An ISOFIX connection structure

Abstract

This utility model relates to the field of ISOFIX connection technology and discloses an ISOFIX connection structure, including a sliding sleeve. The sliding sleeve contains a guide sleeve and an end cap. Both the guide sleeve and the end cap contain a housing. The housing contains an unlocking pin and a connecting block. The sliding sleeve and the guide sleeve each contain a rivet. A locking hook is rotatably connected to the outer wall of the leftmost rivet. A tension spring is fixedly connected to the outer wall of the locking hook. Limiting pins are provided inside the housing and the connecting block. A stop block is rotatably connected to the outer wall of the limiting pin. In this utility model, the cooperation between the housing, locking hook, rivet, connecting block, tension spring, limiting pin, stop block, compression spring, and limiting components limits or releases an object at the opening of the housing. Furthermore, the cooperation of a microswitch spring and other electronic components indicates the unlocked and locked states of the structure.

Description

Technical Field

[0001] This utility model relates to the field of ISOFIX connection technology, and in particular to an ISOFIX connection structure. Background Technology

[0002] ISOFIX is an internationally standardized car seat installation system that directly secures the child safety seat to the car seat frame, avoiding the need for traditional seatbelt installation. The system primarily consists of two metal connection points (ISOFIX interfaces) and corresponding connecting devices (such as pins and buckles). This design ensures a secure and safe installation of the child safety seat while reducing installation risks caused by improper operation, providing enhanced protection.

[0003] Traditional ISOFIX connection structures typically rely on physical latches or mechanical devices to secure seats. However, in actual use, traditional fixing devices may have problems such as unclear locking status or inconvenient operation, which reduces the safety of installation and thus affects the use of the connection structure. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides an ISOFIX connection structure, which aims to improve the problems that traditional fixing devices may have unclear locking status or inconvenient operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An ISOFIX connection structure includes a sliding sleeve, inside which are a guide sleeve and an end cap. Both the guide sleeve and the end cap have an outer shell. Inside the outer shell is an unlocking pin. Inside the outer shell is a connecting block. Inside both the sliding sleeve and the guide sleeve are rivets. The outer wall of the leftmost rivet is rotatably connected to a locking hook. The outer wall of the locking hook is fixedly connected to a tension spring. The outer wall of the tension spring is fixedly connected to the inside of the connecting block. Both the outer shell and the connecting block have limit pins. The outer wall of the limit pin is rotatably connected to a stop block. The lower surface of the stop block is fixedly connected to a compression spring. The outer wall of the compression spring is fixedly connected to the inside of the connecting block. A linear knurled shaft is fixedly connected to the inside of the connecting block. The lower surface of the locking hook has a microswitch spring. The outer shell has a limit assembly.

[0007] Preferably, the limiting component includes a limiting locking plate, the outer wall of which is disposed inside the housing, and a ratchet spring is fixedly connected inside the limiting locking plate, the outer wall of which is fixedly connected inside the housing.

[0008] Preferably, the upper outer wall of the limiting locking piece is disposed inside the sliding sleeve, the inner side of the limiting locking piece is rotatably connected to the outer wall of the right rivet, and the outer wall of the rightmost rivet is disposed below the limiting locking piece.

[0009] Preferably, the outer wall of the locking hook is located inside the outer casing, and four rivets are provided.

[0010] Preferably, the outer wall of the stop block is disposed inside the connecting block, and the upper outer wall of the stop block is disposed inside the sliding sleeve.

[0011] Preferably, the linear knurled shaft is located inside the housing, and the outer wall of the unlocking pin is slidably connected to the inside of the connecting block.

[0012] Preferably, the outer wall of the micro switch spring is disposed inside the housing and the connecting block, and the outer wall of the connecting block is disposed on the outer wall of the locking hook.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the object at the opening of the outer shell is limited or released through the cooperation between the outer shell, locking hook, rivet, connecting block, tension spring, limiting pin, stop block, compression spring and limiting component. Furthermore, through the cooperation of micro switch spring and other electronic components, the unlocked and locked states of the structure are indicated, which improves the safety of installation and facilitates operation, allowing the sliding sleeve to be freely adjusted. Attached Figure Description

[0015] Figure 1 This is a perspective view of an ISOFIX connection structure proposed in this utility model;

[0016] Figure 2 This is a partial structural diagram of the connecting block of the ISOFIX connection structure proposed in this utility model;

[0017] Figure 3 This is a partial structural diagram of the locking hook of the ISOFIX connection structure proposed in this utility model;

[0018] Figure 4 This is a partial structural diagram of the stop block of the ISOFIX connection structure proposed in this utility model;

[0019] Figure 5 This is a partial structural diagram of the limiting lock plate of the ISOFIX connection structure proposed in this utility model.

