Child safety seat of automobile

Abstract

The automobile child safety seat comprises a base, a gear adjusting plate distributed in the front-back direction is arranged on the base, and a plurality of gear adjusting holes are formed in the gear adjusting plate; the adjusting mechanism comprises gear rods matched with the gear adjusting holes; the seat is located on the adjusting mechanism and connected with the adjusting mechanism; the chair is characterized in that a first sliding groove is formed in the upper surface of the base, a sliding strip distributed from front to back is formed on the lower surface of the seat in a protruding mode, and the sliding strip is in sliding fit with the first sliding groove. And the service life of the adjusting mechanism is prolonged, the effect of stabilizing the posture of the seat is achieved, and the advantage that one object has two purposes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats for children specially applicable to vehicles, and particularly relates to an automobile child safety seat. Background Art

[0002] With the enhancement of people's safety awareness, many people will install safety seats in cars to ensure the safety of young children when riding in cars. Due to different heights of young children of different ages when riding in the car, it is necessary to adjust the reclining angle of the seat so that the limbs of the young children can stretch freely and the top of the head does not touch the roof of the car.

[0003] In the prior art, there are already child safety seats with the above functions. For example, a Chinese invention patent "Child Safety Seat" with a patent number of ZL201710170018.X (publication number of CN 106945576B) discloses an angle adjustment mechanism that can adjust the seat posture. The seat is arranged on the base through the angle adjustment mechanism. The user pulls the shift lever to make the positioning column move in the sliding groove and fall into different positioning grooves to adjust the posture of the seat. However, this type of seat has the following disadvantages:

[0004] 1. The reaction force of the force maintaining the posture of this type of seat acts on the angle adjustment mechanism, and the angle adjustment mechanism is subjected to excessive force and is prone to deformation and shortened service life after long-term use;

[0005] 2. This type of seat cannot fix the seat angle only by relying on the gear lever. On the one hand, this will cause the gear lever to be subjected to excessive force and deformation. On the other hand, the gear lever will also be pressed and drop, resulting in unstable seat posture. Therefore, the above patent also provides a front guide post and a rear guide post to move in the sliding groove to ensure the stability of the seat in different gear postures, but this increases the steps of installing the front and rear guide posts on the angle adjustment mechanism and aligning them with the sliding groove, which is not convenient for installation. Summary of the Utility Model

[0006] The first technical problem to be solved by the utility model is to provide an automobile child safety seat that can share the force on the adjustment mechanism in view of the above-mentioned prior art situation.

[0007] The second technical problem to be solved by the utility model is to provide an automobile child safety seat that is convenient to install in view of the above-mentioned prior art situation.

[0008] The technical solution adopted by the utility model to solve the first technical problem is: the automobile child safety seat includes:

[0009] A base, on which a gear adjustment plate is arranged in the front-back direction, and a plurality of gear adjustment holes are arranged on the gear adjustment plate;

[0010] Adjusting mechanism, including a gear lever adapted to each of the gear adjustment holes;

[0011] Seat, located above the adjusting mechanism and connected to the adjusting mechanism;

[0012] It is characterized in that: the upper surface of the base has a first sliding groove, and a sliding strip distributed from front to back protrudes from the lower surface of the seat, and the sliding strip is slidably matched with the first sliding groove.

[0013] In order to enhance the stability of the cooperation between the sliding strip and the first sliding groove, further, a limiting groove is formed by partial inward depression on the outer side surface of the sliding strip, and a limiting portion protrudes inward from the upper end of the first sliding groove, and the limiting portion is slidably matched with the limiting groove. The setting of the limiting portion and the limiting groove limits the movement range of the sliding strip and the first sliding groove in the vertical direction, ensuring that the sliding strip and the first sliding groove will not disengage in the vertical direction during relative sliding.

[0014] In order to increase the adjustment range of the seat, further, the seat includes a seat cushion and a backrest connected to the seat cushion, and the sliding strip extends from the lower surface of the seat cushion from front to back to the rear surface of the backrest. The setting method of the sliding strip extending to the rear surface of the backrest increases the relative movement range of the sliding strip and the first sliding groove.

[0015] Further, the sliding strip is integrally arc-shaped, and correspondingly, the first sliding groove is also arc-shaped.

[0016] In order to adapt to various lying postures of users, further, each of the gear adjustment holes is evenly distributed on the gear adjustment plate, and there is a certain height difference between the frontmost gear adjustment hole and the rearmost gear adjustment hole, so that when the gear lever switches between the frontmost gear adjustment hole and the rearmost gear adjustment hole, the dihedral angle α between the inner side surface of the backrest and the bottom surface of the base decreases or increases by ~ degrees. The adjustment range of the seats on the market is generally below ~ degrees at present, and the adjustment range of ~ degrees of this technical solution is significantly larger than that of the existing products on the market.

