Limiting and locking device for ISOFIX interface of child safety seat
By introducing a moving component and a locking component into the child safety seat, the position adjustment of the interface is achieved by using a motor-driven transmission block and transmission plate, and positioning is achieved by the cooperation of the locking rod and the tension spring. This solves the problem of inconvenient position adjustment of the ISOFIX interface and realizes convenient position adjustment and positioning.
Patent Information
- Application Number
- CN202520566693.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Most existing ISOFIX interfaces are hidden inside the seat or installed outside the seat via connectors, making position and tightness adjustments inconvenient.
A limiting and locking device including a moving component and a locking component was designed. The position adjustment of the interface is realized by driving the transmission block and transmission plate by a motor, and the positioning is realized by the cooperation of the locking rod and the tension spring.
It enables convenient position adjustment and positioning of the ISOFIX interface, solving the problem of inconvenient adjustment in existing technologies.
Smart Images

Figure CN223850476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of children safety seat, especially relates to a limiting and locking device of children safety seat ISOFIX interface. BACKGROUND
[0002] Children safety seat is a seat specially designed for children of different weights or age groups, which can effectively improve the safety of children riding in a car. It can be fixed to a motor vehicle, composed of a safety belt assembly with ISOFIX or LATCH interface, flexible components, adjusting mechanism and accessories, etc. It can reduce the impact force on children and limit the movement of children's body in the case of car collision or sudden deceleration, thereby reducing the harm to them.
[0003] The ISOFIX interface needs to be connected to the safety belt on the children safety seat to prevent accidents. The existing technology has the following problems: most of the existing ISOFIX interfaces are hidden in the seat or installed outside the seat through connecting pieces, but it is inconvenient when adjusting the position or tightness. UTILITY MODEL CONTENTS
[0004] In view of the problems existing in the prior art, the utility model provides a limiting and locking device of children safety seat ISOFIX interface which can overcome the above problems or at least partially solve the above problems.
[0005] The utility model is realized in this way, a limiting and locking device of children safety seat ISOFIX interface, including base and seat body, the seat body is installed at the top of base, the bottom of seat body is installed with leg pad, the surface of seat body is installed with safety belt, one side of safety belt is connected with interface ware, the surface of interface ware is equipped with limiting block, one side of interface ware is provided with moving assembly, the other side of interface ware is provided with locking assembly;
[0006] The moving assembly is used for adjusting the position of the interface ware.
[0007] The locking assembly is used for positioning the position of the interface ware.
[0008] In order to adjust the position of the interface ware, preferably, the moving assembly includes a support frame, a motor is installed at the top of the support frame, a transmission block is installed at the output end of the top of the motor, and a transmission plate is arranged on one side of the transmission block.
[0009] In order to position the position of the interface ware, preferably, the locking assembly includes a locking rod, a locking block is fixedly connected to one side of the locking rod, a stabilizing block is sleeved on the surface of the locking rod, and a tension spring is fixedly connected to one side of the stabilizing block.
[0010] In order to assist the interface device, preferably, the top of the limiting block is fixedly connected with the leg pad, and the surface of the interface device is in sliding connection with the inner wall of the limiting block.
[0011] In order to conveniently adjust the position of the interface device, preferably, the top of the supporting frame is fixedly connected with the leg pad, and the surface of the transmission plate is provided with a transmission groove, and one side of the transmission plate is fixedly connected with the interface device.
[0012] In order to conveniently adjust the position of the interface device, preferably, the surface of the transmission block extends to the inner cavity of the transmission groove, and the surface of the transmission block is in contact with the inner wall of the transmission groove.
[0013] In order to assist the interface device, preferably, the surface of the interface device is provided with a groove, one side of the locking rod extends to the inner cavity of the groove, the top of the stabilizing block is fixedly connected with the leg pad, and one side of the tension spring is fixedly connected with the locking block.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] The utility model discloses a cooperation of the use of the moving assembly and the locking assembly, when the child needs to adjust the position of the interface device, starts the motor, and the motor drives the transmission block to rotate, and the transmission block drives the transmission plate to move through the transmission groove, and the transmission plate drives the interface device to move, and the interface device slides in the inner cavity of the limiting block, and after sliding to the corresponding position, the interface device is limited through the locking assembly, and the adjustment is completed, and the problem that the existing ISOFIX interface is mostly hidden in the seat or is installed outside the seat through the connecting piece, but when the position or the tightness needs to be adjusted, it is inconvenient is solved. ACCURACY OF DRAWINGS
[0016] Figure 1 It is the three-dimensional structure schematic diagram provided by the utility model embodiment;
[0017] Figure 2 It is the three-dimensional schematic diagram of the structure bottom provided by the utility model embodiment;
[0018] Figure 3 It is the three-dimensional schematic diagram of the partial structure provided by the utility model embodiment;
[0019] Figure 4 It is the three-dimensional structure schematic diagram provided by the utility model embodiment Figure 3 It is the local enlarged view of A in the middle.
[0020] In the drawing: 1, base; 2, seat body; 3, leg pad; 4, safety belt; 5, interface device; 6, limiting block; 7, moving assembly; 701, supporting frame; 702, motor; 703, transmission block; 704, transmission plate; 8, locking assembly; 801, locking rod; 802, locking block; 803, stabilizing block; 804, tension spring. Detailed Implementation
[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0023] like Figures 1 to 4 As shown in the figure, the present invention provides a limiting and locking device for the ISOFIX interface of a child safety seat, including a base 1 and a seat body 2. The seat body 2 is installed on the top of the base 1, a leg pad 3 is installed on the bottom of the seat body 2, a seat belt 4 is installed on the surface of the seat body 2, an interface 5 is connected to one side of the seat belt, a limiting block 6 is sleeved on the surface of the interface 5, a moving component 7 is provided on one side of the interface 5, and a locking component 8 is provided on the other side of the interface 5.
