CN108790972B - Headrest height adjusting mechanism of child seat and child seat using same - Google Patents
Headrest height adjusting mechanism of child seat and child seat using same Download PDFInfo
- Publication number
- CN108790972B CN108790972B CN201810653629.4A CN201810653629A CN108790972B CN 108790972 B CN108790972 B CN 108790972B CN 201810653629 A CN201810653629 A CN 201810653629A CN 108790972 B CN108790972 B CN 108790972B
- Authority
- CN
- China
- Prior art keywords
- headrest
- child seat
- bayonet lock
- operating rod
- gear bayonet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/818—Head-rests movable or adjustable vertically slidable characterised by their locking devices with stepwise positioning
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention relates to a child seat headrest height adjusting mechanism and a child seat using the same, which are arranged on a headrest (1) and are used for adjusting the vertical position of the headrest (1) on a seat back (7), wherein the headrest (1) and the seat back (7) move relatively in the vertical direction, and the child seat headrest height adjusting mechanism comprises a first operating rod (26) and a second operating rod (27), and the first operating rod (26) and the second operating rod (27) are hinged through a connecting pin (25); the upper end of the first operating rod (26) is provided with a first operating handle (21), and the lower end of the first operating rod is connected with a second headrest gear bayonet lock (32); the upper end of the second operating rod (27) is provided with a second operating handle (22), and the lower end of the second operating rod is connected with the first headrest gear bayonet lock (31). The scissor type headrest height adjusting mechanism provided by the invention enables a user to finish operation with little effort, and has the advantages of accurate locking and unlocking, thus reducing operation difficulty and being accurate in operation.
Description
Technical Field
The present invention relates to a child safety seat, and more particularly, to a child safety seat headrest height adjustment mechanism and a child safety seat using the same.
Background
Since the child is smaller in shape than an adult, the child cannot sit stably on the car seat conforming to the adult's shape. Therefore, when a child wants to ride an automobile, a child automobile seat conforming to the shape of the child is usually additionally arranged on the automobile seat, so that the child can safely and comfortably ride the automobile along with parents.
In order to adapt to the growth speed of the body of the child, the headrest and the chair back of the child chair can be adjusted to ensure that the child chair is suitable for the body of the child.
The existing child seat headrest adjusting mechanism has the technical defects of inconvenience in operation, laborious operation, inaccurate clamping and the like.
Disclosure of Invention
The invention designs a child seat headrest height adjusting mechanism and a child seat using the same, which solve the technical problems that: the existing child seat headrest adjusting mechanism has the technical defects of inconvenience in operation, laborious operation, inaccurate clamping and the like.
In order to solve the technical problems, the invention adopts the following scheme:
the headrest height adjusting mechanism of the child seat is arranged on a headrest and used for adjusting the headrest to be at the vertical position of a chair back, and the headrest and the chair back relatively move in the vertical direction, and comprises a first operating rod and a second operating rod, wherein the first operating rod and the second operating rod are hinged through a connecting pin; the upper end of the first operating rod is provided with a first operating handle, and the lower end of the first operating rod is connected with a second headrest gear bayonet lock; the upper end of the second operating rod is provided with a second operating handle, and the lower end of the second operating rod is connected with the first headrest gear bayonet lock; when the first operating handle and the second operating handle move in opposite directions, the first headrest gear bayonet lock is separated from a left clamping groove on the chair back, and the second headrest gear bayonet lock is separated from a right clamping groove on the chair back, so that unlocking between the headrest and the chair back is realized; when the first operating handle and the second operating handle move reversely, the first headrest gear bayonet lock is clamped into the left clamping groove on the chair back, and the second headrest gear bayonet lock is clamped into the right clamping groove on the chair back, so that locking between the headrest and the chair back is realized.