[0017] The technical solution adopted by the present invention to solve the second technical problem is: the seat cushion and the backrest are detachably connected, and the connection surface between the seat cushion and the backrest divides the sliding strip into a seat cushion sliding strip located on the lower surface of the seat cushion and a backrest sliding strip located on the rear surface of the backrest. Installation openings are provided at the front end and the rear end of the first sliding groove, and the installation openings are used for the seat cushion sliding strip and the backrest sliding strip to pass through. The setting of the installation openings enables the user to install the seat cushion and the backrest step by step into the first sliding groove and then connect the seat cushion and the backrest. The first sliding groove shares a part of the weight of the seat for the gear lever, preventing the seat from tilting backward, eliminating the setting of the guiding column in the prior art, simplifying the structure of the adjusting mechanism, and further eliminating the step of aligning the guiding column, facilitating the overall installation of the child safety seat for automobiles by the user.

[0018] To facilitate the installation of the backrest and the seat by the user, further, a protruding portion is formed by downward protrusion at the first connection end where the backrest is connected to the seat, a socket is formed by downward depression at the second connection end where the seat is connected to the backrest, the protruding portion is adapted to the socket, a rivet hole is penetrated through the first connection end and the second connection end, and a rivet is inserted into the rivet hole for connecting the first connection end and the second connection end. When installing, the user can complete the installation by aligning and inserting the protruding portion into the socket and then connecting with a rivet. The steps are simple and it can prevent splicing misalignment.

[0019] To make it labor-saving for the user to adjust the seat angle, further, a rib is formed by local upward protrusion at the bottom of the first chute. The setting of the rib reduces the contact area between the first chute and the sliding bar.

[0020] To make the movement of the adjusting mechanism stable, further, a second chute is formed by local lateral depression on the inner side of the gear adjusting plate, a slider corresponding to the second chute is formed by local protrusion on the outside of the adjusting mechanism, and the slider is in sliding fit with the second chute. The cooperation between the slider and the second chute enables the base to move along the fixed track of the second chute.

[0021] Compared with the prior art, the advantages of the present utility model are as follows: The sliding fit between the first chute and the sliding bar between the base and the seat shares the pressure of the base on the adjusting mechanism, increasing the service life of the adjusting mechanism; and the sliding fit between the first chute and the sliding bar restricts the downward movement of the seat relative to the base, and only a gear lever is needed to restrict the movement in the front-back direction along the first chute, playing a role in stabilizing the seat posture and having the advantage of "one thing with two uses". BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0023] Figure 2 It is an exploded view of the structure of an embodiment of the present utility model;

[0024] Figure 3 It is a sectional view of an embodiment of the present utility model;

[0025] Figure 4 It is a sectional view of another perspective of an embodiment of the present utility model;

[0026] Figure 5 It is an exploded view of the structure of the seat of an embodiment of the present utility model;

[0027] Figure 6 It is a schematic structural diagram of the base of an embodiment of the present utility model;

[0028] Figure 7Cross-sectional view of the gear lever located in the frontmost gear adjustment hole of the embodiment of the present utility model;

[0029] Figure 8 Cross-sectional view of the gear lever located in the rearmost gear adjustment hole of the embodiment of the present utility model. Detailed implementation manners

[0030] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0031] As Figures 1 to 8 shown, it is the best embodiment of the present utility model. The automotive child safety seat of this embodiment is mainly installed in the car seat to carry children. The child seat needs to adjust the reclining angle of the seat so that the limbs of the young child can stretch freely. However, for the existing safety seats, the main force is on the adjustment mechanism, and the adjustment mechanism is prone to deformation after long-term compression. Therefore, it will be beneficial to provide an automotive child safety seat that can share the force on the adjustment mechanism and is convenient to install. The detailed structure of this automotive child safety seat will be elaborated below:

[0032] Referring to Figures 1 to 3 , this automotive child safety seat includes a base 1, an adjustment mechanism 2, and a seat 3. Among them, a gear adjustment plate 11 distributed in the front-back direction is provided on the base 1, and a plurality of gear adjustment holes 111 are provided on the gear adjustment plate 11; the adjustment mechanism 2 includes a gear lever 21 adapted to each gear adjustment hole 111; the seat 3 is located above the adjustment mechanism 2 and is connected to the adjustment mechanism 2; the upper surface of the base 1 has a first chute 12, and a slide bar 31 protruding from the lower surface of the seat 3 is distributed from front to back, and the slide bar 31 is slidably matched with the first chute 12.

