A high-precision adjustable car seat

Abstract

A high-precision adjustable car seat comprises a seat cushion and a backrest, wherein the seat cushion or the backrest is equipped with an adjustment mechanism, wherein the adjustment mechanism comprises a first adjustment portion and a second adjustment portion which are symmetrically arranged, and wherein the first adjustment portion and the second adjustment portion extend out of the seat cushion or the backrest. A fastener is mounted on one side of the backrest via a retractor and a webbing, and a fixing clip is mounted on the seat cushion or the backrest via a retractor and a webbing. The fastener comprises a fixing seat, wherein fixing columns are provided on both sides of the fixing seat, and the fixing columns are provided with grooves which cooperate with the fixing clips. An anti-slip column is provided at the end of the fixing column, and the inner wall diameter of the fixing clip is 0.5 mm to 2 mm smaller than the column diameter of the anti-slip column. The beneficial effects of the present application are that it has the function of a child seat, is designed with a safety belt having a simple structure and has a variety of different forms of safety belt fixing methods, and can be selected between the various fixing methods as needed.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile child safety seats, and in particular relates to a high-precision adjustable automobile seat. Background Art

[0002] Child seats in cars can provide protection for children. When a car crashes or other accidents occur, child safety seats can effectively support the child's body, preventing the head and body from being hit, thereby effectively protecting the child's safety. Existing child seats in cars still have the following problems:

[0003] For example, the utility model patent application number CN202120456197.5 discloses a child car seat backrest adjustment device, comprising a car seat body, a headrest disposed on the upper side of the car seat body, and an extended backrest fixedly connected to the lower side of the headrest. The car seat body has an interior slot, into which the extended backrest is inserted. The extended backrest has rectangular slots on both sides, each of which is laterally connected to a first spring. The rectangular slots have limit blocks disposed within the rectangular slots, and the inner ends of the limit blocks are fixedly connected to the ends of the first springs. Fixed blocks are evenly distributed on the left and right ends of the inner wall of the slots at positions corresponding to the limit blocks. The beneficial effect of this utility model is that a worker can pull the headrest, causing the extended backrest connected to the lower side of the headrest to be simultaneously stressed. At this time, the combined length of the headrest and the car seat body changes, thereby adjusting the backrest height to accommodate children of different body sizes, enhancing the applicability of the device, while also improving riding comfort and reducing fatigue during use.

[0004] This utility model patent adopts a separate setting method separated from the main body seat of the car, which has the problems of inconsistent fixing connection method with the main body seat of the car, different fixing reliability levels from car to car, and taking up space in the car.

[0005] For example, the utility model patent application number CN202221629772.8 specifically discloses a child safety seat, comprising a seat body, two safety belts, two shoulder belt covers, a first locking portion, and two second locking portions. The seat body comprises a base and a backrest connected to the base; one end of the two safety belts is connected to the two sides of the base facing the child, and the other end of the two safety belts is connected to one end of the two shoulder belt covers. The other end of the two shoulder belt covers is provided with a shoulder belt fixing plate, and is connected to the two sides of the backrest facing the child at a predetermined angle through the shoulder belt fixing plate; the first locking portion is provided on the base, and the two second locking portions are connected to the two safety belts, respectively, for cooperating with the first locking portion to secure the two safety belts. The shoulder portion of the safety belt is always in a tilted position, effectively preventing the safety belts from becoming entangled with each other. Moreover, when an adult places a child in the child safety seat, the safety belt will not be pressed against the child's back.

[0006] The safety belt of this utility model patent has a complex structure and a single fixing method, and cannot be adjusted as the child grows.

[0007] Therefore, based on some of the above situations in the prior art, this application has been further designed and improved. Summary of the Invention

[0008] To address the shortcomings of the prior art, the present invention provides a highly precise, adjustable car seat with child-seat functionality. Through an adjustment mechanism, the first and second adjustment sections can be raised from the backrest and seat cushion, creating a smaller seating area for children than the adult area, thereby providing protection for children. Furthermore, the seatbelt is designed with a simple structure and offers a variety of different belt fastening options, allowing users to choose from a variety of options as needed.

[0009] In order to solve the above technical problems, the present invention is solved through the following technical solutions.

