Supporting leg mechanism and child safety seat

Abstract

The utility model discloses a supporting leg mechanism and a child safety seat, the supporting leg mechanism comprises a seat base, a connecting piece and a supporting assembly, the connecting piece is arranged on the seat base, the supporting assembly comprises a first end and a second end, the first end is suitable for being hinged to the connecting piece, and the second end is suitable for being hinged to the connecting piece; the supporting assembly is arranged on the seat base so that the supporting assembly can rotate between an unfolding position and a folding position relative to the seat base, a magnetic attraction piece is further arranged on the end face of the first end, and when the supporting assembly rotates to the unfolding position, the magnetic attraction piece is suitable for being matched with the connecting piece in an attraction mode so that the supporting assembly can be kept at the unfolding position. According to the supporting leg mechanism, the supporting assembly is stabilized at the unfolding position through adsorption matching of the magnetic attraction piece and the connecting piece, the structure is simple, rapid fixing and releasing of the supporting assembly can be achieved, and therefore the situation that the supporting assembly rotates relative to the seat base in the using process of the supporting leg mechanism is avoided; and the situation that the supporting assembly shakes and is not stable in the using process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of child safety seats, and particularly relates to a support leg mechanism and a child safety seat. Background Art

[0002] A child safety seat is a child safety protection system designed for children of different ages (or weights), which can be fixed to a motor vehicle and consists of a seat belt assembly or flexible component with an ISOFIX interface, an adjustment mechanism, accessories, etc. In the event of a car collision or sudden deceleration, the five-point seat belt on the child safety seat can restrain the child occupant within the child safety seat, reduce the impact force on the child occupant, and limit the body movement of the child, thereby reducing the harm to them. Various types of child safety seats usually also have support legs provided under the seat base to protect infants and toddlers during a car collision. The seat base can be stably placed on the car seat by the support of the support legs, preventing the seat base from accidentally tipping over relative to the car seat during a forward collision or sudden deceleration of the car.

[0003] In addition, a child safety seat also has an opening fixing mechanism to fix the support legs in the open position to prevent the support legs from shaking and becoming unstable during use, which affects the safety of the child safety seat. Most of the existing opening fixing mechanisms of child safety seats directly set limit bumps on the base or use multiple components for limiting. However, directly setting limit bumps on the base will result in poor control of the force value required to deploy or fold the support legs, the limit bumps cannot perform the limiting function after long-term use, and there will also be wear marks at the positions where the support legs contact the limit bumps, affecting the appearance; while using multiple components for limiting has a higher cost, and additional parts are required to occupy the limited space of the base. Summary of the Invention

[0004] An object of the present application is to provide a support leg mechanism with a simple structure and stable performance, which can conveniently and reliably achieve the quick fixing and release of the support component.

[0005] Another object of the present application is to provide a child safety seat.

[0006] To achieve the above purposes, the technical solution adopted in the present application is as follows: A support leg mechanism includes a seat base, a connecting member, and a support component. The connecting member is arranged on the seat base. The support component includes a first end and a second end. The first end is adapted to be hinged to the connecting member, so that the support component can rotate relative to the seat base between an unfolded position and a folded position. A magnetic member is further arranged on the end face of the first end. When the support component rotates to the unfolded position, the magnetic member is adapted to be adsorbed and cooperate with the connecting member to hold the support component in the unfolded position.

[0007] As a preference, an installation groove is formed on the end face of the first end portion, the magnetic attraction member is embedded in the installation groove, the depth of the installation groove is adapted to the thickness of the magnetic attraction member, so that the upper end face of the magnetic attraction member and the end face of the first end portion are in the same plane. Further, when the magnetic attraction member is in adsorption cooperation with the connecting member, the end face of the first end portion can be attached to the connecting member.

[0008] As another preference, the connecting member includes a main fixing plate and two side fixing plates. The two side fixing plates are vertically arranged on the left and right sides of the main fixing plate, so that the connecting member has a U-shaped structure. Hinge holes are formed on both of the two side fixing plates, and the supporting assembly can be hinged to the connecting member through a shaft pin arranged on the first end portion and in cooperation with the hinge holes.

[0009] Further preferably, an installation portion is arranged on the seat base, the connecting member is adapted to be installed in the installation portion, and the side fixing plate of the connecting member is attached to the side wall of the installation portion. A hinge seat is further formed on the side wall of the installation portion, the position of the hinge seat corresponds to that of the hinge hole, and the shaft pin is adapted to extend into the hinge seat after passing through the hinge hole and cooperate with the hinge seat, so that the supporting assembly is hinged to the seat base.

