Anti-loosening ISOFIX assembly
By designing a secondary fixing structure for the buckle plate and spring, as well as a positioning plate limiter in the ISOFIX assembly, the problem of loosening at the interface is solved, installation efficiency and stability are improved, and the safety of the child seat is ensured.
Patent Information
- Application Number
- CN202520753052.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-21
AI Technical Summary
ISOFIX assemblies are prone to deformation during long-term use, which can cause the interface to loosen and pose a safety hazard.
An anti-loosening structure was designed, including an interface bracket, ISOFIX connector, and reinforcement mechanism. The ISOFIX connector is secondary fixed by the cooperation of the snap plate and spring, and the positioning plate limits the two sides of the connector to ensure a stable connection.
It improves the installation efficiency of ISOFIX connectors, enhances connection stability, reduces the risk of child seats shaking, and provides more reliable safety protection.
Smart Images

Figure CN223904925U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to child safety seat technical field more specifically, relate to a ISOFIX assembly of anti loosening. BACKGROUND
[0002] ISOFIX assembly is the key fixing device of automobile child safety seat, and is designed for promoting child travel safety. It is composed of rigidly connected seat interface and matching anchor point, and is installed on the rear seat of the vehicle. It can effectively disperse impact force when the vehicle encounters a collision, firmly fix the child safety seat in the vehicle, and maximally reduce the harm to children, to provide stable and reliable safety guarantee for children during driving.
[0003] ISOFIX assembly includes interface support and hard interface, and the front end of the hard interface is locked on the U-shaped metal piece of the interface support. In long-term use, the interface part is prone to deformation, which may damage the close fit between the interface and the fixing point, and further cause loosening, so that the child seat is prone to shaking, and there is a certain safety hazard. In view of this, we propose an ISOFIX assembly of anti loosening. UTILITY MODEL CONTENT
[0004] The utility model discloses a ISOFIX assembly of anti loosening, which overcomes the shortcomings of the prior art, meets the actual needs, and solves the technical problem that the interface part is prone to deformation in long-term use, causing loosening of the connection position and a certain safety hazard.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: an ISOFIX assembly of anti loosening, which comprises an interface support, an ISOFIX connector inserted into the interface support, and a reinforcing mechanism installed on the interface support. The interface support comprises interface pieces symmetrically arranged at the front end of the interface support. The side end of the interface piece is provided with a positioning notch. The reinforcing mechanism comprises mounting plates symmetrically installed on the interface pieces. The mounting plates are located at the positioning notches. The mounting plates are symmetrically provided with positioning plates. The rear end of the positioning plate is rotatably installed with a buckle plate at the front position. The rear end of the positioning plate is bent to form an installation part. The installation part is provided with a spring.
[0006] Preferably, the upper end of the interface support is symmetrically provided with a positioning part. The upper end of the interface support is provided with a seat belt connector at the center. The seat belt connector is located between the positioning parts.
[0007] Preferably, the upper end and the lower end of the ISOFIX connector are symmetrically provided with protruding parts. The rear end of the protruding part and the ISOFIX connector form an inverted hook groove. The ISOFIX connector is clamped on the interface piece.
[0008] Preferably, the mounting plate is arranged in a U shape, the mounting plate covers the upper end and the lower end of the interface piece, the mounting plate is provided with corresponding pin holes, and the positioning pins are inserted into the pin holes.
[0009] Preferably, the mounting part is arranged at an angle of 90 degrees, the mounting part partially forms an L shape with the positioning plate, the front end of the positioning plate is provided with a limiting sliding groove, a pressing rod is slidably arranged in the limiting sliding groove, the pressing rod is arranged in an L shape, the pressing rod is provided with a pressing plate, and the pressing plate is located in front of the positioning plate and in contact with the buckle plate.
[0010] Preferably, the buckle plate is arranged in an arc shape along the long axis direction, the initial position of the buckle plate is a wide opening, and the tail of the spring is connected with the buckle plate.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1. The utility model discloses a buckle plate structure, and the initial wide opening between the buckle plates plays a guiding role on the ISOFIX connector, so that the connector can be quickly aligned with the interface piece, the installation efficiency is greatly improved, the installation time and difficulty are reduced, parents can quickly install a child safety seat in the vehicle, the buckle plate and the spring are matched, after the ISOFIX connector is clamped on the interface piece, the buckle plate can be clamped into the barbed groove of the ISOFIX connector under the reaction force of the spring, secondary fixing is realized, the force borne by the ISOFIX connector is shared by two times of fixing, the stability of connection is greatly enhanced, the loosening problem caused by deformation of the interface part due to long-term use is avoided, the shaking risk of the child seat is reduced, and more reliable protection is provided for the safety of children in the vehicle.
