ISOFIX switch device

Abstract

The application discloses an ISOFIX switch device; comprising a shell and a pressing assembly; the pressing assembly is arranged at one end of the shell; the shell is fixedly connected to a fixed end of an ISOFIX connector through a first connecting piece, and the pressing assembly is fixedly connected to a transmission end of the ISOFIX connector through a second connecting piece; the ISOFIX connector is adapted to lock or unlock an ISOFIX interface through movement of the pressing assembly relative to the shell; the first connecting piece and the second connecting piece are arranged on the inner side of the shell close to the end of the shell. The application has the beneficial effects that: the ISOFIX is locked and unlocked through relative movement of the shell and the pressing assembly; the locking state of the ISOFIX is strengthened through limiting cooperation and release of limiting cooperation of the pressing assembly and the opening and closing assembly, so that the safety hidden danger caused by accidental touch is avoided, and obvious locking indication is achieved; the connecting pieces are designed in a hidden mode, so that the accidental touch and damage risk are reduced, and the aesthetic appearance is improved.

Description

Technical Field

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

[0002] In scenarios involving children traveling in cars, child safety seats are crucial protective equipment, and the reliability and stability of their connection to the vehicle seat directly determine the level of safety for children during travel. Among these factors, the effectiveness of the ISOFIX connection mechanism in locking and preventing accidental loosening is a core factor affecting overall protective performance. If there is a potential risk of slippage in the connection and there is a lack of effective monitoring, it will significantly increase the safety risks for children traveling in cars.

[0003] Currently, most common locking devices employ mechanical switches or latches, relying on manual judgment to ensure proper locking. However, in actual use, these devices are prone to accidental unlocking or slippage due to wear and tear from prolonged use, accidental activation, or structural vibration. Furthermore, without clear warnings, caregivers cannot easily detect changes in the connection status in real time. This design flaw not only risks the child safety seat gradually loosening during driving but also poses a serious risk of connection failure during emergency braking or in complex road conditions, significantly weakening the protective function of the child safety seat. Therefore, a new solution is urgently needed. Utility Model Content

[0004] The purpose of this application is to provide an ISOFIX switching device that can solve at least one of the defects in the above-mentioned background art.

[0005] To achieve at least one of the above objectives, this application provides an ISOFIX switch device, including a housing and a pressing assembly; the pressing assembly is disposed at one end of the housing; the housing is fixedly connected to the fixed end of an ISOFIX connector via a first connector, and the pressing assembly is fixedly connected to the driving end of an ISOFIX connector via a second connector; the ISOFIX connector is adapted to lock or unlock the ISOFIX interface by the movement of the pressing assembly relative to the housing; the ends of the first connector and the second connector near the housing are both disposed inside the housing.

[0006] Preferably, the outer shell is provided with a first guide sleeve, and the pressing component is provided with a second guide sleeve; the first guide sleeve is sleeved on the first connector, and the second guide sleeve is sleeved on the second connector; both the first connector and the second connector are fixed with fasteners at their ends near the outer shell.

[0007] Preferably, the ISOFIX connector is provided with a connecting sleeve, and the ends of the first connector and the second connector away from the housing are interference-fitted with the connecting sleeve.

[0008] Preferably, both the first guide sleeve and the second guide sleeve have a groove at their ends near the outer shell, and the fastener is disposed within the groove.

[0009] Preferably, the outer casing is provided with a through groove along the movement direction of the pressing component, and the pressing component is disposed at the first end of the through groove; the inner side of the outer casing is provided with a sliding groove along the movement direction of the pressing component, and the second connecting member is correspondingly disposed in the sliding groove.

[0010] Preferably, an opening and closing assembly is provided at the second end of the through groove. The opening and closing assembly includes a base and a rotating shaft. The base is rotatably mounted at the second end of the through groove via the rotating shaft. A limiting part is provided at the end of the base near the pressing assembly. Under the drive of an external force, the limiting part rotates around the rotating shaft to limit or release the pressing assembly.

[0011] Preferably, the pressing component is provided with a limiting plate that is limited to the limiting part at the limiting engagement position, and the seat is provided with an insertion port for inserting the limiting plate at the position where the limiting engagement between the seat and the limiting plate is released.

[0012] Preferably, the two extreme positions of the seat body rotating around the rotating shaft correspond to the limiting engagement position and the releasing engagement position of the limiting plate and the limiting part, respectively.

[0013] Preferably, when the limiting part moves from the limiting engagement position to the releasing limiting engagement position, the rotation angle of the seat body around the rotating shaft is in the range of 10°-20°.

