Connecting device of child safety seat base and child safety seat

Abstract

The utility model discloses a child safety seat base connecting device and a child safety seat, and the child safety seat base connecting device comprises a connecting belt which is flexible and is wound on a child safety seat base; the ISOFIX main body is connected to the bottom side of the child safety seat base; the ISOFIX connector is used for being connected with an ISOFIX insertion opening in an automobile seat, the ISOFIX connector is configured to have a selectable flexible connection mode and a selectable rigid connection mode, and the flexible connection mode and the rigid connection mode can be switched mutually. Therefore, the ISOFIX joint can be selectively connected with the ISOFIX main body or the connecting belt to realize different connecting modes, has the characteristics of high practicability, convenience in use and lower manufacturing cost, and can effectively improve the market competitiveness of products.

Description

[Technical field]

[0001] The utility model relates to the technical field of children's safety travel products, in particular to a connecting device for a child safety seat base and a child safety seat. [Background technology]

[0002] Child safety seats are classified according to the type of fixing method. In addition to the seat belt fixing method, there are currently two main types: the European standard ISOFIX fixing method and the American standard LATCH fixing method.

[0003] ISOFIX (International Standards Organization FIX) child safety seat fixing system is a standard for child safety seat interfaces designed and implemented in Europe since 1990. Currently, all models sold in Europe have this interface as a standard configuration, and some joint venture automobile manufacturers in China also provide this interface configuration. The characteristic of this configuration is that it has two fixed interfaces that are hard-connected to the child safety seat, namely the two lower fixing brackets located on the seat.

[0004] The development of ISOFIX was an important development. In the past, most child safety seats were placed on the car seat and sometimes only secured with a lap belt. However, different car models have different seats, seat belts and fixing methods. Different car seat shapes, shorter seat belts and different anchor point locations all cause some child safety seats to be placed further forward or further back. All these factors make it difficult to create a child safety seat that fits all car models. ISOFIX was developed to solve all these problems. Its ultimate goal is that any ISOFIX child safety seat you buy will fit your car and you can simply plug it into the ISOFIX interface.

[0005] LATCH is the abbreviation of "Lower Anchors and Tethers for Children". Since September 1, 2002, the United States has stipulated that almost all types of cars must provide LATCH system child safety seat fixing methods. The biggest difference between it and the European standard ISOFIX fixing method is that the connection method is not hard connection but hook connection, and there is one more fixing point than ISOFIX (i.e. upper fixing bracket), a total of three.

[0006] However, the above two fixing methods are both separately and independently installed on the child safety seat base for use, which means that the child safety seat needs to be installed with two fixing methods at the same time to comply with both European and American fixing methods, which results in high manufacturing costs and inconvenience in use.

[0007] For this reason, the present invention is studied and proposed in view of the above-mentioned problems. [Contents of the utility model]

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a connection device for a child safety seat base and a child safety seat. The ISOFIX connector is configured to have a selectable flexible connection mode and a rigid connection mode and the flexible connection mode and the rigid connection mode can be switched between each other. For this reason, the ISOFIX connector of the utility model can be selectively connected to the ISOFIX body or the connection belt to achieve different connection modes. The utility model has the characteristics of high practicality, easy use and low manufacturing cost, and can also effectively improve the market competitiveness of the product.

[0009] The utility model discloses a connecting device for a child safety seat base, comprising:

[0010] A connecting belt 2, wherein the connecting belt 2 is flexible and is wound around the base of the child safety seat;

[0011] An ISOFIX body 1 connected to the bottom side of the child safety seat base;

[0012] An ISOFIX connector 3 is used to connect to an ISOFIX socket on a car seat. The ISOFIX connector 3 is configured to have a selectable flexible connection mode and a rigid connection mode, and the flexible connection mode and the rigid connection mode can be switched between each other. One end of the connection belt 2 is connected to the ISOFIX connector 3, and a detachable connection structure 4 for rigidly connecting the ISOFIX connector 3 and the ISOFIX body 1 is provided between the ISOFIX connector 3 and the ISOFIX body 1;

[0013] When the flexible connection mode is selected, the ISOFIX connector 3 is separated from the ISOFIX body 1, and the child safety seat base is connected to the ISOFIX socket on the car seat through the connecting belt 2 and the ISOFIX connector 3;

[0014] When the rigid connection mode is selected, the ISOFIX connector 3 is rigidly connected to the ISOFIX body 1 through the connection structure 4 and then connected to the ISOFIX socket on the car seat.

