Child safety seats and support components

Abstract

The present invention relates to a child safety seat and a support assembly thereof. The support assembly of the child safety seat provided by the present invention is suitable for installing a base of a seat body of the child safety seat, and the support assembly comprises at least one support leg bracket, the at least one support leg bracket is connected to the base and extends obliquely upward relative to the bottom surface of the base, each of the support leg brackets is used to install a support leg, and at least one of the support leg brackets is provided with a support element for abutting against the outer shell of the seat body.

Description

Technical Field

[0001] The invention relates to the field of child safety seats, in particular to a child safety seat and a supporting component thereof. Background Art

[0002] Child safety seats are usually arranged on seats of vehicles to protect children riding in the child safety seats from impacts or other sudden changes in motion (such as sudden deceleration).

[0003] Child safety seats are divided into infant carriers, child safety seats fixedly connected to a base, and child seats rotatably connected to a base, depending on their functions and applicable ages. Child safety seats fixedly connected to a base are usually fixed to a vehicle seat in a forward-facing manner, which is more suitable for older children. Child safety seats rotatably connected to a base are more suitable for younger children because they can be easily installed in a rearward direction. Child safety seats can be supported on a seat in a vehicle through a corresponding base, and the ISOFIX plug configured on the base is plugged into the ISOFIX socket of the vehicle seat to fix the front and rear position and left and right position of the child safety seat. In addition, a top support bracket is configured at the rear end of the base, which is used to abut against the backrest of the vehicle seat to prevent the child safety seat from tipping over backward. Support legs are usually installed at the front end of the base, and the length of the support legs can usually be adjusted to abut against the floor in the vehicle, thereby preventing the child safety seat from tipping over forward. Summary of the invention

[0004] The object of the present invention is to provide a technical solution that can further improve the anti-tipping capability of a child safety seat, thereby providing better protection for children in the child safety seat.

[0005] In one aspect, the present invention provides a support assembly for a child safety seat, which is suitable for installing a base of a seat body of the child safety seat, the support assembly comprising at least one support leg bracket, the at least one support leg bracket being connected to the base and extending obliquely upward relative to the bottom surface of the base, each support leg bracket being used for installing a support leg, and at least one support leg bracket being provided with a supporting element for abutting against an outer shell of the seat body.

[0006] Further, the abutment element is made of a material that can play a buffering role; and / or, the abutment element has a contact surface for contacting the outer shell of the seat body, and the contact surface of the abutment element is provided with a plurality of first protrusions; and / or, the abutment element is installed at the upper end of the corresponding support leg bracket.

[0007] Further, each of the first protrusions extends transversely, and the plurality of first protrusions are arranged sequentially along the contact surface of the abutting element in the longitudinal direction.

[0008] Furthermore, the cross-section of each of the first protrusions is arc-shaped, trapezoidal, triangular or rectangular.

[0009] Furthermore, the cross-section of the plurality of first protrusions is in a continuous first wave shape or a first tooth shape.

[0010] Further, each of the supporting leg brackets is arc-shaped; and / or, the supporting leg brackets are configured as two, the two supporting leg brackets are arranged substantially symmetrically about the longitudinal center plane of the base, and the abutment element is provided on each of the supporting leg brackets.

[0011] Furthermore, each of the abutment elements has a contact surface for contacting the outer shell of the seat body, and the contact surface of each of the abutment elements is inclined relative to the longitudinal center plane; and / or, each of the abutment elements is respectively located at the upper end of the corresponding support leg bracket.

[0012] Furthermore, it also includes the supporting leg, the upper end of the supporting leg is pivotally connected to the upper ends of the two supporting leg brackets, and the pivoting angle of the supporting leg is limited by an angle limiting device.

[0013] Furthermore, the angle limiting device comprises a tensionable webbing, both ends of which are respectively suitable for connection with the base, and a middle portion of the webbing is wound around a middle portion of the supporting leg.

[0014] Furthermore, both ends of the webbing are suitable for being hooked onto the hook body of the base; and / or, a slot for accommodating the webbing is provided in the middle of the supporting leg.