[0033] Referring to Figure 4 , a limiting groove 311 is formed by partial inward depression on the outer side surface of the slide bar 31, and a limiting portion 121 protrudes inward from the upper end of the first chute 12, and the limiting portion 121 is slidably matched with the limiting groove 311. The setting of the limiting portion 121 and the limiting groove 311 limits the movement range of the slide bar 31 and the first chute 12 in the vertical direction, ensuring that the slide bar 31 and the first chute 12 will not disengage in the vertical direction during relative sliding, and enhancing the stability of the cooperation between the slide bar 31 and the first chute 12.

[0034] The seat 3 includes a seat cushion 32 and a backrest 33 connected to the seat cushion 32, and the slide bar 31 extends from the lower surface of the seat cushion 32 from front to back to the rear surface of the backrest 33. The setting method of the slide bar 31 extending to the rear surface of the backrest 33 increases the relative movement range of the slide bar 31 and the first chute 12, and increases the adjustment range of the seat 3. The slide bar 31 is integrally arc-shaped, and correspondingly, the first chute 12 is also arc-shaped.

[0035] Referring to Figure 7 and Figure 8, the gear adjustment holes 111 are evenly distributed on the gear adjustment plate 11. There is a certain height difference between the frontmost gear adjustment hole 111 and the rearmost gear adjustment hole 111. Thus, when the gear lever 21 switches between the frontmost gear adjustment hole 111 and the rearmost gear adjustment hole 111, the dihedral angle α between the inner side 330 of the backrest 33 and the bottom surface 10 of the base 1 decreases or increases by 30 - 35 degrees, preferably 35 degrees. Specifically, when the gear lever 21 is in the frontmost gear adjustment hole 111, the angle of the dihedral angle α is 124.5 degrees; when the gear lever 21 is in the rearmost gear adjustment hole 111, the angle of the dihedral angle α is 169.5 degrees. Currently, the adjustment range of seats on the market is generally below 30 degrees. The adjustment range of 30 - 35 degrees in this technical solution is significantly larger than that of existing products on the market, which enables the above-mentioned child safety seat for automobiles to adapt to various lying postures of users.

[0036] See Figure 2 and Figure 4 , the seat 32 and the backrest 33 are detachably connected. The connecting surface between the seat 32 and the backrest 33 divides the slide bar 31 into a seat slide bar 34 located on the lower surface of the seat and a backrest slide bar 35 located on the rear surface of the backrest 33. The front end and the rear end of the first chute 12 are open with mounting openings 122 for the seat slide bar 34 and the backrest slide bar 35 to pass through. The setting of the mounting openings 122 enables users to install the seat 32 and the backrest 33 step by step into the first chute 12 and then connect the seat 32 and the backrest 33. The first chute 12 shares a part of the weight of the seat 3 for the gear lever 21, preventing the seat 3 from tilting backward, eliminating the setting of the guiding column in the prior art, simplifying the structure of the adjusting mechanism 2, and thus eliminating the step of aligning the guiding column, facilitating the overall installation of the child safety seat for automobiles by users.

[0037] See Figure 5 , a protruding portion 332 is formed by protruding downward at the first connection end 331 where the backrest 33 is connected to the seat 32, and a jack 322 is formed by recessing downward at the second connection end 321 where the seat 32 is connected to the backrest 33. The protruding portion 332 is adapted to the jack 322. The first connection end 331 and the second connection end 321 are provided with a rivet hole 4 through which a rivet 5 is inserted for connecting the first connection end 331 and the second connection end 321. When installing, users can complete the installation by aligning and inserting the protruding portion 332 into the jack 322 and then connecting with the rivet 5. The steps are simple and prevent splicing misalignment, facilitating the installation of the backrest 33 and the seat 22 by users.

[0038] See Figure 6 , a rib 6 is formed by locally protruding upward at the bottom of the first chute 12. The setting of the rib 6 reduces the contact area between the first chute 12 and the slide bar 31, thereby making it labor-saving for users to adjust the angle of the seat 3.

[0039] Finally, a second chute 112 is formed by a partial lateral depression on the inner side of the gear shifting plate 11, and a slider 22 corresponding to the second chute 112 is formed by a partial protrusion on the outer side of the adjusting mechanism 2. The slider 22 is slidably engaged with the second chute 112. The cooperation between the slider 22 and the second chute 112 enables the base 3 to move along a fixed track of the second chute 112, thereby making the movement of the adjusting mechanism 2 stable. In addition, the shape of the upper surface of the rib 6 is the same as that of the upper surface of the second chute 112.

