ISOFIX connector for child seat

Abstract

The utility model relates to an ISOFIX connector used for a child seat, the ISOFIX connector comprises a connecting assembly, the connecting assembly comprises an assembly shell, a locking piece and a reset spring, the locking piece and the reset spring are arranged in the assembly shell, the assembly shell is provided with a locking hole, the locking piece is provided with a spring bolt right opposite to the locking hole, and the reset spring is arranged in the locking hole. The reset spring is perpendicular to the locking piece and drives the spring bolt to tend to extend out of the locking hole all the time, a mounting hole is formed in the assembly shell, the width of the mounting hole is larger than the outer diameter of the reset spring, and the mounting hole is right opposite to the reset spring. The assembly shell is provided with a pressing cover in the mounting hole, and the pressing cover presses the reset spring on the locking piece. By means of the structure, the reset spring can be installed into the inner cavity of the assembly shell from the outer side of the assembly shell, and the installation process is simple.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to an ISOFIX connector for a child seat. 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 Chinese utility model patent with the authorization announcement number CN208324968U discloses an improved ISOFIX connector for child safety seats, including a housing, an ISOFIX connection component and a button component. The ISOFIX connection component includes two mutually cooperating ISOFIX connection component bodies, a ratchet plate, a locking plate, a ratchet spring, a locking plate, a reset spring, etc. The locking plate connects the locking plate and the ratchet spring. Under the tension of the ratchet spring, the locking plate can drive the locking plate to unlock. The reset spring cooperates with the locking plate to drive the locking plate to reset to the locked state.

[0004] When assembling the ISOFIX connection assembly, all parts are first installed in one half of the ISOFIX connection assembly, and then the two ISOFIX connection assemblies are limited and covered. When installing the reset spring, due to the elastic force of the reset spring and the pawl tension spring, the parts have a force on each other, and the lack of the other half of the ISOFIX connection assembly to limit the parts makes the reset spring easy to tilt and twist in the body of the ISOFIX connection assembly, and it is unable to exert force on the locking piece well. The installer needs to constantly adjust the reset spring, and the installation process of the reset spring and the assembly process of the ISOFIX connection assembly are relatively cumbersome. Utility Model Content

[0005] In order to solve the problem that the installation process of the return spring is relatively complicated, the present application provides an ISOFIX connector for a child seat.

[0006] The present application provides an ISOFIX connector for a child seat, which adopts the following technical solution:

[0007] An ISOFIX connector for a child seat comprises a connecting component, the connecting component comprising a component housing, a locking piece arranged in the component housing, and a reset spring, the component housing being provided with a locking hole, the locking piece having a locking tongue directly opposite to the locking hole, the reset spring being arranged perpendicular to the locking piece and driving the locking tongue to always have a tendency to extend out of the locking hole, the component housing being provided with a mounting hole, the width of the mounting hole being greater than the outer diameter of the reset spring, and the mounting hole directly opposite to the reset spring; the component housing being provided with a pressing cover on the mounting hole, the pressing cover pressing the reset spring against the locking piece.

[0008] By adopting the above technical solution, when installing the connection component, the locking piece is first limitedly installed in one half of the component housing, and then the parts are limited in the component housing through the other half of the component housing, so that it is not easy to shake. Finally, the reset spring is installed into the component housing through the installation hole, and the reset spring is pressed against the locking piece through the clamping cover. Compared with the installation method of first installing the reset spring in the component housing and then assembling the component housing, the installation process of the above method of installing the reset spring into the component housing from the outside is simpler. Since the parts in the component housing are locked in advance by the component housing, the reset spring is not easy to tilt and twist when it is installed into the component housing from the installation hole, and the reset spring can exert a better force on the locking piece.

[0009] Optionally, limiting blocks are symmetrically arranged on the inner wall of the component housing and on both side walls of the locking plate, the side walls of the locking plate abut against the limiting blocks, and a sliding channel for the locking plate to slide is formed between the two limiting blocks, and the direction of the sliding channel is the same as the width direction of the component housing and points to the locking hole.