[0010] Further, a limiting portion is further arranged on the seat base, and the limiting portion is arranged on the front side of the installation portion. When the supporting assembly rotates to the unfolded position, the limiting portion is adapted to be in abutting cooperation with the supporting assembly to limit further rotation of the supporting assembly relative to the seat base.

[0011] Further, the included angle between the supporting assembly in the unfolded position and the seat base is not less than 90°.

[0012] Further, a receiving portion with a downward opening is arranged on the seat base, the receiving portion extends along the front-back direction of the seat base, the front end of the receiving portion is communicated with the installation portion, the rear end of the main fixing plate is installed on the top wall of the receiving portion through a fastener, and the side fixing plate is clamped between the side wall of the receiving portion and the side wall of the installation portion. When the supporting assembly rotates to the folded position, the supporting assembly can be received in the receiving portion.

[0013] Further, the seat base is further provided with upward protruding reinforcing ribs on the top wall of the receiving portion, and the reinforcing ribs extend along the front-back direction of the seat base.

[0014] Further, the number of the reinforcing ribs is two, and the positions of the two reinforcing ribs respectively correspond to the two side walls of the receiving portion.

[0015] In addition, the present application provides a child safety seat, including the support leg mechanism as described above.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows:

[0017] The support component can rotate between the folded position and the unfolded position. When the support component is in the folded position, the support component is received in the receiving portion and fits closely with the seat base, which is convenient for storage and transportation. When the support component needs to be used, the support component can be easily rotated to the unfolded position. At this time, the magnetic member on the support component is adsorbed and cooperated with the connecting member to firmly fix the support component in the unfolded position. If the support component needs to be folded, the user only needs to apply a folding force to the support component to overcome the magnetic force, separate the magnetic member from the connecting member, and the support component rotates to the folded position. The structure of the present application is simple and convenient to use, makes full use of the characteristics of magnetism, realizes the rapid fixation and release of the support component, and will not show a decline in the firmness effect after long-term use, nor will there be wear scratches left on the support component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the support leg mechanism of the present application.

[0019] Figure 2 It is an exploded structural schematic diagram of the support leg mechanism of the present application.

[0020] Figure 3 It is a sectional view of the support component of the support leg mechanism of the present application in the folded position.

[0021] Figure 4 It is a sectional view of the support component of the support leg mechanism of the present application in the unfolded position.

[0022] In the figure: 100, seat base; 110, installation portion; 111, hinge seat; 120, receiving portion; 130, limiting portion; 140, reinforcing rib; 200, connecting member; 210, main fixing plate; 220, side fixing plate; 221, hinge hole; 300, support component; 310, first end; 311, installation groove; 312, pin; 320, second end; 400, magnetic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, any combination of the following-described embodiments or technical features can form a new embodiment.

[0024] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0026] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0027] As Figures 1-4 shown, an embodiment of the present application provides a support leg mechanism, which includes a seat base 100, a connecting member 200, and a support assembly 300. The connecting member 200 and the support assembly 300, and the support assembly 300 includes a first end 310 and a second end 320. The first end 310 is adapted to be hinged to the connecting member 200, so that the support assembly 300 can rotate relative to the seat base 100 between an unfolded position and a folded position. A magnetic member 400 is further provided on the end face of the first end 310. When the support assembly 300 rotates to the folded position, the support assembly 300 fits against the seat base 100; when the support assembly 300 rotates to the unfolded position, the magnetic member 400 is adapted to be adsorbed and cooperate with the connecting member 200 to hold the support assembly 300 in the unfolded position. At this time, the second end 320 of the support assembly 300 is adapted to be in abutting cooperation with the carriage floor to support the seat base 100. The present application uses the adsorption cooperation between the magnetic member 400 and the connecting member 200 to firmly fix the support assembly 300 in the unfolded position. The structure is simple and easy to use. By utilizing the characteristics of magnetism, the rapid fixation and release of the support assembly 300 are realized, which can avoid the situation of shaking and instability of the support assembly 300 during use, and further improve the safety of the support leg mechanism.

[0028] Specifically, an installation part 110 for installing the connecting piece 200 is provided on the seat base 100. The installation part 110 is provided with a through hole, and the side wall of the installation part 110 encloses to form an installation space; a receiving part 120 with an opening facing downward is further provided on the seat base 100. The receiving part 120 includes a top wall and two relatively arranged side walls. The top wall of the receiving part 120 and the side walls of the receiving part enclose to form a receiving space. The front end of the receiving part 120 is communicated with the installation part 110, so that the receiving space and the installation space are communicated with each other. When the support assembly 300 rotates to the folded position, the support assembly 300 is received in the receiving part 120. When the support assembly 300 rotates to the unfolded position, the support assembly 300 rotates out of the receiving part 120, and the second end 320 of the support assembly 300 abuts against the carriage floor to support the seat base 100.

[0029] The connecting piece 200 includes a main fixing plate 210 and two side fixing plates 220. The two side fixing plates 220 are vertically arranged on the main fixing plate 210, and the two side fixing plates 220 are integrally formed and connected with the main fixing plate 210, so that the connecting piece 200 has a U-shaped structure. When the connecting piece 200 is installed in the installation part 110 and located in the installation space, the rear end of the main fixing plate 210 is attached above the top wall of the receiving part 120 and is connected to the top wall of the receiving part 120 through fasteners such as bolts. The front ends of the two side fixing plates 220 are respectively attached to the two side walls of the installation part 110, and the rear ends of the two side fixing plates 220 are respectively attached to the two side walls of the receiving part 120, so that the side fixing plates 220 are clamped between the side wall of the installation part 110 and the side wall of the receiving part 120, realizing the stable connection between the connecting piece 200 and the seat base 100.

[0030] Hinge holes 221 are provided on both side fixing plates 220 of the connecting piece 200. A pin 312 matched with the hinge holes 221 is provided at the first end 310 of the support assembly 300. Further, the support assembly 300 can be hinged to the connecting piece 200 through the cooperation of the pin 312 and the hinge holes 221. A hinge seat 111 is further provided on the side wall of the installation part 110. The position of the hinge seat 111 corresponds to the position of the hinge holes 221. The pin 312 can extend into the hinge seat 111 after passing through the hinge holes 221 to cooperate with the hinge seat 111, so that the support assembly 300 is hinged to the seat base 100, further improving the stability of the connection of the support assembly 300.

[0031] Further, an installation groove 311 is formed on the end face of the first end portion 310 of the support assembly 300. The magnetic member 400 is embedded in the installation groove 311. The depth of the installation groove 311 is adapted to the thickness of the magnetic member 400. When the magnetic member 400 is embedded in the installation groove 311, the top end face of the magnetic member 400 is in the same plane as the end face of the first end portion 310. Further, when the support assembly 300 rotates to the deployed position and the magnetic member 400 is adsorbed and cooperated with the connecting member 200, the end face of the first end portion 310 can be attached to the main fixing plate 210, thereby improving the stability of the support assembly 300 when it is in the deployed position.

[0032] It is worth mentioning that the material of the connecting member 200 can be implemented as any material that can be adsorbed by a magnet, such as iron, cobalt, nickel and their alloys.

[0033] In some preferred embodiments, a limiting portion 130 is further provided on the seat base 100. The limiting portion 130 is arranged on the front side of the installation portion 110. The limiting portion 130 is adapted to abut against the first end portion 310 of the support assembly 300 to prevent the support assembly 300 in the deployed position from further rotating. Specifically, when the support assembly 300 rotates to the deployed position, in addition to the end face of the first end portion 310 of the support assembly 300 being attached and abutted against the main fixing plate 210, the side portion of the first end portion 310 also abuts against the limiting portion 130, restricting the support assembly 300 from further rotating relative to the seat base 100, improving the stability of the support assembly 300, and preventing the support assembly 300 from further rotating relative to the seat base 100 after being impacted when the vehicle collides or decelerates suddenly, so that the support leg mechanism cannot play a supporting role for the seat base 100, and the safety of the support leg mechanism is greatly reduced. The included angle between the support assembly 300 in the deployed position and the seat base 100 is not less than 90°. Preferably, the included angle between the support assembly 300 in the deployed position and the seat base 100 is 90°. The included angle of 90° between the support assembly 300 and the seat base 100 can make the force exerted by the support assembly 300 on the seat base 100 perpendicular to the seat base 100, improving the supporting effect of the support assembly 300 on the seat base 100.

[0034] Further, a raised reinforcing rib 140 is further provided on the seat base 100. The reinforcing rib 140 is arranged above the top wall of the receiving portion 120 and extends along the front-rear direction of the seat base 100 to improve the structural strength of the seat base 100. Preferably, Figures 1-4In the illustrated embodiment, the number of the reinforcing ribs 140 is two, and the positions of the two reinforcing ribs 140 respectively correspond to the positions of the two side walls of the receiving portion 120. The arrangement of the reinforcing ribs 140 can improve the structural strength of the seat base 100, and avoid damage to the seat base 100 caused by impact during vehicle collision or sudden deceleration, so as to prevent the child occupant in the child safety seat from being injured due to the inability to protect the child occupant.

[0035] On the other hand, the present application further provides a child safety seat, which includes the support leg mechanism as described above. The support leg mechanism and the structure of the child safety seat are simple, convenient for assembly, and have low production costs. The support assembly 300 can be quickly fixed and released, the operation is simple, and the fixing effect of the support assembly 300 will not decay after long-term use, and no wear marks will be left on the support assembly 300.

[0036] The foregoing has described the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements will occur to the present application, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A support leg mechanism, characterized in that: It includes a seat base, a connecting member and a support assembly, wherein the connecting member is arranged on the seat base, and the support assembly includes a first end and a second end, wherein the first end is suitable for being hinged to the connecting member so that the support assembly can rotate between an unfolded position and a folded position relative to the seat base, and a magnetic member is also arranged on the end surface of the first end, and when the support assembly is rotated to the unfolded position, the magnetic member is suitable for being adsorbed and cooperated with the connecting member to keep the support assembly in the unfolded position.

2. The support leg mechanism according to claim 1, characterized in that: A mounting groove is provided on the end surface of the first end portion, and the magnetic attraction component is embedded in the mounting groove. The depth of the mounting groove is adapted to the thickness of the magnetic attraction component, so that the upper end surface of the magnetic attraction component and the end surface of the first end portion are in the same plane, and then when the magnetic attraction component and the connecting component are adsorbed and matched, the end surface of the first end portion can be attached to the connecting component.

3. The support leg mechanism according to claim 2, characterized in that: The connecting member includes a main fixing plate and two side fixing plates, and the two side fixing plates are vertically arranged on the left and right sides of the main fixing plate, so that the connecting member has a U-shaped structure. Both side fixing plates are provided with hinge holes, and the support assembly can be hinged to the connecting member by cooperating with the hinge hole through an axle pin arranged at the first end.

4. The support leg mechanism according to claim 3, characterized in that: A mounting portion is provided on the seat base, the connecting member is suitable for being installed in the mounting portion, and the side fixing plate of the connecting member is in contact with the side wall of the mounting portion. A hinge seat is also provided on the side wall of the mounting portion, and the position of the hinge seat corresponds to the hinge hole. The axle pin is suitable for passing through the hinge hole and extending into the hinge seat to cooperate with the hinge seat, so that the support assembly is hinged to the seat base.

5. The support leg mechanism according to claim 4, characterized in that: The seat base is also provided with a limiting portion, which is arranged on the front side of the mounting portion. When the support assembly is rotated to the unfolded position, the limiting portion is suitable for abutting and cooperating with the support assembly to limit further rotation of the support assembly relative to the seat base.

6. The support leg mechanism according to claim 5, characterized in that: The angle between the support assembly in the unfolded position and the seat base is not less than 90°.

7. The support leg mechanism according to claim 4, characterized in that: The seat base is provided with a receiving portion with an opening facing downward, the receiving portion extends along the front-to-rear direction of the seat base, the front end of the receiving portion is connected with the mounting portion, the rear end of the main fixing plate is mounted on the top wall of the receiving portion by a fastener, the side fixing plate is clamped between the side wall of the receiving portion and the side wall of the mounting portion, and when the support assembly is rotated to the folded position, the support assembly can be received in the receiving portion.

8. The support leg mechanism according to claim 7, characterized in that: The seat base is further provided with an upwardly protruding reinforcing rib on the top wall of the accommodating portion, and the reinforcing rib extends along the front-rear direction of the seat base.

9. The support leg mechanism according to claim 8, characterized in that: The number of the reinforcing ribs is two, and the positions of the two reinforcing ribs correspond to the two side walls of the receiving portion respectively.

10. A child safety seat, characterized in that: It comprises a supporting leg mechanism as described in any one of claims 1-9.

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