CN221023366U - Chair back height adjusting structure and child safety seat - Google Patents
Chair back height adjusting structure and child safety seat Download PDFInfo
- Publication number
- CN221023366U CN221023366U CN202322812323.8U CN202322812323U CN221023366U CN 221023366 U CN221023366 U CN 221023366U CN 202322812323 U CN202322812323 U CN 202322812323U CN 221023366 U CN221023366 U CN 221023366U
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- chair back
- height
- gas spring
- self
- locking switch
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- 238000004904 shortening Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model provides a chair back height adjusting structure and a child safety seat, which comprise a chair back body, a chair back lengthening plate and a gas spring, wherein the chair back body and the chair back lengthening plate are movably connected with each other, one end of the gas spring is connected with the chair back body, and the gas spring comprises a self-locking switch; when the self-locking switch is subjected to external force pressure, the gas spring stretches to push the chair back body to move upwards relative to the chair back lengthening plate so as to realize the elevation of the chair back; when the self-locking switch receives external force pressure and the chair back body receives external force pressure, the gas spring shortens to enable the chair back body to move downwards relative to the chair back lengthening plate, so that the reduction of the chair back height is achieved. The self-locking switch can be loosened at any height to fix the height position of the chair back, stepless adjustment of the height of the chair back is realized, the chair back can be stopped at any position in the height travel range, the chair back is suitable for fine height adjustment, the best sitting posture support of children in the use process is ensured, and the riding safety is ensured.
Description
Technical Field
The utility model relates to the technical field of automobile safety products, in particular to a chair back height adjusting structure and a child safety seat.
Background
In the conventional child safety seat, the gear of the seatback height can be set only at a predetermined specific position, and electrodeless height adjustment cannot be achieved. This means that the user can only choose between a few fixed height steps and cannot make fine height adjustments according to the actual needs, which may lead to a failure of optimal sitting support and safety protection for some children during use.
Disclosure of utility model
In order to solve at least one aspect of the above problems, the present utility model firstly provides a chair back height adjusting structure, which comprises a chair back body, a chair back lengthening plate and a gas spring, wherein the chair back body and the chair back lengthening plate are movably connected with each other, one end of the gas spring is connected with the chair back body, and the gas spring comprises a self-locking switch for controlling the extension or shortening of the gas spring; when the self-locking switch receives external force pressure, the gas spring stretches to push the chair back body to move upwards relative to the chair back lengthening plate so as to realize the elevation of the chair back; when the self-locking switch receives external force pressure and the chair back body receives external force pressure, the gas spring is shortened to enable the chair back body to move downwards relative to the chair back lengthening plate, so that the height of the chair back is reduced; when the external force pressure of the self-locking switch is removed, the gas spring stops moving, so that the adjustment of the height of the chair back is completed.
Optionally, the gas spring further comprises a piston cylinder and a piston rod which are connected with each other in a sliding manner, and the piston rod is connected with the chair back body.
Optionally, the chair back body further comprises a headrest integrally provided with the chair back body.
Optionally, the chair back body includes interconnect's back protecgulum and back of the chair back hou gai, back of the chair extension board includes interconnect's extension board protecgulum and extension board back lid, gas spring locates the extension board protecgulum with between the extension board back lid, back of the chair extension board is located back of the chair protecgulum with between the back of the chair back lid.
Optionally, the chair further comprises a height adjusting button for pressing the self-locking switch, and the height adjusting button is connected with the chair back body.
Optionally, the chair back body is provided with a mounting cavity for mounting the height adjusting button.
Optionally, a return spring is arranged between the height adjusting button and the mounting cavity.
Optionally, the height adjusting button is provided with a limiting piece, the chair back body is provided with a limiting table suitable for being matched with the limiting piece, and when the limiting piece is in butt joint with the limiting table, the height adjusting button is separated from the self-locking switch.
Optionally, the height adjusting button is disposed on the top of the chair back body.
Compared with the prior art, the chair back height adjusting structure is provided with the chair back body and the chair back lengthening plate which are movably connected with each other, the air spring is arranged between the chair back body and the chair back lengthening plate, the extension length of the air spring is adjusted by pressing the self-locking switch on the air spring, the height position of the chair back can be fixed by loosening the self-locking switch at any height, stepless adjustment of the height of the chair back is realized, the chair back can be stopped at any position in the height travel range, the chair back is suitable for fine height adjustment, the best sitting posture support of children in the use process is ensured, and the riding safety is ensured.