[0015] In the above-mentioned connecting device for the child safety seat base, a connector locking structure 5 is provided between the ISOFIX connector 3 and the ISOFIX body 1 for locking the ISOFIX connector 3 relative to the ISOFIX body 1 when the ISOFIX connector 3 is connected to the ISOFIX body 1 .

[0016] As described above, in a connecting device for a child safety seat base, the connecting structure 4 includes an inserting protrusion 41 provided on the corresponding end of the ISOFIX body 1 or the ISOFIX connector 3 and an inserting cavity 42 provided on the corresponding end of the ISOFIX connector 3 or the ISOFIX body 1 and plugged with the inserting protrusion 41; the connector locking structure 5 is located between the inserting protrusion 41 and the side wall of the inserting cavity 42.

[0017] As described above, a connecting device for a child safety seat base, the connector locking structure 5 includes a locking hole 51 arranged on the side wall of the plug-in cavity 42 and a locking block 52 slidably arranged on the plug-in protrusion 41 and capable of being inserted into the locking hole 51 to prevent the ISOFIX connector 3 from being separated from the ISOFIX body 1; the connector locking structure 5 also includes a locking elastic member 53 for driving the locking block 52 to elastically return to its original position.

[0018] In the connection device of the child safety seat base as described above, the two locking holes 51 are symmetrically arranged on the corresponding side walls of the plug-in cavity 42, the corresponding two locking blocks 52 are symmetrically arranged on the plug-in protrusion 41, the locking elastic member 53 is located between the corresponding ends of the two locking blocks 52, and one end of the locking elastic member 53 is connected to the corresponding end of one locking block 52, and the other end is connected to the corresponding end of the other locking block 52.

[0019] In the above-mentioned connecting device for the child safety seat base, a guide structure 6 for guiding the sliding path of the locking block 52 is provided between the locking block 52 and the plug-in protrusion 41 .

[0020] In the above-mentioned connecting device for the child safety seat base, the guide structure 6 includes a guide strip hole 61 provided on the plug-in protrusion 41 and a guide protrusion 62 provided on the locking block 52 and guidingly matched with the guide strip hole 61 .

[0021] As described above, a connecting device for a child safety seat base is further provided with a safety locking structure 7 between the plug-in protrusion 41 and the side wall of the plug-in cavity 42, and the safety locking structure 7 includes a safety lock hole 71 provided on the plug-in protrusion 41 and the side wall of the plug-in cavity 42, and a safety lock rod that can penetrate the safety lock hole 71 on the plug-in protrusion 41 and the side wall of the plug-in cavity 42 at the same time.

[0022] As described above, a connecting device for a child safety seat base is provided with a connecting component between the connecting belt 2 and the ISOFIX connector 3, and the connecting component includes a mounting groove 32 arranged on the inner side of the ISOFIX connector 3, and a connecting column 31 is provided on the ISOFIX connector 3 and located in the mounting groove 32; the connecting component also includes a connecting sleeve 21 arranged at the corresponding end of the connecting belt 2 and used to be sleeved on the connecting column 31; the connecting belt 2 is a telescopic and adjustable setting.

[0023] As described above, the connection device for the base of a child safety seat, the ISOFIX main body 1 includes an ISOFIX shell 11, the ISOFIX shell 11 is slidably and adjustably connected to an ISOFIX sleeve 12, an ISOFIX telescopic adjustment mechanism 13 is provided between the ISOFIX shell 11 and the ISOFIX sleeve 12; the ISOFIX connector 3 is connected to the outer end of the ISOFIX sleeve 12.

[0024] In the above-mentioned connecting device for the child safety seat base, the ISOFIX connector 3 is configured to be connected to the ISOFIX body 1 and the connecting belt 2 at the same time.

[0025] The utility model also provides a child safety seat, comprising a seat body and a seat base, wherein the seat base has a connecting device for a child safety seat base as described above.