[0010] A high-precision adjustable car seat, comprising a seat cushion, a backrest, and a safety belt mechanism, is distinguished from the prior art by:

[0011] The seat cushion or backrest is equipped with an adjustment mechanism, which is a rack and pinion drive mechanism or a gear drive mechanism. The adjustment mechanism includes a first adjustment portion and a second adjustment portion, which are symmetrically arranged. The first and second adjustment portions extend from the seat cushion or backrest and are rotatably connected to the seat cushion or backrest. When the adjustment mechanism is adjusted to adult seat mode, the surfaces of the first and second adjustment portions conform to the surfaces of the seat cushion and backrest. When the adjustment mechanism is adjusted to child seat mode, the first and second adjustment portions rotate and protrude.

[0012] The safety belt mechanism includes a holder and a fixing ring. The holder includes a fixing seat, and fixing posts are provided on both sides of the fixing seat. The fixing posts are provided with grooves that cooperate with the fixing ring. The ends of the fixing posts are provided with anti-slip posts that allow the fixing ring to pass through.

[0013] In a preferred embodiment, the adjustment mechanism includes a first limit frame, a second limit frame, a first rack, a second rack and an adjustment motor; an adjustment gear is installed at the output end of the adjustment motor, and the two sides of the adjustment gear are respectively meshed and connected with the first rack and the second rack; first limit columns are installed on both sides of the first rack, and the first limit frame is provided with a first limit groove that is assembled and slidably with the first limit column; second limit columns are installed on both sides of the second rack, and the second limit frame is provided with a second limit groove that is assembled and slidably with the second limit column.

[0014] In a preferred embodiment, a first telescopic rod is installed on the first rack, a first sliding rod is installed on the end of the first telescopic rod, and the first adjusting portion is provided with a first sliding groove that is slidably assembled with the first sliding rod; a second telescopic rod is installed on the second rack, a second sliding rod is installed on the end of the second telescopic rod, and the second adjusting portion is provided with a second sliding groove that is slidably assembled with the second sliding rod.

[0015] In a preferred embodiment, a third limiting groove and a fourth limiting groove are provided on the first limiting frame, the first sliding rod is slidably mounted in the third limiting groove, and the second sliding rod is slidably mounted in the fourth limiting groove.

[0016] In a preferred embodiment, the adjustment mechanism includes a fixed plate, on which an adjustment motor is mounted. The output end of the adjustment motor is equipped with an adjustment gear, and a first transmission mechanism and a second transmission mechanism are respectively engaged on either side of the adjustment gear. The first transmission mechanism is connected to the first adjustment portion, and the second transmission mechanism is connected to the second adjustment portion. The output speeds of the first and second transmission mechanisms are equal, and the output directions are opposite.

[0017] In a preferred embodiment, the first transmission mechanism includes a first transition gear meshing with the adjusting gear, the first transition gear is meshingly connected to the first intermediate gear, the first intermediate gear is meshingly connected to the first output gear, the first adjusting part is equipped with a first rotating shaft, and the first output gear is equipped on the first rotating shaft.

[0018] In a preferred embodiment, the second transmission mechanism includes a second transition gear meshed with the adjusting gear, the second transition gear is meshed with a second intermediate gear, the second intermediate gear is meshed with a reverse gear, the reverse gear is meshed with a second output gear, a second rotating shaft is installed on the second adjusting part, and the second output gear is installed on the second rotating shaft.

[0019] In a preferred embodiment, the inner wall diameter of the fixing clamp is 0.5 mm to 2 mm smaller than the diameter of the anti-slip column.

[0020] In a preferred embodiment, the fastener is mounted on one side of the backrest via a retractor and a webbing, and the fixing clip is mounted on the other side of the seat cushion relative to the fastener via a retractor and a webbing.

[0021] In a preferred embodiment, the fastener is mounted on one side of the backrest via a retractor and webbing. The fastening rings include a first fastening ring, a second fastening ring, a third fastening ring, and a fourth fastening ring. The first fastening ring is mounted on the other side of the backrest from the fastener via a retractor and webbing. The second and third fastening rings are mounted on either side of the seat cushion via a retractor and webbing. The fourth fastening ring is mounted on the front end of the seat cushion via a retractor and webbing.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] 1. It has the function of a child seat. The first adjustment part and the second adjustment part can be raised from the surface of the backrest and the seat cushion through the adjustment mechanism to form a child seating area that is smaller than the adult seating area to protect the child.

[0024] 2. The children's seating area can be adjusted to suit the body shape of children at different growth stages.

[0025] 3. The safety belt is reliably fixed and has a simple structure, which is conducive to reducing production costs.

[0026] 4. There are many different ways to fix the seat belt, and you can choose between them according to your needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of Example 1.

[0028] Figure 2 This is a three-dimensional schematic diagram of the adjustment mechanism in Example 1.

