Child safety seat

Abstract

The present invention discloses a child safety seat, which at least includes a base. The base has a abutting surface for abutting against an automobile seat. An indicating device is arranged on the base. The indicating device includes an indicating member and a driving rod. The indicating member has a first position and a second position on the base. The driving rod has a swinging rod portion extending in the up and down direction. The driving rod has a first working state and a second working state. When the driving rod is in the first working state, at least part of the swinging rod portion is located behind the abutting surface. When the driving rod is in the second working state, the swinging rod portion is entirely located in front of the abutting surface. During the process of the driving rod converting from the first working state to the second working state, the driving rod is linked to cause the indicating member to convert from the first position to the second position. Whether the safety seat is correctly installed and fastened to the automobile seat by a seat belt can be judged through the position of the indicating member.

Description

Technical Field

[0001] The present invention relates to the field of children's products, and particularly to a child safety seat. Background Art

[0002] To ensure the safety of children in the car, a child safety seat for children to ride is usually installed on the car seat. Most child safety seats are fixed to the car seat by vehicle seat belts. Currently, when users install or use a child safety seat in daily life, they cannot intuitively understand whether the safety seat is correctly installed and fastened to the car seat by the seat belt, which brings certain potential safety hazards to children's riding. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an improved child safety seat.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a child safety seat, at least including a base, the base has a abutting surface for abutting against the car seat, and an indicating device is provided on the base. The indicating device includes:

[0005] An indicating member, the indicating member is movably provided on the base, and the indicating member has a first position and a second position on the base;

[0006] A driving rod, the driving rod is rotatably provided on the base around a first rotation center line, the driving rod has a swing rod portion, the driving rod has a first working state and a second working state. When the driving rod is in the first working state, at least a part of the swing rod portion is located behind the abutting surface; when the driving rod is in the second working state, the swing rod portion is entirely located in front of the abutting surface;

[0007] A first elastic member, providing a force required for the driving member to rotate so that the swing rod portion moves backward to the abutting surface;

[0008] Wherein, during the process of the driving rod converting from the first working state to the second working state, the indicating member is linked to convert from the first position to the second position.

[0009] Preferably, for the child safety seat, the driving rod has a connecting rod portion, the connecting rod portion and the swing rod portion are respectively arranged on different sides of the first rotation center line along the length extension direction of the driving rod, the indicating member abuts against the connecting rod portion and moves relative to the base when the driving rod rotates around the first rotation center line, or the indicating member is fixedly provided on the connecting rod portion.

[0010] Furthermore, an installation cavity is provided on the base, and a through hole communicating with the installation cavity is provided on the base. The driving rod is rotatably arranged in the installation cavity. When the driving rod is in the first working state, at least a part of the swing rod portion passes through the through hole to the rear of the abutting surface.

[0011] Furthermore, a limiting flange is further provided on the swing rod portion. The limiting flange is always located in the installation cavity, and when the driving rod is in the first working state, the limiting flange abuts against the cavity wall of the installation cavity backward.

[0012] Preferably, the first elastic member is a spring, and the spring abuts between the front portion of the swing rod portion and the base along its own length direction.

[0013] Furthermore, the indicating member abuts against the connecting rod portion and moves relative to the base when the driving rod rotates around the first rotation center line. The indicating device further includes a second elastic member that provides the force required for the indicating member to move from the first position to the second position.

[0014] As a preferred embodiment, the indicating member is rotatably arranged on the base around a second rotation center line, and the indicating member abuts against the connecting rod portion.

[0015] Furthermore, a first abutting surface and a second abutting surface are sequentially connected on the connecting rod portion. When the driving rod is in the first working state, the indicating member abuts against the first abutting surface; when the driving rod is in the second working state, the indicating member abuts against the second abutting surface.

[0016] Preferably, the indicating member has an arc-shaped indicating surface with the axis line of the second rotation center line as the rotation center line. A first indicating portion and a second indicating portion are sequentially arranged on the arc-shaped indicating surface. A window is provided on the base. When the indicating member is in the first position, the first indicating portion is exposed from the window, and the second indicating portion is blocked; when the indicating member is in the second position, the second indicating portion is exposed from the window, and the first indicating portion is blocked.

[0017] Preferably, the swing rod portion extends in the up-down direction, the connecting rod portion extends in the front-rear direction, the first rotation center line extends in the left-right direction, and the included angle between the length extension direction of the connecting rod portion and the length extension direction of the swing rod portion is an obtuse angle.