[0014] Preferably, a driving part is provided on the side of the seat away from the limiting part, and the driving part is adapted to drive the seat to rotate around the rotating shaft under the drive of external force.

[0015] Preferably, the rotating shaft is elastically mounted to the housing by a torsion spring.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: In the technical solution of this application, ISOFIX is locked and unlocked by the relative movement of the housing and the pressing component; the locking state of ISOFIX is strengthened by the limiting and releasing cooperation of the pressing component and the opening and closing component, ensuring that it will not cause safety hazards due to accidental contact, and there is a clear locking indicator; the hidden design of the connector reduces the risk of accidental contact and damage, and increases the aesthetics. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the outer shell structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the pressing component of this utility model.

[0020] Figure 4 This is a schematic diagram of the inner structure of the outer shell of this utility model.

[0021] Figure 5 This is a schematic diagram of the cooperation between the limiting part and the limiting plate of this utility model.

[0022] Figure 6 This is a schematic diagram of the limiting state of this utility model.

[0023] Figure 7 This is a schematic diagram of the released limit state of this utility model.

[0024] In the figure: 1. Outer shell, 110. First guide sleeve, 120. First connector, 130. Through groove, 140. Pressing assembly, 2. Second guide sleeve, 210. Second connector, 220. Limiting plate, 230. Connecting sleeve, 240. Opening and closing assembly, 3. Seat, 310. Limiting part, 311. Socket, 312. Drive part, 313. Rotating shaft, 320. Fastener, 4. ISOFIX connector, 5. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] A preferred embodiment of this application, such as Figure 1 As shown, an ISOFIX switch device includes a housing 1 and a pressing component 2; the pressing component 2 is disposed at one end of the housing 1; the housing 1 is fixedly connected to the fixed end of the ISOFIX connector 5 via a first connector 120, and the pressing component 2 is fixedly connected to the driving end of the ISOFIX connector 5 via a second connector 220; the ISOFIX connector 5 is adapted to lock or unlock the ISOFIX interface by the movement of the pressing component 2 relative to the housing 1; the ends of the first connector 120 and the second connector 220 near the housing 1 are both disposed on the inner side of the housing 1.

[0030] It should be understood that the ISOFIX connector 5 locks and unlocks the ISOFIX interface on the vehicle seat by moving its drive end relative to its fixed end; the drive end and fixed end of the ISOFIX connector 5 are connected to the housing 1 and the pressing component 2 respectively through the first connector 120 and the second connector 220. The relative movement of the housing 1 and the pressing component 2 drives the drive end and fixed end of the ISOFIX connector 5 to move relative to each other, thereby locking or unlocking the ISOFIX interface.

[0031] It is understandable that the fixed end of the ISOFIX connector 5 and the housing 1 remain in a fixed position and move only through the pressing component 2. The user can operate the pressing component 2 by hand to make the pressing component 2 move relative to the housing 1, thereby locking or unlocking the ISOFIX connector 5.

[0032] It should also be understood that if the ends of the first connector 120 and the second connector 220 extend beyond the housing 1, the housing 1 cannot effectively protect the ends of the connectors. Accidental contact or impact could cause the first connector 120 and the second connector 220 to malfunction, making it impossible to lock or unlock the ISOFIX interface. Therefore, placing the ends of the first connector 120 and the second connector 220 near the housing 1 on the inner side of the housing 1, and protecting them from the outside, not only reduces safety hazards but also improves the overall aesthetics of the structure.

[0033] It is also understandable that the housing 1 and the pressing component 2 should be set parallel to the ISOFIX connector 5, and then the first connector 120 and the second connector 220 should be set perpendicular to the ISOFIX connector 5. This arrangement provides the best transmission effect, good structural stress, and is less prone to damage.

[0034] In order to ensure that the first connector 120 and the second connector 220 can fully exert their transmission function, a preferred embodiment of this application is as follows: Figure 2-4 As shown, the outer shell 1 is provided with a first guide sleeve 110, and the pressing component 2 is provided with a second guide sleeve 210; the first guide sleeve 110 is sleeved on the first connector 120, and the second guide sleeve 210 is sleeved on the second connector 220. The first connector 120 and the second connector 220 are both fixed with fasteners 4 at the ends near the outer shell 1.

[0035] It should be understood that the first guide sleeve 110 is integrally formed with the outer shell 1, and similarly, the second guide sleeve 210 is integrally formed with the pressing component 2. The first guide sleeve 110 is sleeved on the first connecting member 120, and the first connecting member 120 and the first guide sleeve 110 are tightly fixed at the end by fasteners 4; the second guide sleeve 210 is sleeved on the second connecting member 220, and the second connecting member 220 and the second guide sleeve 210 are tightly fixed at the end by fasteners 4.