[0029] Figure 3 It is a three-dimensional schematic diagram of part of the adjustment mechanism in Example 1.

[0030] Figure 4It is a three-dimensional schematic diagram of the first adjustment part or the second adjustment part.

[0031] Figure 5 A three-dimensional schematic diagram of the fixator.

[0032] Figure 6 It is a three-dimensional schematic diagram of the adjustment mechanism in Example 2.

[0033] Figure 7 It is a three-dimensional schematic diagram of Example 3.

[0034] Figure 8 This is a plan view of Example 4.

[0035] The following is a description of the symbols in the drawings of the specification:

[0036] 1. Seat cushion;

[0037] 2. Backrest;

[0038] 30. First adjustment portion; 301. First sliding groove; 302. First rotation axis; 31. Second adjustment portion; 311. Second sliding groove; 312. Second rotation axis;

[0039] 40. First limiting frame; 401. First limiting slot; 402. Third limiting slot; 403. Fourth limiting slot; 41. Second limiting frame; 411. Second limiting slot; 42. First rack; 421. First limiting post; 422. First telescopic rod; 423. First sliding rod; 43. Second rack; 431. Second limiting post; 432. Second telescopic rod; 433. Second sliding rod; 44. Adjustment motor; 441. Adjustment gear;

[0040] 50. Fixed plate; 51. First transition gear; 52. First intermediate gear; 53. First output gear; 54. Second transition gear; 55. Second intermediate gear; 56. Reverse gear; 57. Second output gear;

[0041] 60. Fixer; 601. Fixing seat; 602. Fixing column; 603. Groove; 604. Anti-slip column; 61. Fixing clamp; 611. First fixing ring; 612. Second fixing ring; 613. Third fixing ring; 614. Fourth fixing ring. DETAILED DESCRIPTION

[0042] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0043] In the following embodiments, the same or similar numbers throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and therefore cannot be understood as limiting the present invention. In addition, the terms: first, second, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this practical application according to the specific circumstances.

[0045] Example 1

[0046] refer to Figures 1 to 5 , a high-precision adjustable car seat, comprising a seat cushion 1, a backrest 2 and a safety belt mechanism.

[0047] The seat cushion 1 or backrest 2 is equipped with an adjustment mechanism comprising a symmetrically arranged first adjustment portion 30 and a second adjustment portion 31. The first adjustment portion 30 and the second adjustment portion 31 extend from the seat cushion 1 or backrest 2 and are rotatably connected thereto. When the adjustment mechanism is adjusted to adult seat mode, the surfaces of the first adjustment portion 30 and the second adjustment portion 31 conform to the surfaces of the seat cushion 1 and backrest 2. When the adjustment mechanism is adjusted to child seat mode, the first adjustment portion 30 and the second adjustment portion 31 protrude. This mechanism enables the car seat to function as a child seat. The adjustment mechanism can be used to cause the first adjustment portion 30 and the second adjustment portion 31 to protrude from the surfaces of the backrest 2 and the seat cushion 1, forming a child seating area that is smaller than the adult seating area, thereby providing protection for the child.

[0048] The safety belt mechanism includes a fastener 60 and a fixing clip 61. The fastener 60 is installed on one side of the backrest 2 through a retractor and a webbing, and the seat cushion 1 is installed on the other side of the fastener 60 through a retractor and a webbing, so that parents can fix the child at two points. The fastener 60 includes a fixing seat 601, and fixing columns 602 are provided on both sides of the fixing seat 601. The fixing columns 602 are provided with grooves 603 that cooperate with the fixing clip 61. The end of the fixing column 602 is provided with an anti-slip column 604, and the inner wall ring diameter of the fixing clip 61 is 0.5mm~2mm smaller than the column diameter of the anti-slip column 604, so that the fixing clip 61 can pass through the anti-slip column 604 and prevent the fixing clip 61 from falling off. The safety belt with this structural design is reliable in fixation and simple in structure, which is conducive to reducing production costs.

[0049] The adjustment mechanism is adjusted by means of a gear rack, and its specific structure is as follows: the adjustment mechanism includes a first limiting frame 40, a second limiting frame 41, a first rack 42, a second rack 43 and an adjustment motor 44. The adjustment motor 44 is a stepping motor, which can adjust the protrusion degree of the first adjustment part 30 and the second adjustment part 31. The output end of the adjustment motor 44 is equipped with an adjustment gear 441, and the two sides of the adjustment gear 441 are respectively engaged with the first rack 42 and the second rack 43; the first rack 42 is equipped with a first limiting column 421 on both sides, and the first limiting frame 40 is provided with a first limiting groove 401 that is assembled and slidably with the first limiting column 421; the second rack 43 is equipped with a second limiting column 431 on both sides, and the second limiting frame 41 is provided with a second limiting groove 411 that is assembled and slidably with the second limiting column 431.