[0018] Further preferably, when the child safety seat is installed on the vehicle seat, during the process that the abutting surface faces backward and approaches the backrest of the vehicle seat, the backrest abuts against the driving rod, causing the driving rod to automatically switch from the first working state to the second working state.

[0019] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: When the child safety seat of the present invention is installed on the vehicle seat, the change in the installation state of the base will cause the position of the indicating member to automatically change. Therefore, during the installation process, the operator only needs to confirm the position of the indicating member to quickly and intuitively determine whether the base of the safety seat is correctly installed and fastened to the vehicle seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 is a perspective structural view of a child safety seat according to a specific example of the present invention;

[0021] Attached Figure 2 is Figure 1 a longitudinal sectional view of the attached

[0022] Attached Figure 3 is Figure 2 an enlarged view of part A in the attached

[0023] Attached Figure 4 is Figure 1 a perspective structural view of the child safety seat in the attached

[0024] Attached Figure 5 is Figure 4 a longitudinal sectional view of the attached

[0025] Attached Figure 6 is Figure 1 a perspective structural view of the child safety seat in the attached

[0026] Attached Figure 7 is Figure 6 a longitudinal sectional view of the attached

[0027] Where: 1000, vehicle seat; 100, base; 200, abutting surface; 300, safety belt; 400, backrest;

[0028] 1. Perforation; 2. Indicator device; 21. Indicator; 211. Arc-shaped indicating surface; 211a. First indicating part; 211b. Second indicating part; 211c. Limit boss; 22. Torsion spring; 23. Driving rod; 231. Swing rod part; 231a. Limit flange; 232. Link rod part; 232a. First abutting surface; 232b. Second abutting surface; 24. Spring; 25. Rotating shaft; 3. Installation cavity; 4. Window. Detailed implementation mode

[0029] The following descriptions of directions such as up, down, left, right, front, back, inside, and outside are defined with reference to the directions or positional relationships observed by a child when sitting upright on the child safety seat, and the purpose is only to clearly illustrate the relative positional relationships of the components on the child safety seat.

[0030] The technical solution of the present invention will be further described below in conjunction with the drawings and specific embodiments.

[0031] See Figures 1 to 7 As shown, a child safety seat includes a base 100 and a seat (not shown in the figure) installed on the base 100. The child safety seat is mainly connected to the car seat 1000 through a vehicle seat belt 300 to achieve the fixed installation of the base 100 on the car seat 1000. Among them, the base 100 has a contact surface 200 for fitting with the backrest 400 of the car seat 1000. When the base 100 is correctly installed and tied to the car seat 1000 through the seat belt 300, the contact surface 200 abuts against the backrest 400 of the car seat 1000.

[0032] An indicator device 2 is provided on the base 100. By directly observing the indication content of the indicator device 2, it can be quickly and intuitively determined whether the base 100 is correctly installed and tied to the car seat 100.

[0033] As shown in the figures, the indicator device 2 includes:

[0034] An indicator 21, which is movably arranged on the base 100. The indicator 21 has a switchable first position and second position on the base 100. In this embodiment, when in the first position, the indicator 21 indicates that the base 100 is not correctly installed and tied to the car seat 1000 through the seat belt 300, and when in the second position, the indicator 21 indicates that the base 100 has been correctly installed and tied to the car seat 1000 through the seat belt 300;

[0035] The drive rod 23 is rotatably connected to the base 100 about a first rotational axis extending in the left-right direction. Specifically, the drive rod 23 is rotatably connected to the base 100 via a rotating shaft 25, the axis of which constitutes the aforementioned first rotational axis. The drive rod 23 includes at least a rocker portion 231 extending in the vertical direction. Rotation of the drive rod 23 about the rotating shaft 25 changes the position of the rocker portion 231, thereby enabling the drive rod 23 to switch between a first operating state and a second operating state. When the drive rod 23 is in the first operating state, the rocker portion 231 is at least partially located behind the contact surface 200. When the drive rod 23 is in the second operating state, the rocker portion 231 is entirely located in front of the contact surface 200.

[0036] The first elastic member is used to provide the force required for the drive rod 23 to rotate so that the rocker arm portion 231 moves rearward of the abutment surface 200, so that when the abutment surface 200 of the base 100 is abutted against the backrest 400 of the car seat 1000, the drive rod 23 can remain in the first working state.

[0037] The driving rod 23 and the indicator 21 are arranged in a linkage manner, so that the driving rod 23 is linked to the indicator 21 to switch from the first position to the second position during the process of switching from the first working state to the second working state.

