Isofix lock detector and device

Abstract

The application discloses an ISOFIX locking detector and device; including a shell, a micro switch and a touch component; the micro switch is fixedly arranged in the shell, the micro switch controls the control circuit of the external indicator, and then the ISOFIX locking state is judged through the external indicator; the touch component is movably arranged in the shell and is triggered with the micro switch, the touch component comprises a driving part and an indicating part, the driving part drives the touch component to move to trigger the micro switch through the external driving; the indicating part is used for judging the ISOFIX locking state based on the position of the indicating part. The device comprises the ISOFIX locking detector. The beneficial effects of the application are as follows: the micro switch controls the external indicator to judge the ISOFIX locking state, and the indicating part of the touch component judges the ISOFIX locking state based on the position of the indicating part, both of which can judge the ISOFIX locking state, the reliability and effectiveness of the locking state judgment are greatly enhanced, and the safety performance is improved.

Description

Technical Field

[0001] This application relates to the field of child safety seats, and in particular to an ISOFIX locking detector and device. Background Technology

[0002] In child passenger scenarios, car seats, as core protective equipment, directly determine the effectiveness of child protection through the reliability and stability of their connection to the vehicle seat. The detection and locking mechanism for this connection is crucial to the effectiveness of protection; an unstable connection that goes undetected significantly reduces child safety. Traditional detection and locking devices mostly rely on a single indicator light for visual indication, using a specific color to indicate whether the ISOFIX interface is successfully locked. However, in actual use, when the vehicle interior is dimly lit, during nighttime operation, or when obstructed by foreign objects, caregivers find it difficult to quickly and accurately identify the indicator light's status. This design flaw not only means that the potential for an unlocked connection may go undetected but also increases the risk of misjudgment during emergency installation or adjustments, thus weakening the core protective function that car seats should provide. To address this limitation, the industry urgently needs to develop a more intuitive and reliable status confirmation solution. Based on the above issues, a new solution is urgently needed. Utility Model Content

[0003] One object of this application is to provide an ISOFIX lock detector that can solve at least one of the defects in the above-mentioned background art.

[0004] Another objective of this application is to provide an ISOFIX lock detection device that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, this application provides an ISOFIX lock detector, including a housing, a micro switch, and a trigger assembly. The micro switch is fixedly disposed inside the housing and controls the control circuit of an external indicator, thereby determining the ISOFIX lock state through the external indicator. The trigger assembly is movably disposed in the housing and engages with the micro switch for triggering. The trigger assembly includes a driving part and an indicating part. The driving part drives the trigger assembly to move through an external drive to trigger the micro switch. The indicating part determines the ISOFIX lock state based on its own position.

[0006] Preferably, the micro switch and the middle part of the touch component are arranged side by side along the direction of movement perpendicular to the touch component, and the middle part of the touch component extends along the direction of movement and is provided with a touch part that cooperates with the micro switch for triggering.

[0007] Preferably, the housing is provided with a guide seat at a corresponding position in the middle of the trigger component, and the trigger component is adapted to slide in cooperation with the guide seat along the direction of movement.

[0008] Preferably, the trigger component is elastically connected to the housing via a self-resetting element.

[0009] Preferably, the self-resetting component is a mechanical spring.

[0010] Preferably, the middle part of the touch component is a connecting part, and the two ends of the connecting part along the movement direction are provided with the driving part and the indicating part. The cross-sectional dimension of the connecting part is larger than that of the driving part. The touch component is limited in the movement direction by cooperating with the outer shell through the connecting part.

[0011] Preferably, the length of the actuating component along the direction of movement is greater than the length of the outer casing.

[0012] Preferably, the distance by which the indicator extends out of the housing is 10%-30% of the length of the housing.

[0013] Preferably, the external indicator controlled by the micro switch is an indicator light and / or an audible prompter.