[0050] The first rack 42 is equipped with a first telescopic rod 422, with a first sliding rod 423 mounted at the end of the first telescopic rod 422. The first adjustment portion 30 is provided with a first assembly area, with a first sliding groove 301 provided on the upper and lower walls thereof, which is slidably assembled with the first sliding rod 423. The second rack 43 is equipped with a second telescopic rod 432, with a second sliding rod 433 mounted at the end thereof. The second adjustment portion 31 is provided with a second assembly area, with a second sliding groove 311 provided on the upper and lower walls thereof, which is slidably assembled with the second sliding rod 433. The first limiting frame 40 is provided with a third limiting groove 402 and a fourth limiting groove 403. The first sliding rod 423 is slidably mounted in the third limiting groove 402, and the second sliding rod 433 is slidably mounted in the fourth limiting groove 403.

[0051] Specifically, the first sliding slot 301 and the second sliding slot 311 are parallel slots, and the third limiting slot 402 and the fourth limiting slot 403 are arcuate slots. The first adjustment portion 30 and the second adjustment portion 31 are rotatably connected to the seat cushion 1 or the backrest 2. The first limiting frame 40 and the second limiting frame 41 are installed in the seat cushion 1 or the backrest 2.

[0052] The operating principle of this embodiment is as follows: the adjustment motor 44 drives the first rack 42 and the second rack 43, causing the first and second telescopic rods 422 and 432 to extend under the restraining action of the third and fourth restraining slots 402 and 403. The first and second sliding rods 423 and 433 then push out the first and second adjustment sections 30 and 31, creating a child seating area that is smaller than the adult seating area, thereby providing protection for the child. The adjustment motor 44 is a stepping motor that can adjust the degree of protrusion of the first and second adjustment sections 30 and 31 to accommodate the body shapes of children at different stages of growth.

[0053] Example 2

[0054] refer to Figure 6 The difference from the previous embodiment is that the adjustment mechanism is a gear-driven structure. The adjustment mechanism includes a fixed plate 50, on which an adjustment motor 44 is mounted. The output end of the adjustment motor 44 is mounted with an adjustment gear 441, with a first transmission mechanism and a second transmission mechanism meshing on either side of the adjustment gear 441. The first transmission mechanism is connected to the first adjustment portion 30, and the second transmission mechanism is connected to the second adjustment portion 31. The output speeds of the first and second transmission mechanisms are equal, but their output directions are opposite.

[0055] The first transmission mechanism includes a first transition gear 51 meshed with the adjustment gear 441, the first transition gear 51 meshedly connected to the first intermediate gear 52, the first intermediate gear 52 meshedly connected to the first output gear 53, the first adjustment portion 30 is mounted on the first rotating shaft 302, and the first output gear 53 is mounted on the first rotating shaft 302. The second transmission mechanism includes a second transition gear 54 meshed with the adjustment gear 441, the second transition gear 54 meshedly connected to the second intermediate gear 55, the second intermediate gear 55 meshedly connected to the reverse gear 56, the reverse gear 56 meshedly linked to the second output gear 57, the second adjustment portion 31 is mounted on the second rotating shaft 312, and the second output gear 57 is mounted on the second rotating shaft 312.

[0056] Example 3

[0057] refer to Figure 7 The difference from the above embodiment is that parents can fix the child at two points, and its specific structure is: the fixing ring 61 is set on the other side of the seat cushion 1 relative to the fixer 60 through a retractor and a webbing.

[0058] Example 4

[0059] refer to Figure 8The difference from the previous embodiment is that parents can secure their children in a variety of ways. Specifically, the securing ring 61 includes a first securing ring 611, a second securing ring 612, a third securing ring 613, and a fourth securing ring 614. The first securing ring 611 is mounted on the other side of the backrest 2 relative to the securing ring 60 via a retractor and webbing. The second and third securing rings 612 and 613 are mounted on either side of the seat cushion 1 via a retractor and webbing. The fourth securing ring 614 is mounted on the front end of the seat cushion 1 via a retractor and webbing. When the securing ring 60 is assembled and secured with the first and fourth securing rings 611 and 614, a three-point securement is achieved. When the securing ring 60 is assembled and secured with the first, second, and third securing rings 611 and 612, a four-point securement is achieved.