Further, a plurality of left clamping grooves are formed in the chair back, each left clamping groove corresponds to different vertical heights, and the left clamping grooves form a left clamping groove group; the chair back is provided with a plurality of right clamping grooves, each right clamping groove corresponds to different vertical heights, and the right clamping grooves form a right clamping groove group; the left clamping grooves and the right clamping grooves with the same height are in one-to-one correspondence.
Further, the left clamping groove group and the right clamping groove group are arranged in parallel.
Further, the device further comprises a reset spring, wherein the reset spring is clamped between the first headrest gear bayonet and the second headrest gear bayonet to ensure that the bayonet cannot be separated after being clamped into the clamping groove.
Further, a left mounting hole or a left fixing column of the reset spring is arranged on the first headrest gear clamping pin, a right mounting hole or a right fixing column of the reset spring is arranged on the second headrest gear clamping pin, and the reset spring is clamped between the left mounting hole and the right mounting hole of the reset spring or between the left fixing column and the right fixing column of the reset spring.
Further, the first headrest shift bayonet is also provided with a first insertion hole, and the second headrest shift bayonet is also provided with a second insertion hole; the first opening and closing part of the first operating rod end part is fixed in the second inserting hole, and the second opening and closing part of the second operating rod end part is fixed in the first inserting hole.
Further, a headrest gear bayonet lock transverse movement open long groove is formed in the headrest, the headrest gear bayonet lock transverse movement open long groove is used for placing the first headrest gear bayonet lock and the second headrest gear bayonet lock, the strokes of the first headrest gear bayonet lock and the second headrest gear bayonet lock are guaranteed to be carried out according to the setting, and/or a stretching part stroke hole is formed in two sides above the headrest gear bayonet lock transverse movement open long groove respectively.
Further, the child seat headrest height adjustment mechanism is scissor-shaped.
A child seat using the child seat headrest height adjustment mechanism described above.
Further, a positioning press plate for positioning the child seat headrest height adjustment mechanism on the headrest is also included.
Further, a guide means is included to ensure that the headrest can only move in the direction perpendicular to the seatback.
This children's seat headrest height-adjusting mechanism and use its children's seat has following beneficial effect:
the scissor type headrest height adjusting mechanism provided by the invention enables a user to finish operation with little effort, and has the advantages of accurate locking and unlocking, thus reducing operation difficulty and being accurate in operation.
Drawings
Fig. 1: an exploded view of the child seat headrest height adjustment mechanism of the present invention;
fig. 2: the structure schematic diagram of the headrest gear bayonet lock in the invention;
fig. 3: the structure schematic diagram of the headrest height adjusting mechanism of the child seat is provided;
fig. 4: the headrest structure of the invention is schematically shown;
fig. 5: the positioning pressing plate structure of the invention is schematically shown;
fig. 6: the appearance schematic diagram I of the child seat is shown in the specification;
fig. 7: FIG. 3 is a schematic operation of a child seat headrest height adjustment mechanism;
fig. 8: the appearance schematic diagram II when the headrest of the child seat moves downwards;
fig. 9: FIG. 5 is a schematic view of the child seat headrest height adjustment mechanism;
fig. 10: the headrest of the child seat moves downwards to fix an appearance schematic diagram II;
fig. 11: FIG. 7 is a schematic view of the child seat headrest height adjustment mechanism;
reference numerals illustrate:
1-a headrest; 11-Zhang Gebu travel holes; 12-a headrest gear bayonet lock transversely moves to open an elongated slot; 13-a pin shaft hole; 2-a child seat headrest height adjustment mechanism; 21-a first operating handle; 22-a second operating handle; 23-a second opening/closing part; 24-a first opening and closing part; 25-connecting pins; 26-a first lever; 27-a second lever; 31-first headrest shift bayonet; 311-a left mounting hole of the return spring; 312-first insertion holes; 32-a second headrest shift bayonet; 321-a right mounting hole of the return spring; 322-a second insertion hole; 41-left clamping groove group; 42-right clamping groove group; 5-a return spring; 7, a chair back; 8-positioning pressing plates; 81-fixing screws.
