Foldable supporting leg for child safety seat and child safety seat

Abstract

The utility model relates to the technical field of child safety seats, and provides a foldable supporting leg for a child safety seat and the child safety seat, and the supporting leg comprises a movable seat which is movably connected to a base and can move between a storage position and a maximum unfolding position on the base; the supporting body is movably connected to the movable seat and can move among a folding position, an unlocking position and a using position on the base; each supporting leg has an unfolding stroke and a folding stroke. The child safety seat has the advantages that the movable moving seat and the supporting body are arranged on the base, when the supporting body is stored, the moving seat is pushed to the storage position, the supporting body is pushed to the folding position, the size of the child safety seat is reduced to the maximum extent, and the size of a packaging box used by the child safety seat is reduced; the space requirement for transportation and storage of the child safety seat is lowered, and transportation and storage of the child safety seat are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of child safety seats, in particular to a foldable support leg for a child safety seat and the child safety seat. Background Art

[0002] A child safety seat is a safety device designed specifically for infants and children, used to protect them in cars and other vehicles. It typically features a specialized anchoring system that works with the vehicle's seatbelts or ISOFIX connectors to ensure children are effectively restrained and protected during travel. The support leg installed in a child safety seat is an additional safety component, its primary function being to increase seat stability and reduce forward movement in a collision, thereby enhancing safety.

[0003] The support legs on most child safety seats are generally configured to be rotated and folded. However, since the support legs are still part of the child safety seat no matter how they are rotated and folded, the presence of the support legs causes the packaging boxes used to package the child safety seats to be larger, which undoubtedly increases the transportation space and storage space, causing difficulties in transportation and storage. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a foldable support leg for a child safety seat and a child safety seat in view of the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: to provide a foldable support leg for a child safety seat, wherein the child safety seat comprises a base, and is characterized in that the support leg comprises:

[0006] a movable seat, which is movably connected to the base and can move between a storage position and a maximum expansion position on the base;

[0007] A support body is movably connected to the movable seat and can move between a folded position, an unlocked position and a use position on the base, wherein the unlocked position is located between the folded position and the use position, and when the support body is in the folded position, the end surface of the support body does not exceed the end surface of the base; wherein,

[0008] The support legs have an unfolding stroke and a folding stroke;

[0009] When in the unfolding stroke, either the movable seat or the supporting body can move after the supporting body is forced to move away from the folded position;

[0010] When in the folding stroke, the movable seat can move between the maximum unfolded position and the storage position due to the support body moving from the use position to or beyond the unlocking position.

[0011] The foldable support leg for a child safety seat further comprises:

[0012] A driving member, which is rotatably connected to the movable seat and moves synchronously with the supporting body;

[0013] a moving member movably disposed in the moving seat, wherein a first end of the moving member is connected to the driving member and is used to drive the moving member to move on the moving seat when the driving member rotates;

[0014] A locking member, which is elastically connected in the movable seat and is transmission-connected to the second end of the movable member, and a locking portion is provided on the base, and the locking portion is movably engaged with the locking member;

[0015] When the support body is in the folding stroke but has not yet reached the unlocking position, the locking member is engaged in the locking portion to keep the movable seat fixed;

[0016] When the supporting body is in the folding stroke and reaches or exceeds the unlocking position, the second end of the moving member pushes the locking member to disengage from the locking portion, so that the moving seat can move relative to the base.

[0017] In the above-mentioned foldable support leg for a child safety seat, the locking member includes a main body, the main body is provided with a first inclined surface, and the movable member is provided with a second inclined surface, the second inclined surface movably abutting against the first inclined surface;

[0018] When the moving member moves on the moving seat, the first inclined surface and the second inclined surface push the locking member to separate from the locking portion.

[0019] In the above-mentioned foldable support leg for a child safety seat, the mobile seat includes:

[0020] a guide tube, the guide tube being fixed to the movable seat, and one end of the guide tube away from the movable seat being movably inserted into the base, an elastic member being provided in the guide tube, one end of the elastic member being pressed against the inner wall of the guide tube, and the other end being pressed against the locking member;

[0021] A limit block is fixed on the movable seat. When the support body moves to the use position, the limit block is pressed against the end of the support body to provide a limit for the support body.

[0022] In the above-mentioned foldable support leg for a child safety seat, the locking member includes a pin connected to the main body, the second end of the movable member is provided with a guide groove sleeved on the outside of the pin, and the guide groove is used to provide guidance for the movement of the locking member, and the base is provided with a locking hole forming the locking portion, and the pin is movably inserted in the locking hole.