[0015] Further, the supporting leg includes a leg and a cross beam located at the upper end of the leg, and the two ends of the cross beam are respectively connected to the upper ends of the two supporting leg brackets through connecting parts; wherein, the upper end of each supporting leg bracket is pivotally connected to the corresponding connecting part through a first pin shaft, and the two ends of the cross beam are respectively pivotally connected to the corresponding connecting part through a second pin shaft, and the first pin shaft and the second pin shaft are parallel to each other.

[0016] Furthermore, the base includes a base frame and a support base; the support base is located in the middle of the base frame and has a rotation center for installing the seat body that can rotate around the rotation center; wherein the support base has a first locking structure for limiting the rotation position of the seat body; the at least one support leg bracket is connected to the base frame.

[0017] The support assembly of the child safety seat provided by the present invention, by arranging a supporting element on the support leg bracket, the support leg can directly or indirectly support the outer shell of the child safety seat through the supporting element, which can effectively improve the anti-forward tipping ability of the child safety seat, thereby providing better protection for the child in the child safety seat.

[0018] On the other hand, the present invention provides a child safety seat, comprising a base and a seat body, wherein the seat body is rotatably mounted on the base, the base is equipped with a support leg bracket, the support leg bracket is equipped with a support leg, and the outer shell of the seat body has at least one pressing portion, each of the pressing portions is used to abut against a supporting element on the support leg bracket or a supporting element on the support leg.

[0019] Furthermore, the seat body is detachably mounted on the base.

[0020] Furthermore, the pressing portion is located on an outer shell of a backrest portion of the seat body.

[0021] Further, each of the pressing portions extends along the surface of the shell in the longitudinal direction, and the shell forms a limiting recess above the pressing portion, and the limiting recess is used to engage with the abutting element to limit the forward tilting movement of the shell.

[0022] Furthermore, the pressing portion smoothly transitions to the limiting recess.

[0023] Further, each of the pressing portions has a contact surface for contacting the abutting element, and the contact surface of each of the pressing portions is provided with a plurality of second protrusions.

[0024] Further, each of the pressing portions extends along the surface of the housing in the longitudinal direction, each of the second protrusions extends laterally, and the plurality of second protrusions are sequentially arranged along the contact surface of the pressing portion in the longitudinal direction.

[0025] Furthermore, the cross-section of each of the second protrusions is arc-shaped, trapezoidal, triangular or rectangular.

[0026] Furthermore, the cross-sections of the plurality of second protrusions are in a continuous second wave shape or a second tooth shape.

[0027] Furthermore, the seat body is rotatably mounted on the base, and the seat body is provided with a second locking structure for locking the rotation position of the seat body.

[0028] Furthermore, the second locking structure includes: a button having a locking position and an unlocking position on its moving path; an elastic element for keeping the button in the locking position; and a locking pin operably connected to the button to be able to lock or unlock the seat body.

[0029] Further, the seat body includes a locking pin fixing seat, which is provided with a sleeve, the axial direction of the sleeve is perpendicular to the moving direction of the button, and the hole wall of the sleeve is provided with an axially extending first guide hole; the locking pin is slidably sleeved in the sleeve, and the locking pin has a first guide column extending from the first guide hole; the button is provided with a second guide hole, the second guide hole extends obliquely relative to the moving direction of the button, the first guide column extends into the second guide hole and slidably cooperates with the second guide hole; when the button switches between the locked position and the unlocked position, the first guide column cooperates with the first guide hole and the second guide hole, so that the locking pin can extend to lock the seat body or retract to unlock the seat body.

[0030] Further, the button has a receiving recess for receiving the sleeve, and the elastic element is a spring and is installed between the side wall of the receiving recess and the outer wall of the sleeve; and / or, the button is provided with a third guide hole, the extension direction of the third guide hole is parallel to the moving direction of the button, and the locking pin fixing seat is provided with a protrusion extending into the third guide hole.

[0031] The child safety seat provided by the present invention provides a support element on the support leg bracket or the support leg, and correspondingly provides a pressure portion on the outer shell of the seat body. The support leg can directly or indirectly support the pressure portion through the support element, thereby providing auxiliary anti-tilt support for the outer shell of the seat body. This can effectively improve the anti-tilt capability of the child safety seat and provide better protection for the child in the child safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A front perspective view of a mounting structure of a child safety seat provided according to an embodiment of the present invention is shown;

[0033] Figure 2 A rear perspective view of a mounting structure of a child safety seat provided according to an embodiment of the present invention is shown;

[0034] Figure 3 A side view of a mounting structure of a child safety seat provided according to an embodiment of the present invention is shown;

[0035] Figure 4 Shows Figure 2A CC sectional view of the mounting structure of the child safety seat shown;

[0036] Figure 5 Shows Figure 4 The enlarged view of point B in the figure;

[0037] Figure 6 A three-dimensional diagram showing a use state of a support assembly of a child safety seat provided according to an embodiment of the present invention;

[0038] Figure 7 A perspective view of a base frame and a support leg in a support assembly of a child safety seat provided according to an embodiment of the present invention is shown;

[0039] Figure 8 A top perspective view showing a use state of a support assembly of a child safety seat provided according to an embodiment of the present invention;

[0040] Fig. 9 Shows Figure 6 and Figure 8 A perspective view of the transport state of the support assembly of the child safety seat shown;

[0041] Fig.10 A rear perspective view of a child safety seat provided according to an embodiment of the present invention is shown;

[0042] Fig.11 A perspective view of a second locking structure of a child safety seat provided according to an embodiment of the present invention is shown;

[0043] Fig.12 A three-dimensional view of some components of a second locking structure of a child safety seat provided according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0044] Figures 1 to 4 A view of a child safety seat 100 according to an embodiment of the present invention is shown. The child safety seat 100 includes a support assembly 1A of the child safety seat 100 provided according to an embodiment of the present invention (hereinafter referred to as the support assembly 1A) and a seat body 2A of the child safety seat 100 provided according to an embodiment of the present invention. The support assembly 1A and the seat body 2A will be described together here.

[0045] See also Figure 2The child safety seat 100 includes a base 11, and the support assembly 1A is suitable for the base 11. The base 11 is used to be placed on a vehicle seat (not shown) and used to install a seat body 2A of the child safety seat 100. In some embodiments, the base 11 can be fixedly connected to the seat body 2A. In some embodiments, the base 11 can be rotatably connected to the seat body 2A. In some embodiments, the base 11 and the seat body 2A are in a detachable connection relationship.

[0046] The support assembly 1A includes at least one support leg bracket 111. Each support leg bracket 111 is connected to the base 11 and is, for example, arranged near the front end of the base 11. The support assembly 1A may also include a support leg 16, which is used to be mounted to the support leg bracket 111, and the lower end of the support leg 16 is used to abut against the floor inside the vehicle. The base 11 may include a top support bracket 112 arranged at the rear, which is inclined relative to the bottom surface of the base 11 for abutting against the backrest of the vehicle seat. The rear end of the base 11 may also be installed with an ISOFIX plug 118 to engage with the ISOFIX socket of the vehicle seat.

[0047] It should be noted that, unless otherwise specified, the directional terms such as "front", "rear", "left", "right", "up" and "down" in this embodiment correspond to the "front", "rear", "left", "right", "up" and "down" directions of the vehicle, and these directional terms are only used to make the description of the embodiments of the present invention clearer and are not intended to improperly limit the scope of protection of the present invention.

[0048] In the embodiment where the base 11 is rotatably connected to the seat body 2A, the seat body 2A can be mounted on the base 11 in a forward direction or in a reverse direction. Figure 1 That is, it shows a three-dimensional view in which the seat body 2A is reversely installed on the base 11. It can be understood that the face of the child sitting on the reversely installed seat body 2A faces backward.

[0049] Combined with reference Figure 1 , Figures 6 to 8In some embodiments, the base 11 may include a base frame 11a and a support seat 11b. The base frame 11a may be mainly made of metal pipes and plates, but the present invention is not limited thereto. Other materials such as plastic, plastic steel or alloy are also within the protection scope of the present invention. The support seat 11b may be made of, for example, hard plastic. The top support bracket 112 and the support leg bracket 111 may be connected to the bottom frame 11a. The support seat 11b is arranged in the middle of the base frame 11a, and is used to be relatively rotatably connected to the seat body 2A. That is, the support seat 11b is used as a turntable and has a rotation center RR, and the seat body 2A can rotate around the rotation center RR. In addition, the support seat 11b may have a first locking structure 110 (see Figure 8 ), a second locking structure 23 (see Fig.11 ), the rotational position of the seat body 2A can be locked or unlocked by engaging or disengaging the first locking structure 110 and the second locking structure 23. The first locking structure 110 and the second locking structure 23 can cooperate to form a locking device for locking the rotational position of the seat body 2A, and examples of the two will be described in detail below.

[0050] Combined with reference Figures 2 to 4 as well as Figure 6 and Figure 7 In some embodiments, the support leg bracket 111 extends obliquely upward relative to the bottom surface of the base 11, and the support leg bracket 111 may be provided with a support element 12 for abutting against the shell 21 of the seat body 2A. The support leg bracket 111 may extend forward and upward relative to the bottom surface of the base 11 so as to abut against the shell 21 of the seat body 2A and engage with the support leg 16. In some embodiments, the support leg bracket 111 is, for example, arc-shaped or has other suitable shapes. In combination with relevant technologies, it can be known that the seat body 2A usually has a relatively hard shell 21, and the inner compartment of the shell 21 is arranged with elastic padding, and the surface of the padding that is used to contact the child's body is usually covered with fabric. See. Figure 3 When the vehicle brakes suddenly due to an accident, the seat body 2A will tip forward in the direction of arrow F under the action of inertia, and the movement of the support leg bracket 111 is limited by the support leg 16, so the abutment element 12 can be tightly abutted against the shell 21. At this time, the support leg 16 indirectly supports the shell 21 of the seat body 2A through the support leg bracket 111 and the abutment element 12, which can effectively prevent the seat body 2A from tilting forward, thereby better protecting the child in the seat body 2A.

[0051] See also Figures 6 to 9In some embodiments, the connection position between the support leg 16 and the support leg bracket 111 is adjacent to the abutment element 12, which is conducive to transmitting the support force of the support leg 16 to the abutment element 12 in a short distance, thereby providing a good auxiliary support effect for the housing 21. For example, the support leg 16 can be connected to the upper end of the support leg bracket 111, and the abutment element 12 can be disposed at the upper end of the support leg bracket 111.

[0052] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 In some embodiments, the base 11 of the support assembly 1A may be configured with two support leg brackets 111, the two support leg brackets 111 are arranged substantially symmetrically about the longitudinal center plane S of the base 11, and the two support leg brackets 111 are respectively installed with abutment elements 12. For example, the abutment elements 12 are respectively installed at the upper ends of the corresponding support leg brackets 111. In some embodiments, in order to further optimize the structure, the support leg 16 may include a leg 161 and a crossbeam 162 located at the upper end of the leg 161, and the upper end of the leg 161 is connected to the middle of the crossbeam 162. The two ends of the crossbeam 162 may be pivotally connected to the upper ends of the two support leg brackets 111. The leg 161 and the crossbeam 162 are, for example, welded together or integrally formed, and the leg 161 is, for example, a retractable leg. In this way, by adjusting the length and pivot angle of the support leg 16, the support leg 16 can be in a normal use state, thereby effectively preventing the child safety seat from tilting forward. Of course, in some other embodiments, the leg 161 may also be a fixed length leg.

[0053] In some embodiments, the abutting element 12 may be made of a cushioning material that can play a cushioning role, so that the abutting element 12 also has a shock absorbing effect. For example, the abutting element 12 may be made of hytrel, TPE (thermoplastic elastomer) or any other suitable material. In some embodiments, the contact surface of the abutting element 12 for contacting the shell 21 of the seat body 2A may be provided with a plurality of first protrusions 121, and the first protrusions 121 are used to increase the friction between the abutting element 12 and the shell 21. In some embodiments, the shape of the contact surface of the abutting element 12 is adapted to the surface shape of the shell 21.

[0054] See also Figure 2 and Figure 3In some embodiments, the seat body 2A can be rotatably mounted on the base 11, and the outer shell 21 of the seat body 2A has at least one pressing portion 22, and each pressing portion 22 is used to abut against the abutting element 12 on the support leg bracket 111. It can be understood that when the vehicle brakes suddenly, the part of the outer shell 21 that abuts against the abutting element 12 will be subjected to relatively large pressure. In this way, the pressing portion 22 can be a structure specially provided on the outer shell 21 corresponding to the abutting element 12, so as to partially enhance the structural strength of the outer shell 21 and prevent the outer shell 21 from being broken when subjected to the suddenly increased pressure from the abutting element 12.

[0055] It can be understood that the seat body 2A is fixed to the vehicle seat in a forward installation or reverse installation manner in a normal use state. Therefore, in some embodiments not shown, a pressing portion can be provided on the outer shell 21 of the seat portion 21a of the seat body 2A to adapt to the situation where the seat body 2A is fixed to the vehicle seat in a forward installation manner. Figure 2 In some embodiments, a pressing portion 22 may be provided on the shell 21 of the backrest portion 21b of the seat body 2A. The pressing portion 22 may be provided in a one-to-one correspondence with the abutting element 12, for example, to accommodate a situation in which the child safety seat is fixed to a vehicle seat in a reverse installation manner.

[0056] In some embodiments, the contact surface of the pressing portion 22 for contacting the abutting element 12 is provided with a plurality of second protrusions 221, and the plurality of second protrusions 221 are used to increase the friction between the pressing portion 22 and the abutting element 12. In some embodiments, the first protrusion 121 and the second protrusion 221 can be engaged in a concave-convex matching manner, for example, to better limit the forward tilting movement of the seat body 2A when the vehicle brakes suddenly.

[0057] This embodiment shows an exemplary implementation of the pressing portion 22, the first protrusion 121 and the second protrusion 221. Figure 5 and Figure 8 Each first protrusion 121 extends transversely on the corresponding abutting element 12, and the plurality of first protrusions 121 are sequentially arranged in the longitudinal direction (the direction indicated by the arrow H) along the contact surface of the abutting element 12. The cross section of each first protrusion 121 may be in the shape of an arc, a trapezoid, a triangle or a rectangle. Figure 2 and Figure 5 , each pressing portion 22 generally extends along the surface of the housing 21 in the longitudinal direction, each second protrusion 221 extends transversely on the corresponding pressing portion 22, and the plurality of second protrusions 221 are sequentially arranged in the longitudinal direction along the contact surface of the pressing portion 22. In some embodiments, the cross-section of each second protrusion 221 may be in the shape of an arc, a trapezoid, a triangle, or a rectangle.

[0058] See also Figure 5 In some embodiments, the cross-section of the plurality of first protrusions 121 may be a continuous first wave shape or a first tooth shape or other suitable shapes, and the cross-section of the plurality of second protrusions 221 may be a continuous second wave shape or a second tooth shape or other suitable shapes. In this way, the plurality of first protrusions 121 and the plurality of second protrusions 221 may be engaged with each other in a manner of being interlocked. When the vehicle brakes suddenly, the plurality of first protrusions 121 and the plurality of second protrusions 221 rub against each other, which may buffer and limit the forward tilt of the housing 21.

[0059] See also Figure 2 and Figure 3 In some embodiments, the pressing portion 22 is located at the shell 21 of the backrest portion 21b, and the shell 21 of the backrest portion 21b may form a limiting recess 210 above the pressing portion 22. For example, when the vehicle suddenly brakes and causes the shell 21 to tilt forward to a certain position along the direction of arrow F, the engagement of the limiting recess 210 and the abutting element 12 can effectively limit the further forward tilting movement of the shell 21, thereby ensuring the safety of the child in the seat body 2A. In some embodiments, the pressing portion 22 smoothly transitions to the limiting recess 210.

[0060] Combined with reference Figure 1 and Figure 8 In some embodiments, the contact surfaces of the abutting elements 12 on the two supporting leg brackets 111 for abutting against the pressing portions 22 of the shell 21 are inclined relative to the longitudinal center plane S. In this way, when the two abutting elements 12 abut against the pressing portions 22 of the shell 21, since the plurality of second protrusions 221 and the plurality of second protrusions 221 extend laterally, the seat body 2A can still move left and right when subjected to torque, so that the user can still conveniently adjust the installation direction of the seat body 2A as needed.

[0061] See also Figure 6In some embodiments, an angle limiting device for limiting the pivot angle of the support leg 16 is provided between the base 11 and the support leg 16. The angle limiting device effectively prevents the support leg 16 from unexpectedly pivoting when in use, thereby causing the support of the support leg 16 to fail. There are many implementation methods of the angle limiting device. For example, in some implementation methods, the angle limiting device may include a tensioned webbing 131, with both ends of the webbing 131 respectively connected to the base 11, and the middle of the webbing 131 passing through the middle of the support leg 16. The webbing 131 may be tensioned by adjusting its own length. In some embodiments, to facilitate the installation of the webbing 131, two hooks 103 may be provided on the base 11, and both ends of the webbing 131 may be hooked on the hooks 103 respectively. In some embodiments, a slot 160 for accommodating the webbing 131 may be provided in the middle of the leg portion 161 of the support leg 16 to prevent the webbing 131 from sliding unexpectedly along the leg portion 161 of the support leg 16 and affecting the tensioning effect of the webbing 131 .

[0062] See also Figure 6 , Figure 7 and Fig. 9 In some embodiments, the two ends of the cross beam 162 at the upper end of the support leg 16 are connected to the upper ends of the two support leg brackets 111 through the connecting member 14. The upper ends of each support leg bracket 111 are pivotally connected to the corresponding connecting member 14 through the first pin 141, and the two ends of the cross beam 162 are pivotally connected to the connecting member 14 through the second pin 142. The first pin 141 and the second pin 142 are parallel to each other. In this way, when not in use, the support leg 16 can be folded toward the base 11 to reduce the volume, thereby facilitating transportation.

[0063] Combined with reference Figure 8 , Fig.11 and Fig.12 , shows an exemplary embodiment of the first locking structure 110 and the second locking structure 23. The first locking structure 110 is, for example, a locking hole formed on the support seat 11b. It can be understood that the second locking structure 23 correspondingly includes a retractable locking pin 233. By operating the locking pin 233 to extend the locking pin 233 into the locking hole, the rotatable seat body 2A can be locked in a state of being installed on the vehicle seat in a forward direction or in a state of being installed on the vehicle seat in a reverse direction. When the locking pin 233 is withdrawn from the locking hole, the seat body 2A can rotate around the rotation center RR to change its position.

[0064] In some embodiments, refer to Fig.11 and Fig.12The second locking structure 23 may include a button 231, an elastic element 232 and the above-mentioned locking pin 233. The button 231 can be pressed so as to have a locking position and an unlocking position on its moving path. The elastic element 232 is used to keep the button 231 in the locking position. The locking pin 233 is operably connected to the button 231 so as to be able to lock or unlock the seat body 2A. For example, when the button 231 is subjected to a pressing force, the button 231 moves from the locking position to the unlocking position, and drives the locking pin 233 to withdraw from the locking hole to unlock the seat body 2A. When the pressing force on the button 231 is removed, the button 231 automatically moves from the unlocking position to the locking position under the action of the elastic element 232, and at the same time, the locking pin 233 can be driven to extend into the locking hole to lock the seat body 2A.

[0065] refer to Figures 10 to 12 In some embodiments, the seat body 2A may include a lock pin fixing seat 24, which is, for example, fixedly connected to the seat body 2A. The lock pin fixing seat 24 may be provided with a sleeve 241, the axial direction of the sleeve 241 being substantially perpendicular to the moving direction M of the button 231, and the hole wall of the sleeve 241 is provided with an axially extending first guide hole 2410. The lock pin 233 is slidably sleeved in the sleeve 241, and the lock pin 233 has a first guide column 2331 extending from the first guide hole 2410. The button 231 may be provided with a second guide hole 2312, which extends obliquely relative to the moving direction M of the button 231, and the inclination angle of the second guide hole 2312 is related to the stroke of the button 231. The first guide column 2331 of the lock pin 233 extends into the second guide hole 2312 and slidably cooperates with the second guide hole 2312. When the button 231 switches between the locked position and the unlocked position, the first guide column 2331 cooperates with the first guide hole 2410 and the second guide hole 2312 so that the locking pin 233 can be slidably extended or retracted along the sleeve 241 to lock or unlock the seat body 2A.

[0066] In some embodiments, the button 231 may have a receiving recess 2310 for receiving the sleeve 241, and the elastic element 232 may be a spring and installed between the side wall 2312 of the receiving recess 2310 and the outer wall of the sleeve 241. For example, a boss 243 for being sleeved in the first end of the spring may be provided on the outer wall of the sleeve 241, and a boss (not shown) for being sleeved in the second end of the spring may be provided on the side wall 2312, and the two bosses may be used to locate the position of the spring.

[0067] In some embodiments, the button 231 may also be provided with a third guide hole 2313, the extension direction of the third guide hole 2313 is parallel to the moving direction M of the button 231, and the locking pin fixing seat 24 is provided with a protrusion 242 extending into the third guide hole 2313, and the protrusion 242 is slidably matched with the third guide hole 2313 to guide the movement of the button 231.

[0068] It should be noted that, although the abutting element 12 is described as being arranged on the supporting leg bracket 111 in the above embodiment, in some embodiments not shown, the abutting element 12 may also be arranged on the supporting leg 16. For example, the supporting leg bracket 111 may not be tilted upward, and the middle part of the supporting leg 16 may be connected to the supporting leg bracket 111, for example, through the crossbeam 162, so that the upper end of the supporting leg 16 is close to the pressing portion 22 of the shell 21, and the abutting element 12 is arranged at the upper end of the supporting leg 16 to abut against the pressing portion 22 of the shell 21, so that the supporting leg 16 can directly support the pressing portion 22 of the shell 21 through the abutting element 12. In the case of no conflict, the features of the abutting element 12 and the pressing portion 22 may refer to the examples in the above embodiment, for example, the abutting element 12 may be made of a buffering material that can play a buffering role. Exemplarily, the middle portion of the support leg 16 is pivotally connected to the support leg bracket 111, and the upper end of the support leg 16 is capable of extending and retracting relative to the extension direction of the support leg 16, so that the extended state or retracted state of the upper end of the support leg 16 can be freely selected to allow the abutment element 12 to assist in supporting the shell 21 or not to assist in supporting the shell 21.

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A support assembly for a child safety seat, suitable for installing a base of a child safety seat, characterized in that: The support assembly includes at least one support leg bracket, the at least one support leg bracket is connected to the base and extends obliquely upward relative to the bottom surface of the base, each support leg bracket is used to install a support leg, and at least one support leg bracket is provided with a support element for abutting against the shell of the seat body, In which, the abutment element has a contact surface for contacting the shell of the seat body, the contact surface of the abutment element is provided with a plurality of first protrusions abutting against the shell of the seat body, the shell of the seat body is provided with a second protrusion, and when at least one of the supporting leg brackets abuts against the seat body, the second protrusion engages with the first protrusion.

2. The support assembly according to claim 1, characterized in that: The abutting element is made of a material capable of playing a buffering role; And / or, the abutting element is mounted on the upper end of the corresponding supporting leg bracket.

3. The support assembly according to claim 1, characterized in that: Each of the first protrusions extends transversely, and the plurality of first protrusions are arranged sequentially along the contact surface of the abutment element in the longitudinal direction.

4. The support assembly according to claim 3, characterized in that: The cross section of each of the first protrusions is arc-shaped, trapezoidal, triangular or rectangular.

5. The support assembly according to claim 3, characterized in that: The cross-section of the plurality of first protrusions is in a continuous first wave shape or a first tooth shape.

6. The support assembly according to claim 1, characterized in that Each of the supporting leg brackets is arc-shaped; And / or, the number of the supporting leg brackets is two, the two supporting leg brackets are arranged substantially symmetrically with respect to the longitudinal center plane of the base, and the abutting element is provided on each of the supporting leg brackets.

7. The support assembly according to claim 6, characterized in that: Each of the abutting elements has a contact surface for contacting the shell of the seat body, and the contact surface of each of the abutting elements is inclined relative to the longitudinal center plane; And / or, each of the abutting elements is located at the upper end of the corresponding supporting leg bracket.

8. The support assembly according to claim 6, characterized in that: It also includes the supporting leg, the upper end of which is pivotally connected to the upper ends of the two supporting leg brackets, and the pivoting angle of the supporting leg is limited by an angle limiting device.

9. The support assembly according to claim 8, characterized in that: The angle limiting device comprises a tensioned webbing, both ends of which are respectively suitable for connection with the base, and a middle portion of the webbing is wound around a middle portion of the supporting leg.

10. The support assembly according to claim 9, characterized in that Both ends of the webbing are suitable for being hooked onto the hook body of the base; and / or, a slot for accommodating the webbing is provided in the middle of the supporting leg.

11. The support assembly according to claim 8, characterized in that The supporting leg comprises a leg portion and a crossbeam located at the upper end of the leg portion, and the two ends of the crossbeam are connected to the upper ends of the two supporting leg brackets respectively through connecting pieces; Among them, the upper end of each supporting leg bracket is pivotally connected to the corresponding connecting member through a first pin shaft, and the two ends of the crossbeam are pivotally connected to the corresponding connecting member through a second pin shaft, and the first pin shaft and the second pin shaft are parallel to each other.

12. A support assembly according to any one of claims 1 to 11, characterized in that: The base comprises a base frame and a support base; The support seat is located in the middle of the base frame and has a rotation center for mounting the seat body that can rotate around the rotation center; Wherein, the support seat has a first locking structure for limiting the rotation position of the seat body; The at least one support leg bracket is connected to the base frame.

13. A child safety seat, comprising a base and a seat body, wherein the seat body is rotatably mounted on the base, the base is mounted with a support leg bracket, and the support leg bracket is mounted with a support leg, characterized in that: The outer shell of the seat body has at least one pressing portion, each of which is used to abut against a supporting element on the support leg bracket or a supporting element on the support leg. The abutting element is provided with a first protrusion, and the pressing portion is provided with a second protrusion. When the pressing portion abuts against the abutting element, the second protrusion engages with the first protrusion.

14. The child safety seat according to claim 13, characterized in that: The seat body is detachably mounted on the base.

15. The child safety seat according to claim 13, characterized in that: The pressing portion is located on the outer shell of the backrest portion of the seat body.

16. The child safety seat according to any one of claims 13 to 15, characterized in that: Each of the pressing portions extends along the surface of the shell in the longitudinal direction, and the shell forms a limiting recess above the pressing portion, and the limiting recess is used to engage with the abutting element to limit the forward tilting movement of the shell.

17. The child safety seat according to claim 16, characterized in that: The pressing portion smoothly transitions to the limiting recess.

18. The child safety seat according to any one of claims 13 to 15, characterized in that: Each of the pressing portions has a contact surface for contacting the abutting element, and the contact surface of each of the pressing portions is provided with a plurality of the second protrusions.

19. The child safety seat according to claim 18, characterized in that: Each of the pressing portions extends along the surface of the housing in the longitudinal direction, each of the second protrusions extends transversely, and the plurality of second protrusions are sequentially arranged along the contact surface of the pressing portion in the longitudinal direction.

20. The child safety seat according to claim 18, characterized in that: The cross section of each of the second protrusions is arc-shaped, trapezoidal, triangular or rectangular.

21. The child safety seat according to claim 18, characterized in that: The cross-section of the plurality of second protrusions is in a continuous second wave shape or a second tooth shape.

22. The child safety seat according to any one of claims 13 to 15, characterized in that: The seat body is rotatably mounted on the base, and the seat body is provided with a second locking structure for locking the rotation position of the seat body.

23. The child safety seat according to claim 22, characterized in that: The second locking structure includes: a button having a locking position and an unlocking position on its moving path; an elastic element for keeping the button in the locking position; and a locking pin operably connected to the button to lock or unlock the seat body.

24. The child safety seat according to claim 23, characterized in that: The seat body comprises a lock pin fixing seat, the lock pin fixing seat is provided with a sleeve, the axial direction of the sleeve is perpendicular to the moving direction of the button, and the hole wall of the sleeve is provided with an axially extending first guide hole; The locking pin is slidably sleeved in the sleeve, and the locking pin has a first guide column extending from the first guide hole; The button is provided with a second guide hole, the second guide hole extends obliquely relative to the moving direction of the button, the first guide post extends into the second guide hole and slidably cooperates with the second guide hole; When the button switches between the locking position and the unlocking position, the first guide column cooperates with the first guide hole and the second guide hole so that the locking pin can extend to lock the seat body or retract to unlock the seat body.

25. The child safety seat according to claim 24, characterized in that: The button has a receiving recess for receiving the sleeve, and the elastic element is a spring and is installed between the side wall of the receiving recess and the outer wall of the sleeve; And / or, the button is provided with a third guide hole, the extension direction of the third guide hole is parallel to the movement direction of the button, and the lock pin fixing seat is provided with a protrusion extending into the third guide hole.

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