Child safety seat connecting structure

Abstract

The utility model discloses a child safety seat connecting structure, relates to the field of child safety seats, and aims to solve the problem that two ISOFIX connectors independently mounted on two sides of a child safety seat in the prior art are not linked, so that the extension lengths of the two ISOFIX connectors need to be adjusted respectively, and the operation is troublesome. A connecting rod is fixedly connected to the middle of the interior of the fixing frame, a transmission rotating shaft is rotatably connected to the interior of the connecting rod, supporting rods are fixedly connected to the two sides of the middle of the interior of the fixing frame, linkage guide rails are fixedly connected to one sides of the front end and the rear end of the fixing frame, and rectangular telescopic grooves are formed in one sides of the interiors of the linkage guide rails; a transmission groove is formed in the other side of the interior of the linkage guide rail, an ISOFIX connector is movably connected to the interior of the rectangular telescopic groove, a circular groove is formed in one side of the interior of the ISOFIX connector, and a screw rod is rotationally connected to the interior of the circular groove.

Description

Technical Field

[0001] The utility model relates to the field of child safety seats, in particular to a child safety seat connection structure. Background Art

[0002] A car child safety seat, also known as a child restraint system (CRS), is a seat designed for children of different ages (or weights) and installed in a car to effectively improve the safety of children riding in a car. Today's vehicles are equipped with a U-shaped hook with both ends fixed on a flat plate member, called an ISOFIX interface, which makes the connection between the child safety seat and the car more secure and reliable, and makes the installation of the child safety seat simple and quick.

[0003] At present, the domestic child safety seat market mostly adopts the reliable ISOFIX structure connection. There is no linkage between the two ISOFIX connectors independently installed on both sides of the child safety seat, so the two ISOFIX connectors need to be operated separately when adjusting the extension length, which is more troublesome. Therefore, the market urgently needs to develop a child safety seat connection structure to help people solve the existing problems. Utility Model Content

[0004] The utility model aims to provide a child safety seat connection structure to solve the problem in the above-mentioned background technology that no linkage is set between the two ISOFIX connectors independently installed on both sides of the child safety seat, so that the two ISOFIX connectors need to be operated separately when adjusting the extension length, which is relatively troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a child safety seat connection structure, including a fixed frame, a connecting rod is fixedly connected to the middle part of the fixed frame, a transmission shaft is rotatably connected to the inside of the connecting rod, support rods are fixedly connected to both sides of the middle part of the fixed frame, one side of the front and rear ends of the fixed frame are fixedly connected to linkage guide rails, a rectangular telescopic groove is provided on one side of the linkage guide rail, a transmission groove is provided on the other side of the linkage guide rail, an ISOFIX connector is movably connected to the inside of the rectangular telescopic groove, a circular groove is provided on one side of the ISOFIX connector, and a screw is rotatably connected to the inside of the circular groove.

[0006] Preferably, an internal threaded portion is fixedly connected to one side of the circular groove inside the ISOFIX connector, and a limiting ring is fixedly connected to one side of the internal threaded portion inside the circular groove.

[0007] Preferably, an annular limiting groove is provided in the middle of the rectangular telescopic groove and the transmission groove inside the linkage guide rail.

[0008] Preferably, one end of the screw is fixedly connected to a stabilizing ring inside the circular groove, and the other end of the screw passes through the middle of the limiting ring and is threadedly connected to the internal threaded part.

[0009] Preferably, one end of the screw rod passes through the internal threaded portion and through the middle of the annular limiting groove, extends to the inside of the transmission groove and is fixedly connected with a first conical tooth, and the screw rod is fixedly connected with an annular limiting portion inside the annular limiting groove.

[0010] Preferably, the front and rear ends of the transmission shaft pass through the front and rear ends of the fixing frame and extend into two transmission grooves respectively, and the front and rear ends of the transmission shaft are fixedly connected with second conical teeth in the two transmission grooves respectively.

[0011] Preferably, the second conical teeth are meshedly connected with the tooth portion of the first conical teeth, and the front end of the transmission shaft passes through the linkage guide rail, extends to the outside and is fixedly connected with a knob.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, through the setting of the transmission shaft, the front and rear ends of the transmission shaft pass through the front and rear ends of the fixing frame and extend into the two transmission grooves respectively. The transmission shaft is driven to rotate by rotating the knob, and the transmission shaft drives the two screws to rotate at the same time. The other end of the screw passes through the middle part of the limit ring and is threadedly connected with the internal threaded part. The rotation of the screw pushes the ISOFIX connector to extend outward in the rectangular telescopic groove, thereby realizing the synchronous adjustment of the two ISOFIX connectors in the telescopic linkage guide rail.