Description of the embodiments
The invention is further described with reference to fig. 1 to 11:
as shown in fig. 1 and 3, a child seat headrest height adjustment mechanism which is mounted on a headrest 1 and is used for adjusting the vertical position of the headrest 1 on a seatback 7, the headrest 1 and the seatback 7 being relatively moved in the vertical direction, includes a first operating lever 26 and a second operating lever 27, the first operating lever 26 and the second operating lever 27 being hinged by a connecting pin 25; the upper end of the first operating lever 26 is provided with a first operating handle 21, and the lower end of the first operating lever is connected with a second headrest gear bayonet 32; the upper end of the second operating rod 27 is provided with a second operating handle 22, and the lower end of the second operating rod is connected with a first headrest gear bayonet 31; when the first operating handle 21 and the second operating handle 22 move in opposite directions, the first headrest shift bayonet lock 31 is separated from a left bayonet groove on the chair back 7, and the second headrest shift bayonet lock 32 is separated from a right bayonet groove on the chair back 7, so that unlocking between the headrest 1 and the chair back 7 is realized; when the first operating handle 21 and the second operating handle 22 move reversely, the first headrest shift position clamping pin 31 is clamped into the left clamping groove on the backrest 7, and the second headrest shift position clamping pin 32 is clamped into the right clamping groove on the backrest 7, so that the headrest 1 and the backrest 7 are locked.
The chair back 7 is provided with a plurality of left clamping grooves, each left clamping groove corresponds to a different vertical height, and the left clamping grooves form a left clamping groove group 41; the chair back 7 is provided with a plurality of right clamping grooves, each right clamping groove corresponds to different vertical heights, and the right clamping grooves form a right clamping groove group 42; the left clamping grooves and the right clamping grooves with the same height are in one-to-one correspondence. The left groove group 41 is arranged in parallel with the right groove group 42.
The return spring 5 is clamped between the first headrest shift position clamping pin 31 and the second headrest shift position clamping pin 32 to ensure that the clamping pins cannot be separated after being clamped into the clamping grooves.
As shown in fig. 2, the first headrest shift bayonet 31 is provided with a left mounting hole 311 for a return spring or a left fixing post for a return spring (not shown), the second headrest shift bayonet 32 is provided with a right mounting hole 321 for a return spring or a right fixing post for a return spring (not shown), and the return spring 5 is clamped between the left mounting hole 311 for a return spring and the right mounting hole 321 for a return spring or between the left fixing post for a return spring and the right fixing post for a return spring. The first headrest shift bayonet 31 is further provided with a first insertion hole 312, and the second headrest shift bayonet 32 is further provided with a second insertion hole 322; the first opening and closing portion 24 at the end of the first lever 26 is fixed to the second insertion hole 322, and the second opening and closing portion 23 at the end of the second lever 27 is fixed to the first insertion hole 312.
As shown in fig. 4, the headrest 1 is provided with a headrest shift position bayonet lock lateral movement open long groove 12, which is used for placing the first headrest shift position bayonet lock 31 and the second headrest shift position bayonet lock 32 to ensure that the strokes of the two are carried out according to the setting, and/or two sides above the headrest shift position bayonet lock lateral movement open long groove 12 are respectively provided with a opening and closing part stroke hole 11.
As shown in fig. 5, the positioning presser 8 is used to position the child seat headrest height adjustment mechanism 1 on the headrest 1. The two ends of the positioning pressing plate 8 are provided with mounting holes, and the middle is provided with a long groove. The first and second operating levers 26 and 27 pass through the long grooves, and the positioning press plate 8 is located above the connecting pin 25.
A child seat using the child seat headrest height adjustment mechanism described above. The working principle is as follows:
as shown in fig. 6 and 7, the first headrest shift position bayonet 31 and the second headrest shift position bayonet 32 have been located in the left and right bayonet grooves on both sides of the seatback 7, so that the headrest 1 and the seatback 7 are locked, and both cannot move.