[0023] In the above-mentioned foldable support leg for a child safety seat, a rotating shaft is provided on the movable seat, the supporting body is rotatably connected to the movable seat via the rotating shaft, and the driving member is connected to one end of the rotating shaft to drive the driving member to move on the movable seat when the supporting body rotates.

[0024] In the above-mentioned foldable support leg for a child safety seat, a driving groove is provided at the first end of the movable member, and a driving portion is provided on the driving member, whose center line is not colinear with the rotation center line of the rotating shaft. The driving portion is movably inserted in the driving groove to drive the movable member to move when the driving member rotates.

[0025] In the above-mentioned foldable support leg for a child safety seat, a first torsion spring is provided on the outer side of the rotating shaft, and a first deformation part and a second deformation part are provided on the first torsion spring. The first deformation part is connected to the movable seat, and the second deformation part is pressed against the support body. When the support body moves to the folded position, the second deformation part is driven to approach the first deformation part, so as to compress the first torsion spring and store energy.

[0026] In the above-mentioned foldable support leg for a child safety seat, a protective cover is rotatably provided on the movable seat, and the protective cover moves synchronously with the support body to cover the end of the support body when the support body moves to the folded position.

[0027] The present invention solves the above technical problems and further provides a child safety seat, comprising the above-mentioned foldable support leg for a child safety seat.

[0028] Compared with the prior art, the advantage of the present invention is that by arranging a movable movable seat and a supporting body on the base, when the supporting body is stored, the movable seat is pushed to the storage position, the supporting body is pushed to the folded position, and the end surface of the supporting body is not higher than the end surface of the base, thereby minimizing the volume of the child safety seat to the greatest extent, reducing the volume of the packaging box used for the child safety seat, reducing the space requirement for its transportation and storage, and facilitating the transportation and storage of the child safety seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a three-dimensional diagram of a foldable support leg movable seat for a child safety seat of the present invention when the movable seat is in the storage position and the support body is in the folded position;

[0030] Figure 2 yes Figure 1 A partial cross-sectional view of

[0031] Figure 3 yes Figure 2 A three-dimensional diagram of the middle structure;

[0032] Figure 4 This is a three-dimensional diagram of a foldable support leg movable seat for a child safety seat of the present invention when the movable seat is in the maximum unfolded position and the support body is in the use position;

[0033] Figure 5 yes Figure 4 A partial cross-sectional view of

[0034] Figure 6 yes Figure 5 The three-dimensional image after removing the limit block;

[0035] Figure 7 yes Figure 6 A three-dimensional diagram of the middle structure;

[0036] Figure 8 This is a three-dimensional diagram of the movable base, support body, and protective cover when connected.

[0037] In the figure, 100, base; 110, locking hole; 200, movable seat; 210, guide tube; 220, elastic member; 230, rotating shaft; 240, first torsion spring; 241, first deformation part; 242, second deformation part; 250, second torsion spring; 251, first hook; 252, second hook; 260, limit block; 300, supporting body; 400, driving member; 410, driving part; 500, movable member; 510, second inclined surface; 520, guide groove; 530, driving groove; 600, locking member; 610, main body; 611, first inclined surface; 620, latch; 700, protective cover. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] like Figures 1 to 8 As shown, in this solution, the application of the support leg on the child safety seat and the specific structure of the support leg are mainly described in detail.

[0040] A foldable support leg for a child safety seat. The child safety seat comprises a base, and the support leg comprises a movable seat 200 and a support body 300.

[0041] Specifically, the movable seat 200 is movably connected to the base 100 and can move between a storage position and a maximum expanded position on the base 100; the support body 300 is movably connected to the movable seat 200 and can move between a folded position, an unlocked position and a use position on the base 100, the unlocked position is between the folded position and the use position, and when the support body 300 is in the folded position, the end surface of the support body 300 is not higher than the end surface of the base 100; wherein, the support legs have an expansion stroke and a folding stroke; when in the expansion stroke, either the movable seat 200 or the support body 300 can move after the support body 300 is forced to move out of the folded position; when in the folding stroke, the movable seat 200 can move between the maximum expanded position and the storage position because the support body 300 moves from the use position to or beyond the unlocked position.

[0042] Reference Figure 1 At this time, the movable base 200 is in the stowed position and the support body 300 is fixed in the folded position. When the support legs are in the unfolded position and need to be supported on the vehicle floor, first apply force to the support body 300 to move it out of the folded position, and then follow the steps below:

[0043] First, the support body 300 is moved relative to the base 100 to the use position, and then the movable base 200 is moved relative to the base 100 to the maximum extended position;

[0044] Alternatively, the movable base 200 is first moved relative to the base 100 to the maximum extended position, and then the supporting body 300 is moved relative to the base 100 to the use position;

[0045] Alternatively, the support body 300 and the movable base 200 move simultaneously so that the support legs are located at Figure 4 The status shown.

