ISOFIX connector

Abstract

The utility model relates to an ISOFIX connector which comprises a connector shell and a connecting assembly sliding in an inner cavity of the connector shell, the connector shell is provided with a gear hole, the connecting assembly comprises an assembly shell and a locking piece stretching out and drawing back in the assembly shell, the locking piece has a locking state and an unlocking state, when the locking piece is in the locking state, the locking piece is inserted into the gear hole, and when the locking piece is in the unlocking state, the locking piece is inserted into the gear hole. When the locking piece is in an unlocking state, the locking piece retreats from the gear hole, the sectional area of the connecting assembly is smaller than that of the connector shell, the end of the connector shell is folded inwards to be provided with a limiting flange, the limiting flange abuts against the peripheral side wall of the connector shell, and a cavity is formed between the inner wall of the connector shell and the outer wall of the connecting assembly. When the connecting assembly slides in the connector shell, the locking piece can be located in the cavity and does not abut against the inner wall of the connector shell, abrasion is not prone to being generated, and the good locking capacity is always achieved.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to an ISOFIX connector. Background Art

[0002] ISOFIX connector is a connection device between the child restraint system and the vehicle, used to fix the child safety seat. ISOFIX connector is a quick and simple connection structure that can firmly connect the child car safety seat to the car, improving the ease and safety of installation. Using ISOFIX connector can reduce the risk of incorrect installation and provide safer child protection when riding in a car.

[0003] The ISOFIX connector usually includes a shell connected to the bottom of the child seat, a telescopic component that telescopes and slides inside the shell and is connected to the car seat, and a button component arranged on the shell, which can drive the telescopic component to slide inside the shell. A locking hole is provided on the shell, and a locking piece is provided inside the telescopic component, which can extend into the inner cavity of the telescopic component and lock into the locking hole. The button component can unlock the locking piece. When the button component unlocks the locking piece and drives the telescopic component to slide inside the shell, the side wall of the telescopic component on the side where the locking piece extends is at a smaller distance from the inner wall of the shell, and friction is easily generated between the locking piece and the inner wall of the shell, thereby causing wear of the locking piece, and the locking ability of the locking piece is weakened. Utility Model Content

[0004] In order to solve the problem that friction is easily generated between the locking piece and the inner wall of the housing, thereby causing wear of the locking piece, the present application provides an ISOFIX connector.

[0005] The present application provides an ISOFIX connector, which adopts the following technical solution:

[0006] An ISOFIX connector comprises a connector shell and a connection component that slides in an inner cavity of the connector shell, the connector shell being provided with a gear hole, the connection component comprising a component shell and a locking piece that is telescopically arranged in the component shell, the locking piece having a locked state and an unlocked state, when the locking piece is in the locked state, the locking piece is inserted into the gear hole, and when the locking piece is in the unlocked state, the locking piece withdraws from the gear hole, and is characterized in that the cross-sectional area of ​​the connection component is smaller than the cross-sectional area of ​​the connector shell, the end of the connector shell is folded inwardly to have a limiting flange, the limiting flange abuts against the peripheral side wall of the connector shell, and a cavity is formed between the inner wall of the connector shell and the outer wall of the connection component.

[0007] By adopting the above technical solution, since the cross-sectional area of ​​the connecting component is smaller than the cross-sectional area of ​​the connector shell, and under the support of the limiting flange, there is always a cavity between the outer wall of the connecting component and the inner wall of the connector shell. When the locking piece switches from the locked state to the unlocked state and the connecting component slides in the connector shell, the end of the locking piece can be in the cavity, and the end of the locking piece is not easy to abut against the inner wall of the connector shell when sliding in the cavity, thereby avoiding friction between the locking piece and the connector shell to cause wear of the locking piece, so that the locking piece always has good locking ability.

[0008] Optionally, the connector housing includes a housing body and a limiting sleeve disposed at an end of the housing body, and the limiting flange is located on the limiting sleeve.

[0009] By adopting the above technical solution, the limiting flange is set on the limiting sleeve, and the limiting sleeve can be separated from the shell body. When the connecting component needs to be disassembled and assembled on the connector shell, the limiting sleeve is first removed from the shell body, so that the connecting component is easier to install and the connecting component is not easily unable to be removed from the connector shell due to the limiting effect of the limiting flange.

[0010] Optionally, the limiting sleeve is sleeved on the outer side of the shell body.

[0011] By adopting the above technical solution, compared with the installation method in which the limiting sleeve is directly inserted into the shell body, when the limiting sleeve is installed on the outside of the shell body in a sleeve manner, the side wall of the limiting sleeve is not easy to interfere with the sliding of the connecting component in the connector shell.

