ISOFIX connection device with electronic detection function

Abstract

The utility model relates to children safety protection field discloses a kind of ISOFIX connecting device with electronic detection function, including shell and locking mechanism, the locking mechanism includes assembly shell, the assembly shell is set at the outside of shell, the inside sliding connection of assembly shell has first push plate and second push plate, the side of first push plate and second push plate is all fixedly connected with limit block, the side of assembly shell is equipped with two limit holes, the outside of limit block is slidingly connected in the inside of corresponding limit hole, the side of second push plate is fixedly connected with fixed column, the outside of fixed column is equipped with first spring. In the utility model, double protection is realized by mechanical structure clamping and electronic signal linkage, a stable locking state can be formed by component cooperation on mechanical level, and a locking signal can be fed back in real time on electronic level;When unlocking, mechanical structure reset can be triggered by mutual pushing operation, and electronic signal switching is simultaneously driven to unlock prompt.

Description

Technical Field

[0001] This utility model relates to the field of child safety protection, and in particular to an ISOFIX connection device with electronic detection function. Background Technology

[0002] In the field of child safety protection, child safety seats are the core equipment for protecting children's safety while traveling in vehicles, and the reliability of their connection to the car body directly determines the protective effect. With the continuous improvement of automotive safety standards, the ISOFIX connection system has gradually become the industry mainstream. This system achieves a rigid connection between the seat and the car through a standardized interface, replacing the traditional seat belt fixing method, effectively reducing installation errors and improving stability during collisions. Currently, ISOFIX connection devices are widely used in various passenger vehicles, needing to adapt to the different seat installation positions and spatial dimensions of different models, while also meeting the needs of frequent installation, removal, and gear adjustments. They must ensure high strength load-bearing capacity in the locked state while also possessing convenient operation to suit parents' daily usage scenarios. Therefore, extremely high requirements are placed on the structural stability, functional reliability, and ease of operation of the device. Existing ISOFIX connection devices include a locking mechanism and an electronic signal module. The locking system is composed of components such as a locking hook and a spring. When the device is inserted into the ISOFIX interface of a car, the spring force drives the locking hook to rotate and engage, forming a mechanical lock. In addition, in order to adapt to the space of different car models, the device is usually designed with a sliding inner shell structure. After unlocking the mechanical limit, the inner shell can be pushed to adjust its position. In practical applications, existing ISOFIX connection devices suffer from several problems. Firstly, operational reliability is insufficient. Some devices rely on a single spring for the locking mechanism, and over time, the spring force diminishes, leading to loose locking hooks or requiring significant force to unlock. This can cause improper installation or removal during emergency setups, posing a safety hazard. Secondly, there is a high risk of wiring harness jamming. Existing devices often place the electronic interface close to the sliding components. When adjusting the inner housing position, the wiring harness can easily rub against and become entangled with the sliding structure. Especially after frequent adjustments, wear on the wiring harness insulation can cause electronic signal failure, resulting in inaccurate feedback on the locking status and making it difficult for users to determine the connection's reliability. Thirdly, the flexibility of position adjustment is poor. Some devices experience high sliding resistance in the inner housing after unlocking, or misalignment and jamming during adjustment, making it difficult to smoothly adapt to the installation space of different vehicle models. Therefore, this invention provides an ISOFIX connection device with electronic detection functionality to address the shortcomings of existing technologies. To this end, a PVC corrugated pipe cutting tool is proposed to solve the aforementioned problems. Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides a PVC corrugated pipe cutting tool, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an ISOFIX connection device with electronic detection function, comprising a housing and a locking mechanism, wherein the locking mechanism comprises an assembly shell disposed outside the housing, and a first push plate and a second push plate slidably connected inside the assembly shell, wherein a limit block is fixedly connected to one side of both the first push plate and the second push plate, and two limit holes are opened on one side of the assembly shell, wherein the outer side of the limit block is slidably connected to the inner side of the corresponding limit hole, a fixing post is fixedly connected to one side of the second push plate, and a first spring is sleeved on the outside of the fixing post, wherein one end of the first spring is fixedly connected to the inner wall of a groove opened on one side of the first push plate.