[0046] Similarly, when the support legs are in the folding stroke and the support body 300 needs to be pushed to the folded position and the movable seat 200 needs to be pushed to the storage position, the support body 300 needs to be pushed to the unlocked position or beyond the unlocked position to unlock the movable seat 200, and then the movable seat 200 and the support body 300 need to be pushed to the storage position and the folded position respectively.

[0047] The support body 300 can be fixed in the folded position by providing an elastic buckle on the base 100. When the support body 300 is in the folded position, the elastic buckle is fixed to the side wall of the support body 300 to fix the support body 300.

[0048] In this solution, a movable movable seat 200 and a support body 300 are provided on the base 100. When the support body 300 is stored, the movable seat 200 is pushed to the storage position, and the support body 300 is pushed to the folded position, and the end surface of the support body 300 is not higher than the end surface of the base 100. This minimizes the volume of the child safety seat to the greatest extent, reduces the volume of the packaging box used for the child safety seat, reduces the space required for its transportation and storage, and facilitates the transportation and storage of the child safety seat.

[0049] In one embodiment, it also includes: a driving member 400, which is rotatably connected to the moving base 200 and moves synchronously with the support body 300; a moving member 500, which is movably arranged in the moving base 200, and a first end of the moving member 500 is connected to the driving member 400, for driving the moving member 500 to move on the moving base 200 when the driving member 400 rotates; a locking member 600, which is elastically connected in the moving base 200 and is transmission-connected to the second end of the moving member 500, and a locking portion is provided on the base 100, which is movably engaged with the locking member 600; when it is in the folding stroke but the support body 300 has not yet reached the unlocking position, the locking member 600 is engaged in the locking portion to keep the moving base 200 fixed; when it is in the folding stroke and the support body 300 reaches or crosses the unlocking position, the second end of the moving member 500 pushes the locking member 600 to disengage from the locking portion, so that the moving base 200 can move relative to the base 100.

[0050] Reference Figure 4 , at this time, the support body 300 is in the use position and the movable base 200 is in the maximum unfolded position. When the support legs are in the folding stroke, the support body 300 is first driven to move toward the base 100 to or beyond the unlocked position. When the support body 300 moves, it first drives the driving member 400 around Figure 7 As shown, the driving member 400 rotates clockwise. Figure 7 When the movable member 500 moves, the locking member 600 is pushed to disengage from the locking portion, so that the movable base 200 can move from the maximum unfolded position to the storage position.

[0051] Similarly, when the movable base 200 is in the unfolded stroke position and the support body 300 passes the unlocked position from the folded position, the locking member 600 is re-engaged in the locking portion to fix the movable base 200 in the maximum unfolded position.

[0052] In one embodiment, the locking member 600 includes a main body 610 , the main body 610 is provided with a first inclined surface 611 , and the moving member 500 is provided with a second inclined surface 510 , and the second inclined surface 510 is movably pressed against the first inclined surface 611 ;

[0053] When the moving member 500 moves on the moving seat 200, the first inclined surface 611 and the second inclined surface 510 push the locking member 600 to separate from the locking part. The first inclined surface 611 and the second inclined surface 510 are preferably two, and are respectively arranged on both sides of the locking member 600 to prevent the locking member 600 from tilting when the moving member 500 pushes the locking member 600 to separate from the locking part.

[0054] Reference Figure 5 and Figure 7 At this time, the locking member 600 is engaged with the locking portion, fixing the movable seat 200 at the maximum expansion position. When the movable member 500 moves along Figure 7 When the moving member 500 moves from right to left, the second inclined surface 510 on the moving member 500 pushes the locking member 600 along the first inclined surface 611. Figure 7 Move from the outside to the inside to disengage the locking member 600 from the locking portion.

[0055] In one embodiment, the movable seat 200 includes: a guide tube 210, which is fixed on the movable seat 200, and one end of the guide tube 210 away from the movable seat 200 is movably inserted in the base 100, and an elastic member 220 is provided in the guide tube 210, one end of the elastic member 220 is pressed against the inner wall of the guide tube 210, and the other end is pressed against the locking member 600; a limit block 260, which is fixed on the movable seat 200, and when the support body 300 moves to the use position, the limit block 260 is pressed against the end of the support body 300 to provide a limit for the support body 300.

[0056] Reference Figure 7 When the moving member 500 pushes the locking member 600 to disengage from the locking portion, the elastic member 220 is compressed and stores energy due to the pressure from the locking member 600. After the moving member 500 moves in the opposite direction and removes the force applied to the locking member 600, the elastic member 220 pushes the locking member 600 back into the locking portion. The guide tube 210 is used to connect the locking member 600 and the elastic member 220 to the moving base 200. Preferably, the elastic member 220 is a spring.

[0057] Reference Figure 5 and Figure 6 At this time, the support body 300 is in the use position. After the support body 300 moves from the folded position to the use position, the upper end of the support body 300 is pressed against the limit block 260 to prevent the support body 300 from continuing to move along the unfolding direction, thereby ensuring the correctness of the support body 300 moving to the use position.

[0058] In one embodiment, the locking member 600 includes a pin 620 connected to the main body 610, and the second end of the movable member 500 is provided with a guide groove 520 arranged on the outside of the pin 620, and the guide groove 520 is used to provide a guide for the movement of the locking member 600. The base 100 is provided with a locking hole 110 forming a locking portion, and the pin 620 is movably inserted in the locking hole 110.

[0059] The main body 610 and the latch 620 can be integrally formed or provided separately. The guide groove 520 is used to guide the locking member 600 during movement, and can also provide a clearance for the relative displacement of the locking member 600 and the locking portion when the movable member 500 moves relative to the locking member 600.

[0060] The movable base 200 is provided with a rotating shaft 230 , and the supporting body 300 is rotatably connected to the movable base 200 via the rotating shaft 230 . The driving member 400 is connected to one end of the rotating shaft 230 to drive the driving member 400 to move on the movable base 200 when the supporting body 300 rotates.

[0061] Reference Figure 6 The rotating shaft 230 is rotatably disposed on the movable base 200 , and the supporting body 300 is fixedly connected to the rotating shaft 230 . When the supporting body 300 drives the rotating shaft 230 to rotate relative to the movable base 200 , the driving member 400 is driven to rotate.

[0062] In one embodiment, a driving groove 530 is provided at the first end of the movable member 500, and a driving portion 410 is provided on the driving member 400, whose center line is not colinear with the rotation center line of the rotating shaft 230. The driving portion 410 is movably inserted in the driving groove 530 to drive the movable member 500 to move when the driving member 400 rotates.

[0063] The driving portion 410 , whose center line is not colinear with the center line of the rotating shaft 230 , is used to set an eccentric structure on the driving member 400 . In this way, when the rotating shaft 230 drives the driving member 400 to rotate, the driving portion 410 can drive the moving member 500 to move through the driving slot 530 .

[0064] In one embodiment, a first torsion spring 240 is sleeved on the outer side of the rotating shaft 230, and a first deforming portion 241 and a second deforming portion 242 are provided on the first torsion spring 240. The first deforming portion 241 is connected to the movable seat 200, and the second deforming portion 242 is pressed against the supporting body 300. When the supporting body 300 moves to the folded position, the second deforming portion 242 is driven to approach the first deforming portion 241, so as to compress the first torsion spring 240 and store energy.

[0065] The first torsion spring 240 and its first deforming portion 241 and second deforming portion 242 ensure that the support body 300 is constantly pushed by the first torsion spring 240 regardless of its position. When the support body 300 is in the folded position, the thrust of the first torsion spring 240 and the pressing force of the base 100 against the support body 300 work together to secure the support body 300 in the folded position, preventing the support body 300 from rocking relative to the base 100 during transportation of the child safety seat. Furthermore, when the support body 300 is out of the folded position, the first torsion spring 240 extends and propels the support body 300 to the use position.

[0066] In one embodiment, a protective cover 700 is rotatably provided on the movable base 200 . The protective cover 700 moves synchronously with the supporting body 300 to cover the end of the supporting body 300 when the supporting body 300 moves to the folded position.

[0067] Reference Figure 1 、 Figure 5 and Figure 8 A second torsion spring 250 is provided between the protective cover 700 and the movable base 200 for the protective cover 700 and the supporting body 300 to move synchronously. The second torsion spring 250 has a first hook 251 and a second hook 252. The first hook 251 is fixed on the protective cover 700, and the second hook 252 is fixed on the movable base 200. When the supporting body 300 is in Figure 5 In the use position shown, under the action of the support body 300, the distance between the first hook 251 and the second hook 252 is pulled apart, so that the second torsion spring 250 is in an elastic energy storage state. When the support body 300 moves from the use position to the folded position, the second torsion spring 250 pushes the protective cover 700 to move synchronously with the support body 300 until the position is reached. Figure 1 In the state shown, the protective cover 700 covers the end of the support body 300 to prevent the user's fingers from being inserted between the support body 300 and the movable base 200 and causing injuries.