[0012] Optionally, a support member is provided at the end of the connection assembly located in the inner cavity of the connector shell, and the support member includes a support portion, the cross-section of the support portion is adapted to the cross-section of the connector shell, and the peripheral side wall of the support portion abuts against the inner wall of the connector shell.

[0013] By adopting the above technical solution, when the connecting component slides in the connector housing, one end of the connecting component abuts against the inner wall of the connector housing through the support member, and the limiting flange may also support the connecting component. The connecting component has two supporting points, so that the connecting component can always slide horizontally in the connector housing, reducing the risk of getting stuck due to tilting.

[0014] Optionally, a plurality of grooves are provided at the edge of the support portion.

[0015] By adopting the above technical solution, the edge of the support part has less contact surface with the inner wall of the connector housing due to the presence of the groove, thereby reducing the friction between the support part and the connector housing and making the connecting component slide more smoothly in the connector housing.

[0016] Optionally, the support member further includes an inserting portion, and the inserting portion is plug-fitted with the component housing.

[0017] By adopting the above technical solution, the support member is installed on the component housing by plugging, and it is relatively easy to assemble and disassemble.

[0018] Optionally, the plug-in portion is provided with a clamping block on the abutting surface with the inner wall of the component housing, the inner wall of the component housing is provided with a clamping hole, and the clamping block is clamped in the clamping hole.

[0019] By adopting the above technical solution, the support member further improves the connection firmness of the support member on the component housing due to the limiting effect of the clamping block and the clamping hole. When the connecting component slides in the connector housing, the support member is not easy to fall off from the component housing due to friction.

[0020] Optionally, the snap-in hole passes through inner and outer surfaces of the component housing.

[0021] By adopting the above technical solution, when the support member needs to be removed from the component housing, force is applied to the clamping block through the clamping hole, so that the clamping block is withdrawn from the clamping hole, so that the support member can be removed from the component housing more easily.

[0022] Optionally, there are a plurality of the gear holes, and the gear holes are arranged at intervals along the length direction of the connector housing.

[0023] By adopting the above technical solution, the connecting component can be locked in any gear hole through the locking piece, and the user can arbitrarily adjust the length of the connecting component extending from the connector housing, which is more convenient.

[0024] Optionally, the shell body includes an upper shell and a lower shell, the upper shell and the lower shell are snap-fitted together, and both the upper shell and the lower shell are provided with a gear hole.

[0025] By adopting the above technical solution, there is no need to consider the installation direction when the connecting component is installed on the connector housing. The locking piece can be locked on the upper shell or the lower shell, which is more convenient. In addition, since the upper shell and the lower shell are separately arranged, the connecting component can be directly placed in the connector housing when installed in the connector housing, which is more convenient to install.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. An ISOFIX connector, by providing a limit flange at the end of the connector housing, the limit flange can provide limit support for the connection component, so that there is always a cavity between the outer wall of the connection component and the inner wall of the connector housing, the locking piece can slide in the cavity, the locking piece is not easy to rub against the inner wall of the connector housing, thereby reducing the wear of the locking piece;

[0028] 2. By arranging a support member at one end of the connection component, the support member can support the inner wall of the connector housing, so that the connection component has two support points, and the connection component can always slide horizontally in the connector housing, and is not prone to tilting and getting stuck;

[0029] 3. By opening a plurality of gear holes on the connector housing, the connection component can be locked in any gear hole through a locking piece, and the user can adjust the length of the connection component extending from the connector housing at will, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an ISOFIX connector according to an embodiment of the present application.

[0031] Figure 2 It is a schematic structural diagram of a connector housing according to an embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the structure of the connection component of an embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the structure of the support member of an embodiment of the present application.

[0034] Figure 5 It is a cross-sectional view of an ISOFIX connector according to an embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. Connector shell; 11. Shell body; 111. Upper shell; 112. Lower shell; 113. Sliding hole; 114. Gear hole; 12. Limiting sleeve; 121. Through hole; 122. Limiting flange; 2. Connecting assembly; 21. Assembly shell; 211. Locking hole; 212. Snap-in hole; 22. Locking sheet; 23. Support member; 231. Support portion; 2311. Groove; 232. Plug-in portion; 233. Snap-in block; 2331. Guide ramp; 3. Button assembly; 4. Cavity. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] An embodiment of the present application discloses an ISOFIX connector.