As shown in fig. 8 and 9, the first and second headrest shift range detents 31 and 32 are moved laterally inward by pressing the first and second operating handles 21 and 22 and the return spring 5 is compressed until the first and second headrest shift range detents 31 and 32 are disengaged from the left and right detents on the seatback 7, and then the height of the headrest 1 can be adjusted.
As shown in fig. 10 and 11, moving the headrest 1 upward or downward to a desired headrest height releases the first and second operating handles 21 and 22 by hand, and the first and second headrest shift position detents 31 and 32 move laterally outward under the action of the return spring 5 to automatically align with the left and right detents slid to both sides on the seatback 7. The first operation handle 21 and the second operation handle 22 are also driven and reset together.
The installation method comprises the steps of putting a first headrest shift bayonet lock 31 and a second headrest shift bayonet lock 32 on a headrest 1, wherein a headrest shift bayonet lock transverse movement open long groove 12 is arranged on the headrest 1 and used for putting the first headrest shift bayonet lock 31 and the second headrest shift bayonet lock 32, and Zhang Gebu travel holes 11 are arranged on two sides above the headrest shift bayonet lock transverse movement open long groove 12. The first opening and closing part 24 at the tail end of the first operating rod 26 passes through the Zhang Gebu travel hole 11 at the right side of the headrest 1 to be connected with the second headrest shift position clamping pin 32, then the second opening and closing part 23 at the tail end of the second operating rod 27 passes through the Zhang Gebu travel hole 11 at the left side of the headrest 1 to be connected with the first headrest shift position clamping pin 31, the first operating rod and the second operating rod are combined into the scissor type child seat headrest height adjusting mechanism 2 through the connecting pin 25 to be fixed on the headrest 1, and then the reset spring 5 is placed into the spring holes of the first headrest shift position clamping pin 31 and the second headrest shift position clamping pin 32. The positioning pressing plate 8 is fixed on the headrest through the fixing screw 81, so that the deformation of the height adjusting mechanism 2 of the headrest of the scissor-type child seat can be effectively prevented, the headrest EPS is fixed on the headrest 1 through the tree nails, and the assembly of the headrest is completed. The two sides of the middle of the chair back 7 are provided with clamping groove groups, and the left clamping groove group and the right clamping groove group are in one-to-one correspondence when the first headrest gear clamping pin 31 and the second headrest gear clamping pin 32 are adjusted.
Because the height adjusting mechanism of the child seat headrest is in a scissor shape, the large strokes of the first headrest shift bayonet lock 31 and the second headrest shift bayonet lock 32 can be realized with small force only by adjusting the positions of the connecting pins, so that the operation of the height adjusting mechanism of the child seat headrest is easy and simple.
The invention has been described above by way of example with reference to the accompanying drawings, it is clear that the implementation of the invention is not limited to the above-described manner, but it is within the scope of the invention to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted or without any improvement.
Claims (10)
1. A child seat headrest height adjustment mechanism, which is mounted on a headrest (1) and is used for adjusting the vertical position of the headrest (1) on a seat back (7), wherein the headrest (1) and the seat back (7) move relatively in the vertical direction, and is characterized in that:
comprises a first operating rod (26) and a second operating rod (27), wherein the first operating rod (26) and the second operating rod (27) are hinged through a connecting pin (25);
the upper end of the first operating rod (26) is provided with a first operating handle (21), and the lower end of the first operating rod is connected with a second headrest gear bayonet lock (32); the upper end of the second operating rod (27) is provided with a second operating handle (22), and the lower end of the second operating rod is connected with a first headrest gear bayonet lock (31);
when the first operating handle (21) and the second operating handle (22) move in opposite directions, the first headrest gear bayonet lock (31) is separated from a left clamping groove on the chair back (7), and the second headrest gear bayonet lock (32) is separated from a right clamping groove on the chair back (7), so that unlocking between the headrest (1) and the chair back (7) is realized;
when the first operating handle (21) and the second operating handle (22) move reversely, the first headrest gear bayonet lock (31) is clamped into a left clamping groove on the chair back (7), and the second headrest gear bayonet lock (32) is clamped into a right clamping groove on the chair back (7), so that locking between the headrest (1) and the chair back (7) is realized.