[0013] 2. The utility model also discloses a positioning plate structure, during the process that the ISOFIX connector is clamped on the interface piece and during the process that the child safety seat is used, the positioning plate can limit the two sides of the ISOFIX connector, the accuracy of ISOFIX connector installation is further guaranteed, the ISOFIX connector can be effectively prevented from shaking left and right when being clamped on the interface piece, the child safety seat can be ensured to be stable after installation, the child can be prevented from being uncomfortable due to shaking, and the overall safety is further improved. ACCURATE DRAWINGS
[0014] Fig. 1 It is a front view structural schematic diagram of the utility model;
[0015] Fig. 2 It is a partial sectional view structural schematic diagram of one kind of use state of the utility model;
[0016] Fig. 3 It is an interface support structure schematic diagram of the utility model;
[0017] Fig. 4 The utility model discloses a reinforcing mechanism structure schematic view.
[0018] Mark explanation in drawing: 101, interface support;102, positioning part;103, safety belt connecting piece;104, interface piece;1041, positioning notch;105, bolt hole;201, ISOFIX connector;202, convex part;300, reinforcing mechanism;301, mounting plate;302, positioning plate;3021, mounting part;303, spring;304, buckle plate;305, limit sliding slot;306, press bar;307, pressing plate. DETAILED DESCRIPTION
[0019] As Figs. 1 to 4 shown, the utility model relates to a kind of anti-loose ISOFIX assembly, including interface support 101 and the ISOFIX connector 201 of plug connection in interface support 101 and reinforcing mechanism 300 installed on interface support 101, interface support 101 includes the interface piece 104 of symmetrical setting at the front end of interface support 101, the side end of interface piece 104 is provided with positioning notch 1041, reinforcing mechanism 300 includes the mounting plate 301 of symmetrical installation on interface piece 104, mounting plate 301 is located at positioning notch 1041, mounting plate 301 is provided with the positioning plate 302, the rear end front part position of positioning plate 302 is rotatably installed with buckle plate 304, the rear end of positioning plate 302 is bent and is provided with mounting part 3021, and mounting part 3021 is provided with spring 303.The utility model can be fixed twice to ISOFIX connector 201, twice fixation shares the force borne by ISOFIX connector, greatly enhances the stability of connection, effectively avoids the loosening problem caused by deformation of interface part due to long-term use, reduces the risk of child seat shaking, provides more reliable guarantee for children's safety in car.
[0020] Specifically, the upper end of the interface support 101 is symmetrically provided with a positioning part 102, and the upper end of the interface support 101 is provided with a safety belt connecting piece 103 at the center thereof, and the safety belt connecting piece 103 is located between the positioning parts 102. The safety belt connecting piece 103 is provided for connecting the safety belt of the child safety seat, further ensuring the stability of the installation of the child safety seat.
[0021] Further, the ISOFIX connector 201 is symmetrically provided with a protrusion 202 at the upper end and the lower end, and a reverse hook groove is formed between the rear end of the protrusion 202 and the ISOFIX connector 201, and the ISOFIX connector 201 is clamped on the interface piece 104. When the ISOFIX connector 201 is clamped on the interface piece 104, the buckle plate 304 will be pressed by the ISOFIX connector 201, so that the end of the buckle plate 304 is clamped in the reverse hook groove, and the ISOFIX connector 201 is fixed again to ensure the stability of the connection.
[0022] It is worth noting that the mounting plate 301 is U-shaped, and the mounting plate 301 covers the upper end and the lower end of the interface piece 104. The mounting plate 301 is provided with a corresponding pin hole 105 on the interface piece 104, and a positioning pin is inserted in the pin hole 105. The mounting plate 301 is installed in cooperation with the pin hole 105 and the positioning pin to install the reinforcing mechanism 300.
[0023] It is worth noting that the mounting part 3021 is bent by 90 degrees, and the mounting part 3021 forms an L-shaped part with the positioning plate 302. The front end of the positioning plate 302 is provided with a limiting sliding groove 305, and a pressing rod 306 is slidingly installed in the limiting sliding groove 305. The pressing rod 306 is L-shaped, and a pressing plate 307 is provided on the pressing rod 306. The pressing plate 307 is located in front of the positioning plate 302 and contacts the buckle plate 304. The positioning plate 302 can limit the sides of the ISOFIX connector 201, and can prevent the ISOFIX connector 201 from shaking left and right when clamped on the interface piece 104, thereby ensuring the stability of the child safety seat. When the buckle plate 304 is loosened to fix the ISOFIX connector 201, the pressing plate 307 is pressed to press the buckle plate 304, so that the buckle plate 304 can be rotated, thereby allowing the end of the buckle plate 304 to be separated from the reverse hook groove formed at the rear end of the protrusion 202, and the ISOFIX connector 201 can be easily disassembled.
[0024] It is worth noting that the buckle plate 304 is curved and arc-shaped along the long axis direction, and the initial position of the buckle plate 304 is wide-mouthed. The end of the spring 303 is connected to the tail of the buckle plate 304. The wide-mouthed initial position of the buckle plate 304 can guide the ISOFIX connector 201, so that the ISOFIX connector 201 can be quickly clamped on the interface piece 104. When the ISOFIX connector 201 is clamped on the interface piece 104, the end of the buckle plate 304 is located in the reverse hook groove in cooperation with the spring 303, and the buckle plate 304 can fix the ISOFIX connector 201 again.