[0036] It is understandable that if the connector is fixed only at the end by fastener 4 without the guide sleeve structure, the entire force is concentrated at the connection end, which is prone to stress concentration. In the event of accidental contact or collision, the connection is easily damaged, leading to overall failure. Therefore, adding the sleeve structure of the connecting sleeve can disperse the stress and make the connection between the first connector 120 and the outer shell 1, and the second connector 220 and the pressing component 2 safer and more reliable.

[0037] Specifically, the ISOFIX connector 5 is provided with a connecting sleeve 240, and the ends of the first connector 120 and the second connector 220 away from the housing 1 are interference-fitted with the connecting sleeve 240.

[0038] It should be understood that, for traditional connection structures, directly interlocking the first connector 120 and the second connector 220 with the mounting positions on the ISOFIX connector 5 results in narrow operating space, inconvenient installation, and insufficient stability; insufficient rigidity can easily cause misalignment. This embodiment adds a connecting sleeve 240 between the ISOFIX connector 5 and the first connector 120 and the second connector 220. The connecting sleeve 240 can be first installed on the ends of the first connector 120 and the second connector 220, and then quickly installed onto the ISOFIX connector 5, greatly reducing assembly difficulty. Furthermore, the connecting sleeve 240 further increases the force transmission area, improving the stability of the device during use.

[0039] The fixing method of fastener 4 also affects safety and reliability. A preferred embodiment of this application, such as... Figure 2-4 As shown, both the first guide sleeve 110 and the second guide sleeve 210 have grooves at their ends near the outer shell 1, and the fastener 4 is disposed in the groove.

[0040] It should be noted that the fastener 4 is located within the recessed portion, rather than protruding, which effectively prevents it from loosening due to external impact. The recessed design ensures that the fastener 4 is entirely within the recessed portion, providing additional protection, reducing the risk of accidental contact, and enhancing the stability of the connection, thus increasing reliability and stability.

[0041] The outer casing 1 and the pressing component 2 should achieve relative movement through a corresponding structure. A preferred embodiment of this application is as follows: Figure 4 As shown, the outer shell 1 is provided with a through groove 130 along the movement direction of the pressing component 2, and the pressing component 2 is disposed at the first end of the through groove 130; the inner side of the outer shell 1 is provided with a sliding groove 140 along the movement direction of the pressing component 2, and the second connecting member 220 is correspondingly disposed in the sliding groove 140.

[0042] It should be understood that the through groove 130 provided in the outer shell 1 is used to place the pressing component 2, and allows the pressing component 2 to move relative to the outer shell 1 in the through groove 130; during the movement of the pressing component 2 relative to the outer shell 1, the second connecting member 220 should also move relative to the outer shell 1. Therefore, a sliding groove 140 is provided on the inner side of the outer shell 1 along the movement direction of the pressing component 2, and the second connecting member 220 can move with the pressing component 2 in the sliding groove 140.

[0043] It is understandable that since the housing 1 is fixed to the fixed end of the ISOFIX connector 5 via the first connector 120, and the pressing component 2 is fixed to the transmission end of the ISOFIX connector 5 via the second connector 220, both the housing 1 and the pressing component 2 are firmly connected to the ISOFIX connector and do not need to be relatively fixed in the direction perpendicular to the movement of the pressing component 2. Therefore, the opening width of the sliding groove 140 can be unlimited. For the stability of the overall structure, the opening width of the sliding groove 140 can be slightly larger than the width of the second connector 220 and the second connecting sleeve.

[0044] A preferred embodiment of this application, such as Figure 1 , Figure 5-7 As shown, an opening and closing assembly 3 is provided at the second end of the through groove 130. The opening and closing assembly 3 includes a base 310 and a rotating shaft 320. The base 310 is rotatably mounted at the second end of the through groove 130 via the rotating shaft 320. A limiting part 311 is provided at the end of the base 310 near the pressing assembly 2. Under the drive of external force, the limiting part 311 rotates around the rotating shaft 320 to limit or release the pressing assembly 2.

[0045] It should be understood that the opening and closing component 3 is located at the second end of the through groove 130 corresponding to the pressing component 2, and cooperates with the pressing component 2 through the limiting part 311 to achieve the effect of limiting and releasing the limiting. The limiting part 311 rotates under the drive of external force and then limits or releases the pressing component 2. When the limiting part 311 rotates to different angles, it engages with the pressing component 2 in a limiting or releasing engagement.