[0020] Legend:

[0021] 1. Sliding sleeve; 2. Housing; 3. Locking hook; 4. Guide sleeve; 5. Rivet; 6. Connecting block; 7. Tension spring; 8. Limiting pin; 9. Stop block; 10. Compression spring; 11. Linear knurled shaft; 12. End cap; 13. Ratchet spring; 14. Limiting locking plate; 15. Unlocking pin; 16. Micro switch spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 and Figure 2 An embodiment of this utility model provides an ISOFIX connection structure, including a sliding sleeve 1, a guide sleeve 4 and an end cap 12 inside the sliding sleeve 1, a housing 2 inside both the guide sleeve 4 and the end cap 12, an unlocking pin 15 inside the housing 2, a connecting block 6 inside the housing 2, rivets 5 inside both the sliding sleeve 1 and the guide sleeve 4, a locking hook 3 rotatably connected to the outer wall of the leftmost rivet 5, a tension spring 7 fixedly connected to the outer wall of the locking hook 3, the outer wall of the tension spring 7 fixedly connected to the inside of the connecting block 6, a limit pin 8 inside both the housing 2 and the connecting block 6, a stop block 9 rotatably connected to the outer wall of the limit pin 8, a compression spring 10 fixedly connected to the lower surface of the stop block 9, the outer wall of the compression spring 10 fixedly connected to the inside of the connecting block 6, a linear knurled shaft 11 fixedly connected to the inside of the connecting block 6, a micro switch spring 16 on the lower surface of the locking hook 3, and a limit assembly inside the housing 2.

[0024] Specifically, the right side of the microswitch spring 16 is connected to a display or other device in the prior art to show the ISOFIX status. Multiple grooves are formed inside the sliding sleeve 1, and the cooperation between the stop block 9 and the limiting component facilitates the limiting or release of the entire housing 2. The housing 2 is a split type, divided into two parts, and is fixed by multiple rivets 5. A groove on the left side of the housing 2 cooperates with a groove on the locking hook 3. As the locking hook 3 rotates, it locks or releases any object entering the groove of the housing 2. Then, through the cooperation between the micro switch spring 16 and other electronic components, the locked or unlocked state is indicated. The sliding sleeve 1 and guide sleeve 4 are fixed by rivets 5, while the entire shell 2 and end cap 12 are fixed. The sliding sleeve 1 and guide sleeve 4 are used to cooperate with the stop block 9 and the limiting component to facilitate the movement of the sliding sleeve 1. The rotation of the stop block 9 is limited by the limiting pin 8. The elastic force of the compression spring 10 is used to push against the stop block 9, so that the upper outer wall of the stop block 9 extends out of the connecting block 6 and the shell 2, thereby locking it inside the sliding sleeve 1 and limiting the movement of the sliding sleeve 1.

[0025] Reference Figure 2 and Figure 3 The limiting assembly includes a limiting locking plate 14, the outer wall of which is located inside the housing 2. A ratchet spring 13 is fixedly connected inside the limiting locking plate 14, and the outer wall of the ratchet spring 13 is fixedly connected inside the housing 2. The upper outer wall of the limiting locking plate 14 is located inside the sliding sleeve 1. The inner wall of the limiting locking plate 14 is rotatably connected to the outer wall of the right rivet 5, and the outer wall of the rightmost rivet 5 is located below the limiting locking plate 14.

[0026] Specifically, a rivet 5 is provided inside the limiting locking plate 14. The rotation of the limiting locking plate 14 is limited by the fixed rivet 5. A bushing is provided inside the outer shell 2 and is located on the left side of the limiting locking plate 14. The rightmost rivet 5 is located on the lower side of the limiting locking plate 14, thereby limiting the rotation range of the limiting locking plate 14. The tension of the ratchet spring 13 is used to make the lower side of the limiting locking plate 14 contact the rightmost rivet 5. The outer wall of the limiting locking plate 14 extends out of the connecting block 6 and the inner shell 2, thereby limiting the sliding sleeve 1.

[0027] Reference Figure 1 , Figure 4 and Figure 5 The outer wall of the locking hook 3 is located inside the outer shell 2, and four rivets 5 are provided; the outer wall of the stop block 9 is located inside the connecting block 6, and the upper outer wall of the stop block 9 is located inside the sliding sleeve 1; the linear knurled shaft 11 is located inside the outer shell 2, and the outer wall of the unlocking pin 15 is slidably connected to the inside of the connecting block 6; the outer wall of the micro switch spring 16 is located inside the outer shell 2 and the connecting block 6, and the outer wall of the connecting block 6 is located on the outer wall of the locking hook 3;

[0028] Specifically, the movement range of the locking hook 3 is restricted by the interior of the outer shell 2, and the movement range of the stop block 9 is also restricted. The upper side of the stop block 9 is provided with a protrusion for extending out of the interior of the connecting block 6 and the outer shell 2 to limit the movement of the sliding sleeve 1. The interior of the outer shell 2 is provided with a groove. Although the straight knurled shaft 11 does not directly contact the groove of the outer shell 2, the two sides of the groove of the outer shell 2 limit the movement range of the straight knurled shaft 11. The left outer wall of the connecting block 6 is provided at the tail end of the locking hook 3. As the connecting block 6 moves, the rotation of the locking hook 3 is limited or released.

