CN215436102U - Car seat convenient to adjust back angle - Google Patents
Car seat convenient to adjust back angle Download PDFInfo
- Publication number
- CN215436102U CN215436102U CN202121008116.1U CN202121008116U CN215436102U CN 215436102 U CN215436102 U CN 215436102U CN 202121008116 U CN202121008116 U CN 202121008116U CN 215436102 U CN215436102 U CN 215436102U
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- ratchet
- backrest
- ratchet gear
- angle
- gear
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
The utility model provides an automobile seat convenient for adjusting the angle of a backrest, which comprises a main shaft, a base and the backrest, wherein a first convex block is arranged in the middle of the edge of the backrest, an installation groove is arranged in the middle of the edge of the base, a pair of second convex blocks are formed on two sides of the installation groove, the first convex block is arranged between the pair of second convex blocks, and the main shaft penetrates through the pair of second convex blocks, the installation groove and the first convex block; the two sides of the first convex block are respectively and fixedly provided with a first ratchet gear, and the second convex block is internally provided with a second ratchet gear and a locking device. The locking device enables the second ratchet gear to contact or separate from the first ratchet gear. When the second ratchet wheel is separated from the first ratchet wheel, the backrest can rotate around the main shaft. When the second ratchet gear is in contact with the first ratchet gear, the second ratchet gear is engaged with the first ratchet gear. The first lug, the first ratchet gear, the second ratchet gear and the second lug form a whole, and the backrest cannot rotate. By adjusting the angle between the backrest and the base in this way, the comfort for passengers is better.
Description
Technical Field
The utility model relates to an automobile seat convenient for adjusting the angle of a backrest, and belongs to the field of automobile parts.
Background
The car seat includes base and back, and the passenger sits on the base, and the back supports passenger's back, through the angle between adjustment back and the base to adapt to passenger's position of sitting, the passenger obtains the most comfortable experience of taking. At present, the angle adjusting function of the backrest of the domestic automobile seat is mainly realized through a nitrogen spring, the structure of the backrest is complex, and the backrest angle is inconvenient to adjust.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automobile seat convenient for adjusting the angle of a backrest, which has the advantages of simple structure and low manufacturing cost and solves the problems mentioned in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme: a car seat convenient for adjusting the angle of a backrest comprises a main shaft, a base and the backrest, wherein a first convex block is arranged in the middle of the edge of the backrest, an installation groove is arranged in the middle of the edge of the base, a pair of second convex blocks are formed on two sides of the installation groove, the first convex block is arranged between the pair of second convex blocks, the main shaft penetrates through the pair of second convex blocks, the installation groove and the first convex block, and the backrest rotates around the main shaft; two sides of the first lug are respectively and fixedly provided with a first ratchet gear, and a second ratchet gear and a locking device are arranged in the second lug; the first ratchet gear and the second ratchet gear are sleeved on the spindle, and the locking device enables the second ratchet gear to be in contact with or separated from the first ratchet gear.
Furthermore, the locking device comprises an accommodating groove arranged in the second bump, and a spring and a square sliding block which are arranged in the accommodating groove, wherein the cross section of the accommodating groove is the same as that of the square sliding block, the square sliding block is fixedly connected with the second ratchet gear, and the spring pushes the square sliding block and the second ratchet gear to extend out to be meshed with the first ratchet gear.
Furthermore, the locking device further comprises a communicating groove penetrating through the second bump, a pull wire penetrating through the communicating groove and a pull ring arranged outside the base, wherein one end of the pull wire is connected with the second ratchet gear, and the other end of the pull wire is connected with the pull ring.
Further, the size of the cross-sectional diameter of the second ratchet-toothed wheel is larger than the size of the side of the square slider.
Furthermore, a plurality of first ratchets are arranged on the end face of the first ratchet gear, and are distributed on the end face of the first ratchet gear in an annular array; the end face of the second ratchet gear is provided with a second ratchet, and the second ratchet is centrosymmetric with the first ratchet.
Furthermore, the first ratchet has a bottom surface, a top surface and a side surface, the bottom surface is fan-shaped, and an included angle between the side surface and the end surface of the first ratchet-toothed wheel is 90 degrees.
Compared with the prior art, the utility model has the beneficial effects that: the first lug is fixedly connected with the first ratchet gear, and the second lug is internally provided with a second ratchet gear and a locking device; the first ratchet gear and the second ratchet gear are sleeved on the spindle, and the locking device enables the second ratchet gear to be in contact with or separated from the first ratchet gear. When the second ratchet gear is in contact with the first ratchet gear, the second ratchet gear is engaged with the first ratchet gear. The locking device enables the first lug, the first ratchet gear, the second ratchet gear and the second lug to form a whole, so that the angle between the backrest and the base is adjusted in the mode, the sitting posture of a passenger is adapted, and the comfort degree of the passenger is better. When the second ratchet gear is separated from the first ratchet gear, the backrest can rotate around the main shaft until the backrest stops rotating to a proper position, the locking device enables the second ratchet gear to be in contact with the first ratchet gear, and the backrest cannot rotate.
Drawings
FIG. 1 is a schematic view of a vehicle seat according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of circle C in FIG. 1;
FIG. 3 is a left side view of the vehicle seat of FIG. 1;
FIG. 4 is a cross-sectional view taken along line AA of FIG. 3;
fig. 5 is a schematic view of the first ratchet gear shown in fig. 2.
In the figure: 1. a base; 2. a backrest; 3. a pull ring; 4. a pull wire; 5. a first ratchet gear; 6. a second ratchet gear; 7. a containing groove; 8. a spring; 9. a square slider; 10. a main shaft; 11. mounting grooves; 12. A communicating groove; 21. a bump; 51. a first ratchet; 52. an end face of the first ratchet-toothed wheel; 511. a top surface; 512. a side surface; 61. a second ratchet.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1 to 5, a vehicle seat convenient to adjust a backrest angle according to a preferred embodiment of the present invention includes a main shaft 10, a base 1 and a backrest 2, wherein a first protrusion 21 is disposed in the middle of the edge of the backrest 2, a mounting groove 11 is disposed in the middle of the edge of the base 1, a pair of second protrusions 21 are formed on two sides of the mounting groove 11, the first protrusion 21 is disposed between the pair of second protrusions 21, the main shaft 10 penetrates through the pair of second protrusions 21, the mounting groove 11 and the first protrusion 21, and the backrest 2 rotates around the main shaft 10; two sides of the first projection 21 are respectively and fixedly provided with a first ratchet gear 5, and a second ratchet gear 6 and a locking device are arranged in the second projection 21; the first ratchet gear 5 and the second ratchet gear 6 are sleeved on the main shaft 10, and the locking device enables the second ratchet gear 6 to contact or separate from the first ratchet gear 5. The first ratchet gear 5 and the second ratchet gear 6 are sleeved on the main shaft 10.
As the first lug 21 is fixedly connected with the first ratchet gear, the second lug 21 is provided with the second ratchet gear 6 and a locking device; the locking means causes the second ratchet-toothed wheel 6 to contact or disengage the first ratchet-toothed wheel 5. When the second ratchet gear 6 is in contact with the first ratchet gear 5, the second ratchet gear 6 is engaged with the first ratchet gear 5. The locking device makes the first cam 21, the first ratchet gear 5, the second ratchet gear 6 and the second cam 21 form a whole, and the backrest 2 can not rotate around the main shaft 10. When the locking device drives the second ratchet gear 6 to separate from the first ratchet gear 5, the backrest 2 can rotate around the main shaft 10 until the backrest 2 stops rotating to a proper position. Then, the locking device makes the second ratchet gear 6 contact with the first ratchet gear 5, and the backrest 2 cannot rotate. The steps are repeated, so that the angle between the backrest 2 and the base 1 is adjusted, the sitting posture of a passenger is adapted, and the comfort degree of the passenger is better.
Specifically, the locking device comprises a containing groove 7 arranged in the second projection 21, and a spring 8 and a square sliding block 9 which are arranged in the containing groove 7, wherein the cross section of the containing groove 7 is the same as the cross section of the square sliding block, the square sliding block 9 is fixedly connected with the second ratchet gear 6, the square sliding block 9 slides in the containing groove 7, and the spring 8 pushes the square sliding block 9 and the second ratchet gear 6 to extend out to be meshed with the first ratchet gear 5, so that the angle of the backrest 2 is locked. The angle of the backrest 2 can be adjusted again by pressing the second ratchet gear 6 to compress the spring 8, separating the second ratchet gear 6 from the first ratchet gear 5 and rotating the backrest 2 around the main shaft.
In order to facilitate the separation of the second ratchet-toothed wheel 6 from the first ratchet-toothed wheel 5, further, the locking device further comprises a communication groove 12 penetrating through the second protrusion 21, a pull wire 4 penetrating through the communication groove 12, and a pull ring 3 disposed outside the base 1, wherein one end of the pull wire 4 is connected with the second ratchet-toothed wheel 6, and the other end is connected with the pull ring 3. Pulling the pull ring 3 to drive the second ratchet wheel 6 and the square slide block 9 to compress the spring 8, separating the second ratchet wheel 6 from the first ratchet wheel 5, rotating the backrest 2 around the main shaft, and then readjusting the angle of the backrest 2.
In order to avoid an excessive amplitude of the pulling action of the tab 3, further, the size of the cross-sectional diameter of said second ratchet-toothed wheel 6 is larger than the size of the side of the square slider 9. The square sliding block 9 has the same cross section as the receiving groove 7, and the second ratchet-toothed wheel 6 cannot enter the receiving groove 7 due to the blocking of the end surface of the second protrusion 21. Thus, the tab 3 can only be pulled a short distance.