[0046] It is understandable that rotating along the axis 320 causes less wear on the structure compared to linear motion. Furthermore, the trajectory of the limiting part 311 remains fixed during rotation, which can prevent limiting failure due to installation errors or deformation of other components, thereby enhancing the overall durability and reliability of the structure.

[0047] A preferred embodiment of this application, such as Figure 5-7 As shown, a limiting plate 230 is provided at the limiting engagement position of the pressing component 2 and the limiting part 311, which is limited to the limiting part 311. The seat 310 is provided at the position where the limiting plate 230 is released from the limiting engagement position, and an insertion port 312 for inserting the limiting plate 230 is provided.

[0048] It should be understood that when the limiting part 311 rotates to be flush with the limiting plate 230, the pressing component 2 cannot press and move into the interior of the outer shell 1, and the limiting part 311 has a limiting effect on the limiting plate 230. When the base 310 rotates so that the socket 312 is flush with the limiting plate 230, the pressing component 2 can press and move into the interior of the outer shell 1, and the limiting plate 230 passes through the socket 312 for insertion and engagement.

[0049] Understandably, when ISOFIX needs to be connected, the seat 310 is rotated so that the socket 312 is aligned with the limiting plate 230. The pressing component 2 is then pressed, causing the pressing component 2 to drive the transmission end of the ISOFIX connector 5 through the second connector 220, which in turn drives the connection port at the other end of the transmission end, making it engage with the ISOFIX connection port on the car seat. Then, the pressing component 2 is released, causing the limiting plate 230 to move out of the socket 312. The seat 310 is rotated again so that the limiting part 311 is aligned with the limiting plate 230. At this time, the pressing component 2 cannot press inward under the limiting engagement of the limiting plate 230 and the limiting part 311, thus preventing the ISOFIX from being unlocked. This provides a secure locking control, preventing accidental unlocking of the ISOFIX and potential safety hazards.

[0050] The position of the seat 310 rotating around the pivot 320 has a significant impact on the positional relationship between limiting and releasing the limit. A preferred embodiment of this application is as follows: Figure 5-7 As shown, the two extreme positions of the seat 310 rotating around the pivot 320 correspond to the limiting engagement position and the releasing engagement position of the limiting plate 230 and the limiting part 311, respectively.

[0051] It should be understood that if the limiting plate 230 and the limiting part 311 are not at the two extreme positions of the seat 310 rotating around the pivot 320, then alignment is required during the limiting and unlocking process. If the socket 312 is not aligned with the position of the limiting plate 230, the pressing component 2 cannot move, and the ISOFIX locking and unlocking process cannot be performed.

[0052] Understandably, the two extreme positions of the seat 310 rotating around the pivot 320 correspond to the limiting engagement position and the unlocking engagement position of the limiting plate 230 and the limiting part 311, respectively. This means that during operation, as long as the seat 310 is rotated in one direction to a position where it can no longer rotate, the extreme rotation position is reached, which is the limiting engagement position or the unlocking engagement position. This facilitates precise and rapid operation and greatly increases the efficiency of ISOFIX locking and unlocking.

[0053] When the limiting plate 230 and the limiting part 311 are flush, that is, when the seat 310 is in its initial state and the rotation angle is 0°, they are in the limiting engagement position. To release the limiting engagement position, the seat 310 needs to be rotated a certain amount so that the insertion port 312 aligns with the limiting plate 230. Regarding the setting of the angle for releasing the limiting engagement position, a preferred embodiment of this application is as follows: Figure 5-7 As shown, when the limiting part 311 moves from the limiting engagement position to the releasing limiting engagement position, the rotation angle range of the seat body 310 around the rotating shaft 320 is 10°-20°.

[0054] It should be understood that if the angle is set too small, under the vibration of an accidental collision, a slight rotation may occur, causing the device to detach and release the limit switch, posing a safety hazard. If the angle is set too large, it will significantly increase the difficulty of operation and reduce ease of use. Therefore, in this embodiment, the rotation angle range of the base 310 around the pivot 320 is preferably 10°-20°. This ensures the stability and reliability of the structure, reduces the possibility of accidental release of the limit switch, and also takes into account the convenience and efficiency of operation, achieving a balance between safety and convenience.

[0055] For the external drive method of the seat 310, convenience and efficiency are required. A preferred embodiment of this application is as follows: Figure 1 , Figure 5-7 As shown, a driving part 313 is provided on the side of the seat 310 away from the limiting part 311. The driving part 313 is adapted to drive the seat 310 to rotate around the rotating shaft 320 under the drive of external force.