[0014] An ISOFIX lock detection device includes an ISOFIX lock detector and an ISOFIX lock mechanism; the ISOFIX lock mechanism is used to lock with the ISOFIX interface of a car seat, thereby driving the actuation component of the ISOFIX lock detector to move.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: In the technical solution of this application, an external indicator is controlled by a micro switch to determine the ISOFIX lock status, and the indicator of the trigger component is used to determine the ISOFIX lock status based on its own position. Both can determine the ISOFIX lock status, which greatly enhances the reliability and effectiveness of the lock status determination and improves the safety performance. Furthermore, in the case of poor ambient light, the determination by the indicator can avoid the error in determining the ISOFIX lock status due to the external indicator light not being visible. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0018] In the figure: 1. Housing 110, guide seat 110, micro switch 2, touch component 3, connection part 310, drive part 320, indicator part 330, touch part 340, self-resetting part 350, housing 4, transmission component 5, ISOFIX locking detector 6, ISOFIX locking mechanism 7. Detailed Implementation

[0019] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and 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, and should not be construed as limiting the specific protection scope of this application.

[0021] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0023] One aspect of this application provides an ISOFIX lock detector 6, and a preferred embodiment of this application is as follows: Figure 1 and Figure 2 As shown, the device includes a housing 1, a micro switch 2, and a trigger assembly 3. The micro switch 2 is fixedly disposed inside the housing 1 and controls the control circuit of an external indicator, thereby determining the ISOFIX locking state through the external indicator. The trigger assembly 3 is movably disposed in the housing 1 and engages with the micro switch 2 for triggering. The trigger assembly 3 includes a drive unit 320 and an indicator unit 330. The drive unit 320 drives the trigger assembly 3 to move through an external drive to trigger the micro switch 2. The indicator unit 330 determines the ISOFIX locking state based on its own position.

[0024] It should be understood that the micro switch 2 is located in the control circuit of the external indicator. Through the cooperation of the trigger component 3 and the micro switch 2, the micro switch 2 can be opened or closed, thereby making the control circuit of the external indicator open or closed, so as to determine whether the ISOFIX is locked by the external indicator.

[0025] It is understandable that when the environment is poor, such as when the lighting conditions are poor, if an indicator light is used as an external indicator, it is impossible to clearly determine whether the ISOFIX is locked, which will cause great safety hazards. Therefore, this embodiment adds an indicator 330, and the position of the indicator 330 adds a mechanical way to determine the locking status of the ISOFIX.

[0026] It should also be known that the driving part 320 of the trigger component 3 drives the trigger component 3 to move through an external drive, and the trigger component 3 cooperates with the micro switch 2 to press and release. Furthermore, an indicator part 330 is provided on the trigger component 3. The indicator part 330 can extend or retract from the housing 1. The position of the indicator part 330 relative to the housing 1 determines whether the ISOFIX is in the locked state.

[0027] It is also understood that the actuating component 3 can press the micro switch 2 when locked, or it can release the press of the micro switch 2 when locked. Different control circuits can complete the indication function of the external indicator under different conditions. Similarly, the indicator part 330 can be retracted into the housing 1 as a locking indication, or it can be extended out of the housing 1 by a certain distance as a locking indication. In this embodiment, it is preferred to use the release of the micro switch 2 and the extension of the indicator part 330 out of the housing 1 by a certain distance as a locking indication.

[0028] Specifically, the external indicator controlled by the micro switch 2 is an indicator light or an audible prompt, or both.

[0029] It should be understood that external indicators should clearly show whether the ISOFIX is locked. If an indicator light is used, it should be off when the ISOFIX is unlocked and illuminated when locked, indicating that the ISOFIX is locked. If an audible indicator is used, it should be silent when the ISOFIX is unlocked and emit a locking sound when locked. Both methods can be used simultaneously to enhance the effectiveness of the locking indicator, providing double protection and increased safety.