[0014] 2. In the utility model, through the provision of the annular limiting portion, the screw is fixedly connected with the annular limiting portion inside the annular limiting groove, and the stability of the screw rotation is ensured by the annular limiting portion. At the same time, the force points between the screw and the linkage guide rail are increased, so that when the ISOFIX connector pulls the screw, the pulling force is transmitted to the linkage guide rail, and the pulling force is transmitted to the fixing frame through the two linkage guide rails.

[0015] 3. In the utility model, through the setting of the stabilizing ring, one end of the screw is fixedly connected with the stabilizing ring inside the circular groove. The stabilizing ring rotates along with the screw to ensure the stability of the screw rotation. At the same time, the limiting ring contacts the stabilizing ring to prevent the screw from slipping out of the internal threaded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a child safety seat connection structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is a top sectional view of the utility model;

[0019] Figure 4 It is a main cross-sectional view of the linkage guide rail of the utility model;

[0020] Figure 5 It is an enlarged view of the detail A of the present utility model.

[0021] In the figure: 1, fixing frame; 101, connecting rod; 102, supporting rod; 2, linkage guide rail; 201, rectangular telescopic slot; 202, transmission slot; 203, annular limit slot; 3, ISOFIX connector; 301, circular slot; 302, internal threaded portion; 303, limit ring; 4, screw; 401, stabilizing ring; 402, annular limit portion; 403, first conical teeth; 5, transmission shaft; 501, second conical teeth; 502, knob. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-5 The utility model provides an embodiment: a child safety seat connection structure, including a fixing frame 1, a connecting rod 101 is fixedly connected to the middle part of the fixing frame 1, a transmission shaft 5 is rotatably connected to the connecting rod 101, support rods 102 are fixedly connected to both sides of the middle part of the fixing frame 1, one side of the front and rear ends of the fixing frame 1 is fixedly connected to a linkage guide rail 2, a rectangular telescopic groove 201 is provided on one side of the linkage guide rail 2, a transmission groove 202 is provided on the other side of the linkage guide rail 2, an ISOFIX connector 3 is movably connected to the rectangular telescopic groove 201, a circular groove 301 is provided on one side of the ISOFIX connector 3, and a screw 4 is rotatably connected to the circular groove 301.

[0024] Furthermore, an internal thread portion 302 is fixedly connected to one side of the circular groove 301 of the ISOFIX connector 3 , and a limiting ring 303 is fixedly connected to one side of the internal thread portion 302 in the circular groove 301 .

[0025] Furthermore, an annular limiting groove 203 is provided in the middle of the linkage guide rail 2 between the rectangular telescopic groove 201 and the transmission groove 202 .

[0026] Furthermore, one end of the screw rod 4 is fixedly connected with a stabilizing ring 401 inside the circular groove 301. The stabilizing ring 401 rotates along with the screw rod 4 to ensure the stability of the rotation of the screw rod 4. At the same time, the limiting ring 303 contacts the stabilizing ring 401 to prevent the screw rod 4 from slipping out of the internal threaded portion 302. The other end of the screw rod 4 passes through the middle of the limiting ring 303 and is threadedly connected with the internal threaded portion 302. The rotation of the screw rod 4 pushes the ISOFIX connector 3 to extend outward from the rectangular telescopic groove 201.

[0027] Furthermore, one end of the screw rod 4 passes through the internal threaded portion 302 and passes through the middle of the annular limiting groove 203 to extend to the inside of the transmission groove 202 and is fixedly connected to a first conical tooth 403. The screw rod 4 is fixedly connected to an annular limiting portion 402 inside the annular limiting groove 203. The annular limiting portion 402 ensures the stability of the rotation of the screw rod 4, and at the same time increases the force points between the screw rod 4 and the linkage guide rail 2, so that when the ISOFIX connector 3 pulls the screw rod 4, the pulling force is transmitted to the linkage guide rail 2, and the pulling force is transmitted to the fixed frame 1 through the two linkage guide rails 2.

[0028] Furthermore, the front and rear ends of the transmission shaft 5 pass through the front and rear ends of the fixing frame 1 and extend into the two transmission grooves 202 respectively. The front and rear ends of the transmission shaft 5 are fixedly connected with second conical teeth 501 in the two transmission grooves 202 respectively.