[0025] Working principle: the embodiment provides a anti-loosening ISOFIX assembly, in use, first, the interface support 101 is installed at the corresponding position of the backrest of the car seat, the interface piece 104 is located in the gap between the car seat and the backrest of the seat, then the reinforcing mechanism 300 is installed on the interface piece 104 through the mounting plate 301, the mounting plate 301 is inserted into the positioning pin on the interface piece 104, so that the installation of the reinforcing mechanism 300 on the interface support 101 is completed, when the child safety seat is installed, the ISOFIX connector 201 is connected with the interface piece 104, because the initial position between the buckle plate 304 is wide-mouthed, the ISOFIX connector 201 can be guided, so that the ISOFIX connector 201 can be quickly aligned with the interface piece 104, the installation efficiency of the ISOFIX connector 201 is improved, in the insertion process, the buckle plate 304 is extruded, with the continuous deepening of the ISOFIX connector 201, the buckle plate 304 rotates around the rotation point in front of the rear end of the positioning plate 302, and the spring 303 is compressed, when the ISOFIX connector 201 is completely clamped on the interface piece 104, the end of the buckle plate 304 can be clamped into the barb groove in the rear end of the protruding part 202 under the reaction force of the spring 303, the ISOFIX connector 201 can be fixed again, in the adaptation process, the positioning plate 302 limits the left and right sides of the ISOFIX connector 201, prevents the left and right sides from shaking, ensures the stability of the child safety seat after installation, meanwhile, the positioning part 102 symmetrically arranged on the upper end of the interface support 101 and the safety belt connecting piece 103 located between the positioning part 102 can be used for connecting the safety belt of the child safety seat, further enhance the stability of installation, when the ISOFIX connector 201 needs to be disassembled, the pressing rod 306 is pressed, the pressing rod 306 slides in the limiting sliding groove 305, drives the pressing plate 307 to move towards the buckle plate 304, the pressing plate 307 extrudes the buckle plate 304 to make it rotate, so that the end of the buckle plate 304 can be separated from the barb groove formed in the rear end of the protruding part 202, so that the ISOFIX connector 201 can be conveniently taken off from the interface piece 104.
[0026] The embodiment of the utility model discloses the preferable embodiment, but is not limited to this, the ordinary skill of the art, the spirit of the utility model is appreciated to the above-mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.
Claims
1. An anti-loosening ISOFIX assembly, characterized in that, The application relates to an interface support (101), an ISOFIX connector (201) plugged on the interface support (101) and a reinforcing mechanism (300) installed on the interface support (101), the interface support (101) comprising interface pieces (104) symmetrically arranged at the front end of the interface support (101), the side ends of the interface pieces (104) being provided with positioning notches (1041), the reinforcing mechanism (300) comprising mounting plates (301) symmetrically mounted on the interface pieces (104), the mounting plates (301) being located at the positioning notches (1041), the mounting plates (301) being symmetrically provided with positioning plates (302), the rear end front part position of the positioning plates (302) being rotatably provided with buckle plates (304), the rear end of the positioning plates (302) being provided with mounting portions (3021) in a bending mode, the mounting portions (3021) being provided with springs (303).
2. A l oose prevention ISOFIX assembly according to claim 1, characterized in that The upper end of the interface support (101) is symmetrically provided with positioning portions (102), and the upper end center of the interface support (101) is provided with a safety belt connecting piece (103) located between the positioning portions (102).
3. A l oose prevention ISOFIX assembly according to claim 2, c h a r a c t e r i z e d in that The upper end and the lower end of the ISOFIX connector (201) are symmetrically provided with convex portions (202), the rear end of the convex portions (202) and the ISOFIX connector (201) form a barb groove, and the ISOFIX connector (201) is clamped on the interface pieces (104).
4. A l oose prevention ISOFIX assembly according to claim 3, c h a r a c t e r i z e d in that The mounting plates (301) are provided in a U-shaped mode, the mounting plates (301) cover the upper end and the lower end of the interface pieces (104), the mounting plates (301) and the interface pieces (104) are provided with corresponding bolt holes (105), and the bolt holes (105) are plugged with positioning bolts.
5. A l oose prevention ISOFIX assembly according to claim 4, c h a r a c t e r i z e d in that The mounting portions (3021) are provided in a bending mode of 90 degrees, the mounting portions (3021) partially form L-shaped positioning plates (302), the front end of the positioning plates (302) is provided with a limiting sliding groove (305), the limiting sliding groove (305) is slidably provided with a pressing rod (306), the pressing rod (306) is provided in an L-shaped mode, the pressing rod (306) is provided with a pressing plate (307), and the pressing plate (307) is located in front of the positioning plate (302) and contacts the buckle plate (304).
6. A l oose prevention ISOFIX assembly according to claim 5, c h a r a c t e r i z e d in that The buckle plates (304) are provided in a curved arc mode along the long axis direction, the initial positions of the buckle plates (304) are wide-mouthed, and the tail end of the spring (303) is connected with the tail portion of the buckle plate (304).