[0024] The movable component 7 is used to adjust the position of the interface 5;
[0025] The locking component 8 is used to position the interface 5.
[0026] In order to adjust the position of the interface device 5, the moving component 7 includes a support frame 701, a motor 702 is mounted on the top of the support frame 701, a transmission block 703 is mounted on the output end of the top of the motor 702, and a transmission plate 704 is provided on one side of the transmission block 703.
[0027] In order to position the interface device 5, the locking assembly 8 includes a locking rod 801, a locking block 802 is fixedly connected to one side of the locking rod 801, a stabilizing block 803 is sleeved on the surface of the locking rod 801, and a tension spring 804 is fixedly connected to one side of the stabilizing block 803.
[0028] To assist in limiting the position of the interface device 5, the top of the limiting block 6 is fixedly connected to the leg pad 3, and the surface of the interface device 5 is slidably connected to the inner wall of the limiting block 6.
[0029] To facilitate adjustment of the position of the interface device 5, the top of the support frame 701 is fixedly connected to the leg pad 3, and a transmission groove is provided on the surface of the transmission plate 704. One side of the transmission plate 704 is fixedly connected to the interface device 5.
[0030] To facilitate adjustment of the position of the interface device 5, the surface of the transmission block 703 extends into the inner cavity of the transmission groove, and the surface of the transmission block 703 contacts the inner wall of the transmission groove.
[0031] In order to assist the interface 5 position limiting, the surface of the interface 5 is provided with a groove, one side of the locking rod 801 extends to the inner cavity of the groove, the top of the stabilizing block 803 is fixedly connected with the leg pad 3, and one side of the tension spring 804 is fixedly connected with the locking block 802.
[0032] The working principle of the utility model is:
[0033] In use, the user places the child on the seat body 2, and then inserts the safety belt 4 into the ISOFIX interface of the interface 5, when the child needs to adjust the position of the interface 5 due to discomfort, the user pulls the locking block 802 outward, the locking block 802 drives the locking rod 801 to move, the locking rod 801 leaves the inner cavity of the groove, the locking block 802 stretches the tension spring 804, and then the motor 702 is started, the motor 702 drives the transmission block 703 to rotate, the transmission block 703 drives the transmission plate 704 to move through the transmission groove, the transmission plate 704 drives the interface 5 to move, the interface 5 slides in the inner cavity of the limiting block 6, and after sliding to the corresponding position, the locking block 802 is loosened, the force released after the tension spring 804 is stretched drives the locking block 802 to drive the locking rod 801 to reset, the locking rod 801 enters the inner cavity of the groove, and the adjustment is completed.
[0034] It should be noted that in this document, relationship terms such as first and second are used only to differentiate one entity or action from another, and do not necessarily require or imply these entities or actions have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, it is not used to limit the utility model, any skilled person in the art without departing from the technical scheme range of the utility model.
Claims
1. A limiting locking device of an ISOFIX interface of a child safety seat, comprising a base (1) and a seat body (2), characterized in that: The seat body (2) is installed on the top of the base (1), the bottom of the seat body (2) is provided with a leg pad (3), the surface of the seat body (2) is provided with a safety belt (4), one side of the safety belt (4) is connected with an adapter (5), the surface of the adapter (5) is sleeved with a limiting block (6), one side of the adapter (5) is provided with a moving assembly (7), and the other side of the adapter (5) is provided with a locking assembly (8). The moving assembly (7) is used for adjusting the position of the adapter (5). The locking assembly (8) is used for positioning the position of the adapter (5).
2. A limiting and locking device of an ISOFIX interface of a child safety seat according to claim 1, characterized in that: The moving assembly (7) comprises a support frame (701), and a motor (702) is installed on the top of the support frame (701); the output end of the top of the motor (702) is provided with a transmission block (703); and one side of the transmission block (703) is provided with a transmission plate (704).
3. A limiting and locking device of an ISOFIX interface of a child safety seat according to claim 1, characterized in that: The locking assembly (8) comprises a locking rod (801), a locking block (802) is fixedly connected to one side of the locking rod (801), a stabilizing block (803) is sleeved on the surface of the locking rod (801), and a tension spring (804) is fixedly connected to one side of the stabilizing block (803).
4. The limiting and locking device of ISOFIX interface of child safety seat according to claim 1, characterized in that: The top of the limiting block (6) is fixedly connected with the leg pad (3), and the surface of the adapter (5) is in sliding connection with the inner wall of the limiting block (6).
5. The limiting and locking device of ISOFIX interface of child safety seat according to claim 2, characterized in that: The top of the support frame (701) is fixedly connected with the leg pad (3), and the surface of the transmission plate (704) is provided with a transmission groove.
6. A limiting and locking device of an ISOFIX interface of a child safety seat according to claim 2, characterized in that: The surface of the transmission block (703) extends to the inner cavity of the transmission groove, and the surface of the transmission block (703) is in contact with the inner wall of the transmission groove.
7. A limiting and locking device of an ISOFIX interface of a child safety seat according to claim 3, characterized in that: The surface of the adapter (5) is provided with a groove, one side of the locking rod (801) extends to the inner cavity of the groove, the top of the stabilizing block (803) is fixedly connected with the leg pad (3), and one side of the tension spring (804) is fixedly connected with the locking block (802).