[0030] The structure of the actuating component 3 determines the effectiveness of the indicating function of the micro switch 2. A preferred embodiment of this application is as follows: Figure 2 As shown, along the direction of movement perpendicular to the trigger component 3, the micro switch 2 and the trigger component 3 are arranged side by side in the middle, and the trigger component 3 has an actuating part 340 that cooperates with the micro switch 2 in the middle extending along the direction of movement perpendicular to the direction of movement.

[0031] It should be understood that the micro switch 2 and the trigger assembly 3 are arranged side by side in the middle. The trigger part 340 provided on the middle of the trigger assembly 3 triggers the micro switch 2. The trigger part 340 is a structure that extends from the middle of the trigger assembly 3 perpendicular to the direction of movement and is used to press the micro switch 2. When the drive unit 320 is driven, the trigger part 340 will gradually release the pressure on the micro switch 2, thereby triggering the external indicator to perform ISOFIX locking judgment.

[0032] It is understandable that when the micro switch 2 is released, the control circuit that triggers the external indicator can be implemented using an inductor-capacitor assembly or a partially short-circuit structure.

[0033] Regarding the movement direction control of the indicator 330 and the touch part 340, to ensure that the movement of the indicator 330 and the touch part 340 does not deviate, a preferred embodiment of this application is as follows: Figure 2 As shown, the housing 1 has a guide seat 110 at the corresponding position in the middle of the actuating component 3, and the actuating component 3 is adapted to slide and cooperate with the guide seat 110 in the direction of movement.

[0034] It should be understood that the guide seat 110 is the key to achieving precise and reliable triggering of the actuating part 340 and the micro switch 2. By forming a tight fit between the guide seat 110 and the middle part of the actuating component 3, the movement of the actuating component 3 in the direction perpendicular to the direction of movement is effectively restricted, ensuring that the actuating component 3 can only move in a straight line in its direction of movement. The setting of the guide seat 110 not only eliminates the triggering deviation between the actuating part 340 and the micro switch 2 caused by assembly gaps or errors, but also improves the durability of long-term use, and will not cause the movement of the actuating component 3 to deviate due to long-term use.

[0035] The drive unit 320 is driven by an external force during ISOFIX locking and can return to its original position through its own structure during ISOFIX release. This is a preferred embodiment of the present application, such as... Figure 2 As shown, the trigger component 3 is elastically connected to the housing 1 via the self-resetting component 350.

[0036] It should be understood that, since the driving part 320 in this embodiment is subjected to external force, such as being pressed by an external component, during the locking process, and is not fixedly connected to the external component, it needs to rely on its own structure to return to its original position during the unlocking process. Therefore, a self-resetting member 350 is provided on the touch component 3 to help the touch component 3 return to its original position. In this embodiment, one end of the self-resetting member 350 is provided on the touch component 3, and the other end of the self-resetting member 350 is provided on the outer shell 1. In the initial state, the self-resetting member 350 remains in its original position, and the indicator part 330 is completely retracted into the outer shell 1. During the locking process, the indicator part 330 extends out of the outer shell 1, and the self-resetting member 350 undergoes elastic deformation. During the unlocking process, the external force of the driving part 320 is released, the elastic potential energy of the self-resetting member 350 is released, pushing the touch component 3 to move, and the indicator part 330 retracts into the outer shell 1 again, achieving the self-resetting effect.

[0037] Understandably, the self-resetting component 350 should meet sufficient durability and elasticity requirements, such as... Figure 2 As shown, in this embodiment, the self-resetting component 350 preferably adopts a mechanical spring; the mechanical spring is set between the connecting part 310 and the outer shell 1. During the locking process, the mechanical spring accumulates elastic potential energy and is compressed; during the unlocking process, the mechanical spring releases elastic potential energy to push the trigger component 3 back to its original position.

[0038] It should also be noted that without the self-resetting element 350, the ISOFIX locking mechanism 7 would need to drive the trigger component 3 during reset, causing resistance and reducing the power required for the switching process. This would result in a sticky or unsmooth operation, making it difficult to determine whether the device has been correctly locked. Therefore, this embodiment uses the self-resetting element 350 to reduce resistance to the ISOFIX locking mechanism 7, allowing for smoother locking and unlocking operations.