[0029] Working principle: When using this structure, the initial state is unlocked. The microswitch spring 16 is connected to the electronic components. The locking mechanism pushes the locking hook 3, causing it to rotate under the limit of the rivet 5, i.e., locking downwards. The locking hook 3, via the tension spring 7, drives the connecting block 6 to move to the left inside the housing 2, thus abutting the locking hook 3. The tail of the locking hook 3 disengages from the microswitch spring 16, disconnecting the signal and indicating ISOFIX locking. By pushing the ISOFIX to slide inside the sliding sleeve 1, the connecting block 6 is pulled to the right, and the tension spring 7 drives the locking hook 3, causing it to rotate upwards and unlock. After unlocking, the connecting block 6 is pulled by the tension spring 7, abutting the locking hook 3, causing the tail of the locking hook 3 to trigger the microswitch spring 16, connecting the signal and indicating ISOFIX locking. When ISOFIX is opened, the upward rotation of the compression spring 10 causes its upper side to enter the interior of the sliding sleeve 1, thereby limiting the outer shell 2 and the connecting block 6. The connecting block 6 is pulled further, causing it to abut against the stop block 9 via the unlocking pin 15, causing the stop block 9 to rotate downward until the upper outer wall of the outer shell 2 is completely flush with the outer surface of the outer shell 2. At the same time, the right side of the connecting block 6 abuts against the limiting lock plate 14, causing the limiting lock plate 14 to rotate under the limitation of the rivet 5, causing the ratchet spring 13 to deform until the upper outer wall of the limiting lock plate 14 is flush with the surface of the outer shell 2, thereby achieving complete unlocking. The sliding sleeve 1 has multiple grooves inside, which, in cooperation with the stop block 9 and the limiting lock plate 14, allow ISOFIX to freely adjust its position inside the sliding sleeve 1.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ISOFIX connection structure comprising a sliding sleeve (1), characterized in that: The sliding sleeve (1) is internally provided with a guide sleeve (4) and an end cap (12). Both the guide sleeve (4) and the end cap (12) are internally provided with a housing (2). The housing (2) is internally provided with an unlocking pin (15) and a connecting block (6). Both the sliding sleeve (1) and the guide sleeve (4) are internally provided with rivets (5). The outer wall of the leftmost rivet (5) is rotatably connected to a locking hook (3). The outer wall of the locking hook (3) is fixedly connected to a tension spring (7). The outer wall of the tension spring (7) is fixedly connected to... Inside the connecting block (6), both the outer shell (2) and the connecting block (6) are provided with limit pins (8). The outer wall of the limit pin (8) is rotatably connected to a stop block (9). The lower surface of the stop block (9) is fixedly connected to a compression spring (10). The outer wall of the compression spring (10) is fixedly connected to the inside of the connecting block (6). The inside of the connecting block (6) is fixedly connected to a linear knurled shaft (11). The lower surface of the locking hook (3) is provided with a micro switch spring (16). The inside of the outer shell (2) is provided with a limit assembly.

2. The ISOFIX connection structure according to claim 1, characterized in that: The limiting component includes a limiting locking piece (14), the outer wall of which is disposed inside the outer shell (2), and a ratchet spring (13) is fixedly connected inside the limiting locking piece (14), the outer wall of which is fixedly connected inside the outer shell (2).

3. An ISOFIX connection structure according to claim 2, characterized in that: The upper outer wall of the limiting locking piece (14) is located inside the sliding sleeve (1), and the inner side of the limiting locking piece (14) is rotatably connected to the outer wall of the right rivet (5). The outer wall of the rightmost rivet (5) is located below the limiting locking piece (14).

4. The ISOFIX connection structure according to claim 1, characterized in that: The outer wall of the locking hook (3) is set inside the outer shell (2), and four rivets (5) are provided.

5. The ISOFIX connection structure according to claim 1, characterized in that: The outer wall of the stop block (9) is located inside the connecting block (6), and the upper outer wall of the stop block (9) is located inside the sliding sleeve (1).

6. The ISOFIX connection structure according to claim 1, characterized in that: The linear knurled shaft (11) is located inside the housing (2), and the outer wall of the unlocking pin (15) is slidably connected to the inside of the connecting block (6).

7. The ISOFIX connection structure according to claim 1, characterized in that: The outer wall of the micro switch spring (16) is disposed inside the outer shell (2) and the connecting block (6), and the outer wall of the connecting block (6) is disposed on the outer wall of the locking hook (3).

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