[0038] Reference Figure 1 An ISOFIX connector includes a connector housing 1, a connection component 2 and a button component 3. The connector housing 1 is used to connect and fix with a child seat. The connection component 2 is used to connect with a rigid connection part on a car seat, so as to install the child seat on the car seat. The connection component 2 is horizontally slidably installed in the inner cavity of the connector housing 1 and can extend from one end of the connector housing 1. The button component 3 is arranged on the connection component 2 and is used to drive the connection component 2 to slide on the connector housing 1.

[0039] Reference Figure 1 and Figure 2 The connector housing 1 includes a housing body 11 and a limiting sleeve 12. The housing body 11 is a hollow square tube with two ends open. The housing body 11 includes an upper shell 111 and a lower shell 112. The upper shell 111 is in a sheet shape, and the cross section of the lower shell 112 is U-shaped. The upper shell 111 and the lower shell 112 are snap-fitted. By setting the housing body 11 separately, the connection assembly 2 can be easily and directly installed into the connector housing 1.

[0040] Reference Figure 1 and Figure 2 Both sides of the lower shell 112 are provided with sliding holes 113 for the button assembly 3 to slide. The sliding holes 113 are long strip holes and penetrate the inner cavity of the shell body 11. The length of the sliding hole 113 is the distance that the connecting assembly 2 can slide in the connector shell 1.

[0041] Reference Figure 1 and Figure 2 The limiting sleeve 12 is sleeved on the end of the shell body 11, thereby covering the end opening of the shell body 11. A through hole 121 is provided at the end of the limiting sleeve 12 away from the shell body 11. The size of the through hole 121 is smaller than the cross-sectional size of the limiting sleeve, so that the end of the limiting sleeve away from the shell body 11 forms an inwardly folded limiting flange 122. The size of the through hole 121 is smaller than the cross-sectional size of the inner cavity of the shell body 11.

[0042] Reference Figure 1 and Figure 3 The connecting component 2 includes a component housing 21, a locking piece 22 and a support member 23. The component housing 21 is a square tube with one end open. A locking hole 211 is provided on the side wall of the component housing 21, and the locking piece 22 is slidably arranged in the inner cavity of the component housing 21 and can extend from the locking hole 211.

[0043] Reference Figure 3 and Figure 4The support member 23 is arranged at one end of the opening of the component housing 21, and includes a support portion 231 and a plug-in portion 232. The support portion 231 is a square sheet, the cross-sectional size of the support portion 231 is larger than the cross-sectional size of the component housing 21, and the support portion 231 is located on the outside of the component housing 21. There are two plug-in portions 232, which are integrally and symmetrically connected to one side of the support portion 231 facing the component housing 21, and the plug-in portion 232 is plugged into the inner cavity of the component housing 21. The plug-in portion 232 has a snap-in block 233 on the side wall abutting against the inner wall of the component housing 21, and the side wall of the component housing 21 is provided with a snap-in hole 212 corresponding to the snap-in block 233 and penetrating the inner and outer surfaces, and the snap-in block 233 can be snapped into the snap-in hole 212. The snap-in block 233 has a guide slope 2331, and the guide slope 2331 faces the component housing 21.

[0044] Reference Figure 3 and Figure 4 When the support member 23 is installed on the component housing 21, the edge of the end opening of the component housing 21 can slide along the guide slope 2331 and drive the two plug-in parts 232 to deform in opposite directions, so that the plug-in part 232 is inserted into the inner cavity of the component housing 21 and the clamping block 233 is clamped into the clamping hole 212. After the installation is completed, due to the limitation of the clamping block 233 and the clamping hole 212, the support member 23 is not easy to fall off from the component housing 21. When the support member 23 needs to be removed, the clamping block 233 is withdrawn from the clamping hole 212, and then the support member 23 is pulled out.

[0045] Reference Figure 5 When the connection component 2 is slidably installed on the connector housing 1, the component housing 21 is penetrated by the through hole 121 of the limiting sleeve 12, and the end of the component housing 21 away from the support member 23 always extends out of the connector housing 1, and the support member 23 is always located in the inner cavity of the connector housing 1. The cross-sectional size of the component housing 21 is adapted to the size of the through hole 121, and the limiting flange 122 always abuts against the outer peripheral wall of the component housing 21. The support member 23 is adapted to the inner cavity of the connector housing 1, and the support member 23 always abuts against and supports the inner wall of the connector housing 1. Due to the supporting effect of the support member 23 and the inner wall of the connector housing 1 and the abutment effect of the component housing 21 and the limiting flange 122, when the connection component 2 slides in the connector housing 1, there is always a cavity 4 between the outer wall of the component housing 21 and the inner wall of the connector housing 1.