[0040] The installation process of the vehicle child safety seat in this embodiment is as follows:

[0041] (1) Installation of the seat 32 and the base 1: The user first installs the adjusting mechanism 2 at the bottom of the seat 32, then aligns the seat slide 34 with the installation opening 122 and slides it in. During the sliding-in process, the adjusting mechanism 2 is pulled to make the gear lever 21 contract inward. After the gear lever 21 is aligned with the gear shifting hole 111, the adjusting mechanism is released. One end of the gear lever 21 is inserted into the gear shifting hole 111. At the same time, the slider 22 slides into the second chute 112, and the installation of the seat 32 and the base 1 is completed;

[0042] (2) Installation of the backrest 33 and the seat 32: Refer to Figure 5 , after aligning and inserting the protruding part 332 of the backrest 33 with the insertion hole 322 of the seat 32, they are connected with rivets 5 in each rivet hole 4, and the installation of the backrest 33 and the seat 32 is completed.

[0043] The angle adjustment operation of the vehicle child safety seat in this embodiment is as follows: Refer to Figure 7 , at this time, the gear lever 21 is located in the rearmost gear shifting hole 111, and the angle of the dihedral angle α is 124.5 degrees. The user pulls the adjusting mechanism 2 forward to make the gear lever 21 contract and move forward, and the seat 3 slides forward along the first chute 12 as a whole; when the gear lever 21 is aligned with the foremost gear shifting hole 111, the adjusting mechanism 2 is released, and the gear lever 21 falls into the foremost gear shifting hole 111. The state at this time is shown in Figure 8 , and the angle of the dihedral angle α is adjusted to 169.5 degrees, and the angle adjustment operation is completed.

Claims

1. A car child safety seat, comprising: A base (1), wherein the base (1) is provided with a gear adjustment plate (11) distributed in the front-rear direction, and the gear adjustment plate (11) is provided with a plurality of gear adjustment holes (111); An adjustment mechanism (2) comprising a gear lever (21) adapted to each of the gear adjustment holes (111); A seat (3) is located on the adjustment mechanism (2) and is connected to the adjustment mechanism (2); Features: The upper surface of the base (1) has a first slide groove (12), and the lower surface of the seat (3) is protruding to form a slide bar (31) distributed from front to back, and the slide bar (31) is slidably matched with the first slide groove (12).

2. The child safety seat for automobiles according to claim 1, characterized in that: The outer side surface of the slide bar (31) is partially recessed inward to form a limiting groove (311), and the upper end of the first slide groove (12) protrudes inward to form a limiting portion (121), and the limiting portion (121) is slidably matched with the limiting groove (311).

3. The child safety seat for automobiles according to claim 2, characterized in that: The chair (3) comprises a seat (32) and a backrest (33) connected to the seat (32), and the slide bar (31) extends from the lower surface of the seat (32) from front to rear to the rear surface of the backrest (33).

4. The child safety seat for automobiles according to claim 3, characterized in that: The sliding bar (31) is arc-shaped as a whole, and correspondingly, the first sliding groove (12) is also arc-shaped.

5. The child safety seat for automobiles according to claim 3, characterized in that: The gear adjustment holes (111) are evenly distributed on the gear adjustment plate (11), and the gear adjustment hole (111) at the front and the gear adjustment hole (111) at the rear have a certain height difference, so that when the gear lever (21) switches between the gear adjustment hole (111) at the front and the gear adjustment hole (111) at the rear, the dihedral angle (α) between the inner side surface (330) of the chair back (33) and the bottom surface (10) of the base (1) decreases or increases by 30 to 35 degrees.

6. The child safety seat for automobiles according to any one of claims 3 to 5, characterized in that: The seat (32) and the backrest (33) are connected in a detachable manner, and the connecting surface between the seat (32) and the backrest (33) divides the slide bar (31) into a seat slide bar (34) located on the lower surface of the seat and a backrest slide bar (35) located on the rear surface of the backrest (33). The front and rear ends of the first slide groove (12) are openly provided with installation openings (122), and the installation openings (122) are used for the seat slide bar (34) and the backrest slide bar (35) to pass through.

7. The child safety seat for automobiles according to claim 6, characterized in that: The first connection end (331) connecting the chair back (33) and the chair seat (32) protrudes downward to form a protruding portion (332), and the second connection end (321) connecting the chair seat (32) and the chair back (33) is recessed downward to form a plug hole (322), and the protruding portion (332) is adapted to the plug hole (322), and the first connection end (331) and the second connection end (321) are penetrated by a rivet hole (4), and a rivet (5) is penetrated in the rivet hole (4) for connecting the first connection end (331) and the second connection end (321).

8. The child safety seat for automobiles according to any one of claims 1 to 5, characterized in that: The bottom of the first sliding groove (12) is partially convex to form a convex strip (6).

9. The child safety seat for automobiles according to any one of claims 1 to 5, characterized in that: The inner side surface of the gear adjustment plate (11) is partially recessed to form a second slide groove (112), and the outer side surface of the adjustment mechanism (2) is partially protruded to form a slider (22) corresponding to the second slide groove (112), and the slider (22) is slidably matched with the second slide groove (112).

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