[0026] Compared with the prior art, the utility model has the following advantages:

[0027] 1. The ISOFIX connector of the utility model is configured to have a selectable flexible connection mode and a rigid connection mode, and the flexible connection mode and the rigid connection mode can be switched between each other. Therefore, the ISOFIX connector of the utility model can selectively connect the child safety seat base to the ISOFIX socket on the car seat in different connection and restraint modes through the ISOFIX body or the connecting belt. It has the characteristics of strong applicability, convenient use, simple structure and economical manufacturing cost, and can also effectively improve the market competitiveness of products.

[0028] 2. In order to facilitate disassembly, the ISOFIX connector and the ISOFIX body are connected and used by plugging the plug-in convex part and the plug-in concave cavity.

[0029] 3. In order to ensure reliable locking, the two locking holes are symmetrically arranged on the corresponding side walls of the plug-in cavity, and the corresponding two locking blocks are symmetrically arranged on the plug-in convex part, so that the plug-in convex part and the plug-in cavity can be locked in multiple positions to ensure a stable and reliable connection between the ISOFIX connector and the ISOFIX body.

[0030] 4. In order to ensure that the locking block slides stably and smoothly along the set direction, a guide structure for guiding the sliding path of the locking block is provided between the locking block and the plug-in protrusion.

[0031] 5. In order to further improve the reliability and stability of the connection between the ISOFIX connector and the ISOFIX body, and at the same time further improve the safety performance and avoid misoperation, a safety locking structure is also provided between the plug-in convex portion and the side wall of the plug-in concave cavity.

Brief Description of the Drawings

[0032] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0033] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model.

[0034] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model.

[0035] Figure 3 It is a cutaway stereogram of the utility model.

[0036] Figure 4 It is a sectional front view of the utility model.

[0037] Figure 5 This is one of the exploded views of the present utility model.

[0038] Figure 6 This is the second exploded view of the utility model. [Specific implementation method]

[0039] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0040] like Figure 1-6As shown, the utility model is a connection device for a child safety seat base, comprising: a connection belt 2, an ISOFIX main body 1 and an ISOFIX connector 3, wherein the connection belt 2 is flexible and is wound around the child safety seat base; the ISOFIX main body 1 is connected to the bottom side of the child safety seat base; the ISOFIX connector 3 is used to connect with the ISOFIX socket on the car seat, and the ISOFIX connector 3 is configured to have a selectable flexible connection mode and a rigid connection mode, and the flexible connection mode and the rigid connection mode can be switched between each other, one end of the connection belt 2 is connected to the ISOFIX connector 3, and a detachable connection structure 4 for rigid connection between the two is provided between the ISOFIX connector 3 and the ISOFIX main body 1; when the flexible connection mode is selected, the ISOFIX connector 3 is separated from the ISOFIX main body 1, and the child safety seat base is connected to the ISOFIX socket on the car seat through the connection belt 2 and the ISOFIX connector 3; when the rigid connection mode is selected, the ISOFIX connector 3 is rigidly connected to the ISOFIX main body 1 through the connection structure 4, and then connected to the ISOFIX socket on the car seat. The ISOFIX connector of the utility model can realize different connection and restraint modes between the child safety seat base and the car seat through the connection structure 4 and the connection belt 2, which is convenient for people to choose and use. Therefore, the child safety seat base of the utility model has two connection modes suitable for American standards and European standards respectively, which further improves the competitiveness of the product.

[0041] When the ISOFIX connector 3 is connected to the ISOFIX main body 1 in the utility model, it must be connected in a set manner, that is, the notch position of the ISOFIX connector 3 faces downwards, such as Figure 1 , 2 As shown, if the ISOFIX connector 3 is flipped 180° and connected to the ISOFIX body 1, the notch of the ISOFIX connector 3 faces upward, and the ISOFIX connector 3 cannot be connected to the ISOFIX socket on the car seat, thus achieving a foolproof effect.

[0042] like Figure 1-5 As shown, in order to ensure that the ISOFIX connector 3 is reliably connected to the ISOFIX body 1 , a connector locking structure 5 is provided between the ISOFIX connector 3 and the ISOFIX body 1 for locking the ISOFIX connector 3 relative to the ISOFIX body 1 when the ISOFIX connector 3 is connected to the ISOFIX body 1 .

[0043] like Figure 1-5As shown, the connection structure 4 includes a plug-in protrusion 41 provided on the corresponding end of the ISOFIX body 1 or the ISOFIX connector 3 and a plug-in cavity 42 provided on the corresponding end of the ISOFIX connector 3 or the ISOFIX body 1 and plugged with the plug-in protrusion 41; the connector locking structure 5 is located between the plug-in protrusion 41 and the side wall of the plug-in cavity 42. When the ISOFIX connector 3 needs to be connected to the ISOFIX body 1 for use, the ISOFIX connector 3 is operated to sleeve the plug-in cavity 42 on the plug-in protrusion 41, and the connection is convenient and quick. Figure 1 , 2 As shown in Figures 5 and 6, the ISOFIX body 1 is provided with a blocking step near the plug-in protrusion 41 for blocking and cooperating with the edge of the outer port of the plug-in cavity 42 when the plug-in cavity 42 is sleeved on the plug-in protrusion 41. That is, the user can understand whether the plug-in cavity 42 is completely sleeved on the plug-in protrusion 41 by whether the edge of the outer port of the plug-in cavity 42 abuts against the blocking step. At the same time, it can also play a positioning role for the connector locking structure 5 and the safety locking mechanism 7 to ensure that the locking block 52 is accurately inserted into the locking hole 51 and the two safety lock holes 71 are accurately aligned.

[0044] like Figure 1-5 As shown, in order to ensure reliable locking, the connector locking structure 5 includes a locking hole 51 provided on the side wall of the insertion cavity 42 and a locking block 52 slidably provided on the insertion protrusion 41 and capable of being inserted into the locking hole 51 to prevent the ISOFIX connector 3 from being separated from the ISOFIX body 1; the connector locking structure 5 also includes a locking elastic member 53 for driving the locking block 52 to elastically return to its original position. Figure 1 , 2 As shown in Figures 5 and 6, the outer end of the locking block 52 is provided with a guiding inclined surface 521 for guiding and cooperating with the end wall or inner wall of the plugging cavity 42 when the plugging cavity 42 is sleeved on the plugging protrusion 41 to avoid interference between the locking block 52 and the plugging cavity 42. The guiding inclined surface can also be provided on the inner wall or end wall of the installation cavity to guide and cooperate with the outer end of the locking block 52. When it is necessary to remove the ISOFIX connector from the ISOFIX body 1, the user presses the outer end of the locking block 52 to make the outer end of the locking block 52 withdraw from the locking hole 51, and then operates the plugging cavity 42 of the ISOFIX connector 3 to separate from the plugging protrusion 41.

[0045] like Figure 3 , 4As shown, the two locking holes 51 are symmetrically arranged on the corresponding side walls of the plug-in cavity 42, and the corresponding two locking blocks 52 are symmetrically arranged on the plug-in protrusion 41, so that the plug-in protrusion and the plug-in cavity can be locked in multiple positions to ensure that the connection between the ISOFIX connector and the ISOFIX body is firm and reliable. The locking elastic member 53 is located between the corresponding ends of the two locking blocks 52, and one end of the locking elastic member 53 is connected to the corresponding end of one locking block 52, and the other end is connected to the corresponding end of the other locking block 52, so that the two locking blocks 52 can be driven to act accordingly by the locking elastic member 53 at the same time.

[0046] like Figure 3 , 4 As shown, in order to ensure that the locking block slides stably and smoothly along the set direction, a guide structure 6 for guiding the sliding path of the locking block 52 is provided between the locking block 52 and the plug-in protrusion 41. The guide structure 6 includes a guide strip hole 61 provided on the plug-in protrusion 41 and a guide protrusion 62 provided on the locking block 52 and guiding and cooperating with the guide strip hole 61. Among them, the guide protrusion 62 can abut against the two end walls of the guide strip hole 61 to limit the movement stroke of the guide protrusion 62, ensuring that the locking block 52 always remains connected to the plug-in protrusion 41, avoiding the loss or falling of the locking block 52, and ensuring normal use; at the same time, it can also prevent the outer end face of the locking block 52 from protruding from the outer surface of the plug-in cavity 42, that is, the outer surface of the ISOFIX connector, affecting the external structure of the utility model, that is, ensuring that the external structure of the utility model is neat and simple. As shown Figure 4 As shown, the outer end surface of the locking block 52 and the corresponding outer surface of the plug-in cavity 42 are in the same plane.

[0047] like Figure 3 , 4 As shown, the plug-in protrusion 41 is provided with an installation inner cavity 411 for installing the locking elastic member 53 , the guide protrusion 62 and the locking block 52 .

[0048] like Figure 1-5 As shown, in order to further improve the connection firmness between the ISOFIX connector and the ISOFIX body, and at the same time further improve the safety performance and avoid misoperation, a safety locking structure 7 is further provided between the plug-in protrusion 41 and the side wall of the plug-in cavity 42, and the safety locking structure 7 includes a safety lock hole 71 provided on the plug-in protrusion 41 and the side wall of the plug-in cavity 42, and a safety lock rod that can be simultaneously penetrated through the safety lock hole 71 on the side wall of the plug-in protrusion 41 and the plug-in cavity 42. Among them, the safety lock hole 71 of the plug-in protrusion 41 can be a threaded hole, and the safety lock rod is a threaded rod, and the threaded end of the safety lock rod penetrates the safety lock hole 71 on the side wall of the plug-in cavity 42 and is threadedly connected with the safety lock hole 71 of the plug-in protrusion 41.

[0049] like Figure 1 , 2As shown in Figures 6 and 7, for convenient and reliable connection, a connection assembly is provided between the connection belt 2 and the ISOFIX connector 3, and the connection assembly includes a mounting groove 32 provided on the inner side of the ISOFIX connector 3, and a connecting column 31 is provided on the ISOFIX connector 3 and located in the mounting groove 32; the connection assembly also includes a connecting sleeve 21 provided at the corresponding end of the connection belt 2 and used to be movably sleeved on the connecting column 31. The mounting groove 32 is configured to limit the range of movement of the connection belt 2, so that the connection belt can better wrap around and restrain the child safety seat base, and the two mounting grooves 32 are correspondingly provided on the opposite side walls inside the two ISOFIX connectors 3 to prevent the connection belt from being interfered.

[0050] like Figure 1 , 2 As shown in Figures 5 and 6, the ISOFIX body 1 includes an ISOFIX shell 11, to which an ISOFIX sleeve 12 is slidably and adjustably connected, and an ISOFIX telescopic adjustment mechanism 13 is provided between the ISOFIX shell 11 and the ISOFIX sleeve 12; the ISOFIX connector 3 is connected to the outer end of the ISOFIX sleeve 12.

[0051] like Figure 1 , 2 As shown in , 5, and 6, the connecting belt 2 is a telescopically adjustable setting. The telescopically adjustable connecting belt 2 can be found in: A child safety seat base and a child safety seat, etc., filed on February 12, 2019, with application number 201910110817.7, which will not be described here.

[0052] like Figure 1 , 2 As shown, in order to connect the child safety seat base to the car seat more firmly and reliably and ensure the structural strength and stability between the child safety seat base and the car seat, the locking elastic member 53 and the ISOFIX connector 3 are configured to be connected to the ISOFIX body 1 and the connecting belt 2 at the same time.

[0053] The utility model discloses a child safety seat, comprising a seat body and a seat base. The seat base has a connecting device of the child safety seat base as described above. Therefore, the child safety seat of the utility model has a flexible connection mode and a rigid connection mode. When in use, people can select a corresponding connection mode according to needs.

Claims

1. A connection device for a child safety seat base, characterized in that include: A connecting belt (2), the connecting belt (2) being flexible and wound around the base of the child safety seat; An ISOFIX body (1), the ISOFIX body (1) being connected to the bottom side of the child safety seat base; An ISOFIX connector (3), the ISOFIX connector (3) being used to connect to an ISOFIX socket on a car seat, the ISOFIX connector (3) being configured to have a selectable flexible connection mode and a rigid connection mode, the flexible connection mode and the rigid connection mode being switchable with each other, one end of the connection belt (2) being connected to the ISOFIX connector (3), and a detachable connection structure (4) for rigidly connecting the two is provided between the ISOFIX connector (3) and the ISOFIX body (1); When the flexible connection mode is selected, the ISOFIX connector (3) is separated from the ISOFIX body (1), and the child safety seat base is connected to the ISOFIX socket on the car seat through the connecting belt (2) and the ISOFIX connector (3); When the rigid connection mode is selected, the ISOFIX connector (3) is rigidly connected to the ISOFIX body (1) via the connection structure (4) and then connected to the ISOFIX socket on the car seat.

2. A connecting device for a child safety seat base according to claim 1, characterized in that A joint locking structure (5) is also provided between the ISOFIX joint (3) and the ISOFIX main body (1) for locking the ISOFIX joint (3) relative to the ISOFIX main body (1) when the ISOFIX joint (3) and the ISOFIX main body (1) are connected.

3. A connecting device for a child safety seat base according to claim 2, characterized in that The connection structure (4) comprises a plug-in protrusion (41) provided on the corresponding end of the ISOFIX body (1) or the ISOFIX connector (3) and a plug-in cavity (42) provided on the corresponding end of the ISOFIX connector (3) or the ISOFIX body (1) and plugged with the plug-in protrusion (41); the connector locking structure (5) is located between the plug-in protrusion (41) and the side wall of the plug-in cavity (42).

4. A connecting device for a child safety seat base according to claim 3, characterized in that The connector locking structure (5) comprises a locking hole (51) provided on the side wall of the plug-in cavity (42) and a locking block (52) slidably provided on the plug-in protrusion (41) and capable of being inserted into the locking hole (51) to prevent the ISOFIX connector (3) from being separated from the ISOFIX body (1); the connector locking structure (5) further comprises a locking elastic member (53) for driving the locking block (52) to elastically return to its original position.

5. A connecting device for a child safety seat base according to claim 4, characterized in that The two locking holes (51) are symmetrically arranged on the corresponding side walls of the plug-in cavity (42), the corresponding two locking blocks (52) are symmetrically arranged on the plug-in protrusion (41), the locking elastic member (53) is located between the corresponding ends of the two locking blocks (52), and one end of the locking elastic member (53) is connected to the corresponding end of one locking block (52), and the other end is connected to the corresponding end of the other locking block (52).

6. A connecting device for a child safety seat base according to claim 4, characterized in that A guide structure (6) for guiding the sliding path of the locking block (52) is provided between the locking block (52) and the plug-in protrusion (41), and the guide structure (6) comprises a guide bar hole (61) provided on the plug-in protrusion (41) and a guide protrusion rod (62) provided on the locking block (52) and cooperating with the guide bar hole (61) for guiding.

7. A connecting device for a child safety seat base according to any one of claims 3 to 6, characterized in that A safety locking structure (7) is also provided between the plugging protrusion (41) and the side wall of the plugging cavity (42), and the safety locking structure (7) comprises a safety locking hole (71) provided on the plugging protrusion (41) and the side wall of the plugging cavity (42), and a safety locking rod which can be simultaneously penetrated through the safety locking hole (71) on the side wall of the plugging protrusion (41) and the plugging cavity (42).

8. A connecting device for a child safety seat base according to claim 1, characterized in that A connecting assembly is provided between the connecting belt (2) and the ISOFIX connector (3), the connecting assembly comprising a mounting groove (32) provided on the inner side of the ISOFIX connector (3), a connecting column (31) being provided on the ISOFIX connector (3) and located in the mounting groove (32); the connecting assembly also comprises a connecting sleeve (21) provided at the corresponding end of the connecting belt (2) and used for being sleeved on the connecting column (31), and the connecting belt (2) is a telescopically adjustable arrangement.

9. A connecting device for a child safety seat base according to claim 1, characterized in that The ISOFIX main body (1) comprises an ISOFIX housing (11), the ISOFIX housing (11) is slidably and adjustably connected to an ISOFIX sleeve (12), an ISOFIX telescopic adjustment mechanism (13) is provided between the ISOFIX housing (11) and the ISOFIX sleeve (12); and the ISOFIX connector (3) is connected to the outer end of the ISOFIX sleeve (12).

10. A child safety seat, characterized in that The utility model comprises a seat body and a seat base, wherein the seat base has a connecting device of a child safety seat base as described in any one of claims 1 to 9.

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