Stress mechanism of child safety seat

Abstract

The child safety seat stress mechanism comprises a base, an inserting piece and a supporting leg support, and the inserting piece and the supporting leg support are connected with the base; the stress mechanism comprises a supporting bracket, a guide piece and a stress bracket, the base comprises an upper shell and a lower shell, the supporting bracket and the guide piece are respectively connected with the upper shell, and the guide piece is used for guiding the supporting bracket; the stress support is located between the guide piece and the plug connector, the stress support and the guide piece are provided with at least one connecting point, and at least one connecting point is arranged between the stress support and the plug connector; the stress support is arranged in the length extension direction of the plug connector, and the end, close to the supporting leg support, of the stress support is connected with the supporting leg support. The stress support can transmit acting force borne by the guiding piece to the inserting piece and the supporting leg support, the acting force borne by the guiding piece is decomposed, the acting force is quickly dispersed to the base, the automobile seat and the floor in the automobile, stress concentration on the guiding piece is reduced, and the probability that the seat turns on one side relative to the base is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and in particular to a force-bearing mechanism of a child safety seat. Background Art

[0002] In order to improve the safety and convenience of children using child safety seats, most child safety seats can be rotated and adjusted when connected to the car seat; the child safety seat includes a base and a seat, the base is connected to the car seat, and the seat is connected to the base, and the seat can rotate 360 ​​degrees relative to the base.

[0003] However, when the vehicle is driving, if it accelerates or decelerates, the seat will be affected by the inertial force, which will generate a lateral force on the base. In the prior art, only a support bracket and a guide rail are set between the seat and the seat. The guide rail is directly connected to the base, and there are fewer connection points. The unilateral force generated by the seat will be transmitted to the guide rail through the support bracket. There are too few connection points between the guide rail and the base, which makes the force unable to be well transmitted to the base and the car seat, so that the guide rail bears most of the force, so that the force only acts between the seat and the guide rail, which makes the seat easy to tip over; moreover, the guide rail bears most of the force, and the service life of the guide rail will be greatly reduced.

[0004] Therefore, there is room for further improvement in the rotational force bearing system of the child safety seat in the prior art. Utility Model Content

[0005] In view of this, in order to address the technical problem that the force-bearing mechanism between the seat and the base in the above-mentioned prior art cannot transmit the unidirectional force exerted on the seat to the base, thereby causing a high probability that the seat will tilt sideways relative to the base, the present application provides a child safety seat force-bearing mechanism, which acts between the seat and the base, can better transmit the impact force exerted on the seat to the base and the car seat, absorb the lateral force, thereby preventing the seat from tipping over, and can better ensure the safety of children.

[0006] The present application provides a force-bearing mechanism for a child safety seat, comprising a base, a connector, and a leg support, wherein the connector and the leg support are connected to the base;

[0007] The force-bearing mechanism includes a supporting bracket, a guide member and a force-bearing bracket, the base includes an upper shell and a lower shell, the supporting bracket and the guide member are respectively connected to the upper shell, and the guide member is used to guide the supporting bracket;

[0008] The force-bearing bracket is located between the guide member and the connector, the force-bearing bracket and the guide member have at least one connection point, and the force-bearing bracket and the connector have at least one connection point;

[0009] The force-bearing bracket is arranged parallel to the length extension direction of the connector, and one end of the force-bearing bracket close to the leg bracket is connected to the leg bracket.

[0010] Compared with the prior art, the present application provides a force-bearing mechanism of a child safety seat, which is provided with a force-bearing bracket, which is arranged along the length extension direction of the connector, the upper end of the force-bearing bracket is connected to the guide member, and the lower end is connected to the connector and the leg bracket at the same time, so that the force applied to the guide member can be transmitted to the connector and the leg bracket, and then the force applied to the guide member can be better decomposed, and the force can be quickly dispersed to the base, the car seat and the floor inside the car, reducing the stress concentration on the guide member, so that when the guide member is subjected to a unidirectional force, the probability of the seat tipping over relative to the base is reduced.