Further, the end surface 52 of the first ratchet-toothed wheel is provided with a plurality of first ratchet teeth 51, and the plurality of first ratchet teeth are distributed on the end surface 52 of the first ratchet-toothed wheel in an annular array. The end surface of the second ratchet gear 6 is provided with a second ratchet 61, and the second ratchet 61 and the first ratchet 51 are in central symmetry; the first ratchet teeth 51 have a bottom surface, a top surface 511 and a side surface 512, the bottom surface is fan-shaped, and an angle between the side surface 512 and the end surface 52 of the first ratchet-toothed wheel is 90 degrees.
When the first ratchet teeth 51 rotate clockwise relative to the second ratchet teeth 61, the side surface 512 of the first ratchet teeth 51 is abutted against the side surface of the second ratchet teeth 61, the first ratchet teeth 51 are meshed with the second ratchet teeth 61, and the backrest 2 cannot rotate clockwise around the main shaft 10; when the first ratchet 51 rotates counterclockwise relative to the second ratchet 61, the top surface 511 of the first ratchet 51 slides relative to the top surface 511 of the second ratchet 61, the square slider 9 compresses the spring 8, the second ratchet-toothed wheel 6 moves toward the second protrusion 21, and the backrest 2 can rotate counterclockwise around the main shaft 10, thereby adjusting the angle between the backrest 2 and the base 1.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (6)
1. A car seat convenient for adjusting the angle of a backrest comprises a main shaft, a base and the backrest, wherein a first convex block is arranged in the middle of the edge of the backrest, an installation groove is arranged in the middle of the edge of the base, a pair of second convex blocks are formed on two sides of the installation groove, the first convex block is arranged between the pair of second convex blocks, the main shaft penetrates through the pair of second convex blocks, the installation groove and the first convex block, and the backrest rotates around the main shaft; the ratchet wheel locking mechanism is characterized in that two sides of the first convex block are respectively and fixedly provided with a first ratchet wheel, and a second ratchet wheel and a locking device are arranged in the second convex block; the first ratchet gear and the second ratchet gear are sleeved on the spindle, and the locking device enables the second ratchet gear to be in contact with or separated from the first ratchet gear.
2. The car seat convenient for adjusting the angle of the backrest according to claim 1, wherein the locking means comprises an accommodating groove disposed in the second protrusion, and a spring and a square slider block disposed in the accommodating groove, the cross section of the accommodating groove has the same shape as the cross section of the square slider block, the square slider block is fixedly connected with the second ratchet gear, and the spring pushes the square slider block and the second ratchet gear to extend out to engage with the first ratchet gear.
3. The car seat convenient for adjusting the angle of the backrest of claim 2, wherein the locking device further comprises a communicating groove passing through the second protrusion, a pulling wire passing through the communicating groove and a pulling ring disposed outside the base, one end of the pulling wire is connected with the second ratchet gear, and the other end is connected with the pulling ring.
4. The car seat convenient for adjusting the angle of the backrest of claim 3, wherein the size of the cross-sectional diameter of said second ratchet-toothed wheel is larger than the size of the side of the square slider.
5. The car seat convenient for adjusting the angle of the backrest of claim 4, wherein the end surface of the first ratchet-toothed wheel is provided with a plurality of first ratchet teeth, and the plurality of ratchet teeth are distributed on the end surface of the first ratchet-toothed wheel in an annular array; the end face of the second ratchet gear is provided with a second ratchet, and the second ratchet is centrosymmetric with the first ratchet.
6. The car seat convenient for adjusting the angle of the backrest according to claim 5, wherein the first ratchet has a bottom surface, a top surface and a side surface, the bottom surface is fan-shaped, and the side surface forms an angle of 90 degrees with the end surface of the first ratchet-toothed wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121008116.1U CN215436102U (en) | 2021-05-12 | 2021-05-12 | Car seat convenient to adjust back angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121008116.1U CN215436102U (en) | 2021-05-12 | 2021-05-12 | Car seat convenient to adjust back angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215436102U true CN215436102U (en) | 2022-01-07 |
Family
ID=79707028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121008116.1U Active CN215436102U (en) | 2021-05-12 | 2021-05-12 | Car seat convenient to adjust back angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215436102U (en) |
-
2021
- 2021-05-12 CN CN202121008116.1U patent/CN215436102U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 18 Jincheng Road, Zhouzhuang Town, Jiangyin City, Wuxi City, Jiangsu Province, 214424 Patentee after: Jiangsu Yanli Automotive Parts Co.,Ltd. Address before: 214400 No. 18, Jincheng Road, Zhouzhuang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: Jiangsu Yanli Auto Parts Co.,Ltd. |
|
| CP03 | Change of name, title or address |