plate 33. The spring 6 is compressed when the handle 31 and the drive plate 33 are sequentially pulled upward against the headrest 2. When the user removes the force on the handle 31, the spring 6 drives the driving plate 33 to return downward, so that the driving protrusion 331 on the driving plate 33 is far away from the driving inclined surface 324 on the positioning key 32, and the driving protrusion 331 abuts against the positioning portion 323, so that the positioning portion 323 is penetrated out from the through hole 22 and is clamped into any one of the positioning grooves 11. The positioning portion 323 in the embodiment has a return inclined plane 3231, when the driving protrusion 331 moves downward along the return inclined plane 3231, the positioning portion 323 gradually penetrates the through hole 22, and finally the driving protrusion 331 abuts against the positioning portion 323 to fix the positioning portion 323 in the positioning slot 11.
The headrest adjusting mechanism of the present embodiment is used as follows: firstly, lifting the lifting handle 31 upwards, the lifting handle 31 drives the transmission plate 33 upwards, and then the driving protrusion 331 of the transmission plate 33 pushes the transmission inclined surface 324 on the positioning key 32, so that the positioning key 32 rotates around the rotating shaft 321, and the positioning part 323 is moved out of the positioning groove 11; then simultaneously pulling the handle 31 and the headrest 2 upwards or downwards, and adjusting the headrest to a proper position by referring to the scale 313 on the handle 31; the spring 6 is compressed in the above process. Finally, the handle 31 is released, the compressed spring 6 drives the transmission plate 33 to reset downwards, so that the driving protrusion 331 on the transmission plate 33 is far away from the transmission inclined surface 324 on the positioning key 32, and the driving protrusion 331 abuts against the positioning portion 323, so that the positioning portion 323 passes out of the through hole 22 and is clamped into the positioning groove 11.
Claims (10)
1. The utility model provides a child safety seat's headrest adjustment mechanism, includes back of the chair (1), with back of the chair (1) swing joint's headrest (2) to and set up the headrest high adjustment mechanism who is used for adjusting the relative position between headrest (2) and back of the chair (1) between back of the chair (1) and headrest (2), its characterized in that: the headrest height adjusting mechanism includes:
a plurality of positioning grooves (11) which are arranged on the chair back (1) and are arranged along the length direction of the chair back (1);
a handle (31) which is in sliding connection with the headrest (2), wherein the handle (31) is at least partially exposed outside the chair back (1) and the headrest (2);
the transmission plate (33) is connected with the handle (31), and the transmission plate (33) can move along with the movement of the handle (31);
the positioning key (32) is movably connected to the headrest (2), the positioning key (32) can be in contact with the transmission plate (33) and is controlled by the transmission plate (33), the positioning key (32) can move relative to the headrest (2) under the control of the handle (31) and the transmission plate (33) so as to have a locking state and an unlocking state, and in the locking state, the positioning key (32) is clamped into any one positioning groove (11) under the action of the transmission plate (33), so that the relative position of the headrest (2) and the chair back (1) is locked; when the lifting handle (31) is lifted, the positioning key (32) is in an unlocking state, and the positioning key (32) moves out of the positioning groove (11) under the action of the transmission plate (33), so that the headrest (2) can move up and down relative to the chair back (1).
2. The headrest adjusting mechanism of a child safety seat according to claim 1, wherein: the positioning key (32) is connected with a rotating shaft (321), and two ends of the rotating shaft (321) are rotatably connected to the headrest (2); the positioning key (32) is provided with a positioning part (323), the headrest (2) is provided with a through hole (22) allowing the positioning part (323) to pass through, and the positioning part (323) can pass through the through hole (22) and then be clamped into any positioning groove (11) after rotating around the rotating shaft (321).
3. The headrest adjusting mechanism of a child safety seat according to claim 2, wherein: the positioning key (32) is further provided with a transmission inclined plane (324), the transmission plate (33) is provided with a driving protrusion (331) which can be matched with the transmission inclined plane (324), the driving protrusion (331) pushes the transmission inclined plane (324) on the positioning key (32) under the state that the lifting handle (31) is lifted, the positioning key (32) rotates around the rotating shaft (321), and at the moment, the positioning part (323) on the positioning key (32) moves out of the positioning groove (11).
4. The headrest adjusting mechanism for a child safety seat according to claim 3, wherein: a spring reset device is arranged between the transmission plate (33) and the headrest (2), and is used for driving the transmission plate (33) to reset downwards, so that a driving protrusion (331) on the transmission plate (33) is far away from a transmission inclined plane (324) on the positioning key (32), and the driving protrusion (331) is propped against the positioning part (323), so that the positioning part (323) penetrates out of the through hole (22) and is clamped into any positioning groove (11).
5. The headrest adjusting mechanism of a child safety seat according to claim 1, wherein: the headrest (2) is provided with a clamping groove (21) which is matched with the lifting handle (31) in the vertical direction, and the lifting handle (31) can move up and down along the clamping groove (21).
6. The headrest adjusting mechanism for a child safety seat according to claim 5, wherein: still include first connecting piece (4), offered first guide way (211) in draw-in groove (21), offered second guide way (311) on handle (31), first connecting piece (4) pass first guide way (211) and second guide way (311) in proper order and connect on back of the chair (1).
7. The headrest adjusting mechanism for a child safety seat according to claim 6, wherein: the seat back is characterized by further comprising a second connecting piece (5), a third guide groove (12) is formed in the seat back (1), and the second connecting piece (5) penetrates through the third guide groove (12) to be connected with the headrest.
8. The headrest adjusting mechanism of a child safety seat according to claim 1, wherein: a fourth guide groove (212) is formed in the headrest (2), and a limiting rod (312) which moves along the fourth guide groove (212) is arranged on the handle (31).
9. The headrest adjusting mechanism of a child safety seat according to claim 1, wherein: the height adjusting mechanism further comprises a fixing plate (34), and the fixing plate (34) connects the transmission plate (33) and the positioning key (32) to the headrest (2).
10. The headrest adjusting mechanism of a child safety seat according to claim 1, wherein: the handle (31) is provided with a scale (313) which is convenient for positioning the height of the headrest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321011611.7U CN219769695U (en) | 2023-04-26 | 2023-04-26 | Headrest adjusting mechanism of child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321011611.7U CN219769695U (en) | 2023-04-26 | 2023-04-26 | Headrest adjusting mechanism of child safety seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219769695U true CN219769695U (en) | 2023-09-29 |
Family
ID=88109469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321011611.7U Active CN219769695U (en) | 2023-04-26 | 2023-04-26 | Headrest adjusting mechanism of child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219769695U (en) |
-
2023
- 2023-04-26 CN CN202321011611.7U patent/CN219769695U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A headrest adjustment mechanism for child safety seats Effective date of registration: 20231102 Granted publication date: 20230929 Pledgee: Cixi branch of industrial and Commercial Bank of China Ltd. Pledgor: Ningbo Yuanyuan Auto Accessories Co.,Ltd. Registration number: Y2023980063466 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |