Car seat base synchronous engagement structure and child car seat

Abstract

The present invention discloses a synchronous engaging structure for a car seat base, comprising a base frame; two engaging mechanisms for connecting the seat to the base frame and switchable between an unlocked state and a locked state; two limiting components respectively disposed on the two engaging mechanisms, the limiting components being triggered by the seat to release the restriction on the engaging mechanism from the unlocked state to the locked state; and a linkage mechanism for synchronously switching the two engaging mechanisms between the locked state and the unlocked state. The present invention also discloses a child car seat. The present invention provides a synchronous engaging structure for a car seat base where, when one of the two engaging mechanisms engages with the seat, the linkage mechanism prevents both engaging mechanisms from entering the locked state and remains in the unlocked state, thus avoiding the illusion of a completely fixed seat and confirming the seat's connection status to prevent accidents.

Description

[Technical Field]

[0001] This invention relates to the field of children's products technology, specifically to a synchronized locking structure for car seat bases and a child car seat. [Background Technology]

[0002] Currently, most seats and bases on the market use a synchronous locking mechanism between the front and rear of the seat. However, this synchronous locking mechanism is complex and costly, and it is difficult to know the locking status. If the front and rear axles fail to lock at the same time, i.e., only one axle is locked, it will create the illusion of complete fixation, which can easily lead to adverse consequences and safety hazards. [Summary of the Invention]

[0003] This invention solves the technical problem that the engagement status of the seat and base of current child car seats is difficult to determine. When only one axis is engaged, it creates the illusion of complete fixation, misleading the user and causing safety hazards. This invention provides a simple and reasonably designed synchronous engagement structure for car seat base and a child's crib.

[0004] This invention is achieved through the following technical solution:

[0005] The synchronized engagement structure of the car seat base includes...

[0006] Base frame;

[0007] A two-locking mechanism is used to connect the seat to the base frame and can be switched between an unlocked state and a locked state;

[0008] Two limiting components are respectively disposed on the two engagement mechanisms. The limiting components are used to release the restriction on the engagement mechanism from the unlocked state to the locked state when triggered by the seat.

[0009] A linkage mechanism is used to enable the two locking mechanisms to switch synchronously between a locked state and an unlocked state.

[0010] When one of the limiting components releases the restriction on one of the engaging mechanisms, the other engaging mechanism is restricted by the other limiting component to be in an unlocked state, and the linkage mechanism keeps both engaging mechanisms in the unlocked state simultaneously.

[0011] When both limiting components release the restriction on the two locking mechanisms, the two locking mechanisms simultaneously switch from the unlocked state to the locked state through the linkage mechanism.

[0012] As described above, the synchronous engaging structure of the car seat base includes an engaging component, which includes a locking seat and a hook hinged to the locking seat to rotate between a locked position and an unlocked position. After the hook rotates to the unlocked position, a limiting component restricts it to keep the hook in the unlocked position. A positioning shaft triggers the limiting component to release the restriction on the hook, so that the hook rotates to the locked position.

[0013] As described above, the synchronous engaging structure of the car seat base includes a locking slot on the locking seat and a limiting slot on the hook. The limiting component includes a synchronous slider that slides with the locking seat, a synchronous positioning pin on the synchronous slider, and a synchronous compression spring for pressing the synchronous slider outward from the locking slot. The synchronous compression spring presses against the synchronous slider to drive the synchronous positioning pin into the limiting slot when the hook rotates to the unlocked position. The positioning shaft presses against the synchronous slider to disengage the synchronous positioning pin from the limiting slot, and the hook rotates to the locked position.

[0014] As described above, in the synchronized engagement structure of the car seat base, the synchronized slider is provided with a sliding groove, which slides in cooperation with the hinge shaft of the locking seat and the hook.

[0015] As described above, the synchronous locking structure of the car seat base includes two locking components spaced apart on the left and right sides. Each locking component includes a locking seat, a hook hinged to the locking seat to rotate between a locked position and an unlocked position, and a connecting member disposed between the two hooks. The linkage mechanism includes a linkage member, which is respectively connected to the two connecting members in the two locking mechanisms to drive the two hooks to rotate synchronously.

[0016] As described above, the synchronous engaging structure of the car seat base has a first slot and a second slot on the linkage member for the two connecting members to be engaged. The second slot includes an upper slot and a lower slot with the same through direction and opposite opening directions, and a through slot located between the upper slot and the lower slot and connecting the two. The recessed direction of the through slot intersects with the through direction of the upper slot and the lower slot, so that the connecting member can be inserted into the through slot and then flipped to be inserted into the upper slot and the lower slot.

[0017] The synchronous engaging structure of the car seat base as described above also includes a reset member for keeping the hook rotating toward the locked position.

[0018] As described above, in the synchronous engagement structure of the car seat base, the reset component includes a tension spring disposed between the base frame and the linkage mechanism.

[0019] As described above, in the synchronous engagement structure of the car seat base, the two engagement mechanisms are arranged at intervals on the base frame, and the two limiting components are distributed diagonally.

[0020] The present invention also provides a child car seat, including a seat, a car seat base synchronous engagement structure as described above, and two positioning shafts disposed on the seat, the positioning shafts engaging with the engagement mechanism.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] This invention provides a synchronous engaging structure for a car seat base. When the seat is connected to the base frame, the two positioning shafts on the seat trigger two limiting components, causing the two engaging mechanisms to simultaneously switch from the unlocked state to the locked state, thereby restricting the seat to the base frame. When the seat is separated from the base frame, the linkage mechanism is operated to cause the two engaging mechanisms to simultaneously switch from the locked state to the unlocked state, releasing the restriction on the seat. When one of the two engaging mechanisms engages with the seat, the linkage component prevents the two engaging mechanisms from entering the locked state and keeps them in the unlocked state. This avoids creating the illusion that the seat is completely fixed, confirms the connection status of the seat, and prevents accidents. [Attached Image Description]

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of this embodiment;

[0025] Figure 2 This is an internal structure diagram of the embodiment in the locked state;

[0026] Figure 3 This is the internal structure in the unlocked state in this embodiment. Figure 1 ;

[0027] Figure 4 This is a diagram illustrating the installation of connectors and linkages. Figure 1 ;

[0028] Figure 5 This is a diagram illustrating the installation of connectors and linkages. Figure 2 ;

[0029] Figure 6 This is the internal structure in the unlocked state in this embodiment. Figure 2 .

Detailed Implementation Methods

[0030] To make the technical problems solved by the present invention, the technical solutions, and the beneficial effects clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0031] The synchronized engagement structure of the car seat base includes...

[0032] Base frame 1;

[0033] The two-locking mechanism 2 is used to connect the seat to the base frame 1 and can be switched between an unlocked state and a locked state;

[0034] Two limiting components 22 are respectively disposed on the two engagement mechanisms 2. The limiting components 22 are used to release the restriction on the engagement mechanism 2 from the unlocked state to the locked state when triggered by the seat.

[0035] Linkage mechanism 3 is used to enable the two locking mechanisms 2 to switch synchronously between locked and unlocked states.

[0036] When one of the limiting components 22 releases the restriction on one of the engaging mechanisms 2, the other engaging mechanism 2 is restricted by the other limiting component 22 to be in an unlocked state, and the linkage mechanism 3 keeps both engaging mechanisms 2 in the unlocked state simultaneously.

[0037] When both limiting components 22 release the restriction on the two locking mechanisms 2, the two locking mechanisms 2 simultaneously switch from the unlocked state to the locked state through the linkage mechanism 3.

[0038] The engaging mechanism 2 includes an engaging component 21, which includes a locking seat 211 and a hook 212 hinged to the locking seat 211 to rotate between a locked position and an unlocked position. After the hook 212 rotates to the unlocked position, a limiting component 22 restricts it to keep the hook 212 in the unlocked position. A positioning shaft triggers the limiting component 22 to release the restriction on the hook 212, allowing the hook 212 to rotate to the locked position. The locking seat and the hook cooperate to restrict the positioning shaft 5 onto the locking seat. When the hook rotates relative to the positioning seat away from the locking groove, the engaging mechanism is in the unlocked state. When the hook rotates relative to the positioning seat to block the opening of the locking groove, the engaging mechanism is in the locked state.

[0039] This invention provides a synchronous engaging structure for a car seat base. When the seat is connected to the base frame, the two positioning shafts on the seat trigger two limiting components, causing the two engaging mechanisms to simultaneously switch from the unlocked state to the locked state, thereby restricting the seat to the base frame. When the seat is separated from the base frame, the linkage mechanism is operated to cause the two engaging mechanisms to simultaneously switch from the locked state to the unlocked state, releasing the restriction on the seat. When one of the two engaging mechanisms engages with the seat, the linkage component prevents the two engaging mechanisms from entering the locked state and keeps them in the unlocked state. This avoids creating the illusion that the seat is completely fixed, confirms the connection status of the seat, and prevents accidents.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the locking seat 211 is provided with a locking groove 2111, the hook 212 is provided with a limiting groove 213, and the limiting component 22 includes a synchronous slider 221 that slides with the locking seat 211, a synchronous positioning pin 222 provided on the synchronous slider 221, and a synchronous compression spring 223 for pressing the synchronous slider 221 in a direction protruding from the locking groove 2111. The synchronous compression spring 223 presses against the synchronous slider 221 so that when the hook 212 rotates to the unlock position, it drives the synchronous positioning pin 222 to engage in the limiting groove 213; the positioning shaft presses against the synchronous slider 221 so that it drives the synchronous positioning pin 222 to disengage from the limiting groove 213, and the hook 212 rotates to the locked position. Under the action of the synchronous compression spring, the synchronous slider slides along the locking seat in a direction protruding from the locking groove, and drives the synchronous positioning pin to move. When the latch rotates relative to the locking seat to the unlocked position, the synchronizing positioning pin engages in the limiting groove, thus keeping the latch in the unlocked position. When the positioning shaft on the seat engages with the locking groove, the positioning shaft presses down on the synchronizing slider, causing the synchronizing positioning pin to disengage from the limiting groove. Under the action of the reset component, the latch rotates to the locked position. The synchronizing positioning pin presses against the outer edge of the latch.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the synchronizing slider 221 is provided with a sliding groove 224, which slides in engagement with the hinge axis of the locking seat 211 and the hook 212. The sliding groove is used to limit the sliding stroke of the synchronizing slider.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation, the engaging mechanism 2 includes two engaging components 21 spaced apart horizontally. Each engaging component 21 includes a locking seat 211, a hook 212 hinged to the locking seat 211 to rotate between a locked position and an unlocked position, and a connecting member 214 disposed between the two hooks 212. The linkage mechanism 3 includes a linkage member 31, which connects to the two connecting members 214 in the two engaging mechanisms 2 respectively, so as to drive the two hooks 212 to rotate synchronously. The two engaging components spaced apart horizontally simultaneously lock a positioning shaft, and the linkage member enables the two hooks to rotate synchronously.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation, the linkage 31 is provided with a first slot 311 and a second slot 312 for the two connectors 214 to be inserted into. The second slot 312 includes an upper slot 313 and a lower slot 314 with the same through direction but opposite opening directions, and a through groove 315 located between the upper slot 313 and the lower slot 314 and connecting the two. The recessed direction of the through groove 315 intersects with the through direction of the upper slot 313 and the lower slot 314, so that the connector 214 can be inserted into the through groove 315 and then flipped to be inserted into the upper slot 313 and the lower slot 314. With the first slot 311, the connector can easily be disengaged from the opening direction of the first slot. With the second slot, the connector is difficult to disengage. Because the hook is welded to the connector, the connector cannot be inserted into the second slot. Therefore, during installation, the connector... Figure 4 After entering the through slot in the direction of the arrow in the image, as shown... Figure 5 Rotate in the direction of the arrow, and both ends of the connector enter the upper and lower slots respectively. At this time, the connector is difficult to disengage from the second slot.

[0044] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a reset member 4 for maintaining the hook 212 in the locked position. The reset member can be a tension spring as described below, or a torsion spring that presses against the locking seat and the hook respectively.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation, the reset member 4 includes a tension spring 41 disposed between the base frame 1 and the linkage mechanism 3. The limiting component restricts the tension spring from pulling the linkage member when the latch is in the locked position. After the limiting component releases the restriction, the linkage member locks the two engaging mechanisms into the locked state.

[0046] Furthermore, as a preferred embodiment of this solution and not a limitation, the two engaging mechanisms 2 are arranged at a distance from each other on the base frame 1, and the two limiting components 22 are distributed diagonally. The engaging mechanism includes two engaging components, one of which is equipped with a limiting mechanism. This allows the other engaging component to achieve the same effect through a connecting piece, thus saving costs.

[0047] A child car seat, including a seat, a car seat base synchronous engagement structure as described above, and two positioning shafts disposed on the seat, wherein the positioning shafts engage with the engagement mechanism 2.