[0060] Compared with the prior art, the present invention has the following advantages:

[0061] 1. It has the function of a child seat. The first adjustment part 30 and the second adjustment part 31 can be raised from the surface of the backrest 2 and the seat cushion 1 through the adjustment mechanism to form a child seating area that is smaller than the adult seating area to protect the child.

[0062] 2. The children's seating area can be adjusted to suit the body shape of children at different growth stages.

[0063] 3. The safety belt is reliably fixed and has a simple structure, which is conducive to reducing production costs.

[0064] 4. There are many different ways to fix the seat belt, and you can choose between them according to your needs.

[0065] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention is based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by those skilled in the art fall within the protection scope of the present invention.

Claims

1. A high-precision adjustable car seat, comprising a seat cushion (1), a backrest (2) and a seat belt mechanism, characterized in that: An adjustment mechanism is installed in the seat cushion (1) or the backrest (2), and the adjustment mechanism is a gear rack drive mechanism; the adjustment mechanism includes a first adjustment portion (30) and a second adjustment portion (31) that are symmetrically arranged, and the first adjustment portion (30) and the second adjustment portion (31) extend out of the seat cushion (1) or the backrest (2) and are rotatably connected to the seat cushion (1) or the backrest (2); when the adjustment mechanism is adjusted to an adult seat mode, the surfaces of the first adjustment portion (30) and the second adjustment portion (31) are adapted to the surfaces of the seat cushion (1) and the backrest (2); when the adjustment mechanism is adjusted to a child seat mode, the first adjustment portion (30) and the second adjustment portion (31) are rotated protruding; The safety belt mechanism comprises a holder (60) and a fixing snap ring (61); the holder (60) comprises a fixing seat (601), fixing posts (602) are provided on both sides of the fixing seat (601), and grooves (603) are provided on the fixing posts (602) for cooperating with the fixing snap ring (61); and an anti-slip post (604) is provided at the end of the fixing post (602) for allowing the fixing snap ring (61) to pass through. The adjustment mechanism comprises a first limiting frame (40), a second limiting frame (41), a first rack (42), a second rack (43) and an adjustment motor (44); an adjustment gear (441) is installed at the output end of the adjustment motor (44), and the two sides of the adjustment gear (441) are respectively meshed and connected with the first rack (42) and the second rack (43); first limiting columns (421) are installed on both sides of the first rack (42), and the first limiting frame (40) is provided with a first limiting groove (401) assembled and slidably connected to the first limiting column (421); second limiting columns (431) are installed on both sides of the second rack (43), and the second limiting frame (41) is provided with a second limiting groove (411) assembled and slidably connected to the second limiting column (431); The first rack (42) is provided with a first telescopic rod (422), the end of the first telescopic rod (422) is provided with a first sliding rod (423), and the first adjusting portion (30) is provided with a first sliding groove (301) slidably assembled with the first sliding rod (423); the second rack (43) is provided with a second telescopic rod (432), the end of the second telescopic rod (432) is provided with a second sliding rod (433), and the second adjusting portion (31) is provided with a second sliding groove (311) slidably assembled with the second sliding rod (433); The first limiting frame (40) is provided with a third limiting groove (402) and a fourth limiting groove (403); the first sliding rod (423) is slidably mounted in the third limiting groove (402); and the second sliding rod (433) is slidably mounted in the fourth limiting groove (403).

2. A high-precision adjustable car seat according to claim 1, characterized in that: The inner wall diameter of the fixing clamp (61) is 0.5 mm to 2 mm smaller than the column diameter of the anti-slip column (604).

3. A high-precision adjustable car seat according to claim 2, characterized in that: The fixer (60) is installed on one side of the backrest (2) via a retractor and a webbing; the fixing clip (61) is arranged on the other side of the seat cushion (1) relative to the fixer (60) via a retractor and a webbing.

4. A high-precision adjustable car seat according to claim 2, characterized in that: The fixer (60) is mounted on one side of the backrest (2) via a retractor and a webbing; the fixing ring (61) comprises a first fixing ring (611), a second fixing ring (612), a third fixing ring (613) and a fourth fixing ring (614); the first fixing ring (611) is arranged on the other side of the backrest (2) relative to the fixer (60) via a retractor and a webbing, the second fixing ring (612) and the third fixing ring (613) are respectively arranged on both sides of the seat cushion (1) via a retractor and a webbing, and the fourth fixing ring (614) is arranged at the front end of the seat cushion (1) via a retractor and a webbing.

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