[0038] In this way, when the child safety seat is installed on the car seat 1000, if the base 100 is correctly installed and fastened to the car seat 1000 by the safety belt, the abutment surface 200 is in abutment with the backrest 400, and the rocker arm portion 231 can move forward under the abutment of the backrest 400, so that the drive rod 23 rotates around the rotating shaft 25 and switches from the first working state to the second working state. At this time, the drive rod 23 is linked to make the indicator 23 move relative to the base 100, so that the indicator 23 is linked and switches from the first position to the second position, indicating that the base 100 has been correctly installed and fastened to the car seat 1000 by the safety belt 300.

[0039] As shown in the accompanying drawings, the drive rod 23 further includes a connecting rod portion 232. This connecting rod portion 232 and the rocker portion 231 are disposed on opposite sides of the axis of the rotating shaft 25 along the length of the drive rod 23. In this embodiment, the indicator member 21 abuts against the connecting rod portion 232 and moves relative to the base 100 as the drive rod 23 rotates about the rotating shaft 25, thereby switching between a first position and a second position. The indicator device 2 also includes a second elastic member for providing the force required to move the indicator member 21 from the first position to the second position, thereby enabling the indicator member 21 to be moved to the second position under the action of the second elastic member in the absence of external force.

[0040] In some other embodiments, the indicating member 21 can also be directly fixed on the connecting rod portion 232. Through the position change of the connecting rod portion 232, the indicating member 21 is switched between the first position and the second position. When adopting this setting method, the position change of the connecting rod portion 232 directly causes the position of the indicating member 21 to be switched, and there is no need to provide a second elastic member.

[0041] As shown in the attached drawings, especially Figure 2 、 Figure 3 shown, in this embodiment, the connecting rod portion 232 extends in the front-rear direction. The included angle between the length extension direction of the connecting rod portion 232 and the length extension direction of the swing rod portion 231 is an obtuse angle. The lower part of the swing rod portion 231 is connected to the rear of the connecting rod portion 232, and the rotating shaft 25 is provided at the lower position of the swing rod portion 231.

[0042] See Figure 1 、 Figure 2 shown, an installation cavity 3 is provided on the base 100. The driving rod 23 is rotatably provided on the base 100 and is located in the installation cavity 3. A through hole 1 communicating with the installation cavity 3 is further provided on the base 100. The through hole 1 is located at the rear of the base 100. The swing rod portion 231 provided in the installation cavity 3 can move backward toward the rear surface of the abutting surface 200 and pass through the through hole 1. A limiting flange 231a is provided on the swing rod portion 231. The limiting flange 231a is located at the upper part of the swing rod portion 231 and is always located in the installation cavity 3. The limiting flange 231a can abut against the cavity wall of the installation cavity 3 to limit the amplitude of the swing rod portion 231 moving backward toward the rear surface of the abutting surface 200, so as to prevent the whole swing rod portion 231 from passing through the through hole 1.

[0043] As shown in the attached drawings, the first elastic member is also provided in the installation cavity 3. The first elastic member is located in front of the swing rod portion 231 and is used to provide the acting force required to drive the driving member 23 to rotate so that the swing rod portion 231 moves backward toward the rear surface of the abutting surface 200. Under this acting force, the swing rod portion 231 can pass through the through hole 1. In this embodiment, the first elastic member is a spring 24, and the spring 24 abuts between the front portion of the swing rod portion 231 and the base 100 along its own length direction.

[0044] In this embodiment, the indicating member 21 is rotatably connected to the base 100 around the second rotation center line. The second rotation center line extends in the left-right direction and is parallel to the first rotation center line. The indicating member 21 is located at the middle position of the base 100. The indicating member 21 abuts against the connecting rod portion 232 of the driving rod 3. When the driving rod 3 rotates around the rotating shaft 25, the indicating member 21 rotates due to the abutting effect between the connecting rod portion 232 and the indicating member 21 to be switched between the first position and the second position.

[0045] Specifically here, the indicating member 21 is in a semi-circular ring shape, and its axis line forms the above-mentioned second rotation center line. The indicating member 21 has an arc-shaped indicating surface 211 with the second rotation center line as the rotation center line. A first indicating portion 211a and a second indicating portion 211b are sequentially arranged on the arc-shaped indicating surface 211. A window 4 is further provided on the base 100. When the indicating member 21 is in the first position, the first indicating portion 211a is exposed from the window 4, and the second indicating portion 211b is blocked; when the indicating member 21 is in the second position, the second indicating portion 211b is exposed from the window 4, and the first indicating portion 211a is blocked. In other embodiments, the indicating member 21 can also be set to a structure other than the arc-shaped indicating surface, as long as different indicating portions can be exposed from the window 4 during the process of the change of the position of the indicating member 21.