[0011] Preferably, one end of the force-bearing bracket close to the guide member is connected to the upper shell, and the force-bearing bracket and the upper shell have at least one connection point;

[0012] One end of the force-bearing bracket close to the plug connector is connected to the lower shell, and the force-bearing bracket and the lower shell have at least one connection point.

[0013] Preferably, the force-bearing bracket includes a force-bearing plate, and the force-bearing plate is arranged parallel to the length extension direction of the connector;

[0014] The end of the load-bearing plate close to the guide member is provided with a first connecting block and a second connecting block, and the first connecting block and the second connecting block are spaced apart along the length extension direction of the load-bearing plate;

[0015] The first connecting block and the second connecting block are bent toward the guide member, and the guide member and the force-bearing bracket are connected through the first connecting block and the second connecting block.

[0016] Preferably, the load-bearing plate is provided with a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are spaced apart along the length extension direction of the load-bearing plate;

[0017] One end of the connector close to the leg bracket is connected to the load-bearing plate through the first connecting portion, and the other end of the connector is connected to the load-bearing plate through the second connecting portion.

[0018] Preferably, the force-bearing bracket also includes a third connecting block, which is connected to one end of the force-bearing plate close to the guide member, and the third connecting block is bent in a direction away from the guide member, and the upper shell and the force-bearing bracket are connected through the third connecting block.

[0019] Preferably, the end of the stress-bearing plate close to the connector is provided with a fourth connecting block, a fifth connecting block and a sixth connecting block, and the lower shell and the stress-bearing bracket are connected through the fourth connecting block, the fifth connecting block and the sixth connecting block;

[0020] Wherein, the fourth connecting block is provided with a side of the force-bearing plate facing the plug connector, and the fourth connecting block is bent toward the plug connector;

[0021] The fifth connecting block and the sixth connecting block are arranged on a side of the force-bearing plate facing away from the plug-in connector, and the fifth connecting block and the sixth connecting block are bent in a direction away from the plug-in connector.

[0022] Preferably, a limiting plate is provided at one end of the force-bearing plate close to the guide member, the limiting plate is bent toward the guide member, and the limiting plate is located between the leg bracket and the guide member;

[0023] The limiting plate is located between the first connecting block and the second connecting block.

[0024] Preferably, at least two weight-reducing holes are provided on the load-bearing plate, and the weight-reducing holes are distributed at intervals on the load-bearing plate.

[0025] Preferably, a lubricating member is further included, wherein the lubricating member is connected to the end of the support bracket close to the guide member, and the lubricating member can be used to prevent the support bracket from contacting the guide member;

[0026] The lubricating member includes a limiting portion, which extends toward the guide member and is used to limit the bottom of the guide member.

[0027] Preferably, a reinforcement portion is provided at one end of the upper shell close to the support bracket, the reinforcement portion extends toward the lubricating member, the reinforcement portion is located between the guide member and the support bracket, and the reinforcement portion is used to prevent the guide member from contacting the support bracket.

[0028] The force-bearing mechanism of a child safety seat of the present application has at least the following technical effects:

[0029] 1. By providing a force-bearing bracket, the upper end of which is connected to the guide member and the upper shell of the base, and the lower end is connected to the lower shell of the base, the leg bracket, and the connector, the force on the guide member can be quickly transmitted to the base, the car seat, and the floor inside the car, quickly dissipating the impact force on the guide member, avoiding the possibility of the seat tipping over when the seat applies a unidirectional force to the guide member, and effectively ensuring the safety of the child safety seat;

[0030] 2. By making the first connecting block and the second connecting block spaced apart, the connection points between the force-bearing bracket and the guide member are increased, thereby enhancing the connection stability and force transmission effect between the guide member and the force-bearing bracket;

[0031] 3. By setting weight-reducing holes on the load-bearing plate, the weight and production cost of the load-bearing bracket can be effectively reduced, while the shear resistance of the load-bearing bracket can be improved;

[0032] 4. By providing lubricating parts and reinforcing parts on the upper shell, the outer side of the guide member can be protected to avoid collision between the support brackets when they rotate relative to the guide member, reduce noise, ensure smooth rotation and avoid serious wear between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the three-dimensional structure of a force-bearing mechanism of a child safety seat provided in one embodiment of the present application;

