Latching double lock and safety seat

Abstract

The application provides a latch type two-way lock and a safety seat, and relates to the technical field of safety seats.The latch type two-way lock comprises a mounting seat, an ISOFIX assembly, a fixing rod and a locking device.The fixing rod is connected with the ISOFIX assembly, and the fixing rod is slidingly connected with the mounting seat.The locking device is installed on the mounting seat, and the locking device is used for locking the fixing rod.The latch type two-way lock can limit the ISOFIX assembly, so that the ISOFIX assembly is prevented from being retracted during the process of being connected with an anchor point.

Description

Technical Field

[0001] This invention relates to the field of child safety seat technology, and in particular to a pin-type double-lock and a child safety seat. Background Technology

[0002] When installing a child car seat, the ISOFIX assembly needs to be pulled out. While keeping the ISOFIX assembly in the extended position, connect the connector of the ISOFIX assembly to the anchor point on the car seat. During the installation process, manual force needs to be applied to prevent the ISOFIX assembly from retracting, which makes the installation of the child car seat inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a pin-type double lock and a child safety seat that can lock and limit the ISOFIX components.

[0004] In a first aspect, the pin-type double lock provided by the present invention includes: a mounting base, an ISOFIX assembly, a fixing rod, and a locking device;

[0005] The fixing rod is connected to the ISOFIX assembly, and the fixing rod is slidably connected to the mounting base;

[0006] The locking device is mounted on the mounting base and is used to lock the fixing rod.

[0007] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the ISOFIX assembly is connected to a pull strap for pulling the ISOFIX assembly from the retraction station to the extension station.

[0008] In conjunction with the first aspect, the present invention provides a second possible implementation of the first aspect, wherein the locking device includes an electromagnetic lock, and the bolt of the electromagnetic lock is provided with a bevel.

[0009] The electromagnetic lock has elasticity, and the bolt tends to remain in the locked state when locked.

[0010] During the process of the ISOFIX assembly moving from the retracting station to the extending station, the fixing rod abuts against the inclined surface and switches the locking tongue to the unlocked state;

[0011] When the ISOFIX component moves to the extended position, the locking tongue switches from the unlocked state to the locked state.

[0012] In conjunction with the second possible implementation of the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the interface of the ISOFIX component is provided with a latching signal switch, the latching signal switch being used to detect the connection status of the interface.

[0013] In conjunction with the third possible implementation of the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein the locking device and the latching signal switch are respectively connected to the controller;

[0014] The controller is used to control the locking device to switch from the locked state to the unlocked state when the interface is connected to the ISOFIX anchor point on the car seat.

[0015] In conjunction with the second possible implementation of the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein the electromagnetic lock is configured to switch to the unlocked state in a powered state and to switch to the locked state in a powered-off state.

[0016] In conjunction with the first aspect, the present invention provides a sixth possible implementation of the first aspect, wherein the mounting base includes: a base, a first bracket, and a second bracket;

[0017] The first bracket and the second bracket are respectively mounted on the base;

[0018] The fixing rod is slidably connected between the first bracket and the second bracket.

[0019] In conjunction with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the mounting base further includes a pin mounting bracket, the pin mounting bracket being installed between the first bracket and the second bracket, and the locking device being installed on the pin mounting bracket.

[0020] In conjunction with the sixth possible implementation of the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein the first bracket and the second bracket are respectively provided with a stop tooth adapted to the ISOFIX assembly.

[0021] Secondly, the safety seat provided by the present invention includes the pin-type double lock provided in the first aspect.

[0022] The embodiments of the present invention bring the following beneficial effects: a fixed rod is used to connect with the ISOFIX assembly, the fixed rod is slidably connected to the mounting base, and a locking device is installed on the mounting base. By locking the fixed rod with the locking device, the ISOFIX assembly can be limited, thereby preventing the ISOFIX assembly from shrinking during the connection with the anchor point.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 An exploded view of a double-lock with a bolt provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the double-lock pin type provided in an embodiment of the present invention when the ISOFIX assembly is in the retracted position;

[0027] Figure 3 This is a schematic diagram of the pin-type double lock provided in an embodiment of the present invention during the process of the ISOFIX assembly moving from the retraction station to the extension station;

[0028] Figure 4 This is a schematic diagram of the double-lock pin type provided in an embodiment of the present invention with the ISOFIX assembly in the extended position.

[0029] Icons: 100 - Mounting base; 101 - Gear; 110 - Base; 120 - First bracket; 130 - Second bracket; 140 - Pin mounting bracket; 200 - ISOFIX assembly; 210 - Interface; 300 - Fixing rod; 400 - Locking device; 410 - Locking tongue; 411 - Bevel; 500 - Pull strap. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities in the International System of Units (SI), or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Example 1

[0034] like Figure 1 As shown, the pin-type double lock provided in this embodiment of the invention includes: a mounting base 100, an ISOFIX assembly 200, a fixing rod 300, and a locking device 400; the fixing rod 300 is connected to the ISOFIX assembly 200 and is slidably connected to the mounting base 100; the locking device 400 is mounted on the mounting base 100 and is used to lock the fixing rod 300.

[0035] As the ISOFIX assembly 200 moves between the retracted and extended positions, the retaining rod 300 slides relative to the mounting base 100. The retaining rod 300 can be locked by the locking device 400, thereby limiting the ISOFIX assembly 200 and preventing it from retracting during the connection of the ISOFIX assembly 200 to the anchor point on the car seat.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment of the invention, the ISOFIX component 200 is connected to the pull strap 500, which is used to pull the ISOFIX component 200 from the retracting station to the extending station.

[0037] When it is necessary to connect the ISOFIX assembly 200 to the anchor point on the car seat, the pull strap 500 is manually pulled to move the ISOFIX assembly 200 from the retracted position to the extended position. With the ISOFIX assembly 200 in the extended position, the locking device 400 locks the fixing rod 300, thereby preventing the ISOFIX assembly 200 from retracting.

[0038] In some embodiments, the locking device 400 may be a set screw or a latch mounted on the mounting base 100, which can lock the ISOFIX assembly 200 at any position between the retracted position and the extended position. When the ISOFIX assembly 200 is connected to the anchor point on the vehicle seat, the locking device 400 is operated to unlock the ISOFIX assembly 200, thereby ensuring that the ISOFIX assembly 200 can slide relative to the mounting base 100.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the locking device 400 includes an electromagnetic lock, and the bolt 410 of the electromagnetic lock is provided with a bevel 411;

[0040] The electromagnetic lock has elasticity, and the bolt 410 tends to remain in the locked state when locked.

[0041] During the process of ISOFIX component 200 moving from the retracted station to the extended station, the fixed rod 300 abuts against the inclined surface 411 and switches the locking tongue 410 to the unlocked state.

[0042] When the ISOFIX component 200 moves to the extended position, the locking tongue 410 switches from the unlocked state to the locked state.

[0043] See Figure 2 The inclined plane 411 slopes downwards from the retracted position near the ISOFIX assembly 200 to the extended position near the extended position. During the movement of the ISOFIX assembly 200 from the retracted position to the extended position, the fixing rod 300 abuts against the inclined plane 411, and the fixing rod 300 presses against the locking tongue 410 along the inclined plane 411, thereby switching the locking tongue 410 from the locked state to the unlocked state. When the locking tongue 410 switches to the locked state, the fixing rod 300 can move to the right side of the locking tongue 410. At this time, the ISOFIX assembly 200 reaches the extended position, and the locking tongue 410 springs back to the locked state under the action of elasticity, preventing the fixing rod 300 from moving to the left, thus preventing the ISOFIX assembly 200 from moving towards the retracted position.

[0044] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the interface 210 of the ISOFIX component 200 is equipped with a latch signal switch, which is used to detect the connection status of the interface 210.

[0045] Specifically, the latch signal switch includes a micro switch. When the interface 210 of the ISOFIX assembly 200 is connected to the anchor point on the car seat, the latch signal switch is triggered. The connection status of the interface 210 can be determined based on the triggering state of the latch signal switch.

[0046] Furthermore, the locking device 400 and the latch signal switch are respectively connected to the controller;

[0047] The controller is used to control the locking device 400 to switch from the locking state to the unlocking state when the interface 210 is connected to the ISOFIX anchor point on the car seat.

[0048] When the interface 210 of the ISOFIX assembly 200 is connected to the anchor point on the car seat, the controller controls the locking device 400 to unlock according to the signal of the latch signal switch, thereby releasing the limit on the fixing rod 300. At this time, the mounting base 100 can move relative to the ISOFIX assembly 200 so that the child safety seat can be pushed firmly on the car seat.

[0049] Furthermore, the electromagnetic lock is configured to switch to the unlocked state when powered on and to the locked state when powered off.

[0050] When the electromagnetic lock is energized, the latch 410 retracts; when the electromagnetic lock is de-energized, the latch 410 is pushed out by the spring force. When the interface 210 of the ISOFIX assembly 200 is connected to the anchor point on the car seat, the controller controls the electromagnetic lock to be energized and maintains the energized state for a certain period of time. During this period, the mounting base 100 can move relative to the ISOFIX assembly 200, thereby disengaging the ISOFIX assembly 200 from the locked state.

[0051] like Figure 1 As shown, the mounting base 100 includes: a base 110, a first bracket 120, and a second bracket 130;

[0052] The first bracket 120 and the second bracket 130 are respectively mounted on the base 110;

[0053] The fixed rod 300 is slidably connected between the first bracket 120 and the second bracket 130.

[0054] Specifically, the first bracket 120 and the second bracket 130 are respectively provided with sliding grooves, the fixing rod 300 passes through the sliding groove of the first bracket 120 and the sliding groove of the second bracket 130, and the fixing rod 300 can slide along the sliding groove.