[0010] By adopting the above technical solution, the locking piece is limited by the limit block, so that the locking piece can only move in a fixed direction, and the moving direction of the locking piece is colinear with the force direction of the reset spring, so that the reset spring always maintains a vertical state with the locking piece after being installed into the component housing from the mounting hole, the reset spring is not easy to tilt, and the reset spring can always apply vertical force to the locking piece.

[0011] Optionally, a positioning block is provided at one end of the locking sheet away from the locking hole, and the return spring is sleeved on the outer side of the positioning block.

[0012] By adopting the above technical solution, when the return spring is installed into the component housing from the mounting hole, the return spring can be sleeved on the positioning block, and when the locking piece moves, the return spring is not easily separated from the locking piece; and the positioning block limits the installation direction of the return spring on the locking piece, and the return spring is always vertically abutted against the locking piece. The return spring can apply vertical force to the locking piece, so that the locking effect of the locking piece is better.

[0013] Optionally, the connecting component also includes a locking plate, which is arranged in the component housing along the length direction of the component housing; there are two locking plates, which are symmetrically arranged on both sides of the locking plate; and the return spring is simultaneously mounted on the outer sides of the two positioning blocks.

[0014] By adopting the above technical solution, two locking plates are provided and arranged symmetrically, so that the locking effect is better after the lock tongue extends from the locking hole; and as the number of locking plates increases, the thickness of the positioning block increases accordingly, making the return spring sleeve on the positioning block more firmly and not easy to fall off the locking plate.

[0015] Optionally, the mounting hole is directly opposite to the locking hole.

[0016] By adopting the above technical solution, since the mounting hole is directly opposite to the reset spring, when the mounting hole is also directly opposite to the locking hole, the reset spring is directly opposite to the locking hole, and the reset spring can always vertically drive the locking piece to extend out of the locking hole.

[0017] Optionally, the clamping cover is provided with a positioning groove, the outer diameter of the return spring is matched with the positioning groove, and one end of the return spring is inserted into the positioning groove.

[0018] By adopting the above technical solution, when the return spring is installed into the component housing through the mounting hole, one end of the return spring can be inserted into the positioning groove of the clamping cover, so that the return spring is further limited. Since both ends of the return spring are limited, the return spring is always arranged vertically and is not easy to fall off during the movement of the locking piece.

[0019] Optionally, the pressing cover is symmetrically provided with elastic members on both sides of the positioning groove, and the two elastic members press the two sides of the return spring.

[0020] By adopting the above technical solution, the return spring is compressed between the two elastic members, so that the return spring is not easily tilted when installed in the component housing, and the return spring can always apply vertical force to the locking piece.

[0021] Optionally, the elastic member has a guide bevel on one side facing the return spring, and the guide bevels of the two elastic members are arranged in opposite directions. When the clamping cover is inserted into the mounting hole, the edge of the mounting hole slides along the guide bevel and drives the elastic member to deform.

[0022] By adopting the above technical solution, when the clamping cover is inserted into the mounting hole, the edge of the mounting hole moves along the guide slope and drives the two elastic parts to deform and approach in opposite directions, so that the clamping cover can be easily inserted into the mounting hole. After the clamping cover is installed into the mounting hole, the elastic part returns to its original state, making it difficult for the clamping cover to fall out of the mounting hole.

[0023] Optionally, the elastic member has an abutment portion, and the return spring drives the abutment portion to be pressed against the inner wall of the component housing.

[0024] By adopting the above technical solution, when the clamping cover is installed in the mounting hole, one end of the return spring can press the clamping cover against the inner wall of the component housing, further making it difficult for the clamping cover to fall out of the mounting hole, and the clamping cover is installed more firmly.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. An ISOFIX connector for a child seat, wherein a mounting hole is provided on a component housing, and a return spring can be directly installed from the outside of the component housing into the inside of the component housing through the mounting hole, and the return spring is pressed into the component housing by a pressing cover. The installation method of the return spring is relatively simple, and the return spring is not easy to tilt or twist after installation;

[0027] 2. By arranging a positioning block on the locking piece and increasing the number of locking pieces to increase the thickness of the positioning block, the reset spring is more firmly sleeved on the positioning hole, the reset spring is not easy to fall off the locking piece, and can always apply vertical force to the locking piece;

[0028] 3. By opening a positioning groove on the clamping cover and arranging elastic members on both sides of the positioning groove, the manhole cover can further limit the reset spring, so that the reset spring is always perpendicular to the locking piece and is not prone to tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an ISOFIX connector for a child seat according to an embodiment of the present application.

[0030] Figure 2 It is an exploded view of the connection component of an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram of the locking structure of an embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the installation of the locking structure of an embodiment of the present application in the component housing.

[0033] Figure 5 It is a schematic diagram of the structure of the clamping cover of an embodiment of the present application.

[0034] Explanation of the reference numerals: 1. Connector housing; 2. Connecting assembly; 21. Assembly housing; 211. Locking hole; 212. Mounting hole; 213. Front housing; 214. Rear housing; 215. Limiting block; 216. Sliding channel; 217. Limiting column; 22. Locking structure; 221. Locking sheet; 2211. Locking tongue; 2212. Positioning block; 222. Return spring; 23. Locking sheet; 24. Pressing cover; 241. Cover body; 2411. Positioning groove; 242. Elastic member; 2421. Guide ramp; 2422. Abutment portion; 3. Button assembly. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] An embodiment of the present application discloses an ISOFIX connector for a child seat.

[0037] Reference Figure 1 An ISOFIX connector for a child seat comprises a connector housing 1, a connection component 2 and a button component 3. The connector housing 1 is used to connect and fix with the 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.

[0038] Reference Figure 2 The connecting component 2 includes a component housing 21 , a locking structure 22 , a locking sheet 23 and a pressing cover 24 .

[0039] Reference Figure 2 , the component housing 21 is a rectangular strip with a hollow interior. The side wall of the component housing 21 is provided with a locking hole 211, which is a square hole and penetrates the inner cavity of the component housing 21. The side wall of the component housing 21 is also provided with a mounting hole 212, which is a square hole and penetrates the inner cavity of the component housing 21. The locking hole 211 and the mounting hole 212 are respectively located on two different opposite side walls of the component housing 21, and the locking hole 211 is directly opposite to the mounting hole 212.

[0040] Reference Figure 2The component housing 21 is divided into two parts, including a front housing 213 and a rear housing 214, and the front housing 213 and the rear housing 214 are connected by bolts. The locking hole 211 and the mounting hole 212 are both located at the connection between the front housing 213 and the rear housing 214. The inner wall of the component housing 21 is provided with a limit block 215, and the number of the limit blocks 215 is two, and the front housing 213 and the rear housing 214 are respectively provided with two limit blocks 215. The limit blocks 215 are arranged along the width direction of the component housing 21 and point to the locking hole 211, and a sliding channel 216 is formed between two adjacent limit blocks 215, and the sliding channel 216 is directly opposite to the locking hole 211.

[0041] Reference Figure 2 and Figure 3 The locking structure 22 includes a locking piece 221 and a return spring 222. The locking piece 221 is a square block, which is slidably installed in the sliding channel 216. The side walls of the locking piece 221 are both in contact with the limit blocks 215. The two limit blocks 215 limit the locking piece 221 in the sliding channel 216. The locking piece 221 is provided with a locking tongue 2211, which is opposite to the locking hole 211 and can be inserted into the locking hole 211. In this embodiment, the number of the locking pieces 221 is two, and the two locking pieces 221 are respectively arranged in the sliding channel 216 of the front housing 213 and the sliding channel 216 of the rear housing 214.

[0042] Reference Figure 2 and Figure 3 A positioning block 2212 is integrally provided at the end of the locking piece 221 away from the locking hole 211, and a return spring 222 is arranged in the inner cavity of the component housing 21. One end of the return spring 222 abuts against the locking piece 221 and the return spring 222 is sleeved on the outer side of the positioning block 2212. The return spring 222 drives the lock tongue 2211 of the locking piece 221 to always have a tendency to insert into the locking hole 211 and extend out of the locking hole 211.

[0043] Reference Figure 2 and Figure 4 , the arrangement direction of the return spring 222 is consistent with the direction of the sliding channel 216, and the return spring 222 is perpendicular to the locking piece 221, so that the return spring 222 can always apply vertical force to the locking piece 221. Relatively speaking, the return spring 222 can also be subjected to vertical force, and the return spring 222 is not easy to tilt in the component housing 21. In this embodiment, the number of the return spring 222 is one. The positioning blocks 2212 of the two locking pieces 221 cooperate with one return spring 222, and the return spring 222 tightens the two positioning blocks 2212 at the same time, so that the return spring 222 and the locking piece 221 are more firmly connected.

[0044] Reference Figure 2 and Figure 4The return spring 222 is directly opposite to the mounting hole 212, and the outer diameter of the return spring 222 is smaller than the width of the mounting hole 212, so that the return spring 222 can be installed from the outside of the component housing 21 through the mounting hole 212 into the inner cavity of the component housing 21, and the return spring 222 is easier to install in the component housing 21.

[0045] Reference Figure 2 and Figure 4 The locking piece 23 is arranged in the inner cavity of the component housing 21 and is arranged along the length direction of the component housing 21. The inner wall of the component housing 21 is provided with a plurality of limiting columns 217, and the limiting columns 217 penetrate the locking piece 23, so that the locking piece 23 is not easy to tilt when installed in the component housing 21. The locking piece 23 abuts against the limiting block 215, and the two locking pieces 221 are respectively located on both sides of the locking piece 23. The locking piece 23 limits the two locking pieces 221 in the corresponding sliding channels 216, so that the locking piece 221 can always face the locking hole 211.

[0046] Reference Figure 4 and Figure 5 The pressing cover 24 is installed in the mounting hole 212, and the pressing cover 24 includes a cover body 241 and an elastic member 242. The cover body 241 is a square block, which is adapted to the mounting hole 212. A positioning groove 2411 is provided in the cover body 241 on the side facing the reset spring 222, and the positioning groove 2411 is adapted to the reset spring 222. There are two elastic members 242, which are symmetrically arranged on both sides of the positioning groove 2411. The elastic member 242 is C-shaped, and is bent and folded in a direction away from the positioning groove 2411 to form a guiding inclined surface 2421. The guiding inclined surfaces 2421 of the two elastic members 242 are arranged in opposite directions, and the guiding inclined surfaces 2421 are both facing the reset spring 222. The end of the elastic member 242 has an abutting portion 2422, and the distance between the abutting portions 2422 of the two elastic members 242 is greater than the width of the mounting hole 212.

[0047] Reference Figure 4 and Figure 5 When the clamping cover 24 is installed in the mounting hole 212, the edge of the mounting hole 212 can slide along the guide slope 2421 and drive the elastic member 242 to deform in the direction close to the positioning groove 2411, so that the distance between the abutting portions 2422 of the two elastic members 242 is smaller than the width of the mounting hole 212. At this time, the clamping cover 24 can be installed into the mounting hole 212. When the clamping cover 24 is in the mounting hole 212, the elastic member 242 returns to its original state. At this time, the abutting portion 2422 abuts against the inner wall of the component housing 21.

[0048] Reference Figure 4 and Figure 5When the pressing cover 24 is installed in the mounting hole 212, one end of the return spring 222 is inserted into the positioning groove 2411, and the two elastic members 242 are both in contact with the return spring 222, thereby pressing the return spring 222. The two ends of the return spring 222 are respectively limited by the pressing cover 24 and the locking piece 221, so that the return spring 222 can always be vertically arranged on the locking piece 221, and the return spring 222 is not easy to tilt in the component housing 21. In addition, the return spring 222 can press the abutting portion 2422 of the pressing cover 24 against the inner wall of the component housing 21, and the pressing cover 24 is not easy to fall out of the mounting hole 212.