[0005] As a further description of the above technical solution: A locking hole is provided on one side of the assembly shell. An arc-shaped locking block is slidably connected to the inner side of the first push plate. A second spring is fixedly connected to one side of the arc-shaped locking block and the inner side of the first push plate. The outer protrusion of the arc-shaped locking block is engaged inside the locking hole. The inclined surface of one end of the second push plate is slidably connected to the outer arc surface of the arc-shaped locking block.

[0006] As a further description of the above technical solution: A guide shell is fixedly connected to the inner side of the outer shell. Two inner shells that fit together are slidably connected to the inner side of the guide shell. Two mounting shells that fit together are installed on the inner side of the guide shell. A PCB control board is installed inside the two mounting shells.

[0007] As a further description of the above technical solution: The two inner shells are slidably connected by a connector, one end of which is fixedly connected to a limiting piece. The inner sides of the two inner shells are rotatably connected by a front locking hook. A first tension spring is provided between the front locking hook and the limiting piece. The two ends of the first tension spring are respectively connected to the opening on the outside of the front locking hook and the opening at one end of the limiting piece.

[0008] As a further description of the above technical solution: The two inner shells are fixedly connected to a fixing block inside. A sleeve rod is rotatably connected to the inner side of the fixing block. A cam is fixedly connected to one end of the sleeve rod. The outer side of the cam is in contact with a trigger switch on the outer side of the PCB control board.

[0009] As a further description of the above technical solution: The sleeve is internally slidably connected to a connecting rod, one end of which is provided with a protrusion and contacts the inner side of the connector, and a torsion spring is sleeved on the outside of the connecting rod.

[0010] As a further description of the above technical solution: One end of the torsion spring is fixedly connected to the outside of the fixed block, and the other end of the torsion spring is fixedly connected to the outside of the protrusion at one end of the connecting rod.

[0011] As a further description of the above technical solution: A pin is fixedly connected to the inner side of one end of the connector, and a rear locking block is rotatably connected to the inner side of the two inner shells. An arc-shaped notch is provided on the outer side of the rear locking block, and the outer side of the pin contacts the arc-shaped notch.

[0012] As a further description of the above technical solution: A second tension spring is fixedly connected to the outer side of the rear locking block, and one end of the second tension spring is fixedly connected to the inner side of one of the inner shells.

[0013] As a further description of the above technical solution: A first knurling shaft and a second knurling shaft are respectively provided inside the two inner shells and at the internal through holes of the connector. One end of the first knurling shaft and the second knurling shaft are respectively inserted into the interior of the assembly shell and the first push plate.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the locking and unlocking functions are stable and reliable. When locking, the mechanical structure engages and the electronic signal is linked to achieve dual protection. The mechanical aspect can form a stable locking state through the cooperation of components, and the electronic aspect can provide real-time feedback of the locking signal. When unlocking, the mechanical structure can be reset by pushing in opposite directions, and the electronic signal will be switched to an unlock prompt at the same time. The whole process does not require complicated operation, and the components work together smoothly, which can effectively avoid operation jamming or functional failure, and ensure stability and safety during use.

[0015] 2. In this utility model, the structure is reasonably laid out, and the electronic interface is concentrated at the tail of a specific structure, away from the sliding area. This fundamentally avoids problems such as the wire harness getting stuck or tangled with other components during the sliding adjustment of the device, reducing the risk of functional failure due to wire harness failure. At the same time, it complies with the assembly specifications of child safety seats, which not only meets the usage requirements, but also extends the overall service life of the device and reduces maintenance costs.

[0016] 3. This utility model has a flexible gear adjustment capability. After unlocking, the internal core structure can slide freely inside the shell to achieve gear adjustment. During the sliding process, each component maintains stability through precise connection and cooperation, without misalignment or jamming. It can adapt to the installation requirements in different scenarios. At the same time, the core structure adopts a fitting design, which has strong overall reliability and can maintain good performance for a long time, adapting to the long-term use requirements of child safety seats. Attached Figure Description

[0017] Figure 1This is a front perspective view of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 2 This is a rear perspective view of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 3 This is a schematic diagram of the locking mechanism of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the housing of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 5 This is a schematic diagram of the internal structure of the inner shell of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 6 This is an exploded view of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 7 This is a schematic diagram of the mounting housing of an ISOFIX connection device with electronic detection function proposed in this utility model; Figure 8 This is a schematic diagram of the front locking hook of an ISOFIX connection device with electronic detection function proposed in this utility model.