[0068] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement status of the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0069] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0070] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0071] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0072] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the scope defined by the spirit of the present invention.

Claims

1. A foldable support leg for a child safety seat, the child safety seat comprising a base, characterized in that: The supporting legs include: a movable seat, which is movably connected to the base and can move between a storage position and a maximum expansion position on the base; A support body is movably connected to the movable seat and can move between a folded position, an unlocked position and a use position on the base, wherein the unlocked position is located between the folded position and the use position, and when the support body is in the folded position, the end surface of the support body does not exceed the end surface of the base; wherein, The support legs have an unfolding stroke and a folding stroke; When in the unfolding stroke, either the movable seat or the supporting body can move after the supporting body is forced to move away from the folded position; When in the folding stroke, the movable seat can move between the maximum unfolded position and the storage position due to the support body moving from the use position to or beyond the unlocking position.

2. A foldable support leg for a child safety seat according to claim 1, characterized in that: Also includes: A driving member, which is rotatably connected to the movable seat and moves synchronously with the supporting body; a moving member movably disposed in the moving seat, wherein a first end of the moving member is connected to the driving member and is used to drive the moving member to move on the moving seat when the driving member rotates; A locking member, which is elastically connected in the movable seat and is transmission-connected to the second end of the movable member, and a locking portion is provided on the base, and the locking portion is movably engaged with the locking member; When the support body is in the folding stroke but has not yet reached the unlocking position, the locking member is engaged in the locking portion to keep the movable seat fixed; When the supporting body is in the folding stroke and reaches or exceeds the unlocking position, the second end of the moving member pushes the locking member to disengage from the locking portion, so that the moving seat can move relative to the base.

3. A foldable support leg for a child safety seat according to claim 2, characterized in that: The locking member includes a main body, a first inclined surface is provided on the main body, and a second inclined surface is provided on the movable member, and the second inclined surface is movably pressed against the first inclined surface; When the moving member moves on the moving seat, the first inclined surface and the second inclined surface push the locking member to separate from the locking portion.

4. A foldable support leg for a child safety seat according to claim 2, characterized in that: The mobile seat comprises: a guide tube, the guide tube being fixed to the movable seat, and one end of the guide tube away from the movable seat being movably inserted into the base, an elastic member being provided in the guide tube, one end of the elastic member being pressed against the inner wall of the guide tube, and the other end being pressed against the locking member; A limit block is fixed on the movable seat. When the support body moves to the use position, the limit block is pressed against the end of the support body to provide a limit for the support body.

5. A foldable support leg for a child safety seat according to claim 3, characterized in that: The locking member includes a latch connected to the main body, and the second end of the movable member is provided with a guide groove sleeved on the outside of the latch, and the guide groove is used to provide guidance for the movement of the locking member. The base is provided with a locking hole forming the locking portion, and the latch is movably inserted in the locking hole.

6. A foldable support leg for a child safety seat according to claim 2, characterized in that: The movable seat is provided with a rotating shaft, the supporting body is rotatably connected to the movable seat via the rotating shaft, and the driving member is connected to one end of the rotating shaft to drive the driving member to move on the movable seat when the supporting body rotates.

7. A foldable support leg for a child safety seat according to claim 6, characterized in that: A driving groove is provided at the first end of the movable member, and a driving portion is provided on the driving member, the center line of which is not colinear with the rotation center line of the rotating shaft. The driving portion is movably inserted in the driving groove to drive the movable member to move when the driving member rotates.

8. The foldable support leg for a child safety seat according to claim 6, wherein: A first torsion spring is sleeved on the outer side of the rotating shaft, and a first deformation part and a second deformation part are provided on the first torsion spring. The first deformation part is connected to the movable seat, and the second deformation part is pressed against the supporting body. When the supporting body moves to the folded position, the second deformation part is driven to approach the first deformation part, so as to compress the first torsion spring and store energy.

9. The foldable support leg for a child safety seat according to claim 1, wherein: A protective cover is rotatably provided on the movable seat, and the protective cover moves synchronously with the supporting body, and is used for covering the end of the supporting body when the supporting body moves to the folding position.

10. A child safety seat, characterized in that: The invention comprises a foldable support leg for a child safety seat according to any one of claims 1 to 9.

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