[0055] Furthermore, the mounting base 100 also includes a pin mounting bracket 140, which is installed between the first bracket 120 and the second bracket 130, and the locking device 400 is installed on the pin mounting bracket 140.

[0056] The pin mounting bracket 140 is provided with a mounting hole, the locking device 400 is inserted into the mounting hole, and the locking device 400 is connected to the pin mounting bracket 140 by a threaded fastener.

[0057] like Figure 1 and Figure 2 As shown, the first bracket 120 and the second bracket 130 are respectively provided with a gear tooth 101 adapted to the ISOFIX component 200.

[0058] During the movement of the ISOFIX assembly 200 from the retracting station to the extending station relative to the mounting base 100, the ISOFIX assembly 200 can slide relative to the stop tooth 101, and when the ISOFIX assembly 200 is in the locked state, the stop tooth 101 can prevent the ISOFIX assembly 200 from moving towards the retracting station.

[0059] Example 2

[0060] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the safety seat provided in this embodiment of the invention includes the pin-type double lock provided in Embodiment 1.

[0061] The safety seat provided in this embodiment is equipped with a pin-type double lock, which has the technical effect of a pin-type double lock, and will not be described in detail here.

[0062] The steps for installing a child safety seat in a car are as follows:

[0063] By pulling the strap 500, the ISOFIX assembly 200 is pulled from the retractable position to the extended position. During the movement of the ISOFIX assembly 200, the fixing rod 300 abuts against the inclined surface 411, causing the locking tongue 410 to retract to the unlocked state, thus enabling the ISOFIX assembly 200 to move to the extended position. When the ISOFIX assembly 200 can move to the extended position, the locking tongue 410 automatically switches to the locking state under the action of elasticity. In the locked state, the locking tongue 410 can prevent the ISOFIX assembly 200 from retracting. At this time, when the child safety seat is installed in the car seat, during the process of pushing the child safety seat to connect the interface 210 of the ISOFIX assembly 200 to the anchor point on the car seat, the ISOFIX assembly 200 will not retract, thus eliminating the need to manually keep the ISOFIX assembly 200 extended. When interface 210 is connected to the anchor point on the car seat, the controller controls the locking device 400 to switch to the unlocked state. After maintaining the unlocked state for a certain period of time, the locking device 400 is de-energized, and the locking tongue 410 automatically switches to the locking state under the action of spring force. During the period when the locking device 400 switches to the unlocked state, the ISOFIX assembly 200 can move away from the extension station to between the retraction station and the extension station. Therefore, when the child safety seat is connected to the car seat, the locking device 400 no longer limits the ISOFIX assembly 200.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bolt-type double lock, characterized in that, include: Mounting base (100), ISOFIX assembly (200), retaining rod (300), and locking device (400); The fixing rod (300) is connected to the ISOFIX assembly (200), and the fixing rod (300) is slidably connected to the mounting base (100); The locking device (400) is mounted on the mounting base (100), and the locking device (400) is used to lock the fixing rod (300); The ISOFIX assembly (200) is connected to a pull strap (500), which is used to pull the ISOFIX assembly (200) from the retraction station to the extension station; The locking device (400) includes an electromagnetic lock, the bolt (410) of which has a bevel (411); the electromagnetic lock has elasticity, and in the locked state, the bolt (410) tends to remain in the locked state; during the process of the ISOFIX assembly (200) moving from the retracted position to the extended position, the fixing rod (300) abuts against the bevel (411) and switches the bolt (410) to the unlocked state; when the ISOFIX assembly (200) moves to the extended position, the bolt (410) switches from the unlocked state to the locked state; The interface (210) of the ISOFIX component (200) is provided with a latch signal switch, which is used to detect the connection status of the interface (210); The locking device (400) and the latch signal switch are respectively connected to the controller; the controller is used to control the locking device (400) to switch from the locked state to the unlocked state when the interface (210) is connected to the ISOFIX anchor point on the car seat.

2. The double-lock pin type according to claim 1, characterized in that, The electromagnetic lock is configured to switch to the unlocked state when powered on and to switch to the locked state when powered off.

3. The double-lock pin type according to claim 1, characterized in that, The mounting base (100) includes: a base (110), a first bracket (120), and a second bracket (130); The first bracket (120) and the second bracket (130) are respectively mounted on the base (110); The fixing rod (300) is slidably connected between the first bracket (120) and the second bracket (130).

4. The double-lock pin type according to claim 3, characterized in that, The mounting base (100) further includes a pin mounting bracket (140) which is installed between the first bracket (120) and the second bracket (130), and the locking device (400) is installed on the pin mounting bracket (140).

5. The double-lock pin type according to claim 3, characterized in that, The first bracket (120) and the second bracket (130) are respectively provided with a stop tooth (101) adapted to the ISOFIX component (200).

6. A child safety seat, characterized in that, The safety seat includes a pin-type double lock as described in any one of claims 1-5.

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