[0039] It is also understandable that relying on the ISOFIX locking mechanism 7 for front-end actuation would exacerbate the wear of related contact components, thereby reducing service life and long-term stability. During locking and unlocking operations, the elastic potential energy stored in the self-resetting component 350 is released and converted into the kinetic energy of the actuating component 3, enabling it to quickly and actively reset, thus increasing the smoothness of use.

[0040] The movement of the actuating component 3 should be limited. If the displacement is too large, the micro switch 2 may be squeezed too tightly and damaged. In a preferred embodiment of this application, such as... Figure 2As shown, the middle part of the trigger component 3 is the connecting part 310. The two ends of the connecting part 310 along the movement direction are provided with the driving part 320 and the indicating part 330. The cross-sectional dimension of the connecting part 310 is larger than that of the driving part 320. The trigger component 3 is limited in the movement direction by cooperating with the outer shell 1 through the connecting part 310.

[0041] It should be understood that the connecting part 310, the driving part 320 and the indicating part 330 are in a straight line. When the driving part 320 drives the trigger component 3 to move, the driving part 320 will gradually retract into the housing 1, and the indicating part 330 will gradually extend out of the housing 1. The relative position of the indicating part 330 with respect to the housing 1 is used to determine whether ISOFIX is locked.

[0042] It should also be noted that, due to the self-resetting element 350, when the lock is released, the actuating part 340 will tightly press against the micro switch 2. Therefore, by setting the cross-sectional dimension of the connecting part 310 to be larger than that of the driving part 320, the connecting part 310 cannot extend outward from the hole where the driving part 320 is located. In other words, the boundary of the outer shell 1 achieves a limiting effect on the connecting part 310, thereby limiting the entire actuating assembly 3. Limiting the movement direction can effectively protect the contact between the actuating part 340 and the micro switch 2 from being squeezed too tightly and damaged. Since the micro switch 2 is a relatively weak and delicate part, while the outer shell 1 and the connecting part 310 are high-strength parts, the limiting of the connecting part 310 and the outer shell 1 in the movement direction protects the contact between the actuating part 340 and the micro switch 2.

[0043] Understandably, limiting the movement via the connecting part 310 and the outer shell 1 eliminates the need for additional components. Instead, the limiting function is achieved by altering the local structural dimensions of the actuating component 3 itself. Mechanical interference occurs through the stepped position of the connecting part 310 and the inner wall of the outer shell 1, stopping the movement through contact. This keeps the trigger stroke of the microswitch 2 within a safe range, preventing permanent deformation and damage to the internal spring of the microswitch 2 due to excessive pressing, thus improving the reliability and lifespan of the microswitch 2. Furthermore, since no additional components are required, the structure is simplified, reducing production costs.

[0044] The length of the touch component 3 affects the effectiveness of the drive unit 320 and the indicator unit 330. A preferred embodiment of this application is as follows: Figure 2 As shown, the length of the trigger component 3 along the direction of movement is greater than the length of the outer casing 1.

[0045] It should be understood that the length of the actuating component 3 along the direction of movement determines whether the indicator 330 and the driving part 320 can reliably perform their functions throughout the entire movement. When the length of the actuating component 3 along the direction of movement is greater than the length of the housing 1, it ensures that in the initial state, the driving part 320 can extend sufficiently out of the housing 1, thereby enabling the driving part 320 to perform transmission with the external components. It also ensures that during the movement, the indicator 330 can extend sufficiently out of the housing 1, thus providing clear locking status feedback.

[0046] The distance by which the indicator part 330 extends beyond the outer casing 1 affects the clarity of the indication and the safety and reliability of the structure. A preferred embodiment of this application is as follows: Figure 2 As shown, the indicator 330 extends out of the housing 1 by a set distance of 10%-30% of the length of the housing 1.