In addition, the utility model provides a child safety seat comprising the seat back height adjustment structure as described above.
Compared with the prior art, the child safety seat has the same advantages as the chair back height adjusting structure in the prior art, and the child safety seat is not described in detail herein.
Drawings
FIG. 1 is an exploded view of a chair back height adjustment structure according to an embodiment of the present utility model;
FIG. 2 is a block diagram of a chair back height adjustment mechanism according to an embodiment of the present utility model when the chair back height is lowest;
FIG. 3 is a partial cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a partial cross-sectional view taken along the direction B-B in FIG. 2;
fig. 5 is a block diagram of the chair back height adjusting structure according to the embodiment of the present utility model when the chair back height is raised.
Reference numerals illustrate:
1. A chair back body; 11. a back front cover; 12. a chair back cover; 13. a headrest; 14. a mounting cavity; 15. a limiting table; 2. a chair back lengthening plate; 21. a front cover of the lengthening plate; 22. a rear cover of the extension plate; 3. a gas spring; 31. a self-locking switch; 32. a piston cylinder; 33. a piston rod; 4. a height adjustment button; 41. a limiting piece; 5. and a return spring.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present utility model, it is to be understood that the terms "upper", "lower", etc. indicate an orientation or positional relationship based on the orientation or positional relationship when the product is normally used.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The drawings of the embodiments of the present utility model are provided with a coordinate axis Y, wherein the forward direction of the Y axis represents the front and the reverse direction of the Y axis represents the rear.
The embodiment of the utility model provides a chair back height adjusting structure, which is shown in combination with figures 1, 2 and 5 and comprises a chair back body 1, a chair back lengthening plate 2 and a gas spring 3, wherein the chair back body 1 and the chair back lengthening plate 2 are movably connected with each other, one end of the gas spring 3 is connected with the chair back body 1, and the gas spring 3 comprises a self-locking switch 31 for controlling the extension or shortening of the gas spring 3; when the self-locking switch 31 receives external force pressure, the gas spring 3 stretches to push the chair back body 1 to move upwards relative to the chair back lengthening plate 2 so as to realize the elevation of the chair back; when the self-locking switch 31 receives external pressure and the chair back body 1 receives external pressure, the gas spring 3 shortens to enable the chair back body 1 to move downwards relative to the chair back lengthening plate 2, so that the height of the chair back is reduced; when the external force pressure of the self-locking switch 31 is removed, the gas spring 3 stops moving to complete the adjustment of the chair back height.
Wherein the direction of the external pressure is downward; the length direction of the air spring 3 is consistent with the height direction of the chair back, namely, the air spring is consistent with the up-down direction; one end of the air spring 3 is connected with the chair back body 1, the other end of the air spring 3 can be connected with the chair back lengthening plate 2 or the base of the child safety seat, when only the self-locking switch 31 is under external pressure, the air spring 3 stretches to push the chair back body 1 to move upwards relative to the chair back lengthening plate 2, and the adjustment of the chair back height is realized; when the height is adjusted to a proper height, the self-locking switch 31 is released, and the length of the air spring 3 stops changing at the moment, so that the positions between the chair back body 1 and the chair back lengthening plate 2 are mutually fixed, and the adjustment of the chair back height is completed. When the self-locking switch 31 receives external force pressure and the chair back body 1 receives external force pressure, the air spring 3 is shortened, and the chair back body 1 moves downwards relative to the chair back lengthening plate 2 under the action of the external force pressure and the gravity of the chair back body; one end of the air spring 3 can be fixedly connected with the chair back body 1 through a connecting piece, and can also be in abutting connection with the chair back body 1.
The chair back height adjusting structure in the embodiment is provided with the chair back body 1 and the chair back lengthening plate 2 which are movably connected with each other, the air spring 3 is arranged between the chair back body and the chair back lengthening plate, the extension length of the air spring 3 is adjusted by pressing the self-locking switch 31 on the air spring 3, the height position of the chair back can be fixed by loosening the self-locking switch 31 at any height, stepless adjustment of the chair back height is realized, the chair back can be stopped at any position in the height travel range, the chair back is suitable for fine height adjustment, children can be ensured to be supported in an optimal sitting posture in the use process, and riding safety is ensured.