[0018] Legend: 1. Outer shell; 2. Locking mechanism; 201. Assembly shell; 202. Snap hole; 203. Limiting hole; 204. First push plate; 205. Second push plate; 206. Limiting block; 207. Fixing post; 208. First spring; 209. Second spring; 210. Arc-shaped snap block; 3. Mounting shell; 4. PCB control board; 5. Guide shell; 6. Inner shell; 7. Connector; 8. Limiting piece; 9. First tension spring; 10. Front locking hook; 11. Fixing block; 12. Connecting rod; 13. Torsion spring; 14. Pin; 15. Rear locking block; 16. Sleeve rod; 17. Cam; 18. Second tension spring; 19. First knurled shaft; 20. Second knurled shaft. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1-8This utility model provides an embodiment of an ISOFIX connection device with electronic detection function, including a housing 1 and a locking mechanism 2. The locking mechanism 2 includes an assembly shell 201, which is disposed outside the housing 1. A first push plate 204 and a second push plate 205 are slidably connected inside the assembly shell 201. Limiting blocks 206 are fixedly connected to one side of both the first push plate 204 and the second push plate 205. Two limiting holes 203 are opened on one side of the assembly shell 201. The outer side of the limiting block 206 is slidably connected to the inner side of the corresponding limiting hole 203. The second push plate 205... A fixing post 207 is fixedly connected to one side, and a first spring 208 is sleeved on the outside of the fixing post 207. One end of the first spring 208 is fixedly connected to the inner wall of the groove opened on one side of the first push plate 204. A locking hole 202 is opened on one side of the assembly shell 201. An arc-shaped locking block 210 is slidably connected to the inner side of the first push plate 204. A second spring 209 is fixedly connected to one side of the arc-shaped locking block 210 and the inner side of the first push plate 204. The outer protrusion of the arc-shaped locking block 210 is engaged in the inside of the locking hole 202. One end of the second push plate 205 is slidably connected to the outer arc surface of the arc-shaped locking block 210. A guide shell 5 is fixedly connected to the inner side of the outer shell 1. Two inner shells 6 are slidably connected to the inner side of the guide shell 5. Two mounting shells 3 are installed on the inner side of the guide shell 5. A PCB control board 4 is installed inside the two mounting shells 3. A connector 7 is slidably connected inside the two inner shells 6. A limit piece 8 is fixedly connected to one end of the connector 7. A front locking hook 10 is rotatably connected to the inner side of the two inner shells 6. A first tension spring 9 is provided between the front locking hook 10 and the limit piece 8. The two ends of the first tension spring 9 are respectively connected to the opening on the outer side of the front locking hook 10 and the opening at one end of the limit piece 8. A fixing block 11 is fixedly connected to the inner side of the two inner shells 6. A sleeve rod 16 is rotatably connected to the inner side of the fixing block 11. A cam 17 is fixedly connected to one end of the sleeve rod 16. The outer side of the cam 17 is in contact with the trigger switch on the outer side of the PCB control board 4. A connecting rod 12 is slidably connected inside the sleeve rod 16. A protrusion is provided at one end of the connecting rod 12 and it is in contact with the inner side of the connector 7. A torsion spring 13 is sleeved on the outside of the connecting rod 12. One end of the torsion spring 13 is fixedly connected to the outside of the fixing block 11, and the other end of the torsion spring 13 is fixedly connected to the outside of the protrusion at one end of the connecting rod 12. A pin 14 is fixedly connected to the inside of one end of the connecting piece 7. A rear locking block 15 is rotatably connected to the inside of the two inner shells 6. An arc-shaped notch is provided on the outside of the rear locking block 15. The outside of the pin 14 contacts the arc-shaped notch. A second tension spring 18 is fixedly connected to the outside of the rear locking block 15. One end of the second tension spring 18 is fixedly connected to the inside of one of the inner shells 6. A first knurled shaft 19 and a second knurled shaft 20 are respectively provided in the inside of the two inner shells 6 and the through hole of the connecting piece 7. One end of the first knurled shaft 19 and the second knurled shaft 20 are respectively inserted into the inside of the assembly shell 201 and the first push plate 204.