[0029] Furthermore, the second conical teeth 501 are meshedly connected with the teeth of the first conical teeth 403, and the front end of the transmission shaft 5 extends through the linkage guide rail 2 to the outside and is fixedly connected with a knob 502. By rotating the knob 502, the transmission shaft 5 is driven to rotate, and the transmission shaft 5 simultaneously drives the two screws 4 to rotate, thereby realizing the synchronous adjustment of the two ISOFIX connectors 3 in the extension and retraction of the linkage guide rail 2.

[0030] Working principle: When in use, the transmission shaft 5 is driven to rotate by rotating the knob 502, and the transmission shaft 5 drives the two screws 4 to rotate at the same time. The other end of the screw 4 passes through the middle of the limiting ring 303 and is threadedly connected with the internal threaded portion 302. One end of the screw 4 passes through the internal threaded portion 302 and passes through the middle of the annular limiting groove 203 to extend to the inside of the transmission groove 202 and is fixedly connected with the first conical tooth 403. The screw 4 is fixedly connected with the annular limiting portion 402 inside the annular limiting groove 203. The annular limiting portion 402 ensures the stability of the rotation of the screw 4, and at the same time increases the force point between the screw 4 and the linkage guide rail 2, so that the ISOFIX connector 3 pulls the screw The ISOFIX connector 3 is rotated to push the ISOFIX connector 3 to extend outward in the rectangular expansion slot 201, so as to realize the synchronous adjustment of the expansion and contraction of the two ISOFIX connectors 3 in the linkage guide rail 2. The screw 4 is fixedly connected with an annular limiting portion 402 inside the annular limiting slot 203. The stability of the rotation of the screw 4 is ensured by the annular limiting portion 402, and the force points between the screw 4 and the linkage guide rail 2 are increased at the same time, so that when the ISOFIX connector 3 pulls the screw 4, the tension is transmitted to the linkage guide rail 2, and the tension is transmitted to the fixing frame 1 through the two linkage guide rails 2.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A child safety seat connection structure, comprising a fixing frame (1), characterized in that: A connecting rod (101) is fixedly connected to the middle of the fixing frame (1), a transmission shaft (5) is rotatably connected to the connecting rod (101), support rods (102) are fixedly connected to both sides of the middle of the fixing frame (1), one side of the front and rear ends of the fixing frame (1) is fixedly connected to a linkage guide rail (2), a rectangular telescopic groove (201) is provided on one side of the linkage guide rail (2), a transmission groove (202) is provided on the other side of the linkage guide rail (2), an ISOFIX connector (3) is movably connected to the rectangular telescopic groove (201), a circular groove (301) is provided on one side of the ISOFIX connector (3), and a screw rod (4) is rotatably connected to the circular groove (301).

2. A child safety seat connection structure according to claim 1, characterized in that: An internal threaded portion (302) is fixedly connected to one side of the circular groove (301) of the ISOFIX connector (3), and a limiting ring (303) is fixedly connected to one side of the internal threaded portion (302) in the circular groove (301).

3. A child safety seat connection structure according to claim 2, characterized in that: An annular limiting groove (203) is provided inside the linkage guide rail (2) at the middle portion between the rectangular telescopic groove (201) and the transmission groove (202).

4. A child safety seat connection structure according to claim 3, characterized in that: One end of the screw rod (4) is fixedly connected to a stabilizing ring (401) inside the circular groove (301), and the other end of the screw rod (4) passes through the middle of the limiting ring (303) and is threadedly connected to the internal threaded portion (302).

5. A child safety seat connection structure according to claim 4, characterized in that: One end of the screw rod (4) passes through the internal threaded portion (302) and the middle portion of the annular limiting groove (203) and extends to the inside of the transmission groove (202) and is fixedly connected to a first conical tooth (403). The screw rod (4) is fixedly connected to an annular limiting portion (402) inside the annular limiting groove (203).

6. A child safety seat connection structure according to claim 5, characterized in that: The front and rear ends of the transmission shaft (5) pass through the front and rear ends of the fixing frame (1) and extend into two transmission grooves (202) respectively. The front and rear ends of the transmission shaft (5) are fixedly connected with second conical teeth (501) in the two transmission grooves (202) respectively.

7. A child safety seat connection structure according to claim 6, characterized in that: The second conical teeth (501) are meshedly connected with the teeth of the first conical teeth (403); the front end of the transmission shaft (5) passes through the linkage guide rail (2) and extends to the outside and is fixedly connected with a knob (502).

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