[0056] It should be understood that when an external force is applied to the drive unit 313, the drive unit 313 drives the seat 310 to rotate around the pivot 320. The user can apply external force to the drive unit 313 with their hand. During operation, the user's thumb can be used to pry the drive unit 313 outward, causing the seat 310 to rotate around the pivot 320, aligning the socket 312 with the limiting plate 230. Then, the user's other fingers can be used to press the pressing component 2, causing the limiting plate 230 to insert into the socket 312. This causes the pressing component 2 to move relative to the outer shell 1, allowing the ISOFIX to lock. After the operation is completed, the pressing component 2 is fixed to the transmission end of the ISOFIX connector 5 via the second connector 220. Pulling the outer shell 1 restores the relative position of the outer shell 1 and the pressing component 2 to their original positions. Then, the user can apply external force to the drive unit 313, pushing it inward, causing the seat 310 to rotate around the pivot 320, aligning the limiting part 311 with the limiting plate 230, completing the limiting engagement, and preventing the ISOFIX connection from disengaging.

[0057] For the control of the limit fit, other structures can be used to strengthen and prevent accidental disengagement. A preferred embodiment of this application is as follows: Figure 2 As shown, the rotating shaft 320 is elastically mounted to the housing 1 via a torsion spring.

[0058] It should be understood that since prying the drive part 313 outward releases the limiting engagement state, while the drive part 313 remains in its initial position, that is, when it is pressed inward against the outer shell 1, it is in the limiting engagement state of the limiting part 311 and the limiting plate 230. Therefore, by increasing the elastic force, the limiting part 311 and the limiting plate 230 can automatically remain in the limiting engagement state without the action of external force; and the elastic force can make it less likely to unlock due to accidental contact, thus greatly enhancing the safety performance.

[0059] 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 switching device, characterized in that: It includes a housing and a pressing assembly; the pressing assembly is disposed at one end of the housing; the housing is fixedly connected to the fixed end of the ISOFIX connector via a first connector, and the pressing assembly is fixedly connected to the drive end of the ISOFIX connector via a second connector; The ISOFIX connector is adapted to lock or unlock the ISOFIX interface by movement of the pressing component relative to the housing; the ends of the first connector and the second connector near the housing are both located inside the housing.

2. The ISOFIX switching device as claimed in claim 1, characterized in that: The outer shell is provided with a first guide sleeve, and the pressing component is provided with a second guide sleeve; the first guide sleeve is sleeved on the first connector, and the second guide sleeve is sleeved on the second connector; both the first connector and the second connector are fixed with fasteners at their ends near the outer shell.

3. The ISOFIX switching device as described in claim 2, characterized in that: The ISOFIX connector is provided with a connecting sleeve, and the ends of the first connector and the second connector away from the housing are interference-fitted with the connecting sleeve.

4. The ISOFIX switching device as described in claim 2, characterized in that: Both the first guide sleeve and the second guide sleeve have a groove at their ends near the outer shell, and the fastener is disposed in the groove.

5. The ISOFIX switching device as described in any one of claims 1-4, characterized in that: The outer casing has a through groove along the movement direction of the pressing component, and the pressing component is disposed at the first end of the through groove; the inner side of the outer casing has a sliding groove along the movement direction of the pressing component, and the second connecting member is correspondingly disposed in the sliding groove.

6. The ISOFIX switching device as described in claim 5, characterized in that: An opening and closing assembly is provided at the second end of the through groove. The opening and closing assembly includes a base and a rotating shaft. The base is rotatably mounted at the second end of the through groove via the rotating shaft. A limiting part is provided at the end of the base near the pressing assembly. Under the drive of an external force, the limiting part rotates around the rotating shaft to limit or release the pressing assembly.

7. The ISOFIX switching device as claimed in claim 6, characterized in that: The pressing component is provided with a limiting plate at the limiting position of the limiting part, and the seat is provided with an insertion port for inserting the limiting plate at the position where the limiting position of the seat and the limiting plate are released.

8. The ISOFIX switching device as claimed in claim 7, characterized in that: The two extreme positions of the seat body rotating around the pivot correspond to the limiting engagement position and the releasing engagement position of the limiting plate and the limiting part, respectively.

9. The ISOFIX switching device as claimed in claim 6, characterized in that: A driving part is provided on the side of the seat away from the limiting part, and the driving part is adapted to drive the seat to rotate around the rotating shaft under the drive of external force.

10. The ISOFIX switching device as claimed in claim 9, characterized in that: The rotating shaft is elastically mounted to the housing via a torsion spring.

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