[0046] Reference Figure 2 and Figure 3The housing body 11 is provided with a plurality of gear holes 114, which are arranged at intervals along the length direction of the housing body 11, and the upper housing 111 and the lower housing 112 are both provided with gear holes 114, and the locking piece 22 can be inserted into and locked in the gear hole 114, so that the connecting assembly 2 is locked to the connector housing 1. The locking piece 22 has a locked state and an unlocked state. When the locking piece 22 is in the locked state, the locking piece 22 is inserted into the gear hole 114, and when the locking piece 22 is in the unlocked state, the locking piece 22 is withdrawn from the gear hole 114, and the locking piece 22 does not abut against the inner wall of the connector housing 1.

[0047] Reference Figure 4 and Figure 5 When the connection assembly 2 is unlocked and slides on the connector housing 1, the locking piece 22 can move in the cavity 4, and the locking piece 22 is not easy to rub against the connector housing 1 and cause wear. In addition, the support member 23 is provided with a plurality of grooves 2311 on the peripheral side of the support portion 231, so that the contact surface between the support portion 231 and the inner wall of the connector housing 1 is small, and the friction between the support portion 231 and the connector housing 1 is small.

[0048] Combination Figures 1 to 5 The implementation principle of an ISOFIX connector in the embodiment of the present application is as follows: a limiting sleeve 12 is provided at the end of the shell body 11, and the limiting sleeve 12 can support the component housing 21; a support member 23 is provided at the end of the component housing 21, and the support member 23 can support the inner cavity of the connector housing 1; since the cross-sectional size of the component housing 21 is smaller than the cross-sectional size of the shell body 11, and in the case of support at both ends, a cavity 4 can be formed between the connecting component 2 and the connector housing 1. When the locking piece 22 is in the unlocked state, the locking piece 22 can be retracted into the cavity 4. When the connecting component 2 slides in the connector housing 1, the locking piece 22 does not abut against the inner wall of the connector housing 1, and is not easy to be worn.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An ISOFIX connector, comprising a connector housing (1) and a connecting component (2) slidingly moved in an inner cavity of the connector housing (1), the connector housing (1) being provided with a shift hole (114), the connecting component (2) comprising a component housing (21) and a locking piece (22) telescopically attached to the component housing (21), the locking piece (22) having a locked state and an unlocked state, when the locking piece (22) is in the locked state, the locking piece (22) is inserted into the shift hole (114), and when the locking piece (22) is in the unlocked state, the locking piece (22) is withdrawn from the shift hole (114), characterized in that: The cross-sectional area of ​​the connection component (2) is smaller than the cross-sectional area of ​​the connector housing (1); the end of the connector housing (1) is folded inwardly to have a limiting flange (122); the limiting flange (122) abuts against the peripheral side wall of the connector housing (1); and a cavity (4) is formed between the inner wall of the connector housing (1) and the outer wall of the connection component (2).

2. An ISOFIX connector according to claim 1, characterized in that: The connector housing (1) comprises a housing body (11) and a limiting sleeve (12) arranged at the end of the housing body (11), and the limiting flange (122) is located on the limiting sleeve (12).

3. An ISOFIX connector according to claim 2, characterized in that: The limiting sleeve (12) is sleeved on the outside of the shell body (11).

4. The ISOFIX connector according to claim 2, characterized in that: A support member (23) is provided at an end of the connection component (2) located in the inner cavity of the connector housing (1); the support member (23) comprises a support portion (231); the cross section of the support portion (231) is adapted to the cross section of the connector housing (1); and the peripheral side wall of the support portion (231) abuts against the inner wall of the connector housing (1).

5. An ISOFIX connector according to claim 4, characterized in that: A plurality of grooves (2311) are provided at the edge of the support portion (231).

6. An ISOFIX connector according to claim 4, characterized in that: The support member (23) further comprises an inserting portion (232), and the inserting portion (232) is inserted and matched with the component housing (21).

7. An ISOFIX connector according to claim 6, characterized in that: The plug-in portion (232) is provided with a clamping block (233) on the surface abutting against the inner wall of the component housing (21); the inner wall of the component housing (21) is provided with a clamping hole (212), and the clamping block (233) is clamped in the clamping hole (212).

8. An ISOFIX connector according to claim 7, characterized in that: The clamping hole (212) passes through the inner and outer surfaces of the component housing (21).

9. The ISOFIX connector according to claim 2, characterized in that: There are a plurality of the gear holes (114), and the gear holes (114) are arranged at intervals along the length direction of the connector housing (1).

10. An ISOFIX connector according to claim 2, characterized in that: The housing body (11) comprises an upper housing (111) and a lower housing (112); the upper housing (111) and the lower housing (112) are snap-fitted together; and both the upper housing (111) and the lower housing (112) are provided with a gear hole (114).

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