[0047] It should be understood that if the setting distance of the indicator 330 is too small, the indicator 330 will not have enough exposed length, making it impossible to observe clearly or be accurately perceived by hand touch; if the setting distance of the indicator 330 is too large, the cantilever of the indicator 330 may be too long, which may easily cause swaying and collision damage, and may easily cause movement interference with other surrounding components. Therefore, in this embodiment, it is preferred that the setting distance of the indicator 330 extending out of the housing 1 is 10%-30% of the length of the housing 1. This ensures both the effectiveness of the ISOFIX locking judgment and its safety and reliability.

[0048] Another aspect of this application provides an ISOFIX lock detection device, one preferred embodiment of which is as follows: Figure 1 As shown, it includes an ISOFIX locking detector 6 and an ISOFIX locking mechanism 7; the ISOFIX locking mechanism 7 is used to lock with the ISOFIX interface of the car seat, thereby driving the actuation component 3 of the ISOFIX locking detector 6 to move.

[0049] It should be noted that the housing 1 of the ISOFIX locking detector 6 is detachably connected to the housing 4. The ISOFIX lock can be connected to or disconnected from the ISOFIX locking mechanism 7, allowing for quick connection when needed. The first end of the transmission component 5 is connected to the locking head. When the locking head locks with the ISOFIX interface of the car seat, it drives the transmission component 5 to move, which in turn moves the second end of the transmission component 5. The second end of the transmission component 5 cooperates with the actuating component 3, pushing the actuating component 3 to move. This actuating component 3 controls the opening and closing of the micro switch 2, thereby providing an indication of the ISOFIX locking status via an external indicator.

[0050] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An ISOFIX lock detector, characterized in that: The device includes a housing, a micro switch, and a trigger assembly. The micro switch is fixedly disposed inside the housing and controls the control circuit of an external indicator, thereby determining the ISOFIX lock status through the external indicator. The trigger assembly is movably disposed in the housing and engages with the micro switch for triggering. The trigger assembly includes a driving part and an indicating part. The driving part drives the trigger assembly to move through an external drive to trigger the micro switch. The indicating part determines the ISOFIX lock status based on its own position.

2. The ISOFIX lock detector as described in claim 1, characterized in that: Along the direction of movement perpendicular to the trigger component, the micro switch and the middle part of the trigger component are arranged side by side, and the middle part of the trigger component extends along the direction of movement perpendicular to the trigger component and is provided with a triggering part that cooperates with the micro switch.

3. The ISOFIX lock detector as described in claim 2, characterized in that: The housing is provided with a guide seat at a corresponding position in the middle of the trigger component, and the trigger component is adapted to slide in cooperation with the guide seat along the direction of movement.

4. The ISOFIX lock detector as described in claim 2 or 3, characterized in that: The trigger component is elastically connected to the housing via a self-resetting element.

5. The ISOFIX lock detector as described in claim 4, characterized in that: The self-resetting component uses a mechanical spring.

6. The ISOFIX lock detector as described in claim 4, characterized in that: The middle part of the trigger component is a connecting part, and the two ends of the connecting part along the direction of movement are provided with the driving part and the indicating part. The cross-sectional dimension of the connecting part is larger than that of the driving part. The trigger component is limited in the direction of movement by cooperating with the outer shell through the connecting part.

7. The ISOFIX lock detector as described in claim 4, characterized in that: The length of the actuating component along the direction of movement is greater than the length of the outer casing.

8. The ISOFIX lock detector as described in claim 7, characterized in that: The indicator extends out of the housing by a set distance that is 10%-30% of the length of the housing.

9. The ISOFIX lock detector as claimed in claim 1, characterized in that: The external indicator controlled by the microswitch is an indicator light and / or an audible prompt.

10. An ISOFIX locking detection device, characterized in that: Includes the ISOFIX locking detector and ISOFIX locking mechanism as described in any one of claims 1-9; the ISOFIX locking mechanism is used to lock with the ISOFIX interface of a car seat, thereby driving the actuation component of the ISOFIX locking detector to move.

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