2. The child seat headrest height adjustment mechanism according to claim 1, wherein: the chair back (7) is provided with a plurality of left clamping grooves, each left clamping groove corresponds to different vertical heights, and the left clamping grooves form a left clamping groove group (41); a plurality of right clamping grooves are formed in the chair back (7), each right clamping groove corresponds to different vertical heights, and the right clamping grooves form a right clamping groove group (42); the left clamping grooves and the right clamping grooves with the same height are in one-to-one correspondence.
3. The child seat headrest height adjustment mechanism according to claim 2, wherein: the left clamping groove group (41) and the right clamping groove group (42) are arranged in parallel.
4. A child seat headrest height adjustment mechanism according to any one of claims 1-3, wherein: the novel headrest clamping device further comprises a reset spring (5), wherein the reset spring (5) is clamped between the first headrest gear clamping pin (31) and the second headrest gear clamping pin (32) to ensure that the clamping pins cannot be separated after being clamped into the clamping grooves.
5. The child seat headrest height adjustment mechanism according to claim 4, wherein: the first headrest gear bayonet lock (31) is provided with a left reset spring mounting hole (311) or a left reset spring fixing column, the second headrest gear bayonet lock (32) is provided with a right reset spring mounting hole (321) or a right reset spring fixing column, and the reset spring (5) is clamped between the left reset spring mounting hole (311) and the right reset spring mounting hole (321) or between the left reset spring fixing column and the right reset spring fixing column.
6. The child seat headrest height adjustment mechanism according to claim 5, wherein: the first headrest gear bayonet (31) is also provided with a first inserting hole (312), and the second headrest gear bayonet (32) is also provided with a second inserting hole (322); a first opening and closing part (24) at the end part of the first operation rod (26) is fixed in a second insertion hole (322), and a second opening and closing part (23) at the end part of the second operation rod (27) is fixed in a first insertion hole (312).
7. The child seat headrest height adjustment mechanism according to claim 6, wherein: the child seat headrest height adjusting mechanism is in a scissor shape.
8. The child seat headrest height adjustment mechanism according to claim 7, wherein: the headrest (1) is provided with a headrest gear bayonet lock transverse movement open long groove (12) which is used for placing the first headrest gear bayonet lock (31) and the second headrest gear bayonet lock (32) into the headrest gear bayonet lock to ensure that the strokes of the first headrest gear bayonet lock and the second headrest gear bayonet lock are carried out according to the setting, and/or two sides above the headrest gear bayonet lock transverse movement open long groove (12) are respectively provided with a folding part stroke hole (11).
9. A child seat, characterized in that: use of a child seat headrest height adjustment mechanism (2) according to any one of claims 1-8.
10. The child seat according to claim 9, wherein: also comprises a positioning pressing plate (8) for positioning the child seat headrest height adjustment mechanism (2) on the headrest (1); and/or further comprising guiding means ensuring that the headrest (1) can only move in the vertical direction of the seatback (7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810653629.4A CN108790972B (en) | 2018-06-22 | 2018-06-22 | Headrest height adjusting mechanism of child seat and child seat using same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810653629.4A CN108790972B (en) | 2018-06-22 | 2018-06-22 | Headrest height adjusting mechanism of child seat and child seat using same |
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CN108790972A CN108790972A (en) | 2018-11-13 |
CN108790972B true CN108790972B (en) | 2023-07-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810653629.4A Active CN108790972B (en) | 2018-06-22 | 2018-06-22 | Headrest height adjusting mechanism of child seat and child seat using same |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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AU2023200829A1 (en) * | 2022-02-15 | 2023-08-31 | Britax Child Safety, Inc. | Convertible car seat with adjustable headrest |
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