[0034] Figure 2 1 is a schematic diagram of a partial cross-sectional structure of a child safety seat base provided by an embodiment of the present application;

[0035] Figure 3 yes Figure 1 A magnified schematic diagram of a local area A;

[0036] Figure 4 yes Figure 2 A schematic diagram of a partial B enlargement;

[0037] Figure 5 This is a schematic diagram of the three-dimensional structure of a guide member provided in one embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the three-dimensional structure of the load-bearing bracket provided in one embodiment of the present application. Figure 1 ;

[0039] Figure 7 This is a schematic diagram of the three-dimensional structure of the load-bearing bracket provided in one embodiment of the present application. Figure 2 ;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the connection between the support bracket and the lubricating component provided in one embodiment of the present application.

[0041] Reference numerals: 1, upper housing; 2, lower housing; 3, connector; 4, leg bracket; 5, support bracket; 6, guide member; 7, force-bearing bracket; 8, lubricating member; 9, support member;

[0042] 11. Strengthening Department;

[0043] 61. Guide inner ring; 62. Guide outer ring;

[0044] 71. Load-bearing plate; 72. First connecting block; 73. Second connecting block; 74. Third connecting block; 75. Fourth connecting block; 76. Fifth connecting block; 77. Sixth connecting block; 78. Reinforcement plate; 79. Limiting plate;

[0045] 711, first connecting portion; 712, second connecting portion; 713, third connecting portion; 714, weight reduction hole;

[0046] 81. Limiting part. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.

[0048] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting this application.

[0050] The present application will be described in further detail below with reference to the accompanying drawings. Figures 1 to 8 illustrate.

[0051] The present application provides a force-bearing mechanism for a child safety seat, which is applied between the seat and the base, and is mainly used to transmit the force exerted by the seat on the base, ensuring that the base, the car seat, and the car floor can share the impact force, thereby preventing the seat from tipping over relative to the base and the car seat.

[0052] like Figures 1 to 2 As shown, the base includes an upper shell 1 and a lower shell 2, and the upper shell 1 is connected to the upper end of the lower shell 2; a support leg is connected to the front end of the base, and the support leg extends downward to abut against the car floor, and a support leg bracket 4 is provided at both ends of the support leg, and the support leg bracket 4 extends toward the direction of the connector 3; a connector 3 (also known as ISOFIX) is provided at both ends of the base, and the connector 3 is used to be installed and inserted into the car seat to realize the installation of the child seat and the car seat; in this application, the end where the support leg is located is the front end, the direction toward the top of the upper shell 1 is defined as the upper end, and the direction toward the bottom of the lower shell 2 is defined as the lower end.

[0053] Specifically, further describe the force-bearing mechanism; Figures 1 to 3As shown, the force-bearing mechanism includes a support bracket 5, a guide member 6 and a force-bearing bracket 7. The support bracket 5, the guide member 6 and the force-bearing bracket 7 are arranged roughly from top to bottom, wherein the support bracket 5 is connected to the upper shell 1, the upper end of the support bracket 5 is connected to the seat, the guide member 6 is located between the support bracket 5 and the force-bearing bracket 7, the guide member 6 is connected to the upper shell 1, and the guide member 6 is annular as a whole. When the seat drives the support bracket 5 to rotate together, the guide member 6 is used to guide the rotation of the support bracket 5; wherein, as Figure 5 As shown, the guide member 6 is provided with a connecting block protruding outward for connecting with the upper shell 1 .

[0054] Among them, such as Figure 3 、 Figures 6 and 7 As shown, the force-bearing bracket 7 is a plate-shaped structure as a whole, and the force-bearing bracket 7 is provided with two pieces, which are respectively provided on the left and right sides of the base; the force-bearing bracket 7 is located between the connector 3 and the guide member 6, and the overall length extension direction of the force-bearing bracket 7 is parallel to the length extension direction of the connector 3, and the end (upper end) of the force-bearing bracket 7 close to the guide member 6 is connected to the guide member 6 and the upper shell 1, and the force-bearing bracket 7 and the guide member 6 have at least one connection point, and the end (lower end) of the force-bearing bracket 7 close to the connector 3 is connected to the connector 3 and the lower shell 2, and there is at least one connection point between the force-bearing bracket 7 and the connector 3; and the front side of the lower end of the force-bearing bracket 7 extends toward the leg bracket 4 and is connected to the leg bracket 4, so that the upper end of the force-bearing bracket 7 is simultaneously It is connected to the guide part 6, and the lower end of the force-bearing bracket 7 is connected to the connector 3 and the leg bracket 4 at the same time, so that the force acting on the guide part 6 can be transmitted to the connector 3 and the support bracket 5, and then the force acting on the guide part 6 is better decomposed. The force-bearing bracket 7 transmits the force to the car seat by connecting with the connector 3; transmits the force to the car floor by connecting with the leg bracket 4; and transmits the force evenly to the base by connecting with the upper and lower shells 2, and then quickly disperses the force to the base, car seat and car interior floor, reducing stress concentration on the guide part 6, so that when the guide part 6 is subjected to unidirectional force, the probability of the seat rolling over when rotating relative to the base is greatly reduced, thereby ensuring the safety of the child safety seat.

[0055] In this embodiment, the force-bearing bracket 7 has at least one connection point with the guide member 6, the upper shell 1, the lower shell 2, and the connector 3, respectively, so as to ensure the connection stability and force transmission effectiveness between the force-bearing bracket 7 and the guide member 6, the upper shell 1, the lower shell 2, and the connector 3; wherein, the upper shell 1 and the lower shell 2 are connected to form an installation cavity, the force-bearing bracket 7, the guide member 6, the leg bracket 4, and the connector 3 are located in the installation cavity, the guide member 6 and the connector 3 are located on the inner side of the force-bearing bracket 7, and the connector 3 is located on the outer side of the force-bearing bracket 7.

[0056] Furthermore, the stress support 7 is further described; Figure 3 、 Figure 6 、 Figure 7 As shown, the load-bearing bracket 7 includes a load-bearing plate 71. The load-bearing plate 71 is a plate-shaped structure. The bottom of the load-bearing plate 71 is substantially parallel to the horizontal end surface. The front end height of the load-bearing plate 71 is less than the rear end height, so that the upper end surface of the load-bearing plate 71 is an inclined surface. The load-bearing plate 71 is arranged parallel to the length extension direction of the connector 3. A first connecting block 72 and a second connecting block 73 are provided on the outer side of the upper end of the load-bearing plate 71. The first connecting block 72 and the second connecting block 73 are arranged at intervals along the length extension direction of the load-bearing plate 71. The first connecting block 72 is located at the front end of the upper side of the load-bearing plate 71, and the second connecting block 73 is located at the rear end of the upper side of the load-bearing plate 71. As a result, the front and rear ends of the load-bearing bracket 7 are both connected to the guide member 6, increasing the stability and connection area of ​​the connection between the load-bearing bracket 7 and the guide member 6. The large distance between the two connection points can evenly transmit the force on the guide member 6 as much as possible to prevent the guide member 6 from tipping over.

[0057] like Figure 3 、 Figure 6 As shown, the first connecting block 72 and the second connecting block 73 are basically plate-like structures, and the first connecting block 72 and the second connecting block 73 are bent toward the guide member 6 so that the first connecting block 72 and the second connecting block 73 are perpendicular to the force-bearing plate 71, and the lower ends of the first connecting block 72 and the second connecting block 73 are in contact with the upper end surface of the guide member 6; the first connecting block 72 and the second connecting block 73 are provided with mounting holes, and the guide member 6 is provided with matching holes, and the mounting holes correspond to the matching holes for insertion of connecting parts such as screws and rivets to realize the connection between the guide member 6 and the force-bearing bracket 7.

[0058] Similarly, if Figure 3 、 Figures 6 and 7 As shown, the force-bearing bracket 7 also includes a third connecting block 74, which is connected to the outer side of the upper end of the force-bearing plate 71. The third connecting block 74 is a plate-like structure. The third connecting block 74 is bent in the direction away from the guide member 6. The third connecting block 74 is perpendicular to the force-bearing plate 71. The third connecting block 74 is provided with a mounting hole. A connecting column extending downward is provided on the upper shell 1. A matching hole corresponding to the mounting hole is provided in the connecting column. Bolts and other connecting parts pass through the mounting hole and enter the connecting column to realize the connection between the upper shell 1 and the force-bearing bracket 7.

[0059] Further, such as Figure 3 、 Figures 6 and 7 As shown, a fourth connecting block 75, a fifth connecting block 76 and a sixth connecting block 77 are provided at one end of the force-bearing plate 71 close to the connector 3. The fourth connecting block 75, the fifth connecting block 76 and the sixth connecting block 77 are plate-shaped structures; the lower housing 2 and the force-bearing bracket 7 are connected through the fourth connecting block 75, the fifth connecting block 76 and the sixth connecting block 77;

[0060] The fourth connecting block 75 is provided on the side of the force-bearing plate 71 facing the plug connector 3, that is, the fourth connecting block 75 is provided on the outside of the force-bearing plate 71, and the fourth connecting block 75 is approximately located in front of the force-bearing plate 71, and the fourth connecting block 75 is bent toward the direction of the plug connector 3, and the fourth connecting block 75 is perpendicular to the force-bearing plate 71;

[0061] The fifth connecting block 76 and the sixth connecting block 77 are arranged on the side of the force-bearing plate 71 facing away from the plug-in connector 3, that is, the fifth connecting block 76 and the sixth connecting block 77 are arranged on the inner side of the force-bearing plate 71, and the fifth connecting block 76 and the sixth connecting block 77 are roughly located at the rear end of the force-bearing plate 71, the fifth connecting block 76 and the sixth connecting block 77 are bent in the direction away from the plug-in connector 3, and the fifth connecting block 76 and the sixth connecting block 77 are perpendicular to the force-bearing plate 71; in this embodiment, the fourth connecting block 75, the fifth connecting block 76 and the sixth connecting block 77 are all provided with mounting holes, and the lower shell 2 is provided with a connecting column extending upward, and a matching hole corresponding to the mounting hole is provided in the connecting column, and bolts and other connecting parts pass through the mounting hole into the connecting column to realize the connection between the lower shell 2 and the force-bearing bracket 7.

[0062] In this embodiment, if Figure 6 、 Figure 7 As shown, along the front and rear end direction, the first connecting block 72, the fourth connecting block 75, the fifth connecting block 76, the second connecting block 73, the sixth connecting block 77, and the third connecting block 74 are arranged in sequence, and each connecting block is spaced apart. Figure 6 As shown, a reinforcing plate 78 is provided between the fourth connecting block 75 and the force-bearing plate 71. The reinforcing plate 78 is connected to the outer side of the lower end of the force-bearing plate 71. The inner side of the reinforcing plate 78 is connected to the force-bearing plate 71, and the outer side is connected to the fourth connecting block 75. The reinforcing plate 78 is perpendicular to the force-bearing plate 71 and parallel to the fourth connecting block 75. The reinforcing plate 78 is located at the lower end of the fourth connecting block 75, so that the lower end surface of the reinforcing plate 78 fits with the lower shell 2, thereby increasing the contact area between the force-bearing bracket 7 and the lower shell 2, which can play a certain anti-vibration effect and avoid large vibrations between the force-bearing bracket 7 and the lower shell 2.

[0063] Further, such as Figure 6 As shown, a limit plate 79 is provided at one end of the force-bearing plate 71 close to the guide member 6, that is, the limit plate 79 is arranged at the upper end of the force-bearing plate 71, and the limit plate 79 is located between the first connecting block 72 and the second connecting block 73; the limit plate 79 is bent inward so that the limit plate 79 is perpendicular to the force-bearing plate 71, and the limit plate 79 is located between the support leg bracket 4 and the guide member 6, that is, the limit plate 79 is located at the upper end of the support leg bracket 4, so that the limit plate 79 can limit the support leg bracket 4 to prevent the support leg bracket 4 from moving up and colliding with the guide member 6.

[0064] Furthermore, the force-bearing plate 71 is further described; Figure 3 、 Figures 6 and 7 As shown, the force-bearing plate 71 is provided with a first connection portion 711 and a second connection portion 712. The first connection portion 711 and the second connection portion 712 are arranged at intervals along the length extension direction of the force-bearing plate 71, the first connection portion 711 is close to the front end of the force-bearing plate 71, and the second connection portion 712 is close to the rear end of the force-bearing plate 71. The first connection portion 711 and the second connection portion 712 pass through the left and right end surfaces of the force-bearing plate 71; the front end of the connector 3 is connected to the force-bearing plate 71 through the first connection portion 711, and the rear end of the connector 3 is connected to the force-bearing plate 71 through the second connection portion 712, so that the part located in the base is connected to the force-bearing bracket 7 as much as possible, thereby enhancing the connection area and connection stability of the connector 3 and the force bracket 7, and the distance between the two connection points is large, which can transfer the force on the guide member 6 to the connector 3 as evenly as possible, further reducing the probability of preventing the seat from tipping over.

[0065] In this embodiment, mounting holes are provided on the first connecting portion 711 and the second connecting portion 712. Correspondingly, the connector 3 is provided with mounting blocks that mate with the first connecting portion 711 and the second connecting portion 712. The mounting blocks are provided with mating holes for inserting connectors such as screws and rivets, thereby achieving connection between the connector 3 and the load-bearing plate 71. The first connecting portion 711 and the second connecting portion 711 slightly protrude outward, forming smaller protrusions, thereby extending the insertion depth of the connector, increasing the contact area between the connector and the load-bearing bracket 7, and improving the connection stability between the load-bearing bracket 7 and the connector 3.

[0066] like Figure 3 、 Figures 6 and 7 As shown, the front end of the force-bearing plate 71 is provided with a third connecting portion 713, and the third connecting portion 713 is at least two spaced-apart mounting holes. The leg bracket 4 is provided with corresponding matching holes for inserting screws, rivets and other connecting parts, thereby realizing the connection between the leg bracket 4 and the force-bearing plate 71.

[0067] In this embodiment, the third connecting portion 713 is located between the first connecting block 72 and the fourth connecting block 75, the first connecting portion 711 is located between the fourth connecting block 75 and the fifth connecting block 76, and the second connecting portion 712 is located between the sixth connecting block 77 and the third connecting block 74; thereby, the force-bearing bracket 7 is more evenly connected to each component along its length extension direction, and can transmit the force more evenly, avoiding force concentration and difficulty in uniform transmission.

[0068] Further, such as Figure 3 、 Figures 6 and 7As shown, the load-bearing plate 71 is provided with at least two weight-reducing holes 714, which are spaced apart on the load-bearing plate 71. There are multiple weight-reducing holes 714, and the shapes and sizes of the weight-reducing holes 714 are not uniform. However, the size of the weight-reducing holes 714 is proportional to the size of the part where they are located, that is, the larger the part where the weight-reducing holes 714 are located, the larger the weight-reducing holes 714 are. The provision of the weight-reducing holes 714 can effectively reduce the weight and production cost of the load-bearing bracket 7, while improving the shear resistance of the load-bearing bracket 7, having a diffusion effect on force transmission, and can assist the load-bearing bracket 7 in better and evenly transmitting the force acting on the guide member 6. Figure 6 、 Figure 7 As shown, weight-reducing holes 714 are provided at the connection points between the limiting plate 79 and the reinforcing plate 78 and the load-bearing plate 71 .

[0069] On the basis of any of the above embodiments, the force-bearing mechanism is further expanded; Figure 4 、 Figure 8 As shown, the guide member 6 is sleeved on the outside of the support bracket 5; the force-bearing mechanism also includes a lubricating member 8, which is made of plastic. The lubricating member 8 is connected to the end of the support bracket 5 close to the guide member 6, that is, the lubricating member 8 is connected to the lower end of the front and rear ends of the support bracket 5, and the lubricating member 8 is located between the support bracket 5 and the guide member 6. The lubricating member 8 can be used to prevent the support bracket 5 from contacting the guide member 6, thereby avoiding collision and friction between the metal support bracket 5 and the guide member 6, thereby reducing the noise when the support bracket 5 rotates, and can ensure the smoothness of the rotation of the support bracket 5.

[0070] Further, such as Figure 4 、 Figure 8 As shown, a limiting portion 81 is provided at the lower end of the lubricating member 8, and the limiting portion 81 extends and protrudes toward the guide member 6. The limiting portion 81 is located at the lower end of the guide member 6. The limiting portion 81 is used to limit the bottom of the guide member 6, which can prevent the guide member 6 from moving downward too much during the pressure process; wherein, there is a gap between the lower end surface of the guide member 6 and the upper end surface of the limiting portion 81, thereby reducing the friction between the guide member 6 and the lubricating member 8.

[0071] Further, such as Figure 4 、 Figure 5 As shown, an upwardly protruding guide inner ring 61 is provided on the inner side of the guide member 6, and an upwardly protruding guide outer ring 62 is provided on the outer side of the guide member 6. The guide inner ring 61 is a closed ring structure, and the guide outer ring 62 is a ring segment structure. The guide outer ring 62 is respectively arranged at the front and rear ends of the guide member 6, and the protruding height of the guide outer ring 62 is greater than that of the guide inner ring 61.

[0072] Among them, such as Figure 2 、 Figure 4As shown, a reinforcement portion 11 is provided on the inner side of the upper shell 1, and the reinforcement portion 11 is arranged around the inner ring of the upper shell 1. The reinforcement portion 11 is a closed ring structure; the reinforcement portion 11 extends toward the lubricating member 8 and extends between the guide member 6 and the support bracket 5. The reinforcement portion 11 as a whole is close to an N-shaped structure, and its front end extends downward to act between the lubricating member 8 and the guide inner ring 61. A reinforcement rib is provided in the middle, and the reinforcement rib protrudes downward and fits with the upper end surface of the guide member 6 to limit the guide member 6 and prevent the guide member 6 from moving up; the reinforcement member covers the upper end surface and inner side surface of the guide member 6 to prevent the inner side and upper end surface of the guide member 6 from contacting and colliding with the support bracket 5, thereby reducing the friction between the guide member 6 and the support bracket 5.

[0073] Further, such as Figure 4 As shown, the force-bearing mechanism also includes a support member 9, the upper end of the support member 9 is connected to the support bracket 5, and the lower end of the support member 9 is connected to the reinforcement part 11 of the upper shell 1. The support member 9 is used to provide limited support between the support bracket 5 and the reinforcement part 11, which can prevent the upper shell 1 from moving upward and detaching from the protection of the guide member 6, making the protection structure of the guide member 6 by the reinforcement part 11 more stable, further reducing the probability of the guide member 6 tipping over.

[0074] It should be noted that the various embodiments of the present application can be arbitrarily combined into new embodiments if the solutions do not conflict and the technical solutions can coexist.

[0075] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. A force-bearing mechanism for a child safety seat, comprising a base, a connector (3) and a leg support (4), wherein the connector (3) and the leg support (4) are connected to the base; It is characterized in that The force-bearing mechanism comprises a support bracket (5), a guide member (6) and a force-bearing bracket (7); the base comprises an upper shell (1) and a lower shell (2); the support bracket (5) and the guide member (6) are respectively connected to the upper shell (1); and the guide member (6) is used to guide the support bracket (5); The force-bearing bracket (7) is located between the guide member (6) and the connector (3), the force-bearing bracket (7) and the guide member (6) have at least one connection point, and the force-bearing bracket (7) and the connector (3) have at least one connection point; The force-bearing bracket (7) is arranged parallel to the length extension direction of the connector (3), and one end of the force-bearing bracket (7) close to the leg bracket (4) is connected to the leg bracket (4).

2. The force-bearing mechanism of the child safety seat according to claim 1, characterized in that: One end of the force-bearing bracket (7) close to the guide member (6) is connected to the upper shell (1), and the force-bearing bracket (7) and the upper shell (1) have at least one connection point; One end of the force-bearing bracket (7) close to the plug connector (3) is connected to the lower shell (2), and the force-bearing bracket (7) and the lower shell (2) have at least one connection point.

3. The force-bearing mechanism of the child safety seat according to claim 1, characterized in that: The force-bearing bracket (7) comprises a force-bearing plate (71), and the force-bearing plate (71) is arranged parallel to the length extension direction of the connector (3); The force-bearing plate (71) is provided with a first connecting block (72) and a second connecting block (73) at one end thereof close to the guide member (6), and the first connecting block (72) and the second connecting block (73) are arranged at intervals along the length extension direction of the force-bearing plate (71); The first connecting block (72) and the second connecting block (73) are bent toward the guide member (6), and the guide member (6) and the force-bearing bracket (7) are connected via the first connecting block (72) and the second connecting block (73).

4. The force-bearing mechanism of the child safety seat according to claim 3, characterized in that: The load-bearing plate (71) is provided with a first connecting portion (711) and a second connecting portion (712), and the first connecting portion (711) and the second connecting portion (712) are arranged at intervals along the length extension direction of the load-bearing plate (71); One end of the connector (3) close to the leg bracket (4) is connected to the load-bearing plate (71) via the first connecting portion (711), and the other end of the connector (3) is connected to the load-bearing plate (71) via the second connecting portion (712).

5. The force-bearing mechanism of the child safety seat according to claim 3, characterized in that: The force-bearing bracket (7) further includes a third connecting block (74), the third connecting block (74) being connected to one end of the force-bearing plate (71) close to the guide member (6), the third connecting block (74) being bent in a direction away from the guide member (6), and the upper shell (1) and the force-bearing bracket (7) being connected via the third connecting block (74).

6. The force-bearing mechanism of the child safety seat according to claim 3, characterized in that: A fourth connecting block (75), a fifth connecting block (76) and a sixth connecting block (77) are provided at one end of the force-bearing plate (71) close to the plug connector (3); and the lower shell (2) and the force-bearing bracket (7) are connected via the fourth connecting block (75), the fifth connecting block (76) and the sixth connecting block (77); Wherein, the fourth connecting block (75) is provided with a side of the force-bearing plate (71) facing the plug connector (3), and the fourth connecting block (75) is bent in the direction of the plug connector (3); The fifth connecting block (76) and the sixth connecting block (77) are arranged on a side of the force-bearing plate (71) facing away from the plug connector (3), and the fifth connecting block (76) and the sixth connecting block (77) are bent in a direction away from the plug connector (3).

7. The force-bearing mechanism of the child safety seat according to claim 3, characterized in that: A limiting plate (79) is provided at one end of the force-bearing plate (71) close to the guide member (6), the limiting plate (79) is bent toward the guide member (6), and the limiting plate (79) is located between the leg support (4) and the guide member (6); The limiting plate (79) is located between the first connecting block (72) and the second connecting block (73).

8. The force-bearing mechanism of the child safety seat according to claim 3, characterized in that: At least two weight-reducing holes (714) are provided on the load-bearing plate (71), and the weight-reducing holes (714) are distributed at intervals on the load-bearing plate (71).

9. The force-bearing mechanism of a child safety seat according to any one of claims 1 to 8, characterized in that: It also includes a lubricating member (8), which is connected to the end of the support bracket (5) close to the guide member (6), and the lubricating member (8) can be used to prevent the support bracket (5) from contacting the guide member (6); The lubricating member (8) comprises a limiting portion (81), the limiting portion (81) extending toward the guide member (6), and the limiting portion (81) is used to limit the bottom of the guide member (6).

10. The force-bearing mechanism of the child safety seat according to claim 9, characterized in that: A reinforcing portion (11) is provided at one end of the upper shell (1) close to the support bracket (5), and the reinforcing portion (11) extends toward the lubricating member (8). The reinforcing portion (11) is located between the guide member (6) and the support bracket (5), and the reinforcing portion (11) is used to prevent the guide member (6) from contacting the support bracket (5).

Images