Optionally, as shown in fig. 1, 2, 3 and 4, the gas spring 3 further includes a piston cylinder 32 and a piston rod 33 slidably connected to each other, and the piston rod 33 is connected to the seat back body 1.
The piston cylinder 32 and the chair back lengthening plate 2 are fixed in mutual positions, the piston rod 33 can move up and down relative to the piston cylinder 32, and when the self-locking switch 31 is pressed, the chair back body 1 moves up and down relative to the chair back lengthening plate 2, so that the chair back height is adjusted, and the chair back height adjusting mechanism is simple and reliable in structure.
If the chair back is at the lowest height in the initial state, when the self-locking switch 31 is pressed down, the piston rod 33 stretches out to drive the chair back body 1 to rise, and when the self-locking switch 31 is released, the chair back body 1 stops rising; when the chair back body 1 descends, the chair back body 1 is only pressed downwards when the self-locking switch 31 is pressed down; the stepless adjustment of the height of the chair back in the embodiment compensates the defect of the limitation of the height of the gear of the traditional chair.
Optionally, as shown in fig. 1, 2, 3, 4 and 5, the chair further comprises a height adjusting button 4 for pressing the self-locking switch 31, wherein the height adjusting button 4 is connected with the chair back body 1; the height adjusting button 4 protrudes out of the chair back body 1 to be arranged, the surface of the height adjusting button 4 for the user to press by hand is larger, and the self-locking switch 31 is pressed by pressing the height adjusting button 4, so that the chair is more labor-saving and convenient.
Optionally, as shown in fig. 1, 3 and 4, the chair back body 1 is provided with a mounting cavity 14 for mounting the height adjusting button 4, so that the overall structure is more compact. The height adjusting button 4 is arranged at the top of the chair back body 1, so that a user can press the self-locking switch 31 downwards and can also press the chair back body 1 downwards, and the reduction of the chair back height is conveniently realized.
Optionally, as shown in fig. 1, 3 and 4, a return spring 5 is disposed between the height adjusting button 4 and the mounting cavity 14, the return spring 5 is a compression spring, the upper and lower ends of the return spring 5 are respectively abutted against the bottoms of the height adjusting button 4 and the mounting cavity 14, and after the external force pressure applied to the height adjusting button 4 is removed, the height adjusting button 4 can move upwards to return under the action of the spring force of the return spring 5, so that the height adjusting button 4 is separated from the self-locking switch 31, thereby completing the locking of the chair back height.
Optionally, as shown in fig. 3, the height adjusting button 4 is provided with a limiting piece 41, the chair back body 1 is provided with a limiting table 15 adapted to be matched with the limiting piece 41, and when the limiting piece 41 is in abutting matching with the limiting table 15, the height adjusting button 4 and the self-locking switch 31 are separated from each other; the limiting member 41 is a limiting screw, and the limiting table 15 is disposed on a side wall of the mounting cavity 14.
If the chair back is at the lowest height in the initial state, when the height adjusting button 4 is pressed, the self-locking switch 31 of the air spring 3 is touched, the piston rod 33 stretches out, and the chair back body 1 is driven to rise; when the height adjusting button 4 is loosened, the height adjusting button 4 rises under the action of the reset spring 5, and when the limit screw touches the limit table 15 of the chair back body 1, the height adjusting button 4 stops rising, and is separated from the self-locking switch 31 at the moment, and the chair back stops rising; when the chair back descends, the chair back body 1 only needs to be pressed downwards when the height adjusting button 4 is pressed.
Optionally, as shown in fig. 2 and 5, the seat back body 1 further includes a headrest 13 integrally provided with the seat back body 1, and the installation cavity 14 is disposed at the top of the headrest 13, so that the height stepless adjustment is realized along with the headrest 13 during the height adjustment of the seat back body 1.
Alternatively, as shown in fig. 1, 2, 3 and 4, the seat back body 1 includes a seat back front cover 11 and a seat back rear cover 12 that are connected to each other, the seat back extension plate 2 includes an extension plate front cover 21 and an extension plate rear cover 22 that are connected to each other, the gas spring 3 is disposed between the extension plate front cover 21 and the extension plate rear cover 22, and the seat back extension plate 2 is disposed between the seat back front cover 11 and the seat back rear cover 12; the mounting cavity 14 is arranged on the chair back front cover 11, the chair back body 1 is arranged into a structure of combining the chair back front cover 11 and the chair back rear cover 12, and the chair back lengthening plate 2 is also arranged into a structure of combining the lengthening plate front cover 21 and the lengthening plate rear cover 22, so that the assembly of the whole structure is convenient.