[0046] In this embodiment, the first indicating portion 211a and the second indicating portion 211b are provided with colors that are easy to distinguish. For example, the first indicating portion 211a is set to red, and the second indicating portion 211b is set to green. The position of the indicating member 21 can be determined by the color exposed through the window 4. In other embodiments, different texts, patterns, etc. that can be clearly distinguished can also be provided on the indicating portion, so as to facilitate the user to intuitively observe the change in the position of the indicating member 21.

[0047] See Figure 3 As shown, a limiting boss 211c is further provided on the indicating member 21. The limiting boss 211c is located at the rear of the first indicating portion 211a. During the process of the indicating member 21 changing from the second position to the first position, the indicating member 21 rotates forward around the second rotation center under the push of the connecting rod portion 232. At this time, the flange 211c can abut against the cavity wall beside the window 4, so that the first indicating portion 211a is accurately exposed from the window 4 and prevents the indicating member 21 from continuing to rotate forward. In this embodiment, the second elastic member is a torsion spring 22, and the torsion spring 22 is wound around the second rotation center to provide the acting force required for the indicating member 21 to move from the second position to the first position.

[0048] During the process of the driving rod 23 rotating to make the indicating member 21 rotate and switch positions, different positions of the connecting rod portion 232 cooperate with the indicating member 21. Specifically, see Figure 3As shown, the connecting rod portion 232 has a first abutting surface 232a and a second abutting surface 232b that are sequentially connected. The first abutting surface 232a is located in front of the second abutting surface 232b. The rear portion of the indicating member 21 is provided with a contact surface 21a. When the driving rod 23 is in the first working state, the indicating member 21 is in the first position, and the indicating member 21 abuts against the first abutting surface 232a, and the contact surface 21a is in contact with the first abutting surface 232a. When the driving rod 23 is in the second working state, the indicating member 21 is in the second position, and the indicating member 21 abuts against the second abutting surface 232b, and the contact surface 21a is in contact with the second abutting surface 232b. In this way, the indicating member 21 can be stably in the first position or the second position under the action of the connecting rod portion 232. When the child safety seat is not installed on the vehicle seat, and when starting to install the base 100 on the vehicle seat 1000, there is a large gap between the abutting surface 200 and the backrest 400 of the vehicle seat 1000, and the safety belt 300 is not tightened either. See Figure 4 and Figure 5 As shown, at this time, the swing rod portion 231 is not under external force, and under the action of the spring 24, a part of the swing rod portion 231 passes through the through hole 1 and extends behind the abutting surface 200. The limiting flange 231a abuts against the cavity wall of the installation cavity 3 backward, the connecting rod portion 232 abuts against the contact surface 21a of the indicating member 21, and the limiting boss 211c of the indicating member 21 abuts against the cavity wall behind the window 4 upward. The user can see the exposed first indicating portion 211a through the window 4.

[0049] By moving the base 100 backward, the abutting surface 200 is made to approach the backrest 400 of the vehicle seat 1000, and at the same time, the safety belt 300 is tightened to fix the base 100. During this process, the backrest 400 and the driving rod 23 abut against each other, causing the driving rod 23 to automatically switch from the first working state to the second working state.

[0050] When the base 100 is correctly installed and tightened on the vehicle seat 1000 by the safety belt 300, see Figure 6 and Figure 7 As shown, at this time, the abutting surface 200 is completely in contact with the backrest 400. The swing rod portion 231 is received in the installation cavity 3 under the abutting action of the backrest 400 and is located in front of the abutting surface 200, causing the driving rod 23 to switch to the second working state. The connecting rod portion 232 swings downward, and under the action of the second elastic member, the indicating member 21 rotates and switches to the second position, so that the second indicating portion 211b is exposed from the window 4. The user can confirm that the base 100 and the vehicle seat 1000 are firmly fixed by observing the second indicating portion 211b through the window 4.