[0021] Specifically, the assembly shell 201 is connected to the outer shell 1 via two knurled shafts. The inner side of the assembly shell 201 is reserved with slides that are compatible with the first push plate 204 and the second push plate 205, ensuring that the two push plates can slide smoothly in a straight line. The limiting block 206 is fixedly connected to the same side of the first push plate 204 and the second push plate 205 by welding. Its shape matches the shape of the limiting hole 203. The limiting block 206 is embedded in the limiting hole 203 and can slide along the length of the hole, thereby limiting the sliding range of the push plate. The fixing post 207 is vertically welded to the side of the second push plate 205 facing the first push plate 204. The first spring 208 is sleeved on the outside of the fixing post 207. One end of the spring is embedded in the groove on the side of the first push plate 204 and welded to the inner wall of the groove. The other end abuts against the side of the second push plate 205, so that the two push plates remain separated in their natural state. The arc-shaped locking block 210 is slidably connected through the sliding groove on the inner side of the first push plate 204. One end of the second spring 209 is welded to the side of the arc-shaped locking block 210 away from the locking hole 202, and the other end is welded to the inner wall of the first push plate 204 for fixation. Under the elastic force of the second spring 209, the outer protrusion of the arc-shaped locking block 210 can be locked into the locking hole 202 of the assembly shell 201 to form a locking fit. The second push plate 205 has a bevel near the arc-shaped locking block 210, and the bevel is in close contact with the outer arc surface of the arc-shaped locking block 210. The guide shell 5 is fixed to the inside of the outer shell 1 by screws. Its inner wall is provided with a guide rail. The outer sides of the two inner shells 6 are provided with sliders that cooperate with the guide rails, so that the inner shells 6 can slide along the length of the guide shell 5. The mating surfaces of the two inner shells 6 adopt a concave-convex fit structure to ensure tight fit and synchronous movement. Two mounting shells 3 are symmetrically fastened to the inside of the guide shell 5 by a snap-fit ​​structure to form a closed cavity. The PCB control board 4 is fixed inside the mounting shell 3 by screws, and the trigger switch on its outside faces the cam 17 to ensure effective contact with the cam 17. The connector 7 is slidably connected through the slide inside the inner shell 6. The limiting piece 8 is fixed to one end of the connector 7 by bolts. The front locking hook 10 is rotatably connected to the inner side of the two inner shells 6 by a pin. The two ends of the first tension spring 9 are hooked to the opening on the outside of the front locking hook 10 and the opening at one end of the limiting piece 8, respectively. The fixing block 11 is welded inside the two inner shells 6. The sleeve rod 16 is rotatably connected to the inner side of the fixing block 11 through the bearing. The cam 17 is fixed to one end of the sleeve rod 16 through the key connection. The connecting rod 12 is inserted into the sleeve rod 16 and can slide along the axis. At the same time, the two transmit torque through the spline. The protrusion at one end of the connecting rod 12 keeps in contact with the inner inclined surface of the connecting piece 7. The torsion spring 13 is sleeved on the outside of the connecting rod 12. One end of the spring is welded to the outside of the fixing block 11, and the other end is welded to the outside of the protrusion at one end of the connecting rod 12, so that the connecting rod 12 is always subjected to the return torque. The pin 14 is welded to the inner side of one end of the connector 7. The rear locking block 15 is rotatably connected to the inner side of the two inner shells 6 by a pin. The arc-shaped notch on its outer side fits against the outer side of the pin 14. One end of the second tension spring 18 is welded to the outer side of the rear locking block 15, and the other end is welded to the inner side of one of the inner shells 6 for fixation. The connection method of the knurled shaft is as follows: one end of the first knurled shaft 19 is inserted into the reserved hole of the assembly shell 201 and fixed by interference fit, and the other end passes through the internal through hole of the inner shell 6; one end of the second knurled shaft 20 is inserted into the reserved hole of the first push plate 204 and fixed by interference fit, and the other end passes through the internal through hole of the connector 7, so as to realize the linkage between the locking mechanism 2 and the internal structure. In the locked state, under the action of the second spring 209, the outer protrusion of the arc-shaped locking block 210 is tightly engaged in the locking hole 202 of the assembly shell 201, which restricts the sliding of the first push plate 204, thereby keeping the second knurled shaft 20 connected to the first push plate 204 in a fixed position. At this time, the first knurled shaft 19 and the second knurled shaft 20 are at their maximum distance. The second knurled shaft 20 pushes the connecting piece 7 to move along the inner shell 6 towards the front locking hook 10. During the movement of the connector 7, the inclined surface on its inner side will exert a pushing force on the protrusion at one end of the connecting rod 12, forcing the connecting rod 12 to drive the sleeve rod 16 to rotate around the fixed block 11. The cam 17 at the other end of the sleeve rod 16 will rotate accordingly and contact the trigger switch on the outside of the PCB control board 4, causing the trigger switch to close. The PCB control board 4 will then send a locking signal. At the same time, the connector 7 will drive the limit plate 8 to move synchronously. The limit plate 8 will pull the front locking hook 10 to rotate around the pin shaft through the first tension spring 9, so that the front locking hook 10 completes the locking action. During the unlocking operation, the first push plate 204 and the second push plate 205 are pushed towards the center, bringing the two push plates closer together and compressing the first spring 208. During this process, the inclined surface at one end of the second push plate 205 presses against the outer arc surface of the arc-shaped locking block 210, forcing the arc-shaped locking block 210 to compress the second spring 209 and slide inward toward the first push plate 204. Its outer protrusion disengages from the locking hole 202, releasing the lock on the first push plate 204. The first push plate 204 drives the second knurled shaft 20 to move away from the front lock hook 10, and the connecting piece 7 loses its thrust. At this time, the reset torque of the torsion spring 13 drives the connecting rod 12 to rotate in the opposite direction. The connecting rod 12 drives the cam 17 to reset through the sleeve rod 16, so that the cam 17 is disengaged from the trigger switch of the PCB control board 4. The trigger switch is disconnected, and the PCB control board 4 sends an unlocking signal. Driven by the connecting rod 12, the connecting piece 7 continues to move closer to the rear locking block 15. The pin 14 on its inner side gradually slides into the arc-shaped notch of the rear locking block 15 and forces the rear locking block 15 to rotate around the pin by squeezing the inner wall of the notch. The part of the rear locking block 15 that was originally stuck at the opening of the outer shell 1 rotates and is stored inside the outer shell 1, releasing the restriction on the two inner shells 6. At this time, the two inner shells 6 and all the internal structures can slide freely in the outer shell 1 along the guide shell 5 to realize gear adjustment. The two inner shells 6 and their internal structure constitute the FIX structure, which has high reliability. The electronic interface, including the PCB control board 4, is located at the rear of the FIX structure, which prevents the wiring harness from getting stuck with other components during ISOFIX sliding, thereby preventing functional failure and meeting the assembly requirements of child safety seats.

[0022] Working principle: In the locked state, the outer protrusion of the arc-shaped locking block 210 is locked in the locking hole 202, making the first push plate 204 unable to move, and thus preventing the second knurled shaft 20 from moving. The gap between the first knurled shaft 19 and the second knurled shaft 20 is at its maximum. The second knurled shaft 20 will cause the connector 7 to move towards the forward locking hook 10. Since the inner side of the connector 7 is set with a slope, it forces the protrusion at one end of the connecting rod 12 to rotate, thereby driving the sleeve rod 16 and the cam 17 to rotate. The cam 17 will touch the trigger switch on the outside of the PCB control board 4, so that the signal is connected to indicate locking. At this time, the connector 7 drives the limit plate 8 to squeeze the front locking hook 10 to rotate and lock. When unlocking, as the first push plate 204 and the second push plate 205 are pushed towards each other, the inclined surface of one end of the second push plate 205 presses against the arc surface of the arc surface block 210, causing the outer protrusion of the arc surface block 210 to move out of the locking hole 202. This also causes the second knurled shaft 20 to move away from the front locking hook 10. The rotational force of the torsion spring 13 will cause the connecting rod 12 to reset, thereby causing the sleeve rod 16 and the cam 17 to reset together and disengage from the trigger switch. The PCB control board 4 will indicate unlocking. When the connecting piece 7 continues to move towards the rear locking block 15, the pin 14 will... Slide into the arc-shaped notch on the rear locking block 15, press the rear locking block 15 to rotate, causing the protrusion on the outer side of the rear locking block 15, which is stuck at the outer opening of the outer shell 1, to rotate and retract into the interior of the outer shell 1, thereby releasing the limiting effect. Then, the two inner shells 6 and the overall internal structure can slide freely in the outer shell 1 to adjust the gear position. The two inner shells 6 and their internal structure are FIX structures, which have high reliability. The electronic interface is placed at the rear of the FIX, which meets the requirements for child safety seat installation and avoids the wiring harness getting stuck when sliding in ISOFIX, causing functional failure.

Claims

1. An ISOFIX connection device with electronic detection function, comprising a housing (1) and a locking mechanism (2), characterized in that, The locking mechanism (2) includes an assembly shell (201), which is disposed outside the outer shell (1). A first push plate (204) and a second push plate (205) are slidably connected inside the assembly shell (201). A limit block (206) is fixedly connected to one side of both the first push plate (204) and the second push plate (205). Two limit holes (203) are opened on one side of the assembly shell (201). The outer side of the limit block (206) is slidably connected to the inner side of the corresponding limit hole (203). A fixing post (207) is fixedly connected to one side of the second push plate (205). A first spring (208) is sleeved on the outside of the fixing post (207). One end of the first spring (208) is fixedly connected to the inner wall of the groove opened on one side of the first push plate (204).

2. The ISOFIX connection device with electronic detection function according to claim 1, characterized in that, The assembly shell (201) has a locking hole (202) on one side. The inner side of the first push plate (204) is slidably connected to an arc-shaped locking block (210). One side of the arc-shaped locking block (210) is fixedly connected to the inner side of the first push plate (204) with a second spring (209). The outer protrusion of the arc-shaped locking block (210) is engaged in the inside of the locking hole (202). One end of the second push plate (205) is slidably connected to the outer arc surface of the arc-shaped locking block (210).

3. The ISOFIX connection device with electronic detection function according to claim 1, characterized in that, The inner side of the outer shell (1) is fixedly connected to a guide shell (5), and the inner side of the guide shell (5) is slidably connected to two inner shells (6) that fit together. The inner side of the guide shell (5) is fitted with two mounting shells (3) that fit together. The two mounting shells (3) are fitted with a PCB control board (4).

4. The ISOFIX connection device with electronic detection function according to claim 3, characterized in that, The two inner shells (6) are slidably connected by a connector (7), one end of which is fixedly connected to a limiting piece (8). The inner sides of the two inner shells (6) are rotatably connected by a front locking hook (10). A first tension spring (9) is provided between the front locking hook (10) and the limiting piece (8). The two ends of the first tension spring (9) are respectively connected to the opening on the outside of the front locking hook (10) and the opening at one end of the limiting piece (8).

5. An ISOFIX connection device with electronic detection function according to claim 4, characterized in that, The two inner shells (6) are fixedly connected to a fixing block (11), and a sleeve rod (16) is rotatably connected to the inner side of the fixing block (11). A cam (17) is fixedly connected to one end of the sleeve rod (16), and the outer side of the cam (17) is in contact with the trigger switch on the outer side of the PCB control board (4).

6. The ISOFIX connection device with electronic detection function according to claim 5, characterized in that, The sleeve (16) is internally slidably connected to a connecting rod (12). One end of the connecting rod (12) is provided with a protrusion and is in contact with the inner side of the connector (7). A torsion spring (13) is sleeved on the outside of the connecting rod (12).

7. An ISOFIX connection device with electronic detection function according to claim 6, characterized in that, One end of the torsion spring (13) is fixedly connected to the outside of the fixing block (11), and the other end of the torsion spring (13) is fixedly connected to the outside of the protrusion at one end of the connecting rod (12).

8. An ISOFIX connection device with electronic detection function according to claim 7, characterized in that, A pin (14) is fixedly connected to the inner side of one end of the connector (7), and a rear locking block (15) is rotatably connected to the inner side of the two inner shells (6). An arc-shaped notch is provided on the outer side of the rear locking block (15), and the outer side of the pin (14) is in contact with the arc-shaped notch.

9. An ISOFIX connection device with electronic detection function according to claim 8, characterized in that, A second tension spring (18) is fixedly connected to the outer side of the rear locking block (15), and one end of the second tension spring (18) is fixedly connected to the inner side of one of the inner shells (6).

10. An ISOFIX connection device with electronic detection function according to claim 4, characterized in that, A first knurled shaft (19) and a second knurled shaft (20) are respectively provided inside the two inner shells (6) and the internal through holes of the connector (7). One end of the first knurled shaft (19) and the second knurled shaft (20) are respectively inserted into the interior of the assembly shell (201) and the first push plate (204).

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