[0049] Combination Figures 1 to 5 The implementation principle of an ISOFIX connector for a child seat in an embodiment of the present application is as follows: by opening a mounting hole 212 on a component housing 21, a return spring 222 can be installed from the outside of the component housing 21 through the mounting hole 212 into the inner cavity of the component housing 21; and a clamping cover 24 is installed in the mounting hole 212, and the clamping cover 24 can press the return spring 222 against the locking piece 221, thereby making it easier to install the return spring 222 on the component housing 21, and the return spring 222 is always perpendicular to the locking piece 221 in the inner cavity of the component housing 21, and is not easy to tilt.

[0050] 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 for a child seat, comprising a connecting component (2), the connecting component (2) comprising a component housing (21), a locking piece (221) arranged in the component housing (21), and a return spring (222), the component housing (21) being provided with a locking hole (211), the locking piece (221) having a locking tongue (2211) facing the locking hole (211), the return spring (222) being arranged perpendicular to the locking piece (221) and driving the locking tongue (2211) to always have a tendency to extend out of the locking hole (211), characterized in that: The component housing (21) is provided with a mounting hole (212), the width of the mounting hole (212) is greater than the outer diameter of the return spring (222), and the mounting hole (212) is directly opposite to the return spring (222); the component housing (21) is provided with a clamping cover (24) on the mounting hole (212), and the clamping cover (24) clamps the return spring (222) against the locking plate (221).

2. An ISOFIX connector for a child seat according to claim 1, characterized in that: Limiting blocks (215) are symmetrically arranged on the inner wall of the component housing (21) and on both side walls of the locking piece (221); the side walls of the locking piece (221) are in contact with the limiting blocks (215); a sliding channel (216) for the locking piece (221) to slide is formed between the two limiting blocks (215); the direction of the sliding channel (216) is the same as the width direction of the component housing (21) and points to the locking hole (211).

3. An ISOFIX connector for a child seat according to claim 2, characterized in that: One end of the locking sheet (221) away from the locking hole (211) is provided with a positioning block (2212), and the return spring (222) is sleeved on the outside of the positioning block (2212).

4. An ISOFIX connector for a child seat according to claim 3, characterized in that: The connecting component (2) further comprises a locking plate (23), wherein the locking plate (23) is arranged inside the component housing (21) along the length direction of the component housing (21); the number of the locking plates (221) is two, and they are symmetrically arranged on both sides of the locking plate (23); and the return spring (222) is simultaneously sleeved on the outside of the two positioning blocks (2212).

5. The ISOFIX connector for a child seat according to claim 2, characterized in that: The mounting hole (212) is directly opposite to the locking hole (211).

6. An ISOFIX connector for a child seat according to claim 5, characterized in that: The pressing cover (24) is provided with a positioning groove (2411), the outer diameter of the return spring (222) is matched with the positioning groove (2411), and one end of the return spring (222) is inserted into the positioning groove (2411).

7. An ISOFIX connector for a child seat according to claim 6, characterized in that: The pressing cover (24) is symmetrically provided with elastic members (242) on both sides of the positioning groove (2411), and the two elastic members (242) press the two sides of the return spring (222).

8. An ISOFIX connector for a child seat according to claim 7, characterized in that: The elastic member (242) has a guide bevel (2421) on one side facing the return spring (222), and the guide bevels (2421) of the two elastic members (242) are arranged in opposite directions. When the clamping cover (24) is inserted into the mounting hole (212), the edge of the mounting hole (212) slides along the guide bevel (2421) and drives the elastic member (242) to deform.

9. An ISOFIX connector for a child seat according to claim 8, characterized in that: The elastic member (242) has an abutment portion (2422), and the return spring (222) drives the abutment portion (2422) to be pressed against the inner wall of the component housing (21).

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