[0051] If the base 100 is not installed correctly or the safety belt 300 is loose, a gap will be generated between the abutment surface 200 and the backrest 400. At this time, under the backward force of the spring 24, the rocker portion 231 moves toward the rear of the abutment surface 200, driving the driving rod 23 to rotate backward around the rotating shaft 25. Part of the rocker portion 231 passes through the through hole 1. At the same time, during the rotation of the driving rod 23 around the rotating shaft 25, the connecting rod portion 232 pushes the indicator 21 to rotate around the second rotation center line, the torsion spring 22 elastically deforms and stores energy, and the indicator 21 changes from the second position to the first position. The second indicator portion 211b at the window 4 withdraws and the first indicator portion 211a is exposed. At this time, the user can see the first indicator portion 211a through the window 4 and realize that there is a problem with the installation of the base 100, and can make adjustments in time.

[0052] Although not shown, in other embodiments, the drive rod 23 can be rotatably connected to the base 100 about a rotational centerline extending in the vertical direction. Accordingly, the rocker portion 231 of the drive rod 23 is configured to extend in the left-right direction, and the indicator 21 is positioned on the left or right side of the base 100. The rotation of the drive rod 23 causes the position of the indicator 21 to change. However, when using this method, the indicator 21 needs to be observed from the left or right side of the base 100, and two sets are usually required.

[0053] In summary, when the user is installing or using the child safety seat daily, the user can judge whether the child safety seat is fastened to the car seat 1000 by the safety belt 300 through the indicator portion exposed through the window 4, so as to eliminate safety hazards.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A child safety seat comprising at least a base, wherein the base has a contact surface for contacting with a car seat, characterized in that: The base is provided with an indicator device, which includes: an indicator, the indicator being movably disposed on the base, the indicator having a first position and a second position on the base; The cam is secured to the base and has an angularly aligned pivotal portion for camming the cam, wherein the cam is secured to the base with respect to the first rotation axis and the cam is secured to the base with respect to the first rotation axis. a first elastic member, providing the driving rod with the force required to rotate so as to move the rocker portion toward the rear of the abutment surface; Wherein, the driving rod is linked to cause the indicator to switch from the first position to the second position during the process of switching from the first working state to the second working state.

2. The child safety seat according to claim 1, characterized in that: The base is provided with an installation cavity, and the base is provided with a through hole interconnected with the installation cavity. The drive rod is rotatably arranged in the installation cavity. When the drive rod is in the first working state, at least a portion of the rocker arm portion passes through the through hole to the rear of the abutment surface.

3. The child safety seat according to claim 2, characterized in that: The rocker portion further has a limiting flange, which is always located in the installation cavity. When the drive rod is in the first working state, the limiting flange rests backward against the cavity wall of the installation cavity.

4. The child safety seat according to claim 1, characterized in that: The first elastic member is a spring, and the spring is pressed between the front portion of the rocker portion and the base along its length direction.

5. The child safety seat according to claim 1, characterized in that: The indicator member can be detachably abutted against the connecting rod portion and moves relative to the base when the driving rod rotates around the first rotation center line. The indicator device also includes a second elastic member that provides the force required for the indicator member to move from the first position to the second position.

6. The child safety seat according to claim 5, characterized in that: The indicator is rotatably arranged on the base around a second rotation center line, and the indicator abuts against the connecting rod portion.

7. The child safety seat according to claim 6, characterized in that: The connecting rod portion has a first abutting surface and a second abutting surface connected in sequence. When the driving rod is in the first working state, the indicator member abuts against the first abutting surface; when the driving rod is in the second working state, the indicator member abuts against the second abutting surface.

8. The child safety seat according to claim 6, characterized in that: The indicator member has an arc-shaped indicating surface with the axis of the second rotation center line as the rotation center line, and a first indicating portion and a second indicating portion are sequentially provided on the arc-shaped indicating surface. The base is provided with a window. When the indicator member is in the first position, the first indicating portion is exposed from the window and the second indicating portion is blocked. When the indicator is located at the second position, the second indicator portion is exposed from the window and the first indicator portion is blocked.

9. The child safety seat according to claim 1, characterized in that: The rocker portion extends in the up-down direction, the connecting rod portion extends in the front-back direction, the first rotation center line extends in the left-right direction, and the angle between the length extension direction of the connecting rod portion and the length extension direction of the rocker portion is an obtuse angle.

10. The child safety seat according to any one of claims 1 to 9, characterized in that: When the child safety seat is installed on the car seat, as the abutment surface approaches rearwardly toward the backrest of the car seat, the backrest and the drive rod abut against each other, causing the drive rod to automatically switch from the first working state to the second working state.

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