Another embodiment of the present utility model provides a child safety seat including the seatback height adjusting structure as described above.
The child safety seat in this embodiment is provided with the seat back body 1 and the seat back lengthening plate 2 which are movably connected with each other, and the air spring 3 is arranged between the seat back body and the seat back lengthening plate, the extension length of the air spring 3 is adjusted by pressing the self-locking switch 31 on the air spring 3, and the height position of the seat back can be fixed by loosening the self-locking switch 31 at any height, so that the stepless adjustment of the height of the seat back is realized, the seat back can be stopped at any position in the height travel range, the child safety seat is suitable for fine height adjustment, the child can be supported in an optimal sitting posture in the use process, and the riding safety is ensured.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (10)
1. The chair back height adjusting structure is characterized by comprising a chair back body (1), a chair back lengthening plate (2) and a gas spring (3), wherein the chair back body (1) and the chair back lengthening plate (2) are movably connected with each other, one end of the gas spring (3) is connected with the chair back body (1), and the gas spring (3) comprises a self-locking switch (31) for controlling the extension or shortening of the gas spring (3); when the self-locking switch (31) receives external force pressure, the gas spring (3) stretches to push the chair back body (1) to move upwards relative to the chair back lengthening plate (2) so as to realize the elevation of the chair back; when the self-locking switch (31) receives external force pressure and the chair back body (1) receives external force pressure, the gas spring (3) shortens to enable the chair back body (1) to move downwards relative to the chair back lengthening plate (2) so as to reduce the chair back height; when the external pressure of the self-locking switch (31) is removed, the gas spring (3) stops moving so as to finish the adjustment of the height of the chair back.
2. The seatback height adjusting structure according to claim 1, characterized in that the gas spring (3) further includes a piston cylinder (32) and a piston rod (33) slidably connected to each other, the piston rod (33) being connected to the seatback body (1).
3. The seatback height adjusting structure according to claim 1, characterized in that the seatback body (1) further includes a headrest (13) provided integrally with the seatback body (1).
4. The chair back height adjustment structure according to claim 1, wherein the chair back body (1) includes a chair back front cover (11) and a chair back rear cover (12) that are connected to each other, the chair back extension plate (2) includes an extension plate front cover (21) and an extension plate rear cover (22) that are connected to each other, the gas spring (3) is provided between the extension plate front cover (21) and the extension plate rear cover (22), and the chair back extension plate (2) is provided between the chair back front cover (11) and the chair back rear cover (12).
5. The chair back height adjustment structure according to any one of claims 1-4, further comprising a height adjustment button (4) for pressing the self-locking switch (31), the height adjustment button (4) being connected with the chair back body (1).
6. The chair back height adjustment structure according to claim 5, characterized in that the chair back body (1) is provided with a mounting cavity (14) for mounting the height adjustment button (4).
7. The chair back height adjustment structure according to claim 6, characterized in that a return spring (5) is provided between the height adjustment button (4) and the mounting cavity (14).
8. The chair back height adjustment structure according to claim 7, wherein the height adjustment button (4) is provided with a limiting piece (41), the chair back body (1) is provided with a limiting table (15) suitable for being matched with the limiting piece (41), and when the limiting piece (41) is in butt joint with the limiting table (15), the height adjustment button (4) and the self-locking switch (31) are separated from each other.
9. The chair back height adjustment structure according to claim 5, characterized in that the height adjustment button (4) is provided at the top of the chair back body (1).
10. A child safety seat comprising a seatback height adjusting structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812323.8U CN221023366U (en) | 2023-10-19 | 2023-10-19 | Chair back height adjusting structure and child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812323.8U CN221023366U (en) | 2023-10-19 | 2023-10-19 | Chair back height adjusting structure and child safety seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221023366U true CN221023366U (en) | 2024-05-28 |
Family
ID=91169850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322812323.8U Active CN221023366U (en) | 2023-10-19 | 2023-10-19 | Chair back height adjusting structure and child safety seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221023366U (en) |
-
2023
- 2023-10-19 CN CN202322812323.8U patent/CN221023366U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |