Supporting leg structure and child safety seat

Abstract

Disclosed in the present application are a supporting leg structure and a child safety seat. The supporting leg structure comprises a seat base and a seat upper cover arranged on the seat base, wherein the seat base is provided with a supporting assembly, which can extend and retract relative to the seat base so as to switch between a folded state and a usage state; a height indicating member is movably arranged on the seat upper cover, at least one indicating area being provided on the height indicating member; and the seat upper cover is provided with an indicating window at the position corresponding to the height indicating member, and when the supporting assembly switches between the folded state and the usage state, the supporting assembly can drive the height indicating member to slide relative to the indicating window, such that the indicating area is displayed in the alternative only in the indicating window. When the supporting assembly is in the folded state or in the usage state, the height indicating member can display a height range corresponding thereto, such that a user can determine, by comparing the height range displayed by the height indicating member with the height of a child using the safety seat, whether the supporting assembly needs to be used.

Description

Support leg structure and child safety seat Technical Field

[0001] The present application relates to the field of child safety seats, and in particular to a support leg structure and a child safety seat. Background Art

[0002] A child safety seat is designed specifically for children of different heights and ages, restraining them in the car seat and effectively improving their safety. The seat bottom can be fixed during sudden braking or acceleration, protecting the child from sudden external movements. Most child safety seats also have support legs at the bottom, which act as an anti-tip device. This support leg structure supports the entire safety seat, preventing it from tipping over during sudden braking and reinforcing the seat.

[0003] For some taller children, the use of a safety seat's leg support structure is unnecessary. This structure would squeeze the child's leg space and collide with the child's legs during driving, posing a safety hazard. However, many parents are unaware of the height requirement for a child to use the leg support structure, and the leg support structure is often used incorrectly by parents. This incorrect use can cause significant damage to both the child safety seat and the child wearing it.

[0004] Summary of the Invention

[0005] One purpose of the present application is to provide a support leg structure to solve the problem that the support leg structure of the existing child safety seat lacks an applicable height indication.

[0006] Another object of the present application is to provide a child safety seat.

[0007] To achieve the above objectives, the technical solution adopted in this application is: a support leg structure, including a seat base and a seat cover arranged on the seat base, the seat base is slidably provided with a support assembly, the support assembly can be extended and retracted relative to the seat base and transformed between a folded state and a use state, a height indicator is movably provided on the seat cover, the height indicator is provided with at least one indication area, each of the indication areas is suitable for displaying different height ranges, an indication window is provided on the seat cover whose position corresponds to the height indicator, and when the support assembly is transformed between the folded state and the use state, the support assembly can drive the height indicator to slide relative to the indication window so that each of the indication areas can be displayed in the indication window.

[0008] As a preferred embodiment, a second sliding groove is provided on the height indicator, and the second sliding groove extends along the length direction of the height indicator. A positioning column that cooperates with the second sliding groove is provided on the seat cover, so that the height indicator can slide between the first working position and the second working position under the drive of the support assembly.

[0009] As another preferred embodiment, the height indicator is provided with a first indicator area and a second indicator area, the first indicator area is used to display the height range in which the support assembly does not need to be used, and the second indicator area is used to display the height range in which the support assembly needs to be used. When the height indicator slides to the first working position, the first indicator area is displayed in the indicator window, and when the height indicator slides to the second working position, the second indicator area is displayed in the indicator window.

[0010] Further preferably, the numerical value of the height range displayed in the first indicator area is greater than the numerical value of the height range displayed in the second indicator area.

[0011] Furthermore, the support assembly includes a connecting base movably arranged in the seat base and a support portion arranged on the connecting base, the support portion extends outside the seat base, and the support portion can be operated to drive the connecting base to slide back and forth between an extended position and a retracted position. When the support assembly is in a folded state, the connecting base is in a retracted position, and when the support assembly is in use, the connecting base is in an extended position.

[0012] Furthermore, the seat base is provided with a locking assembly that cooperates with the connecting base, and the locking assembly is suitable for locking the connecting base. The locking assembly can limit the connecting base in an extended position or a retracted position, thereby keeping the support assembly in a use state or a folded state.

[0013] Furthermore, the support part includes an inner tube and an outer tube that are slidably connected to each other up and down, the top of the outer tube is arranged on the connecting base, and the bottom of the inner tube is used to abut against the floor of the car compartment. An adjustment component is provided between the inner tube and the outer tube, and the adjustment component is suitable for realizing mutual locking and multi-level adjustment of the inner tube and the outer tube.

[0014] Furthermore, an abutment block is provided on the connecting base, and the abutment block is suitable for abutting and cooperating with the height indicator. Then, when the connecting base slides from the retracted position to the extended position, the connecting base can drive the height indicator to slide from the first working position to the second working position through the abutment block.

[0015] Furthermore, an elastic reset member is provided between the seat cover and the height indicator, and the elastic reset member is suitable for continuously applying a force to the height indicator to move toward the first working position, so that when the external force acting on the height indicator by the connecting base is removed, the height indicator can be reset from the second working position to the first working position under the action of the elastic reset member.

[0016] Another aspect of the present application provides a child safety seat, comprising the above-mentioned support leg structure of the child safety seat.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The support leg structure provided in the present application is provided with a height indicator on the seat cover, and the height indicator includes a first indicator area and a second indicator area. When the state of the support component changes, the first indicator area and the second indicator area are selectively displayed, and the height range corresponding to the state of the support component can be displayed. Then, the user can observe the height range displayed in the first indicator area or the second indicator area through the indicator window on the seat cover, so that the user can know what height of children requires the use of the support component when using the safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded view of the support leg structure of the present application;

[0020] FIG2 is a schematic structural diagram of a support assembly in the support leg structure of the present application;

[0021] FIG3 is a schematic structural diagram of a height indicator in the supporting leg structure of the present application;

[0022] FIG4 is a schematic structural diagram of the seat cover and the height indicator in the support leg structure of the present application;

[0023] FIG5 is a partial enlarged view of point A in FIG4 ;

[0024] FIG6 is a schematic structural diagram of the support assembly and the seat base when the support assembly in the support leg structure of the present application is in a folded state;

[0025] FIG7 is a schematic structural diagram of the support assembly and the seat base when the support assembly in the support leg structure of the present application is in use;

[0026] FIG8 is a schematic structural diagram of the height indicator and the seat cover when the support assembly of the support leg structure of the present application is in a folded state;

[0027] FIG9 is a schematic structural diagram of the height indicator and the seat cover when the support assembly in the support leg structure of the present application is in use.

[0028] In the figure: 100, support assembly; 110, connecting base; 111, abutment block; 120, support part; 121, outer tube; 122, inner tube; 123, adjustment assembly; 200, seat base; 210, first sliding groove; 220, locking assembly; 300, seat cover; 310, positioning column; 320, indication window; 330, elastic return member; 400, height indicator; 410, first end; 411, second sliding groove; 420, second end; 421, first indication area; 422, second indication area. DETAILED DESCRIPTION

[0029] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships 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, and cannot be understood as limiting the specific scope of protection of this application.

[0031] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0032] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0033] The support leg structure shown in Figure 1 includes a support assembly 100, a seat base 200, and a seat cover 300 disposed on the seat base 200. The support assembly 100 is disposed within a cavity formed by the seat base 200 and the seat cover 300. The support assembly 100 can be transformed between a folded state and a use state under the action of an external force. When a user needs to use the support leg structure, the support assembly 100 can be transformed into the use state, and when the user does not need to use the support leg structure, the support assembly 100 can be transformed into the folded state. A height indicator 400 is also disposed within the cavity between the seat base 200 and the seat cover 300. The height indicator 400 is adapted to display different height ranges depending on the state of the support assembly 100.

[0034] Furthermore, as shown in Figure 2, the support assembly 100 specifically includes a connecting base 110 and a support portion 120 arranged on the connecting base 110. One end of the support portion 120 is fixedly arranged on the connecting base 110, and the other end of the support portion 120 is suitable for abutting against the chassis of the car. Therefore, when the support assembly 100 is in use, the support portion 120 can support the child safety seat and play an anti-flipping role for the seat, thereby preventing the child safety seat from flipping over when the car brakes suddenly. The support portion 120 is preferably a telescopic structure. The support portion 120 includes an inner tube 122 and an outer tube 121 that are slidably connected to each other up and down. The bottom of the inner tube 122 is used to abut against the floor of the automobile compartment. An adjustment component 123 is provided between the inner tube 122 and the outer tube 121 to achieve mutual locking and multi-level adjustment of the inner tube 122 and the outer tube 121, so that the support portion 120 can adapt to vehicle models with different seat heights and has better applicability; at the same time, when the support component 100 is in a folded state, the inner tube 122 can be retracted to the inside of the outer tube 121, reducing the space required for the support portion 120.

[0035] The seat base 200 also defines a first sliding slot 210. The connecting base 110 is movably disposed within the first sliding slot 210. The connecting base 110 can slide within the first sliding slot 210, thereby driving the support portion 120 to slide back and forth between an extended position and a retracted position, thereby switching the support assembly 100 between a use state and a stowed state. The seat base 200 also includes a locking assembly 220 that cooperates with the connecting base 110. The locking assembly 220 is adapted to lock or unlock the connecting base 110, thereby retaining the connecting base 110 and the support portion 120 in the extended or retracted position, or allowing the connecting base 110 to slide back and forth between the extended and retracted positions. Specifically, when the locking assembly 220 locks the connecting base 110, the locking assembly 220 engages with the connecting base 110, and the connecting base 110 is restrained and cannot slide, so that the support portion 120 remains in the extended or retracted position, and the support assembly 100 as a whole remains in the use state or the folded state. This prevents the support assembly 100 from being affected by external forces during use, which could affect the normal use of the support leg structure. The locking assembly 220 can be a locking structure commonly used in the prior art, such as a snap block or a limit buckle.

[0036] As shown in Figures 3-5, a height indicator 400 is provided on the seat cover 300. The height indicator 400 is adapted to display different applicable height ranges according to changes in the state of the support assembly 100. The height indicator 400 specifically includes a first end 410 and a second end 420. The first end 410 is provided with a second sliding groove 411, which extends along the length of the height indicator 400. A positioning post 310 is fixedly provided at the bottom of the seat cover 300 to cooperate with the second sliding groove 411. The positioning post 310 is a cylindrical cavity structure extending vertically toward the height indicator 400. The positioning post 310 can slide within the sliding groove, and the height indicator 400 can then slide back and forth between the first working position and the second working position under the action of an external force.

[0037] A first indicator area 421 and a second indicator area 422 are provided on the second end portion 420 of the height indicator 400. The first indicator area 421 is used to display the height range for which the support assembly 100 is not required, and the second indicator area 422 is used to display the height range for which the support assembly 100 is required. When the support assembly 100 is in the collapsed state, the height indicator 400 is adapted to display the first indicator area 421. When the support assembly 100 is in use, the height indicator 400 is adapted to display the second indicator area 422. The height range displayed in the first indicator area 421 is 106 cm to 125 cm, and the height range displayed in the second indicator area 422 is 40 cm to 105 cm. The height ranges herein are merely illustrative. This embodiment does not limit the specific values ​​of the height ranges displayed in the first indicator area 421 and the second indicator area 422. The specific values ​​of the displayed height ranges can be determined based on different types of child seats.

[0038] As shown in Figures 1-9, an indicator window 320 is provided at a position on the seat cover 300 corresponding to the height indicator 400. Either a first indicator area 421 or a second indicator area 422 is displayed in the indicator window 320, allowing the user to view the height range displayed in the first indicator area 421 or the second indicator area 422 through the indicator window 320. The indicator window 320 is a long, rectangular through-hole, and the height indicator 400 can move left and right relative to the indicator window 320. When the support assembly 100 is in the retracted state, only the first indicator area 421 is displayed in the indicator window 320. When the support assembly 100 is in use, only the second indicator area 422 is displayed in the indicator window 320. In this embodiment, the indicator window 320 is provided to display the corresponding height range, making the prompt more concise and clear.

[0039] The connecting base 110 is further provided with an abutment block 111 , which extends vertically toward the height indicator 400 and contacts and abuts against the first end portion 410 of the height indicator 400 to drive the height indicator 400 to slide from the first working position to the second working position.

[0040] As shown in Figures 6 and 8, when the user is not using the support assembly 100, the support assembly 100 is in a folded state, the connecting base 110 is in a retracted position, and the height indicator 400 is also in the first working position. At this time, the first indicator area 421 is displayed in the indicator window 320. The user can observe the height range displayed on the first indicator area 421 through the indicator window 320, and the user can know the height range of children who do not need to use the support assembly 100.

[0041] As shown in Figures 7 and 9, when the user wants to use the support assembly 100 and operate the support part 120, the connecting base 110 is driven by the support part 120 to slide from the retracted position to the extended position. At the same time, the connecting base 110 slides and drives the height indicator 400 to slide from the first working position to the second working position through the abutment block 111. At this time, the second indicator area 422 is displayed in the indicator window 320. The user can observe the height range displayed on the second indicator area 422 through the indicator window 320. The user can compare the height of the child using the safety seat with the height range displayed on the second indicator area 422 to see whether the support assembly 100 needs to be used.

[0042] An elastic return member 330 is also provided between the height indicator 400 and the seat cover 300. When the external force acting on the height indicator 400 is removed, the height indicator 400 can be reset from the second working position to the first working position under the action of the elastic return member 330. That is, when the connecting base 110 slides from the extended position to the retracted position under the drive of the support portion 120, the height indicator 400 can automatically reset to the first working position so that the first indication area 421 can be displayed in the indication window 320. The elastic return member 330 can be any material with elastic energy storage, such as an elastic tension spring, elastic rubber, etc. In this embodiment, the elastic return member 330 is an elastic tension spring, one end of which is mounted on the fixed seat of the seat cover 300, and the other end of which is mounted on the first end 410 of the height indicator 400. Specifically, when the connecting base 110 slides from the retracted position to the extended position driven by the support portion 120, the height indicator 400 slides from the first working position to the second working position driven by the abutment block 111 of the support portion 120. At this time, the second indication area 422 is displayed in the indication window 320, and the elastic tension spring is stretched and deformed; when the connecting base 110 slides back to the retracted position from the extended position driven by the support portion 120, the abutment block 111 of the connecting base 110 is separated from the height indicator 400, and the force acting on the height indicator 400 is also removed accordingly. The elastic tension spring recovers its deformation, pulling the height indicator 400 back from the second working position to the first working position. At this time, the first indication area 421 is displayed in the indication window 320.

[0043] Of course, in other embodiments, the elastic return member 330 may not be provided between the height indicator 400 and the seat cover 300, but an additional abutment block 111 may be provided on the connecting base 110, so that the two abutment blocks 111 can respectively abut against the first end 410 and the second end 420 of the height indicator 400, so that when the connecting base 110 slides from the retracted position to the extended position, the abutment block 111 near the first end 410 abuts against the first end 410 of the height indicator 400, pushing the height indicator 400 to slide from the first working position to the extended position. When the connecting base 110 slides from the extended position to the retracted position, the abutting block 111 close to the second end 420 abuts against the second end 420 of the height indicator 400, pushing the height indicator 400 to slide from the second working position to the first working position, so that the position of the height indicator 400 can be consistent with that of the support assembly 100, that is, when the support assembly 100 is in use, the height indicator 400 is in the second working position, and when the support assembly 100 is in the folded state, the height indicator 400 is in the first working position.

[0044] In other embodiments, the height indicator 400 may also be directly fixed on the connecting base 110 and slide along with the connecting base 110 .

[0045] Another aspect of the present application is to provide a child safety seat, comprising the above-mentioned child safety seat support leg structure.

[0046] The above describes 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 to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A support leg structure, comprising a seat base and a seat cover arranged on the seat base, wherein a support assembly is slidably arranged on the seat base, and the support assembly can be extended and retracted relative to the seat base to change between a folded state and a use state, characterized in that: A height indicator is movably provided on the seat cover, and at least one indicator area is provided on the height indicator, each of which is suitable for displaying a different height range. An indicator window corresponding to the position of the height indicator is provided on the seat cover, and when the support assembly is changed between the folded state and the use state, the support assembly can drive the height indicator to slide relative to the indicator window, so that each of the indicator areas can be selectively displayed in the indicator window.

2. The support leg structure according to claim 1, characterized in that: A second sliding groove is provided on the height indicator, and the second sliding groove extends along the length direction of the height indicator. A positioning column cooperating with the second sliding groove is provided on the seat cover, so that the height indicator can slide between the first working position and the second working position under the drive of the support assembly.

3. The support leg structure according to claim 2, characterized in that: The height indicator is provided with a first indication area and a second indication area, the first indication area is used to display the height range in which the support assembly does not need to be used, and the second indication area is used to display the height range in which the support assembly needs to be used. When the height indicator slides to the first working position, the first indication area is displayed in the indication window, and when the height indicator slides to the second working position, the second indication area is displayed in the indication window.

4. The support leg structure according to claim 3, characterized in that: The numerical value of the height range displayed in the first indication area is greater than the numerical value of the height range displayed in the second indication area.

5. The support leg structure according to claim 3, characterized in that: The support assembly includes a connection base movably arranged in the seat base and a support portion arranged on the connection base, wherein the support portion extends outside the seat base, and the support portion can be operated to drive the connection base to slide back and forth between an extended position and a retracted position. When the support assembly is in a folded state, the connection base is in a retracted position, and when the support assembly is in use, the connection base is in an extended position.

6. The support leg structure according to claim 5, characterized in that: The seat base is provided with a locking assembly cooperating with the connecting base, and the locking assembly is suitable for locking the connecting base. The locking assembly can limit the connecting base in an extended position or a retracted position, so that the supporting assembly is maintained in a use state or a folded state.

7. The support leg structure according to claim 5, characterized in that: The support part includes an inner tube and an outer tube which are connected to each other by sliding up and down. The top of the outer tube is arranged on the connecting base, and the bottom of the inner tube is used to abut against the floor of the automobile compartment. An adjustment component is arranged between the inner tube and the outer tube, and the adjustment component is suitable for realizing mutual locking and multi-level adjustment of the inner tube and the outer tube.

8. The support leg structure according to any one of claims 5 to 7, characterized in that: The connection base is provided with an abutment block, which is suitable for abutting and cooperating with the height indicator. Then, when the connection base slides from the retracted position to the extended position, the connection base can drive the height indicator to slide from the first working position to the second working position through the abutment block.

9. The support leg structure according to claim 8, characterized in that: An elastic reset member is arranged between the seat cover and the height indicator, and the elastic reset member is suitable for continuously applying a force to the height indicator to move toward the first working position, so that when the external force acting on the height indicator by the connecting base is removed, the height indicator can be reset from the second working position to the first working position under the action of the elastic reset member.

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

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