[0048] The working principle of this embodiment is as follows:

[0049] This invention provides a synchronous engaging structure for a car seat base. When the seat is connected to the base frame, the two positioning shafts on the seat trigger two limiting components, causing the two engaging mechanisms to simultaneously switch from the unlocked state to the locked state, thereby restricting the seat to the base frame. When the seat is separated from the base frame, the linkage mechanism is operated to cause the two engaging mechanisms to simultaneously switch from the locked state to the unlocked state, releasing the restriction on the seat. When one of the two engaging mechanisms engages with the seat, the linkage component prevents the two engaging mechanisms from entering the locked state and keeps them in the unlocked state. This avoids creating the illusion that the seat is completely fixed, confirms the connection status of the seat, and prevents accidents.

[0050] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A steam seat base synchronous engagement structure, characterized by: include Base frame (1); The two-card locking mechanism (2) can switch between an unlocked state and a locked state; Linkage mechanism (3) is used to enable the two locking mechanisms (2) to switch synchronously from the locked state to the unlocked state; When one of the locking mechanisms (2) is in the unlocked state, the linkage mechanism (3) restricts the other locking mechanism (2) from entering the locked state from the unlocked state; The engaging mechanism (2) includes an engaging component (21) and a limiting component (22). The engaging component (21) includes a locking seat (211) and a hook (212) hinged to the locking seat (211) to rotate between a locked position and an unlocked position. After the hook (212) rotates to the unlocked position, the limiting component (22) restricts it so that the hook (212) remains in the unlocked position. The positioning shaft triggers the limiting component (22) to release the restriction on the hook (212) so that the hook (212) rotates to the locked position. The locking seat (211) is provided with a locking groove (2111), and the hook (212) is provided with a limiting groove (213). The limiting component (22) includes a synchronous slider (221) that slides with the locking seat (211), a synchronous positioning pin (222) provided on the synchronous slider (221), and a synchronous compression spring (223) for pressing the synchronous slider (221) in a direction protruding from the locking groove (2111). The synchronous compression spring (223) presses the synchronous slider (221) to drive the synchronous positioning pin (222) into the limiting groove (213) when the hook (212) rotates to the unlock position. The positioning shaft presses the synchronous slider (221) to drive the synchronous positioning pin (222) to disengage from the limiting groove (213), and the hook (212) rotates to the locking position.

2. The kettle base synchronous engagement structure of claim 1, wherein: The synchronous slider (221) is provided with a sliding groove (224), which slides in cooperation with the hinge axis of the locking seat (211) and the hook (212).

3. The simultaneous engagement structure of a kettle seat and a base according to claim 1, characterized in that: The locking mechanism (2) includes two locking components (21) spaced apart on the left and right. Each locking component (21) includes a locking seat (211), a hook (212) hinged to the locking seat (211) to rotate between the locked position and the unlocked position, and a connector (214) disposed between the two hooks (212). The linkage mechanism (3) includes a linkage member (31), which is connected to the two connectors (214) in the two locking mechanisms (2) respectively, so as to drive the two hooks (212) to rotate synchronously.

4. The kettle base synchronous engagement structure of claim 3, wherein: The linkage (31) is provided with a first slot (311) and a second slot (312) for the two connectors (214) to be inserted into respectively. The second slot (312) includes an upper slot (313) and a lower slot (314) with the same through direction and opposite opening directions, and a through groove (315) located between the upper slot (313) and the lower slot (314) and connecting the two. The recessed direction of the through groove (315) intersects with the through direction of the upper slot (313) and the lower slot (314) so ​​that the connector (214) can be inserted into the through groove (315) and then flipped to be inserted into the upper slot (313) and the lower slot (314).

5. The kettle base synchronous engagement structure of claim 1, wherein: It also includes a reset member (4) for keeping the hook (212) rotating toward the locked position.

6. The synchronous engagement structure of the car seat base according to claim 5, characterized in that: The reset component (4) includes a tension spring (41) disposed between the base frame (1) and the linkage mechanism (3).

7. The synchronous engagement structure of the car seat base according to claim 3, characterized in that: The two locking mechanisms (2) are arranged at a distance from each other on the base frame (1). The locking mechanism (2) includes a limiting component (22) provided on the locking component (21). The two limiting components (22) are distributed diagonally.

8. A child car seat, characterized in that: The seat includes a synchronous engaging structure for the seat base as described in any one of claims 1 to 7, with two positioning shafts provided on the seat, the two positioning shafts engaging with the two engaging mechanisms (2) respectively, so as to synchronously enter the locked state from the unlocked state.

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